1 /* 2 * Copyright (c) 1996 Jeffrey Hsu <hsu@freebsd.org>. 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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by John Birrell. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $FreeBSD$ 33 */ 34 35 /* 36 * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. 37 * All rights reserved. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by John Birrell. 50 * 4. Neither the name of the author nor the names of any co-contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 */ 67 68 #include <string.h> 69 #include <stdlib.h> 70 #include <errno.h> 71 #include <pthread.h> 72 #include "thr_private.h" 73 74 __weak_reference(_pthread_mutexattr_init, pthread_mutexattr_init); 75 __weak_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np); 76 __weak_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np); 77 __weak_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype); 78 __weak_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype); 79 __weak_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy); 80 __weak_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared); 81 __weak_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared); 82 83 int 84 _pthread_mutexattr_init(pthread_mutexattr_t *attr) 85 { 86 int ret; 87 pthread_mutexattr_t pattr; 88 89 if ((pattr = (pthread_mutexattr_t) 90 malloc(sizeof(struct pthread_mutex_attr))) == NULL) { 91 ret = ENOMEM; 92 } else { 93 memcpy(pattr, &_pthread_mutexattr_default, 94 sizeof(struct pthread_mutex_attr)); 95 *attr = pattr; 96 ret = 0; 97 } 98 return (ret); 99 } 100 101 int 102 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) 103 { 104 int ret; 105 if (attr == NULL || *attr == NULL) { 106 errno = EINVAL; 107 ret = -1; 108 } else { 109 (*attr)->m_type = kind; 110 ret = 0; 111 } 112 return(ret); 113 } 114 115 int 116 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr) 117 { 118 int ret; 119 if (attr == NULL) { 120 errno = EINVAL; 121 ret = -1; 122 } else { 123 ret = attr->m_type; 124 } 125 return(ret); 126 } 127 128 int 129 _pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type) 130 { 131 int ret; 132 if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) { 133 errno = EINVAL; 134 ret = -1; 135 } else { 136 (*attr)->m_type = type; 137 ret = 0; 138 } 139 return(ret); 140 } 141 142 int 143 _pthread_mutexattr_gettype(pthread_mutexattr_t *attr, int *type) 144 { 145 int ret; 146 147 if (attr == NULL || *attr == NULL || (*attr)->m_type >= 148 PTHREAD_MUTEX_TYPE_MAX) { 149 ret = EINVAL; 150 } else { 151 *type = (*attr)->m_type; 152 ret = 0; 153 } 154 return ret; 155 } 156 157 int 158 _pthread_mutexattr_destroy(pthread_mutexattr_t *attr) 159 { 160 int ret; 161 if (attr == NULL || *attr == NULL) { 162 ret = EINVAL; 163 } else { 164 free(*attr); 165 *attr = NULL; 166 ret = 0; 167 } 168 return(ret); 169 } 170 171 int 172 _pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr, 173 int *pshared) 174 { 175 176 if (attr == NULL || *attr == NULL) 177 return (EINVAL); 178 179 *pshared = PTHREAD_PROCESS_PRIVATE; 180 return (0); 181 } 182 183 int 184 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared) 185 { 186 187 if (attr == NULL || *attr == NULL) 188 return (EINVAL); 189 190 /* Only PTHREAD_PROCESS_PRIVATE is supported. */ 191 if (pshared != PTHREAD_PROCESS_PRIVATE) 192 return (EINVAL); 193 194 return (0); 195 } 196