fork download
copy 
  1. #include<dirent.h>
  2. #include<string.h>
  3. #include<stdio.h>
  4. #include<stdlib.h>
  5. #include<unistd.h>
  6.  
  7. int main()
  8. {
  9.     int canal_son[2];
  10.     int canal_father[2];
  11.     pipe(canal_father);
  12.     pipe(canal_son);
  13.  
  14.     if (fork()==0)
  15.     {
  16.         close(canal_father[1]);
  17.         close(canal_son[0]);
  18.  
  19.         printf("Son %d\n",getpid());
  20.         int j;
  21.         for(j=0;j<5;j++)
  22.         {
  23.             char mesaj_father[20] = {0};
  24.             if (read(canal_father[0],mesaj_father,sizeof(mesaj_father)) > 0)
  25.             {
  26.                 printf("The message from father is: %s \n",mesaj_father);
  27.                 write(canal_son[1],"son",3);
  28.             }
  29.         }
  30.     }
  31.     else
  32.     {
  33.         close(canal_father[0]);
  34.         close(canal_son[1]);
  35.  
  36.         int i=5;
  37.         for (i=0;i<5;i++)
  38.         {
  39.             char mesaj_son[20] = {0};
  40.             write(canal_father[1],"mesas",5);
  41.             if (read(canal_son[0],mesaj_son,sizeof(mesaj_son)) > 0)
  42.                 printf("we are in father:%s\n",mesaj_son);
  43.         }
  44.     }
  45.     return 0;
  46. }
Success #stdin #stdout 0s 1832KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Son 14208
The message from father is: mesas 
The message from father is: mesas 
The message from father is: mesas 
The message from father is: mesas 
The message from father is: mesas 
we are in father:son
we are in father:son
we are in father:son
we are in father:son
we are in father:son
https://ideone.com/14qNTi
language:
C99 (gcc 8.3)
created:
12 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!