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78 lines
2.6 KiB
78 lines
2.6 KiB
/****************************************************************************
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Copyright (c) 2019-2023 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 documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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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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#include <dispatch/dispatch.h>
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namespace cc {
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namespace gfx {
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class CCMTLSemaphore final {
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public:
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explicit CCMTLSemaphore(uint32_t initialValue) : _semaphoreCount(initialValue) {
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_semaphore = dispatch_semaphore_create(initialValue);
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}
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~CCMTLSemaphore() {
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if (_semaphore) {
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for (size_t i = 0; i < _semaphoreCount; ++i) {
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dispatch_semaphore_signal(_semaphore);
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}
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dispatch_release(_semaphore);
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_semaphore = nullptr;
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}
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};
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CCMTLSemaphore(const CCMTLSemaphore &) = delete;
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CCMTLSemaphore(CCMTLSemaphore &&) = delete;
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CCMTLSemaphore &operator=(const CCMTLSemaphore &) = delete;
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CCMTLSemaphore &operator=(CCMTLSemaphore &&) = delete;
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void signal() const {
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dispatch_semaphore_signal(_semaphore);
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}
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void wait() const {
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dispatch_semaphore_wait(_semaphore, DISPATCH_TIME_FOREVER);
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}
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void trySyncAll(uint64_t nanoSec) {
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for (uint32_t i = 0; i < _semaphoreCount; i++) {
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dispatch_semaphore_wait(_semaphore, nanoSec);
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}
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}
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void syncAll() {
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for (uint32_t i = 0; i < _semaphoreCount; i++) {
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dispatch_semaphore_wait(_semaphore, DISPATCH_TIME_FOREVER);
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}
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}
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protected:
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dispatch_semaphore_t _semaphore = nullptr;
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uint32_t _semaphoreCount = 0;
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};
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} // namespace gfx
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} // namespace cc
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