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 #include "namespace.h" 64 #include <string.h> 65 #include <stdlib.h> 66 #include <errno.h> 67 #include <pthread.h> 68 #include <pthread_np.h> 69 #include "un-namespace.h" 70 71 #include "thr_private.h" 72 73 __weak_reference(_thr_mutexattr_init, pthread_mutexattr_init); 74 __weak_reference(_thr_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(_thr_mutexattr_settype, pthread_mutexattr_settype); 79 __weak_reference(_thr_mutexattr_settype, _pthread_mutexattr_settype); 80 __weak_reference(_thr_mutexattr_destroy, pthread_mutexattr_destroy); 81 __weak_reference(_thr_mutexattr_destroy, _pthread_mutexattr_destroy); 82 __weak_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared); 83 __weak_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared); 84 __weak_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol); 85 __weak_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol); 86 __weak_reference(_pthread_mutexattr_getprioceiling, 87 pthread_mutexattr_getprioceiling); 88 __weak_reference(_pthread_mutexattr_setprioceiling, 89 pthread_mutexattr_setprioceiling); 90 __weak_reference(_thr_mutexattr_getrobust, pthread_mutexattr_getrobust); 91 __weak_reference(_thr_mutexattr_getrobust, _pthread_mutexattr_getrobust); 92 __weak_reference(_thr_mutexattr_setrobust, pthread_mutexattr_setrobust); 93 __weak_reference(_thr_mutexattr_setrobust, _pthread_mutexattr_setrobust); 94 95 int 96 _thr_mutexattr_init(pthread_mutexattr_t *attr) 97 { 98 int ret; 99 pthread_mutexattr_t pattr; 100 101 if ((pattr = (pthread_mutexattr_t) 102 malloc(sizeof(struct pthread_mutex_attr))) == NULL) { 103 ret = ENOMEM; 104 } else { 105 memcpy(pattr, &_pthread_mutexattr_default, 106 sizeof(struct pthread_mutex_attr)); 107 *attr = pattr; 108 ret = 0; 109 } 110 return (ret); 111 } 112 113 int 114 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) 115 { 116 int ret; 117 if (attr == NULL || *attr == NULL) { 118 errno = EINVAL; 119 ret = -1; 120 } else { 121 (*attr)->m_type = kind; 122 ret = 0; 123 } 124 return(ret); 125 } 126 127 int 128 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr) 129 { 130 int ret; 131 132 if (attr == NULL) { 133 errno = EINVAL; 134 ret = -1; 135 } else { 136 ret = attr->m_type; 137 } 138 return (ret); 139 } 140 141 int 142 _thr_mutexattr_settype(pthread_mutexattr_t *attr, int type) 143 { 144 int ret; 145 146 if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) { 147 ret = EINVAL; 148 } else { 149 (*attr)->m_type = type; 150 ret = 0; 151 } 152 return (ret); 153 } 154 155 int 156 _pthread_mutexattr_gettype(const pthread_mutexattr_t * __restrict attr, 157 int * __restrict type) 158 { 159 int ret; 160 161 if (attr == NULL || *attr == NULL || (*attr)->m_type >= 162 PTHREAD_MUTEX_TYPE_MAX) { 163 ret = EINVAL; 164 } else { 165 *type = (*attr)->m_type; 166 ret = 0; 167 } 168 return (ret); 169 } 170 171 int 172 _thr_mutexattr_destroy(pthread_mutexattr_t *attr) 173 { 174 int ret; 175 if (attr == NULL || *attr == NULL) { 176 ret = EINVAL; 177 } else { 178 free(*attr); 179 *attr = NULL; 180 ret = 0; 181 } 182 return (ret); 183 } 184 185 int 186 _pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr, 187 int *pshared) 188 { 189 190 if (attr == NULL || *attr == NULL) 191 return (EINVAL); 192 *pshared = (*attr)->m_pshared; 193 return (0); 194 } 195 196 int 197 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared) 198 { 199 200 if (attr == NULL || *attr == NULL || 201 (pshared != PTHREAD_PROCESS_PRIVATE && 202 pshared != PTHREAD_PROCESS_SHARED)) 203 return (EINVAL); 204 (*attr)->m_pshared = pshared; 205 return (0); 206 } 207 208 int 209 _pthread_mutexattr_getprotocol(const pthread_mutexattr_t * __restrict mattr, 210 int * __restrict protocol) 211 { 212 int ret = 0; 213 214 if (mattr == NULL || *mattr == NULL) 215 ret = EINVAL; 216 else 217 *protocol = (*mattr)->m_protocol; 218 219 return (ret); 220 } 221 222 int 223 _pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol) 224 { 225 int ret = 0; 226 227 if (mattr == NULL || *mattr == NULL || 228 protocol < PTHREAD_PRIO_NONE || protocol > PTHREAD_PRIO_PROTECT) 229 ret = EINVAL; 230 else { 231 (*mattr)->m_protocol = protocol; 232 (*mattr)->m_ceiling = THR_MAX_RR_PRIORITY; 233 } 234 return (ret); 235 } 236 237 int 238 _pthread_mutexattr_getprioceiling(const pthread_mutexattr_t * __restrict mattr, 239 int * __restrict prioceiling) 240 { 241 int ret = 0; 242 243 if (mattr == NULL || *mattr == NULL) 244 ret = EINVAL; 245 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 246 ret = EINVAL; 247 else 248 *prioceiling = (*mattr)->m_ceiling; 249 250 return (ret); 251 } 252 253 int 254 _pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) 255 { 256 int ret = 0; 257 258 if (mattr == NULL || *mattr == NULL) 259 ret = EINVAL; 260 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 261 ret = EINVAL; 262 else 263 (*mattr)->m_ceiling = prioceiling; 264 265 return (ret); 266 } 267 268 int 269 _thr_mutexattr_getrobust(pthread_mutexattr_t *mattr, int *robust) 270 { 271 int ret; 272 273 if (mattr == NULL || *mattr == NULL) { 274 ret = EINVAL; 275 } else { 276 ret = 0; 277 *robust = (*mattr)->m_robust; 278 } 279 return (ret); 280 } 281 282 int 283 _thr_mutexattr_setrobust(pthread_mutexattr_t *mattr, int robust) 284 { 285 int ret; 286 287 if (mattr == NULL || *mattr == NULL) { 288 ret = EINVAL; 289 } else if (robust != PTHREAD_MUTEX_STALLED && 290 robust != PTHREAD_MUTEX_ROBUST) { 291 ret = EINVAL; 292 } else { 293 ret = 0; 294 (*mattr)->m_robust = robust; 295 } 296 return (ret); 297 } 298 299