forked from huawei/mindspore2022
66 lines
1.8 KiB
C++
66 lines
1.8 KiB
C++
/**
|
|
* Copyright 2020 Huawei Technologies Co., Ltd
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef MINDSPORE_CCSRC_COMMON_THREAD_POOL_H_
|
|
#define MINDSPORE_CCSRC_COMMON_THREAD_POOL_H_
|
|
|
|
#include <mutex>
|
|
#include <condition_variable>
|
|
#include <thread>
|
|
#include <vector>
|
|
#include <queue>
|
|
#include <string>
|
|
#include <atomic>
|
|
#include <memory>
|
|
#include <utility>
|
|
#include <functional>
|
|
#include <iostream>
|
|
#include "utils/log_adapter.h"
|
|
|
|
namespace mindspore {
|
|
namespace common {
|
|
enum Status { FAIL = -1, SUCCESS = 0 };
|
|
using Task = std::function<int()>;
|
|
|
|
class ThreadPool {
|
|
public:
|
|
~ThreadPool();
|
|
ThreadPool(const ThreadPool &) = delete;
|
|
ThreadPool &operator=(const ThreadPool &) = delete;
|
|
static ThreadPool &GetInstance();
|
|
bool SyncRun(const std::vector<Task> &tasks);
|
|
size_t GetSyncRunThreadNum() { return max_thread_num_; }
|
|
void ClearThreadPool();
|
|
|
|
private:
|
|
ThreadPool();
|
|
void SyncRunLoop();
|
|
|
|
size_t max_thread_num_{1};
|
|
std::mutex pool_mtx_;
|
|
std::atomic_bool exit_run_ = {false};
|
|
std::queue<Task> task_queue_;
|
|
std::mutex task_mutex_;
|
|
std::condition_variable task_cond_var_;
|
|
size_t task_finished_count_{0};
|
|
std::condition_variable finished_cond_var_;
|
|
std::vector<std::thread> sync_run_threads_{};
|
|
};
|
|
} // namespace common
|
|
} // namespace mindspore
|
|
|
|
#endif // MINDSPORE_CCSRC_COMMON_THREAD_POOL_H_
|