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Added Zstandard support for zip archives and CHDs. (#11827)

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* 3rdparty/zstd: Added Zstandard compression library version 1.5.5.
* util/unzip.cpp: Added support for Zstandard compression (method 93).
* util/chdcodec.cpp: Added support for Zstandard compression.
* 3rdparty/flac: Always define NDEBUG to avoid log spam.
This commit is contained in:
Vas Crabb 2023-12-11 10:48:02 +11:00 committed by GitHub
parent 1a4287925e
commit 05e69b43e9
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607 changed files with 163840 additions and 17 deletions
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6
3rdparty/README.md vendored
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@ -22,12 +22,12 @@ dxsdk - [DirectX SDK EULA](https://github.com/mamedev/mame/blob/master/3rdparty/
expat - [The MIT License (MIT)](http://opensource.org/licenses/MIT)
flac - [The BSD 3-Clause License](http://opensource.org/licenses/BSD-3-Clause) (codecs), [The GNU General Public License, version 2](https://opensource.org/licenses/GPL-2.0)
genie - [The BSD 3-Clause License](http://opensource.org/licenses/BSD-3-Clause)
glm - [The MIT License (MIT)](http://opensource.org/licenses/MIT)
libflac - [The BSD 3-Clause License](http://opensource.org/licenses/BSD-3-Clause) (codecs), [The GNU General Public License, version 2](https://opensource.org/licenses/GPL-2.0)
libjpeg - [Custom BSD-like](https://github.com/numenta/nupic/blob/master/external/licenses/LICENSE.libjpeg-6b.txt)
linenoise - [The BSD 2-Clause License](http://opensource.org/licenses/BSD-2-Clause)
@ -71,3 +71,5 @@ utf8proc - [The MIT License (MIT)](http://opensource.org/licenses/MIT)
wdlfft - [zlib license](http://opensource.org/licenses/Zlib)
zlib - [zlib license](http://opensource.org/licenses/Zlib)
zstd - Dual-licensed [The BSD 3-Clause License](http://opensource.org/licenses/BSD-3-Clause) and [The GNU General Public License, version 2](https://opensource.org/licenses/GPL-2.0)

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3rdparty/zstd/.buckconfig vendored Normal file
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[cxx]
cppflags = -DXXH_NAMESPACE=ZSTD_ -DZSTD_LEGACY_SUPPORT=4
cflags = -Wall -Wextra -Wcast-qual -Wcast-align -Wshadow -Wstrict-aliasing=1 -Wswitch-enum -Wdeclaration-after-statement -Wstrict-prototypes -Wundef -Wpointer-arith
cxxppflags = -DXXH_NAMESPACE=ZSTD_ -DZSTD_LEGACY_SUPPORT=4
cxxflags = -std=c++11 -Wno-deprecated-declarations
gtest_dep = //contrib/pzstd:gtest
[httpserver]
port = 0

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@ -0,0 +1 @@
c8dec2e8da52d483f6dd7c6cd2ad694e8e6fed2b

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@ -0,0 +1,123 @@
version: 2
jobs:
# the first half of the jobs are in this test
short-tests-0:
# TODO: Create a small custom docker image with all the dependencies we need
# preinstalled to reduce installation time.
docker:
- image: fbopensource/zstd-circleci-primary:0.0.1
steps:
- checkout
- run:
name: Test
command: |
./tests/test-license.py
cc -v
CFLAGS="-O0 -Werror -pedantic" make allmost; make clean
make c99build; make clean
make c11build; make clean
make -j regressiontest; make clean
make shortest; make clean
make cxxtest; make clean
# the second half of the jobs are in this test
short-tests-1:
docker:
- image: fbopensource/zstd-circleci-primary:0.0.1
steps:
- checkout
- run:
name: Test
command: |
make gnu90build; make clean
make gnu99build; make clean
make ppc64build V=1; make clean
make ppcbuild V=1; make clean
make armbuild V=1; make clean
make aarch64build V=1; make clean
make -C tests test-legacy test-longmatch; make clean
make -C lib libzstd-nomt; make clean
# This step should only be run in a cron job
regression-test:
docker:
- image: fbopensource/zstd-circleci-primary:0.0.1
environment:
CIRCLE_ARTIFACTS: /tmp/circleci-artifacts
steps:
- checkout
# Restore the cached resources.
- restore_cache:
# We try our best to bust the cache when the data changes by hashing
# data.c. If that doesn't work, simply update the version number here
# and below. If we fail to bust the cache, the regression testing will
# still work, since it has its own stamp, but will need to redownload
# everything.
keys:
- regression-cache-{{ checksum "tests/regression/data.c" }}-v0
- run:
name: Regression Test
command: |
make -C programs zstd
make -C tests/regression test
mkdir -p $CIRCLE_ARTIFACTS
./tests/regression/test \
--cache tests/regression/cache \
--output $CIRCLE_ARTIFACTS/results.csv \
--zstd programs/zstd
echo "NOTE: The new results.csv is uploaded as an artifact to this job"
echo " If this fails, go to the Artifacts pane in CircleCI, "
echo " download /tmp/circleci-artifacts/results.csv, and if they "
echo " are still good, copy it into the repo and commit it."
echo "> diff tests/regression/results.csv $CIRCLE_ARTIFACTS/results.csv"
diff tests/regression/results.csv $CIRCLE_ARTIFACTS/results.csv
# Only save the cache on success (default), since if the failure happened
# before we stamp the data cache, we will have a bad cache for this key.
- save_cache:
key: regression-cache-{{ checksum "tests/regression/data.c" }}-v0
paths:
- tests/regression/cache
- store_artifacts:
path: /tmp/circleci-artifacts
workflows:
version: 2
commit:
jobs:
# Run the tests in parallel
- short-tests-0
- short-tests-1
- regression-test
nightly:
triggers:
- schedule:
cron: "0 0 * * *"
filters:
branches:
only:
- release
- dev
- master
jobs:
# Run daily regression tests
- regression-test
# Longer tests
#- make -C tests test-zstd-nolegacy && make clean
#- pyenv global 3.4.4; make -C tests versionsTest && make clean
#- make zlibwrapper && make clean
#- gcc -v; make -C tests test32 MOREFLAGS="-I/usr/include/x86_64-linux-gnu" && make clean
#- make uasan && make clean
#- make asan32 && make clean
#- make -C tests test32 CC=clang MOREFLAGS="-g -fsanitize=address -I/usr/include/x86_64-linux-gnu"
# Valgrind tests
#- CFLAGS="-O1 -g" make -C zlibWrapper valgrindTest && make clean
#- make -C tests valgrindTest && make clean
# ARM, AArch64, PowerPC, PowerPC64 tests
#- make ppctest && make clean
#- make ppc64test && make clean
#- make armtest && make clean
#- make aarch64test && make clean

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@ -0,0 +1,9 @@
FROM circleci/buildpack-deps@sha256:f6f10c11b7b8ccfd4f4a5b830c3256803604ce61292b60cb22e26b12f62b0e8c
RUN sudo dpkg --add-architecture i386
RUN sudo apt-get -y -qq update
RUN sudo apt-get -y install \
gcc-multilib-powerpc-linux-gnu gcc-arm-linux-gnueabi \
libc6-dev-armel-cross gcc-aarch64-linux-gnu libc6-dev-arm64-cross \
libc6-dev-ppc64-powerpc-cross zstd gzip coreutils \
libcurl4-openssl-dev

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3rdparty/zstd/.cirrus.yml vendored Normal file
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@ -0,0 +1,10 @@
task:
name: FreeBSD (shortest)
freebsd_instance:
matrix:
image_family: freebsd-13-0
image_family: freebsd-12-2
install_script: pkg install -y gmake coreutils
script: |
MOREFLAGS="-Werror" gmake -j all
gmake shortest

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3rdparty/zstd/.github/ISSUE_TEMPLATE/bug_report.md vendored Normal file
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@ -0,0 +1,35 @@
---
name: Bug report
about: Create a report to help us improve
title: ''
labels: ''
assignees: ''
---
**Describe the bug**
A clear and concise description of what the bug is.
**To Reproduce**
Steps to reproduce the behavior:
1. Downloads data '...'
2. Run '...' with flags '...'
3. Scroll up on the log to '....'
4. See error
**Expected behavior**
A clear and concise description of what you expected to happen.
**Screenshots and charts**
If applicable, add screenshots and charts to help explain your problem.
**Desktop (please complete the following information):**
- OS: [e.g. Mac]
- Version [e.g. 22]
- Compiler [e.g. gcc]
- Flags [e.g. O2]
- Other relevant hardware specs [e.g. Dual-core]
- Build system [e.g. Makefile]
**Additional context**
Add any other context about the problem here.

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3rdparty/zstd/.github/ISSUE_TEMPLATE/feature_request.md vendored Normal file
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@ -0,0 +1,20 @@
---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: ''
assignees: ''
---
**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.

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3rdparty/zstd/.github/dependabot.yml vendored Normal file
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@ -0,0 +1,6 @@
version: 2
updates:
- package-ecosystem: "github-actions"
directory: "/"
schedule:
interval: "weekly"

297
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@ -0,0 +1,297 @@
name: dev-long-tests
# Tests longer than 10mn
concurrency:
group: long-${{ github.ref }}
cancel-in-progress: true
on:
pull_request:
branches: [ dev, release, actionsTest ]
permissions: read-all
jobs:
make-all:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: make all
run: make all
# lasts ~24mn
make-test:
runs-on: ubuntu-latest
env:
DEVNULLRIGHTS: 1
READFROMBLOCKDEVICE: 1
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: make test
run: make test
# lasts ~26mn
make-test-osx:
runs-on: macos-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: OS-X test
run: make test # make -c lib all doesn't work because of the fact that it's not a tty
# lasts ~24mn
make-test-32bit:
runs-on: ubuntu-latest
env:
DEVNULLRIGHTS: 1
READFROMBLOCKDEVICE: 1
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: make test
run: |
sudo apt-get -qqq update
make libc6install
CFLAGS="-m32" make test
no-intrinsics-fuzztest:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: no intrinsics fuzztest
run: MOREFLAGS="-DZSTD_NO_INTRINSICS" make -C tests fuzztest
tsan-zstreamtest:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: thread sanitizer zstreamtest
run: CC=clang ZSTREAM_TESTTIME=-T3mn make tsan-test-zstream
ubsan-zstreamtest:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: undefined behavior sanitizer zstreamtest
run: CC=clang make uasan-test-zstream
# lasts ~15mn
tsan-fuzztest:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: thread sanitizer fuzztest
run: CC=clang make tsan-fuzztest
big-tests-zstreamtest32:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: zstream tests in 32bit mode, with big tests
run: |
sudo apt-get -qqq update
make libc6install
CC=clang make -C tests test-zstream32 FUZZER_FLAGS="--big-tests"
# lasts ~23mn
gcc-8-asan-ubsan-testzstd:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: gcc-8 + ASan + UBSan + Test Zstd
# See https://askubuntu.com/a/1428822
run: |
echo "deb [arch=amd64] http://archive.ubuntu.com/ubuntu focal main universe" | sudo tee -a /etc/apt/sources.list
sudo apt-get -qqq update
make gcc8install
CC=gcc-8 make -j uasan-test-zstd </dev/null V=1
clang-asan-ubsan-testzstd:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: clang + ASan + UBSan + Test Zstd
run: CC=clang make -j uasan-test-zstd </dev/null V=1
gcc-asan-ubsan-testzstd-32bit:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: ASan + UBSan + Test Zstd, 32bit mode
run: |
sudo apt-get -qqq update
make libc6install
make -j uasan-test-zstd32 V=1
# Note : external libraries must be turned off when using MSAN tests,
# because they are not msan-instrumented,
# so any data coming from these libraries is always considered "uninitialized"
gcc-8-asan-ubsan-fuzz:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: gcc-8 + ASan + UBSan + Fuzz Test
# See https://askubuntu.com/a/1428822
run: |
echo "deb [arch=amd64] http://archive.ubuntu.com/ubuntu focal main universe" | sudo tee -a /etc/apt/sources.list
sudo apt-get -qqq update
make gcc8install
CC=gcc-8 FUZZER_FLAGS="--long-tests" make clean uasan-fuzztest
clang-asan-ubsan-fuzz:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: clang + ASan + UBSan + Fuzz Test
run: CC=clang FUZZER_FLAGS="--long-tests" make clean uasan-fuzztest
gcc-asan-ubsan-fuzz32:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: ASan + UBSan + Fuzz Test 32bit
run: |
sudo apt-get -qqq update
make libc6install
CFLAGS="-O3 -m32" FUZZER_FLAGS="--long-tests" make uasan-fuzztest
clang-asan-ubsan-fuzz32:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: clang + ASan + UBSan + Fuzz Test 32bit
run: |
sudo apt-get -qqq update
make libc6install
CC=clang CFLAGS="-O3 -m32" FUZZER_FLAGS="--long-tests" make uasan-fuzztest
asan-ubsan-regression:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: ASan + UBSan + Regression Test
run: make -j uasanregressiontest
clang-ubsan-regression:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: clang + ASan + UBSan + Regression Test
run: CC=clang make -j uasanregressiontest
msan-regression:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: MSan + Regression Test
run: make -j msanregressiontest
clang-msan-fuzz-unoptimized:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: clang + MSan + Fuzz Test
run: |
sudo apt-get -qqq update
sudo apt-get install clang
CC=clang MOREFLAGS="-O0" make clean msan-fuzztest
clang-msan-fuzz:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: clang + MSan + Fuzz Test
run: |
sudo apt-get -qqq update
sudo apt-get install clang
CC=clang FUZZER_FLAGS="--long-tests" make clean msan-fuzztest
# lasts ~24mn
clang-msan-testzstd:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: clang + MSan + Test Zstd
run: |
sudo apt-get update
sudo apt-get install clang
CC=clang make msan-test-zstd HAVE_ZLIB=0 HAVE_LZ4=0 HAVE_LZMA=0 V=1
armfuzz:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Qemu ARM emulation + Fuzz Test
run: |
sudo apt-get -qqq update
make arminstall
make armfuzz
valgrind-fuzz-test:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: valgrind + fuzz test stack mode # ~ 7mn
shell: 'script -q -e -c "bash {0}"'
run: |
sudo apt-get -qqq update
make valgrindinstall
make -C tests test-valgrind
make clean
make -C tests test-fuzzer-stackmode
mingw-long-test:
runs-on: windows-latest
defaults:
run:
shell: msys2 {0}
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- uses: msys2/setup-msys2@5beef6d11f48bba68b9eb503e3adc60b23c0cc36 # tag=v2
with:
msystem: MINGW64
install: make
update: true
# Based on https://ariya.io/2020/07/on-github-actions-with-msys2
- name: install mingw gcc
run: pacman --noconfirm -S gcc
- name: MINGW64 gcc fuzztest
run: |
export CC="gcc"
export CXX="g++"
export FUZZERTEST="-T2mn"
export ZSTREAM_TESTTIME="-T2mn"
echo "Testing $CC $CXX MINGW64"
make -v
$CC --version
$CXX --version
make -C tests fuzztest
# lasts ~20mn
oss-fuzz:
runs-on: ubuntu-latest
strategy:
fail-fast: false
matrix:
sanitizer: [address, undefined, memory]
steps:
- name: Build Fuzzers (${{ matrix.sanitizer }})
id: build
uses: google/oss-fuzz/infra/cifuzz/actions/build_fuzzers@master
with:
oss-fuzz-project-name: 'zstd'
dry-run: false
sanitizer: ${{ matrix.sanitizer }}
- name: Run Fuzzers (${{ matrix.sanitizer }})
uses: google/oss-fuzz/infra/cifuzz/actions/run_fuzzers@master
with:
oss-fuzz-project-name: 'zstd'
fuzz-seconds: 600
dry-run: false
sanitizer: ${{ matrix.sanitizer }}
- name: Upload Crash
uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # tag=v3.1.2
if: failure() && steps.build.outcome == 'success'
with:
name: ${{ matrix.sanitizer }}-artifacts
path: ./out/artifacts

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@ -0,0 +1,624 @@
name: dev-short-tests
# Faster tests: mostly build tests, along with some other
# misc tests
concurrency:
group: fast-${{ github.ref }}
cancel-in-progress: true
on:
pull_request:
branches: [ dev, release, actionsTest ]
permissions: read-all
jobs:
linux-kernel:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: linux kernel, library + build + test
run: make -C contrib/linux-kernel test CFLAGS="-Werror -Wunused-const-variable -Wunused-but-set-variable"
benchmarking:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: make benchmarking
run: make benchmarking
check-32bit: # designed to catch https://github.com/facebook/zstd/issues/2428
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: make check on 32-bit
run: |
sudo apt update
APT_PACKAGES="gcc-multilib" make apt-install
CFLAGS="-m32 -O1 -fstack-protector" make check V=1
check-x32:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: make check on x32 ABI # https://en.wikipedia.org/wiki/X32_ABI
env:
CHECK_CONSTRAINED_MEM: true
run: |
sudo apt update
APT_PACKAGES="gcc-multilib" make apt-install
CFLAGS="-mx32 -O1 -fstack-protector" make check V=1
build-c89:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: ensure zstd can be build with c89/c90 compilers (+ long long support + variadic macros)
run: |
make c89build V=1
build-zstd-dll:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: build zstd bin against a dynamic lib (debuglevel for more dependencies)
run: |
make -C lib lib-mt-release
DEBUGLEVEL=2 make -C programs zstd-dll
gcc-7-libzstd:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: gcc-7 + libzstdmt compilation
# See https://askubuntu.com/a/1428822
run: |
echo "deb [arch=amd64] http://archive.ubuntu.com/ubuntu focal main universe" | sudo tee -a /etc/apt/sources.list
sudo apt-get -qqq update
make gcc7install
CC=gcc-7 CFLAGS=-Werror make -j all
make clean
LDFLAGS=-Wl,--no-undefined make -C lib libzstd-mt
# candidate test (to check) : underlink test
# LDFLAGS=-Wl,--no-undefined : will make the linker fail if dll is underlinked
cmake-build-and-test-check:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: cmake build and test check
run: |
FUZZERTEST=-T1mn ZSTREAM_TESTTIME=-T1mn make cmakebuild
cp -r ./ "../zstd source"
cd "../zstd source"
FUZZERTEST=-T1mn ZSTREAM_TESTTIME=-T1mn make cmakebuild
cpp-gnu90-c99-compatibility:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: C++, gnu90 and c99 compatibility
run: |
make cxxtest
make clean
make gnu90build
make clean
make c99build
make clean
make travis-install # just ensures `make install` works
mingw-cross-compilation:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: mingw cross-compilation
run: |
# sudo update-alternatives --set x86_64-w64-mingw32-g++ /usr/bin/x86_64-w64-mingw32-g++-posix; (doesn't work)
sudo apt-get -qqq update
sudo apt-get install gcc-mingw-w64
CC=x86_64-w64-mingw32-gcc CXX=x86_64-w64-mingw32-g++ CFLAGS="-Werror -O1" make zstd
armbuild:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: ARM Build Test
run: |
sudo apt-get -qqq update
make arminstall
make armbuild
bourne-shell:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Bourne shell compatibility (shellcheck)
run: |
wget https://github.com/koalaman/shellcheck/releases/download/v0.7.1/shellcheck-v0.7.1.linux.x86_64.tar.xz
tar -xf shellcheck-v0.7.1.linux.x86_64.tar.xz
shellcheck-v0.7.1/shellcheck --shell=sh --severity=warning --exclude=SC2010 tests/playTests.sh
zlib-wrapper:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: zlib wrapper test
run: |
sudo apt-get -qqq update
make valgrindinstall
make -C zlibWrapper test
make -C zlibWrapper test-valgrind
lz4-threadpool-libs:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: LZ4, thread pool, and libs build testslib wrapper test
run: |
make lz4install
make -C tests test-lz4
make check < /dev/null | tee # mess with lz4 console detection
make clean
make -C tests test-pool
make clean
bash tests/libzstd_builds.sh
gcc-make-tests-32bit:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Make all, 32bit mode
run: |
sudo apt-get -qqq update
make libc6install
CFLAGS="-Werror -m32" make -j all32
gcc-8-make:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: gcc-8 build
# See https://askubuntu.com/a/1428822
run: |
echo "deb [arch=amd64] http://archive.ubuntu.com/ubuntu focal main universe" | sudo tee -a /etc/apt/sources.list
sudo apt-get -qqq update
make gcc8install
CC=gcc-8 CFLAGS="-Werror" make -j all
make-external-compressors:
strategy:
matrix:
include:
- name: "no external compressors"
flags: "HAVE_ZLIB=0 HAVE_LZ4=0 HAVE_LZMA=0"
- name: "only zlib"
flags: "HAVE_ZLIB=1 HAVE_LZ4=0 HAVE_LZMA=0"
- name: "only lz4"
flags: "HAVE_ZLIB=0 HAVE_LZ4=1 HAVE_LZMA=0"
- name: "only lzma"
flags: "HAVE_ZLIB=0 HAVE_LZ4=0 HAVE_LZMA=1"
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Build with ${{matrix.name}}
run: ${{matrix.flags}} make zstd
implicit-fall-through:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: -Wimplicit-fallthrough build
run: |
make clean
CC=gcc MOREFLAGS="-Werror -Wimplicit-fallthrough=2 -O0" make -C lib -j libzstd.a ZSTD_LEGACY_SUPPORT=0
make clean
CC=clang MOREFLAGS="-Werror -Wimplicit-fallthrough -O0" make -C lib -j libzstd.a ZSTD_LEGACY_SUPPORT=0
meson-linux:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Install packages
run: |
sudo apt-get update
sudo apt-get -y install build-essential python3-pip ninja-build liblz4-dev
pip install --pre meson
- name: Build with Meson
run: |
meson setup \
--buildtype=debugoptimized \
-Db_lundef=false \
-Dauto_features=enabled \
-Dbin_programs=true \
-Dbin_tests=true \
-Dbin_contrib=true \
-Ddefault_library=both \
build/meson builddir
ninja -C builddir/
meson test -C builddir/ --print-errorlogs
meson install -C builddir --destdir staging/
meson-windows:
runs-on: windows-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Install packages
run: pip install --pre meson
- name: Initialize the MSVC dev command prompt
uses: ilammy/msvc-dev-cmd@cec98b9d092141f74527d0afa6feb2af698cfe89
- name: Configure with Meson
run: |
meson setup build/meson/ builddir -Dbin_tests=true -Dbin_programs=true -Dbin_contrib=true
- name: Build with Meson
run: |
ninja -C builddir/
- name: Test with Meson
run: |
meson test -C builddir/ --print-errorlogs
- name: Install with Meson
run: |
meson install -C builddir --destdir staging/
cmake-visual-2022:
strategy:
matrix:
include:
- generator: "Visual Studio 17 2022"
flags: "-A x64"
- generator: "Visual Studio 17 2022"
flags: "-A Win32"
- generator: "MinGW Makefiles"
- generator: "Visual Studio 17 2022"
flags: "-T ClangCL"
runs-on: windows-2022
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Add MSBuild to PATH
uses: microsoft/setup-msbuild@1ff57057b5cfdc39105cd07a01d78e9b0ea0c14c # tag=v1.3
- name: Build
working-directory: ${{env.GITHUB_WORKSPACE}}
run: |
cd build\cmake
mkdir build
cd build
cmake.exe -G "${{matrix.generator}}" ${{matrix.flags}} ..
cmake.exe --build .
msbuild-visual-studio:
strategy:
fail-fast: false # 'false' means Don't stop matrix workflows even if some matrix failed.
matrix:
include: [
{ name: "VS 2022 x64 Debug", platform: x64, configuration: Debug, toolset: v143, runner: "windows-2022", arch: "" },
{ name: "VS 2022 Win32 Debug", platform: Win32, configuration: Debug, toolset: v143, runner: "windows-2022", arch: "" },
{ name: "VS 2022 x64 Release", platform: x64, configuration: Release, toolset: v143, runner: "windows-2022", arch: ""},
{ name: "VS 2022 Win32 Release", platform: Win32, configuration: Release, toolset: v143, runner: "windows-2022", arch: ""},
{ name: "VS 2019 x64 Release", platform: Win32, configuration: Release, toolset: v142, runner: "windows-2019", arch: ""},
{ name: "VS 2019 Win32 Release", platform: x64, configuration: Release, toolset: v142, runner: "windows-2019", arch: ""},
{ name: "VS 2022 x64 Release AVX2", platform: x64, configuration: Release, toolset: v143, runner: "windows-2022", arch: "AdvancedVectorExtensions2" },
]
runs-on: ${{matrix.runner}}
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Add MSBuild to PATH
uses: microsoft/setup-msbuild@1ff57057b5cfdc39105cd07a01d78e9b0ea0c14c # tag=v1.3
- name: Build ${{matrix.name}}
working-directory: ${{env.GITHUB_WORKSPACE}}
# See https://docs.microsoft.com/visualstudio/msbuild/msbuild-command-line-reference
if: ${{ matrix.arch == '' }}
run: >
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=${{matrix.toolset}}
/t:Clean,Build /p:Platform=${{matrix.platform}} /p:Configuration=${{matrix.configuration}} /warnaserror
- name: Build ${{matrix.name}}
working-directory: ${{env.GITHUB_WORKSPACE}}
# See https://docs.microsoft.com/visualstudio/msbuild/msbuild-command-line-reference
if: ${{ matrix.arch != '' }}
run: >
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=${{matrix.toolset}}
/t:Clean,Build /p:Platform=${{matrix.platform}} /p:Configuration=${{matrix.configuration}} /warnaserror
/p:InstructionSet=${{matrix.arch}}
# This tests that we don't accidentally grow the size too much.
# If the size grows intentionally, you can raise these numbers.
# But we do need to think about binary size, since it is a concern.
libzstd-size:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: libzstd size test
run: |
make clean && make -j -C lib libzstd && ./tests/check_size.py lib/libzstd.so 1100000
make clean && make -j -C lib libzstd ZSTD_LIB_COMPRESSION=0 ZSTD_LIB_DICTBUILDER=0 && ./tests/check_size.py lib/libzstd.so 400000
make clean && make -j -C lib libzstd ZSTD_LIB_MINIFY=1 && ./tests/check_size.py lib/libzstd.so 300000
make clean && make -j -C lib libzstd ZSTD_LIB_MINIFY=1 ZSTD_LIB_COMPRESSION=0 ZSTD_LIB_DICTBUILDER=0 && ./tests/check_size.py lib/libzstd.so 80000
minimal-decompressor-macros:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: minimal decompressor macros
run: |
make clean && make -j all ZSTD_LIB_MINIFY=1 MOREFLAGS="-Werror"
make clean && make check ZSTD_LIB_MINIFY=1 MOREFLAGS="-Werror"
make clean && make -j all MOREFLAGS="-Werror -DHUF_FORCE_DECOMPRESS_X1 -DZSTD_FORCE_DECOMPRESS_SEQUENCES_SHORT"
make clean && make check MOREFLAGS="-Werror -DHUF_FORCE_DECOMPRESS_X1 -DZSTD_FORCE_DECOMPRESS_SEQUENCES_SHORT"
make clean && make -j all MOREFLAGS="-Werror -DHUF_FORCE_DECOMPRESS_X2 -DZSTD_FORCE_DECOMPRESS_SEQUENCES_LONG"
make clean && make check MOREFLAGS="-Werror -DHUF_FORCE_DECOMPRESS_X2 -DZSTD_FORCE_DECOMPRESS_SEQUENCES_LONG"
make clean && make -j all MOREFLAGS="-Werror -DZSTD_NO_INLINE -DZSTD_STRIP_ERROR_STRINGS"
make clean && make check MOREFLAGS="-Werror -DZSTD_NO_INLINE -DZSTD_STRIP_ERROR_STRINGS"
dynamic-bmi2:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: dynamic bmi2 tests
run: |
make clean && make -j check MOREFLAGS="-O0 -Werror -mbmi2"
make clean && make -j check MOREFLAGS="-O0 -Werror -DDYNAMIC_BMI2=1"
make clean && make -j check MOREFLAGS="-O0 -Werror -DDYNAMIC_BMI2=1 -mbmi2"
make clean && make -j check MOREFLAGS="-O0 -Werror -DDYNAMIC_BMI2=0"
make clean && make -j check MOREFLAGS="-O0 -Werror -DDYNAMIC_BMI2=0 -mbmi2"
test-variants:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: make all variants & validate
run: |
make -j -C programs allVariants MOREFLAGS=-O0
./tests/test-variants.sh
qemu-consistency:
name: QEMU ${{ matrix.name }}
runs-on: ubuntu-20.04
strategy:
fail-fast: false # 'false' means Don't stop matrix workflows even if some matrix failed.
matrix:
include: [
{ name: ARM, xcc_pkg: gcc-arm-linux-gnueabi, xcc: arm-linux-gnueabi-gcc, xemu_pkg: qemu-system-arm, xemu: qemu-arm-static },
{ name: ARM64, xcc_pkg: gcc-aarch64-linux-gnu, xcc: aarch64-linux-gnu-gcc, xemu_pkg: qemu-system-arm, xemu: qemu-aarch64-static },
{ name: PPC, xcc_pkg: gcc-powerpc-linux-gnu, xcc: powerpc-linux-gnu-gcc, xemu_pkg: qemu-system-ppc, xemu: qemu-ppc-static },
{ name: PPC64LE, xcc_pkg: gcc-powerpc64le-linux-gnu, xcc: powerpc64le-linux-gnu-gcc, xemu_pkg: qemu-system-ppc, xemu: qemu-ppc64le-static },
{ name: S390X, xcc_pkg: gcc-s390x-linux-gnu, xcc: s390x-linux-gnu-gcc, xemu_pkg: qemu-system-s390x, xemu: qemu-s390x-static },
{ name: MIPS, xcc_pkg: gcc-mips-linux-gnu, xcc: mips-linux-gnu-gcc, xemu_pkg: qemu-system-mips, xemu: qemu-mips-static },
{ name: M68K, xcc_pkg: gcc-m68k-linux-gnu, xcc: m68k-linux-gnu-gcc, xemu_pkg: qemu-system-m68k, xemu: qemu-m68k-static },
]
env: # Set environment variables
XCC: ${{ matrix.xcc }}
XEMU: ${{ matrix.xemu }}
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: apt update & install
run: |
sudo apt-get update
sudo apt-get install gcc-multilib g++-multilib qemu-utils qemu-user-static
sudo apt-get install ${{ matrix.xcc_pkg }} ${{ matrix.xemu_pkg }}
- name: Environment info
run: |
echo && which $XCC
echo && $XCC --version
echo && $XCC -v # Show built-in specs
echo && which $XEMU
echo && $XEMU --version
- name: ARM
if: ${{ matrix.name == 'ARM' }}
run: |
LDFLAGS="-static" CC=$XCC QEMU_SYS=$XEMU make clean check
- name: ARM64
if: ${{ matrix.name == 'ARM64' }}
run: |
LDFLAGS="-static" CC=$XCC QEMU_SYS=$XEMU make clean check
- name: PPC
if: ${{ matrix.name == 'PPC' }}
run: |
LDFLAGS="-static" CC=$XCC QEMU_SYS=$XEMU make clean check
- name: PPC64LE
if: ${{ matrix.name == 'PPC64LE' }}
run: |
LDFLAGS="-static" CC=$XCC QEMU_SYS=$XEMU make clean check
- name: S390X
if: ${{ matrix.name == 'S390X' }}
run: |
LDFLAGS="-static" CC=$XCC QEMU_SYS=$XEMU make clean check
- name: MIPS
if: ${{ matrix.name == 'MIPS' }}
run: |
LDFLAGS="-static" CC=$XCC QEMU_SYS=$XEMU make clean check
- name: M68K
if: ${{ matrix.name == 'M68K' }}
run: |
LDFLAGS="-static" CC=$XCC QEMU_SYS=$XEMU make clean check
mingw-short-test:
runs-on: windows-latest
strategy:
fail-fast: false # 'false' means Don't stop matrix workflows even if some matrix failed.
matrix:
include: [
{ compiler: gcc, msystem: MINGW32, cflags: "-Werror"},
{ compiler: gcc, msystem: MINGW64, cflags: "-Werror"},
{ compiler: clang, msystem: MINGW64, cflags: "--target=x86_64-w64-mingw32 -Werror -Wconversion -Wno-sign-conversion -Wno-unused-command-line-argument"},
]
defaults:
run:
shell: msys2 {0}
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- uses: msys2/setup-msys2@5beef6d11f48bba68b9eb503e3adc60b23c0cc36 # tag=v2
with:
msystem: ${{ matrix.msystem }}
install: make diffutils
update: true
# Based on https://ariya.io/2020/07/on-github-actions-with-msys2
- name: install mingw gcc i686
if: ${{ (matrix.msystem == 'MINGW32') && (matrix.compiler == 'gcc') }}
run: pacman --noconfirm -S mingw-w64-i686-gcc
- name: install mingw gcc x86_64
if: ${{ (matrix.msystem == 'MINGW64') && (matrix.compiler == 'gcc') }}
run: pacman --noconfirm -S mingw-w64-x86_64-gcc
- name: install mingw clang i686
if: ${{ (matrix.msystem == 'MINGW32') && (matrix.compiler == 'clang') }}
run: pacman --noconfirm -S mingw-w64-i686-clang
- name: install mingw clang x86_64
if: ${{ (matrix.msystem == 'MINGW64') && (matrix.compiler == 'clang') }}
run: pacman --noconfirm -S mingw-w64-x86_64-clang
- name: run mingw tests
run: |
make -v
export CC=${{ matrix.compiler }}
$CC --version
CFLAGS="${{ matrix.cflags }}" make -j allzstd
echo "Testing $CC ${{ matrix.msystem }}"
make clean
MSYS="" make check
visual-runtime-tests:
runs-on: windows-latest
strategy:
matrix:
platform: [x64, Win32]
configuration: [Release]
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Add MSBuild to PATH
uses: microsoft/setup-msbuild@1ff57057b5cfdc39105cd07a01d78e9b0ea0c14c # tag=v1.3
- name: Build and run tests
working-directory: ${{env.GITHUB_WORKSPACE}}
env:
ZSTD_BIN: ./zstd.exe
DATAGEN_BIN: ./datagen.exe
# See https://docs.microsoft.com/visualstudio/msbuild/msbuild-command-line-reference
run: |
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v142 /t:Clean,Build /p:Platform=${{matrix.platform}} /p:Configuration=${{matrix.configuration}}
COPY build\VS2010\bin\${{matrix.platform}}_${{matrix.configuration}}\*.exe tests\
CD tests
sh -e playTests.sh
.\fuzzer.exe -T2m
# Following instructions at: https://github.com/marketplace/actions/install-cygwin-action
cygwin-tests:
runs-on: windows-latest
steps:
- run: git config --global core.autocrlf input
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- uses: cygwin/cygwin-install-action@f5e0f048310c425e84bc789f493a828c6dc80a25 # tag=master
with:
platform: x86_64
packages: >-
autoconf,
automake,
gcc-g++,
make,
mingw64-x86_64-gcc-g++,
patch,
perl
- name: cygwin tests
shell: C:\cygwin\bin\bash.exe --noprofile --norc -eo pipefail '{0}'
run: >-
export PATH=/usr/bin:$(cygpath ${SYSTEMROOT})/system32 &&
export CFLAGS="-Werror -O1" &&
ls &&
make -j allzstd &&
make -C tests fuzzer &&
./tests/fuzzer.exe -v -T1m
intel-cet-compatibility:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Build Zstd
run: |
make -j zstd V=1
readelf -n zstd
- name: Get Intel SDE
run: |
curl -LO https://downloadmirror.intel.com/684899/sde-external-9.0.0-2021-11-07-lin.tar.xz
tar xJvf sde-external-9.0.0-2021-11-07-lin.tar.xz
- name: Configure Permissions
run: |
echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope
- name: Run Under SDE
run: |
sde-external-9.0.0-2021-11-07-lin/sde -cet -cet-raise 0 -cet-endbr-exe -cet-stderr -cet-abort -- ./zstd -b3
pkg-config:
runs-on: ubuntu-latest
container:
image: debian:testing
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Install dependencies
run: |
apt -y update
apt -y install --no-install-recommends gcc libc6-dev make pkg-config
- name: Build and install
run: make -C lib install
- name: Test pkg-config
run: |
cc -Wall -Wextra -Wpedantic -Werror -o simple examples/simple_compression.c $(pkg-config --cflags --libs libzstd)
./simple LICENSE
versions-compatibility:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Versions Compatibility Test
run: |
make -C tests versionsTest
clangbuild:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: make clangbuild
run: |
make clangbuild
clang-pgo:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Build PGO Zstd with Clang
env:
CC: clang-14
LLVM_PROFDATA: llvm-profdata-14
run: |
make -C programs zstd-pgo
./programs/zstd -b
gcc-pgo:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Build PGO Zstd with GCC
env:
CC: gcc
run: |
make -C programs zstd-pgo
./programs/zstd -b
# For reference : icc tests
# icc tests are currently failing on Github Actions, likely to issues during installation stage
# To be fixed later
#
# icc:
# name: icc-check
# runs-on: ubuntu-latest
# steps:
# - name: install icc
# run: |
# export DEBIAN_FRONTEND=noninteractive
# sudo apt-get -qqq update
# sudo apt-get install -y wget build-essential pkg-config cmake ca-certificates gnupg
# sudo wget https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB
# sudo apt-key add GPG-PUB-KEY-INTEL-SW-PRODUCTS-2023.PUB
# sudo add-apt-repository "deb https://apt.repos.intel.com/oneapi all main"
# sudo apt-get update
# sudo apt-get install -y intel-basekit intel-hpckit
# - uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
# - name: make check
# run: |
# make CC=/opt/intel/oneapi/compiler/latest/linux/bin/intel64/icc check

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@ -0,0 +1,73 @@
name: publish-release-artifacts
on:
release:
types:
- published
permissions: read-all
jobs:
publish-release-artifacts:
permissions:
contents: write # to fetch code and upload artifacts
runs-on: ubuntu-latest
if: startsWith(github.ref, 'refs/tags/')
steps:
- name: Checkout
uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- name: Archive
env:
RELEASE_SIGNING_KEY: ${{ secrets.RELEASE_SIGNING_KEY }}
RELEASE_SIGNING_KEY_PASSPHRASE: ${{ secrets.RELEASE_SIGNING_KEY_PASSPHRASE }}
run: |
# compute file name
export TAG="$(echo "$GITHUB_REF" | sed -n 's_^refs/tags/__p')"
if [ -z "$TAG" ]; then
echo "action must be run on a tag. GITHUB_REF is not a tag: $GITHUB_REF"
exit 1
fi
# Attempt to extract "1.2.3" from "v1.2.3" to maintain artifact name backwards compat.
# Otherwise, degrade to using full tag.
export VERSION="$(echo "$TAG" | sed 's_^v\([0-9]\+\.[0-9]\+\.[0-9]\+\)$_\1_')"
export ZSTD_VERSION="zstd-$VERSION"
# archive
git archive $TAG \
--prefix $ZSTD_VERSION/ \
--format tar \
-o $ZSTD_VERSION.tar
# Do the rest of the work in a sub-dir so we can glob everything we want to publish.
mkdir artifacts/
mv $ZSTD_VERSION.tar artifacts/
cd artifacts/
# compress
zstd -k -19 $ZSTD_VERSION.tar
gzip -k -9 $ZSTD_VERSION.tar
# we only publish the compressed tarballs
rm $ZSTD_VERSION.tar
# hash
sha256sum $ZSTD_VERSION.tar.zst > $ZSTD_VERSION.tar.zst.sha256
sha256sum $ZSTD_VERSION.tar.gz > $ZSTD_VERSION.tar.gz.sha256
# sign
if [ -n "$RELEASE_SIGNING_KEY" ]; then
export GPG_BATCH_OPTS="--batch --no-use-agent --pinentry-mode loopback --no-tty --yes"
echo "$RELEASE_SIGNING_KEY" | gpg $GPG_BATCH_OPTS --import
gpg $GPG_BATCH_OPTS --armor --sign --sign-with signing@zstd.net --detach-sig --passphrase "$RELEASE_SIGNING_KEY_PASSPHRASE" --output $ZSTD_VERSION.tar.zst.sig $ZSTD_VERSION.tar.zst
gpg $GPG_BATCH_OPTS --armor --sign --sign-with signing@zstd.net --detach-sig --passphrase "$RELEASE_SIGNING_KEY_PASSPHRASE" --output $ZSTD_VERSION.tar.gz.sig $ZSTD_VERSION.tar.gz
fi
- name: Publish
uses: skx/github-action-publish-binaries@b9ca5643b2f1d7371a6cba7f35333f1461bbc703 # tag=release-2.0
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
with:
args: artifacts/*

