mirror of https://github.com/mkerrisk/man-pages
68 lines
2.0 KiB
Groff
68 lines
2.0 KiB
Groff
.\" Copyright (c) 2006 by Michael Kerrisk <mtk.manpages@gmail.com>
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.\"
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.\" %%%LICENSE_START(VERBATIM)
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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.\" manual page may be incorrect or out-of-date.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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.\" %%%LICENSE_END
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.\"
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.TH FCLOSEALL 3 2013-06-21 "GNU" "Linux Programmer's Manual"
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.SH NAME
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fcloseall \- close all open streams
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.SH SYNOPSIS
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.nf
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.BR "#define _GNU_SOURCE" " /* See feature_test_macros(7) */"
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.B #include <stdio.h>
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.sp
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.B int fcloseall(void);
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.fi
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.SH DESCRIPTION
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The
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.BR fcloseall ()
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function closes all of the calling process's open streams.
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Buffered output for each stream is written before it is closed
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(as for
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.BR fflush (3));
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buffered input is discarded.
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The standard streams,
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.IR stdin ,
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.IR stdout ,
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and
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.I stderr
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are also closed.
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.SH RETURN VALUE
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This function returns 0 if all files were successfully closed;
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on error,
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.B EOF
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is returned.
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.SH ATTRIBUTES
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.SS Multithreading (see pthreads(7))
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The
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.BR fcloseall ()
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function does not lock the streams, so it is not thread-safe.
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.SH CONFORMING TO
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This function is a GNU extension.
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.SH SEE ALSO
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.BR close (2),
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.BR fclose (3),
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.BR fflush (3),
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.BR fopen (3),
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.BR setbuf (3)
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