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, pthread_mutexattr_getprioceiling); 84 __weak_reference(_pthread_mutexattr_setprioceiling, pthread_mutexattr_setprioceiling); 85 86 int 87 _pthread_mutexattr_init(pthread_mutexattr_t *attr) 88 { 89 int ret; 90 pthread_mutexattr_t pattr; 91 92 if ((pattr = (pthread_mutexattr_t) 93 malloc(sizeof(struct pthread_mutex_attr))) == NULL) { 94 ret = ENOMEM; 95 } else { 96 memcpy(pattr, &_pthread_mutexattr_default, 97 sizeof(struct pthread_mutex_attr)); 98 *attr = pattr; 99 ret = 0; 100 } 101 return (ret); 102 } 103 104 int 105 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) 106 { 107 int ret; 108 if (attr == NULL || *attr == NULL) { 109 errno = EINVAL; 110 ret = -1; 111 } else { 112 (*attr)->m_type = kind; 113 ret = 0; 114 } 115 return(ret); 116 } 117 118 int 119 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr) 120 { 121 int ret; 122 if (attr == NULL) { 123 errno = EINVAL; 124 ret = -1; 125 } else { 126 ret = attr->m_type; 127 } 128 return(ret); 129 } 130 131 int 132 _pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type) 133 { 134 int ret; 135 if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) { 136 ret = EINVAL; 137 } else { 138 (*attr)->m_type = type; 139 ret = 0; 140 } 141 return(ret); 142 } 143 144 int 145 _pthread_mutexattr_gettype(pthread_mutexattr_t *attr, int *type) 146 { 147 int ret; 148 149 if (attr == NULL || *attr == NULL || (*attr)->m_type >= 150 PTHREAD_MUTEX_TYPE_MAX) { 151 ret = EINVAL; 152 } else { 153 *type = (*attr)->m_type; 154 ret = 0; 155 } 156 return ret; 157 } 158 159 int 160 _pthread_mutexattr_destroy(pthread_mutexattr_t *attr) 161 { 162 int ret; 163 if (attr == NULL || *attr == NULL) { 164 ret = EINVAL; 165 } else { 166 free(*attr); 167 *attr = NULL; 168 ret = 0; 169 } 170 return(ret); 171 } 172 173 int 174 _pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr, 175 int *pshared) 176 { 177 178 if (attr == NULL || *attr == NULL) 179 return (EINVAL); 180 *pshared = (*attr)->m_pshared; 181 return (0); 182 } 183 184 int 185 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared) 186 { 187 188 if (attr == NULL || *attr == NULL || 189 (pshared != PTHREAD_PROCESS_PRIVATE && 190 pshared != PTHREAD_PROCESS_SHARED)) 191 return (EINVAL); 192 (*attr)->m_pshared = pshared; 193 return (0); 194 } 195 196 int 197 _pthread_mutexattr_getprotocol(pthread_mutexattr_t *mattr, int *protocol) 198 { 199 int ret = 0; 200 201 if ((mattr == NULL) || (*mattr == NULL)) 202 ret = EINVAL; 203 else 204 *protocol = (*mattr)->m_protocol; 205 206 return(ret); 207 } 208 209 int 210 _pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol) 211 { 212 int ret = 0; 213 214 if ((mattr == NULL) || (*mattr == NULL) || 215 (protocol < PTHREAD_PRIO_NONE) || (protocol > PTHREAD_PRIO_PROTECT)) 216 ret = EINVAL; 217 else { 218 (*mattr)->m_protocol = protocol; 219 (*mattr)->m_ceiling = THR_MAX_RR_PRIORITY; 220 } 221 return(ret); 222 } 223 224 int 225 _pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling) 226 { 227 int ret = 0; 228 229 if ((mattr == NULL) || (*mattr == NULL)) 230 ret = EINVAL; 231 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 232 ret = EINVAL; 233 else 234 *prioceiling = (*mattr)->m_ceiling; 235 236 return(ret); 237 } 238 239 int 240 _pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) 241 { 242 int ret = 0; 243 244 if ((mattr == NULL) || (*mattr == NULL)) 245 ret = EINVAL; 246 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 247 ret = EINVAL; 248 else 249 (*mattr)->m_ceiling = prioceiling; 250 251 return(ret); 252 } 253 254