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placed cache back in new form, fixes listxml and similar (nw)

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This commit is contained in:
Miodrag Milanovic 2015-12-04 12:32:42 +01:00
parent 30bde502a6
commit 21d8194c7c
2 changed files with 11 additions and 0 deletions
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8
src/emu/drivenum.cpp
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@ -189,7 +189,15 @@ machine_config &driver_enumerator::config(int index, emu_options &options) const
// if we don't have it cached, add it
if (m_config[index] == nullptr)
{
// if our cache is full, release the head entry
if (m_config_cache.size() == CONFIG_CACHE_COUNT)
{
int first = m_config_cache.front();
m_config[first] = nullptr;
m_config_cache.erase(m_config_cache.begin());
}
m_config[index] = std::make_unique<machine_config>(*s_drivers_sorted[index], options);
m_config_cache.push_back(index);
}
return *m_config[index];
}

3
src/emu/drivenum.h
View File

@ -119,12 +119,15 @@ private:
// internal helpers
void release_current() const;
static const int CONFIG_CACHE_COUNT = 100;
// internal state
int m_current;
int m_filtered_count;
emu_options & m_options;
std::vector<UINT8> m_included;
mutable std::vector<std::unique_ptr<machine_config>> m_config;
mutable std::vector<int> m_config_cache;
};
#endif