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41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
8 years ago
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/* Copyright (C) 2002-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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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, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _SEMAPHORE_H
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# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
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#endif
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#include <bits/wordsize.h>
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#if __WORDSIZE == 64
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# define __SIZEOF_SEM_T 32
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#else
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# define __SIZEOF_SEM_T 16
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#endif
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/* Value returned if `sem_open' failed. */
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#define SEM_FAILED ((sem_t *) 0)
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typedef union
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{
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char __size[__SIZEOF_SEM_T];
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long int __align;
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} sem_t;
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