sigwait和pthread_kill的使用.只发了一个信号阿？怎么有等到两个？？？？

C/C++ code

/*********************************************************************************//*    sigwait和pthread_kill的使用*//********************************************************************************/#include <stdio.h>#include <stdlib.h>#include <unistd.h>#include <signal.h>#include <pthread.h>void * fun(void * arg){    int *p = (int *)arg;    printf("in pthread:%x %x\n", getpid(), pthread_self());        pthread_kill(*p, SIGINT);    return (void *)0;}int main(){    pthread_t tid;    int err;    sigset_t    st;    int ptid;    int num;        sigfillset(&st);    ptid = pthread_self();        if ((err = pthread_create(&tid, NULL, fun, (void *)(&ptid))) != 0)    {        printf("pthread error!\n");    }        if (sigwait(&st, &num) != 0)    {        printf("sigwait error!\n");    }        //只发了一个信号阿？怎么有等到两个？？？？    printf("the num of signo  is %d \n", num);                //sleep(3);                    printf("in main:%x %x\n", getpid(), pthread_self());    printf("%d \n", pthread_equal(tid, pthread_self()));        return 0;}运行结果：[root@localhost niwen]# gcc 1.c -lpthread[root@localhost niwen]# ./a.outin pthread:35aa b7f50b90the num of signo  is 2 in main:35aa b7f516c00 [root@localhost niwen]# 只发了一个信号阿？怎么有等到两个？？？？

[解决办法]
友情帮顶
[解决办法]
建议lz仔细阅读sigwait的文档
[解决办法]
in pthread:227b b75e0b70

我的机子上只输出这个.
SIGINT 换成SIGUSER1

in pthread:22d8 b7699b70
用户定义信号 1

[解决办法]
呵呵，