mirror of
https://github.com/Xaymar/obs-StreamFX
synced 2024-12-29 11:01:23 +00:00
139 lines
3.3 KiB
C++
139 lines
3.3 KiB
C++
// AUTOGENERATED COPYRIGHT HEADER START
|
|
// Copyright (C) 2020-2023 Michael Fabian 'Xaymar' Dirks <info@xaymar.com>
|
|
// AUTOGENERATED COPYRIGHT HEADER END
|
|
|
|
#pragma once
|
|
#include "warning-disable.hpp"
|
|
#include <atomic>
|
|
#include <chrono>
|
|
#include <cinttypes>
|
|
#include <condition_variable>
|
|
#include <cstddef>
|
|
#include <functional>
|
|
#include <list>
|
|
#include <memory>
|
|
#include <mutex>
|
|
#include <new>
|
|
#include <stdexcept>
|
|
#include <thread>
|
|
#include "warning-enable.hpp"
|
|
|
|
namespace streamfx::util::threadpool {
|
|
typedef std::shared_ptr<void> task_data_t;
|
|
typedef std::function<void(task_data_t)> task_callback_t;
|
|
|
|
struct worker_info {
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::atomic<bool> stop;
|
|
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::mutex lifeline;
|
|
|
|
std::chrono::high_resolution_clock::time_point last_work_time;
|
|
|
|
std::thread thread;
|
|
};
|
|
|
|
class task {
|
|
task_callback_t _callback;
|
|
task_data_t _data;
|
|
std::mutex _lock;
|
|
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::condition_variable _status_changed;
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::atomic<bool> _cancelled;
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::atomic<bool> _completed;
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::atomic<bool> _failed;
|
|
|
|
public:
|
|
task(task_callback_t callback, task_data_t data);
|
|
|
|
public:
|
|
~task();
|
|
|
|
public:
|
|
void run();
|
|
|
|
public:
|
|
void cancel();
|
|
|
|
public:
|
|
bool is_cancelled();
|
|
|
|
public:
|
|
bool is_completed();
|
|
|
|
public:
|
|
bool has_failed();
|
|
|
|
public:
|
|
void wait();
|
|
|
|
public:
|
|
void await_completion();
|
|
};
|
|
|
|
class threadpool {
|
|
std::pair<size_t, size_t> _limits;
|
|
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::mutex _workers_lock;
|
|
std::list<std::shared_ptr<worker_info>> _workers;
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::atomic<size_t> _worker_count;
|
|
std::chrono::high_resolution_clock::time_point _last_worker_death;
|
|
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::mutex _tasks_lock;
|
|
#if __cpp_lib_hardware_interference_size >= 201603
|
|
alignas(std::hardware_destructive_interference_size)
|
|
#endif
|
|
std::condition_variable _tasks_cv;
|
|
std::list<std::shared_ptr<task>> _tasks;
|
|
|
|
public:
|
|
~threadpool();
|
|
|
|
public:
|
|
threadpool(size_t minimum = 2, size_t maximum = std::thread::hardware_concurrency());
|
|
|
|
public:
|
|
std::shared_ptr<task> push(task_callback_t callback, task_data_t data = nullptr);
|
|
|
|
public:
|
|
void pop(std::shared_ptr<task> task);
|
|
|
|
private:
|
|
void spawn(size_t count = 1);
|
|
|
|
private:
|
|
bool die(std::shared_ptr<worker_info>);
|
|
|
|
private:
|
|
void work(std::shared_ptr<worker_info>);
|
|
|
|
public /* Singleton */:
|
|
static std::shared_ptr<streamfx::util::threadpool::threadpool> instance();
|
|
};
|
|
} // namespace streamfx::util::threadpool
|