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name: Scorecards supply-chain security
on:
# Only the default branch is supported.
branch_protection_rule:
schedule:
- cron: '22 21 * * 2'
push:
# TODO: Add release branch when supported?
branches: [ "dev" ]
# Declare default permissions as read only.
permissions: read-all
jobs:
analysis:
name: Scorecards analysis
if: github.repository == 'facebook/zstd'
runs-on: ubuntu-latest
permissions:
# Needed to upload the results to code-scanning dashboard.
security-events: write
# Used to receive a badge.
id-token: write
# Needs for private repositories.
contents: read
actions: read
steps:
- name: "Checkout code"
uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
with:
persist-credentials: false
- name: "Run analysis"
uses: ossf/scorecard-action@e38b1902ae4f44df626f11ba0734b14fb91f8f86 # tag=v2.1.2
with:
results_file: results.sarif
results_format: sarif
# (Optional) Read-only PAT token. Uncomment the `repo_token` line below if:
# - you want to enable the Branch-Protection check on a *public* repository, or
# - you are installing Scorecards on a *private* repository
# To create the PAT, follow the steps in https://github.com/ossf/scorecard-action#authentication-with-pat.
# repo_token: ${{ secrets.SCORECARD_READ_TOKEN }}
# Publish the results for public repositories to enable scorecard badges. For more details, see
# https://github.com/ossf/scorecard-action#publishing-results.
# For private repositories, `publish_results` will automatically be set to `false`, regardless
# of the value entered here.
publish_results: true
# Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
# format to the repository Actions tab.
- name: "Upload artifact"
uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # tag=v3.1.2
with:
name: SARIF file
path: results.sarif
retention-days: 5
# Upload the results to GitHub's code scanning dashboard.
- name: "Upload to code-scanning"
uses: github/codeql-action/upload-sarif@67a35a08586135a9573f4327e904ecbf517a882d # tag=v2.2.8
with:
sarif_file: results.sarif

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name: windows-artifacts
on:
push:
branches: [ test_artifacts, win_artifacts ]
release:
types:
- published
permissions: read-all
jobs:
windows-64-artifacts:
# see https://ariya.io/2020/07/on-github-actions-with-msys2
runs-on: windows-latest
defaults:
run:
shell: msys2 {0}
steps:
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3 # tag=v3
- uses: msys2/setup-msys2@5beef6d11f48bba68b9eb503e3adc60b23c0cc36 # tag=v2
with:
msystem: MINGW64
install: make zlib git p7zip mingw-w64-x86_64-gcc
update: true
- name: display versions
run: |
make -v
cc -v
- name: Building zlib to static link
run: |
git clone --depth 1 --branch v1.2.11 https://github.com/madler/zlib
make -C zlib -f win32/Makefile.gcc libz.a
- name: Building zstd programs in 64-bit mode
run: |
CPPFLAGS=-I../zlib LDFLAGS=../zlib/libz.a make -j allzstd MOREFLAGS=-static V=1
- name: Create artifacts
run: |
./lib/dll/example/build_package.bat
mv bin/ zstd-${{ github.ref_name }}-win64/
7z a -tzip -mx9 zstd-${{ github.ref_name }}-win64.zip zstd-${{ github.ref_name }}-win64/
cd ..
- name: Publish zstd-$VERSION-win64.zip
uses: actions/upload-artifact@0b7f8abb1508181956e8e162db84b466c27e18ce # tag=v3
with:
path: ${{ github.workspace }}/zstd-${{ github.ref_name }}-win64.zip
name: zstd-${{ github.ref_name }}-win64.zip

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# Object files
*.o
*.ko
*.dSYM
# Libraries
*.lib
*.a
# Shared objects (inc. Windows DLLs)
*.dll
*.so
*.so.*
*.dylib
# Executables
/zstd
zstdmt
*.exe
*.out
*.app
# Test artefacts
tmp*
*.zst
*.zstd
dictionary.
dictionary
NUL
# Build artefacts
contrib/linux-kernel/linux/
projects/
bin/
.buckd/
buck-out/
build-*
*.gcda
# Other files
.directory
_codelite/
_zstdbench/
.clang_complete
*.idea
*.swp
.DS_Store
googletest/
*.d
*.vscode
*.code-workspace
compile_commands.json
.clangd
perf.data
perf.data.old

128
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# Travis CI is used to test platforms that github-actions currently doesn't support
# without either self-hosting or some finnicky work-around. Also, some tests
# are troublesome to migrate since GH Actions runs tests not in a tty.
language: c
git:
depth: 1
branches:
only:
- dev
- release
- master
- travisTest
addons:
apt:
update: true
env:
global:
- FUZZERTEST=-T1mn
ZSTREAM_TESTTIME=-T1mn
DECODECORPUS_TESTTIME=-T1mn
matrix:
fast_finish: true
include:
- name: S390X (big endian) + Fuzz test
dist: trusty
arch: s390x
script:
- FUZZER_FLAGS=--no-big-tests make -C tests fuzztest
- name: S390X (big endian) + Fuzz test + no intrinsics
dist: trusty
arch: s390x
script:
- MOREFLAGS="-DZSTD_NO_INTRINSICS" FUZZER_FLAGS=--no-big-tests make -C tests fuzztest
- name: arm64 # ~2.5 mn
os: linux
arch: arm64
script:
- make check
- name: arm64fuzz
os: linux
arch: arm64
script:
- make -C tests fuzztest
# TODO: migrate to GH Actions once newest clang staticanalyze warnings are fixed
- name: static analyzer scanbuild # ~8mn
dist: trusty # note : it's important to pin down a version of static analyzer, since different versions report different false positives
script:
- make staticAnalyze
# GH actions can't run this command on OS-X, non-tty issues
- name: OS-X make all lib
os: osx
script:
- make -C lib all
# Introduced to check compat with old toolchains, to prevent e.g. #1872
- name: ARM Build Test (on Trusty)
dist: trusty
script:
- make arminstall
- make armbuild
# check release number (release/new tag only)
- name: Tag-Specific Test
if: tag =~ ^v[0-9]\.[0-9]
script:
- make -C tests checkTag
- tests/checkTag "$TRAVIS_BRANCH"
- name: PPC64LE + Fuzz test # ~13mn
arch: ppc64le
env:
- FUZZER_FLAGS=--no-big-tests
- MOREFLAGS="-static"
script:
- cat /proc/cpuinfo
- make -C tests fuzztest
# This test currently fails on GA specifically, for no obvious reason
# (it works fine on travisCI, and on local test platforms).
- name: Versions Compatibility Test # ~6mn
script:
- make -C tests versionsTest
# meson dedicated test
- name: Focal (Meson + clang) # ~15mn
dist: focal
language: cpp
compiler: clang
install:
- sudo apt-get install -qq liblz4-dev valgrind tree
- |
travis_retry curl -o ~/ninja.zip -L 'https://github.com/ninja-build/ninja/releases/download/v1.9.0/ninja-linux.zip' &&
unzip ~/ninja.zip -d ~/.local/bin
- |
travis_retry curl -o ~/get-pip.py -L 'https://bootstrap.pypa.io/pip/3.6/get-pip.py' &&
python3 ~/get-pip.py --user &&
pip3 install --user meson
script:
- |
meson setup \
--buildtype=debugoptimized \
-Db_lundef=false \
-Dauto_features=enabled \
-Dbin_programs=true \
-Dbin_tests=true \
-Dbin_contrib=true \
-Ddefault_library=both \
build/meson builddir
- pushd builddir
- ninja
- meson test --verbose --no-rebuild
- DESTDIR=./staging ninja install
- tree ./staging
after_failure:
- cat "$TRAVIS_BUILD_DIR"/builddir/meson-logs/testlog.txt
allow_failures:
- env: ALLOW_FAILURES=true

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v1.5.5 (Apr 2023)
fix: fix rare corruption bug affecting the high compression mode, reported by @danlark1 (#3517, @terrelln)
perf: improve mid-level compression speed (#3529, #3533, #3543, @yoniko and #3552, @terrelln)
lib: deprecated bufferless block-level API (#3534) by @terrelln
cli: mmap large dictionaries to save memory, by @daniellerozenblit
cli: improve speed of --patch-from mode (~+50%) (#3545) by @daniellerozenblit
cli: improve i/o speed (~+10%) when processing lots of small files (#3479) by @felixhandte
cli: zstd no longer crashes when requested to write into write-protected directory (#3541) by @felixhandte
cli: fix decompression into block device using -o, reported by @georgmu (#3583)
build: fix zstd CLI compiled with lzma support but not zlib support (#3494) by @Hello71
build: fix cmake does no longer require 3.18 as minimum version (#3510) by @kou
build: fix MSVC+ClangCL linking issue (#3569) by @tru
build: fix zstd-dll, version of zstd CLI that links to the dynamic library (#3496) by @yoniko
build: fix MSVC warnings (#3495) by @embg
doc: updated zstd specification to clarify corner cases, by @Cyan4973
doc: document how to create fat binaries for macos (#3568) by @rickmark
misc: improve seekable format ingestion speed (~+100%) for very small chunk sizes (#3544) by @Cyan4973
misc: tests/fullbench can benchmark multiple files (#3516) by @dloidolt
v1.5.4 (Feb 2023)
perf: +20% faster huffman decompression for targets that can't compile x64 assembly (#3449, @terrelln)
perf: up to +10% faster streaming compression at levels 1-2 (#3114, @embg)
perf: +4-13% for levels 5-12 by optimizing function generation (#3295, @terrelln)
pref: +3-11% compression speed for `arm` target (#3199, #3164, #3145, #3141, #3138, @JunHe77 and #3139, #3160, @danlark1)
perf: +5-30% faster dictionary compression at levels 1-4 (#3086, #3114, #3152, @embg)
perf: +10-20% cold dict compression speed by prefetching CDict tables (#3177, @embg)
perf: +1% faster compression by removing a branch in ZSTD_fast_noDict (#3129, @felixhandte)
perf: Small compression ratio improvements in high compression mode (#2983, #3391, @Cyan4973 and #3285, #3302, @daniellerozenblit)
perf: small speed improvement by better detecting `STATIC_BMI2` for `clang` (#3080, @TocarIP)
perf: Improved streaming performance when `ZSTD_c_stableInBuffer` is set (#2974, @Cyan4973)
cli: Asynchronous I/O for improved cli speed (#2975, #2985, #3021, #3022, @yoniko)
cli: Change `zstdless` behavior to align with `zless` (#2909, @binhdvo)
cli: Keep original file if `-c` or `--stdout` is given (#3052, @dirkmueller)
cli: Keep original files when result is concatenated into a single output with `-o` (#3450, @Cyan4973)
cli: Preserve Permissions and Ownership of regular files (#3432, @felixhandte)
cli: Print zlib/lz4/lzma library versions with `-vv` (#3030, @terrelln)
cli: Print checksum value for single frame files with `-lv` (#3332, @Cyan4973)
cli: Print `dictID` when present with `-lv` (#3184, @htnhan)
cli: when `stderr` is *not* the console, disable status updates, but preserve final summary (#3458, @Cyan4973)
cli: support `--best` and `--no-name` in `gzip` compatibility mode (#3059, @dirkmueller)
cli: support for `posix` high resolution timer `clock_gettime()`, for improved benchmark accuracy (#3423, @Cyan4973)
cli: improved help/usage (`-h`, `-H`) formatting (#3094, @dirkmueller and #3385, @jonpalmisc)
cli: Fix better handling of bogus numeric values (#3268, @ctkhanhly)
cli: Fix input consists of multiple files _and_ `stdin` (#3222, @yoniko)
cli: Fix tiny files passthrough (#3215, @cgbur)
cli: Fix for `-r` on empty directory (#3027, @brailovich)
cli: Fix empty string as argument for `--output-dir-*` (#3220, @embg)
cli: Fix decompression memory usage reported by `-vv --long` (#3042, @u1f35c, and #3232, @zengyijing)
cli: Fix infinite loop when empty input is passed to trainer (#3081, @terrelln)
cli: Fix `--adapt` doesn't work when `--no-progress` is also set (#3354, @terrelln)
api: Support for Block-Level Sequence Producer (#3333, @embg)
api: Support for in-place decompression (#3432, @terrelln)
api: New `ZSTD_CCtx_setCParams()` function, set all parameters defined in a `ZSTD_compressionParameters` structure (#3403, @Cyan4973)
api: Streaming decompression detects incorrect header ID sooner (#3175, @Cyan4973)
api: Window size resizing optimization for edge case (#3345, @daniellerozenblit)
api: More accurate error codes for busy-loop scenarios (#3413, #3455, @Cyan4973)
api: Fix limit overflow in `compressBound` and `decompressBound` (#3362, #3373, Cyan4973) reported by @nigeltao
api: Deprecate several advanced experimental functions: streaming (#3408, @embg), copy (#3196, @mileshu)
bug: Fix corruption that rarely occurs in 32-bit mode with wlog=25 (#3361, @terrelln)
bug: Fix for block-splitter (#3033, @Cyan4973)
bug: Fixes for Sequence Compression API (#3023, #3040, @Cyan4973)
bug: Fix leaking thread handles on Windows (#3147, @animalize)
bug: Fix timing issues with cmake/meson builds (#3166, #3167, #3170, @Cyan4973)
build: Allow user to select legacy level for cmake (#3050, @shadchin)
build: Enable legacy support by default in cmake (#3079, @niamster)
build: Meson build script improvements (#3039, #3120, #3122, #3327, #3357, @eli-schwartz and #3276, @neheb)
build: Add aarch64 to supported architectures for zstd_trace (#3054, @ooosssososos)
build: support AIX architecture (#3219, @qiongsiwu)
build: Fix `ZSTD_LIB_MINIFY` build macro, which now reduces static library size by half (#3366, @terrelln)
build: Fix Windows issues with Multithreading translation layer (#3364, #3380, @yoniko) and ARM64 target (#3320, @cwoffenden)
build: Fix `cmake` script (#3382, #3392, @terrelln and #3252 @Tachi107 and #3167 @Cyan4973)
doc: Updated man page, providing more details for `--train` mode (#3112, @Cyan4973)
doc: Add decompressor errata document (#3092, @terrelln)
misc: Enable Intel CET (#2992, #2994, @hjl-tools)
misc: Fix `contrib/` seekable format (#3058, @yhoogstrate and #3346, @daniellerozenblit)
misc: Improve speed of the one-file library generator (#3241, @wahern and #3005, @cwoffenden)
v1.5.3 (dev version, unpublished)
v1.5.2 (Jan, 2022)
perf: Regain Minimal memset()-ing During Reuse of Compression Contexts (@Cyan4973, #2969)
build: Build Zstd with `noexecstack` on All Architectures (@felixhandte, #2964)
doc: Clarify Licensing (@terrelln, #2981)
v1.5.1 (Dec, 2021)
perf: rebalanced compression levels, to better match the intended speed/level curve, by @senhuang42
perf: faster huffman decoder, using x64 assembly, by @terrelln
perf: slightly faster high speed modes (strategies fast & dfast), by @felixhandte
perf: improved binary size and faster compilation times, by @terrelln
perf: new row64 mode, used notably in level 12, by @senhuang42
perf: faster mid-level compression speed in presence of highly repetitive patterns, by @senhuang42
perf: minor compression ratio improvements for small data at high levels, by @cyan4973
perf: reduced stack usage (mostly useful for Linux Kernel), by @terrelln
perf: faster compression speed on incompressible data, by @bindhvo
perf: on-demand reduced ZSTD_DCtx state size, using build macro ZSTD_DECODER_INTERNAL_BUFFER, at a small cost of performance, by @bindhvo
build: allows hiding static symbols in the dynamic library, using build macro, by @skitt
build: support for m68k (Motorola 68000's), by @cyan4973
build: improved AIX support, by @Helflym
build: improved meson unofficial build, by @eli-schwartz
cli : custom memory limit when training dictionary (#2925), by @embg
cli : report advanced parameters information when compressing in very verbose mode (``-vv`), by @Svetlitski-FB
v1.5.0 (May 11, 2021)
api: Various functions promoted from experimental to stable API: (#2579-2581, @senhuang42)
`ZSTD_defaultCLevel()`
`ZSTD_getDictID_fromCDict()`
api: Several experimental functions have been deprecated and will emit a compiler warning (#2582, @senhuang42)
`ZSTD_compress_advanced()`
`ZSTD_compress_usingCDict_advanced()`
`ZSTD_compressBegin_advanced()`
`ZSTD_compressBegin_usingCDict_advanced()`
`ZSTD_initCStream_srcSize()`
`ZSTD_initCStream_usingDict()`
`ZSTD_initCStream_usingCDict()`
`ZSTD_initCStream_advanced()`
`ZSTD_initCStream_usingCDict_advanced()`
`ZSTD_resetCStream()`
api: ZSTDMT_NBWORKERS_MAX reduced to 64 for 32-bit environments (@Cyan4973)
perf: Significant speed improvements for middle compression levels (#2494, @senhuang42 @terrelln)
perf: Block splitter to improve compression ratio, enabled by default for high compression levels (#2447, @senhuang42)
perf: Decompression loop refactor, speed improvements on `clang` and for `--long` modes (#2614 #2630, @Cyan4973)
perf: Reduced stack usage during compression and decompression entropy stage (#2522 #2524, @terrelln)
bug: Improve setting permissions of created files (#2525, @felixhandte)
bug: Fix large dictionary non-determinism (#2607, @terrelln)
bug: Fix non-determinism test failures on Linux i686 (#2606, @terrelln)
bug: Fix various dedicated dictionary search bugs (#2540 #2586, @senhuang42 @felixhandte)
bug: Ensure `ZSTD_estimateCCtxSize*() `monotonically increases with compression level (#2538, @senhuang42)
bug: Fix --patch-from mode parameter bound bug with small files (#2637, @occivink)
bug: Fix UBSAN error in decompression (#2625, @terrelln)
bug: Fix superblock compression divide by zero bug (#2592, @senhuang42)
bug: Make the number of physical CPU cores detection more robust (#2517, @PaulBone)
doc: Improve `zdict.h` dictionary training API documentation (#2622, @terrelln)
doc: Note that public `ZSTD_free*()` functions accept NULL pointers (#2521, @animalize)
doc: Add style guide docs for open source contributors (#2626, @Cyan4973)
tests: Better regression test coverage for different dictionary modes (#2559, @senhuang42)
tests: Better test coverage of index reduction (#2603, @terrelln)
tests: OSS-Fuzz coverage for seekable format (#2617, @senhuang42)
tests: Test coverage for ZSTD threadpool API (#2604, @senhuang42)
build: Dynamic library built multithreaded by default (#2584, @senhuang42)
build: Move `zstd_errors.h` and `zdict.h` to `lib/` root (#2597, @terrelln)
build: Allow `ZSTDMT_JOBSIZE_MIN` to be configured at compile-time, reduce default to 512KB (#2611, @Cyan4973)
build: Single file library build script moved to `build/` directory (#2618, @felixhandte)
build: `ZBUFF_*()` is no longer built by default (#2583, @senhuang42)
build: Fixed Meson build (#2548, @SupervisedThinking @kloczek)
build: Fix excessive compiler warnings with clang-cl and CMake (#2600, @nickhutchinson)
build: Detect presence of `md5` on Darwin (#2609, @felixhandte)
build: Avoid SIGBUS on armv6 (#2633, @bmwiedmann)
cli: `--progress` flag added to always display progress bar (#2595, @senhuang42)
cli: Allow reading from block devices with `--force` (#2613, @felixhandte)
cli: Fix CLI filesize display bug (#2550, @Cyan4973)
cli: Fix windows CLI `--filelist` end-of-line bug (#2620, @Cyan4973)
contrib: Various fixes for linux kernel patch (#2539, @terrelln)
contrib: Seekable format - Decompression hanging edge case fix (#2516, @senhuang42)
contrib: Seekable format - New seek table-only API (#2113 #2518, @mdittmer @Cyan4973)
contrib: Seekable format - Fix seek table descriptor check when loading (#2534, @foxeng)
contrib: Seekable format - Decompression fix for large offsets, (#2594, @azat)
misc: Automatically published release tarballs available on Github (#2535, @felixhandte)
v1.4.9 (Mar 1, 2021)
bug: Use `umask()` to Constrain Created File Permissions (#2495, @felixhandte)
bug: Make Simple Single-Pass Functions Ignore Advanced Parameters (#2498, @terrelln)
api: Add (De)Compression Tracing Functionality (#2482, @terrelln)
api: Support References to Multiple DDicts (#2446, @senhuang42)
api: Add Function to Generate Skippable Frame (#2439, @senhuang42)
perf: New Algorithms for the Long Distance Matcher (#2483, @mpu)
perf: Performance Improvements for Long Distance Matcher (#2464, @mpu)
perf: Don't Shrink Window Log when Streaming with a Dictionary (#2451, @terrelln)
cli: Fix `--output-dir-mirror`'s Rejection of `..`-Containing Paths (#2512, @felixhandte)
cli: Allow Input From Console When `-f`/`--force` is Passed (#2466, @felixhandte)
cli: Improve Help Message (#2500, @senhuang42)
tests: Remove Flaky Tests (#2455, #2486, #2445, @Cyan4973)
tests: Correctly Invoke md5 Utility on NetBSD (#2492, @niacat)
tests: Avoid Using `stat -c` on NetBSD (#2513, @felixhandte)
build: Zstd CLI Can Now be Linked to Dynamic `libzstd` (#2457, #2454 @Cyan4973)
build: Hide and Avoid Using Static-Only Symbols (#2501, #2504, @skitt)
build: CMake: Enable Only C for lib/ and programs/ Projects (#2498, @concatime)
build: CMake: Use `configure_file()` to Create the `.pc` File (#2462, @lazka)
build: Fix Fuzzer Compiler Detection & Update UBSAN Flags (#2503, @terrelln)
build: Add Guards for `_LARGEFILE_SOURCE` and `_LARGEFILE64_SOURCE` (#2444, @indygreg)
build: Improve `zlibwrapper` Makefile (#2437, @Cyan4973)
contrib: Add `recover_directory` Program (#2473, @terrelln)
doc: Change License Year to 2021 (#2452 & #2465, @terrelln & @senhuang42)
doc: Fix Typos (#2459, @ThomasWaldmann)
v1.4.8 (Dec 18, 2020)
hotfix: wrong alignment of an internal buffer
v1.4.7 (Dec 16, 2020)
perf: stronger --long mode at high compression levels, by @senhuang42
perf: stronger --patch-from at high compression levels, thanks to --long improvements
perf: faster dictionary compression at medium compression levels, by @felixhandte
perf: small speed & memory usage improvements for ZSTD_compress2(), by @terrelln
perf: improved fast compression speeds with Visual Studio, by @animalize
cli : Set nb of threads with environment variable ZSTD_NBTHREADS, by @senhuang42
cli : accept decompressing files with *.zstd suffix
cli : provide a condensed summary by default when processing multiple files
cli : fix : stdin input no longer confused as user prompt
cli : improve accuracy of several error messages
api : new sequence ingestion API, by @senhuang42
api : shared thread pool: control total nb of threads used by multiple compression jobs, by @marxin
api : new ZSTD_getDictID_fromCDict(), by @LuAPi
api : zlibWrapper only uses public API, and is compatible with dynamic library, by @terrelln
api : fix : multithreaded compression has predictable output even in special cases (see #2327) (issue not accessible from cli)
api : fix : dictionary compression correctly respects dictionary compression level (see #2303) (issue not accessible from cli)
build: fix cmake script when using path with spaces, by @terrelln
build: improved compile-time detection of aarch64/neon platforms, by @bsdimp
build: Fix building on AIX 5.1, by @likema
build: compile paramgrill with cmake on Windows, requested by @mirh
doc : clarify repcode updates in format specification, by @felixhandte
v1.4.6
fix : Always return dstSize_tooSmall when that is the case
fix : Fix ZSTD_initCStream_advanced() with static allocation and no dictionary
perf: Improve small block decompression speed by 20%+, by @terrelln
perf: Reduce compression stack usage by 1 KB, by @terrelln
perf: Improve decompression speed by improving ZSTD_wildcopy, by @helloguo (#2252, #2256)
perf: Improve histogram construction, by @cyan4973 (#2253)
cli : Add --output-dir-mirror option, by @xxie24 (#2219)
cli : Warn when (de)compressing multiple files into a single output, by @senhuang42 (#2279)
cli : Improved progress bar and status summary when (de)compressing multiple files, by @senhuang42 (#2283)
cli : Call stat less often, by @felixhandte (#2262)
cli : Allow --patch-from XXX and --filelist XXX in addition to --patch-from=XXX and --filelist=XXX, by @cyan4973 (#2250)
cli : Allow --patch-from to compress stdin with --stream-size, by @bimbashrestha (#2206)
api : Do not install zbuff.h, since it has long been deprecated, by @cyan4973 (#2166).
api : Fix ZSTD_CCtx_setParameter() with ZSTD_c_compressionLevel to make 0 mean default level, by @i-do-cpp (#2291)
api : Rename ZSTDMT_NBTHREADS_MAX to ZSTDMT_NBWORKERS_MAX, by @marxin (#2228).
build: Install pkg-config file with CMake and MinGW, by @tonytheodore (#2183)
build: Install DLL with CMake on Windows, by @BioDataAnalysis (#2221)
build: Fix DLL install location with CMake, by @xantares and @bimbashrestha (#2186)
build: Add ZSTD_NO_UNUSED_FUNCTIONS macro to hide unused functions
build: Add ZSTD_NO_INTRINSICS macro to avoid explicit intrinsics
build: Add STATIC_BMI2 macro for compile time detection of BMI2 on MSVC, by @Niadb (#2258)
build: Fix -Wcomma warnings, by @cwoffenden
build: Remove distutils requirement for meson build, by @neheb (#2197)
build: Fix cli compilation with uclibc
build: Fix cli compilation without st_mtime, by @ffontaine (#2246)
build: Fix shadowing warnings in library
build: Fix single file library compilation with Enscripten, by @yoshihitoh (#2227)
misc: Improve single file library and include dictBuilder, by @cwoffenden
misc: Allow compression dictionaries with missing symbols
misc: Add freestanding translation script in contrib/freestanding_lib
misc: Collect all of zstd's libc dependencies into zstd_deps.h
doc : Add ZSTD_versionString() to manual, by @animalize
doc : Fix documentation for ZSTD_CCtxParams_setParameter(), by @felixhandte (#2270)
v1.4.5 (May 22, 2020)
fix : Compression ratio regression on huge files (> 3 GB) using high levels (--ultra) and multithreading, by @terrelln
perf: Improved decompression speed: x64 : +10% (clang) / +5% (gcc); ARM : from +15% to +50%, depending on SoC, by @terrelln
perf: Automatically downsizes ZSTD_DCtx when too large for too long (#2069, by @bimbashreshta)
perf: Improved fast compression speed on aarch64 (#2040, ~+3%, by @caoyzh)
perf: Small level 1 compression speed gains (depending on compiler)
cli : New --patch-from command, create and apply patches from files, by @bimbashreshta
cli : New --filelist= : Provide a list of files to operate upon from a file
cli : -b -d command can now benchmark decompression on multiple files
cli : New --no-content-size command
cli : New --show-default-cparams information command
api : ZDICT_finalizeDictionary() is promoted to stable (#2111)
api : new experimental parameter ZSTD_d_stableOutBuffer (#2094)
build: Generate a single-file libzstd library (#2065, by @cwoffenden)
build: Relative includes no longer require -I compiler flags for zstd lib subdirs (#2103, by @felixhandte)
build: zstd now compiles cleanly under -pedantic (#2099)
build: zstd now compiles with make-4.3
build: Support mingw cross-compilation from Linux, by @Ericson2314
build: Meson multi-thread build fix on windows
build: Some misc icc fixes backed by new ci test on travis
misc: bitflip analyzer tool, by @felixhandte
misc: Extend largeNbDicts benchmark to compression
misc: Edit-distance match finder in contrib/
doc : Improved beginner CONTRIBUTING.md docs
doc : New issue templates for zstd
v1.4.4 (Nov 6, 2019)
perf: Improved decompression speed, by > 10%, by @terrelln
perf: Better compression speed when re-using a context, by @felixhandte
perf: Fix compression ratio when compressing large files with small dictionary, by @senhuang42
perf: zstd reference encoder can generate RLE blocks, by @bimbashrestha
perf: minor generic speed optimization, by @davidbolvansky
api: new ability to extract sequences from the parser for analysis, by @bimbashrestha
api: fixed decoding of magic-less frames, by @terrelln
api: fixed ZSTD_initCStream_advanced() performance with fast modes, reported by @QrczakMK
cli: Named pipes support, by @bimbashrestha
cli: short tar's extension support, by @stokito
cli: command --output-dir-flat= , generates target files into requested directory, by @senhuang42
cli: commands --stream-size=# and --size-hint=#, by @nmagerko
cli: command --exclude-compressed, by @shashank0791
cli: faster `-t` test mode
cli: improved some error messages, by @vangyzen
cli: fix command `-D dictionary` on Windows, reported by @artyompetrov
cli: fix rare deadlock condition within dictionary builder, by @terrelln
build: single-file decoder with emscripten compilation script, by @cwoffenden
build: fixed zlibWrapper compilation on Visual Studio, reported by @bluenlive
build: fixed deprecation warning for certain gcc version, reported by @jasonma163
build: fix compilation on old gcc versions, by @cemeyer
build: improved installation directories for cmake script, by Dmitri Shubin
pack: modified pkgconfig, for better integration into openwrt, requested by @neheb
misc: Improved documentation : ZSTD_CLEVEL, DYNAMIC_BMI2, ZSTD_CDict, function deprecation, zstd format
misc: fixed educational decoder : accept larger literals section, and removed UNALIGNED() macro
v1.4.3 (Aug 20, 2019)
bug: Fix Dictionary Compression Ratio Regression by @cyan4973 (#1709)
bug: Fix Buffer Overflow in legacy v0.3 decompression by @felixhandte (#1722)
build: Add support for IAR C/C++ Compiler for Arm by @joseph0918 (#1705)
v1.4.2 (Jul 26, 2019)
bug: Fix bug in zstd-0.5 decoder by @terrelln (#1696)
bug: Fix seekable decompression in-memory API by @iburinoc (#1695)
misc: Validate blocks are smaller than size limit by @vivekmg (#1685)
misc: Restructure source files by @ephiepark (#1679)
v1.4.1 (Jul 20, 2019)
bug: Fix data corruption in niche use cases by @terrelln (#1659)
bug: Fuzz legacy modes, fix uncovered bugs by @terrelln (#1593, #1594, #1595)
bug: Fix out of bounds read by @terrelln (#1590)
perf: Improve decode speed by ~7% @mgrice (#1668)
perf: Slightly improved compression ratio of level 3 and 4 (ZSTD_dfast) by @cyan4973 (#1681)
perf: Slightly faster compression speed when re-using a context by @cyan4973 (#1658)
perf: Improve compression ratio for small windowLog by @cyan4973 (#1624)
perf: Faster compression speed in high compression mode for repetitive data by @terrelln (#1635)
api: Add parameter to generate smaller dictionaries by @tyler-tran (#1656)
cli: Recognize symlinks when built in C99 mode by @felixhandte (#1640)
cli: Expose cpu load indicator for each file on -vv mode by @ephiepark (#1631)
cli: Restrict read permissions on destination files by @chungy (#1644)
cli: zstdgrep: handle -f flag by @felixhandte (#1618)
cli: zstdcat: follow symlinks by @vejnar (#1604)
doc: Remove extra size limit on compressed blocks by @felixhandte (#1689)
doc: Fix typo by @yk-tanigawa (#1633)
doc: Improve documentation on streaming buffer sizes by @cyan4973 (#1629)
build: CMake: support building with LZ4 @leeyoung624 (#1626)
build: CMake: install zstdless and zstdgrep by @leeyoung624 (#1647)
build: CMake: respect existing uninstall target by @j301scott (#1619)
build: Make: skip multithread tests when built without support by @michaelforney (#1620)
build: Make: Fix examples/ test target by @sjnam (#1603)
build: Meson: rename options out of deprecated namespace by @lzutao (#1665)
build: Meson: fix build by @lzutao (#1602)
build: Visual Studio: don't export symbols in static lib by @scharan (#1650)
build: Visual Studio: fix linking by @absotively (#1639)
build: Fix MinGW-W64 build by @myzhang1029 (#1600)
misc: Expand decodecorpus coverage by @ephiepark (#1664)
v1.4.0 (Apr 17, 2019)
perf: Improve level 1 compression speed in most scenarios by 6% by @gbtucker and @terrelln
api: Move the advanced API, including all functions in the staging section, to the stable section
api: Make ZSTD_e_flush and ZSTD_e_end block for maximum forward progress
api: Rename ZSTD_CCtxParam_getParameter to ZSTD_CCtxParams_getParameter
api: Rename ZSTD_CCtxParam_setParameter to ZSTD_CCtxParams_setParameter
api: Don't export ZSTDMT functions from the shared library by default
api: Require ZSTD_MULTITHREAD to be defined to use ZSTDMT
api: Add ZSTD_decompressBound() to provide an upper bound on decompressed size by @shakeelrao
api: Fix ZSTD_decompressDCtx() corner cases with a dictionary
api: Move ZSTD_getDictID_*() functions to the stable section
api: Add ZSTD_c_literalCompressionMode flag to enable or disable literal compression by @terrelln
api: Allow compression parameters to be set when a dictionary is used
api: Allow setting parameters before or after ZSTD_CCtx_loadDictionary() is called
api: Fix ZSTD_estimateCStreamSize_usingCCtxParams()
api: Setting ZSTD_d_maxWindowLog to 0 means use the default
cli: Ensure that a dictionary is not used to compress itself by @shakeelrao
cli: Add --[no-]compress-literals flag to enable or disable literal compression
doc: Update the examples to use the advanced API
doc: Explain how to transition from old streaming functions to the advanced API in the header
build: Improve the Windows release packages
build: Improve CMake build by @hjmjohnson
build: Build fixes for FreeBSD by @lwhsu
build: Remove redundant warnings by @thatsafunnyname
build: Fix tests on OpenBSD by @bket
build: Extend fuzzer build system to work with the new clang engine
build: CMake now creates the libzstd.so.1 symlink
build: Improve Menson build by @lzutao
misc: Fix symbolic link detection on FreeBSD
misc: Use physical core count for -T0 on FreeBSD by @cemeyer
misc: Fix zstd --list on truncated files by @kostmo
misc: Improve logging in debug mode by @felixhandte
misc: Add CirrusCI tests by @lwhsu
misc: Optimize dictionary memory usage in corner cases
misc: Improve the dictionary builder on small or homogeneous data
misc: Fix spelling across the repo by @jsoref
v1.3.8 (Dec 28, 2018)
perf: better decompression speed on large files (+7%) and cold dictionaries (+15%)
perf: slightly better compression ratio at high compression modes
api : finalized advanced API, last stage before "stable" status
api : new --rsyncable mode, by @terrelln
api : support decompression of empty frames into NULL (used to be an error) (#1385)
build: new set of macros to build a minimal size decoder, by @felixhandte
build: fix compilation on MIPS32, reported by @clbr (#1441)
build: fix compilation with multiple -arch flags, by @ryandesign
build: highly upgraded meson build, by @lzutao
build: improved buck support, by @obelisk
build: fix cmake script : can create debug build, by @pitrou
build: Makefile : grep works on both colored consoles and systems without color support
build: fixed zstd-pgo, by @bmwiedemann
cli : support ZSTD_CLEVEL environment variable, by @yijinfb (#1423)
cli : --no-progress flag, preserving final summary (#1371), by @terrelln
cli : ensure destination file is not source file (#1422)
cli : clearer error messages, especially when input file not present
doc : clarified zstd_compression_format.md, by @ulikunitz
misc: fixed zstdgrep, returns 1 on failure, by @lzutao
misc: NEWS renamed as CHANGELOG, in accordance with fboss
v1.3.7 (Oct 20, 2018)
perf: slightly better decompression speed on clang (depending on hardware target)
fix : performance of dictionary compression for small input < 4 KB at levels 9 and 10
build: no longer build backtrace by default in release mode; restrict further automatic mode
build: control backtrace support through build macro BACKTRACE
misc: added man pages for zstdless and zstdgrep, by @samrussell
v1.3.6 (Oct 6, 2018)
perf: much faster dictionary builder, by @jenniferliu
perf: faster dictionary compression on small data when using multiple contexts, by @felixhandte
perf: faster dictionary decompression when using a very large number of dictionaries simultaneously
cli : fix : does no longer overwrite destination when source does not exist (#1082)
cli : new command --adapt, for automatic compression level adaptation
api : fix : block api can be streamed with > 4 GB, reported by @catid
api : reduced ZSTD_DDict size by 2 KB
api : minimum negative compression level is defined, and can be queried using ZSTD_minCLevel().
build: support Haiku target, by @korli
build: Read Legacy format is limited to v0.5+ by default. Can be changed at compile time with macro ZSTD_LEGACY_SUPPORT.
doc : zstd_compression_format.md updated to match wording in IETF RFC 8478
misc: tests/paramgrill, a parameter optimizer, by @GeorgeLu97
v1.3.5 (Jun 29, 2018)
perf: much faster dictionary compression, by @felixhandte
perf: small quality improvement for dictionary generation, by @terrelln
perf: slightly improved high compression levels (notably level 19)
mem : automatic memory release for long duration contexts
cli : fix : overlapLog can be manually set
cli : fix : decoding invalid lz4 frames
api : fix : performance degradation for dictionary compression when using advanced API, by @terrelln
api : change : clarify ZSTD_CCtx_reset() vs ZSTD_CCtx_resetParameters(), by @terrelln
build: select custom libzstd scope through control macros, by @GeorgeLu97
build: OpenBSD patch, by @bket
build: make and make all are compatible with -j
doc : clarify zstd_compression_format.md, updated for IETF RFC process
misc: pzstd compatible with reproducible compilation, by @lamby
v1.3.4 (Mar 27, 2018)
perf: faster speed (especially decoding speed) on recent cpus (haswell+)
perf: much better performance associating --long with multi-threading, by @terrelln
perf: better compression at levels 13-15
cli : asynchronous compression by default, for faster experience (use --single-thread for former behavior)
cli : smoother status report in multi-threading mode
cli : added command --fast=#, for faster compression modes
cli : fix crash when not overwriting existing files, by Pádraig Brady (@pixelb)
api : `nbThreads` becomes `nbWorkers` : 1 triggers asynchronous mode
api : compression levels can be negative, for even more speed
api : ZSTD_getFrameProgression() : get precise progress status of ZSTDMT anytime
api : ZSTDMT can accept new compression parameters during compression
api : implemented all advanced dictionary decompression prototypes
build: improved meson recipe, by Shawn Landden (@shawnl)
build: VS2017 scripts, by @HaydnTrigg
misc: all /contrib projects fixed
misc: added /contrib/docker script by @gyscos
v1.3.3 (Dec 21, 2017)
perf: faster zstd_opt strategy (levels 16-19)
fix : bug #944 : multithreading with shared ditionary and large data, reported by @gsliepen
cli : fix : content size written in header by default
cli : fix : improved LZ4 format support, by @felixhandte
cli : new : hidden command `-S`, to benchmark multiple files while generating one result per file
api : fix : support large skippable frames, by @terrelln
api : fix : streaming interface was adding a useless 3-bytes null block to small frames
api : change : when setting `pledgedSrcSize`, use `ZSTD_CONTENTSIZE_UNKNOWN` macro value to mean "unknown"
build: fix : compilation under rhel6 and centos6, reported by @pixelb
build: added `check` target
v1.3.2 (Oct 10, 2017)
new : long range mode, using --long command, by Stella Lau (@stellamplau)
new : ability to generate and decode magicless frames (#591)
changed : maximum nb of threads reduced to 200, to avoid address space exhaustion in 32-bits mode
fix : multi-threading compression works with custom allocators
fix : ZSTD_sizeof_CStream() was over-evaluating memory usage
fix : a rare compression bug when compression generates very large distances and bunch of other conditions (only possible at --ultra -22)
fix : 32-bits build can now decode large offsets (levels 21+)
cli : added LZ4 frame support by default, by Felix Handte (@felixhandte)
cli : improved --list output
cli : new : can split input file for dictionary training, using command -B#
cli : new : clean operation artefact on Ctrl-C interruption
cli : fix : do not change /dev/null permissions when using command -t with root access, reported by @mike155 (#851)
cli : fix : write file size in header in multiple-files mode
api : added macro ZSTD_COMPRESSBOUND() for static allocation
api : experimental : new advanced decompression API
api : fix : sizeof_CCtx() used to over-estimate
build: fix : no-multithread variant compiles without pool.c dependency, reported by Mitchell Blank Jr (@mitchblank) (#819)
build: better compatibility with reproducible builds, by Bernhard M. Wiedemann (@bmwiedemann) (#818)
example : added streaming_memory_usage
license : changed /examples license to BSD + GPLv2
license : fix a few header files to reflect new license (#825)
v1.3.1 (Aug 21, 2017)
New license : BSD + GPLv2
perf: substantially decreased memory usage in Multi-threading mode, thanks to reports by Tino Reichardt (@mcmilk)
perf: Multi-threading supports up to 256 threads. Cap at 256 when more are requested (#760)
cli : improved and fixed --list command, by @ib (#772)
cli : command -vV to list supported formats, by @ib (#771)
build : fixed binary variants, reported by @svenha (#788)
build : fix Visual compilation for non x86/x64 targets, reported by Greg Slazinski (@GregSlazinski) (#718)
API exp : breaking change : ZSTD_getframeHeader() provides more information
API exp : breaking change : pinned down values of error codes
doc : fixed huffman example, by Ulrich Kunitz (@ulikunitz)
new : contrib/adaptive-compression, I/O driven compression strength, by Paul Cruz (@paulcruz74)
new : contrib/long_distance_matching, statistics by Stella Lau (@stellamplau)
updated : contrib/linux-kernel, by Nick Terrell (@terrelln)
v1.3.0 (Jul 6, 2017)
cli : new : `--list` command, by Paul Cruz
cli : changed : xz/lzma support enabled by default
cli : changed : `-t *` continue processing list after a decompression error
API : added : ZSTD_versionString()
API : promoted to stable status : ZSTD_getFrameContentSize(), by Sean Purcell
API exp : new advanced API : ZSTD_compress_generic(), ZSTD_CCtx_setParameter()
API exp : new : API for static or external allocation : ZSTD_initStatic?Ctx()
API exp : added : ZSTD_decompressBegin_usingDDict(), requested by Guy Riddle (#700)
API exp : clarified memory estimation / measurement functions.
API exp : changed : strongest strategy renamed ZSTD_btultra, fastest strategy ZSTD_fast set to 1
tools : decodecorpus can generate random dictionary-compressed samples, by Paul Cruz
new : contrib/seekable_format, demo and API, by Sean Purcell
changed : contrib/linux-kernel, updated version and license, by Nick Terrell
v1.2.0 (May 5, 2017)
cli : changed : Multithreading enabled by default (use target zstd-nomt or HAVE_THREAD=0 to disable)
cli : new : command -T0 means "detect and use nb of cores", by Sean Purcell
cli : new : zstdmt symlink hardwired to `zstd -T0`
cli : new : command --threads=# (#671)
cli : changed : cover dictionary builder by default, for improved quality, by Nick Terrell
cli : new : commands --train-cover and --train-legacy, to select dictionary algorithm and parameters
cli : experimental targets `zstd4` and `xzstd4`, with support for lz4 format, by Sean Purcell
cli : fix : does not output compressed data on console
cli : fix : ignore symbolic links unless --force specified,
API : breaking change : ZSTD_createCDict_advanced(), only use compressionParameters as argument
API : added : prototypes ZSTD_*_usingCDict_advanced(), for direct control over frameParameters.
API : improved: ZSTDMT_compressCCtx() reduced memory usage
API : fix : ZSTDMT_compressCCtx() now provides srcSize in header (#634)
API : fix : src size stored in frame header is controlled at end of frame
API : fix : enforced consistent rules for pledgedSrcSize==0 (#641)
API : fix : error code "GENERIC" replaced by "dstSizeTooSmall" when appropriate
build: improved cmake script, by @Majlen
build: enabled Multi-threading support for *BSD, by Baptiste Daroussin
tools: updated Paramgrill. Command -O# provides best parameters for sample and speed target.
new : contrib/linux-kernel version, by Nick Terrell
v1.1.4 (Mar 18, 2017)
cli : new : can compress in *.gz format, using --format=gzip command, by Przemyslaw Skibinski
cli : new : advanced benchmark command --priority=rt
cli : fix : write on sparse-enabled file systems in 32-bits mode, by @ds77
cli : fix : --rm remains silent when input is stdin
cli : experimental : xzstd, with support for xz/lzma decoding, by Przemyslaw Skibinski
speed : improved decompression speed in streaming mode for single shot scenarios (+5%)
memory: DDict (decompression dictionary) memory usage down from 150 KB to 20 KB
arch: 32-bits variant able to generate and decode very long matches (>32 MB), by Sean Purcell
API : new : ZSTD_findFrameCompressedSize(), ZSTD_getFrameContentSize(), ZSTD_findDecompressedSize()
API : changed : dropped support of legacy versions <= v0.3 (can be changed by modifying ZSTD_LEGACY_SUPPORT value)
build : new: meson build system in contrib/meson, by Dima Krasner
build : improved cmake script, by @Majlen
build : added -Wformat-security flag, as recommended by Padraig Brady
doc : new : educational decoder, by Sean Purcell
v1.1.3 (Feb 7, 2017)
cli : zstd can decompress .gz files (can be disabled with `make zstd-nogz` or `make HAVE_ZLIB=0`)
cli : new : experimental target `make zstdmt`, with multi-threading support
cli : new : improved dictionary builder "cover" (experimental), by Nick Terrell, based on prior work by Giuseppe Ottaviano.
cli : new : advanced commands for detailed parameters, by Przemyslaw Skibinski
cli : fix zstdless on Mac OS-X, by Andrew Janke
cli : fix #232 "compress non-files"
dictBuilder : improved dictionary generation quality, thanks to Nick Terrell
API : new : lib/compress/ZSTDMT_compress.h multithreading API (experimental)
API : new : ZSTD_create?Dict_byReference(), requested by Bartosz Taudul
API : new : ZDICT_finalizeDictionary()
API : fix : ZSTD_initCStream_usingCDict() properly writes dictID into frame header, by Gregory Szorc (#511)
API : fix : all symbols properly exposed in libzstd, by Nick Terrell
build : support for Solaris target, by Przemyslaw Skibinski
doc : clarified specification, by Sean Purcell
v1.1.2 (Dec 15, 2016)
API : streaming : decompression : changed : automatic implicit reset when chain-decoding new frames without init
API : experimental : added : dictID retrieval functions, and ZSTD_initCStream_srcSize()
API : zbuff : changed : prototypes now generate deprecation warnings
lib : improved : faster decompression speed at ultra compression settings and 32-bits mode
lib : changed : only public ZSTD_ symbols are now exposed
lib : changed : reduced usage of stack memory
lib : fixed : several corner case bugs, by Nick Terrell
cli : new : gzstd, experimental version able to decode .gz files, by Przemyslaw Skibinski
cli : new : preserve file attributes
cli : new : added zstdless and zstdgrep tools
cli : fixed : status displays total amount decoded, even for file consisting of multiple frames (like pzstd)
cli : fixed : zstdcat
zlib_wrapper : added support for gz* functions, by Przemyslaw Skibinski
install : better compatibility with FreeBSD, by Dimitry Andric
source tree : changed : zbuff source files moved to lib/deprecated
v1.1.1 (Nov 2, 2016)
New : command -M#, --memory=, --memlimit=, --memlimit-decompress= to limit allowed memory consumption
New : doc/zstd_manual.html, by Przemyslaw Skibinski
Improved : slightly better compression ratio at --ultra levels (>= 20)
Improved : better memory usage when using streaming compression API, thanks to @Rogier-5 report
Added : API : ZSTD_initCStream_usingCDict(), ZSTD_initDStream_usingDDict() (experimental section)
Added : example/multiple_streaming_compression.c
Changed : zstd_errors.h is now installed within /include (and replaces errors_public.h)
Updated man page
Fixed : zstd-small, zstd-compress and zstd-decompress compilation targets
v1.1.0 (Sep 28, 2016)
New : contrib/pzstd, parallel version of zstd, by Nick Terrell
added : NetBSD install target (#338)
Improved : speed for batches of small files
Improved : speed of zlib wrapper, by Przemyslaw Skibinski
Changed : libzstd on Windows supports legacy formats, by Christophe Chevalier
Fixed : CLI -d output to stdout by default when input is stdin (#322)
Fixed : CLI correctly detects console on Mac OS-X
Fixed : CLI supports recursive mode `-r` on Mac OS-X
Fixed : Legacy decoders use unified error codes, reported by benrg (#341), fixed by Przemyslaw Skibinski
Fixed : compatibility with OpenBSD, reported by Juan Francisco Cantero Hurtado (#319)
Fixed : compatibility with Hurd, by Przemyslaw Skibinski (#365)
Fixed : zstd-pgo, reported by octoploid (#329)
v1.0.0 (Sep 1, 2016)
Change Licensing, all project is now BSD, Copyright Facebook
Small decompression speed improvement
API : Streaming API supports legacy format
API : ZDICT_getDictID(), ZSTD_sizeof_{CCtx, DCtx, CStream, DStream}(), ZSTD_setDStreamParameter()
CLI supports legacy formats v0.4+
Fixed : compression fails on certain huge files, reported by Jesse McGrew
Enhanced documentation, by Przemyslaw Skibinski
v0.8.1 (Aug 18, 2016)
New streaming API
Changed : --ultra now enables levels beyond 19
Changed : -i# now selects benchmark time in second
Fixed : ZSTD_compress* can now compress > 4 GB in a single pass, reported by Nick Terrell
Fixed : speed regression on specific patterns (#272)
Fixed : support for Z_SYNC_FLUSH, by Dmitry Krot (#291)
Fixed : ICC compilation, by Przemyslaw Skibinski
v0.8.0 (Aug 2, 2016)
Improved : better speed on clang and gcc -O2, thanks to Eric Biggers
New : Build on FreeBSD and DragonFly, thanks to JrMarino
Changed : modified API : ZSTD_compressEnd()
Fixed : legacy mode with ZSTD_HEAPMODE=0, by Christopher Bergqvist
Fixed : premature end of frame when zero-sized raw block, reported by Eric Biggers
Fixed : large dictionaries (> 384 KB), reported by Ilona Papava
Fixed : checksum correctly checked in single-pass mode
Fixed : combined --test amd --rm, reported by Andreas M. Nilsson
Modified : minor compression level adaptations
Updated : compression format specification to v0.2.0
changed : zstd.h moved to /lib directory
v0.7.5 (Aug 1, 2016)
Transition version, supporting decoding of v0.8.x
v0.7.4 (Jul 17, 2016)
Added : homebrew for Mac, by Daniel Cade
Added : more examples
Fixed : segfault when using small dictionaries, reported by Felix Handte
Modified : default compression level for CLI is now 3
Updated : specification, to v0.1.1
v0.7.3 (Jul 9, 2016)
New : compression format specification
New : `--` separator, stating that all following arguments are file names. Suggested by Chip Turner.
New : `ZSTD_getDecompressedSize()`
New : OpenBSD target, by Juan Francisco Cantero Hurtado
New : `examples` directory
fixed : dictBuilder using HC levels, reported by Bartosz Taudul
fixed : legacy support from ZSTD_decompress_usingDDict(), reported by Felix Handte
fixed : multi-blocks decoding with intermediate uncompressed blocks, reported by Greg Slazinski
modified : removed "mem.h" and "error_public.h" dependencies from "zstd.h" (experimental section)
modified : legacy functions no longer need magic number
v0.7.2 (Jul 4, 2016)
fixed : ZSTD_decompressBlock() using multiple consecutive blocks. Reported by Greg Slazinski.
fixed : potential segfault on very large files (many gigabytes). Reported by Chip Turner.
fixed : CLI displays system error message when destination file cannot be created (#231). Reported by Chip Turner.
v0.7.1 (Jun 23, 2016)
fixed : ZBUFF_compressEnd() called multiple times with too small `dst` buffer, reported by Christophe Chevalier
fixed : dictBuilder fails if first sample is too small, reported by Руслан Ковалёв
fixed : corruption issue, reported by cj
modified : checksum enabled by default in command line mode
v0.7.0 (Jun 17, 2016)
New : Support for directory compression, using `-r`, thanks to Przemyslaw Skibinski
New : Command `--rm`, to remove source file after successful de/compression
New : Visual build scripts, by Christophe Chevalier
New : Support for Sparse File-systems (do not use space for zero-filled sectors)
New : Frame checksum support
New : Support pass-through mode (when using `-df`)
API : more efficient Dictionary API : `ZSTD_compress_usingCDict()`, `ZSTD_decompress_usingDDict()`
API : create dictionary files from custom content, by Giuseppe Ottaviano
API : support for custom malloc/free functions
New : controllable Dictionary ID
New : Support for skippable frames
v0.6.1 (May 13, 2016)
New : zlib wrapper API, thanks to Przemyslaw Skibinski
New : Ability to compile compressor / decompressor separately
Changed : new lib directory structure
Fixed : Legacy codec v0.5 compatible with dictionary decompression
Fixed : Decoder corruption error (#173)
Fixed : null-string roundtrip (#176)
New : benchmark mode can select directory as input
Experimental : midipix support, VMS support
v0.6.0 (Apr 13, 2016)
Stronger high compression modes, thanks to Przemyslaw Skibinski
API : ZSTD_getFrameParams() provides size of decompressed content
New : highest compression modes require `--ultra` command to fully unleash their capacity
Fixed : zstd cli return error code > 0 and removes dst file artifact when decompression fails, thanks to Chip Turner
v0.5.1 (Feb 18, 2016)
New : Optimal parsing => Very high compression modes, thanks to Przemyslaw Skibinski
Changed : Dictionary builder integrated into libzstd and zstd cli
Changed (!) : zstd cli now uses "multiple input files" as default mode. See `zstd -h`.
Fix : high compression modes for big-endian platforms
New : zstd cli : `-t` | `--test` command
v0.5.0 (Feb 5, 2016)
New : dictionary builder utility
Changed : streaming & dictionary API
Improved : better compression of small data
v0.4.7 (Jan 22, 2016)
Improved : small compression speed improvement in HC mode
Changed : `zstd_decompress.c` has ZSTD_LEGACY_SUPPORT to 0 by default
fix : bt search bug
v0.4.6 (Jan 13, 2016)
fix : fast compression mode on Windows
New : cmake configuration file, thanks to Artyom Dymchenko
Improved : high compression mode on repetitive data
New : block-level API
New : ZSTD_duplicateCCtx()
v0.4.5 (Dec 18, 2015)
new : -m/--multiple : compress/decompress multiple files
v0.4.4 (Dec 14, 2015)
Fixed : high compression modes for Windows 32 bits
new : external dictionary API extended to buffered mode and accessible through command line
new : windows DLL project, thanks to Christophe Chevalier
v0.4.3 (Dec 7, 2015)
new : external dictionary API
new : zstd-frugal
v0.4.2 (Dec 2, 2015)
Generic minor improvements for small blocks
Fixed : big-endian compatibility, by Peter Harris (#85)
v0.4.1 (Dec 1, 2015)
Fixed : ZSTD_LEGACY_SUPPORT=0 build mode (reported by Luben)
removed `zstd.c`
v0.4.0 (Nov 29, 2015)
Command line utility compatible with high compression levels
Removed zstdhc => merged into zstd
Added : ZBUFF API (see zstd_buffered.h)
Rolling buffer support
v0.3.6 (Nov 10, 2015)
small blocks params
v0.3.5 (Nov 9, 2015)
minor generic compression improvements
v0.3.4 (Nov 6, 2015)
Faster fast cLevels
v0.3.3 (Nov 5, 2015)
Small compression ratio improvement
v0.3.2 (Nov 2, 2015)
Fixed Visual Studio
v0.3.1 (Nov 2, 2015)
Small compression ratio improvement
v0.3 (Oct 30, 2015)
HC mode : compression levels 2-26
v0.2.2 (Oct 28, 2015)
Fix : Visual Studio 2013 & 2015 release compilation, by Christophe Chevalier
v0.2.1 (Oct 24, 2015)
Fix : Read errors, advanced fuzzer tests, by Hanno Böck
v0.2.0 (Oct 22, 2015)
**Breaking format change**
Faster decompression speed
Can still decode v0.1 format
v0.1.3 (Oct 15, 2015)
fix uninitialization warning, reported by Evan Nemerson
v0.1.2 (Sep 11, 2015)
frame concatenation support
v0.1.1 (Aug 27, 2015)
fix compression bug
detects write-flush errors
v0.1.0 (Aug 25, 2015)
first release

