IO::Pipe
See the current Perl documentation for IO::Pipe.
Here is our local, out-dated (pre-5.6) version:
IO::pipe - supply object methods for pipes
use IO::Pipe;
$pipe = new IO::Pipe;
if($pid = fork()) { # Parent $pipe->reader();
while(<$pipe> { .... }
IO::Pipe
provides an interface to createing pipes between processes.
CONSTRCUTOR
- new ( [READER, WRITER] )
-
Creates a
IO::Pipe
, which is a reference to a newly created symbol (see theSymbol
package).IO::Pipe::new
optionally takes two arguments, which should be objects blessed intoIO::Handle
, or a subclass thereof. These two objects will be used for the system call to pipe. If no arguments are given then methodhandles
is called on the newIO::Pipe
object.These two handles are held in the array part of the GLOB until either
reader
orwriter
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. IfARGS
are given then fork is called andARGS
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. IfARGS
are given then fork is called andARGS
are passed to exec. - handles ()
-
This method is called during construction by
IO::Pipe::new
on the newly createdIO::Pipe
object. It returns an array of two objects blessed intoIO::Pipe::End
, or a subclass thereof.
SEE ALSO
AUTHOR
Graham Barr <bodg@tiuk.ti.com>
COPYRIGHT
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.