IO::Pipe(3) - phpMan

IO::Pipe(3pm)                    Perl Programmers Reference Guide                   IO::Pipe(3pm)



NAME
       IO::Pipe - supply object methods for pipes

SYNOPSIS
               use IO::Pipe;

               $pipe = IO::Pipe->new();

               if($pid = fork()) { # Parent
                   $pipe->reader();

                   while(<$pipe>) {
                       ...
                   }

               }
               elsif(defined $pid) { # Child
                   $pipe->writer();

                   print $pipe ...
               }

               or

               $pipe = IO::Pipe->new();

               $pipe->reader(qw(ls -l));

               while(<$pipe>) {
                   ...
               }

DESCRIPTION
       "IO::Pipe" provides an interface to creating pipes between processes.

CONSTRUCTOR
       new ( [READER, WRITER] )
           Creates an "IO::Pipe", which is a reference to a newly created symbol (see the
           "Symbol" package). "IO::Pipe::new" optionally takes two arguments, which should be
           objects blessed into "IO::Handle", or a subclass thereof. These two objects will be
           used for the system call to "pipe". If no arguments are given then method "handles" is
           called on the new "IO::Pipe" object.

           These two handles are held in the array part of the GLOB until either "reader" or
           "writer" is called.

METHODS
       reader ([ARGS])
           The object is re-blessed into a sub-class of "IO::Handle", and becomes a handle at the
           reading end of the pipe. If "ARGS" are given then "fork" is called and "ARGS" are
           passed to exec.

       writer ([ARGS])
           The object is re-blessed into a sub-class of "IO::Handle", and becomes a handle at the
           writing end of the pipe. If "ARGS" are given then "fork" is called and "ARGS" are
           passed to exec.

       handles ()
           This method is called during construction by "IO::Pipe::new" on the newly created
           "IO::Pipe" object. It returns an array of two objects blessed into "IO::Pipe::End", or
           a subclass thereof.

SEE ALSO
       IO::Handle

AUTHOR
       Graham Barr. Currently maintained by the Perl Porters.  Please report all bugs to
       <perlbug AT perl.org>.

COPYRIGHT
       Copyright (c) 1996-8 Graham Barr <gbarr AT pobox.com>. All rights reserved.  This program is
       free software; you can redistribute it and/or modify it under the same terms as Perl
       itself.



perl v5.16.3                                2013-03-04                              IO::Pipe(3pm)

Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
On Apache
Under GNU General Public License
2024-04-24 17:52 @3.128.199.162 CrawledBy Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)