2004-11-03 13:51:07 +00:00
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.\" Hey Emacs! This file is -*- nroff -*- source.
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.\"
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.\" Copyright (c) 1992 Drew Eckhardt (drew@cs.colorado.edu), March 28, 1992
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.\"
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.\" Permission is granted to make and distribute verbatim copies of this
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.\" manual provided the copyright notice and this permission notice are
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.\" preserved on all copies.
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.\"
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.\" Permission is granted to copy and distribute modified versions of this
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.\" manual under the conditions for verbatim copying, provided that the
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.\" entire resulting derived work is distributed under the terms of a
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.\" permission notice identical to this one.
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.\"
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.\" Since the Linux kernel and libraries are constantly changing, this
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.\" manual page may be incorrect or out-of-date. The author(s) assume no
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.\" responsibility for errors or omissions, or for damages resulting from
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.\" the use of the information contained herein. The author(s) may not
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.\" have taken the same level of care in the production of this manual,
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.\" which is licensed free of charge, as they might when working
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.\" professionally.
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.\"
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.\" Formatted or processed versions of this manual, if unaccompanied by
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.\" the source, must acknowledge the copyright and authors of this work.
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.\"
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.\" Modified by Michael Haardt <michael@moria.de>
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.\" Modified 1993-07-23 by Rik Faith <faith@cs.unc.edu>
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.\" Modified 1996-10-22 by Eric S. Raymond <esr@thyrsus.com>
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2004-11-03 14:43:40 +00:00
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.\" Modified 2004-06-17 by Michael Kerrisk <mtk-manpages@gmx.net>
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2004-11-03 13:51:07 +00:00
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.\"
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.TH PIPE 2 2004-06-17 "Linux 2.6.7" "Linux Programmer's Manual"
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.SH NAME
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pipe \- create pipe
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.SH SYNOPSIS
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.B #include <unistd.h>
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.sp
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.BI "int pipe(int " filedes "[2]);"
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.SH DESCRIPTION
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2005-10-19 06:54:38 +00:00
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.BR pipe ()
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2004-11-03 13:51:07 +00:00
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creates a pair of file descriptors, pointing to a pipe inode, and places
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them in the array pointed to by
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.IR filedes .
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.I filedes[0]
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is for reading,
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.I filedes[1]
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is for writing.
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.SH "RETURN VALUE"
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On success, zero is returned. On error, \-1 is returned, and
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.I errno
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is set appropriately.
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.SH ERRORS
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.TP
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.B EFAULT
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.I filedes
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is not valid.
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.TP
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.B EMFILE
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Too many file descriptors are in use by the process.
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.TP
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.B ENFILE
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The system limit on the total number of open files has been reached.
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.SH "CONFORMING TO"
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2005-03-31 14:08:14 +00:00
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POSIX.1
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2004-11-03 13:51:07 +00:00
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.SH "SEE ALSO"
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.BR fork (2),
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.BR read (2),
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.BR socketpair (2),
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2005-12-08 18:57:25 +00:00
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.BR write (2),
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.BR pipe (7)
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