http://topic.youkuaiyun.com/u/20090219/11/738374C4-C9B5-4A79-B671-1C844A2668B1.html
贴个Linux的吧,不清楚的自己man man。
- C/C++ code
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#include <stdio.h> #include <unistd.h> #include <sys/time.h> #include <signal.h> void alarm_handler(int signum) { printf("hello, there!\n"); } int main(void) { struct itimerval timer; timer.it_interval.tv_sec = 1; timer.it_interval.tv_usec = 0; timer.it_value.tv_sec = 1; timer.it_value.tv_usec = 0; setitimer(ITIMER_REAL, &timer, NULL); signal(SIGALRM, alarm_handler); while(1) pause(); return 0; }