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# Code of Conduct
Facebook has adopted a Code of Conduct that we expect project participants to adhere to.
Please read the [full text](https://code.fb.com/codeofconduct/)
so that you can understand what actions will and will not be tolerated.

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# Contributing to Zstandard
We want to make contributing to this project as easy and transparent as
possible.
## Our Development Process
New versions are being developed in the "dev" branch,
or in their own feature branch.
When they are deemed ready for a release, they are merged into "release".
As a consequence, all contributions must stage first through "dev"
or their own feature branch.
## Pull Requests
We actively welcome your pull requests.
1. Fork the repo and create your branch from `dev`.
2. If you've added code that should be tested, add tests.
3. If you've changed APIs, update the documentation.
4. Ensure the test suite passes.
5. Make sure your code lints.
6. If you haven't already, complete the Contributor License Agreement ("CLA").
## Contributor License Agreement ("CLA")
In order to accept your pull request, we need you to submit a CLA. You only need
to do this once to work on any of Facebook's open source projects.
Complete your CLA here: <https://code.facebook.com/cla>
## Workflow
Zstd uses a branch-based workflow for making changes to the codebase. Typically, zstd
will use a new branch per sizable topic. For smaller changes, it is okay to lump multiple
related changes into a branch.
Our contribution process works in three main stages:
1. Local development
* Update:
* Checkout your fork of zstd if you have not already
```
git checkout https://github.com/<username>/zstd
cd zstd
```
* Update your local dev branch
```
git pull https://github.com/facebook/zstd dev
git push origin dev
```
* Topic and development:
* Make a new branch on your fork about the topic you're developing for
```
# branch names should be concise but sufficiently informative
git checkout -b <branch-name>
git push origin <branch-name>
```
* Make commits and push
```
# make some changes =
git add -u && git commit -m <message>
git push origin <branch-name>
```
* Note: run local tests to ensure that your changes didn't break existing functionality
* Quick check
```
make shortest
```
* Longer check
```
make test
```
2. Code Review and CI tests
* Ensure CI tests pass:
* Before sharing anything to the community, create a pull request in your own fork against the dev branch
and make sure that all GitHub Actions CI tests pass. See the Continuous Integration section below for more information.
* Ensure that static analysis passes on your development machine. See the Static Analysis section
below to see how to do this.
* Create a pull request:
* When you are ready to share you changes to the community, create a pull request from your branch
to facebook:dev. You can do this very easily by clicking 'Create Pull Request' on your fork's home
page.
* From there, select the branch where you made changes as your source branch and facebook:dev
as the destination.
* Examine the diff presented between the two branches to make sure there is nothing unexpected.
* Write a good pull request description:
* While there is no strict template that our contributors follow, we would like them to
sufficiently summarize and motivate the changes they are proposing. We recommend all pull requests,
at least indirectly, address the following points.
* Is this pull request important and why?
* Is it addressing an issue? If so, what issue? (provide links for convenience please)
* Is this a new feature? If so, why is it useful and/or necessary?
* Are there background references and documents that reviewers should be aware of to properly assess this change?
* Note: make sure to point out any design and architectural decisions that you made and the rationale behind them.
* Note: if you have been working with a specific user and would like them to review your work, make sure you mention them using (@<username>)
* Submit the pull request and iterate with feedback.
3. Merge and Release
* Getting approval:
* You will have to iterate on your changes with feedback from other collaborators to reach a point
where your pull request can be safely merged.
* To avoid too many comments on style and convention, make sure that you have a
look at our style section below before creating a pull request.
* Eventually, someone from the zstd team will approve your pull request and not long after merge it into
the dev branch.
* Housekeeping:
* Most PRs are linked with one or more Github issues. If this is the case for your PR, make sure
the corresponding issue is mentioned. If your change 'fixes' or completely addresses the
issue at hand, then please indicate this by requesting that an issue be closed by commenting.
* Just because your changes have been merged does not mean the topic or larger issue is complete. Remember
that the change must make it to an official zstd release for it to be meaningful. We recommend
that contributors track the activity on their pull request and corresponding issue(s) page(s) until
their change makes it to the next release of zstd. Users will often discover bugs in your code or
suggest ways to refine and improve your initial changes even after the pull request is merged.
## Static Analysis
Static analysis is a process for examining the correctness or validity of a program without actually
executing it. It usually helps us find many simple bugs. Zstd uses clang's `scan-build` tool for
static analysis. You can install it by following the instructions for your OS on https://clang-analyzer.llvm.org/scan-build.
Once installed, you can ensure that our static analysis tests pass on your local development machine
by running:
```
make staticAnalyze
```
In general, you can use `scan-build` to static analyze any build script. For example, to static analyze
just `contrib/largeNbDicts` and nothing else, you can run:
```
scan-build make -C contrib/largeNbDicts largeNbDicts
```
### Pitfalls of static analysis
`scan-build` is part of our regular CI suite. Other static analyzers are not.
It can be useful to look at additional static analyzers once in a while (and we do), but it's not a good idea to multiply the nb of analyzers run continuously at each commit and PR. The reasons are :
- Static analyzers are full of false positive. The signal to noise ratio is actually pretty low.
- A good CI policy is "zero-warning tolerance". That means that all issues must be solved, including false positives. This quickly becomes a tedious workload.
- Multiple static analyzers will feature multiple kind of false positives, sometimes applying to the same code but in different ways leading to :
+ tortuous code, trying to please multiple constraints, hurting readability and therefore maintenance. Sometimes, such complexity introduce other more subtle bugs, that are just out of scope of the analyzers.
+ sometimes, these constraints are mutually exclusive : if one try to solve one, the other static analyzer will complain, they can't be both happy at the same time.
- As if that was not enough, the list of false positives change with each version. It's hard enough to follow one static analyzer, but multiple ones with their own update agenda, this quickly becomes a massive velocity reducer.
This is different from running a static analyzer once in a while, looking at the output, and __cherry picking__ a few warnings that seem helpful, either because they detected a genuine risk of bug, or because it helps expressing the code in a way which is more readable or more difficult to misuse. These kinds of reports can be useful, and are accepted.
## Continuous Integration
CI tests run every time a pull request (PR) is created or updated. The exact tests
that get run will depend on the destination branch you specify. Some tests take
longer to run than others. Currently, our CI is set up to run a short
series of tests when creating a PR to the dev branch and a longer series of tests
when creating a PR to the release branch. You can look in the configuration files
of the respective CI platform for more information on what gets run when.
Most people will just want to create a PR with the destination set to their local dev
branch of zstd. You can then find the status of the tests on the PR's page. You can also
re-run tests and cancel running tests from the PR page or from the respective CI's dashboard.
Almost all of zstd's CI runs on GitHub Actions (configured at `.github/workflows`), which will automatically run on PRs to your
own fork. A small number of tests run on other services (e.g. Travis CI, Circle CI, Appveyor).
These require work to set up on your local fork, and (at least for Travis CI) cost money.
Therefore, if the PR on your local fork passes GitHub Actions, feel free to submit a PR
against the main repo.
### Third-party CI
A small number of tests cannot run on GitHub Actions, or have yet to be migrated.
For these, we use a variety of third-party services (listed below). It is not necessary to set
these up on your fork in order to contribute to zstd; however, we do link to instructions for those
who want earlier signal.
| Service | Purpose | Setup Links | Config Path |
|-----------|------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------|
| Travis CI | Used for testing on non-x86 architectures such as PowerPC | https://docs.travis-ci.com/user/tutorial/#to-get-started-with-travis-ci-using-github <br> https://github.com/marketplace/travis-ci | `.travis.yml` |
| AppVeyor | Used for some Windows testing (e.g. cygwin, mingw) | https://www.appveyor.com/blog/2018/10/02/github-apps-integration/ <br> https://github.com/marketplace/appveyor | `appveyor.yml` |
| Cirrus CI | Used for testing on FreeBSD | https://github.com/marketplace/cirrus-ci/ | `.cirrus.yml` |
| Circle CI | Historically was used to provide faster signal,<br/> but we may be able to migrate these to Github Actions | https://circleci.com/docs/2.0/getting-started/#setting-up-circleci <br> https://youtu.be/Js3hMUsSZ2c <br> https://circleci.com/docs/2.0/enable-checks/ | `.circleci/config.yml` |
Note: the instructions linked above mostly cover how to set up a repository with CI from scratch.
The general idea should be the same for setting up CI on your fork of zstd, but you may have to
follow slightly different steps. In particular, please ignore any instructions related to setting up
config files (since zstd already has configs for each of these services).
## Performance
Performance is extremely important for zstd and we only merge pull requests whose performance
landscape and corresponding trade-offs have been adequately analyzed, reproduced, and presented.
This high bar for performance means that every PR which has the potential to
impact performance takes a very long time for us to properly review. That being said, we
always welcome contributions to improve performance (or worsen performance for the trade-off of
something else). Please keep the following in mind before submitting a performance related PR:
1. Zstd isn't as old as gzip but it has been around for time now and its evolution is
very well documented via past Github issues and pull requests. It may be the case that your
particular performance optimization has already been considered in the past. Please take some
time to search through old issues and pull requests using keywords specific to your
would-be PR. Of course, just because a topic has already been discussed (and perhaps rejected
on some grounds) in the past, doesn't mean it isn't worth bringing up again. But even in that case,
it will be helpful for you to have context from that topic's history before contributing.
2. The distinction between noise and actual performance gains can unfortunately be very subtle
especially when microbenchmarking extremely small wins or losses. The only remedy to getting
something subtle merged is extensive benchmarking. You will be doing us a great favor if you
take the time to run extensive, long-duration, and potentially cross-(os, platform, process, etc)
benchmarks on your end before submitting a PR. Of course, you will not be able to benchmark
your changes on every single processor and os out there (and neither will we) but do that best
you can:) We've added some things to think about when benchmarking below in the Benchmarking
Performance section which might be helpful for you.
3. Optimizing performance for a certain OS, processor vendor, compiler, or network system is a perfectly
legitimate thing to do as long as it does not harm the overall performance health of Zstd.
This is a hard balance to strike but please keep in mind other aspects of Zstd when
submitting changes that are clang-specific, windows-specific, etc.
## Benchmarking Performance
Performance microbenchmarking is a tricky subject but also essential for Zstd. We value empirical
testing over theoretical speculation. This guide it not perfect but for most scenarios, it
is a good place to start.
### Stability
Unfortunately, the most important aspect in being able to benchmark reliably is to have a stable
benchmarking machine. A virtual machine, a machine with shared resources, or your laptop
will typically not be stable enough to obtain reliable benchmark results. If you can get your
hands on a desktop, this is usually a better scenario.
Of course, benchmarking can be done on non-hyper-stable machines as well. You will just have to
do a little more work to ensure that you are in fact measuring the changes you've made not and
noise. Here are some things you can do to make your benchmarks more stable:
1. The most simple thing you can do to drastically improve the stability of your benchmark is
to run it multiple times and then aggregate the results of those runs. As a general rule of
thumb, the smaller the change you are trying to measure, the more samples of benchmark runs
you will have to aggregate over to get reliable results. Here are some additional things to keep in
mind when running multiple trials:
* How you aggregate your samples are important. You might be tempted to use the mean of your
results. While this is certainly going to be a more stable number than a raw single sample
benchmark number, you might have more luck by taking the median. The mean is not robust to
outliers whereas the median is. Better still, you could simply take the fastest speed your
benchmark achieved on each run since that is likely the fastest your process will be
capable of running your code. In our experience, this (aggregating by just taking the sample
with the fastest running time) has been the most stable approach.
* The more samples you have, the more stable your benchmarks should be. You can verify
your improved stability by looking at the size of your confidence intervals as you
increase your sample count. These should get smaller and smaller. Eventually hopefully
smaller than the performance win you are expecting.
* Most processors will take some time to get `hot` when running anything. The observations
you collect during that time period will very different from the true performance number. Having
a very large number of sample will help alleviate this problem slightly but you can also
address is directly by simply not including the first `n` iterations of your benchmark in
your aggregations. You can determine `n` by simply looking at the results from each iteration
and then hand picking a good threshold after which the variance in results seems to stabilize.
2. You cannot really get reliable benchmarks if your host machine is simultaneously running
another cpu/memory-intensive application in the background. If you are running benchmarks on your
personal laptop for instance, you should close all applications (including your code editor and
browser) before running your benchmarks. You might also have invisible background applications
running. You can see what these are by looking at either Activity Monitor on Mac or Task Manager
on Windows. You will get more stable benchmark results of you end those processes as well.
* If you have multiple cores, you can even run your benchmark on a reserved core to prevent
pollution from other OS and user processes. There are a number of ways to do this depending
on your OS:
* On linux boxes, you have use https://github.com/lpechacek/cpuset.
* On Windows, you can "Set Processor Affinity" using https://www.thewindowsclub.com/processor-affinity-windows
* On Mac, you can try to use their dedicated affinity API https://developer.apple.com/library/archive/releasenotes/Performance/RN-AffinityAPI/#//apple_ref/doc/uid/TP40006635-CH1-DontLinkElementID_2
3. To benchmark, you will likely end up writing a separate c/c++ program that will link libzstd.
Dynamically linking your library will introduce some added variation (not a large amount but
definitely some). Statically linking libzstd will be more stable. Static libraries should
be enabled by default when building zstd.
4. Use a profiler with a good high resolution timer. See the section below on profiling for
details on this.
5. Disable frequency scaling, turbo boost and address space randomization (this will vary by OS)
6. Try to avoid storage. On some systems you can use tmpfs. Putting the program, inputs and outputs on
tmpfs avoids touching a real storage system, which can have a pretty big variability.
Also check our LLVM's guide on benchmarking here: https://llvm.org/docs/Benchmarking.html
### Zstd benchmark
The fastest signal you can get regarding your performance changes is via the in-build zstd cli
bench option. You can run Zstd as you typically would for your scenario using some set of options
and then additionally also specify the `-b#` option. Doing this will run our benchmarking pipeline
for that options you have just provided. If you want to look at the internals of how this
benchmarking script works, you can check out programs/benchzstd.c
For example: say you have made a change that you believe improves the speed of zstd level 1. The
very first thing you should use to assess whether you actually achieved any sort of improvement
is `zstd -b`. You might try to do something like this. Note: you can use the `-i` option to
specify a running time for your benchmark in seconds (default is 3 seconds).
Usually, the longer the running time, the more stable your results will be.
```
$ git checkout <commit-before-your-change>
$ make && cp zstd zstd-old
$ git checkout <commit-after-your-change>
$ make && cp zstd zstd-new
$ zstd-old -i5 -b1 <your-test-data>
1<your-test-data> : 8990 -> 3992 (2.252), 302.6 MB/s , 626.4 MB/s
$ zstd-new -i5 -b1 <your-test-data>
1<your-test-data> : 8990 -> 3992 (2.252), 302.8 MB/s , 628.4 MB/s
```
Unless your performance win is large enough to be visible despite the intrinsic noise
on your computer, benchzstd alone will likely not be enough to validate the impact of your
changes. For example, the results of the example above indicate that effectively nothing
changed but there could be a small <3% improvement that the noise on the host machine
obscured. So unless you see a large performance win (10-15% consistently) using just
this method of evaluation will not be sufficient.
### Profiling
There are a number of great profilers out there. We're going to briefly mention how you can
profile your code using `instruments` on mac, `perf` on linux and `visual studio profiler`
on Windows.
Say you have an idea for a change that you think will provide some good performance gains
for level 1 compression on Zstd. Typically this means, you have identified a section of
code that you think can be made to run faster.
The first thing you will want to do is make sure that the piece of code is actually taking up
a notable amount of time to run. It is usually not worth optimizing something which accounts for less than
0.0001% of the total running time. Luckily, there are tools to help with this.
Profilers will let you see how much time your code spends inside a particular function.
If your target code snippet is only part of a function, it might be worth trying to
isolate that snippet by moving it to its own function (this is usually not necessary but
might be).
Most profilers (including the profilers discussed below) will generate a call graph of
functions for you. Your goal will be to find your function of interest in this call graph
and then inspect the time spent inside of it. You might also want to look at the annotated
assembly which most profilers will provide you with.
#### Instruments
We will once again consider the scenario where you think you've identified a piece of code
whose performance can be improved upon. Follow these steps to profile your code using
Instruments.
1. Open Instruments
2. Select `Time Profiler` from the list of standard templates
3. Close all other applications except for your instruments window and your terminal
4. Run your benchmarking script from your terminal window
* You will want a benchmark that runs for at least a few seconds (5 seconds will
usually be long enough). This way the profiler will have something to work with
and you will have ample time to attach your profiler to this process:)
* I will just use benchzstd as my benchmarmking script for this example:
```
$ zstd -b1 -i5 <my-data> # this will run for 5 seconds
```
5. Once you run your benchmarking script, switch back over to instruments and attach your
process to the time profiler. You can do this by:
* Clicking on the `All Processes` drop down in the top left of the toolbar.
* Selecting your process from the dropdown. In my case, it is just going to be labeled
`zstd`
* Hitting the bright red record circle button on the top left of the toolbar
6. You profiler will now start collecting metrics from your benchmarking script. Once
you think you have collected enough samples (usually this is the case after 3 seconds of
recording), stop your profiler.
7. Make sure that in toolbar of the bottom window, `profile` is selected.
8. You should be able to see your call graph.
* If you don't see the call graph or an incomplete call graph, make sure you have compiled
zstd and your benchmarking script using debug flags. On mac and linux, this just means
you will have to supply the `-g` flag alone with your build script. You might also
have to provide the `-fno-omit-frame-pointer` flag
9. Dig down the graph to find your function call and then inspect it by double clicking
the list item. You will be able to see the annotated source code and the assembly side by
side.
#### Perf
This wiki has a pretty detailed tutorial on getting started working with perf so we'll
leave you to check that out of you're getting started:
https://perf.wiki.kernel.org/index.php/Tutorial
Some general notes on perf:
* Use `perf stat -r # <bench-program>` to quickly get some relevant timing and
counter statistics. Perf uses a high resolution timer and this is likely one
of the first things your team will run when assessing your PR.
* Perf has a long list of hardware counters that can be viewed with `perf --list`.
When measuring optimizations, something worth trying is to make sure the hardware
counters you expect to be impacted by your change are in fact being so. For example,
if you expect the L1 cache misses to decrease with your change, you can look at the
counter `L1-dcache-load-misses`
* Perf hardware counters will not work on a virtual machine.
#### Visual Studio
TODO
## Issues
We use GitHub issues to track public bugs. Please ensure your description is
clear and has sufficient instructions to be able to reproduce the issue.
Facebook has a [bounty program](https://www.facebook.com/whitehat/) for the safe
disclosure of security bugs. In those cases, please go through the process
outlined on that page and do not file a public issue.
## Coding Style
It's a pretty long topic, which is difficult to summarize in a single paragraph.
As a rule of thumbs, try to imitate the coding style of
similar lines of codes around your contribution.
The following is a non-exhaustive list of rules employed in zstd code base:
### C90
This code base is following strict C90 standard,
with 2 extensions : 64-bit `long long` types, and variadic macros.
This rule is applied strictly to code within `lib/` and `programs/`.
Sub-project in `contrib/` are allowed to use other conventions.
### C++ direct compatibility : symbol mangling
All public symbol declarations must be wrapped in `extern “C” { … }`,
so that this project can be compiled as C++98 code,
and linked into C++ applications.
### Minimal Frugal
This design requirement is fundamental to preserve the portability of the code base.
#### Dependencies
- Reduce dependencies to the minimum possible level.
Any dependency should be considered “bad” by default,
and only tolerated because it provides a service in a better way than can be achieved locally.
The only external dependencies this repository tolerates are
standard C libraries, and in rare cases, system level headers.
- Within `lib/`, this policy is even more drastic.
The only external dependencies allowed are `<assert.h>`, `<stdlib.h>`, `<string.h>`,
and even then, not directly.
In particular, no function shall ever allocate on heap directly,
and must use instead `ZSTD_malloc()` and equivalent.
Other accepted non-symbol headers are `<stddef.h>` and `<limits.h>`.
- Within the project, there is a strict hierarchy of dependencies that must be respected.
`programs/` is allowed to depend on `lib/`, but only its public API.
Within `lib/`, `lib/common` doesn't depend on any other directory.
`lib/compress` and `lib/decompress` shall not depend on each other.
`lib/dictBuilder` can depend on `lib/common` and `lib/compress`, but not `lib/decompress`.
#### Resources
- Functions in `lib/` must use very little stack space,
several dozens of bytes max.
Everything larger must use the heap allocator,
or require a scratch buffer to be emplaced manually.
### Naming
* All public symbols are prefixed with `ZSTD_`
+ private symbols, with a scope limited to their own unit, are free of this restriction.
However, since `libzstd` source code can be amalgamated,
each symbol name must attempt to be (and remain) unique.
Avoid too generic names that could become ground for future collisions.
This generally implies usage of some form of prefix.
* For symbols (functions and variables), naming convention is `PREFIX_camelCase`.
+ In some advanced cases, one can also find :
- `PREFIX_prefix2_camelCase`
- `PREFIX_camelCase_extendedQualifier`
* Multi-words names generally consist of an action followed by object:
- for example : `ZSTD_createCCtx()`
* Prefer positive actions
- `goBackward` rather than `notGoForward`
* Type names (`struct`, etc.) follow similar convention,
except that they are allowed and even invited to start by an Uppercase letter.
Example : `ZSTD_CCtx`, `ZSTD_CDict`
* Macro names are all Capital letters.
The same composition rules (`PREFIX_NAME_QUALIFIER`) apply.
* File names are all lowercase letters.
The convention is `snake_case`.
File names **must** be unique across the entire code base,
even when they stand in clearly separated directories.
### Qualifiers
* This code base is `const` friendly, if not `const` fanatical.
Any variable that can be `const` (aka. read-only) **must** be `const`.
Any pointer which content will not be modified must be `const`.
This property is then controlled at compiler level.
`const` variables are an important signal to readers that this variable isn't modified.
Conversely, non-const variables are a signal to readers to watch out for modifications later on in the function.
* If a function must be inlined, mention it explicitly,
using project's own portable macros, such as `FORCE_INLINE_ATTR`,
defined in `lib/common/compiler.h`.
### Debugging
* **Assertions** are welcome, and should be used very liberally,
to control any condition the code expects for its correct execution.
These assertion checks will be run in debug builds, and disabled in production.
* For traces, this project provides its own debug macros,
in particular `DEBUGLOG(level, ...)`, defined in `lib/common/debug.h`.
### Code documentation
* Avoid code documentation that merely repeats what the code is already stating.
Whenever applicable, prefer employing the code as the primary way to convey explanations.
Example 1 : `int nbTokens = n;` instead of `int i = n; /* i is a nb of tokens *./`.
Example 2 : `assert(size > 0);` instead of `/* here, size should be positive */`.
* At declaration level, the documentation explains how to use the function or variable
and when applicable why it's needed, of the scenarios where it can be useful.
* At implementation level, the documentation explains the general outline of the algorithm employed,
and when applicable why this specific choice was preferred.
### General layout
* 4 spaces for indentation rather than tabs
* Code documentation shall directly precede function declaration or implementation
* Function implementations and its code documentation should be preceded and followed by an empty line
## License
By contributing to Zstandard, you agree that your contributions will be licensed
under both the [LICENSE](LICENSE) file and the [COPYING](COPYING) file in the root directory of this source tree.

