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// Copyright 2017 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "GameFileCache.h"
#include <QDataStream>
#include <QDir>
#include <QFileInfo>
#include "Common/FileUtil.h"
#include "Core/ConfigManager.h"
#include "DolphinQt2/Settings.h"
static const int CACHE_VERSION = 1; // Last changed in PR #5927
static const int DATASTREAM_VERSION = QDataStream::Qt_5_0;
GameFileCache::GameFileCache()
: m_path(QString::fromStdString(File::GetUserPath(D_CACHE_IDX) + "qt_gamefile.cache"))
{
}
bool GameFileCache::IsCached(const QString& path)
{
std::lock_guard<std::mutex> guard(m_mutex);
return m_gamefiles.contains(path);
}
GameFile GameFileCache::GetFile(const QString& path)
{
std::lock_guard<std::mutex> guard(m_mutex);
return m_gamefiles[path];
}
void GameFileCache::Load()
{
std::lock_guard<std::mutex> guard(m_mutex);
QFile file(m_path);
if (!file.open(QIODevice::ReadOnly))
return;
QDataStream stream(&file);
stream.setVersion(DATASTREAM_VERSION);
qint32 cache_version;
stream >> cache_version;
// If the cache file is using an older version, ignore it and create it from scratch
if (cache_version != CACHE_VERSION)
return;
stream >> m_gamefiles;
}
void GameFileCache::Save()
{
std::lock_guard<std::mutex> guard(m_mutex);
QFile file(m_path);
if (!file.open(QIODevice::WriteOnly))
return;
QDataStream stream(&file);
stream.setVersion(DATASTREAM_VERSION);
stream << static_cast<qint32>(CACHE_VERSION);
stream << m_gamefiles;
}
void GameFileCache::Update(const GameFile& gamefile)
{
std::lock_guard<std::mutex> guard(m_mutex);
m_gamefiles[gamefile.GetFilePath()] = gamefile;
}
QList<QString> GameFileCache::GetCached()
{
std::lock_guard<std::mutex> guard(m_mutex);
return m_gamefiles.keys();
}
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