mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-22 19:00:01 +08:00
256 lines
8.2 KiB
C++
256 lines
8.2 KiB
C++
/*
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* Copyright (c) 2016-present The ZLMediaKit project authors. All Rights Reserved.
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*
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* This file is part of ZLMediaKit(https://github.com/ZLMediaKit/ZLMediaKit).
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*
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* Use of this source code is governed by MIT-like license that can be found in the
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* LICENSE file in the root of the source tree. All contributing project authors
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* may be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MK_THREAD_H
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#define MK_THREAD_H
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#include <assert.h>
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#include "mk_common.h"
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#include "mk_tcp.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// /////////////////////////////////////////事件线程///////////////////////////////////////////// [AUTO-TRANSLATED:6d564b3b]
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// /////////////////////////////////////////事件线程/////////////////////////////////////////////
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typedef struct mk_thread_t *mk_thread;
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/**
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* 获取tcp会话对象所在事件线程
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* @param ctx tcp会话对象
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* @return 对象所在事件线程
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* Get the event thread where the tcp session object is located
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* @param ctx tcp session object
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* @return The event thread where the object is located
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* [AUTO-TRANSLATED:17da57ec]
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*/
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API_EXPORT mk_thread API_CALL mk_thread_from_tcp_session(mk_tcp_session ctx);
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/**
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* 获取tcp客户端对象所在事件线程
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* @param ctx tcp客户端
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* @return 对象所在事件线程
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* Get the event thread where the tcp client object is located
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* @param ctx tcp client
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* @return The event thread where the object is located
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* [AUTO-TRANSLATED:15d4174b]
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*/
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API_EXPORT mk_thread API_CALL mk_thread_from_tcp_client(mk_tcp_client ctx);
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/**
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* 根据负载均衡算法，从事件线程池中随机获取一个事件线程
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* 如果在事件线程内执行此函数将返回本事件线程
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* 事件线程指的是定时器、网络io事件线程
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* @return 事件线程
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* Get an event thread randomly from the event thread pool according to the load balancing algorithm
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* If this function is executed within the event thread, it will return the current event thread
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* Event thread refers to timer, network io event thread
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* @return Event thread
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* [AUTO-TRANSLATED:5da37e1f]
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*/
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API_EXPORT mk_thread API_CALL mk_thread_from_pool();
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/**
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* 根据负载均衡算法，从后台线程池中随机获取一个线程
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* 后台线程本质与事件线程相同，只是优先级更低，同时可以执行短时间的阻塞任务
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* ZLMediaKit中后台线程用于dns解析、mp4点播时的文件解复用
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* @return 后台线程
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* Get a thread randomly from the background thread pool according to the load balancing algorithm
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* Background threads are essentially the same as event threads, but they have lower priority and can execute short-term blocking tasks
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* Background threads in ZLMediaKit are used for dns resolution, file demultiplexing during mp4 on-demand
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* @return Background thread
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* [AUTO-TRANSLATED:3b552537]
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*/
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API_EXPORT mk_thread API_CALL mk_thread_from_pool_work();
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typedef struct mk_thread_pool_t *mk_thread_pool;
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/**
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* 创建线程池
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* @param name 线程池名称，方便调试
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* @param n_thread 线程个数，0时为cpu个数
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* @param priority 线程优先级，分为PRIORITY_LOWEST = 0,PRIORITY_LOW, PRIORITY_NORMAL, PRIORITY_HIGH, PRIORITY_HIGHEST
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* @return 线程池
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* Create a thread pool
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* @param name Thread pool name, for debugging
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* @param n_thread Number of threads, 0 for the number of cpus
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* @param priority Thread priority, divided into PRIORITY_LOWEST = 0,PRIORITY_LOW, PRIORITY_NORMAL, PRIORITY_HIGH, PRIORITY_HIGHEST
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* @return Thread pool
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* [AUTO-TRANSLATED:177acea2]
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*/
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API_EXPORT mk_thread_pool API_CALL mk_thread_pool_create(const char *name, size_t n_thread, int priority);
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/**
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* 销毁线程池
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* @param pool 线程池
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* @return 0:成功
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* Destroy the thread pool
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* @param pool Thread pool
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* @return 0: Success
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* [AUTO-TRANSLATED:1f1b3582]
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*/
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API_EXPORT int API_CALL mk_thread_pool_release(mk_thread_pool pool);
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/**
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* 从线程池获取一个线程
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* @param pool 线程池
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* @return 线程
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* Get a thread from the thread pool
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* @param pool Thread pool
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* @return Thread
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* [AUTO-TRANSLATED:f47de48e]
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*/
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API_EXPORT mk_thread API_CALL mk_thread_from_thread_pool(mk_thread_pool pool);
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// /////////////////////////////////////////线程切换///////////////////////////////////////////// [AUTO-TRANSLATED:5fc795bf]
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// /////////////////////////////////////////线程切换/////////////////////////////////////////////
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typedef void (API_CALL *on_mk_async)(void *user_data);
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/**
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* 切换到事件线程并异步执行