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
anyone to deny you these rights or to ask you to surrender the rights.
These restrictions translate to certain responsibilities for you if you
distribute copies of the software, or if you modify it.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must give the recipients all the rights that
you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
rights.
We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
distribute and/or modify the software.
Also, for each author's protection and ours, we want to make certain
that everyone understands that there is no warranty for this free
software. If the software is modified by someone else and passed on, we
want its recipients to know that what they have is not the original, so
that any problems introduced by others will not reflect on the original
authors' reputations.
Finally, any free program is threatened constantly by software
patents. We wish to avoid the danger that redistributors of a free
program will individually obtain patent licenses, in effect making the
program proprietary. To prevent this, we have made it clear that any
patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
under the terms of this General Public License. The "Program", below,
refers to any such program or work, and a "work based on the Program"
means either the Program or any derivative work under copyright law:
that is to say, a work containing the Program or a portion of it,
either verbatim or with modifications and/or translated into another
language. (Hereinafter, translation is included without limitation in
the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
covered by this License; they are outside its scope. The act of
running the Program is not restricted, and the output from the Program
is covered only if its contents constitute a work based on the
Program (independent of having been made by running the Program).
Whether that is true depends on what the Program does.
1. You may copy and distribute verbatim copies of the Program's
source code as you receive it, in any medium, provided that you
conspicuously and appropriately publish on each copy an appropriate
copyright notice and disclaimer of warranty; keep intact all the
notices that refer to this License and to the absence of any warranty;
and give any other recipients of the Program a copy of this License
along with the Program.
You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
2. You may modify your copy or copies of the Program or any portion
of it, thus forming a work based on the Program, and copy and
distribute such modifications or work under the terms of Section 1
above, provided that you also meet all of these conditions:
a) You must cause the modified files to carry prominent notices
stating that you changed the files and the date of any change.
b) You must cause any work that you distribute or publish, that in
whole or in part contains or is derived from the Program or any
part thereof, to be licensed as a whole at no charge to all third
parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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BSD License
For Zstandard software
Copyright (c) Meta Platforms, Inc. and affiliates. All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name Facebook, nor Meta, nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# You may select, at your option, one of the above-listed licenses.
# ################################################################
# verbose mode (print commands) on V=1 or VERBOSE=1
Q = $(if $(filter 1,$(V) $(VERBOSE)),,@)
PRGDIR = programs
ZSTDDIR = lib
BUILDIR = build
ZWRAPDIR = zlibWrapper
TESTDIR = tests
FUZZDIR = $(TESTDIR)/fuzz
# Define nul output
VOID = /dev/null
# When cross-compiling from linux to windows, you might
# need to specify this as "Windows." Fedora build fails
# without it.
#
# Note: mingw-w64 build from linux to windows does not
# fail on other tested distros (ubuntu, debian) even
# without manually specifying the TARGET_SYSTEM.
TARGET_SYSTEM ?= $(OS)
CP ?= cp
ifneq (,$(filter Windows%,$(TARGET_SYSTEM)))
EXT =.exe
else
EXT =
endif
## default: Build lib-release and zstd-release
.PHONY: default
default: lib-release zstd-release
.PHONY: all
all: allmost examples manual contrib
.PHONY: allmost
allmost: allzstd zlibwrapper
# skip zwrapper, can't build that on alternate architectures without the proper zlib installed
.PHONY: allzstd
allzstd: lib
$(Q)$(MAKE) -C $(PRGDIR) all
$(Q)$(MAKE) -C $(TESTDIR) all
.PHONY: all32
all32:
$(MAKE) -C $(PRGDIR) zstd32
$(MAKE) -C $(TESTDIR) all32
.PHONY: lib lib-release lib-mt lib-nomt
lib lib-release lib-mt lib-nomt:
$(Q)$(MAKE) -C $(ZSTDDIR) $@
.PHONY: zstd zstd-release
zstd zstd-release:
$(Q)$(MAKE) -C $(PRGDIR) $@
$(Q)ln -sf $(PRGDIR)/zstd$(EXT) zstd$(EXT)
.PHONY: zstdmt
zstdmt:
$(Q)$(MAKE) -C $(PRGDIR) $@
$(Q)$(CP) $(PRGDIR)/zstd$(EXT) ./zstdmt$(EXT)
.PHONY: zlibwrapper
zlibwrapper: lib
$(MAKE) -C $(ZWRAPDIR) all
## test: run long-duration tests
.PHONY: test
DEBUGLEVEL ?= 1
test: MOREFLAGS += -g -Werror
test:
DEBUGLEVEL=$(DEBUGLEVEL) MOREFLAGS="$(MOREFLAGS)" $(MAKE) -j -C $(PRGDIR) allVariants
$(MAKE) -C $(TESTDIR) $@
ZSTD=../../programs/zstd $(MAKE) -C doc/educational_decoder $@
## shortest: same as `make check`
.PHONY: shortest
shortest:
$(Q)$(MAKE) -C $(TESTDIR) $@
## check: run basic tests for `zstd` cli
.PHONY: check
check: shortest
.PHONY: automated_benchmarking
automated_benchmarking:
$(MAKE) -C $(TESTDIR) $@
.PHONY: benchmarking
benchmarking: automated_benchmarking
## examples: build all examples in `examples/` directory
.PHONY: examples
examples: lib
$(MAKE) -C examples all
## manual: generate API documentation in html format
.PHONY: manual
manual:
$(MAKE) -C contrib/gen_html $@
## man: generate man page
.PHONY: man
man:
$(MAKE) -C programs $@
## contrib: build all supported projects in `/contrib` directory
.PHONY: contrib
contrib: lib
$(MAKE) -C contrib/pzstd all
$(MAKE) -C contrib/seekable_format/examples all
$(MAKE) -C contrib/seekable_format/tests test
$(MAKE) -C contrib/largeNbDicts all
$(MAKE) -C contrib/externalSequenceProducer all
cd build/single_file_libs/ ; ./build_decoder_test.sh
cd build/single_file_libs/ ; ./build_library_test.sh
.PHONY: cleanTabs
cleanTabs:
cd contrib; ./cleanTabs
.PHONY: clean
clean:
$(Q)$(MAKE) -C $(ZSTDDIR) $@ > $(VOID)
$(Q)$(MAKE) -C $(PRGDIR) $@ > $(VOID)
$(Q)$(MAKE) -C $(TESTDIR) $@ > $(VOID)
$(Q)$(MAKE) -C $(ZWRAPDIR) $@ > $(VOID)
$(Q)$(MAKE) -C examples/ $@ > $(VOID)
$(Q)$(MAKE) -C contrib/gen_html $@ > $(VOID)
$(Q)$(MAKE) -C contrib/pzstd $@ > $(VOID)
$(Q)$(MAKE) -C contrib/seekable_format/examples $@ > $(VOID)
$(Q)$(MAKE) -C contrib/seekable_format/tests $@ > $(VOID)
$(Q)$(MAKE) -C contrib/largeNbDicts $@ > $(VOID)
$(Q)$(MAKE) -C contrib/externalSequenceProducer $@ > $(VOID)
$(Q)$(RM) zstd$(EXT) zstdmt$(EXT) tmp*
$(Q)$(RM) -r lz4
@echo Cleaning completed
#------------------------------------------------------------------------------
# make install is validated only for Linux, macOS, Hurd and some BSD targets
#------------------------------------------------------------------------------
ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD DragonFly NetBSD MSYS_NT Haiku AIX))
HOST_OS = POSIX
MKDIR ?= mkdir -p
HAVE_COLORNEVER = $(shell echo a | egrep --color=never a > /dev/null 2> /dev/null && echo 1 || echo 0)
EGREP_OPTIONS ?=
ifeq ($(HAVE_COLORNEVER), 1)
EGREP_OPTIONS += --color=never
endif
EGREP = egrep $(EGREP_OPTIONS)
# Print a two column output of targets and their description. To add a target description, put a
# comment in the Makefile with the format "## <TARGET>: <DESCRIPTION>". For example:
#
## list: Print all targets and their descriptions (if provided)
.PHONY: list
list:
$(Q)TARGETS=$$($(MAKE) -pRrq -f $(lastword $(MAKEFILE_LIST)) : 2>/dev/null \
| awk -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' \
| $(EGREP) -v -e '^[^[:alnum:]]' | sort); \
{ \
printf "Target Name\tDescription\n"; \
printf "%0.s-" {1..16}; printf "\t"; printf "%0.s-" {1..40}; printf "\n"; \
for target in $$TARGETS; do \
line=$$($(EGREP) "^##[[:space:]]+$$target:" $(lastword $(MAKEFILE_LIST))); \
description=$$(echo $$line | awk '{i=index($$0,":"); print substr($$0,i+1)}' | xargs); \
printf "$$target\t$$description\n"; \
done \
} | column -t -s $$'\t'
.PHONY: install armtest usan asan uasan msan asan32
install:
$(Q)$(MAKE) -C $(ZSTDDIR) $@
$(Q)$(MAKE) -C $(PRGDIR) $@
.PHONY: uninstall
uninstall:
$(Q)$(MAKE) -C $(ZSTDDIR) $@
$(Q)$(MAKE) -C $(PRGDIR) $@
.PHONY: travis-install
travis-install:
$(MAKE) install PREFIX=~/install_test_dir
.PHONY: gcc5build gcc6build gcc7build clangbuild m32build armbuild aarch64build ppcbuild ppc64build
gcc5build: clean
gcc-5 -v
CC=gcc-5 $(MAKE) all MOREFLAGS="-Werror $(MOREFLAGS)"
gcc6build: clean
gcc-6 -v
CC=gcc-6 $(MAKE) all MOREFLAGS="-Werror $(MOREFLAGS)"
gcc7build: clean
gcc-7 -v
CC=gcc-7 $(MAKE) all MOREFLAGS="-Werror $(MOREFLAGS)"
clangbuild: clean
clang -v
CXX=clang++ CC=clang CFLAGS="-Werror -Wconversion -Wno-sign-conversion -Wdocumentation" $(MAKE) all
m32build: clean
gcc -v
$(MAKE) all32
armbuild: clean
CC=arm-linux-gnueabi-gcc CFLAGS="-Werror" $(MAKE) allzstd
aarch64build: clean
CC=aarch64-linux-gnu-gcc CFLAGS="-Werror -O0" $(MAKE) allzstd
ppcbuild: clean
CC=powerpc-linux-gnu-gcc CFLAGS="-m32 -Wno-attributes -Werror" $(MAKE) -j allzstd
ppc64build: clean
CC=powerpc-linux-gnu-gcc CFLAGS="-m64 -Werror" $(MAKE) -j allzstd
.PHONY: armfuzz aarch64fuzz ppcfuzz ppc64fuzz
armfuzz: clean
CC=arm-linux-gnueabi-gcc QEMU_SYS=qemu-arm-static MOREFLAGS="-static $(MOREFLAGS)" FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)" $(MAKE) -C $(TESTDIR) fuzztest
aarch64fuzz: clean
ld -v
CC=aarch64-linux-gnu-gcc QEMU_SYS=qemu-aarch64-static MOREFLAGS="-static $(MOREFLAGS)" FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)" $(MAKE) -C $(TESTDIR) fuzztest
ppcfuzz: clean
CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc-static MOREFLAGS="-static $(MOREFLAGS)" FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)" $(MAKE) -C $(TESTDIR) fuzztest
ppc64fuzz: clean
CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc64-static MOREFLAGS="-m64 -static $(MOREFLAGS)" FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)" $(MAKE) -C $(TESTDIR) fuzztest
.PHONY: cxxtest gcc5test gcc6test armtest aarch64test ppctest ppc64test
cxxtest: CXXFLAGS += -Wall -Wextra -Wundef -Wshadow -Wcast-align -Werror
cxxtest: clean
$(MAKE) -C $(PRGDIR) all CC="$(CXX) -Wno-deprecated" CFLAGS="$(CXXFLAGS)" # adding -Wno-deprecated to avoid clang++ warning on dealing with C files directly
gcc5test: clean
gcc-5 -v
$(MAKE) all CC=gcc-5 MOREFLAGS="-Werror $(MOREFLAGS)"
gcc6test: clean
gcc-6 -v
$(MAKE) all CC=gcc-6 MOREFLAGS="-Werror $(MOREFLAGS)"
armtest: clean
$(MAKE) -C $(TESTDIR) datagen # use native, faster
$(MAKE) -C $(TESTDIR) test CC=arm-linux-gnueabi-gcc QEMU_SYS=qemu-arm-static ZSTDRTTEST= MOREFLAGS="-Werror -static $(MOREFLAGS)" FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)"
aarch64test:
$(MAKE) -C $(TESTDIR) datagen # use native, faster
$(MAKE) -C $(TESTDIR) test CC=aarch64-linux-gnu-gcc QEMU_SYS=qemu-aarch64-static ZSTDRTTEST= MOREFLAGS="-Werror -static $(MOREFLAGS)" FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)"
ppctest: clean
$(MAKE) -C $(TESTDIR) datagen # use native, faster
$(MAKE) -C $(TESTDIR) test CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc-static ZSTDRTTEST= MOREFLAGS="-Werror -Wno-attributes -static $(MOREFLAGS)" FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)"
ppc64test: clean
$(MAKE) -C $(TESTDIR) datagen # use native, faster
$(MAKE) -C $(TESTDIR) test CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc64-static ZSTDRTTEST= MOREFLAGS="-m64 -static $(MOREFLAGS)" FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)"
.PHONY: arm-ppc-compilation
arm-ppc-compilation:
$(MAKE) -C $(PRGDIR) clean zstd CC=arm-linux-gnueabi-gcc QEMU_SYS=qemu-arm-static ZSTDRTTEST= MOREFLAGS="-Werror -static $(MOREFLAGS)"
$(MAKE) -C $(PRGDIR) clean zstd CC=aarch64-linux-gnu-gcc QEMU_SYS=qemu-aarch64-static ZSTDRTTEST= MOREFLAGS="-Werror -static $(MOREFLAGS)"
$(MAKE) -C $(PRGDIR) clean zstd CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc-static ZSTDRTTEST= MOREFLAGS="-Werror -Wno-attributes -static $(MOREFLAGS)"
$(MAKE) -C $(PRGDIR) clean zstd CC=powerpc-linux-gnu-gcc QEMU_SYS=qemu-ppc64-static ZSTDRTTEST= MOREFLAGS="-m64 -static $(MOREFLAGS)"
regressiontest:
$(MAKE) -C $(FUZZDIR) regressiontest
uasanregressiontest:
$(MAKE) -C $(FUZZDIR) regressiontest CC=clang CXX=clang++ CFLAGS="-O3 -fsanitize=address,undefined" CXXFLAGS="-O3 -fsanitize=address,undefined"
msanregressiontest:
$(MAKE) -C $(FUZZDIR) regressiontest CC=clang CXX=clang++ CFLAGS="-O3 -fsanitize=memory" CXXFLAGS="-O3 -fsanitize=memory"
update_regressionResults : REGRESS_RESULTS_DIR := /tmp/regress_results_dir/
update_regressionResults:
$(MAKE) -C programs zstd
$(MAKE) -C tests/regression test
$(RM) -rf $(REGRESS_RESULTS_DIR)
$(MKDIR) $(REGRESS_RESULTS_DIR)
./tests/regression/test \
--cache tests/regression/cache \
--output $(REGRESS_RESULTS_DIR)/results.csv \
--zstd programs/zstd
echo "Showing results differences"
! diff tests/regression/results.csv $(REGRESS_RESULTS_DIR)/results.csv
echo "Updating results.csv"
$(CP) $(REGRESS_RESULTS_DIR)/results.csv tests/regression/results.csv
# run UBsan with -fsanitize-recover=pointer-overflow
# this only works with recent compilers such as gcc 8+
usan: clean
$(MAKE) test CC=clang MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize-recover=pointer-overflow -fsanitize=undefined -Werror $(MOREFLAGS)"
asan: clean
$(MAKE) test CC=clang MOREFLAGS="-g -fsanitize=address -Werror $(MOREFLAGS)"
asan-%: clean
LDFLAGS=-fuse-ld=gold MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize=address -Werror $(MOREFLAGS)" $(MAKE) -C $(TESTDIR) $*
msan: clean
$(MAKE) test CC=clang MOREFLAGS="-g -fsanitize=memory -fno-omit-frame-pointer -Werror $(MOREFLAGS)" HAVE_LZMA=0 # datagen.c fails this test for no obvious reason
msan-%: clean
LDFLAGS=-fuse-ld=gold MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize=memory -fno-omit-frame-pointer -Werror $(MOREFLAGS)" FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)" $(MAKE) -C $(TESTDIR) HAVE_LZMA=0 $*
asan32: clean
$(MAKE) -C $(TESTDIR) test32 CC=clang MOREFLAGS="-g -fsanitize=address $(MOREFLAGS)"
uasan: clean
$(MAKE) test CC=clang MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize-recover=pointer-overflow -fsanitize=address,undefined -Werror $(MOREFLAGS)"
uasan-%: clean
LDFLAGS=-fuse-ld=gold MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize-recover=pointer-overflow -fsanitize=address,undefined -Werror $(MOREFLAGS)" $(MAKE) -C $(TESTDIR) $*
tsan-%: clean
LDFLAGS=-fuse-ld=gold MOREFLAGS="-g -fno-sanitize-recover=all -fsanitize=thread -Werror $(MOREFLAGS)" $(MAKE) -C $(TESTDIR) $* FUZZER_FLAGS="--no-big-tests $(FUZZER_FLAGS)"
.PHONY: apt-install
apt-install:
# TODO: uncomment once issue 3011 is resolved and remove hack from Github Actions .yml
# sudo apt-get update
sudo apt-get -yq --no-install-suggests --no-install-recommends --force-yes install $(APT_PACKAGES)
.PHONY: apt-add-repo
apt-add-repo:
sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
sudo apt-get update -y -qq
.PHONY: ppcinstall arminstall valgrindinstall libc6install gcc6install gcc7install gcc8install gpp6install clang38install lz4install
ppcinstall:
APT_PACKAGES="qemu-system-ppc qemu-user-static gcc-powerpc-linux-gnu" $(MAKE) apt-install
arminstall:
APT_PACKAGES="qemu-system-arm qemu-user-static gcc-arm-linux-gnueabi libc6-dev-armel-cross gcc-aarch64-linux-gnu libc6-dev-arm64-cross" $(MAKE) apt-install
valgrindinstall:
APT_PACKAGES="valgrind" $(MAKE) apt-install
libc6install:
APT_PACKAGES="libc6-dev-i386 gcc-multilib" $(MAKE) apt-install
gcc6install: apt-add-repo
APT_PACKAGES="libc6-dev-i386 gcc-multilib gcc-6 gcc-6-multilib" $(MAKE) apt-install
gcc7install: apt-add-repo
APT_PACKAGES="libc6-dev-i386 gcc-multilib gcc-7 gcc-7-multilib" $(MAKE) apt-install
gcc8install: apt-add-repo
APT_PACKAGES="libc6-dev-i386 gcc-multilib gcc-8 gcc-8-multilib" $(MAKE) apt-install
gpp6install: apt-add-repo
APT_PACKAGES="libc6-dev-i386 g++-multilib gcc-6 g++-6 g++-6-multilib" $(MAKE) apt-install
clang38install:
APT_PACKAGES="clang-3.8" $(MAKE) apt-install
# Ubuntu 14.04 ships a too-old lz4
lz4install:
[ -e lz4 ] || git clone https://github.com/lz4/lz4 && sudo $(MAKE) -C lz4 install
endif
CMAKE_PARAMS = -DZSTD_BUILD_CONTRIB:BOOL=ON -DZSTD_BUILD_STATIC:BOOL=ON -DZSTD_BUILD_TESTS:BOOL=ON -DZSTD_ZLIB_SUPPORT:BOOL=ON -DZSTD_LZMA_SUPPORT:BOOL=ON -DCMAKE_BUILD_TYPE=Release
ifneq (,$(filter MSYS%,$(shell uname)))
HOST_OS = MSYS
CMAKE_PARAMS = -G"MSYS Makefiles" -DCMAKE_BUILD_TYPE=Debug -DZSTD_MULTITHREAD_SUPPORT:BOOL=OFF -DZSTD_BUILD_STATIC:BOOL=ON -DZSTD_BUILD_TESTS:BOOL=ON
endif
#------------------------------------------------------------------------
# target specific tests
#------------------------------------------------------------------------
ifneq (,$(filter $(HOST_OS),MSYS POSIX))
.PHONY: cmakebuild c89build gnu90build c99build gnu99build c11build bmix64build bmix32build bmi32build staticAnalyze
cmakebuild:
cmake --version
$(RM) -r $(BUILDIR)/cmake/build
$(MKDIR) $(BUILDIR)/cmake/build
cd $(BUILDIR)/cmake/build; cmake -DCMAKE_INSTALL_PREFIX:PATH=~/install_test_dir $(CMAKE_PARAMS) ..
$(MAKE) -C $(BUILDIR)/cmake/build -j4;
$(MAKE) -C $(BUILDIR)/cmake/build install;
$(MAKE) -C $(BUILDIR)/cmake/build uninstall;
cd $(BUILDIR)/cmake/build; ctest -V -L Medium
c89build: clean
$(CC) -v
CFLAGS="-std=c89 -Werror -Wno-attributes -Wpedantic -Wno-long-long -Wno-variadic-macros -O0" $(MAKE) lib zstd
gnu90build: clean
$(CC) -v
CFLAGS="-std=gnu90 -Werror -O0" $(MAKE) allmost
c99build: clean
$(CC) -v
CFLAGS="-std=c99 -Werror -O0" $(MAKE) allmost
gnu99build: clean
$(CC) -v
CFLAGS="-std=gnu99 -Werror -O0" $(MAKE) allmost
c11build: clean
$(CC) -v
CFLAGS="-std=c11 -Werror -O0" $(MAKE) allmost
bmix64build: clean
$(CC) -v
CFLAGS="-O3 -mbmi -Werror" $(MAKE) -C $(TESTDIR) test
bmix32build: clean
$(CC) -v
CFLAGS="-O3 -mbmi -mx32 -Werror" $(MAKE) -C $(TESTDIR) test
bmi32build: clean
$(CC) -v
CFLAGS="-O3 -mbmi -m32 -Werror" $(MAKE) -C $(TESTDIR) test
# static analyzer test uses clang's scan-build
# does not analyze zlibWrapper, due to detected issues in zlib source code
staticAnalyze: SCANBUILD ?= scan-build
staticAnalyze:
$(CC) -v
CC=$(CC) CPPFLAGS=-g $(SCANBUILD) --status-bugs -v $(MAKE) zstd
endif

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// swift-tools-version:5.0
// The swift-tools-version declares the minimum version of Swift required to build this package.
import PackageDescription
let package = Package(
name: "zstd",
platforms: [
.macOS(.v10_10), .iOS(.v9), .tvOS(.v9)
],
products: [
// Products define the executables and libraries a package produces, and make them visible to other packages.
.library(
name: "libzstd",
targets: [ "libzstd" ])
],
dependencies: [
// Dependencies declare other packages that this package depends on.
// .package(url: /* package url */, from: "1.0.0"),
],
targets: [
// Targets are the basic building blocks of a package. A target can define a module or a test suite.
// Targets can depend on other targets in this package, and on products in packages this package depends on.
.target(
name: "libzstd",
path: "lib",
sources: [ "common", "compress", "decompress", "dictBuilder" ],
publicHeadersPath: ".",
cSettings: [
.headerSearchPath(".")
])
],
swiftLanguageVersions: [.v5],
cLanguageStandard: .gnu11,
cxxLanguageStandard: .gnucxx14
)

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<p align="center"><img src="https://raw.githubusercontent.com/facebook/zstd/dev/doc/images/zstd_logo86.png" alt="Zstandard"></p>
__Zstandard__, or `zstd` as short version, is a fast lossless compression algorithm,
targeting real-time compression scenarios at zlib-level and better compression ratios.
It's backed by a very fast entropy stage, provided by [Huff0 and FSE library](https://github.com/Cyan4973/FiniteStateEntropy).
Zstandard's format is stable and documented in [RFC8878](https://datatracker.ietf.org/doc/html/rfc8878). Multiple independent implementations are already available.
This repository represents the reference implementation, provided as an open-source dual [BSD](LICENSE) and [GPLv2](COPYING) licensed **C** library,
and a command line utility producing and decoding `.zst`, `.gz`, `.xz` and `.lz4` files.
Should your project require another programming language,
a list of known ports and bindings is provided on [Zstandard homepage](https://facebook.github.io/zstd/#other-languages).
**Development branch status:**
[![Build Status][travisDevBadge]][travisLink]
[![Build status][CircleDevBadge]][CircleLink]
[![Build status][CirrusDevBadge]][CirrusLink]
[![Fuzzing Status][OSSFuzzBadge]][OSSFuzzLink]
[travisDevBadge]: https://api.travis-ci.com/facebook/zstd.svg?branch=dev "Continuous Integration test suite"
[travisLink]: https://travis-ci.com/facebook/zstd
[CircleDevBadge]: https://circleci.com/gh/facebook/zstd/tree/dev.svg?style=shield "Short test suite"
[CircleLink]: https://circleci.com/gh/facebook/zstd
[CirrusDevBadge]: https://api.cirrus-ci.com/github/facebook/zstd.svg?branch=dev
[CirrusLink]: https://cirrus-ci.com/github/facebook/zstd
[OSSFuzzBadge]: https://oss-fuzz-build-logs.storage.googleapis.com/badges/zstd.svg
[OSSFuzzLink]: https://bugs.chromium.org/p/oss-fuzz/issues/list?sort=-opened&can=1&q=proj:zstd
## Benchmarks
For reference, several fast compression algorithms were tested and compared
on a desktop running Ubuntu 20.04 (`Linux 5.11.0-41-generic`),
with a Core i7-9700K CPU @ 4.9GHz,
using [lzbench], an open-source in-memory benchmark by @inikep
compiled with [gcc] 9.3.0,
on the [Silesia compression corpus].
[lzbench]: https://github.com/inikep/lzbench
[Silesia compression corpus]: https://sun.aei.polsl.pl//~sdeor/index.php?page=silesia
[gcc]: https://gcc.gnu.org/
| Compressor name | Ratio | Compression| Decompress.|
| --------------- | ------| -----------| ---------- |
| **zstd 1.5.1 -1** | 2.887 | 530 MB/s | 1700 MB/s |
| [zlib] 1.2.11 -1 | 2.743 | 95 MB/s | 400 MB/s |
| brotli 1.0.9 -0 | 2.702 | 395 MB/s | 450 MB/s |
| **zstd 1.5.1 --fast=1** | 2.437 | 600 MB/s | 2150 MB/s |
| **zstd 1.5.1 --fast=3** | 2.239 | 670 MB/s | 2250 MB/s |
| quicklz 1.5.0 -1 | 2.238 | 540 MB/s | 760 MB/s |
| **zstd 1.5.1 --fast=4** | 2.148 | 710 MB/s | 2300 MB/s |
| lzo1x 2.10 -1 | 2.106 | 660 MB/s | 845 MB/s |
| [lz4] 1.9.3 | 2.101 | 740 MB/s | 4500 MB/s |
| lzf 3.6 -1 | 2.077 | 410 MB/s | 830 MB/s |
| snappy 1.1.9 | 2.073 | 550 MB/s | 1750 MB/s |
[zlib]: https://www.zlib.net/
[lz4]: https://lz4.github.io/lz4/
The negative compression levels, specified with `--fast=#`,
offer faster compression and decompression speed
at the cost of compression ratio (compared to level 1).
Zstd can also offer stronger compression ratios at the cost of compression speed.
Speed vs Compression trade-off is configurable by small increments.
Decompression speed is preserved and remains roughly the same at all settings,
a property shared by most LZ compression algorithms, such as [zlib] or lzma.
The following tests were run
on a server running Linux Debian (`Linux version 4.14.0-3-amd64`)
with a Core i7-6700K CPU @ 4.0GHz,
using [lzbench], an open-source in-memory benchmark by @inikep
compiled with [gcc] 7.3.0,
on the [Silesia compression corpus].
Compression Speed vs Ratio | Decompression Speed
---------------------------|--------------------
![Compression Speed vs Ratio](doc/images/CSpeed2.png "Compression Speed vs Ratio") | ![Decompression Speed](doc/images/DSpeed3.png "Decompression Speed")
A few other algorithms can produce higher compression ratios at slower speeds, falling outside of the graph.
For a larger picture including slow modes, [click on this link](doc/images/DCspeed5.png).
## The case for Small Data compression
Previous charts provide results applicable to typical file and stream scenarios (several MB). Small data comes with different perspectives.
The smaller the amount of data to compress, the more difficult it is to compress. This problem is common to all compression algorithms, and reason is, compression algorithms learn from past data how to compress future data. But at the beginning of a new data set, there is no "past" to build upon.
To solve this situation, Zstd offers a __training mode__, which can be used to tune the algorithm for a selected type of data.
Training Zstandard is achieved by providing it with a few samples (one file per sample). The result of this training is stored in a file called "dictionary", which must be loaded before compression and decompression.
Using this dictionary, the compression ratio achievable on small data improves dramatically.
The following example uses the `github-users` [sample set](https://github.com/facebook/zstd/releases/tag/v1.1.3), created from [github public API](https://developer.github.com/v3/users/#get-all-users).
It consists of roughly 10K records weighing about 1KB each.
Compression Ratio | Compression Speed | Decompression Speed
------------------|-------------------|--------------------
![Compression Ratio](doc/images/dict-cr.png "Compression Ratio") | ![Compression Speed](doc/images/dict-cs.png "Compression Speed") | ![Decompression Speed](doc/images/dict-ds.png "Decompression Speed")
These compression gains are achieved while simultaneously providing _faster_ compression and decompression speeds.
Training works if there is some correlation in a family of small data samples. The more data-specific a dictionary is, the more efficient it is (there is no _universal dictionary_).
Hence, deploying one dictionary per type of data will provide the greatest benefits.
Dictionary gains are mostly effective in the first few KB. Then, the compression algorithm will gradually use previously decoded content to better compress the rest of the file.
### Dictionary compression How To:
1. Create the dictionary
`zstd --train FullPathToTrainingSet/* -o dictionaryName`
2. Compress with dictionary
`zstd -D dictionaryName FILE`
3. Decompress with dictionary
`zstd -D dictionaryName --decompress FILE.zst`
## Build instructions
`make` is the officially maintained build system of this project.
All other build systems are "compatible" and 3rd-party maintained,
they may feature small differences in advanced options.
When your system allows it, prefer using `make` to build `zstd` and `libzstd`.
### Makefile
If your system is compatible with standard `make` (or `gmake`),
invoking `make` in root directory will generate `zstd` cli in root directory.
It will also create `libzstd` into `lib/`.
Other available options include:
- `make install` : create and install zstd cli, library and man pages
- `make check` : create and run `zstd`, test its behavior on local platform
The `Makefile` follows the [GNU Standard Makefile conventions](https://www.gnu.org/prep/standards/html_node/Makefile-Conventions.html),
allowing staged install, standard flags, directory variables and command variables.
For advanced use cases, specialized compilation flags which control binary generation
are documented in [`lib/README.md`](lib/README.md#modular-build) for the `libzstd` library
and in [`programs/README.md`](programs/README.md#compilation-variables) for the `zstd` CLI.
### cmake
A `cmake` project generator is provided within `build/cmake`.
It can generate Makefiles or other build scripts
to create `zstd` binary, and `libzstd` dynamic and static libraries.
By default, `CMAKE_BUILD_TYPE` is set to `Release`.
#### Support for Fat (Universal2) Output
`zstd` can be built and installed with support for both Apple Silicon (M1/M2) as well as Intel by using CMake's Universal2 support.
To perform a Fat/Universal2 build and install use the following commands:
```bash
cmake -B build-cmake-debug -S build/cmake -G Ninja -DCMAKE_OSX_ARCHITECTURES="x86_64;x86_64h;arm64"
cd build-cmake-debug
ninja
sudo ninja install
```
### Meson
A Meson project is provided within [`build/meson`](build/meson). Follow
build instructions in that directory.
You can also take a look at [`.travis.yml`](.travis.yml) file for an
example about how Meson is used to build this project.
Note that default build type is **release**.
### VCPKG
You can build and install zstd [vcpkg](https://github.com/Microsoft/vcpkg/) dependency manager:
git clone https://github.com/Microsoft/vcpkg.git
cd vcpkg
./bootstrap-vcpkg.sh
./vcpkg integrate install
./vcpkg install zstd
The zstd port in vcpkg is kept up to date by Microsoft team members and community contributors.
If the version is out of date, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.
### Visual Studio (Windows)
Going into `build` directory, you will find additional possibilities:
- Projects for Visual Studio 2005, 2008 and 2010.
+ VS2010 project is compatible with VS2012, VS2013, VS2015 and VS2017.
- Automated build scripts for Visual compiler by [@KrzysFR](https://github.com/KrzysFR), in `build/VS_scripts`,
which will build `zstd` cli and `libzstd` library without any need to open Visual Studio solution.
### Buck
You can build the zstd binary via buck by executing: `buck build programs:zstd` from the root of the repo.
The output binary will be in `buck-out/gen/programs/`.
## Testing
You can run quick local smoke tests by running `make check`.
If you can't use `make`, execute the `playTest.sh` script from the `src/tests` directory.
Two env variables `$ZSTD_BIN` and `$DATAGEN_BIN` are needed for the test script to locate the `zstd` and `datagen` binary.
For information on CI testing, please refer to `TESTING.md`.
## Status
Zstandard is currently deployed within Facebook and many other large cloud infrastructures.
It is run continuously to compress large amounts of data in multiple formats and use cases.
Zstandard is considered safe for production environments.
## License
Zstandard is dual-licensed under [BSD](LICENSE) and [GPLv2](COPYING).
## Contributing
The `dev` branch is the one where all contributions are merged before reaching `release`.
If you plan to propose a patch, please commit into the `dev` branch, or its own feature branch.
Direct commit to `release` are not permitted.
For more information, please read [CONTRIBUTING](CONTRIBUTING.md).

