1 /*- 2 * Copyright (c) 1998 Alex Nash 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 #include "namespace.h" 30 #include <errno.h> 31 #include <stdlib.h> 32 #include <pthread.h> 33 #include "un-namespace.h" 34 35 #include "thr_private.h" 36 37 __weak_reference(_pthread_rwlockattr_destroy, pthread_rwlockattr_destroy); 38 __weak_reference(_pthread_rwlockattr_getpshared, pthread_rwlockattr_getpshared); 39 __weak_reference(_pthread_rwlockattr_init, pthread_rwlockattr_init); 40 __weak_reference(_pthread_rwlockattr_setpshared, pthread_rwlockattr_setpshared); 41 42 int 43 _pthread_rwlockattr_destroy(pthread_rwlockattr_t *rwlockattr) 44 { 45 pthread_rwlockattr_t prwlockattr; 46 47 if (rwlockattr == NULL) 48 return(EINVAL); 49 50 prwlockattr = *rwlockattr; 51 52 if (prwlockattr == NULL) 53 return(EINVAL); 54 55 free(prwlockattr); 56 57 return(0); 58 } 59 60 int 61 _pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *rwlockattr, 62 int *pshared) 63 { 64 *pshared = (*rwlockattr)->pshared; 65 66 return(0); 67 } 68 69 int 70 _pthread_rwlockattr_init(pthread_rwlockattr_t *rwlockattr) 71 { 72 pthread_rwlockattr_t prwlockattr; 73 74 if (rwlockattr == NULL) 75 return(EINVAL); 76 77 prwlockattr = (pthread_rwlockattr_t) 78 malloc(sizeof(struct pthread_rwlockattr)); 79 80 if (prwlockattr == NULL) 81 return(ENOMEM); 82 83 prwlockattr->pshared = PTHREAD_PROCESS_PRIVATE; 84 *rwlockattr = prwlockattr; 85 86 return(0); 87 } 88 89 int 90 _pthread_rwlockattr_setpshared(pthread_rwlockattr_t *rwlockattr, int pshared) 91 { 92 /* Only PTHREAD_PROCESS_PRIVATE is supported. */ 93 if (pshared != PTHREAD_PROCESS_PRIVATE) 94 return(EINVAL); 95 96 (*rwlockattr)->pshared = pshared; 97 98 return(0); 99 } 100 101