forked from 0ad/0ad
bb
157c6af18e
Avoid cases of filenames Update years in terms and other legal(ish) documents Don't update years in license headers, since change is not meaningful Will add linter rule in seperate commit Happy recompiling everyone! Original Patch By: Nescio Comment By: Gallaecio Differential Revision: D2620 This was SVN commit r27786.
85 lines
2.0 KiB
C++
85 lines
2.0 KiB
C++
/* Copyright (C) 2022 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. 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 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. 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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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_THREADING_TASKMANAGER
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#define INCLUDED_THREADING_TASKMANAGER
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#include "ps/Future.h"
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#include <memory>
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#include <vector>
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namespace Threading
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{
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enum class TaskPriority
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{
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NORMAL,
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LOW
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};
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/**
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* The task manager creates all worker threads on initialisation,
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* and manages the task queues.
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* See implementation for additional comments.
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*/
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class TaskManager
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{
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friend class WorkerThread;
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public:
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TaskManager();
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~TaskManager();
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TaskManager(const TaskManager&) = delete;
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TaskManager(TaskManager&&) = delete;
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TaskManager& operator=(const TaskManager&) = delete;
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TaskManager& operator=(TaskManager&&) = delete;
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static void Initialise();
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static TaskManager& Instance();
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/**
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* Clears all tasks from the queue. This blocks on started tasks.
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*/
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void ClearQueue();
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/**
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* @return the number of threaded workers.
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*/
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size_t GetNumberOfWorkers() const;
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/**
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* Push a task to be executed.
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*/
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template<typename T>
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Future<std::invoke_result_t<T>> PushTask(T&& func, TaskPriority priority = TaskPriority::NORMAL)
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{
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Future<std::invoke_result_t<T>> ret;
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DoPushTask(ret.Wrap(std::move(func)), priority);
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return ret;
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}
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private:
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TaskManager(size_t numberOfWorkers);
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void DoPushTask(std::function<void()>&& task, TaskPriority priority);
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class Impl;
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const std::unique_ptr<Impl> m;
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};
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} // namespace Threading
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#endif // INCLUDED_THREADING_TASKMANAGER
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