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Testing
=======
Zstandard CI testing is split up into three sections:
short, medium, and long tests.
Short Tests
-----------
Short tests run on CircleCI for new commits on every branch and pull request.
They consist of the following tests:
- Compilation on all supported targets (x86, x86_64, ARM, AArch64, PowerPC, and PowerPC64)
- Compilation on various versions of gcc, clang, and g++
- `tests/playTests.sh` on x86_64, without the tests on long data (CLI tests)
- Small tests (`tests/legacy.c`, `tests/longmatch.c`) on x64_64
Medium Tests
------------
Medium tests run on every commit and pull request to `dev` branch, on TravisCI.
They consist of the following tests:
- The following tests run with UBsan and Asan on x86_64 and x86, as well as with
Msan on x86_64
- `tests/playTests.sh --test-large-data`
- Fuzzer tests: `tests/fuzzer.c`, `tests/zstreamtest.c`, and `tests/decodecorpus.c`
- `tests/zstreamtest.c` under Tsan (streaming mode, including multithreaded mode)
- Valgrind Test (`make -C tests test-valgrind`) (testing CLI and fuzzer under `valgrind`)
- Fuzzer tests (see above) on ARM, AArch64, PowerPC, and PowerPC64
Long Tests
----------
Long tests run on all commits to `release` branch,
and once a day on the current version of `dev` branch,
on TravisCI.
They consist of the following tests:
- Entire test suite (including fuzzers and some other specialized tests) on:
- x86_64 and x86 with UBsan and Asan
- x86_64 with Msan
- ARM, AArch64, PowerPC, and PowerPC64
- Streaming mode fuzzer with Tsan (for the `zstdmt` testing)
- ZlibWrapper tests, including under valgrind
- Versions test (ensuring `zstd` can decode files from all previous versions)
- `pzstd` with asan and tsan, as well as in 32-bits mode
- Testing `zstd` with legacy mode off
- Entire test suite and make install on macOS

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# Following tests are run _only_ on `release` branch
# and on selected feature branch named `appveyorTest` or `visual*`
-
version: 1.0.{build}
branches:
only:
- release
- master
- /appveyor*/
- /visual*/
environment:
matrix:
- COMPILER: "gcc"
HOST: "mingw"
PLATFORM: "x64"
SCRIPT: "make allzstd MOREFLAGS=-static"
ARTIFACT: "true"
BUILD: "true"
- COMPILER: "gcc"
HOST: "mingw"
PLATFORM: "x86"
SCRIPT: "make allzstd MOREFLAGS=-static"
ARTIFACT: "true"
BUILD: "true"
- COMPILER: "clang-cl"
HOST: "cmake-visual"
PLATFORM: "x64"
CONFIGURATION: "Release"
CMAKE_GENERATOR: "Visual Studio 15 2017"
CMAKE_GENERATOR_PLATFORM: "x64"
CMAKE_GENERATOR_TOOLSET: "LLVM"
APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2017"
install:
- ECHO Installing %COMPILER% %PLATFORM% %CONFIGURATION%
- SET PATH_ORIGINAL=%PATH%
- if [%HOST%]==[mingw] (
SET "PATH_MINGW32=C:\mingw-w64\i686-6.3.0-posix-dwarf-rt_v5-rev1\mingw32\bin" &&
SET "PATH_MINGW64=C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin" &&
COPY C:\msys64\usr\bin\make.exe C:\mingw-w64\i686-6.3.0-posix-dwarf-rt_v5-rev1\mingw32\bin\make.exe &&
COPY C:\msys64\usr\bin\make.exe C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin\make.exe
)
- IF [%HOST%]==[visual] IF [%PLATFORM%]==[x64] (
SET ADDITIONALPARAM=/p:LibraryPath="C:\Program Files\Microsoft SDKs\Windows\v7.1\lib\x64;c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\lib\amd64;C:\Program Files (x86)\Microsoft Visual Studio 10.0\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\lib\amd64;"
)
build_script:
- if [%HOST%]==[mingw] (
( if [%PLATFORM%]==[x64] (
SET "PATH=%PATH_MINGW64%;%PATH_ORIGINAL%"
) else if [%PLATFORM%]==[x86] (
SET "PATH=%PATH_MINGW32%;%PATH_ORIGINAL%"
) )
)
- if [%HOST%]==[mingw] if [%BUILD%]==[true] (
make -v &&
sh -c "%COMPILER% -v" &&
ECHO Building zlib to static link &&
SET "CC=%COMPILER%" &&
sh -c "cd .. && git clone --depth 1 --branch v1.2.11 https://github.com/madler/zlib" &&
sh -c "cd ../zlib && make -f win32/Makefile.gcc libz.a"
ECHO Building zstd &&
SET "CPPFLAGS=-I../../zlib" &&
SET "LDFLAGS=../../zlib/libz.a" &&
sh -c "%SCRIPT%" &&
( if [%COMPILER%]==[gcc] if [%ARTIFACT%]==[true]
ECHO Creating artifacts &&
ECHO %cd% &&
lib\dll\example\build_package.bat &&
make -C programs DEBUGFLAGS= clean zstd &&
cd programs\ && 7z a -tzip -mx9 zstd-win-binary-%PLATFORM%.zip zstd.exe &&
appveyor PushArtifact zstd-win-binary-%PLATFORM%.zip &&
cp zstd.exe ..\bin\zstd.exe &&
git clone --depth 1 --branch release https://github.com/facebook/zstd &&
cd zstd &&
git archive --format=tar release -o zstd-src.tar &&
..\zstd -19 zstd-src.tar &&
appveyor PushArtifact zstd-src.tar.zst &&
certUtil -hashfile zstd-src.tar.zst SHA256 > zstd-src.tar.zst.sha256.sig &&
appveyor PushArtifact zstd-src.tar.zst.sha256.sig &&
cd ..\..\bin\ &&
7z a -tzip -mx9 zstd-win-release-%PLATFORM%.zip * &&
appveyor PushArtifact zstd-win-release-%PLATFORM%.zip
)
)
- if [%HOST%]==[cmake-visual] (
ECHO *** &&
ECHO *** Building %CMAKE_GENERATOR% ^(%CMAKE_GENERATOR_TOOLSET%^) %PLATFORM%\%CONFIGURATION% &&
PUSHD build\cmake &&
cmake -DBUILD_TESTING=ON . &&
cmake --build . --config %CONFIGURATION% -j4 &&
POPD &&
ECHO ***
)
test_script:
- ECHO Testing %COMPILER% %PLATFORM% %CONFIGURATION%
- SET "CC=gcc"
- SET "CXX=g++"
- if [%TEST%]==[cmake] (
mkdir build\cmake\build &&
cd build\cmake\build &&
SET FUZZERTEST=-T2mn &&
SET ZSTREAM_TESTTIME=-T2mn &&
cmake -G "Visual Studio 14 2015 Win64" .. &&
cd ..\..\.. &&
make clean
)
# The following tests are for regular pushes
# into `dev` or some feature branch
# There run less tests, for shorter feedback loop
-
version: 1.0.{build}
environment:
matrix:
- COMPILER: "visual"
HOST: "visual"
PLATFORM: "x64"
CONFIGURATION: "Debug"
- COMPILER: "visual"
HOST: "visual"
PLATFORM: "Win32"
CONFIGURATION: "Debug"
- COMPILER: "visual"
HOST: "visual"
PLATFORM: "x64"
CONFIGURATION: "Release"
- COMPILER: "visual"
HOST: "visual"
PLATFORM: "Win32"
CONFIGURATION: "Release"
- COMPILER: "gcc"
HOST: "cygwin"
PLATFORM: "x64"
- COMPILER: "clang-cl"
HOST: "cmake-visual"
PLATFORM: "x64"
CONFIGURATION: "Release"
CMAKE_GENERATOR: "Visual Studio 15 2017"
CMAKE_GENERATOR_PLATFORM: "x64"
CMAKE_GENERATOR_TOOLSET: "LLVM"
APPVEYOR_BUILD_WORKER_IMAGE: "Visual Studio 2017"
install:
- ECHO Installing %COMPILER% %PLATFORM% %CONFIGURATION%
- SET PATH_ORIGINAL=%PATH%
- if [%HOST%]==[cygwin] (
ECHO Installing Cygwin Packages &&
C:\cygwin64\setup-x86_64.exe -qnNdO -R "C:\cygwin64" -g -P ^
gcc,^
cmake,^
make
)
- IF [%HOST%]==[visual] IF [%PLATFORM%]==[x64] (
SET ADDITIONALPARAM=/p:LibraryPath="C:\Program Files\Microsoft SDKs\Windows\v7.1\lib\x64;c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\lib\amd64;C:\Program Files (x86)\Microsoft Visual Studio 10.0\;C:\Program Files (x86)\Microsoft Visual Studio 10.0\lib\amd64;"
)
build_script:
- ECHO Building %COMPILER% %PLATFORM% %CONFIGURATION%
- if [%HOST%]==[cygwin] (
set CHERE_INVOKING=yes &&
set CC=%COMPILER% &&
C:\cygwin64\bin\bash --login -c "
set -e;
cd build/cmake;
CFLAGS='-Werror' cmake -G 'Unix Makefiles' -DCMAKE_BUILD_TYPE=Debug -DZSTD_BUILD_TESTS:BOOL=ON -DZSTD_FUZZER_FLAGS=-T20s -DZSTD_ZSTREAM_FLAGS=-T20s -DZSTD_FULLBENCH_FLAGS=-i0 .;
make VERBOSE=1 -j;
ctest -V -L Medium;
"
)
- if [%HOST%]==[cmake-visual] (
ECHO *** &&
ECHO *** Building %CMAKE_GENERATOR% ^(%CMAKE_GENERATOR_TOOLSET%^) %PLATFORM%\%CONFIGURATION% &&
PUSHD build\cmake &&
cmake -DBUILD_TESTING=ON . &&
cmake --build . --config %CONFIGURATION% -j4 &&
POPD &&
ECHO ***
)
- if [%HOST%]==[visual] (
ECHO *** &&
ECHO *** Building Visual Studio 2012 %PLATFORM%\%CONFIGURATION% &&
ECHO *** &&
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v110 /p:ForceImportBeforeCppTargets=%APPVEYOR_BUILD_FOLDER%\build\VS2010\CompileAsCpp.props /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe &&
msbuild "build\VS2010\zstd.sln" /m /verbosity:minimal /property:PlatformToolset=v110 /t:Clean,Build /p:Platform=%PLATFORM% /p:Configuration=%CONFIGURATION% /logger:"C:\Program Files\AppVeyor\BuildAgent\Appveyor.MSBuildLogger.dll" &&
DIR build\VS2010\bin\%PLATFORM%_%CONFIGURATION%\*.exe
)
test_script:
- ECHO Testing %COMPILER% %PLATFORM% %CONFIGURATION%
- SET "FUZZERTEST=-T10s"
- if [%HOST%]==[mingw] (
set "CC=%COMPILER%" &&
make clean &&
make check
)

33
3rdparty/zstd/build/.gitignore vendored Normal file
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@ -0,0 +1,33 @@
# Visual C++
.vs/
*Copy
*.db
*.opensdf
*.sdf
*.suo
*.user
*.opendb
VS2008/bin/
VS2010/bin/
VS2010/zwrapbench/
VS2012/
VS2013/
VS2015/
Studio*
# CMake
cmake/build/
CMakeCache.txt
CMakeFiles
CMakeScripts
Testing
Makefile
cmake_install.cmake
install_manifest.txt
compile_commands.json
CTestTestfile.cmake
build
lib
!cmake/lib
!meson/lib

0
3rdparty/zstd/build/LICENSE vendored Normal file
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56
3rdparty/zstd/build/README.md vendored Normal file
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@ -0,0 +1,56 @@
Projects for various integrated development environments (IDE)
==============================================================
#### Included projects
The following projects are included with the zstd distribution:
- `cmake` - CMake project contributed by Artyom Dymchenko
- `VS2005` - Visual Studio 2005 Project (this project has been moved to the contrib directory and will no longer be supported)
- `VS2008` - Visual Studio 2008 project
- `VS2010` - Visual Studio 2010 project (which also works well with Visual Studio 2012, 2013, 2015)
- `VS_scripts` - command line scripts prepared for Visual Studio compilation without IDE
#### How to compile zstd with Visual Studio
1. Install Visual Studio e.g. VS 2015 Community Edition (it's free).
2. Download the latest version of zstd from https://github.com/facebook/zstd/releases
3. Decompress ZIP archive.
4. Go to decompressed directory then to `projects` then `VS2010` and open `zstd.sln`
5. Visual Studio will ask about converting VS2010 project to VS2015 and you should agree.
6. Change `Debug` to `Release` and if you have 64-bit Windows change also `Win32` to `x64`.
7. Press F7 on keyboard or select `BUILD` from the menu bar and choose `Build Solution`.
8. If compilation will be fine a compiled executable will be in `projects\VS2010\bin\x64\Release\zstd.exe`
#### Projects available within zstd.sln
The Visual Studio solution file `visual\VS2010\zstd.sln` contains many projects that will be compiled to the
`visual\VS2010\bin\$(Platform)_$(Configuration)` directory. For example `zstd` set to `x64` and
`Release` will be compiled to `visual\VS2010\bin\x64_Release\zstd.exe`. The solution file contains the
following projects:
- `zstd` : Command Line Utility, supporting gzip-like arguments
- `datagen` : Synthetic and parametrable data generator, for tests
- `fullbench` : Precisely measure speed for each zstd inner functions
- `fuzzer` : Test tool, to check zstd integrity on target platform
- `libzstd` : A static ZSTD library compiled to `libzstd_static.lib`
- `libzstd-dll` : A dynamic ZSTD library (DLL) compiled to `libzstd.dll` with the import library `libzstd.lib`
- `fullbench-dll` : The fullbench program compiled with the import library; the executable requires ZSTD DLL
#### Using ZSTD DLL with Microsoft Visual C++ project
The header file `lib\zstd.h` and the import library
`visual\VS2010\bin\$(Platform)_$(Configuration)\libzstd.lib` are required to compile
a project using Visual C++.
1. The path to header files should be added to `Additional Include Directories` that can
be found in Project Properties of Visual Studio IDE in the `C/C++` Property Pages on the `General` page.
2. The import library has to be added to `Additional Dependencies` that can
be found in Project Properties in the `Linker` Property Pages on the `Input` page.
If one will provide only the name `libzstd.lib` without a full path to the library
then the directory has to be added to `Linker\General\Additional Library Directories`.
The compiled executable will require ZSTD DLL which is available at
`visual\VS2010\bin\$(Platform)_$(Configuration)\libzstd.dll`.

549
3rdparty/zstd/build/VS2008/fullbench/fullbench.vcproj vendored Normal file
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@ -0,0 +1,549 @@
<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="9.00"
Name="fullbench"
ProjectGUID="{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}"
RootNamespace="fullbench"
Keyword="Win32Proj"
TargetFrameworkVersion="196613"
>
<Platforms>
<Platform
Name="Win32"
/>
<Platform
Name="x64"
/>
</Platforms>
<ToolFiles>
</ToolFiles>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
ConfigurationType="1"
CharacterSet="2"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs;$(SolutionDir)..\..\programs\legacy"
PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
MinimalRebuild="true"
BasicRuntimeChecks="3"
RuntimeLibrary="3"
UsePrecompiledHeader="0"
WarningLevel="4"
WarnAsError="true"
DebugInformationFormat="4"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
LinkIncremental="2"
GenerateDebugInformation="true"
SubSystem="1"
TargetMachine="1"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Release|Win32"
OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
ConfigurationType="1"
CharacterSet="2"
WholeProgramOptimization="1"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="2"
EnableIntrinsicFunctions="true"
OmitFramePointers="true"
AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs;$(SolutionDir)..\..\programs\legacy"
PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
RuntimeLibrary="0"
EnableFunctionLevelLinking="true"
UsePrecompiledHeader="0"
WarningLevel="4"
DebugInformationFormat="3"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
LinkIncremental="1"
GenerateDebugInformation="true"
SubSystem="1"
OptimizeReferences="2"
EnableCOMDATFolding="2"
TargetMachine="1"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Debug|x64"
OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
ConfigurationType="1"
CharacterSet="2"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
TargetEnvironment="3"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs;$(SolutionDir)..\..\programs\legacy"
PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
MinimalRebuild="true"
BasicRuntimeChecks="3"
RuntimeLibrary="3"
UsePrecompiledHeader="0"
WarningLevel="4"
WarnAsError="true"
DebugInformationFormat="3"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
LinkIncremental="2"
GenerateDebugInformation="true"
SubSystem="1"
TargetMachine="17"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
<Configuration
Name="Release|x64"
OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
ConfigurationType="1"
CharacterSet="2"
WholeProgramOptimization="1"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
TargetEnvironment="3"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="2"
EnableIntrinsicFunctions="true"
OmitFramePointers="true"
AdditionalIncludeDirectories="$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\programs;$(SolutionDir)..\..\programs\legacy"
PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
RuntimeLibrary="0"
EnableFunctionLevelLinking="true"
UsePrecompiledHeader="0"
WarningLevel="4"
DebugInformationFormat="3"
/>
<Tool
Name="VCManagedResourceCompilerTool"
/>
<Tool
Name="VCResourceCompilerTool"
/>
<Tool
Name="VCPreLinkEventTool"
/>
<Tool
Name="VCLinkerTool"
LinkIncremental="1"
GenerateDebugInformation="true"
SubSystem="1"
OptimizeReferences="2"
EnableCOMDATFolding="2"
TargetMachine="17"
/>
<Tool
Name="VCALinkTool"
/>
<Tool
Name="VCManifestTool"
/>
<Tool
Name="VCXDCMakeTool"
/>
<Tool
Name="VCBscMakeTool"
/>
<Tool
Name="VCFxCopTool"
/>
<Tool
Name="VCAppVerifierTool"
/>
<Tool
Name="VCPostBuildEventTool"
/>
</Configuration>
</Configurations>
<References>
</References>
<Files>
<Filter
Name="Source Files"
Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
>
<File
RelativePath="..\..\..\lib\common\entropy_common.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\hist.c"
>
</File>
<File
RelativePath="..\..\..\lib\common\error_private.c"
>
</File>
<File
RelativePath="..\..\..\lib\common\fse_decompress.c"
>
</File>
<File
RelativePath="..\..\..\lib\common\xxhash.c"
>
</File>
<File
RelativePath="..\..\..\lib\common\zstd_common.c"
>
</File>
<File
RelativePath="..\..\..\lib\common\pool.c"
>
</File>
<File
RelativePath="..\..\..\lib\common\threading.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_compress.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_compress_literals.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_compress_sequences.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_compress_superblock.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstdmt_compress.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\fse_compress.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\huf_compress.c"
>
</File>
<File
RelativePath="..\..\..\lib\decompress\zstd_decompress.c"
>
</File>
<File
RelativePath="..\..\..\lib\decompress\zstd_decompress_block.c"
>
</File>
<File
RelativePath="..\..\..\lib\decompress\zstd_ddict.c"
>
</File>
<File
RelativePath="..\..\..\lib\decompress\huf_decompress.c"
>
</File>
<File
RelativePath="..\..\..\programs\datagen.c"
>
</File>
<File
RelativePath="..\..\..\programs\benchfn.c"
>
</File>
<File
RelativePath="..\..\..\tests\fullbench.c"
>
</File>
<File
RelativePath="..\..\..\programs\util.c"
>
</File>
<File
RelativePath="..\..\..\programs\timefn.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_fast.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_double_fast.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_lazy.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_opt.c"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_ldm.c"
>
</File>
</Filter>
<Filter
Name="Header Files"
Filter="h;hpp;hxx;hm;inl;inc;xsd"
UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
>
<File
RelativePath="..\..\..\lib\zstd.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\bitstream.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\error_private.h"
>
</File>
<File
RelativePath="..\..\..\lib\zstd_errors.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\fse.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\fse_static.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\huf.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\huf_static.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\xxhash.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\mem.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\zstd_internal.h"
>
</File>
<File
RelativePath="..\..\..\lib\common\zstd_static.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstdmt_compress.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_compress.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_compress_literals.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_compress_sequences.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_cwksp.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_compress_superblock.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_fast.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_double_fast.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_lazy.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_opt.h"
>
</File>
<File
RelativePath="..\..\..\lib\compress\zstd_ldm.h"
>
</File>
</Filter>
</Files>
<Globals>
</Globals>
</VisualStudioProject>

585
3rdparty/zstd/build/VS2008/fuzzer/fuzzer.vcproj vendored Normal file
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@ -0,0 +1,585 @@
<?xml version="1.0" encoding="Windows-1252"?>
<VisualStudioProject
ProjectType="Visual C++"
Version="9.00"
Name="fuzzer"
ProjectGUID="{A62E89D2-9DDE-42BA-8F9B-9DA74889A6B0}"
RootNamespace="fuzzer"
Keyword="Win32Proj"
TargetFrameworkVersion="196613"
>
<Platforms>
<Platform
Name="Win32"
/>
<Platform
Name="x64"
/>
</Platforms>
<ToolFiles>
</ToolFiles>
<Configurations>
<Configuration
Name="Debug|Win32"
OutputDirectory="$(SolutionDir)bin\$(PlatformName)\$(ConfigurationName)"
IntermediateDirectory="$(PlatformName)\$(ConfigurationName)"
ConfigurationType="1"
CharacterSet="2"
>
<Tool
Name="VCPreBuildEventTool"
/>
<Tool
Name="VCCustomBuildTool"
/>
<Tool
Name="VCXMLDataGeneratorTool"
/>
<Tool
Name="VCWebServiceProxyGeneratorTool"
/>
<Tool
Name="VCMIDLTool"
/>
<Tool
Name="VCCLCompilerTool"
Optimization="0"
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56
3rdparty/zstd/build/VS2008/zstd.sln vendored Normal file
View File

@ -0,0 +1,56 @@
Microsoft Visual Studio Solution File, Format Version 10.00
# Visual Studio 2008
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zstd", "zstd\zstd.vcproj", "{1A2AB08E-5CE7-4C5B-BE55-458157C14051}"
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "fullbench", "fullbench\fullbench.vcproj", "{CC8F1D1B-BA2F-43E3-A71F-FA415D81AAD3}"
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zstdlib", "zstdlib\zstdlib.vcproj", "{99DE2A79-7298-4004-A0ED-030D7A3796CA}"
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Release|Win32 = Release|Win32
Release|x64 = Release|x64
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{99DE2A79-7298-4004-A0ED-030D7A3796CA}.Debug|Win32.Build.0 = Debug|Win32
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EndGlobal

673
3rdparty/zstd/build/VS2008/zstd/zstd.vcproj vendored Normal file
View File

@ -0,0 +1,673 @@
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635
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8
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168
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242
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89
3rdparty/zstd/build/VS2010/zstd.sln vendored Normal file
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@ -0,0 +1,89 @@

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51
3rdparty/zstd/build/VS2010/zstd/zstd.rc vendored Normal file
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// Microsoft Visual C++ generated resource script.
//
#include "zstd.h" /* ZSTD_VERSION_STRING */
#define APSTUDIO_READONLY_SYMBOLS
#include "verrsrc.h"
#undef APSTUDIO_READONLY_SYMBOLS
#if !defined(AFX_RESOURCE_DLL) || defined(AFX_TARG_ENU)
LANGUAGE 9, 1
/////////////////////////////////////////////////////////////////////////////
//
// Version
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION ZSTD_VERSION_MAJOR,ZSTD_VERSION_MINOR,ZSTD_VERSION_RELEASE,0
PRODUCTVERSION ZSTD_VERSION_MAJOR,ZSTD_VERSION_MINOR,ZSTD_VERSION_RELEASE,0
FILEFLAGSMASK VS_FFI_FILEFLAGSMASK
#ifdef _DEBUG
FILEFLAGS VS_FF_DEBUG
#else
FILEFLAGS 0x0L
#endif
FILEOS VOS_NT_WINDOWS32
FILETYPE VFT_DLL
FILESUBTYPE VFT2_UNKNOWN
BEGIN
BLOCK "StringFileInfo"
BEGIN
BLOCK "040904B0"
BEGIN
VALUE "CompanyName", "Meta Platforms, Inc."
VALUE "FileDescription", "Zstandard - Fast and efficient compression algorithm"
VALUE "FileVersion", ZSTD_VERSION_STRING
VALUE "InternalName", "zstd.exe"
VALUE "LegalCopyright", "Copyright (c) Meta Platforms, Inc. and affiliates."
VALUE "OriginalFilename", "zstd.exe"
VALUE "ProductName", "Zstandard"
VALUE "ProductVersion", ZSTD_VERSION_STRING
END
END
BLOCK "VarFileInfo"
BEGIN
VALUE "Translation", 0x0409, 1200
END
END
#endif

264
3rdparty/zstd/build/VS2010/zstd/zstd.vcxproj vendored Normal file
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@ -0,0 +1,264 @@
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="Debug|Win32">
<Configuration>Debug</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Debug|x64">
<Configuration>Debug</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|Win32">
<Configuration>Release</Configuration>
<Platform>Win32</Platform>
</ProjectConfiguration>
<ProjectConfiguration Include="Release|x64">
<Configuration>Release</Configuration>
<Platform>x64</Platform>
</ProjectConfiguration>
</ItemGroup>
<ItemGroup>
<ClCompile Include="..\..\..\lib\common\debug.c" />
<ClCompile Include="..\..\..\lib\common\entropy_common.c" />
<ClCompile Include="..\..\..\lib\common\error_private.c" />
<ClCompile Include="..\..\..\lib\common\pool.c" />
<ClCompile Include="..\..\..\lib\common\threading.c" />
<ClCompile Include="..\..\..\lib\common\xxhash.c" />
<ClCompile Include="..\..\..\lib\common\zstd_common.c" />
<ClCompile Include="..\..\..\lib\common\fse_decompress.c" />
<ClCompile Include="..\..\..\lib\compress\hist.c" />
<ClCompile Include="..\..\..\lib\compress\fse_compress.c" />
<ClCompile Include="..\..\..\lib\compress\huf_compress.c" />
<ClCompile Include="..\..\..\lib\compress\zstdmt_compress.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_compress.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_compress_literals.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_compress_sequences.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_compress_superblock.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_fast.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_double_fast.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_lazy.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_opt.c" />
<ClCompile Include="..\..\..\lib\compress\zstd_ldm.c" />
<ClCompile Include="..\..\..\lib\decompress\huf_decompress.c" />
<ClCompile Include="..\..\..\lib\decompress\zstd_decompress.c" />
<ClCompile Include="..\..\..\lib\decompress\zstd_decompress_block.c" />
<ClCompile Include="..\..\..\lib\decompress\zstd_ddict.c" />
<ClCompile Include="..\..\..\lib\dictBuilder\cover.c" />
<ClCompile Include="..\..\..\lib\dictBuilder\fastcover.c" />
<ClCompile Include="..\..\..\lib\dictBuilder\divsufsort.c" />
<ClCompile Include="..\..\..\lib\dictBuilder\zdict.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v01.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v02.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v03.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v04.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v05.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v06.c" />
<ClCompile Include="..\..\..\lib\legacy\zstd_v07.c" />
<ClCompile Include="..\..\..\programs\util.c" />
<ClCompile Include="..\..\..\programs\timefn.c" />
<ClCompile Include="..\..\..\programs\benchfn.c" />
<ClCompile Include="..\..\..\programs\benchzstd.c" />
<ClCompile Include="..\..\..\programs\datagen.c" />
<ClCompile Include="..\..\..\programs\dibio.c" />
<ClCompile Include="..\..\..\programs\fileio.c" />
<ClCompile Include="..\..\..\programs\fileio_asyncio.c" />
<ClCompile Include="..\..\..\programs\zstdcli.c" />
<ClCompile Include="..\..\..\programs\zstdcli_trace.c" />
</ItemGroup>
<ItemGroup>
<ClInclude Include="..\..\..\lib\common\pool.h" />
<ClInclude Include="..\..\..\lib\common\threading.h" />
<ClInclude Include="..\..\..\lib\common\xxhash.h" />
<ClInclude Include="..\..\..\lib\compress\zstdmt_compress.h" />
<ClInclude Include="..\..\..\lib\zdict.h" />
<ClInclude Include="..\..\..\lib\dictBuilder\cover.h" />
<ClInclude Include="..\..\..\lib\dictBuilder\divsufsort.h" />
<ClInclude Include="..\..\..\lib\common\fse.h" />
<ClInclude Include="..\..\..\lib\common\huf.h" />
<ClInclude Include="..\..\..\lib\zstd.h" />
<ClInclude Include="..\..\..\lib\common\zstd_internal.h" />
<ClInclude Include="..\..\..\lib\zstd_errors.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_compress.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_compress_literals.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_compress_sequences.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_cwksp.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_compress_superblock.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_fast.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_double_fast.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_lazy.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_opt.h" />
<ClInclude Include="..\..\..\lib\compress\zstd_ldm.h" />
<ClInclude Include="..\..\..\lib\decompress\zstd_ddict.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_legacy.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v01.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v02.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v03.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v04.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v05.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v06.h" />
<ClInclude Include="..\..\..\lib\legacy\zstd_v07.h" />
<ClInclude Include="..\..\..\programs\benchzstd.h" />
<ClInclude Include="..\..\..\programs\datagen.h" />
<ClInclude Include="..\..\..\programs\dibio.h" />
<ClInclude Include="..\..\..\programs\fileio.h" />
<ClInclude Include="..\..\..\programs\platform.h" />
<ClInclude Include="..\..\..\programs\util.h" />
</ItemGroup>
<ItemGroup>
<ResourceCompile Include="zstd.rc" />
</ItemGroup>
<PropertyGroup Label="Globals">
<ProjectGuid>{4E52A41A-F33B-4C7A-8C36-A1A6B4F4277C}</ProjectGuid>
<Keyword>Win32Proj</Keyword>
<RootNamespace>zstd</RootNamespace>
<OutDir>$(SolutionDir)bin\$(Platform)_$(Configuration)\</OutDir>
<IntDir>$(SolutionDir)bin\obj\$(RootNamespace)_$(Platform)_$(Configuration)\</IntDir>
<InstructionSet>NotSet</InstructionSet>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>true</UseDebugLibraries>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
<ConfigurationType>Application</ConfigurationType>
<UseDebugLibraries>false</UseDebugLibraries>
<WholeProgramOptimization>true</WholeProgramOptimization>
<CharacterSet>MultiByte</CharacterSet>
</PropertyGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
<ImportGroup Label="ExtensionSettings">
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="PropertySheets">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="PropertySheets">
<Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
</ImportGroup>
<PropertyGroup Label="UserMacros" />
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<LinkIncremental>true</LinkIncremental>
<IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
<RunCodeAnalysis>false</RunCodeAnalysis>
<LibraryPath>$(LibraryPath)</LibraryPath>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<LinkIncremental>true</LinkIncremental>
<IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
<RunCodeAnalysis>false</RunCodeAnalysis>
<LibraryPath>$(LibraryPath);</LibraryPath>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<LinkIncremental>false</LinkIncremental>
<IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
<RunCodeAnalysis>false</RunCodeAnalysis>
<LibraryPath>$(LibraryPath)</LibraryPath>
</PropertyGroup>
<PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<LinkIncremental>false</LinkIncremental>
<IncludePath>$(IncludePath);$(SolutionDir)..\..\lib;$(SolutionDir)..\..\lib\compress;$(SolutionDir)..\..\lib\legacy;$(SolutionDir)..\..\lib\common;$(SolutionDir)..\..\lib\dictBuilder;$(UniversalCRT_IncludePath);</IncludePath>
<RunCodeAnalysis>false</RunCodeAnalysis>
<LibraryPath>$(LibraryPath);</LibraryPath>
</PropertyGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
<ClCompile>
<PrecompiledHeader>
</PrecompiledHeader>
<WarningLevel>Level4</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<TreatWarningAsError>true</TreatWarningAsError>
<EnablePREfast>false</EnablePREfast>
<EnableEnhancedInstructionSet>$(InstructionSet)</EnableEnhancedInstructionSet>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<ClCompile>
<PrecompiledHeader>
</PrecompiledHeader>
<WarningLevel>Level4</WarningLevel>
<Optimization>Disabled</Optimization>
<PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<TreatWarningAsError>true</TreatWarningAsError>
<EnablePREfast>false</EnablePREfast>
<EnableEnhancedInstructionSet>$(InstructionSet)</EnableEnhancedInstructionSet>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
<ClCompile>
<WarningLevel>Level4</WarningLevel>
<PrecompiledHeader>
</PrecompiledHeader>
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<EnablePREfast>false</EnablePREfast>
<TreatWarningAsError>false</TreatWarningAsError>
<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
<EnableEnhancedInstructionSet>$(InstructionSet)</EnableEnhancedInstructionSet>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
<ClCompile>
<WarningLevel>Level4</WarningLevel>
<PrecompiledHeader>
</PrecompiledHeader>
<Optimization>MaxSpeed</Optimization>
<FunctionLevelLinking>true</FunctionLevelLinking>
<IntrinsicFunctions>true</IntrinsicFunctions>
<PreprocessorDefinitions>ZSTD_MULTITHREAD=1;ZSTD_LEGACY_SUPPORT=5;WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
<TreatWarningAsError>false</TreatWarningAsError>
<EnablePREfast>false</EnablePREfast>
<RuntimeLibrary>MultiThreaded</RuntimeLibrary>
<AdditionalOptions>/DZSTD_MULTITHREAD %(AdditionalOptions)</AdditionalOptions>
<EnableEnhancedInstructionSet>$(InstructionSet)</EnableEnhancedInstructionSet>
</ClCompile>
<Link>
<SubSystem>Console</SubSystem>
<GenerateDebugInformation>true</GenerateDebugInformation>
<EnableCOMDATFolding>true</EnableCOMDATFolding>
<OptimizeReferences>true</OptimizeReferences>
<AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
</Link>
</ItemDefinitionGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>

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3rdparty/zstd/build/VS_scripts/README.md vendored Normal file
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Command line scripts for Visual Studio compilation without IDE
==============================================================
Here are a few command lines for reference :
### Build with Visual Studio 2013 for msvcr120.dll
Running the following command will build both the `Release Win32` and `Release x64` versions:
```batch
build.VS2013.cmd
```
The result of each build will be in the corresponding `bin\Release\{ARCH}\` folder.
If you want to only need one architecture:
- Win32: `build.generic.cmd VS2013 Win32 Release v120`
- x64: `build.generic.cmd VS2013 x64 Release v120`
If you want a Debug build:
- Win32: `build.generic.cmd VS2013 Win32 Debug v120`
- x64: `build.generic.cmd VS2013 x64 Debug v120`
### Build with Visual Studio 2015 for msvcr140.dll
Running the following command will build both the `Release Win32` and `Release x64` versions:
```batch
build.VS2015.cmd
```
The result of each build will be in the corresponding `bin\Release\{ARCH}\` folder.
If you want to only need one architecture:
- Win32: `build.generic.cmd VS2015 Win32 Release v140`
- x64: `build.generic.cmd VS2015 x64 Release v140`
If you want a Debug build:
- Win32: `build.generic.cmd VS2015 Win32 Debug v140`
- x64: `build.generic.cmd VS2015 x64 Debug v140`
### Build with Visual Studio 2015 for msvcr120.dll
This capability is offered through `build.generic.cmd` using proper arguments:
**For Win32**
```batch
build.generic.cmd VS2015 Win32 Release v120
```
The result of the build will be in the `bin\Release\Win32\` folder.
**For x64**
```batch
build.generic.cmd VS2015 x64 Release v120
```
The result of the build will be in the `bin\Release\x64\` folder.
If you want Debug builds, replace `Release` with `Debug`.
### Build with Visual Studio 2017
`build.VS2017.cmd`, contributed by [@HaydnTrigg](https://github.com/HaydnTrigg),
will build both the `Release Win32` and `Release x64` versions
of the first VS2017 variant it finds, in this priority order :
Enterprise > Professional > Community
Alternatively, it's possible to target a specific version,
using appropriate script, such as `build.VS2017Enterprise.cmd` for example.

7
3rdparty/zstd/build/VS_scripts/build.VS2010.cmd vendored Normal file
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@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2010 Win32 Release v100
rem build 64-bit
call "%~p0%build.generic.cmd" VS2010 x64 Release v100

6
3rdparty/zstd/build/VS_scripts/build.VS2012.cmd vendored Normal file
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@ -0,0 +1,6 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2012 Win32 Release v110
rem build 64-bit
call "%~p0%build.generic.cmd" VS2012 x64 Release v110

7
3rdparty/zstd/build/VS_scripts/build.VS2013.cmd vendored Normal file
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@ -0,0 +1,7 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2013 Win32 Release v120
rem build 64-bit
call "%~p0%build.generic.cmd" VS2013 x64 Release v120

7
3rdparty/zstd/build/VS_scripts/build.VS2015.cmd vendored Normal file
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@ -0,0 +1,7 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2015 Win32 Release v140
rem build 64-bit
call "%~p0%build.generic.cmd" VS2015 x64 Release v140

7
3rdparty/zstd/build/VS_scripts/build.VS2017.cmd vendored Normal file
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@ -0,0 +1,7 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2017 Win32 Release v141
rem build 64-bit
call "%~p0%build.generic.cmd" VS2017 x64 Release v141

7
3rdparty/zstd/build/VS_scripts/build.VS2017Community.cmd vendored Normal file
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@ -0,0 +1,7 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2017Community Win32 Release v141
rem build 64-bit
call "%~p0%build.generic.cmd" VS2017Community x64 Release v141

7
3rdparty/zstd/build/VS_scripts/build.VS2017Enterprise.cmd vendored Normal file
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@ -0,0 +1,7 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2017Enterprise Win32 Release v141
rem build 64-bit
call "%~p0%build.generic.cmd" VS2017Enterprise x64 Release v141

7
3rdparty/zstd/build/VS_scripts/build.VS2017Professional.cmd vendored Normal file
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@ -0,0 +1,7 @@
@echo off
rem build 32-bit
call "%~p0%build.generic.cmd" VS2017Professional Win32 Release v141
rem build 64-bit
call "%~p0%build.generic.cmd" VS2017Professional x64 Release v141

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@echo off
IF "%1%" == "" GOTO display_help
SETLOCAL
SET msbuild_version=%1
SET msbuild_platform=%2
IF "%msbuild_platform%" == "" SET msbuild_platform=x64
SET msbuild_configuration=%3
IF "%msbuild_configuration%" == "" SET msbuild_configuration=Release
SET msbuild_toolset=%4
GOTO build
:display_help
echo Syntax: build.generic.cmd msbuild_version msbuild_platform msbuild_configuration msbuild_toolset
echo msbuild_version: VS installed version (VS2012, VS2013, VS2015, VS2017, VS2019, ...)
echo msbuild_platform: Platform (x64 or Win32)
echo msbuild_configuration: VS configuration (Release or Debug)
echo msbuild_toolset: Platform Toolset (v100, v110, v120, v140, v141, v142, ...)
EXIT /B 1
:build
SET msbuild="%windir%\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
SET msbuild_vs2017community="%programfiles(x86)%\Microsoft Visual Studio\2017\Community\MSBuild\15.0\Bin\MSBuild.exe"
SET msbuild_vs2017professional="%programfiles(x86)%\Microsoft Visual Studio\2017\Professional\MSBuild\15.0\Bin\MSBuild.exe"
SET msbuild_vs2017enterprise="%programfiles(x86)%\Microsoft Visual Studio\2017\Enterprise\MSBuild\15.0\Bin\MSBuild.exe"
IF %msbuild_version% == VS2013 SET msbuild="%programfiles(x86)%\MSBuild\12.0\Bin\MSBuild.exe"
IF %msbuild_version% == VS2015 SET msbuild="%programfiles(x86)%\MSBuild\14.0\Bin\MSBuild.exe"
IF %msbuild_version% == VS2017Community SET msbuild=%msbuild_vs2017community%
IF %msbuild_version% == VS2017Professional SET msbuild=%msbuild_vs2017professional%
IF %msbuild_version% == VS2017Enterprise SET msbuild=%msbuild_vs2017enterprise%
IF %msbuild_version% == VS2017 (
IF EXIST %msbuild_vs2017community% SET msbuild=%msbuild_vs2017community%
IF EXIST %msbuild_vs2017professional% SET msbuild=%msbuild_vs2017professional%
IF EXIST %msbuild_vs2017enterprise% SET msbuild=%msbuild_vs2017enterprise%
)
:: VS2019
SET msbuild_vs2019community="%programfiles(x86)%\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe"
SET msbuild_vs2019professional="%programfiles(x86)%\Microsoft Visual Studio\2019\Professional\MSBuild\Current\Bin\MSBuild.exe"
SET msbuild_vs2019enterprise="%programfiles(x86)%\Microsoft Visual Studio\2019\Enterprise\MSBuild\Current\Bin\MSBuild.exe"
IF %msbuild_version% == VS2019 (
IF EXIST %msbuild_vs2019community% SET msbuild=%msbuild_vs2019community%
IF EXIST %msbuild_vs2019professional% SET msbuild=%msbuild_vs2019professional%
IF EXIST %msbuild_vs2019enterprise% SET msbuild=%msbuild_vs2019enterprise%
)
SET project="%~p0\..\VS2010\zstd.sln"
SET msbuild_params=/verbosity:minimal /nologo /t:Clean,Build /p:Platform=%msbuild_platform% /p:Configuration=%msbuild_configuration%
IF NOT "%msbuild_toolset%" == "" SET msbuild_params=%msbuild_params% /p:PlatformToolset=%msbuild_toolset%
SET output=%~p0%bin
SET output="%output%/%msbuild_configuration%/%msbuild_platform%/"
SET msbuild_params=%msbuild_params% /p:OutDir=%output%
echo ### Building %msbuild_version% project for %msbuild_configuration% %msbuild_platform% (%msbuild_toolset%)...
echo ### Build Params: %msbuild_params%
%msbuild% %project% %msbuild_params%
IF ERRORLEVEL 1 EXIT /B 1
echo # Success
echo # OutDir: %output%
echo #

10
3rdparty/zstd/build/cmake/.gitignore vendored Normal file
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# cmake working directory
cmakeBuild
# cmake artefacts
CMakeCache.txt
CMakeFiles
Makefile
cmake_install.cmake
cmake_uninstall.cmake
*.1

