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61 lines
2.0 KiB
61 lines
2.0 KiB
/****************************************************************************
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Copyright (c) 2020-2023 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 <algorithm>
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#include <thread>
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#include "base/memory/Memory.h"
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#include "tbb/global_control.h"
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namespace cc {
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class TBBJobGraph;
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class TBBJobSystem final {
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public:
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static TBBJobSystem *getInstance() {
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if (!_instance) {
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_instance = ccnew TBBJobSystem;
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}
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return _instance;
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}
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static void destroyInstance() {
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CC_SAFE_DELETE(_instance);
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}
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TBBJobSystem() noexcept : TBBJobSystem(std::max(2u, std::thread::hardware_concurrency() - 2u)) {}
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explicit TBBJobSystem(uint32_t threadCount) noexcept;
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inline uint32_t threadCount() { return _threadCount; }
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private:
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static TBBJobSystem *_instance;
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tbb::global_control _control;
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uint32_t _threadCount{0u};
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};
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} // namespace cc
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