Implementation of Named Pipes (FIFO)

Pipeline with process named pipe is a device file that is present on the hard disk file with Mkfifo () to create a named pipe that can be used for communication between any two processes client.c (write end) #include <stdio.h> #include < stdlib.h> #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <string.h > #include <fcntl.h>      #define  _PATH_  "/tmp/file.tmp" #define   _size_ 100int main () {    int ret=mkfifo (_path_,0666| S_IFIFO);    //create fifo    if (ret==-1)     {         perror ("Mkfifo");         return 1;    }    int fd=open (_PATH_,O_WRONLY);   //open by the way of write    if (fd<0)      {        printf ("open error\n");     }     char buf[_size_];     memset (buf, '     while ', strlen (BUF) +1);     {(1) &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;SCANF ("%s", buf);         int ret=write (Fd,buf,strlen (BUF) +1);         if (ret<0)         {             printf ("write error!\n");             break;        }         if (strncmp (buf, "Quit", 4) ==0)         {             break;        }     }    close (FD);     return 0;} SERVER.C (read end) #include <stdio.h> #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <fcntl.h> #include <string.h># define _path_  "/tmp/file.tmp" #define  _size_ 100int main () {    int  fd=open (_path_,o_rdonly);     if (fd<0)     {         printf ("open file error\n");         return 1;    }    char buf[_SIZE_];     memset (buf, ' n ', sizeof (BUF));     while (1)     {         int ret=read (fd,buf,sizeof (BUF));         if (ret<=0)   //error or read the end of file         {            printf ( "Error or read the end of file\n ");             break;        }         printf ("%s\n", buf);         if (strncmp (buf, "Quit", 4) ==0)         {             break;        }    }     close (FD);     return 0;} Results:

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Implementation of Named Pipes (FIFO)