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. Neither the name of the author nor the names of any co-contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* 31 * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. 32 * All rights reserved. 33 * 34 * Redistribution and use in source and binary forms, with or without 35 * modification, are permitted provided that the following conditions 36 * are met: 37 * 1. Redistributions of source code must retain the above copyright 38 * notice, this list of conditions and the following disclaimer. 39 * 2. Redistributions in binary form must reproduce the above copyright 40 * notice, this list of conditions and the following disclaimer in the 41 * documentation and/or other materials provided with the distribution. 42 * 3. Neither the name of the author nor the names of any co-contributors 43 * may be used to endorse or promote products derived from this software 44 * without specific prior written permission. 45 * 46 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 49 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 56 * SUCH DAMAGE. 57 * 58 */ 59 60 #include <sys/cdefs.h> 61 __FBSDID("$FreeBSD$"); 62 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(_pthread_mutexattr_init, pthread_mutexattr_init); 74 __weak_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np); 75 __weak_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np); 76 __weak_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype); 77 __weak_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype); 78 __weak_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy); 79 __weak_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared); 80 __weak_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared); 81 __weak_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol); 82 __weak_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol); 83 __weak_reference(_pthread_mutexattr_getprioceiling, 84 pthread_mutexattr_getprioceiling); 85 __weak_reference(_pthread_mutexattr_setprioceiling, 86 pthread_mutexattr_setprioceiling); 87 __weak_reference(_pthread_mutexattr_getrobust, pthread_mutexattr_getrobust); 88 __weak_reference(_pthread_mutexattr_setrobust, pthread_mutexattr_setrobust); 89 90 int 91 _pthread_mutexattr_init(pthread_mutexattr_t *attr) 92 { 93 int ret; 94 pthread_mutexattr_t pattr; 95 96 if ((pattr = (pthread_mutexattr_t) 97 malloc(sizeof(struct pthread_mutex_attr))) == NULL) { 98 ret = ENOMEM; 99 } else { 100 memcpy(pattr, &_pthread_mutexattr_default, 101 sizeof(struct pthread_mutex_attr)); 102 *attr = pattr; 103 ret = 0; 104 } 105 return (ret); 106 } 107 108 int 109 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) 110 { 111 int ret; 112 if (attr == NULL || *attr == NULL) { 113 errno = EINVAL; 114 ret = -1; 115 } else { 116 (*attr)->m_type = kind; 117 ret = 0; 118 } 119 return(ret); 120 } 121 122 int 123 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr) 124 { 125 int ret; 126 127 if (attr == NULL) { 128 errno = EINVAL; 129 ret = -1; 130 } else { 131 ret = attr->m_type; 132 } 133 return (ret); 134 } 135 136 int 137 _pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type) 138 { 139 int ret; 140 141 if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) { 142 ret = EINVAL; 143 } else { 144 (*attr)->m_type = type; 145 ret = 0; 146 } 147 return (ret); 148 } 149 150 int 151 _pthread_mutexattr_gettype(pthread_mutexattr_t *attr, int *type) 152 { 153 int ret; 154 155 if (attr == NULL || *attr == NULL || (*attr)->m_type >= 156 PTHREAD_MUTEX_TYPE_MAX) { 157 ret = EINVAL; 158 } else { 159 *type = (*attr)->m_type; 160 ret = 0; 161 } 162 return (ret); 163 } 164 165 int 166 _pthread_mutexattr_destroy(pthread_mutexattr_t *attr) 167 { 168 int ret; 169 if (attr == NULL || *attr == NULL) { 170 ret = EINVAL; 171 } else { 172 free(*attr); 173 *attr = NULL; 174 ret = 0; 175 } 176 return (ret); 177 } 178 179 int 180 _pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr, 181 int *pshared) 182 { 183 184 if (attr == NULL || *attr == NULL) 185 return (EINVAL); 186 *pshared = (*attr)->m_pshared; 187 return (0); 188 } 189 190 int 191 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared) 192 { 193 194 if (attr == NULL || *attr == NULL || 195 (pshared != PTHREAD_PROCESS_PRIVATE && 196 pshared != PTHREAD_PROCESS_SHARED)) 197 return (EINVAL); 198 (*attr)->m_pshared = pshared; 199 return (0); 200 } 201 202 int 203 _pthread_mutexattr_getprotocol(pthread_mutexattr_t *mattr, int *protocol) 204 { 205 int ret = 0; 206 207 if (mattr == NULL || *mattr == NULL) 208 ret = EINVAL; 209 else 210 *protocol = (*mattr)->m_protocol; 211 212 return (ret); 213 } 214 215 int 216 _pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol) 217 { 218 int ret = 0; 219 220 if (mattr == NULL || *mattr == NULL || 221 protocol < PTHREAD_PRIO_NONE || protocol > PTHREAD_PRIO_PROTECT) 222 ret = EINVAL; 223 else { 224 (*mattr)->m_protocol = protocol; 225 (*mattr)->m_ceiling = THR_MAX_RR_PRIORITY; 226 } 227 return (ret); 228 } 229 230 int 231 _pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling) 232 { 233 int ret = 0; 234 235 if (mattr == NULL || *mattr == NULL) 236 ret = EINVAL; 237 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 238 ret = EINVAL; 239 else 240 *prioceiling = (*mattr)->m_ceiling; 241 242 return (ret); 243 } 244 245 int 246 _pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) 247 { 248 int ret = 0; 249 250 if (mattr == NULL || *mattr == NULL) 251 ret = EINVAL; 252 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 253 ret = EINVAL; 254 else 255 (*mattr)->m_ceiling = prioceiling; 256 257 return (ret); 258 } 259 260 int 261 _pthread_mutexattr_getrobust(pthread_mutexattr_t *mattr, int *robust) 262 { 263 int ret; 264 265 if (mattr == NULL || *mattr == NULL) { 266 ret = EINVAL; 267 } else { 268 ret = 0; 269 *robust = (*mattr)->m_robust; 270 } 271 return (ret); 272 } 273 274 int 275 _pthread_mutexattr_setrobust(pthread_mutexattr_t *mattr, int robust) 276 { 277 int ret; 278 279 if (mattr == NULL || *mattr == NULL) { 280 ret = EINVAL; 281 } else if (robust != PTHREAD_MUTEX_STALLED && 282 robust != PTHREAD_MUTEX_ROBUST) { 283 ret = EINVAL; 284 } else { 285 ret = 0; 286 (*mattr)->m_robust = robust; 287 } 288 return (ret); 289 } 290 291