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[godot] Nuclear option, diffs don't apply on Windows runner...
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/* | ||
* Copyright (c) 2024 the ThorVG project. All rights reserved. | ||
* 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. | ||
*/ | ||
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#ifndef _TVG_LOCK_H_ | ||
#define _TVG_LOCK_H_ | ||
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#ifdef THORVG_THREAD_SUPPORT | ||
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#include <mutex> | ||
#include "tvgTaskScheduler.h" | ||
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namespace tvg { | ||
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struct Key | ||
{ | ||
std::mutex mtx; | ||
}; | ||
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struct ScopedLock | ||
{ | ||
Key* key = nullptr; | ||
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ScopedLock(Key& k) | ||
{ | ||
if (TaskScheduler::threads() > 0) { | ||
k.mtx.lock(); | ||
key = &k; | ||
} | ||
} | ||
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~ScopedLock() | ||
{ | ||
if (TaskScheduler::threads() > 0) { | ||
key->mtx.unlock(); | ||
} | ||
} | ||
}; | ||
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} | ||
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#else //THORVG_THREAD_SUPPORT | ||
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namespace tvg { | ||
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struct Key {}; | ||
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struct ScopedLock | ||
{ | ||
ScopedLock(Key& key) {} | ||
}; | ||
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} | ||
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#endif //THORVG_THREAD_SUPPORT | ||
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#endif //_TVG_LOCK_H_ | ||
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/* | ||
* Copyright (c) 2020 - 2024 the ThorVG project. All rights reserved. | ||
* 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. | ||
*/ | ||
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#ifndef _TVG_TASK_SCHEDULER_H_ | ||
#define _TVG_TASK_SCHEDULER_H_ | ||
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#include <mutex> | ||
#include <condition_variable> | ||
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#include "tvgCommon.h" | ||
#include "tvgInlist.h" | ||
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namespace tvg { | ||
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#ifdef THORVG_THREAD_SUPPORT | ||
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struct Task | ||
{ | ||
private: | ||
mutex mtx; | ||
condition_variable cv; | ||
bool ready = true; | ||
bool pending = false; | ||
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public: | ||
INLIST_ITEM(Task); | ||
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virtual ~Task() = default; | ||
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void done() | ||
{ | ||
if (!pending) return; | ||
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unique_lock<mutex> lock(mtx); | ||
while (!ready) cv.wait(lock); | ||
pending = false; | ||
} | ||
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protected: | ||
virtual void run(unsigned tid) = 0; | ||
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private: | ||
void operator()(unsigned tid) | ||
{ | ||
run(tid); | ||
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lock_guard<mutex> lock(mtx); | ||
ready = true; | ||
cv.notify_one(); | ||
} | ||
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void prepare() | ||
{ | ||
ready = false; | ||
pending = true; | ||
} | ||
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friend struct TaskSchedulerImpl; | ||
}; | ||
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#else //THORVG_THREAD_SUPPORT | ||
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struct Task | ||
{ | ||
public: | ||
INLIST_ITEM(Task); | ||
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virtual ~Task() = default; | ||
void done() {} | ||
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protected: | ||
virtual void run(unsigned tid) = 0; | ||
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private: | ||
friend struct TaskSchedulerImpl; | ||
}; | ||
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#endif //THORVG_THREAD_SUPPORT | ||
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struct TaskScheduler | ||
{ | ||
static uint32_t threads(); | ||
static void init(uint32_t threads); | ||
static void term(); | ||
static void request(Task* task); | ||
static void async(bool on); | ||
}; | ||
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} //namespace | ||
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#endif //_TVG_TASK_SCHEDULER_H_ | ||
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