SEARCH
NEW RPMS
DIRECTORIES
ABOUT
FAQ
VARIOUS
BLOG
DONATE


YUM REPOSITORY

 
 

MAN page from CentOS 8 perl-IO-1.40-452.module_el8.4.0+646+45e06e4a.x86_64.rpm

IO::Pipe

Section: Perl Programmers Reference Guide (3pm)
Updated: 2019-10-24
Index 

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 betweenprocesses. 

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 twoarguments, which should be objects blessed into "IO::Handle", or asubclass thereof. These two objects will be used for the system callto "pipe". If no arguments are given then method "handles" is calledon 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 ahandle 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 ahandle 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 objectsblessed into "IO::Pipe::End", or a subclass thereof.
 

SEE ALSO

IO::Handle 

AUTHOR

Graham Barr. Currently maintained by the Perl Porters. Please report allbugs to <perlbugAATTperl.org>. 

COPYRIGHT

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


 

Index

NAME
SYNOPSIS
DESCRIPTION
CONSTRUCTOR
METHODS
SEE ALSO
AUTHOR
COPYRIGHT

This document was created byman2html,using the manual pages.