212
3rdparty/zstd/build/cmake/CMakeLists.txt vendored Normal file
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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# ################################################################
cmake_minimum_required(VERSION 2.8.12 FATAL_ERROR)
# As of 2018-12-26 ZSTD has been validated to build with cmake version 3.13.2 new policies.
# Set and use the newest cmake policies that are validated to work
set(ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION "3")
set(ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION "13") #Policies never changed at PATCH level
if("${CMAKE_MAJOR_VERSION}" LESS 3)
set(ZSTD_CMAKE_POLICY_VERSION "${CMAKE_VERSION}")
elseif( "${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}" EQUAL "${CMAKE_MAJOR_VERSION}" AND
"${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}" GREATER "${CMAKE_MINOR_VERSION}")
set(ZSTD_CMAKE_POLICY_VERSION "${CMAKE_VERSION}")
else()
set(ZSTD_CMAKE_POLICY_VERSION "${ZSTD_MAX_VALIDATED_CMAKE_MAJOR_VERSION}.${ZSTD_MAX_VALIDATED_CMAKE_MINOR_VERSION}.0")
endif()
cmake_policy(VERSION ${ZSTD_CMAKE_POLICY_VERSION})
set(CMAKE_BUILD_WITH_INSTALL_RPATH on)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMakeModules")
set(ZSTD_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../..")
set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
# Parse version
include(GetZstdLibraryVersion)
GetZstdLibraryVersion(${LIBRARY_DIR}/zstd.h zstd_VERSION_MAJOR zstd_VERSION_MINOR zstd_VERSION_PATCH)
if( CMAKE_MAJOR_VERSION LESS 3 )
## Provide cmake 3+ behavior for older versions of cmake
project(zstd)
set(PROJECT_VERSION_MAJOR ${zstd_VERSION_MAJOR})
set(PROJECT_VERSION_MINOR ${zstd_VERSION_MINOR})
set(PROJECT_VERSION_PATCH ${zstd_VERSION_PATCH})
set(PROJECT_VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}")
enable_language(C) # Main library is in C
enable_language(ASM) # And ASM
enable_language(CXX) # Testing contributed code also utilizes CXX
else()
project(zstd
VERSION "${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}"
LANGUAGES C # Main library is in C
ASM # And ASM
CXX # Testing contributed code also utilizes CXX
)
endif()
message(STATUS "ZSTD VERSION: ${zstd_VERSION}")
set(zstd_HOMEPAGE_URL "https://facebook.github.io/zstd")
set(zstd_DESCRIPTION "Zstandard is a real-time compression algorithm, providing high compression ratios.")
# Set a default build type if none was specified
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "Setting build type to 'Release' as none was specified.")
set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build." FORCE)
# Set the possible values of build type for cmake-gui
set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS "Debug" "Release" "MinSizeRel" "RelWithDebInfo")
endif()
include(GNUInstallDirs)
#-----------------------------------------------------------------------------
# Add extra compilation flags
#-----------------------------------------------------------------------------
include(AddZstdCompilationFlags)
ADD_ZSTD_COMPILATION_FLAGS()
# Always hide XXHash symbols
add_definitions(-DXXH_NAMESPACE=ZSTD_)
#-----------------------------------------------------------------------------
# Installation variables
#-----------------------------------------------------------------------------
message(STATUS "CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}")
message(STATUS "CMAKE_INSTALL_LIBDIR: ${CMAKE_INSTALL_LIBDIR}")
#-----------------------------------------------------------------------------
# Options
#-----------------------------------------------------------------------------
# Legacy support
option(ZSTD_LEGACY_SUPPORT "LEGACY SUPPORT" ON)
if (ZSTD_LEGACY_SUPPORT)
message(STATUS "ZSTD_LEGACY_SUPPORT defined!")
set(ZSTD_LEGACY_LEVEL 5 CACHE STRING "")
add_definitions(-DZSTD_LEGACY_SUPPORT=${ZSTD_LEGACY_LEVEL})
else ()
message(STATUS "ZSTD_LEGACY_SUPPORT not defined!")
add_definitions(-DZSTD_LEGACY_SUPPORT=0)
endif ()
if (ANDROID)
set(ZSTD_MULTITHREAD_SUPPORT_DEFAULT OFF)
else()
set(ZSTD_MULTITHREAD_SUPPORT_DEFAULT ON)
endif()
# Multi-threading support
option(ZSTD_MULTITHREAD_SUPPORT "MULTITHREADING SUPPORT" ${ZSTD_MULTITHREAD_SUPPORT_DEFAULT})
if (ZSTD_MULTITHREAD_SUPPORT)
message(STATUS "ZSTD_MULTITHREAD_SUPPORT is enabled")
else ()
message(STATUS "ZSTD_MULTITHREAD_SUPPORT is disabled")
endif ()
option(ZSTD_BUILD_PROGRAMS "BUILD PROGRAMS" ON)
option(ZSTD_BUILD_CONTRIB "BUILD CONTRIB" OFF)
# Respect the conventional CMake option for enabling tests if it was specified on the first configure
if (BUILD_TESTING)
set(ZSTD_BUILD_TESTS_default ON)
else()
set(ZSTD_BUILD_TESTS_default OFF)
endif()
option(ZSTD_BUILD_TESTS "BUILD TESTS" ${ZSTD_BUILD_TESTS_default})
if (MSVC)
option(ZSTD_USE_STATIC_RUNTIME "LINK TO STATIC RUN-TIME LIBRARIES" OFF)
endif ()
#-----------------------------------------------------------------------------
# External dependencies
#-----------------------------------------------------------------------------
if (ZSTD_MULTITHREAD_SUPPORT AND UNIX)
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
if(CMAKE_USE_PTHREADS_INIT)
set(THREADS_LIBS "${CMAKE_THREAD_LIBS_INIT}")
else()
message(SEND_ERROR "ZSTD currently does not support thread libraries other than pthreads")
endif()
endif ()
#-----------------------------------------------------------------------------
# Add source directories
#-----------------------------------------------------------------------------
add_subdirectory(lib)
option(ZSTD_PROGRAMS_LINK_SHARED "PROGRAMS LINK SHARED" OFF)
if (ZSTD_BUILD_PROGRAMS)
if (NOT ZSTD_BUILD_STATIC AND NOT ZSTD_PROGRAMS_LINK_SHARED)
message(SEND_ERROR "You need to build static library to build zstd CLI")
elseif(NOT ZSTD_BUILD_SHARED AND ZSTD_PROGRAMS_LINK_SHARED)
message(SEND_ERROR "You need to build shared library to build zstd CLI")
endif ()
add_subdirectory(programs)
endif ()
if (ZSTD_BUILD_TESTS)
enable_testing()
if (NOT ZSTD_BUILD_STATIC)
message(SEND_ERROR "You need to build static library to build tests")
endif ()
add_subdirectory(tests)
endif ()
if (ZSTD_BUILD_CONTRIB)
add_subdirectory(contrib)
endif ()
#-----------------------------------------------------------------------------
# Add clean-all target
#-----------------------------------------------------------------------------
add_custom_target(clean-all
COMMAND ${CMAKE_BUILD_TOOL} clean
COMMAND rm -rf ${CMAKE_BINARY_DIR}/
)
#-----------------------------------------------------------------------------
# Generate Package Config files
#
# This section is based on the boiler plate code from:
# https://cmake.org/cmake/help/latest/manual/cmake-packages.7.html#creating-packages
#-----------------------------------------------------------------------------
include(CMakePackageConfigHelpers)
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/zstdConfigVersion.cmake"
VERSION ${zstd_VERSION}
COMPATIBILITY SameMajorVersion
)
# A Package Config file that works from the build directory
export(EXPORT zstdExports
FILE "${CMAKE_CURRENT_BINARY_DIR}/zstdTargets.cmake"
NAMESPACE zstd::
)
configure_file(zstdConfig.cmake
"${CMAKE_CURRENT_BINARY_DIR}/zstdConfig.cmake"
COPYONLY
)
# A Package Config file that works from the installation directory
set(ConfigPackageLocation ${CMAKE_INSTALL_LIBDIR}/cmake/zstd)
install(EXPORT zstdExports
FILE zstdTargets.cmake
NAMESPACE zstd::
DESTINATION ${ConfigPackageLocation}
)
install(FILES
zstdConfig.cmake
"${CMAKE_CURRENT_BINARY_DIR}/zstdConfigVersion.cmake"
DESTINATION ${ConfigPackageLocation}
)

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include(CheckCXXCompilerFlag)
include(CheckCCompilerFlag)
# VERSION_GREATER_EQUAL requires CMake 3.7 or later.
# https://cmake.org/cmake/help/latest/command/if.html#version-greater-equal
if (CMAKE_VERSION VERSION_LESS 3.18)
set(ZSTD_HAVE_CHECK_LINKER_FLAG false)
else ()
set(ZSTD_HAVE_CHECK_LINKER_FLAG true)
endif ()
if (ZSTD_HAVE_CHECK_LINKER_FLAG)
include(CheckLinkerFlag)
endif()
function(EnableCompilerFlag _flag _C _CXX _LD)
string(REGEX REPLACE "\\+" "PLUS" varname "${_flag}")
string(REGEX REPLACE "[^A-Za-z0-9]+" "_" varname "${varname}")
string(REGEX REPLACE "^_+" "" varname "${varname}")
string(TOUPPER "${varname}" varname)
if (_C)
CHECK_C_COMPILER_FLAG(${_flag} C_FLAG_${varname})
if (C_FLAG_${varname})
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${_flag}" PARENT_SCOPE)
endif ()
endif ()
if (_CXX)
CHECK_CXX_COMPILER_FLAG(${_flag} CXX_FLAG_${varname})
if (CXX_FLAG_${varname})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${_flag}" PARENT_SCOPE)
endif ()
endif ()
if (_LD)
# We never add a linker flag with CMake < 3.18. We will
# implement CHECK_LINKER_FLAG() like feature for CMake < 3.18
# or require CMake >= 3.18 when we need to add a required
# linker flag in future.
#
# We also skip linker flags check for MSVC compilers (which includes
# clang-cl) since currently check_linker_flag() doesn't give correct
# results for this configuration,
# see: https://gitlab.kitware.com/cmake/cmake/-/issues/22023
if (ZSTD_HAVE_CHECK_LINKER_FLAG AND NOT MSVC)
CHECK_LINKER_FLAG(C ${_flag} LD_FLAG_${varname})
else ()
set(LD_FLAG_${varname} false)
endif ()
if (LD_FLAG_${varname})
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${_flag}" PARENT_SCOPE)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${_flag}" PARENT_SCOPE)
endif ()
endif ()
endfunction()
macro(ADD_ZSTD_COMPILATION_FLAGS)
if (CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang" OR MINGW) #Not only UNIX but also WIN32 for MinGW
# It's possible to select the exact standard used for compilation.
# It's not necessary, but can be employed for specific purposes.
# Note that zstd source code is compatible with both C++98 and above
# and C-gnu90 (c90 + long long + variadic macros ) and above
# EnableCompilerFlag("-std=c++11" false true) # Set C++ compilation to c++11 standard
# EnableCompilerFlag("-std=c99" true false) # Set C compiation to c99 standard
if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" AND MSVC)
# clang-cl normally maps -Wall to -Weverything.
EnableCompilerFlag("/clang:-Wall" true true false)
else ()
EnableCompilerFlag("-Wall" true true false)
endif ()
EnableCompilerFlag("-Wextra" true true false)
EnableCompilerFlag("-Wundef" true true false)
EnableCompilerFlag("-Wshadow" true true false)
EnableCompilerFlag("-Wcast-align" true true false)
EnableCompilerFlag("-Wcast-qual" true true false)
EnableCompilerFlag("-Wstrict-prototypes" true false false)
# Enable asserts in Debug mode
if (CMAKE_BUILD_TYPE MATCHES "Debug")
EnableCompilerFlag("-DDEBUGLEVEL=1" true true false)
endif ()
# Add noexecstack flags
# LDFLAGS
EnableCompilerFlag("-z noexecstack" false false true)
# CFLAGS & CXXFLAGS
EnableCompilerFlag("-Qunused-arguments" true true false)
EnableCompilerFlag("-Wa,--noexecstack" true true false)
elseif (MSVC) # Add specific compilation flags for Windows Visual
set(ACTIVATE_MULTITHREADED_COMPILATION "ON" CACHE BOOL "activate multi-threaded compilation (/MP flag)")
if (CMAKE_GENERATOR MATCHES "Visual Studio" AND ACTIVATE_MULTITHREADED_COMPILATION)
EnableCompilerFlag("/MP" true true false)
endif ()
# UNICODE SUPPORT
EnableCompilerFlag("/D_UNICODE" true true false)
EnableCompilerFlag("/DUNICODE" true true false)
# Enable asserts in Debug mode
if (CMAKE_BUILD_TYPE MATCHES "Debug")
EnableCompilerFlag("/DDEBUGLEVEL=1" true true false)
endif ()
endif ()
# Remove duplicates compilation flags
foreach (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
if( ${flag_var} )
separate_arguments(${flag_var})
string(REPLACE ";" " " ${flag_var} "${${flag_var}}")
endif()
endforeach ()
if (MSVC AND ZSTD_USE_STATIC_RUNTIME)
foreach (flag_var CMAKE_C_FLAGS CMAKE_C_FLAGS_DEBUG CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_MINSIZEREL CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
if ( ${flag_var} )
string(REGEX REPLACE "/MD" "/MT" ${flag_var} "${${flag_var}}")
endif()
endforeach ()
endif ()
endmacro()

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# Find LibLZ4
#
# Find LibLZ4 headers and library
#
# Result Variables
#
# LIBLZ4_FOUND - True if lz4 is found
# LIBLZ4_INCLUDE_DIRS - lz4 headers directories
# LIBLZ4_LIBRARIES - lz4 libraries
# LIBLZ4_VERSION_MAJOR - The major version of lz4
# LIBLZ4_VERSION_MINOR - The minor version of lz4
# LIBLZ4_VERSION_RELEASE - The release version of lz4
# LIBLZ4_VERSION_STRING - version number string (e.g. 1.8.3)
#
# Hints
#
# Set ``LZ4_ROOT_DIR`` to the directory of lz4.h and lz4 library
set(_LIBLZ4_ROOT_HINTS
ENV LZ4_ROOT_DIR)
find_path( LIBLZ4_INCLUDE_DIR lz4.h
HINTS ${_LIBLZ4_ROOT_HINTS})
find_library( LIBLZ4_LIBRARY NAMES lz4 liblz4 liblz4_static
HINTS ${_LIBLZ4_ROOT_HINTS})
if(LIBLZ4_INCLUDE_DIR)
file(STRINGS "${LIBLZ4_INCLUDE_DIR}/lz4.h" LIBLZ4_HEADER_CONTENT REGEX "#define LZ4_VERSION_[A-Z]+ +[0-9]+")
string(REGEX REPLACE ".*#define LZ4_VERSION_MAJOR +([0-9]+).*" "\\1" LIBLZ4_VERSION_MAJOR "${LIBLZ4_HEADER_CONTENT}")
string(REGEX REPLACE ".*#define LZ4_VERSION_MINOR +([0-9]+).*" "\\1" LIBLZ4_VERSION_MINOR "${LIBLZ4_HEADER_CONTENT}")
string(REGEX REPLACE ".*#define LZ4_VERSION_RELEASE +([0-9]+).*" "\\1" LIBLZ4_VERSION_RELEASE "${LIBLZ4_HEADER_CONTENT}")
set(LIBLZ4_VERSION_STRING "${LIBLZ4_VERSION_MAJOR}.${LIBLZ4_VERSION_MINOR}.${LIBLZ4_VERSION_RELEASE}")
unset(LIBLZ4_HEADER_CONTENT)
endif()
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(LibLZ4 REQUIRED_VARS LIBLZ4_INCLUDE_DIR
LIBLZ4_LIBRARY
VERSION_VAR LIBLZ4_VERSION_STRING
FAIL_MESSAGE "Could NOT find LZ4, try to set the paths to lz4.h and lz4 library in environment variable LZ4_ROOT_DIR")
if (LIBLZ4_FOUND)
set(LIBLZ4_LIBRARIES ${LIBLZ4_LIBRARY})
set(LIBLZ4_INCLUDE_DIRS ${LIBLZ4_INCLUDE_DIR})
endif ()
mark_as_advanced( LIBLZ4_INCLUDE_DIR LIBLZ4_LIBRARY )

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function(GetZstdLibraryVersion _header _major _minor _patch)
# Read file content
file(READ ${_header} CONTENT)
string(REGEX MATCH ".*define ZSTD_VERSION_MAJOR *([0-9]+).*define ZSTD_VERSION_MINOR *([0-9]+).*define ZSTD_VERSION_RELEASE *([0-9]+)" VERSION_REGEX "${CONTENT}")
set(${_major} ${CMAKE_MATCH_1} PARENT_SCOPE)
set(${_minor} ${CMAKE_MATCH_2} PARENT_SCOPE)
set(${_patch} ${CMAKE_MATCH_3} PARENT_SCOPE)
endfunction()

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# This module provides function for joining paths
# known from most languages
#
# SPDX-License-Identifier: (MIT OR CC0-1.0)
# Copyright 2020 Jan Tojnar
# https://github.com/jtojnar/cmake-snips
#
# Modelled after Python’s os.path.join
# https://docs.python.org/3.7/library/os.path.html#os.path.join
# Windows not supported
function(join_paths joined_path first_path_segment)
set(temp_path "${first_path_segment}")
foreach(current_segment IN LISTS ARGN)
if(NOT ("${current_segment}" STREQUAL ""))
if(IS_ABSOLUTE "${current_segment}")
set(temp_path "${current_segment}")
else()
set(temp_path "${temp_path}/${current_segment}")
endif()
endif()
endforeach()
set(${joined_path} "${temp_path}" PARENT_SCOPE)
endfunction()

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# Cmake contributions
Contributions to the cmake build configurations are welcome. Please
use case sensitivity that matches modern (i.e. cmake version 2.6 and above)
conventions of using lower-case for commands, and upper-case for
variables.
## How to build
As cmake doesn't support command like `cmake clean`, it's recommended to perform an "out of source build".
To do this, you can create a new directory and build in it:
```sh
cd build/cmake
mkdir builddir
cd builddir
cmake ..
make
```
Then you can clean all cmake caches by simply delete the new directory:
```sh
rm -rf build/cmake/builddir
```
And of course, you can directly build in build/cmake:
```sh
cd build/cmake
cmake
make
```
To show cmake build options, you can:
```sh
cd build/cmake/builddir
cmake -LH ..
```
Bool options can be set to `ON/OFF` with `-D[option]=[ON/OFF]`. You can configure cmake options like this:
```sh
cd build/cmake/builddir
cmake -DZSTD_BUILD_TESTS=ON -DZSTD_LEGACY_SUPPORT=OFF ..
make
```
### referring
[Looking for a 'cmake clean' command to clear up CMake output](https://stackoverflow.com/questions/9680420/looking-for-a-cmake-clean-command-to-clear-up-cmake-output)
## CMake Style Recommendations
### Indent all code correctly, i.e. the body of
* if/else/endif
* foreach/endforeach
* while/endwhile
* macro/endmacro
* function/endfunction
Use spaces for indenting, 2, 3 or 4 spaces preferably. Use the same amount of
spaces for indenting as is used in the rest of the file. Do not use tabs.
### Upper/lower casing
Most important: use consistent upper- or lowercasing within one file !
In general, the all-lowercase style is preferred.
So, this is recommended:
```
add_executable(foo foo.c)
```
These forms are discouraged
```
ADD_EXECUTABLE(bar bar.c)
Add_Executable(hello hello.c)
aDd_ExEcUtAbLe(blub blub.c)
```
### End commands
To make the code easier to read, use empty commands for endforeach(), endif(),
endfunction(), endmacro() and endwhile(). Also, use empty else() commands.
For example, do this:
```
if(FOOVAR)
some_command(...)
else()
another_command(...)
endif()
```
and not this:
```
if(BARVAR)
some_other_command(...)
endif(BARVAR)
```
### Other resources for best practices
https://cmake.org/cmake/help/latest/manual/cmake-developer.7.html#modules

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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# ################################################################
project(contrib)
add_subdirectory(pzstd)
add_subdirectory(gen_html)

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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# ################################################################
project(gen_html)
include(GetZstdLibraryVersion)
set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
# Define programs directory, where sources and header files are located
set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
set(PROGRAMS_DIR ${ZSTD_SOURCE_DIR}/programs)
set(GENHTML_DIR ${ZSTD_SOURCE_DIR}/contrib/gen_html)
set(GENHTML_BINARY ${PROJECT_BINARY_DIR}/gen_html${CMAKE_EXECUTABLE_SUFFIX})
include_directories(${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${GENHTML_DIR})
add_executable(gen_html ${GENHTML_DIR}/gen_html.cpp)
GetZstdLibraryVersion(${LIBRARY_DIR}/zstd.h VMAJOR VMINOR VRELEASE)
set(LIBVERSION "${VMAJOR}.${VMINOR}.${VRELEASE}")
add_custom_target(zstd_manual.html ALL
${GENHTML_BINARY} "${LIBVERSION}" "${LIBRARY_DIR}/zstd.h" "${PROJECT_BINARY_DIR}/zstd_manual.html"
DEPENDS gen_html COMMENT "Update zstd manual")
install(FILES "${PROJECT_BINARY_DIR}/zstd_manual.html" DESTINATION "${CMAKE_INSTALL_DOCDIR}")

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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# ################################################################
project(pzstd)
set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
# Define programs directory, where sources and header files are located
set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
set(PROGRAMS_DIR ${ZSTD_SOURCE_DIR}/programs)
set(PZSTD_DIR ${ZSTD_SOURCE_DIR}/contrib/pzstd)
include_directories(${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${PZSTD_DIR})
add_executable(pzstd ${PROGRAMS_DIR}/util.c ${PZSTD_DIR}/main.cpp ${PZSTD_DIR}/Options.cpp ${PZSTD_DIR}/Pzstd.cpp ${PZSTD_DIR}/SkippableFrame.cpp)
set_property(TARGET pzstd APPEND PROPERTY COMPILE_DEFINITIONS "NDEBUG")
set_property(TARGET pzstd APPEND PROPERTY COMPILE_OPTIONS "-Wno-shadow")
if (ZSTD_BUILD_SHARED)
set(ZSTD_LIB libzstd_shared)
else()
set(ZSTD_LIB libzstd_static)
endif()
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)
if (CMAKE_USE_PTHREADS_INIT)
target_link_libraries(pzstd ${ZSTD_LIB} ${CMAKE_THREAD_LIBS_INIT})
else()
message(SEND_ERROR "ZSTD currently does not support thread libraries other than pthreads")
endif()
install(TARGETS pzstd RUNTIME DESTINATION "bin")

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# cmake build artefact
libzstd.pc

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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# ################################################################
project(libzstd C ASM)
set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
option(ZSTD_BUILD_STATIC "BUILD STATIC LIBRARIES" ON)
option(ZSTD_BUILD_SHARED "BUILD SHARED LIBRARIES" ON)
if(NOT ZSTD_BUILD_SHARED AND NOT ZSTD_BUILD_STATIC)
message(SEND_ERROR "You need to build at least one flavor of libzstd")
endif()
# Define library directory, where sources and header files are located
include_directories(${LIBRARY_DIR} ${LIBRARY_DIR}/common)
file(GLOB CommonSources ${LIBRARY_DIR}/common/*.c)
file(GLOB CompressSources ${LIBRARY_DIR}/compress/*.c)
if (MSVC)
file(GLOB DecompressSources ${LIBRARY_DIR}/decompress/*.c)
add_compile_options(-DZSTD_DISABLE_ASM)
else ()
file(GLOB DecompressSources ${LIBRARY_DIR}/decompress/*.c ${LIBRARY_DIR}/decompress/*.S)
endif ()
file(GLOB DictBuilderSources ${LIBRARY_DIR}/dictBuilder/*.c)
set(Sources
${CommonSources}
${CompressSources}
${DecompressSources}
${DictBuilderSources})
file(GLOB CommonHeaders ${LIBRARY_DIR}/common/*.h)
file(GLOB CompressHeaders ${LIBRARY_DIR}/compress/*.h)
file(GLOB DecompressHeaders ${LIBRARY_DIR}/decompress/*.h)
file(GLOB DictBuilderHeaders ${LIBRARY_DIR}/dictBuilder/*.h)
set(Headers
${LIBRARY_DIR}/zstd.h
${CommonHeaders}
${CompressHeaders}
${DecompressHeaders}
${DictBuilderHeaders})
if (ZSTD_LEGACY_SUPPORT)
set(LIBRARY_LEGACY_DIR ${LIBRARY_DIR}/legacy)
include_directories(${LIBRARY_LEGACY_DIR})
set(Sources ${Sources}
${LIBRARY_LEGACY_DIR}/zstd_v01.c
${LIBRARY_LEGACY_DIR}/zstd_v02.c
${LIBRARY_LEGACY_DIR}/zstd_v03.c
${LIBRARY_LEGACY_DIR}/zstd_v04.c
${LIBRARY_LEGACY_DIR}/zstd_v05.c
${LIBRARY_LEGACY_DIR}/zstd_v06.c
${LIBRARY_LEGACY_DIR}/zstd_v07.c)
set(Headers ${Headers}
${LIBRARY_LEGACY_DIR}/zstd_legacy.h
${LIBRARY_LEGACY_DIR}/zstd_v01.h
${LIBRARY_LEGACY_DIR}/zstd_v02.h
${LIBRARY_LEGACY_DIR}/zstd_v03.h
${LIBRARY_LEGACY_DIR}/zstd_v04.h
${LIBRARY_LEGACY_DIR}/zstd_v05.h
${LIBRARY_LEGACY_DIR}/zstd_v06.h
${LIBRARY_LEGACY_DIR}/zstd_v07.h)
endif ()
if (MSVC)
set(MSVC_RESOURCE_DIR ${ZSTD_SOURCE_DIR}/build/VS2010/libzstd-dll)
set(PlatformDependResources ${MSVC_RESOURCE_DIR}/libzstd-dll.rc)
endif ()
# Explicitly set the language to C for all files, including ASM files.
# Our assembly expects to be compiled by a C compiler, and is only enabled for
# __GNUC__ compatible compilers. Otherwise all the ASM code is disabled by
# macros.
set_source_files_properties(${Sources} PROPERTIES LANGUAGE C)
# Split project to static and shared libraries build
set(library_targets)
if (ZSTD_BUILD_SHARED)
add_library(libzstd_shared SHARED ${Sources} ${Headers} ${PlatformDependResources})
list(APPEND library_targets libzstd_shared)
if (ZSTD_MULTITHREAD_SUPPORT)
set_property(TARGET libzstd_shared APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_MULTITHREAD")
if (UNIX)
target_link_libraries(libzstd_shared ${THREADS_LIBS})
endif ()
endif()
endif ()
if (ZSTD_BUILD_STATIC)
add_library(libzstd_static STATIC ${Sources} ${Headers})
list(APPEND library_targets libzstd_static)
if (ZSTD_MULTITHREAD_SUPPORT)
set_property(TARGET libzstd_static APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_MULTITHREAD")
if (UNIX)
target_link_libraries(libzstd_static ${THREADS_LIBS})
endif ()
endif ()
endif ()
# Add specific compile definitions for MSVC project
if (MSVC)
if (ZSTD_BUILD_SHARED)
set_property(TARGET libzstd_shared APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_DLL_EXPORT=1;ZSTD_HEAPMODE=0;_CONSOLE;_CRT_SECURE_NO_WARNINGS")
endif ()
if (ZSTD_BUILD_STATIC)
set_property(TARGET libzstd_static APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_HEAPMODE=0;_CRT_SECURE_NO_WARNINGS")
endif ()
endif ()
# With MSVC static library needs to be renamed to avoid conflict with import library
if (MSVC OR (WIN32 AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT MINGW))
set(STATIC_LIBRARY_BASE_NAME zstd_static)
else ()
set(STATIC_LIBRARY_BASE_NAME zstd)
endif ()
# Define static and shared library names
if (ZSTD_BUILD_SHARED)
set_target_properties(
libzstd_shared
PROPERTIES
OUTPUT_NAME zstd
VERSION ${zstd_VERSION_MAJOR}.${zstd_VERSION_MINOR}.${zstd_VERSION_PATCH}
SOVERSION ${zstd_VERSION_MAJOR})
endif ()
if (ZSTD_BUILD_STATIC)
set_target_properties(
libzstd_static
PROPERTIES
POSITION_INDEPENDENT_CODE On
OUTPUT_NAME ${STATIC_LIBRARY_BASE_NAME})
endif ()
# pkg-config
include(JoinPaths) # can be replaced by cmake_path(APPEND) in CMake 3.20
set(PREFIX "${CMAKE_INSTALL_PREFIX}")
set(EXEC_PREFIX "\${prefix}")
join_paths(LIBDIR "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")
join_paths(INCLUDEDIR "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
set(LIBS_PRIVATE "${THREADS_LIBS}")
set(VERSION "${zstd_VERSION}")
configure_file("${LIBRARY_DIR}/libzstd.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/libzstd.pc" @ONLY)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libzstd.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
# install target
install(FILES
"${LIBRARY_DIR}/zstd.h"
"${LIBRARY_DIR}/zdict.h"
"${LIBRARY_DIR}/zstd_errors.h"
DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
install(TARGETS ${library_targets}
EXPORT zstdExports
INCLUDES DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
BUNDLE DESTINATION "${CMAKE_INSTALL_BINDIR}"
)
# uninstall target
if (NOT TARGET uninstall)
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/cmake_uninstall.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
IMMEDIATE @ONLY)
add_custom_target(uninstall
COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
endif ()

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if(NOT EXISTS "@CMAKE_BINARY_DIR@/install_manifest.txt")
message(FATAL_ERROR "Cannot find install manifest: @CMAKE_BINARY_DIR@/install_manifest.txt")
endif()
file(READ "@CMAKE_BINARY_DIR@/install_manifest.txt" files)
string(REGEX REPLACE "\n" ";" files "${files}")
foreach(file ${files})
message(STATUS "Uninstalling $ENV{DESTDIR}${file}")
if(IS_SYMLINK "$ENV{DESTDIR}${file}" OR EXISTS "$ENV{DESTDIR}${file}")
exec_program(
"@CMAKE_COMMAND@" ARGS "-E remove \"$ENV{DESTDIR}${file}\""
OUTPUT_VARIABLE rm_out
RETURN_VALUE rm_retval
)
if(NOT "${rm_retval}" STREQUAL 0)
message(FATAL_ERROR "Problem when removing $ENV{DESTDIR}${file}")
endif()
else()
message(STATUS "File $ENV{DESTDIR}${file} does not exist.")
endif()
endforeach()

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# produced by make
zstd
zstd-frugal
unzstd
zstdcat

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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# ################################################################
project(programs C)
set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
# Define programs directory, where sources and header files are located
set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
set(PROGRAMS_DIR ${ZSTD_SOURCE_DIR}/programs)
include_directories(${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${LIBRARY_DIR}/compress ${LIBRARY_DIR}/dictBuilder)
if (ZSTD_LEGACY_SUPPORT)
set(PROGRAMS_LEGACY_DIR ${PROGRAMS_DIR}/legacy)
include_directories(${PROGRAMS_LEGACY_DIR} ${LIBRARY_DIR}/legacy)
endif ()
if (ZSTD_PROGRAMS_LINK_SHARED)
set(PROGRAMS_ZSTD_LINK_TARGET libzstd_shared)
else ()
set(PROGRAMS_ZSTD_LINK_TARGET libzstd_static)
endif ()
if (MSVC)
set(MSVC_RESOURCE_DIR ${ZSTD_SOURCE_DIR}/build/VS2010/zstd)
set(PlatformDependResources ${MSVC_RESOURCE_DIR}/zstd.rc)
endif ()
add_executable(zstd ${PROGRAMS_DIR}/zstdcli.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${PROGRAMS_DIR}/fileio.c ${PROGRAMS_DIR}/fileio_asyncio.c ${PROGRAMS_DIR}/benchfn.c ${PROGRAMS_DIR}/benchzstd.c ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/dibio.c ${PROGRAMS_DIR}/zstdcli_trace.c ${PlatformDependResources})
target_link_libraries(zstd ${PROGRAMS_ZSTD_LINK_TARGET})
if (CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
target_link_libraries(zstd rt)
endif ()
install(TARGETS zstd
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
BUNDLE DESTINATION "${CMAKE_INSTALL_BINDIR}")
if (UNIX)
add_custom_target(zstdcat ALL ${CMAKE_COMMAND} -E create_symlink zstd zstdcat DEPENDS zstd COMMENT "Creating zstdcat symlink")
add_custom_target(unzstd ALL ${CMAKE_COMMAND} -E create_symlink zstd unzstd DEPENDS zstd COMMENT "Creating unzstd symlink")
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/zstdcat DESTINATION "${CMAKE_INSTALL_BINDIR}")
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/unzstd DESTINATION "${CMAKE_INSTALL_BINDIR}")
install(PROGRAMS ${PROGRAMS_DIR}/zstdgrep DESTINATION "${CMAKE_INSTALL_BINDIR}")
install(PROGRAMS ${PROGRAMS_DIR}/zstdless DESTINATION "${CMAKE_INSTALL_BINDIR}")
add_custom_target(zstd.1 ALL
${CMAKE_COMMAND} -E copy ${PROGRAMS_DIR}/zstd.1 .
COMMENT "Copying manpage zstd.1")
add_custom_target(zstdgrep.1 ALL
${CMAKE_COMMAND} -E copy ${PROGRAMS_DIR}/zstdgrep.1 .
COMMENT "Copying manpage zstdgrep.1")
add_custom_target(zstdless.1 ALL
${CMAKE_COMMAND} -E copy ${PROGRAMS_DIR}/zstdless.1 .
COMMENT "Copying manpage zstdless.1")
add_custom_target(zstdcat.1 ALL ${CMAKE_COMMAND} -E create_symlink zstd.1 zstdcat.1 DEPENDS zstd.1 COMMENT "Creating zstdcat.1 symlink")
add_custom_target(unzstd.1 ALL ${CMAKE_COMMAND} -E create_symlink zstd.1 unzstd.1 DEPENDS zstd.1 COMMENT "Creating unzstd.1 symlink")
# Define MAN_INSTALL_DIR if necessary
if (MAN_INSTALL_DIR)
else ()
set(MAN_INSTALL_DIR ${CMAKE_INSTALL_MANDIR}/man1)
endif ()
install(FILES
${CMAKE_CURRENT_BINARY_DIR}/zstd.1
${CMAKE_CURRENT_BINARY_DIR}/zstdcat.1
${CMAKE_CURRENT_BINARY_DIR}/unzstd.1
${CMAKE_CURRENT_BINARY_DIR}/zstdgrep.1
${CMAKE_CURRENT_BINARY_DIR}/zstdless.1
DESTINATION "${MAN_INSTALL_DIR}")
add_executable(zstd-frugal ${PROGRAMS_DIR}/zstdcli.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${PROGRAMS_DIR}/fileio.c ${PROGRAMS_DIR}/fileio_asyncio.c)
target_link_libraries(zstd-frugal ${PROGRAMS_ZSTD_LINK_TARGET})
set_property(TARGET zstd-frugal APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_NOBENCH;ZSTD_NODICT;ZSTD_NOTRACE")
endif ()
# Add multi-threading support definitions
if (ZSTD_MULTITHREAD_SUPPORT)
set_property(TARGET zstd APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_MULTITHREAD")
if (UNIX)
target_link_libraries(zstd ${THREADS_LIBS})
add_custom_target(zstdmt ALL ${CMAKE_COMMAND} -E create_symlink zstd zstdmt DEPENDS zstd COMMENT "Creating zstdmt symlink")
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/zstdmt DESTINATION "${CMAKE_INSTALL_BINDIR}")
endif ()
endif ()
option(ZSTD_ZLIB_SUPPORT "ZLIB SUPPORT" OFF)
option(ZSTD_LZMA_SUPPORT "LZMA SUPPORT" OFF)
option(ZSTD_LZ4_SUPPORT "LZ4 SUPPORT" OFF)
# Add gzip support
if (ZSTD_ZLIB_SUPPORT)
find_package(ZLIB REQUIRED)
if (ZLIB_FOUND)
include_directories(${ZLIB_INCLUDE_DIRS})
target_link_libraries(zstd ${ZLIB_LIBRARIES})
set_property(TARGET zstd APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_GZCOMPRESS;ZSTD_GZDECOMPRESS")
else ()
message(SEND_ERROR "zlib library is missing")
endif ()
endif ()
# Add lzma support
if (ZSTD_LZMA_SUPPORT)
find_package(LibLZMA REQUIRED)
if (LIBLZMA_FOUND)
include_directories(${LIBLZMA_INCLUDE_DIRS})
target_link_libraries(zstd ${LIBLZMA_LIBRARIES})
set_property(TARGET zstd APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_LZMACOMPRESS;ZSTD_LZMADECOMPRESS")
else ()
message(SEND_ERROR "lzma library is missing")
endif ()
endif ()
# Add lz4 support
if (ZSTD_LZ4_SUPPORT)
find_package(LibLZ4 REQUIRED)
if (LIBLZ4_FOUND)
include_directories(${LIBLZ4_INCLUDE_DIRS})
target_link_libraries(zstd ${LIBLZ4_LIBRARIES})
set_property(TARGET zstd APPEND PROPERTY COMPILE_DEFINITIONS "ZSTD_LZ4COMPRESS;ZSTD_LZ4DECOMPRESS")
else ()
message(SEND_ERROR "lz4 library is missing")
endif ()
endif ()

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# produced by make
datagen
fullbench
fuzzer
paramgrill

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# ################################################################
# zstd - Makefile
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# BSD license
#
# Redistribution and use in source and binary forms, with or without modification,
# are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
#
# * Redistributions in binary form must reproduce the above copyright notice, this
# list of conditions and the following disclaimer in the documentation and/or
# other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
# ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# You can contact the author at :
# - zstd homepage : https://facebook.github.io/zstd/
# ################################################################
project(tests)
# name: Cache variable name. The value is expected to be a semicolon-separated
# list of command line flags
# default_value: Value to initialize the option with. Can be space separated.
function(AddTestFlagsOption name default_value doc)
string(STRIP "${default_value}" default_value)
string(REGEX REPLACE " +" ";" default_value "${default_value}")
set(${name} ${default_value} CACHE STRING "${doc}")
mark_as_advanced(${name})
endfunction()
set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
# Define programs directory, where sources and header files are located
set(LIBRARY_DIR ${ZSTD_SOURCE_DIR}/lib)
set(PROGRAMS_DIR ${ZSTD_SOURCE_DIR}/programs)
set(TESTS_DIR ${ZSTD_SOURCE_DIR}/tests)
include_directories(${TESTS_DIR} ${PROGRAMS_DIR} ${LIBRARY_DIR} ${LIBRARY_DIR}/common ${LIBRARY_DIR}/compress ${LIBRARY_DIR}/dictBuilder)
add_executable(datagen ${PROGRAMS_DIR}/datagen.c ${TESTS_DIR}/datagencli.c)
target_link_libraries(datagen libzstd_static)
#
# fullbench
#
add_executable(fullbench ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${PROGRAMS_DIR}/benchfn.c ${PROGRAMS_DIR}/benchzstd.c ${TESTS_DIR}/fullbench.c)
if (NOT MSVC)
target_compile_options(fullbench PRIVATE "-Wno-deprecated-declarations")
endif()
target_link_libraries(fullbench libzstd_static)
add_test(NAME fullbench COMMAND fullbench ${ZSTD_FULLBENCH_FLAGS})
#
# fuzzer
#
add_executable(fuzzer ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${TESTS_DIR}/fuzzer.c)
if (NOT MSVC)
target_compile_options(fuzzer PRIVATE "-Wno-deprecated-declarations")
endif()
target_link_libraries(fuzzer libzstd_static)
AddTestFlagsOption(ZSTD_FUZZER_FLAGS "$ENV{FUZZERTEST} $ENV{FUZZER_FLAGS}"
"Semicolon-separated list of flags to pass to the fuzzer test (see `fuzzer -h` for usage)")
add_test(NAME fuzzer COMMAND fuzzer ${ZSTD_FUZZER_FLAGS})
# Disable the timeout since the run time is too long for the default timeout of
# 1500 seconds and varies considerably between low-end and high-end CPUs.
# set_tests_properties(fuzzer PROPERTIES TIMEOUT 0)
#
# zstreamtest
#
add_executable(zstreamtest ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${TESTS_DIR}/seqgen.c ${TESTS_DIR}/zstreamtest.c ${TESTS_DIR}/external_matchfinder.c)
if (NOT MSVC)
target_compile_options(zstreamtest PRIVATE "-Wno-deprecated-declarations")
endif()
target_link_libraries(zstreamtest libzstd_static)
AddTestFlagsOption(ZSTD_ZSTREAM_FLAGS "$ENV{ZSTREAM_TESTTIME} $ENV{FUZZER_FLAGS}"
"Semicolon-separated list of flags to pass to the zstreamtest test (see `zstreamtest -h` for usage)")
add_test(NAME zstreamtest COMMAND zstreamtest ${ZSTD_ZSTREAM_FLAGS})
#
# playTests.sh
#
AddTestFlagsOption(ZSTD_PLAYTESTS_FLAGS "$ENV{PLAYTESTS_FLAGS}"
"Semicolon-separated list of flags to pass to the playTests.sh test")
add_test(NAME playTests COMMAND sh -c "\"${TESTS_DIR}/playTests.sh\" ${ZSTD_PLAYTESTS_FLAGS}")
find_program(UNAME uname) # Run script only in unix shell environments
if (ZSTD_BUILD_PROGRAMS AND UNAME)
set_property(TEST playTests APPEND PROPERTY ENVIRONMENT
"ZSTD_BIN=$<TARGET_FILE:zstd>"
"DATAGEN_BIN=$<TARGET_FILE:datagen>"
)
else()
message(STATUS "Disabling playTests.sh test because requirements not met")
set_tests_properties(playTests PROPERTIES DISABLED YES)
endif()
# Label the "Medium" set of tests (see TESTING.md)
set_property(TEST fuzzer zstreamtest playTests APPEND PROPERTY LABELS Medium)
add_executable(paramgrill ${PROGRAMS_DIR}/benchfn.c ${PROGRAMS_DIR}/benchzstd.c ${PROGRAMS_DIR}/datagen.c ${PROGRAMS_DIR}/util.c ${PROGRAMS_DIR}/timefn.c ${TESTS_DIR}/paramgrill.c)
if (UNIX)
target_link_libraries(paramgrill libzstd_static m) #m is math library
else()
target_link_libraries(paramgrill libzstd_static)
endif ()

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include("${CMAKE_CURRENT_LIST_DIR}/zstdTargets.cmake")

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#!/usr/bin/env python3
# #############################################################################
# Copyright (c) 2018-present lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
import re
def find_version_tuple(filepath):
version_file_data = None
with open(filepath) as fd:
version_file_data = fd.read()
patterns = r"""#\s*define\s+ZSTD_VERSION_MAJOR\s+([0-9]+)
#\s*define\s+ZSTD_VERSION_MINOR\s+([0-9]+)
#\s*define\s+ZSTD_VERSION_RELEASE\s+([0-9]+)
"""
regex = re.compile(patterns, re.MULTILINE)
version_match = regex.search(version_file_data)
if version_match:
return version_match.groups()
raise Exception("Unable to find version string")
def main():
import argparse
parser = argparse.ArgumentParser(description='Print zstd version from lib/zstd.h')
parser.add_argument('file', help='path to lib/zstd.h')
args = parser.parse_args()
version_tuple = find_version_tuple(args.file)
print('.'.join(version_tuple))
if __name__ == '__main__':
main()

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#!/usr/bin/env python3
# #############################################################################
# Copyright (c) 2018-present lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
# This file should be synced with https://github.com/lzutao/meson-symlink
import os
import pathlib # since Python 3.4
def install_symlink(src, dst, install_dir, dst_is_dir=False, dir_mode=0o777):
if not install_dir.exists():
install_dir.mkdir(mode=dir_mode, parents=True, exist_ok=True)
if not install_dir.is_dir():
raise NotADirectoryError(install_dir)
new_dst = install_dir.joinpath(dst)
if new_dst.is_symlink() and os.readlink(new_dst) == src:
print('File exists: {!r} -> {!r}'.format(new_dst, src))
return
print('Installing symlink {!r} -> {!r}'.format(new_dst, src))
new_dst.symlink_to(src, target_is_directory=dst_is_dir)
def main():
import argparse
parser = argparse.ArgumentParser(description='Install a symlink',
usage='{0} [-h] [-d] [-m MODE] source dest install_dir\n\n'
'example:\n'
' {0} dash sh /bin'.format(pathlib.Path(__file__).name))
parser.add_argument('source', help='target to link')
parser.add_argument('dest', help='link name')
parser.add_argument('install_dir', help='installation directory')
parser.add_argument('-d', '--isdir',
action='store_true',
help='dest is a directory')
parser.add_argument('-m', '--mode',
help='directory mode on creating if not exist',
default='0o755')
args = parser.parse_args()
dir_mode = int(args.mode, 8)
meson_destdir = os.environ.get('MESON_INSTALL_DESTDIR_PREFIX', default='')
install_dir = pathlib.Path(meson_destdir, args.install_dir)
install_symlink(args.source, args.dest, install_dir, args.isdir, dir_mode)
if __name__ == '__main__':
main()

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Meson build system for zstandard
================================
Meson is a build system designed to optimize programmer productivity.
It aims to do this by providing simple, out-of-the-box support for
modern software development tools and practices, such as unit tests,
coverage reports, Valgrind, CCache and the like.
This Meson build system is provided with no guarantee and maintained
by Dima Krasner \<dima@dimakrasner.com\>.
It outputs one `libzstd`, either shared or static, depending on
`default_library` option.
## How to build
`cd` to this meson directory (`build/meson`)
```sh
meson setup -Dbin_programs=true -Dbin_contrib=true builddir
cd builddir
ninja # to build
ninja install # to install
```
You might want to install it in staging directory:
```sh
DESTDIR=./staging ninja install
```
To configure build options, use:
```sh
meson configure
```
See [man meson(1)](https://manpages.debian.org/testing/meson/meson.1.en.html).

