[C/C++] Signal範例

說明:
Signal範例

Code:

#include <stdio.h>
#include <unistd.h>
#include <signal.h>

static int loop = 1;

void alarm_handler(int a)
{
    printf("Alarm!!!\n");
    loop = 0;
}

int main(int argc, char *argv[])
{
    signal(SIGALRM, alarm_handler);
    
    /* you also can run via "killall -14 xxx" command */
    alarm(9);
    
    while(loop)
    {
    }
    
    printf("Program exit!!!\n");
    
    return 0;
}

Result:

Alarm!!!

Program exit!!!