xref: /dflybsd-src/lib/libthread_xu/thread/thr_rwlockattr.c (revision cf8046a92768d53e67d2533fb51b137d5506248d)
171b3fa15SDavid Xu /*-
271b3fa15SDavid Xu  * Copyright (c) 1998 Alex Nash
371b3fa15SDavid Xu  * All rights reserved.
471b3fa15SDavid Xu  *
571b3fa15SDavid Xu  * Redistribution and use in source and binary forms, with or without
671b3fa15SDavid Xu  * modification, are permitted provided that the following conditions
771b3fa15SDavid Xu  * are met:
871b3fa15SDavid Xu  * 1. Redistributions of source code must retain the above copyright
971b3fa15SDavid Xu  *    notice, this list of conditions and the following disclaimer.
1071b3fa15SDavid Xu  * 2. Redistributions in binary form must reproduce the above copyright
1171b3fa15SDavid Xu  *    notice, this list of conditions and the following disclaimer in the
1271b3fa15SDavid Xu  *    documentation and/or other materials provided with the distribution.
1371b3fa15SDavid Xu  *
1471b3fa15SDavid Xu  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
1571b3fa15SDavid Xu  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1671b3fa15SDavid Xu  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1771b3fa15SDavid Xu  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
1871b3fa15SDavid Xu  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1971b3fa15SDavid Xu  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2071b3fa15SDavid Xu  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2171b3fa15SDavid Xu  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2271b3fa15SDavid Xu  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2371b3fa15SDavid Xu  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2471b3fa15SDavid Xu  * SUCH DAMAGE.
2571b3fa15SDavid Xu  *
2671b3fa15SDavid Xu  * $FreeBSD: src/lib/libpthread/thread/thr_rwlockattr.c,v 1.8 2002/09/16 08:45:35 mini Exp $
2771b3fa15SDavid Xu  */
2871b3fa15SDavid Xu 
29fc71f871SDavid Xu #include "namespace.h"
3071b3fa15SDavid Xu #include <errno.h>
3171b3fa15SDavid Xu #include <stdlib.h>
3271b3fa15SDavid Xu #include <pthread.h>
33fc71f871SDavid Xu #include "un-namespace.h"
34fc71f871SDavid Xu 
3571b3fa15SDavid Xu #include "thr_private.h"
3671b3fa15SDavid Xu 
3771b3fa15SDavid Xu int
_pthread_rwlockattr_destroy(pthread_rwlockattr_t * rwlockattr)3871b3fa15SDavid Xu _pthread_rwlockattr_destroy(pthread_rwlockattr_t *rwlockattr)
3971b3fa15SDavid Xu {
4071b3fa15SDavid Xu 	pthread_rwlockattr_t prwlockattr;
4171b3fa15SDavid Xu 
4271b3fa15SDavid Xu 	if (rwlockattr == NULL)
4371b3fa15SDavid Xu 		return (EINVAL);
4471b3fa15SDavid Xu 	prwlockattr = *rwlockattr;
4571b3fa15SDavid Xu 	if (prwlockattr == NULL)
4671b3fa15SDavid Xu 		return (EINVAL);
47e7bf3f77SMatthew Dillon 	__free(prwlockattr);
4871b3fa15SDavid Xu 	return (0);
4971b3fa15SDavid Xu }
5071b3fa15SDavid Xu 
5171b3fa15SDavid Xu int
_pthread_rwlockattr_getpshared(const pthread_rwlockattr_t * __restrict rwlockattr,int * __restrict pshared)52e7bf3f77SMatthew Dillon _pthread_rwlockattr_getpshared(
53e7bf3f77SMatthew Dillon 	const pthread_rwlockattr_t * __restrict rwlockattr,
54d33005aaSSascha Wildner 	int * __restrict pshared)
5571b3fa15SDavid Xu {
5671b3fa15SDavid Xu 	*pshared = (*rwlockattr)->pshared;
5771b3fa15SDavid Xu 	return (0);
5871b3fa15SDavid Xu }
5971b3fa15SDavid Xu 
6071b3fa15SDavid Xu int
_pthread_rwlockattr_init(pthread_rwlockattr_t * rwlockattr)6171b3fa15SDavid Xu _pthread_rwlockattr_init(pthread_rwlockattr_t *rwlockattr)
6271b3fa15SDavid Xu {
6371b3fa15SDavid Xu 	pthread_rwlockattr_t prwlockattr;
6471b3fa15SDavid Xu 
6571b3fa15SDavid Xu 	if (rwlockattr == NULL)
6671b3fa15SDavid Xu 		return (EINVAL);
6771b3fa15SDavid Xu 
68*cf8046a9Szrj 	prwlockattr = __malloc(sizeof(struct __pthread_rwlockattr_s));
6971b3fa15SDavid Xu 	if (prwlockattr == NULL)
7071b3fa15SDavid Xu 		return (ENOMEM);
7171b3fa15SDavid Xu 
7271b3fa15SDavid Xu 	prwlockattr->pshared = PTHREAD_PROCESS_PRIVATE;
7371b3fa15SDavid Xu 	*rwlockattr = prwlockattr;
7471b3fa15SDavid Xu 	return (0);
7571b3fa15SDavid Xu }
7671b3fa15SDavid Xu 
7771b3fa15SDavid Xu int
_pthread_rwlockattr_setpshared(pthread_rwlockattr_t * rwlockattr,int pshared)7871b3fa15SDavid Xu _pthread_rwlockattr_setpshared(pthread_rwlockattr_t *rwlockattr, int pshared)
7971b3fa15SDavid Xu {
8071b3fa15SDavid Xu 	/* Only PTHREAD_PROCESS_PRIVATE is supported. */
8171b3fa15SDavid Xu 	if (pshared != PTHREAD_PROCESS_PRIVATE)
8271b3fa15SDavid Xu 		return (EINVAL);
8371b3fa15SDavid Xu 	(*rwlockattr)->pshared = pshared;
8471b3fa15SDavid Xu 	return (0);
8571b3fa15SDavid Xu }
8671b3fa15SDavid Xu 
875a1048c8SDavid Xu __strong_reference(_pthread_rwlockattr_destroy, pthread_rwlockattr_destroy);
885a1048c8SDavid Xu __strong_reference(_pthread_rwlockattr_getpshared, pthread_rwlockattr_getpshared);
895a1048c8SDavid Xu __strong_reference(_pthread_rwlockattr_init, pthread_rwlockattr_init);
905a1048c8SDavid Xu __strong_reference(_pthread_rwlockattr_setpshared, pthread_rwlockattr_setpshared);
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