Blame nptl/pthread_mutexattr_init.c

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/* Copyright (C) 2002-2018 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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#include <string.h>
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#include <pthreadP.h>
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int
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__pthread_mutexattr_init (pthread_mutexattr_t *attr)
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{
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  ASSERT_TYPE_SIZE (pthread_mutexattr_t, __SIZEOF_PTHREAD_MUTEXATTR_T);
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  ASSERT_PTHREAD_INTERNAL_SIZE (pthread_mutexattr_t,
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				struct pthread_mutexattr);
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  if (sizeof (struct pthread_mutexattr) != sizeof (pthread_mutexattr_t))
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    memset (attr, '\0', sizeof (*attr));
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  /* We use bit 31 to signal whether the mutex is going to be
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     process-shared or not.  By default it is zero, i.e., the mutex is
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     not process-shared.  */
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  ((struct pthread_mutexattr *) attr)->mutexkind = PTHREAD_MUTEX_NORMAL;
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  return 0;
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}
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weak_alias (__pthread_mutexattr_init, pthread_mutexattr_init)
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hidden_def (__pthread_mutexattr_init)