compute-runtime/runtime/os_interface/linux/drm_gem_close_worker.h

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/*
* Copyright (c) 2017, Intel Corporation
*
* 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.
*/
#pragma once
#include <atomic>
#include <condition_variable>
#include <mutex>
#include <thread>
#include <map>
#include <set>
#include <queue>
#include <cstdint>
namespace OCLRT {
class DrmMemoryManager;
class DrmAllocation;
enum gemCloseWorkerMode {
gemCloseWorkerConsumingCommandBuffers,
gemCloseWorkerInactive,
gemCloseWorkerConsumingResources
};
class DrmGemCloseWorker {
public:
DrmGemCloseWorker(DrmMemoryManager &memoryManager);
~DrmGemCloseWorker();
DrmGemCloseWorker(const DrmGemCloseWorker &) = delete;
DrmGemCloseWorker &operator=(const DrmGemCloseWorker &) = delete;
void push(DrmAllocation *allocation);
void close(bool blocking);
bool isEmpty();
private:
void close(DrmAllocation *workItem);
void closeThread();
void worker();
bool active;
std::thread *thread;
std::queue<DrmAllocation *> queue;
std::atomic<uint32_t> workCount;
DrmMemoryManager &memoryManager;
std::mutex closeWorkerMutex;
std::condition_variable condition;
std::atomic<bool> workerDone;
};
}