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/*
Copyright 2016-2023 melonDS team
This file is part of melonDS.
melonDS 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 3 of the License, or (at your option)
any later version.
melonDS 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 melonDS. If not, see http://www.gnu.org/licenses/.
*/
#ifndef SAVEMANAGER_H
#define SAVEMANAGER_H
#include <string>
#include <unistd.h>
#include <time.h>
#include <atomic>
#include <memory>
#include <QThread>
#include <QMutex>
#include "types.h"
class SaveManager : public QThread
{
Q_OBJECT
void run() override;
public:
SaveManager(const std::string& path);
~SaveManager();
std::string GetPath();
void SetPath(const std::string& path, bool reload);
void RequestFlush(const melonDS::u8* savedata, melonDS::u32 savelen, melonDS::u32 writeoffset, melonDS::u32 writelen);
void CheckFlush();
bool NeedsFlush();
void FlushSecondaryBuffer(melonDS::u8* dst = nullptr, melonDS::u32 dstLength = 0);
private:
std::string Path;
std::atomic_bool Running;
std::unique_ptr<melonDS::u8[]> Buffer;
melonDS::u32 Length;
bool FlushRequested;
QMutex* SecondaryBufferLock;
std::unique_ptr<melonDS::u8[]> SecondaryBuffer;
melonDS::u32 SecondaryBufferLength;
time_t TimeAtLastFlushRequest;
// We keep versions in case the user closes the application before
// a flush cycle is finished.
melonDS::u32 PreviousFlushVersion;
melonDS::u32 FlushVersion;
};
#endif // SAVEMANAGER_H
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