yuzu/src/common/spin_lock.h
Lioncash 6f006d051e General: Fix clang build
Allows building on clang to work again
2020-11-05 10:07:16 -05:00

35 lines
725 B
C++

// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <atomic>
namespace Common {
/**
* SpinLock class
* a lock similar to mutex that forces a thread to spin wait instead calling the
* supervisor. Should be used on short sequences of code.
*/
class SpinLock {
public:
SpinLock() = default;
SpinLock(const SpinLock&) = delete;
SpinLock& operator=(const SpinLock&) = delete;
SpinLock(SpinLock&&) = delete;
SpinLock& operator=(SpinLock&&) = delete;
void lock();
void unlock();
[[nodiscard]] bool try_lock();
private:
std::atomic_flag lck = ATOMIC_FLAG_INIT;
};
} // namespace Common