forked from 0ad/0ad
wraitii
aaa95dc00b
- Remove redundant std::move() calls - default ctor/dtor in place of empty {} Patch by: jprahman Comments by; phosit Accepted by: vladislavbelov Differential Revision: https://code.wildfiregames.com/D4675 This was SVN commit r26916.
85 lines
2.0 KiB
C++
85 lines
2.0 KiB
C++
/* Copyright (C) 2022 Wildfire Games.
|
|
* This file is part of 0 A.D.
|
|
*
|
|
* 0 A.D. is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* 0 A.D. is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef INCLUDED_THREADING_TASKMANAGER
|
|
#define INCLUDED_THREADING_TASKMANAGER
|
|
|
|
#include "ps/Future.h"
|
|
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
namespace Threading
|
|
{
|
|
enum class TaskPriority
|
|
{
|
|
NORMAL,
|
|
LOW
|
|
};
|
|
|
|
/**
|
|
* The task manager creates all worker threads on initialisation,
|
|
* and manages the task queues.
|
|
* See implementation for additional comments.
|
|
*/
|
|
class TaskManager
|
|
{
|
|
friend class WorkerThread;
|
|
public:
|
|
TaskManager();
|
|
~TaskManager();
|
|
TaskManager(const TaskManager&) = delete;
|
|
TaskManager(TaskManager&&) = delete;
|
|
TaskManager& operator=(const TaskManager&) = delete;
|
|
TaskManager& operator=(TaskManager&&) = delete;
|
|
|
|
static void Initialise();
|
|
static TaskManager& Instance();
|
|
|
|
/**
|
|
* Clears all tasks from the queue. This blocks on started tasks.
|
|
*/
|
|
void ClearQueue();
|
|
|
|
/**
|
|
* @return the number of threaded workers.
|
|
*/
|
|
size_t GetNumberOfWorkers() const;
|
|
|
|
/**
|
|
* Push a task to be executed.
|
|
*/
|
|
template<typename T>
|
|
Future<std::invoke_result_t<T>> PushTask(T&& func, TaskPriority priority = TaskPriority::NORMAL)
|
|
{
|
|
Future<std::invoke_result_t<T>> ret;
|
|
DoPushTask(ret.Wrap(std::move(func)), priority);
|
|
return ret;
|
|
}
|
|
|
|
private:
|
|
TaskManager(size_t numberOfWorkers);
|
|
|
|
void DoPushTask(std::function<void()>&& task, TaskPriority priority);
|
|
|
|
class Impl;
|
|
std::unique_ptr<Impl> m;
|
|
};
|
|
} // namespace Threading
|
|
|
|
#endif // INCLUDED_THREADING_TASKMANAGER
|