使用pthread_cond_timedwait把一个线程作为一个定时器使用.

原文：http://blog.csdn.net/lllxy/article/details/3874415

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 #include <pthread.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
 void * Proc(void * arg)
 {
    pthread_cond_t cond;
    pthread_mutex_t mutex;

     pthread_mutex_init(&mutex,NULL);
     pthread_cond_init(&cond,NULL);

    timespec to;

     int i = 0;
     pthread_mutex_lock(&mutex);
     to.tv_sec = time(NULL) + 3;
     to.tv_nsec = 0;
     while (i < 5)
     {

         int err = pthread_cond_timedwait(&cond, &mutex, &to);
         if (err == ETIMEDOUT)
         {
              printf("time out %d: dispatch something.../n",i);
          i++;
         }

     }

      pthread_mutex_unlock(&mutex);


 }
 int main()
 {
     pthread_t pid;
     int i=0;
     printf("create thread.../n");
     pthread_create(&pid,0,Proc,0);
     pthread_join(pid,NULL);
     sleep(1);
     printf("Succeed exit!/n");
 }

使用pthread_cond_timedwait把一个线程作为一个定时器使用.