由于在项目和个人测试程序中经常用到，因此在这里备份下，以后每次来抄

/*---------------------------------------------------------------------------*/
/**
* @brief termination_handler
*/
void termination_handler(int signum)
{
    signal(signum, SIG_DFL);
    raise(signum);
}

/*---------------------------------------------------------------------------*/
/**
* @brief install_signal_handler
*/
void install_signal_handler()
{
    struct sigaction sig_action;

    sig_action.sa_handler = termination_handler;
    sigemptyset(&sig_action.sa_mask);
    sig_action.sa_flags = 0;

    sigaction(SIGINT, &sig_action, NULL);
    sigaction(SIGHUP, &sig_action, NULL);
    sigaction(SIGABRT, &sig_action, NULL);
    sigaction(SIGTERM, &sig_action, NULL);
}
 

/*---------------------------------------------------------------------------*/
/**
* @brief main
*/
int main(int argc, char** argv)
{
    install_signal_handler();

    while(true)；

    return 0;

}