linux管道通信

#include "public.h"

int main()
{
 int result=-1;
 int fd[2],nbytes;
 pid_t pid;
 char string[]="你好，管道";
 char readbuffer[80];
 int *write_fd=&fd[1];
 int *read_fd=&fd[0];
 result=pipe(fd);
 if (-1==result)
 {
  printf("建立管道失败\n");
  return -1;
 }
 pid=fork();
 if (-1==pid)
 {
  printf("fork 进程失败\n");
  return -1;
 }
 if (0==pid)
 {
  close(*read_fd);
  result=write(*write_fd,string,strlen(string));
  return 0;
 }
 else
 {
  close(*write_fd);
  nbytes=read(*read_fd,readbuffer,sizeof(readbuffer));
  printf("接受到%d个数据，内容为:%s\n",nbytes,readbuffer);
 }
 return 0;
}