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# #############################################################################
# Copyright (c) 2018-present lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
zstd_rootdir = '../../../..'
gen_html_includes = include_directories(join_paths(zstd_rootdir, 'programs'),
join_paths(zstd_rootdir, 'lib'),
join_paths(zstd_rootdir, 'lib/common'),
join_paths(zstd_rootdir, 'contrib/gen_html'))
gen_html = executable('gen_html',
join_paths(zstd_rootdir, 'contrib/gen_html/gen_html.cpp'),
include_directories: gen_html_includes,
native: true,
install: false)
# Update zstd manual
zstd_manual_html = custom_target('zstd_manual.html',
output : 'zstd_manual.html',
command : [gen_html,
zstd_version,
join_paths(meson.current_source_dir(), zstd_rootdir, 'lib/zstd.h'),
'@OUTPUT@'],
install : false)

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# #############################################################################
# Copyright (c) 2018-present Dima Krasner <dima@dimakrasner.com>
# lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
subdir('pzstd')
subdir('gen_html')

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# #############################################################################
# Copyright (c) 2018-present lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
zstd_rootdir = '../../../..'
pzstd_includes = include_directories(join_paths(zstd_rootdir, 'programs'),
join_paths(zstd_rootdir, 'contrib/pzstd'))
pzstd_sources = [join_paths(zstd_rootdir, 'programs/util.c'),
join_paths(zstd_rootdir, 'contrib/pzstd/main.cpp'),
join_paths(zstd_rootdir, 'contrib/pzstd/Options.cpp'),
join_paths(zstd_rootdir, 'contrib/pzstd/Pzstd.cpp'),
join_paths(zstd_rootdir, 'contrib/pzstd/SkippableFrame.cpp')]
pzstd = executable('pzstd',
pzstd_sources,
cpp_args: pzstd_warning_flags,
include_directories: pzstd_includes,
dependencies: [ libzstd_dep, thread_dep ],
override_options: ['b_ndebug=true'],
install: true)

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# #############################################################################
# Copyright (c) 2018-present Dima Krasner <dima@dimakrasner.com>
# lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
zstd_rootdir = '../../..'
libzstd_includes = [include_directories(join_paths(zstd_rootdir,'lib'),
join_paths(zstd_rootdir, 'lib/common'),
join_paths(zstd_rootdir, 'lib/compress'),
join_paths(zstd_rootdir, 'lib/decompress'),
join_paths(zstd_rootdir, 'lib/dictBuilder'))]
libzstd_sources = [join_paths(zstd_rootdir, 'lib/common/entropy_common.c'),
join_paths(zstd_rootdir, 'lib/common/fse_decompress.c'),
join_paths(zstd_rootdir, 'lib/common/threading.c'),
join_paths(zstd_rootdir, 'lib/common/pool.c'),
join_paths(zstd_rootdir, 'lib/common/zstd_common.c'),
join_paths(zstd_rootdir, 'lib/common/error_private.c'),
join_paths(zstd_rootdir, 'lib/common/xxhash.c'),
join_paths(zstd_rootdir, 'lib/compress/hist.c'),
join_paths(zstd_rootdir, 'lib/compress/fse_compress.c'),
join_paths(zstd_rootdir, 'lib/compress/huf_compress.c'),
join_paths(zstd_rootdir, 'lib/compress/zstd_compress.c'),
join_paths(zstd_rootdir, 'lib/compress/zstd_compress_literals.c'),
join_paths(zstd_rootdir, 'lib/compress/zstd_compress_sequences.c'),
join_paths(zstd_rootdir, 'lib/compress/zstd_compress_superblock.c'),
join_paths(zstd_rootdir, 'lib/compress/zstdmt_compress.c'),
join_paths(zstd_rootdir, 'lib/compress/zstd_fast.c'),
join_paths(zstd_rootdir, 'lib/compress/zstd_double_fast.c'),
join_paths(zstd_rootdir, 'lib/compress/zstd_lazy.c'),
join_paths(zstd_rootdir, 'lib/compress/zstd_opt.c'),
join_paths(zstd_rootdir, 'lib/compress/zstd_ldm.c'),
join_paths(zstd_rootdir, 'lib/decompress/huf_decompress.c'),
join_paths(zstd_rootdir, 'lib/decompress/zstd_decompress.c'),
join_paths(zstd_rootdir, 'lib/decompress/zstd_decompress_block.c'),
join_paths(zstd_rootdir, 'lib/decompress/zstd_ddict.c'),
join_paths(zstd_rootdir, 'lib/dictBuilder/cover.c'),
join_paths(zstd_rootdir, 'lib/dictBuilder/fastcover.c'),
join_paths(zstd_rootdir, 'lib/dictBuilder/divsufsort.c'),
join_paths(zstd_rootdir, 'lib/dictBuilder/zdict.c')]
# really we need anything that defines __GNUC__ as that is what ZSTD_ASM_SUPPORTED is gated on
# but these are the two compilers that are supported in tree and actually handle this correctly
# Otherwise, explicitly disable assembly.
if [compiler_gcc, compiler_clang].contains(cc_id)
libzstd_sources += join_paths(zstd_rootdir, 'lib/decompress/huf_decompress_amd64.S')
else
add_project_arguments('-DZSTD_DISABLE_ASM', language: 'c')
endif
# Explicit define legacy support
add_project_arguments('-DZSTD_LEGACY_SUPPORT=@0@'.format(legacy_level),
language: 'c')
if legacy_level == 0
message('Legacy support: DISABLED')
else
# See ZSTD_LEGACY_SUPPORT of lib/README.md
message('Enable legacy support back to version 0.@0@'.format(legacy_level))
libzstd_includes += [ include_directories(join_paths(zstd_rootdir, 'lib/legacy')) ]
foreach i : [1, 2, 3, 4, 5, 6, 7]
if legacy_level <= i
libzstd_sources += join_paths(zstd_rootdir, 'lib/legacy/zstd_v0@0@.c'.format(i))
endif
endforeach
endif
libzstd_deps = []
if use_multi_thread
message('Enable multi-threading support')
add_project_arguments('-DZSTD_MULTITHREAD', language: 'c')
libzstd_deps = [ thread_dep ]
endif
libzstd_c_args = []
if cc_id == compiler_msvc
if default_library_type != 'static'
libzstd_sources += [windows_mod.compile_resources(
join_paths(zstd_rootdir, 'build/VS2010/libzstd-dll/libzstd-dll.rc'),
include_directories: libzstd_includes)]
libzstd_c_args += ['-DZSTD_DLL_EXPORT=1',
'-DZSTD_HEAPMODE=0',
'-D_CONSOLE',
'-D_CRT_SECURE_NO_WARNINGS']
else
libzstd_c_args += ['-DZSTD_HEAPMODE=0',
'-D_CRT_SECURE_NO_WARNINGS']
endif
endif
mingw_ansi_stdio_flags = []
if host_machine_os == os_windows and cc_id == compiler_gcc
mingw_ansi_stdio_flags = [ '-D__USE_MINGW_ANSI_STDIO' ]
endif
libzstd_c_args += mingw_ansi_stdio_flags
libzstd_debug_cflags = []
if use_debug
libzstd_c_args += '-DDEBUGLEVEL=@0@'.format(debug_level)
if cc_id == compiler_gcc or cc_id == compiler_clang
libzstd_debug_cflags = ['-Wstrict-aliasing=1', '-Wswitch-enum',
'-Wdeclaration-after-statement', '-Wstrict-prototypes',
'-Wundef', '-Wpointer-arith', '-Wvla',
'-Wformat=2', '-Winit-self', '-Wfloat-equal', '-Wwrite-strings',
'-Wredundant-decls', '-Wmissing-prototypes', '-Wc++-compat']
endif
endif
libzstd_c_args += cc.get_supported_arguments(libzstd_debug_cflags)
libzstd = library('zstd',
libzstd_sources,
include_directories: libzstd_includes,
c_args: libzstd_c_args,
gnu_symbol_visibility: 'hidden',
dependencies: libzstd_deps,
install: true,
version: zstd_libversion)
libzstd_dep = declare_dependency(link_with: libzstd,
include_directories: libzstd_includes)
# we link to both:
# - the shared library (for public symbols)
# - the static library (for private symbols)
#
# this is needed because internally private symbols are used all the time, and
# -fvisibility=hidden means those cannot be found
if get_option('default_library') == 'static'
libzstd_static = libzstd
libzstd_internal_dep = libzstd_dep
else
if get_option('default_library') == 'shared'
libzstd_static = static_library('zstd_objlib',
objects: libzstd.extract_all_objects(recursive: true),
build_by_default: false)
else
libzstd_static = libzstd.get_static_lib()
endif
if cc_id == compiler_msvc
# msvc does not actually support linking to both, but errors out with:
# error LNK2005: ZSTD_<foo> already defined in zstd.lib(zstd-1.dll)
libzstd_internal_dep = declare_dependency(link_with: libzstd_static)
else
libzstd_internal_dep = declare_dependency(link_with: libzstd,
# the static library must be linked after the shared one
dependencies: declare_dependency(link_with: libzstd_static))
endif
endif
pkgconfig.generate(libzstd,
name: 'libzstd',
filebase: 'libzstd',
description: 'fast lossless compression algorithm library',
version: zstd_libversion,
url: 'https://facebook.github.io/zstd/')
install_headers(join_paths(zstd_rootdir, 'lib/zstd.h'),
join_paths(zstd_rootdir, 'lib/zdict.h'),
join_paths(zstd_rootdir, 'lib/zstd_errors.h'))

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# #############################################################################
# Copyright (c) 2018-present Dima Krasner <dima@dimakrasner.com>
# lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
project('zstd',
['c', 'cpp'],
license: ['BSD', 'GPLv2'],
default_options : [
# There shouldn't be any need to force a C standard convention for zstd
# but in case one would want that anyway, this can be done here.
# 'c_std=gnu99',
# c++11 standard is useful for pzstd
'cpp_std=c++11',
'buildtype=release',
'warning_level=3',
# -Wdocumentation does not actually pass, nor do the test binaries,
# so this isn't safe
#'werror=true'
],
version: run_command(
find_program('GetZstdLibraryVersion.py'), '../../lib/zstd.h',
check: true).stdout().strip(),
meson_version: '>=0.50.0')
cc = meson.get_compiler('c')
cxx = meson.get_compiler('cpp')
pkgconfig = import('pkgconfig')
windows_mod = import('windows')
host_machine_os = host_machine.system()
os_windows = 'windows'
os_linux = 'linux'
os_darwin = 'darwin'
os_freebsd = 'freebsd'
os_sun = 'sunos'
cc_id = cc.get_id()
compiler_gcc = 'gcc'
compiler_clang = 'clang'
compiler_msvc = 'msvc'
zstd_version = meson.project_version()
zstd_libversion = zstd_version
# =============================================================================
# Installation directories
# =============================================================================
zstd_prefix = get_option('prefix')
zstd_bindir = get_option('bindir')
zstd_datadir = get_option('datadir')
zstd_mandir = get_option('mandir')
zstd_docdir = join_paths(zstd_datadir, 'doc', meson.project_name())
# =============================================================================
# Project options
# =============================================================================
# Built-in options
use_debug = get_option('debug')
buildtype = get_option('buildtype')
default_library_type = get_option('default_library')
# Custom options
debug_level = get_option('debug_level')
legacy_level = get_option('legacy_level')
use_backtrace = get_option('backtrace')
use_static_runtime = get_option('static_runtime')
bin_programs = get_option('bin_programs')
bin_contrib = get_option('bin_contrib')
bin_tests = get_option('bin_tests')
feature_multi_thread = get_option('multi_thread')
feature_zlib = get_option('zlib')
feature_lzma = get_option('lzma')
feature_lz4 = get_option('lz4')
# =============================================================================
# Dependencies
# =============================================================================
libm_dep = cc.find_library('m', required: false)
thread_dep = dependency('threads', required: feature_multi_thread)
use_multi_thread = thread_dep.found()
# Arguments in dependency should be equivalent to those passed to pkg-config
zlib_dep = dependency('zlib', required: feature_zlib)
use_zlib = zlib_dep.found()
lzma_dep = dependency('liblzma', required: feature_lzma)
use_lzma = lzma_dep.found()
lz4_dep = dependency('liblz4', required: feature_lz4)
use_lz4 = lz4_dep.found()
# =============================================================================
# Compiler flags
# =============================================================================
add_project_arguments('-DXXH_NAMESPACE=ZSTD_', language: ['c'])
pzstd_warning_flags = []
if [compiler_gcc, compiler_clang].contains(cc_id)
common_warning_flags = [ '-Wundef', '-Wshadow', '-Wcast-align', '-Wcast-qual' ]
pzstd_warning_flags = ['-Wno-shadow', '-Wno-deprecated-declarations']
if cc_id == compiler_clang
common_warning_flags += ['-Wconversion', '-Wno-sign-conversion', '-Wdocumentation']
endif
cc_compile_flags = cc.get_supported_arguments(common_warning_flags + ['-Wstrict-prototypes'])
cxx_compile_flags = cxx.get_supported_arguments(common_warning_flags)
add_project_arguments(cc_compile_flags, language : 'c')
add_project_arguments(cxx_compile_flags, language : 'cpp')
elif cc_id == compiler_msvc
msvc_compile_flags = [ '/D_UNICODE', '/DUNICODE' ]
if use_multi_thread
msvc_compile_flags += '/MP'
endif
if use_static_runtime
msvc_compile_flags += '/MT'
endif
add_project_arguments(msvc_compile_flags, language: ['c', 'cpp'])
endif
# =============================================================================
# Subdirs
# =============================================================================
subdir('lib')
if bin_programs or bin_tests
subdir('programs')
endif
if bin_tests
subdir('tests')
endif
if bin_contrib
subdir('contrib')
endif

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# #############################################################################
# Copyright (c) 2018-present Dima Krasner <dima@dimakrasner.com>
# lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
# Read guidelines from https://wiki.gnome.org/Initiatives/GnomeGoals/MesonPorting
option('legacy_level', type: 'integer', min: 0, max: 7, value: 5,
description: 'Support any legacy format: 7 to 1 for v0.7+ to v0.1+')
option('debug_level', type: 'integer', min: 0, max: 9, value: 1,
description: 'Enable run-time debug. See lib/common/debug.h')
option('backtrace', type: 'feature', value: 'disabled',
description: 'Display a stack backtrace when execution generates a runtime exception')
option('static_runtime', type: 'boolean', value: false,
description: 'Link to static run-time libraries on MSVC')
option('bin_programs', type: 'boolean', value: true,
description: 'Enable programs build')
option('bin_tests', type: 'boolean', value: false,
description: 'Enable tests build')
option('bin_contrib', type: 'boolean', value: false,
description: 'Enable contrib build')
option('multi_thread', type: 'feature', value: 'enabled',
description: 'Enable multi-threading when pthread is detected')
option('zlib', type: 'feature', value: 'auto',
description: 'Enable zlib support')
option('lzma', type: 'feature', value: 'auto',
description: 'Enable lzma support')
option('lz4', type: 'feature', value: 'auto',
description: 'Enable lz4 support')

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# #############################################################################
# Copyright (c) 2018-present Dima Krasner <dima@dimakrasner.com>
# lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
zstd_rootdir = '../../..'
zstd_programs_sources = [join_paths(zstd_rootdir, 'programs/zstdcli.c'),
join_paths(zstd_rootdir, 'programs/util.c'),
join_paths(zstd_rootdir, 'programs/timefn.c'),
join_paths(zstd_rootdir, 'programs/fileio.c'),
join_paths(zstd_rootdir, 'programs/fileio_asyncio.c'),
join_paths(zstd_rootdir, 'programs/benchfn.c'),
join_paths(zstd_rootdir, 'programs/benchzstd.c'),
join_paths(zstd_rootdir, 'programs/datagen.c'),
join_paths(zstd_rootdir, 'programs/dibio.c'),
join_paths(zstd_rootdir, 'programs/zstdcli_trace.c')]
zstd_deps = [ libzstd_internal_dep ]
zstd_c_args = libzstd_debug_cflags
zstd_frugal_deps = [ libzstd_internal_dep ]
zstd_frugal_c_args = [ '-DZSTD_NOBENCH', '-DZSTD_NODICT', '-DZSTD_NOTRACE' ]
if use_multi_thread
zstd_deps += [ thread_dep ]
zstd_c_args += [ '-DZSTD_MULTITHREAD' ]
zstd_frugal_deps += [ thread_dep ]
zstd_frugal_c_args += [ '-DZSTD_MULTITHREAD' ]
endif
if use_zlib
zstd_deps += [ zlib_dep ]
zstd_c_args += [ '-DZSTD_GZCOMPRESS', '-DZSTD_GZDECOMPRESS' ]
endif
if use_lzma
zstd_deps += [ lzma_dep ]
zstd_c_args += [ '-DZSTD_LZMACOMPRESS', '-DZSTD_LZMADECOMPRESS' ]
endif
if use_lz4
zstd_deps += [ lz4_dep ]
zstd_c_args += [ '-DZSTD_LZ4COMPRESS', '-DZSTD_LZ4DECOMPRESS' ]
endif
export_dynamic_on_windows = false
# explicit backtrace enable/disable for Linux & Darwin
have_execinfo = cc.has_header('execinfo.h', required: use_backtrace)
if not have_execinfo
zstd_c_args += '-DBACKTRACE_ENABLE=0'
elif use_debug and host_machine_os == os_windows # MinGW target
zstd_c_args += '-DBACKTRACE_ENABLE=1'
export_dynamic_on_windows = true
endif
if cc_id == compiler_msvc
if default_library_type != 'static'
zstd_programs_sources += [windows_mod.compile_resources(
join_paths(zstd_rootdir, 'build/VS2010/zstd/zstd.rc'),
include_directories: libzstd_includes)]
endif
endif
zstd = executable('zstd',
zstd_programs_sources,
c_args: zstd_c_args,
dependencies: zstd_deps,
export_dynamic: export_dynamic_on_windows, # Since Meson 0.45.0
build_by_default: bin_programs,
install: bin_programs)
if not bin_programs
# we generate rules to build the programs, but don't install anything
# so do not continue to installing scripts and manpages
subdir_done()
endif
zstd_frugal_sources = [join_paths(zstd_rootdir, 'programs/zstdcli.c'),
join_paths(zstd_rootdir, 'programs/timefn.c'),
join_paths(zstd_rootdir, 'programs/util.c'),
join_paths(zstd_rootdir, 'programs/fileio.c'),
join_paths(zstd_rootdir, 'programs/fileio_asyncio.c')]
# Minimal target, with only zstd compression and decompression.
# No bench. No legacy.
executable('zstd-frugal',
zstd_frugal_sources,
dependencies: zstd_frugal_deps,
c_args: zstd_frugal_c_args,
install: true)
install_data(join_paths(zstd_rootdir, 'programs/zstdgrep'),
join_paths(zstd_rootdir, 'programs/zstdless'),
install_dir: zstd_bindir)
# =============================================================================
# Programs and manpages installing
# =============================================================================
install_man(join_paths(zstd_rootdir, 'programs/zstd.1'),
join_paths(zstd_rootdir, 'programs/zstdgrep.1'),
join_paths(zstd_rootdir, 'programs/zstdless.1'))
InstallSymlink_py = '../InstallSymlink.py'
zstd_man1_dir = join_paths(zstd_mandir, 'man1')
bin_EXT = host_machine_os == os_windows ? '.exe' : ''
man1_EXT = meson.version().version_compare('>=0.49.0') ? '.1' : '.1.gz'
foreach f : ['zstdcat', 'unzstd']
meson.add_install_script(InstallSymlink_py, 'zstd' + bin_EXT, f + bin_EXT, zstd_bindir)
meson.add_install_script(InstallSymlink_py, 'zstd' + man1_EXT, f + man1_EXT, zstd_man1_dir)
endforeach
if use_multi_thread
meson.add_install_script(InstallSymlink_py, 'zstd' + bin_EXT, 'zstdmt' + bin_EXT, zstd_bindir)
meson.add_install_script(InstallSymlink_py, 'zstd' + man1_EXT, 'zstdmt' + man1_EXT, zstd_man1_dir)
endif

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# #############################################################################
# Copyright (c) 2018-present Dima Krasner <dima@dimakrasner.com>
# lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
zstd_rootdir = '../../..'
tests_supported_oses = [os_linux, 'gnu/kfreebsd', os_darwin, 'gnu', 'openbsd',
os_freebsd, 'netbsd', 'dragonfly', os_sun]
# =============================================================================
# Test flags
# =============================================================================
FUZZER_FLAGS = ['--no-big-tests']
FUZZERTEST = '-T200s'
ZSTREAM_TESTTIME = '-T90s'
DECODECORPUS_TESTTIME = '-T30'
# =============================================================================
# Executables
# =============================================================================
test_includes = [ include_directories(join_paths(zstd_rootdir, 'programs')) ]
testcommon_sources = [join_paths(zstd_rootdir, 'programs/datagen.c'),
join_paths(zstd_rootdir, 'programs/util.c'),
join_paths(zstd_rootdir, 'programs/timefn.c'),
join_paths(zstd_rootdir, 'programs/benchfn.c'),
join_paths(zstd_rootdir, 'programs/benchzstd.c')]
testcommon = static_library('testcommon',
testcommon_sources,
# needed due to use of private symbol + -fvisibility=hidden
link_with: libzstd_static)
testcommon_dep = declare_dependency(link_with: testcommon,
dependencies: libzstd_deps,
include_directories: libzstd_includes)
datagen_sources = [join_paths(zstd_rootdir, 'tests/datagencli.c')]
datagen = executable('datagen',
datagen_sources,
c_args: [ '-DNDEBUG' ],
include_directories: test_includes,
dependencies: testcommon_dep,
install: false)
fullbench_sources = [join_paths(zstd_rootdir, 'tests/fullbench.c')]
fullbench = executable('fullbench',
fullbench_sources,
include_directories: test_includes,
dependencies: testcommon_dep,
install: false)
fuzzer_sources = [join_paths(zstd_rootdir, 'tests/fuzzer.c')]
fuzzer = executable('fuzzer',
fuzzer_sources,
include_directories: test_includes,
dependencies: [ testcommon_dep, thread_dep ],
install: false)
zstreamtest_sources = [
join_paths(zstd_rootdir, 'tests/seqgen.c'),
join_paths(zstd_rootdir, 'tests/zstreamtest.c'),
join_paths(zstd_rootdir, 'tests/external_matchfinder.c')]
zstreamtest = executable('zstreamtest',
zstreamtest_sources,
include_directories: test_includes,
dependencies: testcommon_dep,
install: false)
paramgrill_sources = [join_paths(zstd_rootdir, 'tests/paramgrill.c')]
paramgrill = executable('paramgrill',
paramgrill_sources,
include_directories: test_includes,
dependencies: [ testcommon_dep, libm_dep ],
install: false)
roundTripCrash_sources = [join_paths(zstd_rootdir, 'tests/roundTripCrash.c')]
roundTripCrash = executable('roundTripCrash',
roundTripCrash_sources,
dependencies: [ testcommon_dep ],
install: false)
longmatch_sources = [join_paths(zstd_rootdir, 'tests/longmatch.c')]
longmatch = executable('longmatch',
longmatch_sources,
dependencies: [ libzstd_dep ],
install: false)
invalidDictionaries_sources = [join_paths(zstd_rootdir, 'tests/invalidDictionaries.c')]
invalidDictionaries = executable('invalidDictionaries',
invalidDictionaries_sources,
dependencies: [ libzstd_dep ],
install: false)
if 0 < legacy_level and legacy_level <= 4
legacy_sources = [join_paths(zstd_rootdir, 'tests/legacy.c')]
legacy = executable('legacy',
legacy_sources,
# Use -Dlegacy_level build option to control it
#c_args: '-DZSTD_LEGACY_SUPPORT=4',
dependencies: [ libzstd_dep ],
install: false)
endif
decodecorpus_sources = [join_paths(zstd_rootdir, 'tests/decodecorpus.c')]
decodecorpus = executable('decodecorpus',
decodecorpus_sources,
include_directories: test_includes,
dependencies: [ testcommon_dep, libm_dep ],
install: false)
poolTests_sources = [join_paths(zstd_rootdir, 'tests/poolTests.c')]
poolTests = executable('poolTests',
poolTests_sources,
include_directories: test_includes,
dependencies: [ testcommon_dep, thread_dep ],
install: false)
checkTag_sources = [join_paths(zstd_rootdir, 'tests/checkTag.c')]
checkTag = executable('checkTag',
checkTag_sources,
dependencies: [ libzstd_dep ],
install: false)
# =============================================================================
# Tests (Use "meson test --list" to list all tests)
# =============================================================================
if tests_supported_oses.contains(host_machine_os)
valgrind_prog = find_program('valgrind', ['/usr/bin/valgrind'], required: false)
valgrindTest_py = files('valgrindTest.py')
if valgrind_prog.found()
test('valgrindTest',
valgrindTest_py,
args: [valgrind_prog.path(), zstd, datagen, fuzzer, fullbench],
depends: [zstd, datagen, fuzzer, fullbench],
timeout: 600) # Timeout should work on HDD drive
endif
endif
if host_machine_os != os_windows
playTests_sh = find_program(join_paths(zstd_rootdir, 'tests/playTests.sh'), required: true)
# add slow tests only if the meson version is new enough to support
# test setups with default-excluded suites
if meson.version().version_compare('>=0.57.0')
matrix = {'fast': [], 'slow': ['--test-large-data']}
else
matrix = {'fast': []}
endif
foreach suite, opt: matrix
test('test-zstd-'+suite,
playTests_sh,
args: opt,
env: ['ZSTD_BIN=' + zstd.full_path(), 'DATAGEN_BIN=./datagen'],
depends: [datagen, zstd],
suite: suite,
workdir: meson.current_build_dir(),
timeout: 2800) # Timeout should work on HDD drive
endforeach
endif
test('test-fullbench-1',
fullbench,
args: ['-i1'],
depends: [datagen],
timeout: 60)
test('test-fullbench-2',
fullbench,
args: ['-i1', '-P0'],
depends: [datagen],
timeout: 60)
if use_zlib
test('test-fuzzer',
fuzzer,
args: ['-v', FUZZERTEST] + FUZZER_FLAGS,
timeout: 480)
endif
test('test-zstream-1',
zstreamtest,
args: ['-v', ZSTREAM_TESTTIME] + FUZZER_FLAGS,
timeout: 240)
test('test-zstream-3',
zstreamtest,
args: ['--newapi', '-t1', ZSTREAM_TESTTIME] + FUZZER_FLAGS,
timeout: 120)
test('test-longmatch', longmatch, timeout: 36)
test('test-invalidDictionaries', invalidDictionaries) # should be fast
if 0 < legacy_level and legacy_level <= 4
test('test-legacy', legacy) # should be fast
endif
test('test-decodecorpus',
decodecorpus,
args: ['-t', DECODECORPUS_TESTTIME],
timeout: 60)
test('test-poolTests', poolTests) # should be fast
if meson.version().version_compare('>=0.57.0')
add_test_setup('fast',
is_default: true,
exclude_suites: ['slow'])
add_test_setup('slow',
exclude_suites: ['fast'])
endif

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#!/usr/bin/env python3
# #############################################################################
# Copyright (c) 2018-present lzutao <taolzu(at)gmail.com>
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# #############################################################################
import os
import subprocess
import tempfile
def valgrindTest(valgrind, datagen, fuzzer, zstd, fullbench):
VALGRIND_ARGS = [valgrind, '--leak-check=full', '--show-leak-kinds=all', '--error-exitcode=1']
print('\n ---- valgrind tests : memory analyzer ----')
subprocess.check_call([*VALGRIND_ARGS, datagen, '-g50M'], stdout=subprocess.DEVNULL)
if subprocess.call([*VALGRIND_ARGS, zstd],
stdout=subprocess.DEVNULL) == 0:
raise subprocess.SubprocessError('zstd without argument should have failed')
with subprocess.Popen([datagen, '-g80'], stdout=subprocess.PIPE) as p1, \
subprocess.Popen([*VALGRIND_ARGS, zstd, '-', '-c'],
stdin=p1.stdout,
stdout=subprocess.DEVNULL) as p2:
p1.stdout.close() # Allow p1 to receive a SIGPIPE if p2 exits.
p2.communicate()
if p2.returncode != 0:
raise subprocess.SubprocessError()
with subprocess.Popen([datagen, '-g16KB'], stdout=subprocess.PIPE) as p1, \
subprocess.Popen([*VALGRIND_ARGS, zstd, '-vf', '-', '-c'],
stdin=p1.stdout,
stdout=subprocess.DEVNULL) as p2:
p1.stdout.close()
p2.communicate()
if p2.returncode != 0:
raise subprocess.SubprocessError()
with tempfile.NamedTemporaryFile() as tmp_fd:
with subprocess.Popen([datagen, '-g2930KB'], stdout=subprocess.PIPE) as p1, \
subprocess.Popen([*VALGRIND_ARGS, zstd, '-5', '-vf', '-', '-o', tmp_fd.name],
stdin=p1.stdout) as p2:
p1.stdout.close()
p2.communicate()
if p2.returncode != 0:
raise subprocess.SubprocessError()
subprocess.check_call([*VALGRIND_ARGS, zstd, '-vdf', tmp_fd.name, '-c'],
stdout=subprocess.DEVNULL)
with subprocess.Popen([datagen, '-g64MB'], stdout=subprocess.PIPE) as p1, \
subprocess.Popen([*VALGRIND_ARGS, zstd, '-vf', '-', '-c'],
stdin=p1.stdout,
stdout=subprocess.DEVNULL) as p2:
p1.stdout.close()
p2.communicate()
if p2.returncode != 0:
raise subprocess.SubprocessError()
subprocess.check_call([*VALGRIND_ARGS, fuzzer, '-T1mn', '-t1'])
subprocess.check_call([*VALGRIND_ARGS, fullbench, '-i1'])
def main():
import argparse
parser = argparse.ArgumentParser(description='Valgrind tests : memory analyzer')
parser.add_argument('valgrind', help='valgrind path')
parser.add_argument('zstd', help='zstd path')
parser.add_argument('datagen', help='datagen path')
parser.add_argument('fuzzer', help='fuzzer path')
parser.add_argument('fullbench', help='fullbench path')
args = parser.parse_args()
valgrind = args.valgrind
zstd = args.zstd
datagen = args.datagen
fuzzer = args.fuzzer
fullbench = args.fullbench
valgrindTest(valgrind, datagen, fuzzer, zstd, fullbench)
if __name__ == '__main__':
main()

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# build artifacts
zstddeclib.c
zstdenclib.c
zstd.c
zstd.h
# test artifacts
temp*

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# Single File Zstandard Libraries
The script `combine.sh` creates an _amalgamated_ source file that can be used with or without `zstd.h`. This isn't a _header-only_ file but it does offer a similar level of simplicity when integrating into a project.
All it now takes to support Zstd in your own projects is the addition of a single file, two if using the header, with no configuration or further build steps.
Decompressor
------------
This is the most common use case. The decompression library is small, adding, for example, 26kB to an Emscripten compiled WebAssembly project. Native implementations add a little more, 40-70kB depending on the compiler and platform.
Create `zstddeclib.c` from the Zstd source using:
```
cd zstd/build/single_file_libs
python3 combine.py -r ../../lib -x legacy/zstd_legacy.h -o zstddeclib.c zstddeclib-in.c
```
Then add the resulting file to your project (see the [example files](examples)).
`create_single_file_decoder.sh` will run the above script, creating the file `zstddeclib.c` (`build_decoder_test.sh` will also create `zstddeclib.c`, then compile and test the result).
Full Library
------------
The same tool can amalgamate the entire Zstd library for ease of adding both compression and decompression to a project. The [roundtrip example](examples/roundtrip.c) uses the original `zstd.h` with the remaining source files combined into `zstd.c` (currently just over 1.2MB) created from `zstd-in.c`. As with the standalone decoder the most useful compile flags have already been rolled-in and the resulting file can be added to a project as-is.
Create `zstd.c` from the Zstd source using:
```
cd zstd/build/single_file_libs
python3 combine.py -r ../../lib -x legacy/zstd_legacy.h -k zstd.h -o zstd.c zstd-in.c
```
It's possible to create a compressor-only library but since the decompressor is so small in comparison this doesn't bring much of a gain (but for the curious, simply remove the files in the _decompress_ section at the end of `zstd-in.c`).
`create_single_file_library.sh` will run the script to create `zstd.c` (`build_library_test.sh` will also create `zstd.c`, then compile and test the result).

