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 prwlockattr = *rwlockattr; 50 if (prwlockattr == NULL) 51 return (EINVAL); 52 free(prwlockattr); 53 return (0); 54 } 55 56 int 57 _pthread_rwlockattr_getpshared(const pthread_rwlockattr_t *rwlockattr, 58 int *pshared) 59 { 60 61 *pshared = (*rwlockattr)->pshared; 62 return (0); 63 } 64 65 int 66 _pthread_rwlockattr_init(pthread_rwlockattr_t *rwlockattr) 67 { 68 pthread_rwlockattr_t prwlockattr; 69 70 if (rwlockattr == NULL) 71 return (EINVAL); 72 73 prwlockattr = malloc(sizeof(struct pthread_rwlockattr)); 74 if (prwlockattr == NULL) 75 return (ENOMEM); 76 77 prwlockattr->pshared = PTHREAD_PROCESS_PRIVATE; 78 *rwlockattr = prwlockattr; 79 return (0); 80 } 81 82 int 83 _pthread_rwlockattr_setpshared(pthread_rwlockattr_t *rwlockattr, int pshared) 84 { 85 86 if (pshared != PTHREAD_PROCESS_PRIVATE && 87 pshared != PTHREAD_PROCESS_SHARED) 88 return (EINVAL); 89 (*rwlockattr)->pshared = pshared; 90 return (0); 91 } 92