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* @param ctx 事件线程
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* @param cb 回调函数
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* @param user_data 用户数据指针
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* Switch to the event thread and execute asynchronously
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* @param ctx Event thread
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* @param cb Callback function
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* @param user_data User data pointer
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* [AUTO-TRANSLATED:55773ed5]
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*/
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API_EXPORT void API_CALL mk_async_do(mk_thread ctx, on_mk_async cb, void *user_data);
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API_EXPORT void API_CALL mk_async_do2(mk_thread ctx, on_mk_async cb, void *user_data, on_user_data_free user_data_free);
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/**
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* 切换到事件线程并延时执行
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* @param ctx 事件线程
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* @param ms 延时时间，单位毫秒
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* @param cb 回调函数
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* @param user_data 用户数据指针
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* Switch to the event thread and execute with delay
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* @param ctx Event thread
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* @param ms Delay time, in milliseconds
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* @param cb Callback function
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* @param user_data User data pointer
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* [AUTO-TRANSLATED:35dfdb0e]
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*/
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API_EXPORT void API_CALL mk_async_do_delay(mk_thread ctx, size_t ms, on_mk_async cb, void *user_data);
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API_EXPORT void API_CALL mk_async_do_delay2(mk_thread ctx, size_t ms, on_mk_async cb, void *user_data, on_user_data_free user_data_free);
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/**
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* 切换到事件线程并同步执行
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* @param ctx 事件线程
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* @param cb 回调函数
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* @param user_data 用户数据指针
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* Switch to the event thread and execute synchronously
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* @param ctx Event thread
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* @param cb Callback function
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* @param user_data User data pointer
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* [AUTO-TRANSLATED:1326dfb2]
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*/
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API_EXPORT void API_CALL mk_sync_do(mk_thread ctx, on_mk_async cb, void *user_data);
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// /////////////////////////////////////////定时器///////////////////////////////////////////// [AUTO-TRANSLATED:7f76781c]
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// /////////////////////////////////////////定时器/////////////////////////////////////////////
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typedef struct mk_timer_t *mk_timer;
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/**
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* 定时器触发事件
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* @return 下一次触发延时(单位毫秒)，返回0则不再重复
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* Timer trigger event
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* @return Next trigger delay (in milliseconds), return 0 to stop repeating
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* [AUTO-TRANSLATED:f8846f56]
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*/
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typedef uint64_t (API_CALL *on_mk_timer)(void *user_data);
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/**
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* 创建定时器
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* @param ctx 线程对象
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* @param delay_ms 执行延时，单位毫秒
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* @param cb 回调函数
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* @param user_data 用户数据指针
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* @return 定时器对象
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* Create a timer
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* @param ctx Thread object
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* @param delay_ms Execution delay, in milliseconds
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* @param cb Callback function
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* @param user_data User data pointer
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* @return Timer object
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* [AUTO-TRANSLATED:2d47864a]
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*/
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API_EXPORT mk_timer API_CALL mk_timer_create(mk_thread ctx, uint64_t delay_ms, on_mk_timer cb, void *user_data);
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API_EXPORT mk_timer API_CALL mk_timer_create2(mk_thread ctx, uint64_t delay_ms, on_mk_timer cb, void *user_data, on_user_data_free user_data_free);
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/**
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* 销毁和取消定时器
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* @param ctx 定时器对象
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* Destroy and cancel the timer
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* @param ctx Timer object
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* [AUTO-TRANSLATED:3fdb8534]
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*/
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API_EXPORT void API_CALL mk_timer_release(mk_timer ctx);
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// /////////////////////////////////////////信号量///////////////////////////////////////////// [AUTO-TRANSLATED:f41da57a]
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// /////////////////////////////////////////信号量/////////////////////////////////////////////
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typedef struct mk_sem_t *mk_sem;
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/**
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* 创建信号量
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* Create a semaphore
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* [AUTO-TRANSLATED:dcd83058]
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*/
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API_EXPORT mk_sem API_CALL mk_sem_create();
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/**
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* 销毁信号量
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* Destroy the semaphore
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* [AUTO-TRANSLATED:b298797b]
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*/
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API_EXPORT void API_CALL mk_sem_release(mk_sem sem);
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/**
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* 信号量加n
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* Increase the semaphore by n
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* [AUTO-TRANSLATED:1f455c5d]
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*/
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API_EXPORT void API_CALL mk_sem_post(mk_sem sem, size_t n);
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/**
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* 信号量减1
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* @param sem
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* Decrease the semaphore by 1
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* @param sem
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* [AUTO-TRANSLATED:626595d8]
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*/
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API_EXPORT void API_CALL mk_sem_wait(mk_sem sem);
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#ifdef __cplusplus
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}
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#endif
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#endif //MK_THREAD_H
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