mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-12-02 18:46:52 +00:00
108 lines
2.7 KiB
C++
108 lines
2.7 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
|
|
|
|
// 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, version 2.0 or later versions.
|
|
|
|
// 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 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official git repository and contact information can be found at
|
|
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
|
|
|
|
#include <map>
|
|
#include <set>
|
|
#include "base/mutex.h"
|
|
#include "Core/ThreadEventQueue.h"
|
|
|
|
class NoBase {
|
|
};
|
|
|
|
enum AsyncIOEventType {
|
|
IO_EVENT_INVALID,
|
|
IO_EVENT_SYNC,
|
|
IO_EVENT_FINISH,
|
|
IO_EVENT_READ,
|
|
IO_EVENT_WRITE,
|
|
};
|
|
|
|
struct AsyncIOEvent {
|
|
AsyncIOEvent(AsyncIOEventType t) : type(t) {}
|
|
AsyncIOEventType type;
|
|
u32 handle;
|
|
u8 *buf;
|
|
size_t bytes;
|
|
u32 invalidateAddr;
|
|
|
|
operator AsyncIOEventType() const {
|
|
return type;
|
|
}
|
|
};
|
|
|
|
struct AsyncIOResult {
|
|
AsyncIOResult() : result(0), finishTicks(0), invalidateAddr(0) {
|
|
}
|
|
|
|
explicit AsyncIOResult(s64 r) : result(r), finishTicks(0), invalidateAddr(0) {
|
|
}
|
|
|
|
AsyncIOResult(s64 r, int usec, u32 addr = 0) : result(r), invalidateAddr(addr) {
|
|
finishTicks = CoreTiming::GetTicks() + usToCycles(usec);
|
|
}
|
|
|
|
void DoState(PointerWrap &p) {
|
|
auto s = p.Section("AsyncIOResult", 1, 2);
|
|
if (!s)
|
|
return;
|
|
|
|
p.Do(result);
|
|
p.Do(finishTicks);
|
|
if (s >= 2) {
|
|
p.Do(invalidateAddr);
|
|
} else {
|
|
invalidateAddr = 0;
|
|
}
|
|
}
|
|
|
|
s64 result;
|
|
u64 finishTicks;
|
|
u32 invalidateAddr;
|
|
};
|
|
|
|
typedef ThreadEventQueue<NoBase, AsyncIOEvent, AsyncIOEventType, IO_EVENT_INVALID, IO_EVENT_SYNC, IO_EVENT_FINISH> IOThreadEventQueue;
|
|
class AsyncIOManager : public IOThreadEventQueue {
|
|
public:
|
|
void DoState(PointerWrap &p);
|
|
|
|
bool HasOperation(u32 handle);
|
|
void ScheduleOperation(AsyncIOEvent ev);
|
|
void Shutdown();
|
|
|
|
bool HasResult(u32 handle);
|
|
bool PopResult(u32 handle, AsyncIOResult &result);
|
|
bool ReadResult(u32 handle, AsyncIOResult &result);
|
|
bool WaitResult(u32 handle, AsyncIOResult &result);
|
|
u64 ResultFinishTicks(u32 handle);
|
|
|
|
protected:
|
|
void ProcessEvent(AsyncIOEvent ref) override;
|
|
bool ShouldExitEventLoop() override {
|
|
return coreState == CORE_ERROR || coreState == CORE_POWERDOWN;
|
|
}
|
|
|
|
private:
|
|
void Read(u32 handle, u8 *buf, size_t bytes, u32 invalidateAddr);
|
|
void Write(u32 handle, u8 *buf, size_t bytes);
|
|
|
|
void EventResult(u32 handle, AsyncIOResult result);
|
|
|
|
recursive_mutex resultsLock_;
|
|
condition_variable resultsWait_;
|
|
std::set<u32> resultsPending_;
|
|
std::map<u32, AsyncIOResult> results_;
|
|
}; |