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c74744fae4
[ui] added median duration into tree stats; [ui] added max rows count for "Call-stack" tree mode;
120 lines
4.7 KiB
C++
120 lines
4.7 KiB
C++
/************************************************************************
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* file name : thread_pool.h
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* ----------------- :
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* creation time : 2018/01/28
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* author : Victor Zarubkin
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* email : v.s.zarubkin@gmail.com
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* ----------------- :
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* description : The file contains declaration of ThreadPool.
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* ----------------- :
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* license : Lightweight profiler library for c++
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* : Copyright(C) 2016-2019 Sergey Yagovtsev, Victor Zarubkin
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* :
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* : Licensed under either of
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* : * MIT license (LICENSE.MIT or http://opensource.org/licenses/MIT)
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* : * Apache License, Version 2.0, (LICENSE.APACHE or http://www.apache.org/licenses/LICENSE-2.0)
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* : at your option.
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* :
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* : The MIT License
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* :
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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
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* : to 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
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* : 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 in all
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* : 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 OR IMPLIED,
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* : INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* : PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* : LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* : TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* : USE OR OTHER DEALINGS IN THE SOFTWARE.
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* :
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* : The Apache License, Version 2.0 (the "License")
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* :
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* : You may not use this file except in compliance with the License.
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* : You may obtain a copy of the License at
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* :
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* : http://www.apache.org/licenses/LICENSE-2.0
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* :
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* : Unless required by applicable law or agreed to in writing, software
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* : distributed under the License is distributed on an "AS IS" BASIS,
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* : WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* : See the License for the specific language governing permissions and
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* : limitations under the License.
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************************************************************************/
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#ifndef EASY_PROFILER_THREAD_POOL_H
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#define EASY_PROFILER_THREAD_POOL_H
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#include "thread_pool_task.h"
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#include <vector>
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#include <deque>
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#include <condition_variable>
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#include <thread>
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#include <functional>
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#if !defined(_WIN32) && !defined(__APPLE__)
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// FIXME: Workaround for Qt on Linux
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//
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// There is a memory leak in Qt when creating Qt objects in several separate threads
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// and removing them in one another (different) thread.
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//
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// But there is no memory leak when there is only one separate thread (apart from main thread)
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// for creating Qt objects and one separate (different!) thread for removing them.
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//
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#define EASY_THREADPOOL_SEPARATE_QT_THREAD
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#endif
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class ThreadPool EASY_FINAL
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{
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friend ThreadPoolTask;
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template <class T>
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struct Jobs
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{
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std::deque<T> queue;
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std::mutex mutex;
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std::condition_variable cv;
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};
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using TaskJobs = Jobs<std::reference_wrapper<ThreadPoolTask> >;
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using BackgroundJobs = Jobs<std::function<void()> >;
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TaskJobs m_tasks;
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#ifdef EASY_THREADPOOL_SEPARATE_QT_THREAD
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TaskJobs m_qtasks;
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#endif
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BackgroundJobs m_backgroundJobs;
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std::vector<std::thread> m_threads;
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std::atomic_bool m_interrupt;
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ThreadPool();
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public:
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~ThreadPool();
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static ThreadPool& instance();
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void backgroundJob(std::function<void()>&& func);
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private:
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void enqueue(ThreadPoolTask& task);
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void dequeue(ThreadPoolTask& task);
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void enqueue(ThreadPoolTask& task, TaskJobs& tasks);
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void dequeue(ThreadPoolTask& task, TaskJobs& tasks);
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void tasksWorker(TaskJobs& tasks);
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void jobsWorker();
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}; // end of class ThreadPool.
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#endif //EASY_PROFILER_THREAD_POOL_H
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