mirror of https://github.com/pvnis/srsRAN_4G.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
141 lines
3.9 KiB
C++
141 lines
3.9 KiB
C++
/**
|
|
* Copyright 2013-2021 Software Radio Systems Limited
|
|
*
|
|
* This file is part of srsLTE.
|
|
*
|
|
* srsLTE is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Affero General Public License as
|
|
* published by the Free Software Foundation, either version 3 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* srsLTE 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 Affero General Public License for more details.
|
|
*
|
|
* A copy of the GNU Affero General Public License can be found in
|
|
* the LICENSE file in the top-level directory of this distribution
|
|
* and at http://www.gnu.org/licenses/.
|
|
*
|
|
*/
|
|
|
|
/******************************************************************************
|
|
* File: thread_pool.h
|
|
* Description: Implements a pool of threads. Pending tasks to execute are
|
|
* identified by a pointer.
|
|
* Reference:
|
|
*****************************************************************************/
|
|
|
|
#ifndef SRSLTE_THREAD_POOL_H
|
|
#define SRSLTE_THREAD_POOL_H
|
|
|
|
#include <condition_variable>
|
|
#include <functional>
|
|
#include <memory>
|
|
#include <mutex>
|
|
#include <queue>
|
|
#include <stack>
|
|
#include <stdint.h>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "srslte/common/threads.h"
|
|
|
|
namespace srslte {
|
|
|
|
class thread_pool
|
|
{
|
|
public:
|
|
class worker : public thread
|
|
{
|
|
public:
|
|
worker();
|
|
~worker() = default;
|
|
void setup(uint32_t id, thread_pool* parent, uint32_t prio = 0, uint32_t mask = 255);
|
|
uint32_t get_id();
|
|
void release();
|
|
|
|
protected:
|
|
virtual void work_imp() = 0;
|
|
|
|
private:
|
|
uint32_t my_id = 0;
|
|
thread_pool* my_parent = nullptr;
|
|
|
|
void run_thread();
|
|
void wait_to_start();
|
|
void finished();
|
|
};
|
|
|
|
thread_pool(uint32_t nof_workers);
|
|
void init_worker(uint32_t id, worker*, uint32_t prio = 0, uint32_t mask = 255);
|
|
void stop();
|
|
worker* wait_worker_id(uint32_t id);
|
|
worker* wait_worker(uint32_t tti);
|
|
worker* wait_worker_nb(uint32_t tti);
|
|
void start_worker(worker*);
|
|
void start_worker(uint32_t id);
|
|
worker* get_worker(uint32_t id);
|
|
uint32_t get_nof_workers();
|
|
|
|
private:
|
|
bool find_finished_worker(uint32_t tti, uint32_t* id);
|
|
|
|
typedef enum { STOP, IDLE, START_WORK, WORKER_READY, WORKING } worker_status;
|
|
|
|
std::vector<worker*> workers = {};
|
|
uint32_t nof_workers = 0;
|
|
uint32_t max_workers = 0;
|
|
bool running = false;
|
|
std::condition_variable cvar_queue = {};
|
|
std::mutex mutex_queue = {};
|
|
std::vector<worker_status> status = {};
|
|
std::vector<std::condition_variable> cvar_worker = {};
|
|
};
|
|
|
|
class task_thread_pool
|
|
{
|
|
using task_t = std::function<void(uint32_t worker_id)>;
|
|
|
|
public:
|
|
explicit task_thread_pool(uint32_t nof_workers);
|
|
~task_thread_pool();
|
|
void start(int32_t prio = -1, uint32_t mask = 255);
|
|
void stop();
|
|
|
|
void push_task(const task_t& task);
|
|
void push_task(task_t&& task);
|
|
uint32_t nof_pending_tasks();
|
|
size_t nof_workers() const { return workers.size(); }
|
|
|
|
private:
|
|
class worker_t : public thread
|
|
{
|
|
public:
|
|
explicit worker_t(task_thread_pool* parent_, uint32_t id);
|
|
void stop();
|
|
void setup(int32_t prio, uint32_t mask);
|
|
bool is_running() const { return running; }
|
|
uint32_t id() const { return id_; }
|
|
|
|
void run_thread() override;
|
|
|
|
private:
|
|
bool wait_task(task_t* task);
|
|
|
|
task_thread_pool* parent = nullptr;
|
|
uint32_t id_ = 0;
|
|
bool running = false;
|
|
};
|
|
|
|
std::queue<task_t> pending_tasks;
|
|
std::vector<worker_t> workers;
|
|
std::mutex queue_mutex;
|
|
std::condition_variable cv_empty;
|
|
bool running;
|
|
};
|
|
|
|
} // namespace srslte
|
|
|
|
#endif // SRSLTE_THREAD_POOL_H
|