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VideoCommon: add additional locks around asset access and usage to ensure thread safety

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This commit is contained in:
iwubcode 2023-06-04 23:01:29 -05:00
commit 9d7ab47738
7 changed files with 92 additions and 56 deletions
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9
Source/Core/VideoCommon/Assets/CustomAsset.h
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@ -30,6 +30,7 @@ public:
// Queries the last time the asset was modified or standard epoch time
// if the asset hasn't been modified yet
// Note: not thread safe, expected to be called by the loader
CustomAssetLibrary::TimeType GetLastWriteTime() const;
// Returns the time that the data was last loaded
@ -48,8 +49,10 @@ protected:
private:
virtual CustomAssetLibrary::LoadInfo LoadImpl(const CustomAssetLibrary::AssetID& asset_id) = 0;
CustomAssetLibrary::AssetID m_asset_id;
mutable std::mutex m_info_lock;
std::size_t m_bytes_loaded = 0;
CustomAssetLibrary::TimeType m_last_loaded_time;
CustomAssetLibrary::TimeType m_last_loaded_time = {};
};
// An abstract class that is expected to
@ -70,7 +73,7 @@ public:
// they want to handle reloads
[[nodiscard]] std::shared_ptr<UnderlyingType> GetData() const
{
std::lock_guard lk(m_lock);
std::lock_guard lk(m_data_lock);
if (m_loaded)
return m_data;
return nullptr;
@ -78,7 +81,7 @@ public:
protected:
bool m_loaded = false;
mutable std::mutex m_lock;
mutable std::mutex m_data_lock;
std::shared_ptr<UnderlyingType> m_data;
};