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// Copyright 2015 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <condition_variable>
#include <functional>
#include <future>
#include <mutex>
#include <queue>
#include "Common/Flag.h"
#include "Common/Functional.h"
struct EfbPokeData;
class PointerWrap;
class AsyncRequests
{
public:
AsyncRequests();
void PullEvents()
{
if (!m_empty.IsSet())
PullEventsInternal();
}
void WaitForEmptyQueue();
void SetEnable(bool enable);
void SetPassthrough(bool enable);
template <typename F>
void PushEvent(F&& callback)
{
std::unique_lock<std::mutex> lock(m_mutex);
if (m_passthrough)
{
std::invoke(callback);
return;
}
QueueEvent(Event{std::forward<F>(callback)});
}
template <typename F>
auto PushBlockingEvent(F&& callback) -> std::invoke_result_t<F>
{
std::unique_lock<std::mutex> lock(m_mutex);
if (m_passthrough)
return std::invoke(callback);
std::packaged_task task{std::forward<F>(callback)};
QueueEvent(Event{[&] { task(); }});
lock.unlock();
return task.get_future().get();
}
static AsyncRequests* GetInstance() { return &s_singleton; }
private:
using Event = Common::MoveOnlyFunction<void()>;
void QueueEvent(Event&& event);
void PullEventsInternal();
static AsyncRequests s_singleton;
Common::Flag m_empty;
std::queue<Event> m_queue;
std::mutex m_mutex;
std::condition_variable m_cond;
bool m_enable = false;
bool m_passthrough = true;
};
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