testsig.c
418 Bytes
#include <stdlib.h>
#include <stdio.h>
#include <signal.h>
#include <unistd.h>
void alarm_handler(int sig)
{
printf("alarm signal=%d\n", sig);
alarm(1);
}
int main(int argc, char **argv)
{
struct sigaction act;
act.sa_handler = alarm_handler;
sigemptyset(&act.sa_mask);
act.sa_flags = 0;
sigaction(SIGALRM, &act, NULL);
alarm(1);
for(;;) {
sleep(1);
}
return 0;
}