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