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41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SYS_UIO_H
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# error "Never include <bits/uio.h> directly; use <sys/uio.h> instead."
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#endif
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#include <sys/types.h>
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/* We should normally use the Linux kernel header file to define this
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type and macros but this calls for trouble because of the header
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includes other kernel headers. */
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/* Size of object which can be written atomically.
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This macro has different values in different kernel versions. The
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latest versions of ther kernel use 1024 and this is good choice. Since
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the C library implementation of readv/writev is able to emulate the
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functionality even if the currently running kernel does not support
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this large value the readv/writev call will not fail because of this. */
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#define UIO_MAXIOV 1024
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/* Structure for scatter/gather I/O. */
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struct iovec
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{
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void *iov_base; /* Pointer to data. */
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size_t iov_len; /* Length of data. */
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};
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