67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2021 Olive Team
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef THREADPOOL_H
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#define THREADPOOL_H
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#include "threading/threadticket.h"
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#include <vector>
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#include <thread>
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#include <deque>
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#include <mutex>
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#include <condition_variable>
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namespace olive {
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enum class RenderTicketPriority { kHigh = 0, kNormal };
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class ThreadPool : public QObject
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{
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Q_OBJECT
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public:
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using TaskType = RenderTicketPtr;
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ThreadPool(unsigned threads, QObject *parent);
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ThreadPool(const ThreadPool &) = delete;
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ThreadPool(ThreadPool &&) = delete;
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ThreadPool & operator=(const ThreadPool&) = delete;
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ThreadPool & operator=(ThreadPool &&) = delete;
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virtual void RunTicket(RenderTicketPtr ticket) const = 0;
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void AddTicket(RenderTicketPtr ticket, RenderTicketPriority priority = RenderTicketPriority::kNormal);
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bool RemoveTicket(RenderTicketPtr ticket);
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virtual ~ThreadPool() override;
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private:
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void thread_exec();
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std::vector<std::thread> worker_threads_;
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std::deque<TaskType> tasks_;
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std::mutex task_mutex_;
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std::condition_variable cond_;
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std::atomic_bool end_threadp_{false};
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};
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} // namespace olive
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#endif // THREADPOOL_H
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