Linux多线程实例 定时重启httpd和mysqld

#include <stdio.h>
#include <pthread.h>void *start_routine(void *arg)
{
while(1)
{
system("service httpd restart");
system("service mysqld restart");
sleep(60*60*6);
} int retvalue = 0;
pthread_exit((void*)&retvalue);
}int main()
{
pthread_t pt;
int ret;
ret = pthread_create(&pt,NULL,(void*)start_routine,0);
if(ret != 0)
{
printf("create thread error");
return 0;
}
int *ret_join = NULL;
pthread_join(pt,(void*)&ret_join);
printf("retvalue: %d\n",*ret_join);
return 0;
}