69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
/*
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* Copyright (c) 2017 - 2018, Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR 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
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include "runtime/utilities/idlist.h"
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#include <atomic>
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#include <condition_variable>
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#include <mutex>
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#include <utility>
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namespace OCLRT {
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class DeferrableDeletion;
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class Thread;
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class DeferredDeleter {
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public:
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DeferredDeleter();
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virtual ~DeferredDeleter();
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DeferredDeleter(const DeferredDeleter &) = delete;
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DeferredDeleter &operator=(const DeferredDeleter &) = delete;
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MOCKABLE_VIRTUAL void deferDeletion(DeferrableDeletion *deletion);
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MOCKABLE_VIRTUAL void addClient();
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MOCKABLE_VIRTUAL void removeClient();
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MOCKABLE_VIRTUAL void drain(bool blocking);
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protected:
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void stop();
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void safeStop();
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void ensureThread();
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MOCKABLE_VIRTUAL void clearQueue();
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MOCKABLE_VIRTUAL bool areElementsReleased();
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MOCKABLE_VIRTUAL bool shouldStop();
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static void *run(void *);
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std::atomic<bool> doWorkInBackground;
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std::atomic<int> elementsToRelease;
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std::unique_ptr<Thread> worker;
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int32_t numClients = 0;
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IDList<DeferrableDeletion, true> queue;
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std::mutex queueMutex;
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std::mutex threadMutex;
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std::condition_variable condition;
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};
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} // namespace OCLRT
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