#include<stdio.h>
#include<signal.h>
#include<string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
static int pipe_fd[2];
void sig_han(int signo,siginfo_t *obj,void *p)
{
printf("the sighandler :%d \n",signo);
write(pipe_fd[1],"welcome",8);
}
int main()
{
int fd;
char rbuf[8];
struct sigaction act;
if (pipe(pipe_fd) < 0) {
perror("pipe");
}
memset(&act,0,sizeof(act));
act.sa_sigaction = sig_han;
act.sa_flags = SA_RESTART;
if(sigaction(2,&act,NULL) == -1)
perror("sigaction");
printf("test\n");
memset(rbuf, 0, 8);
read(pipe_fd[0],rbuf,sizeof(rbuf));
printf("the read :%s %ld\n",rbuf, strlen(rbuf));
return 0;
}
