mythread.cpp

来自「通用 linux 线程池, 使用 C++ 编写, 具有良好的扩展性.」· C++ 代码 · 共 65 行

#include "mythread.h"
#include  <unistd.h>  
#include  <pthread.h>  
#include  <time.h>  

MyThread::MyThread(void)
{
	m_bQuit = false;
	pthread_cond_init(&m_exit, NULL);
	pthread_mutex_init(&m_mutex, NULL);
	start();
}

MyThread::~MyThread(void)
{
}

void MyThread::stop(void)
{
	m_bQuit = true;
	pthread_cond_broadcast(&m_exit);	
	pthread_join(m_id, NULL);
	pthread_cond_destroy(&m_exit);
	pthread_mutex_destroy(&m_mutex);
}
void MyThread::run(void)
{
	int ret = 0;
	int i = 0;
	
	timespec  waitTime;  
//	waitTime.tv_sec  = time(NULL) + 1;   //Wait  for  1  second
//	waitTime.tv_nsec = 500000; /* 500,000 nanoseconds = 500 ms */ 

	while(1)
	{
		i++;
	 
		waitTime.tv_sec  = time(NULL) + 1;   //Wait  for  1  second
		waitTime.tv_nsec = 500000; /* 500,000 nanoseconds = 500 ms */ 


		cout<<"==========================="<<endl;
	
		pthread_mutex_lock(&m_mutex);	
		ret = pthread_cond_timedwait(&m_exit, &m_mutex, (const struct timespec*)&waitTime);
	//	pthread_cond_wait(&m_exit, &m_mutex);
		pthread_mutex_unlock(&m_mutex);

		if(ret !=0 )
		{
                	/* Handle timeout */
			cout<<"timeout..."<<ret<<"......\n"; 
      		}	
		else if(ret == 0)
		{
			cout<<"..........event.......\n";
                	/* condition received a condition signal */ 
			break;
		}
        } 

 
}