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- IIIIOOOO::::::::PPPPiiiippppeeee((((3333)))) IIIIOOOO::::::::PPPPiiiippppeeee((((3333))))
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- NNNNAAAAMMMMEEEE
- IO::pipe - supply object methods for pipes
-
- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- use IO::Pipe;
-
- $pipe = new IO::Pipe;
-
- if($pid = fork()) { # Parent
- $pipe->reader();
-
- while(<$pipe> {
- ....
- }
-
- }
- elsif(defined $pid) { # Child
- $pipe->writer();
-
- print $pipe ....
- }
-
- or
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- $pipe = new IO::Pipe;
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- $pipe->reader(qw(ls -l));
-
- while(<$pipe>) {
- ....
- }
-
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- IO::Pipe provides an interface to createing pipes between processes.
-
- CCCCOOOONNNNSSSSTTTTRRRRCCCCUUUUTTTTOOOORRRR
- new ( [READER, WRITER] )
- Creates a 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.
-
- MMMMEEEETTTTHHHHOOOODDDDSSSS
- 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
-
-
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- PPPPaaaaggggeeee 1111
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- IIIIOOOO::::::::PPPPiiiippppeeee((((3333)))) IIIIOOOO::::::::PPPPiiiippppeeee((((3333))))
-
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- 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.
-
- SSSSEEEEEEEE AAAALLLLSSSSOOOO
- the _I_O::_H_a_n_d_l_e manpage
-
- AAAAUUUUTTTTHHHHOOOORRRR
- Graham Barr <bodg@tiuk.ti.com>
-
- CCCCOOOOPPPPYYYYRRRRIIIIGGGGHHHHTTTT
- 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.
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- PPPPaaaaggggeeee 2222
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