citra/src/common/detached_tasks.cpp

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// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <thread>
#include "common/assert.h"
#include "common/detached_tasks.h"
namespace Common {
DetachedTasks* DetachedTasks::instance = nullptr;
DetachedTasks::DetachedTasks() {
ASSERT(instance == nullptr);
instance = this;
}
void DetachedTasks::WaitForAllTasks() {
std::unique_lock<std::mutex> lock(mutex);
cv.wait(lock, [this]() { return count == 0; });
}
DetachedTasks::~DetachedTasks() {
std::unique_lock<std::mutex> lock(mutex);
ASSERT(count == 0);
instance = nullptr;
}
void DetachedTasks::AddTask(std::function<void()> task) {
std::unique_lock<std::mutex> lock(instance->mutex);
++instance->count;
std::thread([task{std::move(task)}]() {
task();
std::unique_lock<std::mutex> lock(instance->mutex);
--instance->count;
std::notify_all_at_thread_exit(instance->cv, std::move(lock));
})
.detach();
}
} // namespace Common