子线程杀父线程

一个主界面上面有控件，点击控件之后出现一个脱离主界面的运用程序，然后将主界面杀死

#include
#include
#include

void *job(void *arg)
{
    printf("%s %d: pid = %d, self = %p\n", __func__, __LINE__, getpid(), pthread_self());
        pthread_detach(pthread_self());
        int papid = getpid();
        system("./1");
        int ret = kill(papid, SIGKILL);
        if(ret)
        {
                printf("kill failled");
        }

        return NULL;
}

int main(void)
{
    pthread_t tid;
    int ret;

    ret = pthread_create(&tid, NULL, job, NULL);
    if (ret < 0)
    {
        perror("pthread_create");
        return -1;
    }
    printf("%s %d: pid = %d, self = %p\n", __func__, __LINE__, getpid(), pthread_self());
    printf("%s %d: tid = %p\n", __func__, __LINE__, tid);

    ret = pthread_equal(tid, pthread_self());
    if (ret == 0)
    {
        printf("tid is not current thread!\n");
    }

    pthread_join(tid, NULL);

    return 0;
}
-----------------------------------------------------------------------------------
#include

int main(void)
{
        while(1)
        {
                printf("Hello");
        }
        return 0;
}

-------------------------------------------------------------------------------------
    while(1)
        {
                printf("Hello");
                sleep(1);
        }