mirror of
https://gitee.com/acl-dev/acl.git
synced 2024-12-14 00:40:55 +08:00
9697f95b8f
This reverts commit 15d999759e
.
79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
#pragma once
|
||
#include "../acl_cpp_define.hpp"
|
||
#include "noncopyable.hpp"
|
||
|
||
#if !defined(_WIN32) && !defined(_WIN64)
|
||
# include <pthread.h>
|
||
# ifndef acl_pthread_cond_t
|
||
# define acl_pthread_cond_t pthread_cond_t
|
||
# endif
|
||
#else
|
||
struct acl_pthread_cond_t;
|
||
#endif
|
||
|
||
namespace acl {
|
||
|
||
class thread_mutex;
|
||
|
||
/**
|
||
* 线程条件变量
|
||
*/
|
||
class ACL_CPP_API thread_cond : public noncopyable
|
||
{
|
||
public:
|
||
/**
|
||
* 构造方法
|
||
* @param mutex {thread_mutex*} 当该参数非 NULL 时,内部自动引用
|
||
* 该线程锁,否则,内部创建线程锁
|
||
*/
|
||
thread_cond(thread_mutex* mutex = NULL);
|
||
~thread_cond(void);
|
||
|
||
/**
|
||
* 等待线程条件变量就绪
|
||
* @param microseconds {long long} 等待条件变量就绪的超时时间(微秒级)
|
||
* > 0 时表示等待超时的时间
|
||
* == 0,不等待
|
||
* < 0 则一直等待直到条件变量就绪
|
||
* @param locked {bool} 该参数表明是否已经将锁加锁,如果还未加锁,则
|
||
* 内部会先自动加锁,方法返回前再解锁;如果外部已经加锁,则内部不对
|
||
* 互斥锁做加锁/解锁处理
|
||
* @return {bool} 返回 true 表示条件变量就绪,否则表示超时或没被通知
|
||
*/
|
||
bool wait(long long microseconds = -1, bool locked = false);
|
||
|
||
/**
|
||
* 通知一个或几个等待在线程条件变量上的线程,表示条件变量就结
|
||
* @return {bool} 返回 false 表示通知失败
|
||
*/
|
||
bool notify(void);
|
||
|
||
/**
|
||
* 通知所有等待在线程条件变量上的线程,表示条件变量就结
|
||
* @return {bool} 返回 false 表示通知失败
|
||
*/
|
||
bool notify_all(void);
|
||
|
||
/**
|
||
* 获得与该线程条件变量绑定的线程互斥锁
|
||
* @return {thread_mutex&}
|
||
*/
|
||
thread_mutex& get_mutex(void) const;
|
||
|
||
/**
|
||
* 获得系统类型的线程条件变量对象
|
||
* @return {acl_pthread_cond_t*}
|
||
*/
|
||
acl_pthread_cond_t* get_cond(void) const;
|
||
|
||
private:
|
||
thread_mutex* mutex_;
|
||
thread_mutex* mutex_internal_;
|
||
acl_pthread_cond_t* cond_;
|
||
|
||
bool block_wait(bool locked);
|
||
bool timed_wait(long long microseconds, bool locked);
|
||
};
|
||
|
||
} // namespace acl
|