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(_thr_mutexattr_init, pthread_mutexattr_init); 76 __weak_reference(_thr_mutexattr_init, _pthread_mutexattr_init); 77 __weak_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np); 78 __weak_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np); 79 __weak_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype); 80 __weak_reference(_thr_mutexattr_settype, pthread_mutexattr_settype); 81 __weak_reference(_thr_mutexattr_settype, _pthread_mutexattr_settype); 82 __weak_reference(_thr_mutexattr_destroy, pthread_mutexattr_destroy); 83 __weak_reference(_thr_mutexattr_destroy, _pthread_mutexattr_destroy); 84 __weak_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared); 85 __weak_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared); 86 __weak_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol); 87 __weak_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol); 88 __weak_reference(_pthread_mutexattr_getprioceiling, 89 pthread_mutexattr_getprioceiling); 90 __weak_reference(_pthread_mutexattr_setprioceiling, 91 pthread_mutexattr_setprioceiling); 92 __weak_reference(_thr_mutexattr_getrobust, pthread_mutexattr_getrobust); 93 __weak_reference(_thr_mutexattr_getrobust, _pthread_mutexattr_getrobust); 94 __weak_reference(_thr_mutexattr_setrobust, pthread_mutexattr_setrobust); 95 __weak_reference(_thr_mutexattr_setrobust, _pthread_mutexattr_setrobust); 96 97 int 98 _thr_mutexattr_init(pthread_mutexattr_t *attr) 99 { 100 int ret; 101 pthread_mutexattr_t pattr; 102 103 if ((pattr = (pthread_mutexattr_t) 104 malloc(sizeof(struct pthread_mutex_attr))) == NULL) { 105 ret = ENOMEM; 106 } else { 107 memcpy(pattr, &_pthread_mutexattr_default, 108 sizeof(struct pthread_mutex_attr)); 109 *attr = pattr; 110 ret = 0; 111 } 112 return (ret); 113 } 114 115 int 116 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) 117 { 118 int ret; 119 if (attr == NULL || *attr == NULL) { 120 errno = EINVAL; 121 ret = -1; 122 } else { 123 (*attr)->m_type = kind; 124 ret = 0; 125 } 126 return(ret); 127 } 128 129 int 130 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr) 131 { 132 int ret; 133 134 if (attr == NULL) { 135 errno = EINVAL; 136 ret = -1; 137 } else { 138 ret = attr->m_type; 139 } 140 return (ret); 141 } 142 143 int 144 _thr_mutexattr_settype(pthread_mutexattr_t *attr, int type) 145 { 146 int ret; 147 148 if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) { 149 ret = EINVAL; 150 } else { 151 (*attr)->m_type = type; 152 ret = 0; 153 } 154 return (ret); 155 } 156 157 int 158 _pthread_mutexattr_gettype(const pthread_mutexattr_t * __restrict attr, 159 int * __restrict type) 160 { 161 int ret; 162 163 if (attr == NULL || *attr == NULL || (*attr)->m_type >= 164 PTHREAD_MUTEX_TYPE_MAX) { 165 ret = EINVAL; 166 } else { 167 *type = (*attr)->m_type; 168 ret = 0; 169 } 170 return (ret); 171 } 172 173 int 174 _thr_mutexattr_destroy(pthread_mutexattr_t *attr) 175 { 176 int ret; 177 if (attr == NULL || *attr == NULL) { 178 ret = EINVAL; 179 } else { 180 free(*attr); 181 *attr = NULL; 182 ret = 0; 183 } 184 return (ret); 185 } 186 187 int 188 _pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr, 189 int *pshared) 190 { 191 192 if (attr == NULL || *attr == NULL) 193 return (EINVAL); 194 *pshared = (*attr)->m_pshared; 195 return (0); 196 } 197 198 int 199 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared) 200 { 201 202 if (attr == NULL || *attr == NULL || 203 (pshared != PTHREAD_PROCESS_PRIVATE && 204 pshared != PTHREAD_PROCESS_SHARED)) 205 return (EINVAL); 206 (*attr)->m_pshared = pshared; 207 return (0); 208 } 209 210 int 211 _pthread_mutexattr_getprotocol(const pthread_mutexattr_t * __restrict mattr, 212 int * __restrict protocol) 213 { 214 int ret = 0; 215 216 if (mattr == NULL || *mattr == NULL) 217 ret = EINVAL; 218 else 219 *protocol = (*mattr)->m_protocol; 220 221 return (ret); 222 } 223 224 int 225 _pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol) 226 { 227 int ret = 0; 228 229 if (mattr == NULL || *mattr == NULL || 230 protocol < PTHREAD_PRIO_NONE || protocol > PTHREAD_PRIO_PROTECT) 231 ret = EINVAL; 232 else { 233 (*mattr)->m_protocol = protocol; 234 (*mattr)->m_ceiling = THR_MAX_RR_PRIORITY; 235 } 236 return (ret); 237 } 238 239 int 240 _pthread_mutexattr_getprioceiling(const pthread_mutexattr_t * __restrict mattr, 241 int * __restrict prioceiling) 242 { 243 int ret = 0; 244 245 if (mattr == NULL || *mattr == NULL) 246 ret = EINVAL; 247 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 248 ret = EINVAL; 249 else 250 *prioceiling = (*mattr)->m_ceiling; 251 252 return (ret); 253 } 254 255 int 256 _pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) 257 { 258 int ret = 0; 259 260 if (mattr == NULL || *mattr == NULL) 261 ret = EINVAL; 262 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 263 ret = EINVAL; 264 else 265 (*mattr)->m_ceiling = prioceiling; 266 267 return (ret); 268 } 269 270 int 271 _thr_mutexattr_getrobust(pthread_mutexattr_t *mattr, int *robust) 272 { 273 int ret; 274 275 if (mattr == NULL || *mattr == NULL) { 276 ret = EINVAL; 277 } else { 278 ret = 0; 279 *robust = (*mattr)->m_robust; 280 } 281 return (ret); 282 } 283 284 int 285 _thr_mutexattr_setrobust(pthread_mutexattr_t *mattr, int robust) 286 { 287 int ret; 288 289 if (mattr == NULL || *mattr == NULL) { 290 ret = EINVAL; 291 } else if (robust != PTHREAD_MUTEX_STALLED && 292 robust != PTHREAD_MUTEX_ROBUST) { 293 ret = EINVAL; 294 } else { 295 ret = 0; 296 (*mattr)->m_robust = robust; 297 } 298 return (ret); 299 } 300 301