99ceb03a1c
This formats all copyright comments according to SPDX formatting guidelines. Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
33 lines
706 B
C++
33 lines
706 B
C++
// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#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
|