mirror of
https://github.com/cocos/cocos-engine.git
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83 lines
2.8 KiB
C++
83 lines
2.8 KiB
C++
/****************************************************************************
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Copyright (c) 2021-2022 Xiamen Yaji Software Co., Ltd.
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http://www.cocos.com
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated engine source code (the "Software"), a limited,
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worldwide, royalty-free, non-assignable, revocable and non-exclusive license
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to use Cocos Creator solely to develop games on your target platforms. You shall
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not use Cocos Creator software for developing other software or tools that's
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used for developing games. You are not granted to publish, distribute,
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sublicense, and/or sell copies of Cocos Creator.
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The software or tools in this License Agreement are licensed, not sold.
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Xiamen Yaji Software Co., Ltd. reserves all rights not expressly granted to you.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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// clang-format off
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#include "base/Macros.h"
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// clang-format on
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#include <uv.h>
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#include <functional>
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namespace cc {
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class ReadWriteLock final {
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public:
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ReadWriteLock() {
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uv_rwlock_init(&_lock);
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};
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~ReadWriteLock() {
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uv_rwlock_destroy(&_lock);
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}
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template <typename Function, typename... Args>
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auto lockRead(Function &&func, Args &&...args) noexcept -> decltype(func(std::forward<Args>(args)...));
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template <typename Function, typename... Args>
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auto lockWrite(Function &&func, Args &&...args) noexcept -> decltype(func(std::forward<Args>(args)...));
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private:
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uv_rwlock_t _lock;
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struct Defer final {
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explicit Defer(std::function<void()> &&f) : fn(f) {}
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~Defer() {
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fn();
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}
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std::function<void()> fn;
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};
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};
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template <typename Function, typename... Args>
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auto ReadWriteLock::lockRead(Function &&func, Args &&...args) noexcept -> decltype(func(std::forward<Args>(args)...)) {
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uv_rwlock_rdlock(&_lock);
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auto defer = Defer([&]() {
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uv_rwlock_rdunlock(&_lock);
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});
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return func(std::forward<Args>(args)...);
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}
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template <typename Function, typename... Args>
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auto ReadWriteLock::lockWrite(Function &&func, Args &&...args) noexcept -> decltype(func(std::forward<Args>(args)...)) {
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uv_rwlock_wrlock(&_lock);
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auto defer = Defer([&]() {
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uv_rwlock_wrunlock(&_lock);
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});
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return func(std::forward<Args>(args)...);
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}
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} // namespace cc
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