b6413b6db8
This basically adds makes use of the C99 restrict keyword, and also adds some 'const's to four threading functions: pthread_mutexattr_gettype(), pthread_mutexattr_getprioceiling(), pthread_mutexattr_getprotocol(), and pthread_mutex_getprioceiling. The changes are in accordance to POSIX/SUSv4-2018. Hinted by: DragonFlyBSD Relnotes: yes MFC after: 1 month Differential Revision: D16722
98 lines
2.9 KiB
C
98 lines
2.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2003 David Xu <davidxu@freebsd.org>.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice(s), this list of conditions and the following disclaimer as
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* the first lines of this file unmodified other than the possible
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* addition of one or more copyright notices.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice(s), this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "namespace.h"
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#include <errno.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include "un-namespace.h"
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#include "thr_private.h"
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__weak_reference(_pthread_barrierattr_destroy, pthread_barrierattr_destroy);
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__weak_reference(_pthread_barrierattr_init, pthread_barrierattr_init);
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__weak_reference(_pthread_barrierattr_setpshared,
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pthread_barrierattr_setpshared);
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__weak_reference(_pthread_barrierattr_getpshared,
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pthread_barrierattr_getpshared);
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int
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_pthread_barrierattr_destroy(pthread_barrierattr_t *attr)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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free(*attr);
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return (0);
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}
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int
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_pthread_barrierattr_getpshared(const pthread_barrierattr_t * __restrict attr,
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int * __restrict pshared)
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{
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if (attr == NULL || *attr == NULL)
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return (EINVAL);
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*pshared = (*attr)->pshared;
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return (0);
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}
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int
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_pthread_barrierattr_init(pthread_barrierattr_t *attr)
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{
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if (attr == NULL)
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return (EINVAL);
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if ((*attr = malloc(sizeof(struct pthread_barrierattr))) == NULL)
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return (ENOMEM);
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(*attr)->pshared = PTHREAD_PROCESS_PRIVATE;
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return (0);
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}
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int
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_pthread_barrierattr_setpshared(pthread_barrierattr_t *attr, int pshared)
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{
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if (attr == NULL || *attr == NULL ||
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(pshared != PTHREAD_PROCESS_PRIVATE &&
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pshared != PTHREAD_PROCESS_SHARED))
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return (EINVAL);
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(*attr)->pshared = pshared;
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return (0);
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}
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