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 * $FreeBSD$ 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 "namespace.h" 63 #include <string.h> 64 #include <stdlib.h> 65 #include <errno.h> 66 #include <pthread.h> 67 #include <pthread_np.h> 68 #include "un-namespace.h" 69 70 #include "thr_private.h" 71 72 __weak_reference(_pthread_mutexattr_init, pthread_mutexattr_init); 73 __weak_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np); 74 __weak_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np); 75 __weak_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype); 76 __weak_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype); 77 __weak_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy); 78 __weak_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared); 79 __weak_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared); 80 __weak_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol); 81 __weak_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol); 82 __weak_reference(_pthread_mutexattr_getprioceiling, pthread_mutexattr_getprioceiling); 83 __weak_reference(_pthread_mutexattr_setprioceiling, pthread_mutexattr_setprioceiling); 84 85 int 86 _pthread_mutexattr_init(pthread_mutexattr_t *attr) 87 { 88 int ret; 89 pthread_mutexattr_t pattr; 90 91 if ((pattr = (pthread_mutexattr_t) 92 malloc(sizeof(struct pthread_mutex_attr))) == NULL) { 93 ret = ENOMEM; 94 } else { 95 memcpy(pattr, &_pthread_mutexattr_default, 96 sizeof(struct pthread_mutex_attr)); 97 *attr = pattr; 98 ret = 0; 99 } 100 return (ret); 101 } 102 103 int 104 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) 105 { 106 int ret; 107 if (attr == NULL || *attr == NULL) { 108 errno = EINVAL; 109 ret = -1; 110 } else { 111 (*attr)->m_type = kind; 112 ret = 0; 113 } 114 return(ret); 115 } 116 117 int 118 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr) 119 { 120 int ret; 121 if (attr == NULL) { 122 errno = EINVAL; 123 ret = -1; 124 } else { 125 ret = attr->m_type; 126 } 127 return(ret); 128 } 129 130 int 131 _pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type) 132 { 133 int ret; 134 if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) { 135 errno = EINVAL; 136 ret = -1; 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); 180 181 *pshared = PTHREAD_PROCESS_PRIVATE; 182 return (0); 183 } 184 185 int 186 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared) 187 { 188 189 if (attr == NULL || *attr == NULL) 190 return (EINVAL); 191 192 /* Only PTHREAD_PROCESS_PRIVATE is supported. */ 193 if (pshared != PTHREAD_PROCESS_PRIVATE) 194 return (EINVAL); 195 196 return (0); 197 } 198 199 int 200 _pthread_mutexattr_getprotocol(pthread_mutexattr_t *mattr, int *protocol) 201 { 202 int ret = 0; 203 204 if ((mattr == NULL) || (*mattr == NULL)) 205 ret = EINVAL; 206 else 207 *protocol = (*mattr)->m_protocol; 208 209 return(ret); 210 } 211 212 int 213 _pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol) 214 { 215 int ret = 0; 216 217 if ((mattr == NULL) || (*mattr == NULL) || 218 (protocol < PTHREAD_PRIO_NONE) || (protocol > PTHREAD_PRIO_PROTECT)) 219 ret = EINVAL; 220 else { 221 (*mattr)->m_protocol = protocol; 222 (*mattr)->m_ceiling = THR_MAX_RR_PRIORITY; 223 } 224 return(ret); 225 } 226 227 int 228 _pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling) 229 { 230 int ret = 0; 231 232 if ((mattr == NULL) || (*mattr == NULL)) 233 ret = EINVAL; 234 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 235 ret = EINVAL; 236 else 237 *prioceiling = (*mattr)->m_ceiling; 238 239 return(ret); 240 } 241 242 int 243 _pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) 244 { 245 int ret = 0; 246 247 if ((mattr == NULL) || (*mattr == NULL)) 248 ret = EINVAL; 249 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 250 ret = EINVAL; 251 else 252 (*mattr)->m_ceiling = prioceiling; 253 254 return(ret); 255 } 256 257