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#!/bin/sh
# Temporary compiled binary
OUT_FILE="tempbin"
# Optional temporary compiled WebAssembly
OUT_WASM="temp.wasm"
# Source files to compile using Emscripten.
IN_FILES="examples/emscripten.c"
# Emscripten build using emcc.
emscripten_emcc_build() {
# Compile the same example as above
CC_FLAGS="-Wall -Wextra -Wshadow -Werror -Os -g0 -flto"
emcc $CC_FLAGS -s WASM=1 -I. -o $OUT_WASM $IN_FILES
# Did compilation work?
if [ $? -ne 0 ]; then
echo "Compiling ${IN_FILES}: FAILED"
exit 1
fi
echo "Compiling ${IN_FILES}: PASSED"
rm -f $OUT_WASM
}
# Emscripten build using docker.
emscripten_docker_build() {
docker container run --rm \
--volume $PWD:/code \
--workdir /code \
emscripten/emsdk:latest \
emcc $CC_FLAGS -s WASM=1 -I. -o $OUT_WASM $IN_FILES
# Did compilation work?
if [ $? -ne 0 ]; then
echo "Compiling ${IN_FILES} (using docker): FAILED"
exit 1
fi
echo "Compiling ${IN_FILES} (using docker): PASSED"
rm -f $OUT_WASM
}
# Try Emscripten build using emcc or docker.
try_emscripten_build() {
which emcc > /dev/null
if [ $? -eq 0 ]; then
emscripten_emcc_build
return $?
fi
which docker > /dev/null
if [ $? -eq 0 ]; then
emscripten_docker_build
return $?
fi
echo "(Skipping Emscripten test)"
}
# Amalgamate the sources
./create_single_file_decoder.sh
# Did combining work?
if [ $? -ne 0 ]; then
echo "Single file decoder creation script: FAILED"
exit 1
fi
echo "Single file decoder creation script: PASSED"
# Compile the generated output
cc -Wall -Wextra -Wshadow -Werror -Os -g0 -o $OUT_FILE examples/simple.c
# Did compilation work?
if [ $? -ne 0 ]; then
echo "Compiling simple.c: FAILED"
exit 1
fi
echo "Compiling simple.c: PASSED"
# Run then delete the compiled output
./$OUT_FILE
retVal=$?
rm -f $OUT_FILE
# Did the test work?
if [ $retVal -ne 0 ]; then
echo "Running simple.c: FAILED"
exit 1
fi
echo "Running simple.c: PASSED"
# Try Emscripten build if emcc or docker command is available.
try_emscripten_build
exit 0

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#!/bin/sh
# Where to find the sources (only used to copy zstd.h)
ZSTD_SRC_ROOT="../../lib"
# Temporary compiled binary
OUT_FILE="tempbin"
# Optional temporary compiled WebAssembly
OUT_WASM="temp.wasm"
# Source files to compile using Emscripten.
IN_FILES="zstd.c examples/roundtrip.c"
# Emscripten build using emcc.
emscripten_emcc_build() {
# Compile the same example as above
CC_FLAGS="-Wall -Wextra -Wshadow -Werror -Os -g0 -flto"
emcc $CC_FLAGS -s WASM=1 -I. -o $OUT_WASM $IN_FILES
# Did compilation work?
if [ $? -ne 0 ]; then
echo "Compiling ${IN_FILES}: FAILED"
exit 1
fi
echo "Compiling ${IN_FILES}: PASSED"
rm -f $OUT_WASM
}
# Emscripten build using docker.
emscripten_docker_build() {
docker container run --rm \
--volume $PWD:/code \
--workdir /code \
emscripten/emsdk:latest \
emcc $CC_FLAGS -s WASM=1 -I. -o $OUT_WASM $IN_FILES
# Did compilation work?
if [ $? -ne 0 ]; then
echo "Compiling ${IN_FILES} (using docker): FAILED"
exit 1
fi
echo "Compiling ${IN_FILES} (using docker): PASSED"
rm -f $OUT_WASM
}
# Try Emscripten build using emcc or docker.
try_emscripten_build() {
which emcc > /dev/null
if [ $? -eq 0 ]; then
emscripten_emcc_build
return $?
fi
which docker > /dev/null
if [ $? -eq 0 ]; then
emscripten_docker_build
return $?
fi
echo "(Skipping Emscripten test)"
}
# Amalgamate the sources
./create_single_file_library.sh
# Did combining work?
if [ $? -ne 0 ]; then
echo "Single file library creation script: FAILED"
exit 1
fi
echo "Single file library creation script: PASSED"
# Copy the header to here (for the tests)
cp "$ZSTD_SRC_ROOT/zstd.h" examples/zstd.h
# Compile the generated output
cc -Wall -Wextra -Werror -Wshadow -pthread -I. -Os -g0 -o $OUT_FILE zstd.c examples/roundtrip.c
# Did compilation work?
if [ $? -ne 0 ]; then
echo "Compiling roundtrip.c: FAILED"
exit 1
fi
echo "Compiling roundtrip.c: PASSED"
# Run then delete the compiled output
./$OUT_FILE
retVal=$?
rm -f $OUT_FILE
# Did the test work?
if [ $retVal -ne 0 ]; then
echo "Running roundtrip.c: FAILED"
exit 1
fi
echo "Running roundtrip.c: PASSED"
# Try Emscripten build if emcc or docker command is available.
try_emscripten_build
exit 0

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#!/usr/bin/env python3
# Tool to bundle multiple C/C++ source files, inlining any includes.
#
# Note: there are two types of exclusion options: the '-x' flag, which besides
# excluding a file also adds an #error directive in place of the #include, and
# the '-k' flag, which keeps the #include and doesn't inline the file. The
# intended use cases are: '-x' for files that would normally be #if'd out, so
# features that 100% won't be used in the amalgamated file, for which every
# occurrence adds the error, and '-k' for headers that we wish to manually
# include, such as a project's public API, for which occurrences after the first
# are removed.
#
# Todo: the error handling could be better, which currently throws and halts
# (which is functional just not very friendly).
#
# Author: Carl Woffenden, Numfum GmbH (this script is released under a CC0 license/Public Domain)
import argparse, re, sys
from pathlib import Path
from typing import Any, List, Optional, Pattern, Set, TextIO
# Set of file roots when searching (equivalent to -I paths for the compiler).
roots: Set[Path] = set()
# Set of (canonical) file Path objects to exclude from inlining (and not only
# exclude but to add a compiler error directive when they're encountered).
excludes: Set[Path] = set()
# Set of (canonical) file Path objects to keep as include directives.
keeps: Set[Path] = set()
# Whether to keep the #pragma once directives (unlikely, since this will result
# in a warning, but the option is there).
keep_pragma: bool = False
# Destination file object (or stdout if no output file was supplied).
destn: TextIO = sys.stdout
# Set of file Path objects previously inlined (and to ignore if reencountering).
found: Set[Path] = set()
# Compiled regex Pattern to handle "#pragma once" in various formats:
#
# #pragma once
# #pragma once
# # pragma once
# #pragma once
# #pragma once // comment
#
# Ignoring commented versions, same as include_regex.
#
pragma_regex: Pattern = re.compile(r'^\s*#\s*pragma\s*once\s*')
# Compiled regex Pattern to handle the following type of file includes:
#
# #include "file"
# #include "file"
# # include "file"
# #include "file"
# #include "file" // comment
# #include "file" // comment with quote "
#
# And all combinations of, as well as ignoring the following:
#
# #include <file>
# //#include "file"
# /*#include "file"*/
#
# We don't try to catch errors since the compiler will do this (and the code is
# expected to be valid before processing) and we don't care what follows the
# file (whether it's a valid comment or not, since anything after the quoted
# string is ignored)
#
include_regex: Pattern = re.compile(r'^\s*#\s*include\s*"(.+?)"')
# Simple tests to prove include_regex's cases.
#
def test_match_include() -> bool:
if (include_regex.match('#include "file"') and
include_regex.match(' #include "file"') and
include_regex.match('# include "file"') and
include_regex.match('#include "file"') and
include_regex.match('#include "file" // comment')):
if (not include_regex.match('#include <file>') and
not include_regex.match('//#include "file"') and
not include_regex.match('/*#include "file"*/')):
found = include_regex.match('#include "file" // "')
if (found and found.group(1) == 'file'):
print('#include match valid')
return True
return False
# Simple tests to prove pragma_regex's cases.
#
def test_match_pragma() -> bool:
if (pragma_regex.match('#pragma once') and
pragma_regex.match(' #pragma once') and
pragma_regex.match('# pragma once') and
pragma_regex.match('#pragma once') and
pragma_regex.match('#pragma once // comment')):
if (not pragma_regex.match('//#pragma once') and
not pragma_regex.match('/*#pragma once*/')):
print('#pragma once match valid')
return True
return False
# Finds 'file'. First the list of 'root' paths are searched, followed by the
# currently processing file's 'parent' path, returning a valid Path in
# canonical form. If no match is found None is returned.
#
def resolve_include(file: str, parent: Optional[Path] = None) -> Optional[Path]:
for root in roots:
found = root.joinpath(file).resolve()
if (found.is_file()):
return found
if (parent):
found = parent.joinpath(file).resolve();
else:
found = Path(file)
if (found.is_file()):
return found
return None
# Helper to resolve lists of files. 'file_list' is passed in from the arguments
# and each entry resolved to its canonical path (like any include entry, either
# from the list of root paths or the owning file's 'parent', which in this case
# is case is the input file). The results are stored in 'resolved'.
#
def resolve_excluded_files(file_list: Optional[List[str]], resolved: Set[Path], parent: Optional[Path] = None) -> None:
if (file_list):
for filename in file_list:
found = resolve_include(filename, parent)
if (found):
resolved.add(found)
else:
error_line(f'Warning: excluded file not found: {filename}')
# Writes 'line' to the open 'destn' (or stdout).
#
def write_line(line: str) -> None:
print(line, file=destn)
# Logs 'line' to stderr. This is also used for general notifications that we
# don't want to go to stdout (so the source can be piped).
#
def error_line(line: Any) -> None:
print(line, file=sys.stderr)
# Inline the contents of 'file' (with any of its includes also inlined, etc.).
#
# Note: text encoding errors are ignored and replaced with ? when reading the
# input files. This isn't ideal, but it's more than likely in the comments than
# code and a) the text editor has probably also failed to read the same content,
# and b) the compiler probably did too.
#
def add_file(file: Path, file_name: str = None) -> None:
if (file.is_file()):
if (not file_name):
file_name = file.name
error_line(f'Processing: {file_name}')
with file.open('r', errors='replace') as opened:
for line in opened:
line = line.rstrip('\n')
match_include = include_regex.match(line);
if (match_include):
# We have a quoted include directive so grab the file
inc_name = match_include.group(1)
resolved = resolve_include(inc_name, file.parent)
if (resolved):
if (resolved in excludes):
# The file was excluded so error if the compiler uses it
write_line(f'#error Using excluded file: {inc_name} (re-amalgamate source to fix)')
error_line(f'Excluding: {inc_name}')
else:
if (resolved not in found):
# The file was not previously encountered
found.add(resolved)
if (resolved in keeps):
# But the include was flagged to keep as included
write_line(f'/**** *NOT* inlining {inc_name} ****/')
write_line(line)
error_line(f'Not inlining: {inc_name}')
else:
# The file was neither excluded nor seen before so inline it
write_line(f'/**** start inlining {inc_name} ****/')
add_file(resolved, inc_name)
write_line(f'/**** ended inlining {inc_name} ****/')
else:
write_line(f'/**** skipping file: {inc_name} ****/')
else:
# The include file didn't resolve to a file
write_line(f'#error Unable to find: {inc_name}')
error_line(f'Error: Unable to find: {inc_name}')
else:
# Skip any 'pragma once' directives, otherwise write the source line
if (keep_pragma or not pragma_regex.match(line)):
write_line(line)
else:
error_line(f'Error: Invalid file: {file}')
# Start here
parser = argparse.ArgumentParser(description='Amalgamate Tool', epilog=f'example: {sys.argv[0]} -r ../my/path -r ../other/path -o out.c in.c')
parser.add_argument('-r', '--root', action='append', type=Path, help='file root search path')
parser.add_argument('-x', '--exclude', action='append', help='file to completely exclude from inlining')
parser.add_argument('-k', '--keep', action='append', help='file to exclude from inlining but keep the include directive')
parser.add_argument('-p', '--pragma', action='store_true', default=False, help='keep any "#pragma once" directives (removed by default)')
parser.add_argument('-o', '--output', type=argparse.FileType('w'), help='output file (otherwise stdout)')
parser.add_argument('input', type=Path, help='input file')
args = parser.parse_args()
# Fail early on an invalid input (and store it so we don't recurse)
args.input = args.input.resolve(strict=True)
found.add(args.input)
# Resolve all of the root paths upfront (we'll halt here on invalid roots)
if (args.root):
for path in args.root:
roots.add(path.resolve(strict=True))
# The remaining params: so resolve the excluded files and #pragma once directive
resolve_excluded_files(args.exclude, excludes, args.input.parent)
resolve_excluded_files(args.keep, keeps, args.input.parent)
keep_pragma = args.pragma;
# Then recursively process the input file
try:
if (args.output):
destn = args.output
add_file(args.input)
finally:
if (destn):
destn.close()

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#!/bin/sh -e
# Tool to bundle multiple C/C++ source files, inlining any includes.
#
# TODO: ROOTS, FOUND, etc., as arrays (since they fail on paths with spaces)
#
# Author: Carl Woffenden, Numfum GmbH (this script is released under a CC0 license/Public Domain)
# Common file roots
ROOTS="."
# -x option excluded includes
XINCS=""
# -k option includes to keep as include directives
KINCS=""
# Files previously visited
FOUND=""
# Optional destination file (empty string to write to stdout)
DESTN=""
# Whether the "#pragma once" directives should be written to the output
PONCE=0
# Prints the script usage then exits
usage() {
echo "Usage: $0 [-r <path>] [-x <header>] [-k <header>] [-o <outfile>] infile"
echo " -r file root search path"
echo " -x file to completely exclude from inlining"
echo " -k file to exclude from inlining but keep the include directive"
echo " -p keep any '#pragma once' directives (removed by default)"
echo " -o output file (otherwise stdout)"
echo "Example: $0 -r ../my/path - r ../other/path -o out.c in.c"
exit 1
}
# Tests that the grep implementation works as expected (older OSX grep fails)
test_deps() {
if ! echo '#include "foo"' | grep -Eq '^\s*#\s*include\s*".+"'; then
echo "Aborting: the grep implementation fails to parse include lines"
exit 1
fi
if ! echo '"foo.h"' | sed -E 's/"([^"]+)"/\1/' | grep -Eq '^foo\.h$'; then
echo "Aborting: sed is unavailable or non-functional"
exit 1
fi
}
# Test if glob pattern $1 matches subject $2 (see fnmatch(3))
fnmatch() {
case "$2" in
$1)
return 0
;;
esac
return 1
}
# Test if line $1 is local include directive
is_include_line() {
fnmatch "*#*include*" "$1" || return 1
printf "%s\n" "$1" | grep -Eq '^\s*#\s*include\s*".+"'
}
# Test if line $1 is pragma once directive
is_pragma_once_line() {
fnmatch "*#*pragma*once*" "$1" || return 1
printf "%s\n" "$1" | grep -Eq '^\s*#\s*pragma\s*once\s*'
}
# Tests if list $1 has item $2 (returning zero on a match)
# (originally used grep -Eq "(^|\s*)$2(\$|\s*))
readonly list_FS="$IFS"
list_has_item() {
# Re: escaping glob pattern special characters in item string:
#
# bash (tested 3.2.57, 5.1.4), dash (tested 0.5.10.2), NetBSD /bin/sh
# (tested 8.2), and Solaris /bin/sh (tested 11.4) require escaping
# backslashes in a bracket expression despite POSIX specifying that
# backslash loses significance in a bracket expression.
#
# Conversely, neither FreeBSD /bin/sh (tested 12.2) nor OpenBSD /bin/sh
# (tested 7.1) obey backslash-escaping in case statement patterns even
# outside bracket expressions, so escape special characters using bracket
# expressions.
#
# Solaris /bin/sh (tested 11.4) requires vertical bar (|) to be escaped.
#
# All accommodations should behave as expected under strict POSIX semantics.
if fnmatch "*[\\*?[|]*" "$2"; then
set -- "$1" "$(printf '%s\n' "$2" | sed -e 's/[*?[|]/[&]/g; s/[\]/[\\&]/g')"
fi
for item_P in "*[$list_FS]$2[$list_FS]*" "*[$list_FS]$2" "$2[$list_FS]*" "$2"; do
fnmatch "${item_P}" "$1" && return 0
done
return 1
}
# Adds a new line with the supplied arguments to $DESTN (or stdout)
write_line() {
if [ -n "$DESTN" ]; then
printf '%s\n' "$@" >> "$DESTN"
else
printf '%s\n' "$@"
fi
}
log_line() {
echo $@ >&2
}
# Find this file!
resolve_include() {
local srcdir=$1
local inc=$2
for root in $srcdir $ROOTS; do
if [ -f "$root/$inc" ]; then
# Try to reduce the file path into a canonical form (so that multiple)
# includes of the same file are successfully deduplicated, even if they
# are expressed differently.
local relpath="$(realpath --relative-to . "$root/$inc" 2>/dev/null)"
if [ "$relpath" != "" ]; then # not all realpaths support --relative-to
echo "$relpath"
return 0
fi
local relpath="$(realpath "$root/$inc" 2>/dev/null)"
if [ "$relpath" != "" ]; then # not all distros have realpath...
echo "$relpath"
return 0
fi
# Fallback on Python to reduce the path if the above fails.
local relpath=$(python -c "import os,sys; print os.path.relpath(sys.argv[1])" "$root/$inc" 2>/dev/null)
if [ "$relpath" != "" ]; then # not all distros have realpath...
echo "$relpath"
return 0
fi
# Worst case, fall back to just the root + relative include path. The
# problem with this is that it is possible to emit multiple different
# resolved paths to the same file, depending on exactly how its included.
# Since the main loop below keeps a list of the resolved paths it's
# already included, in order to avoid repeated includes, this failure to
# produce a canonical/reduced path can lead to multiple inclusions of the
# same file. But it seems like the resulting single file library still
# works (hurray include guards!), so I guess it's ok.
echo "$root/$inc"
return 0
fi
done
return 1
}
# Adds the contents of $1 with any of its includes inlined
add_file() {
local file=$1
if [ -n "$file" ]; then
log_line "Processing: $file"
# Get directory of the current so we can resolve relative includes
local srcdir="$(dirname "$file")"
# Read the file
local line=
while IFS= read -r line; do
if is_include_line "$line"; then
# We have an include directive so strip the (first) file
local inc=$(echo "$line" | grep -Eo '".*"' | sed -E 's/"([^"]+)"/\1/' | head -1)
local res_inc="$(resolve_include "$srcdir" "$inc")"
if list_has_item "$XINCS" "$inc"; then
# The file was excluded so error if the source attempts to use it
write_line "#error Using excluded file: $inc (re-amalgamate source to fix)"
log_line "Excluding: $inc"
else
if ! list_has_item "$FOUND" "$res_inc"; then
# The file was not previously encountered
FOUND="$FOUND $res_inc"
if list_has_item "$KINCS" "$inc"; then
# But the include was flagged to keep as included
write_line "/**** *NOT* inlining $inc ****/"
write_line "$line"
log_line "Not Inlining: $inc"
else
# The file was neither excluded nor seen before so inline it
write_line "/**** start inlining $inc ****/"
add_file "$res_inc"
write_line "/**** ended inlining $inc ****/"
fi
else
write_line "/**** skipping file: $inc ****/"
fi
fi
else
# Skip any 'pragma once' directives, otherwise write the source line
local write=$PONCE
if [ $write -eq 0 ]; then
if ! is_pragma_once_line "$line"; then
write=1
fi
fi
if [ $write -ne 0 ]; then
write_line "$line"
fi
fi
done < "$file"
else
write_line "#error Unable to find \"$1\""
log_line "Error: Unable to find: \"$1\""
fi
}
while getopts ":r:x:k:po:" opts; do
case $opts in
r)
ROOTS="$ROOTS $OPTARG"
;;
x)
XINCS="$XINCS $OPTARG"
;;
k)
KINCS="$KINCS $OPTARG"
;;
p)
PONCE=1
;;
o)
DESTN="$OPTARG"
;;
*)
usage
;;
esac
done
shift $((OPTIND-1))
if [ -n "$1" ]; then
if [ -f "$1" ]; then
if [ -n "$DESTN" ]; then
printf "" > "$DESTN"
fi
test_deps
log_line "Processing using the slower shell script; this might take a while"
add_file "$1"
else
echo "Input file not found: \"$1\""
exit 1
fi
else
usage
fi
exit 0

19
3rdparty/zstd/build/single_file_libs/create_single_file_decoder.sh vendored Executable file
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#!/bin/sh
# Where to find the sources
ZSTD_SRC_ROOT="../../lib"
# Amalgamate the sources
echo "Amalgamating files..."
# Using the faster Python script if we have 3.8 or higher
if python3 -c 'import sys; assert sys.version_info >= (3,8)' 2>/dev/null; then
./combine.py -r "$ZSTD_SRC_ROOT" -x legacy/zstd_legacy.h -o zstddeclib.c zstddeclib-in.c
else
./combine.sh -r "$ZSTD_SRC_ROOT" -x legacy/zstd_legacy.h -o zstddeclib.c zstddeclib-in.c
fi
# Did combining work?
if [ $? -ne 0 ]; then
echo "Combine script: FAILED"
exit 1
fi
echo "Combine script: PASSED"

19
3rdparty/zstd/build/single_file_libs/create_single_file_library.sh vendored Executable file
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@ -0,0 +1,19 @@
#!/bin/sh
# Where to find the sources
ZSTD_SRC_ROOT="../../lib"
# Amalgamate the sources
echo "Amalgamating files..."
# Using the faster Python script if we have 3.8 or higher
if python3 -c 'import sys; assert sys.version_info >= (3,8)' 2>/dev/null; then
./combine.py -r "$ZSTD_SRC_ROOT" -x legacy/zstd_legacy.h -o zstd.c zstd-in.c
else
./combine.sh -r "$ZSTD_SRC_ROOT" -x legacy/zstd_legacy.h -o zstd.c zstd-in.c
fi
# Did combining work?
if [ $? -ne 0 ]; then
echo "Combine script: FAILED"
exit 1
fi
echo "Combine script: PASSED"

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3rdparty/zstd/build/single_file_libs/examples/README.md vendored Normal file
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# Single File ZStandard Examples
The examples `#include` the generated `zstddeclib.c` directly but work equally as well when including `zstd.h` and compiling the amalgamated source separately.
`simple.c` is the most basic example of decompressing content and verifying the result.
`emscripten.c` is a bare-bones [Emscripten](https://github.com/emscripten-core/emscripten) compiled WebGL demo using Zstd to further compress a DXT1 texture (see the [original PNG image](testcard.png)). The 256x256 texture would normally be 32kB, but even when bundled with the Zstd decompressor the resulting WebAssembly weighs in at 41kB (`shell.html` is a support file to run the Wasm).
`roundtrip.c` is an example to use with the optional [amalgamated library](../create_single_file_library.sh) showing compression the decompression.
The example files in this directory are released under a [Creative Commons Zero license](https://creativecommons.org/publicdomain/zero/1.0/) (or Public Domain, whichever is applicable in your jurisdiction).

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3rdparty/zstd/build/single_file_libs/examples/emscripten.c vendored Normal file
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/**
* \file emscripten.c
* Emscripten example of using the single-file \c zstddeclib. Draws a rotating
* textured quad with data from the in-line Zstd compressed DXT1 texture (DXT1
* being hardware compression, further compressed with Zstd).
* \n
* Compile using:
* \code
* export CC_FLAGS="-Wall -Wextra -Werror -Os -g0 -flto --llvm-lto 3 -lGL -DNDEBUG=1"
* export EM_FLAGS="-s WASM=1 -s ENVIRONMENT=web --shell-file shell.html --closure 1"
* emcc $CC_FLAGS $EM_FLAGS -o out.html emscripten.c
* \endcode
*
* \author Carl Woffenden, Numfum GmbH (released under a CC0 license)
*/
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <emscripten/emscripten.h>
#include <emscripten/html5.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include "../zstddeclib.c"
//************************* Test Data (DXT texture) **************************/
/**
* Zstd compressed DXT1 256x256 texture source.
* \n
* See \c testcard.png for the original.
*/
static uint8_t const srcZstd[] = {
#include "testcard-zstd.inl"
};
/**
* Uncompressed size of \c #srcZstd.
*/
#define DXT1_256x256 32768
/**
* Destination for decoding \c #srcZstd.
*/
static uint8_t dstDxt1[DXT1_256x256] = {};
#ifndef ZSTD_VERSION_MAJOR
/**
* For the case where the decompression library hasn't been included we add a
* dummy function to fake the process and stop the buffers being optimised out.
*/
size_t ZSTD_decompress(void* dst, size_t dstLen, const void* src, size_t srcLen) {
return (memcmp(dst, src, (srcLen < dstLen) ? srcLen : dstLen)) ? dstLen : 0;
}
#endif
//*************************** Program and Shaders ***************************/
/**
* Program object ID.
*/
static GLuint progId = 0;
/**
* Vertex shader ID.
*/
static GLuint vertId = 0;
/**
* Fragment shader ID.
*/
static GLuint fragId = 0;
//********************************* Uniforms *********************************/
/**
* Quad rotation angle ID.
*/
static GLint uRotId = -1;
/**
* Draw colour ID.
*/
static GLint uTx0Id = -1;
//******************************* Shader Source ******************************/
/**
* Vertex shader to draw texture mapped polys with an applied rotation.
*/
static GLchar const vertShader2D[] =
#if GL_ES_VERSION_2_0
"#version 100\n"
"precision mediump float;\n"
#else
"#version 120\n"
#endif
"uniform float uRot;" // rotation
"attribute vec2 aPos;" // vertex position coords
"attribute vec2 aUV0;" // vertex texture UV0
"varying vec2 vUV0;" // (passed to fragment shader)
"void main() {"
" float cosA = cos(radians(uRot));"
" float sinA = sin(radians(uRot));"
" mat3 rot = mat3(cosA, -sinA, 0.0,"
" sinA, cosA, 0.0,"
" 0.0, 0.0, 1.0);"
" gl_Position = vec4(rot * vec3(aPos, 1.0), 1.0);"
" vUV0 = aUV0;"
"}";
/**
* Fragment shader for the above polys.
*/
static GLchar const fragShader2D[] =
#if GL_ES_VERSION_2_0
"#version 100\n"
"precision mediump float;\n"
#else
"#version 120\n"
#endif
"uniform sampler2D uTx0;"
"varying vec2 vUV0;" // (passed from fragment shader)
"void main() {"
" gl_FragColor = texture2D(uTx0, vUV0);"
"}";
/**
* Helper to compile a shader.
*
* \param type shader type
* \param text shader source
* \return the shader ID (or zero if compilation failed)
*/
static GLuint compileShader(GLenum const type, const GLchar* text) {
GLuint shader = glCreateShader(type);
if (shader) {
glShaderSource (shader, 1, &text, NULL);
glCompileShader(shader);
GLint compiled;
glGetShaderiv(shader, GL_COMPILE_STATUS, &compiled);
if (compiled) {
return shader;
} else {
GLint logLen;
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &logLen);
if (logLen > 1) {
GLchar* logStr = malloc(logLen);
glGetShaderInfoLog(shader, logLen, NULL, logStr);
#ifndef NDEBUG
printf("Shader compilation error: %s\n", logStr);
#endif
free(logStr);
}
glDeleteShader(shader);
}
}
return 0;
}
//********************************** Helpers *********************************/
/**
* Vertex position index.
*/
#define GL_VERT_POSXY_ID 0
/**
* Vertex UV0 index.
*/
#define GL_VERT_TXUV0_ID 1
/**
* \c GL vec2 storage type.
*/
struct vec2 {
float x;
float y;
};
/**
* Combined 2D vertex and 2D texture coordinates.
*/
struct posTex2d {
struct vec2 pos;
struct vec2 uv0;
};
//****************************************************************************/
/**
* Current quad rotation angle (in degrees, updated per frame).
*/
static float rotDeg = 0.0f;
/**
* Emscripten (single) GL context.
*/
static EMSCRIPTEN_WEBGL_CONTEXT_HANDLE glCtx = 0;
/**
* Emscripten resize handler.
*/
static EM_BOOL resize(int type, const EmscriptenUiEvent* e, void* data) {
double surfaceW;
double surfaceH;
if (emscripten_get_element_css_size ("#canvas", &surfaceW, &surfaceH) == EMSCRIPTEN_RESULT_SUCCESS) {
emscripten_set_canvas_element_size("#canvas", surfaceW, surfaceH);
if (glCtx) {
glViewport(0, 0, (int) surfaceW, (int) surfaceH);
}
}
(void) type;
(void) data;
(void) e;
return EM_FALSE;
}
/**
* Boilerplate to create a WebGL context.
*/
static EM_BOOL initContext() {
// Default attributes
EmscriptenWebGLContextAttributes attr;
emscripten_webgl_init_context_attributes(&attr);
if ((glCtx = emscripten_webgl_create_context("#canvas", &attr))) {
// Bind the context and fire a resize to get the initial size
emscripten_webgl_make_context_current(glCtx);
emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, NULL, EM_FALSE, resize);
resize(0, NULL, NULL);
return EM_TRUE;
}
return EM_FALSE;
}
/**
* Called once per frame (clears the screen and draws the rotating quad).
*/
static void tick() {
glClearColor(1.0f, 0.0f, 1.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
if (uRotId >= 0) {
glUniform1f(uRotId, rotDeg);
rotDeg += 0.1f;
if (rotDeg >= 360.0f) {
rotDeg -= 360.0f;
}
}
glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, 0);
glFlush();
}
/**
* Creates the GL context, shaders and quad data, decompresses the Zstd data
* and 'uploads' the resulting texture.
*
* As a (naive) comparison, removing Zstd and building with "-Os -g0 s WASM=1
* -lGL emscripten.c" results in a 15kB WebAssembly file; re-adding Zstd
* increases the Wasm by 26kB.
*/
int main() {
if (initContext()) {
// Compile shaders and set the initial GL state
if ((progId = glCreateProgram())) {
vertId = compileShader(GL_VERTEX_SHADER, vertShader2D);
fragId = compileShader(GL_FRAGMENT_SHADER, fragShader2D);
glBindAttribLocation(progId, GL_VERT_POSXY_ID, "aPos");
glBindAttribLocation(progId, GL_VERT_TXUV0_ID, "aUV0");
glAttachShader(progId, vertId);
glAttachShader(progId, fragId);
glLinkProgram (progId);
glUseProgram (progId);
uRotId = glGetUniformLocation(progId, "uRot");
uTx0Id = glGetUniformLocation(progId, "uTx0");
if (uTx0Id >= 0) {
glUniform1i(uTx0Id, 0);
}
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
glDisable(GL_DITHER);
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
}
GLuint vertsBuf = 0;
GLuint indexBuf = 0;
GLuint txName = 0;
// Create the textured quad (vert positions then UVs)
struct posTex2d verts2d[] = {
{{-0.85f, -0.85f}, {0.0f, 0.0f}}, // BL
{{ 0.85f, -0.85f}, {1.0f, 0.0f}}, // BR
{{-0.85f, 0.85f}, {0.0f, 1.0f}}, // TL
{{ 0.85f, 0.85f}, {1.0f, 1.0f}}, // TR
};
uint16_t index2d[] = {
0, 1, 2,
2, 1, 3,
};
glGenBuffers(1, &vertsBuf);
glBindBuffer(GL_ARRAY_BUFFER, vertsBuf);
glBufferData(GL_ARRAY_BUFFER,
sizeof(verts2d), verts2d, GL_STATIC_DRAW);
glVertexAttribPointer(GL_VERT_POSXY_ID, 2,
GL_FLOAT, GL_FALSE, sizeof(struct posTex2d), 0);
glVertexAttribPointer(GL_VERT_TXUV0_ID, 2,
GL_FLOAT, GL_FALSE, sizeof(struct posTex2d),
(void*) offsetof(struct posTex2d, uv0));
glGenBuffers(1, &indexBuf);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuf);
glBufferData(GL_ELEMENT_ARRAY_BUFFER,
sizeof(index2d), index2d, GL_STATIC_DRAW);
glEnableVertexAttribArray(GL_VERT_POSXY_ID);
glEnableVertexAttribArray(GL_VERT_TXUV0_ID);
// Decode the Zstd data and create the texture
if (ZSTD_decompress(dstDxt1, DXT1_256x256, srcZstd, sizeof srcZstd) == DXT1_256x256) {
glGenTextures(1, &txName);
glBindTexture(GL_TEXTURE_2D, txName);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glCompressedTexImage2D(GL_TEXTURE_2D, 0,
GL_COMPRESSED_RGB_S3TC_DXT1_EXT,
256, 256, 0, DXT1_256x256, dstDxt1);
} else {
printf("Failed to decode Zstd data\n");
}
emscripten_set_main_loop(tick, 0, EM_FALSE);
emscripten_exit_with_live_runtime();
}
return EXIT_FAILURE;
}

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3rdparty/zstd/build/single_file_libs/examples/roundtrip.c vendored Normal file
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/*
* \file roundtrip.c
* In this example we include \c zstd.h and compile separately the amalgamated
* \c zstd.c:
* \code
* cc -Wall -Wextra -Werror -I. -Os -g0 zstd.c examples/roundtrip.c
* \endcode
*
* \author Carl Woffenden, Numfum GmbH (released under a CC0 license)
*/
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "zstd.h"
//************************** Test Data (DXT texture) **************************/
/**
* Raw test data (borrowed from the Emscripten example).
* \n
* See \c testcard.png for the original.
*/
static uint8_t const rawData[] = {
#include "testcard-dxt1.inl"
};
#ifndef ZSTD_VERSION_MAJOR
/*
* For the case where the decompression library hasn't been included we add
* dummy functions to fake the process and stop the buffers being optimised out.
*/
size_t ZSTD_compressBound(size_t maxSrc) {
return maxSrc + 32;
}
int ZSTD_maxCLevel(void) {
return 20;
}
size_t ZSTD_compress(void* dst, size_t dstLen, const void* src, size_t srcLen, int level) {
return (memcmp(dst, src, (srcLen < dstLen) ? srcLen : dstLen)) ? level : dstLen;
}
unsigned ZSTD_isError(size_t code) {
return ((int) code) < 0;
}
size_t ZSTD_decompress(void* dst, size_t dstLen, const void* src, size_t srcLen) {
return (memcmp(dst, src, (srcLen < dstLen) ? srcLen : dstLen)) ? 0 : dstLen;
}
#endif
//*****************************************************************************/
/**
* Simple single-file test to compress \c rawData, decompress the result, then
* compare the decompressed version with the original.
*/
int main() {
size_t bounds = ZSTD_compressBound(sizeof rawData);
void* compBuf = malloc(bounds);
void* testBuf = malloc(sizeof rawData);
int compare = -1;
if (compBuf && testBuf) {
size_t compSize = ZSTD_compress(compBuf, bounds, rawData, sizeof rawData, ZSTD_maxCLevel());
if (!ZSTD_isError(compSize)) {
printf("Compression: PASSED (size: %lu, uncompressed: %lu)\n", (unsigned long) compSize, (unsigned long) (sizeof rawData));
size_t decSize = ZSTD_decompress(testBuf, sizeof rawData, compBuf, compSize);
if (!ZSTD_isError(decSize)) {
printf("Decompression: PASSED\n");
compare = memcmp(rawData, testBuf, decSize);
printf("Byte comparison: %s\n", (compare == 0) ? "PASSED" : "FAILED");
} else {
printf("Decompression: FAILED\n");
}
} else {
printf("Compression: FAILED\n");
}
free(compBuf);
free(testBuf);
}
return (compare == 0) ? EXIT_SUCCESS : EXIT_FAILURE;
}

31
3rdparty/zstd/build/single_file_libs/examples/shell.html vendored Normal file
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, maximum-scale=1.0, user-scalable=no, viewport-fit=cover" />
<meta name="apple-mobile-web-app-capable" content="yes" />
<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
<title>Emscripten Shell</title>
<style>
body {background:#333; font-family:"Verdana","Helvetica Neue","Helvetica","Arial",sans-serif; margin:1em 0;}
#canvas{position:absolute; top:0px; left:0px; border:none; margin:0; width: 100%; height: 100%; overflow: hidden; display: block;}
</style>
</head>
<body>
<canvas id="canvas" oncontextmenu="event.preventDefault()"></canvas>
<script>
function trace(msg) {
console.log(msg);
}
var Module = {
print: trace, printErr: trace, setStatus: trace, monitorRunDependencies: trace,
canvas: (function() {
return document.getElementById("canvas");
})(),
preRun: [], postRun: [],
};
</script>
{{{ SCRIPT }}}
</body>
</html>

75
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/**
* \file simple.c
* Simple standalone example of using the single-file \c zstddeclib.
*
* \note In this simple example we include the amalgamated source and compile
* just this single file, but we could equally (and more conventionally)
* include \c zstd.h and compile both this file and \c zstddeclib.c (the
* resulting binaries differ slightly in size but perform the same).
*
* \author Carl Woffenden, Numfum GmbH (released under a CC0 license)
*/
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../zstddeclib.c"
//************************* Test Data (DXT texture) **************************/
/**
* Raw 256x256 DXT1 data (used to compare the result).
* \n
* See \c testcard.png for the original.
*/
static uint8_t const rawDxt1[] = {
#include "testcard-dxt1.inl"
};
/**
* Zstd compressed version of \c #rawDxt1.
* \n
* See \c testcard.png for the original.
*/
static uint8_t const srcZstd[] = {
#include "testcard-zstd.inl"
};
/**
* Destination for decoding \c #srcZstd.
*/
static uint8_t dstDxt1[sizeof rawDxt1] = {};
#ifndef ZSTD_VERSION_MAJOR
/**
* For the case where the decompression library hasn't been included we add a
* dummy function to fake the process and stop the buffers being optimised out.
*/
size_t ZSTD_decompress(void* dst, size_t dstLen, const void* src, size_t srcLen) {
return (memcmp(dst, src, (srcLen < dstLen) ? srcLen : dstLen)) ? 0 : dstLen;
}
#endif
//****************************************************************************/
/**
* Simple single-file test to decompress \c #srcZstd into \c # dstDxt1 then
* compare the resulting bytes with \c #rawDxt1.
* \n
* As a (naive) comparison, removing Zstd and building with "-Os -g0 simple.c"
* results in a 44kB binary (macOS 10.14, Clang 10); re-adding Zstd increases
* the binary by 56kB (after calling \c strip).
*/
int main() {
size_t size = ZSTD_decompress(dstDxt1, sizeof dstDxt1, srcZstd, sizeof srcZstd);
int compare = memcmp(rawDxt1, dstDxt1, sizeof dstDxt1);
printf("Decompressed size: %s\n", (size == sizeof dstDxt1) ? "PASSED" : "FAILED");
printf("Byte comparison: %s\n", (compare == 0) ? "PASSED" : "FAILED");
if (size == sizeof dstDxt1 && compare == 0) {
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}

2731
3rdparty/zstd/build/single_file_libs/examples/testcard-dxt1.inl vendored Normal file
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File diff suppressed because it is too large Load Diff

261
3rdparty/zstd/build/single_file_libs/examples/testcard-zstd.inl vendored Normal file
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0x28, 0xb5, 0x2f, 0xfd, 0x60, 0x00, 0x7f, 0x6d, 0x61, 0x00, 0x0a, 0x66,
0xec, 0x17, 0x48, 0x60, 0x1c, 0x5a, 0xc9, 0x5d, 0x1a, 0x38, 0x07, 0xe8,
0xc5, 0x82, 0x99, 0x68, 0xe6, 0x95, 0x45, 0x58, 0x0d, 0x0c, 0xf3, 0x36,
0xc8, 0xd9, 0x0f, 0x46, 0x2d, 0x68, 0x11, 0xf8, 0x31, 0x10, 0xa1, 0x1a,
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0xb4, 0xd5, 0x00, 0x14, 0xb7, 0xf5, 0x00, 0xf4, 0x15, 0xa8, 0xd7, 0x4b,
0xb1, 0xbc, 0xa8, 0x36, 0x98, 0xf0, 0x8c, 0xe7, 0xf4, 0x7b, 0x35, 0xd8,
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0x07, 0x8c, 0x35, 0x1f, 0x7e, 0xcc, 0xbf, 0xf6, 0xe0, 0x06, 0x66, 0x7d,
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0x6f, 0x48, 0x20, 0x1d, 0xbb, 0x2a, 0x16, 0x8b, 0x54, 0x87, 0x92, 0x83,
0xe6, 0x8f, 0x55, 0x59, 0x06, 0x00, 0xe9, 0xc5, 0xce, 0x21, 0x63, 0x87,
0xaf, 0x86, 0xcc, 0xba, 0xd6, 0xe7, 0x00, 0xf6, 0x91, 0x92, 0x92, 0xea,
0xe8, 0x42, 0x06, 0x69, 0x13, 0xf5, 0x00, 0xd0, 0xb0, 0xa7, 0xcb, 0x4c,
0xb0, 0xd2, 0x2d, 0x28, 0x63, 0xf0, 0x6a, 0xc7, 0x80, 0x6a, 0x19, 0xb2,
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0x38, 0x2c, 0x18, 0x83, 0x1f, 0x8f, 0x9b, 0x8e, 0x4d, 0x26, 0xcd, 0x34,
0x0c, 0x66, 0x1d, 0x70, 0xb7, 0x01, 0xe6, 0x02, 0xa8, 0x51, 0x63, 0xcf,
0xbb, 0x03, 0xca, 0x85, 0xc6, 0x9c, 0xf6, 0xf1, 0x51, 0xe0, 0x60, 0x07,
0x40, 0x86, 0xf0, 0x1e, 0x6e, 0xef, 0x61, 0x10, 0xd9, 0x36, 0xcc, 0xfc,
0x58, 0xe2, 0x37, 0x0d, 0x58, 0xb7, 0xbe, 0xca, 0xc9, 0xd8, 0xcd, 0xaa,
0xd5, 0x5b, 0x77, 0x83, 0xcb, 0x0e, 0x30, 0xce, 0xc8, 0xb8, 0xcd, 0xbf,
0x1e, 0x63, 0x04, 0xad, 0xb7, 0xcd, 0x43, 0x62, 0x4c, 0xe0, 0x1a, 0xd4,
0x21, 0xe2, 0xdd, 0x33, 0xdf, 0xb1, 0xdd, 0xdc, 0x01, 0x22, 0x18, 0xce,
0xa1, 0xd8, 0xcb, 0x67, 0xd5, 0x38, 0x4a, 0xbc, 0xd5, 0x81, 0x3d, 0x03,
0x98, 0x35, 0x60, 0x41, 0x85, 0x0c, 0x1d, 0xe7, 0x76, 0xf8, 0x11, 0x52,
0x76, 0xf6, 0x06, 0x16, 0x02, 0x45, 0xc8, 0xd8, 0x2f, 0x5e, 0x57, 0xbc,
0x3b, 0x89, 0x97, 0x09, 0x3e, 0x03, 0x34, 0x1a, 0x9d, 0x37, 0x87, 0x48,
0x0a, 0xe0, 0xa7, 0x4f, 0x8c, 0x3a, 0xa2, 0xaf, 0xfd, 0x7b, 0x80, 0xcf,
0xe5, 0x18, 0x61, 0x68, 0xba, 0x61, 0x8b, 0x09, 0xaa, 0xa3, 0x0c, 0x47,
0x3c, 0x43, 0x03, 0xac, 0xa3, 0x2e, 0x5e, 0x72, 0x0c, 0x80, 0x19, 0x61,
0xe6, 0x6e, 0x0e, 0xd9, 0xe8, 0xe8, 0xaf, 0x11, 0x9b, 0x4a, 0x73, 0x7a,
0x61, 0x66, 0xf0, 0x54, 0x1d, 0x18, 0xc8, 0x23, 0x36, 0xbf, 0xb5, 0xf4,
0x86, 0x54, 0xed, 0xb5, 0x91, 0xee, 0xb8, 0xbc, 0xde, 0xc3, 0x87, 0x9b,
0x2f, 0x81, 0xf2, 0xee, 0xa3, 0xec, 0x02

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