IO::pipe - supply object methods for pipes
use IO::Pipe;
$pipe = new IO::Pipe;
if($pid = fork()) { # Parent
$pipe->reader();
while(<$pipe> {
....
}
}
elsif(defined $pid) { # Child
$pipe->writer();
print $pipe ....
}
or
$pipe = new IO::Pipe;
$pipe->reader(qw(ls -l));
while(<$pipe>) {
....
}
IO::Pipe provides an interface to createing pipes between processes.
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.
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.
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.
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.
Graham Barr <bodg@tiuk.ti.com>
Copyright (c) 1996 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
If rather than formatting bugs, you encounter substantive content errors in these documents, such as mistakes in the explanations or code, please use the perlbug utility included with the Perl distribution.