1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1996 Jeffrey Hsu <hsu@freebsd.org>. 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 * 3. Neither the name of the author nor the names of any co-contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 /* 33 * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. 34 * All rights reserved. 35 * 36 * Redistribution and use in source and binary forms, with or without 37 * modification, are permitted provided that the following conditions 38 * are met: 39 * 1. Redistributions of source code must retain the above copyright 40 * notice, this list of conditions and the following disclaimer. 41 * 2. Redistributions in binary form must reproduce the above copyright 42 * notice, this list of conditions and the following disclaimer in the 43 * documentation and/or other materials provided with the distribution. 44 * 3. Neither the name of the author nor the names of any co-contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 */ 61 62 #include <sys/cdefs.h> 63 __FBSDID("$FreeBSD$"); 64 65 #include "namespace.h" 66 #include <string.h> 67 #include <stdlib.h> 68 #include <errno.h> 69 #include <pthread.h> 70 #include <pthread_np.h> 71 #include "un-namespace.h" 72 73 #include "thr_private.h" 74 75 __weak_reference(_pthread_mutexattr_init, pthread_mutexattr_init); 76 __weak_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np); 77 __weak_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np); 78 __weak_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype); 79 __weak_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype); 80 __weak_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy); 81 __weak_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared); 82 __weak_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared); 83 __weak_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol); 84 __weak_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol); 85 __weak_reference(_pthread_mutexattr_getprioceiling, 86 pthread_mutexattr_getprioceiling); 87 __weak_reference(_pthread_mutexattr_setprioceiling, 88 pthread_mutexattr_setprioceiling); 89 __weak_reference(_pthread_mutexattr_getrobust, pthread_mutexattr_getrobust); 90 __weak_reference(_pthread_mutexattr_setrobust, pthread_mutexattr_setrobust); 91 92 int 93 _pthread_mutexattr_init(pthread_mutexattr_t *attr) 94 { 95 int ret; 96 pthread_mutexattr_t pattr; 97 98 if ((pattr = (pthread_mutexattr_t) 99 malloc(sizeof(struct pthread_mutex_attr))) == NULL) { 100 ret = ENOMEM; 101 } else { 102 memcpy(pattr, &_pthread_mutexattr_default, 103 sizeof(struct pthread_mutex_attr)); 104 *attr = pattr; 105 ret = 0; 106 } 107 return (ret); 108 } 109 110 int 111 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) 112 { 113 int ret; 114 if (attr == NULL || *attr == NULL) { 115 errno = EINVAL; 116 ret = -1; 117 } else { 118 (*attr)->m_type = kind; 119 ret = 0; 120 } 121 return(ret); 122 } 123 124 int 125 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr) 126 { 127 int ret; 128 129 if (attr == NULL) { 130 errno = EINVAL; 131 ret = -1; 132 } else { 133 ret = attr->m_type; 134 } 135 return (ret); 136 } 137 138 int 139 _pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type) 140 { 141 int ret; 142 143 if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) { 144 ret = EINVAL; 145 } else { 146 (*attr)->m_type = type; 147 ret = 0; 148 } 149 return (ret); 150 } 151 152 int 153 _pthread_mutexattr_gettype(const pthread_mutexattr_t * __restrict attr, 154 int * __restrict type) 155 { 156 int ret; 157 158 if (attr == NULL || *attr == NULL || (*attr)->m_type >= 159 PTHREAD_MUTEX_TYPE_MAX) { 160 ret = EINVAL; 161 } else { 162 *type = (*attr)->m_type; 163 ret = 0; 164 } 165 return (ret); 166 } 167 168 int 169 _pthread_mutexattr_destroy(pthread_mutexattr_t *attr) 170 { 171 int ret; 172 if (attr == NULL || *attr == NULL) { 173 ret = EINVAL; 174 } else { 175 free(*attr); 176 *attr = NULL; 177 ret = 0; 178 } 179 return (ret); 180 } 181 182 int 183 _pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr, 184 int *pshared) 185 { 186 187 if (attr == NULL || *attr == NULL) 188 return (EINVAL); 189 *pshared = (*attr)->m_pshared; 190 return (0); 191 } 192 193 int 194 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared) 195 { 196 197 if (attr == NULL || *attr == NULL || 198 (pshared != PTHREAD_PROCESS_PRIVATE && 199 pshared != PTHREAD_PROCESS_SHARED)) 200 return (EINVAL); 201 (*attr)->m_pshared = pshared; 202 return (0); 203 } 204 205 int 206 _pthread_mutexattr_getprotocol(const pthread_mutexattr_t * __restrict mattr, 207 int * __restrict protocol) 208 { 209 int ret = 0; 210 211 if (mattr == NULL || *mattr == NULL) 212 ret = EINVAL; 213 else 214 *protocol = (*mattr)->m_protocol; 215 216 return (ret); 217 } 218 219 int 220 _pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol) 221 { 222 int ret = 0; 223 224 if (mattr == NULL || *mattr == NULL || 225 protocol < PTHREAD_PRIO_NONE || protocol > PTHREAD_PRIO_PROTECT) 226 ret = EINVAL; 227 else { 228 (*mattr)->m_protocol = protocol; 229 (*mattr)->m_ceiling = THR_MAX_RR_PRIORITY; 230 } 231 return (ret); 232 } 233 234 int 235 _pthread_mutexattr_getprioceiling(const pthread_mutexattr_t * __restrict mattr, 236 int * __restrict prioceiling) 237 { 238 int ret = 0; 239 240 if (mattr == NULL || *mattr == NULL) 241 ret = EINVAL; 242 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 243 ret = EINVAL; 244 else 245 *prioceiling = (*mattr)->m_ceiling; 246 247 return (ret); 248 } 249 250 int 251 _pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) 252 { 253 int ret = 0; 254 255 if (mattr == NULL || *mattr == NULL) 256 ret = EINVAL; 257 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 258 ret = EINVAL; 259 else 260 (*mattr)->m_ceiling = prioceiling; 261 262 return (ret); 263 } 264 265 int 266 _pthread_mutexattr_getrobust(pthread_mutexattr_t *mattr, int *robust) 267 { 268 int ret; 269 270 if (mattr == NULL || *mattr == NULL) { 271 ret = EINVAL; 272 } else { 273 ret = 0; 274 *robust = (*mattr)->m_robust; 275 } 276 return (ret); 277 } 278 279 int 280 _pthread_mutexattr_setrobust(pthread_mutexattr_t *mattr, int robust) 281 { 282 int ret; 283 284 if (mattr == NULL || *mattr == NULL) { 285 ret = EINVAL; 286 } else if (robust != PTHREAD_MUTEX_STALLED && 287 robust != PTHREAD_MUTEX_ROBUST) { 288 ret = EINVAL; 289 } else { 290 ret = 0; 291 (*mattr)->m_robust = robust; 292 } 293 return (ret); 294 } 295 296