fff4240bb4
Also temporarily disable multicheck build so that we get a full build even when there are style issues on Vulkan. Fixes #33356.
51 lines
2.5 KiB
C++
51 lines
2.5 KiB
C++
/*************************************************************************/
|
|
/* spin_lock.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
|
|
#ifndef SPIN_LOCK_H
|
|
#define SPIN_LOCK_H
|
|
|
|
#include "core/typedefs.h"
|
|
#include <atomic>
|
|
|
|
class SpinLock {
|
|
std::atomic_flag locked = ATOMIC_FLAG_INIT;
|
|
|
|
public:
|
|
_ALWAYS_INLINE_ void lock() {
|
|
while (locked.test_and_set(std::memory_order_acquire)) {
|
|
;
|
|
}
|
|
}
|
|
_ALWAYS_INLINE_ void unlock() {
|
|
locked.clear(std::memory_order_release);
|
|
}
|
|
};
|
|
#endif // SPIN_LOCK_H
|