fi2.c

Linux大学上机源码学习

#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#define FIFO_FILE "myfifo"
int main()
{ int fifo_fd,i=0,n,total_byte=0;
  char sendbuf[4096+1];
  fifo_fd=open(FIFO_FILE,O_WRONLY);
  while(i<4){
     n=write(fifo_fd,sendbuf,4096);
     printf("%d write %d bype\n",getpid(),n);
     total_byte+=n;
     i++;
  }
  close(fifo_fd);
  printf("Process %d  finished\n",getpid());
  return 0;
}