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Viewing changes to Development/languages/C/Samples/fork/pipe.c

  • Committer: Suren A. Chilingaryan
  • Date: 2009-04-09 03:21:08 UTC
  • Revision ID: csa@dside.dyndns.org-20090409032108-w4edamdh4adrgdu3
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Development/languages/C/Samples/fork/pipe.c
 
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#include <stdio.h>
 
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#include <sys/types.h>
 
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#include <sys/stat.h>
 
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#include <fcntl.h>
 
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#include <unistd.h>
 
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#include <sys/socket.h>
 
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extern int errno;
 
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int f[2];
 
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void runparent(pid_t child) {
 
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        char buf[255];
 
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        int readed=1;
 
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        int writed;
 
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        close(f[1]);
 
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        signal(13,sp_handler);
 
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        while (readed>0) {
 
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                readed=read(f[0],buf,254);
 
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                if (readed>0) writed=write(0,buf,readed);
 
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        }
 
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        close(f[0]);
 
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        // Waiting for child to be finished!
 
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        waitpid(child,NULL,0);
 
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}
 
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void runchild() {
 
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        char fl[24];
 
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        int err;
 
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        char buf[100]="Helo!\n\0";
 
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        close (f[0]);
 
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        write(f[1],buf,6);
 
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        close(f[1]);
 
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}
 
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main() {
 
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        pid_t child;
 
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        if (pipe(f)) {
 
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                printf("Error creating pipe, error: $i!\n",errno);
 
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                return;
 
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        }
 
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        child=fork();
 
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        if (child>0) runparent(child);
 
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        else if (child==0) runchild();
 
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        else printf("Error forking child, error: %i!\n",errno);
 
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}