使用自定义信号

捕获SIGUSR1信号

void catch_Signal(int Sign)
{
    switch (Sign)
    {
    case SIGINT:
        printf("SIGINT Signal
");
        exit(0);
    case SIGUSR1:
        printf("SIGUSR1 Signal
");
    }
}
int main(int arg, char *args[])
{
    signal(SIGINT, catch_Signal);
    signal(SIGUSR1, catch_Signal);
    printf("pid = %d
", getpid());
    while(1)
    {
        sleep(1);
    }
    return 0;
}

发送SIGUSR1信号

int main(int arg, char *args[])
{
    if (arg > 1)
    {
        kill(atoi(args[1]), SIGUSR1);
        printf("sent to %d
", atoi(args[1]));
    }
    return 0;
}

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