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- IIIIOOOO::::::::PPPPiiiippppeeee((((3333)))) 22223333////JJJJuuuullll////99998888 ((((ppppeeeerrrrllll 5555....000000005555,,,, ppppaaaattttcccchhhh 00002222)))) 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
-
- $pipe = new IO::Pipe;
-
- $pipe->reader(qw(ls -l));
-
- while(<$pipe>) {
- ....
- }
-
-
- 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
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- Page 1 (printed 10/23/98)
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- IIIIOOOO::::::::PPPPiiiippppeeee((((3333)))) 22223333////JJJJuuuullll////99998888 ((((ppppeeeerrrrllll 5555....000000005555,,,, ppppaaaattttcccchhhh 00002222)))) IIIIOOOO::::::::PPPPiiiippppeeee((((3333))))
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-
-
- 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.
-
- 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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- Page 2 (printed 10/23/98)
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