1 /* 2 * Copyright (c) 1996 Jeffrey Hsu <hsu@freebsd.org>. 3 * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. Neither the name of the author nor the names of any co-contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 */ 31 32 #include "namespace.h" 33 #include <string.h> 34 #include <stdlib.h> 35 #include <errno.h> 36 #include <pthread.h> 37 #include <pthread_np.h> 38 #include "un-namespace.h" 39 40 #include "thr_private.h" 41 42 int 43 _pthread_mutexattr_init(pthread_mutexattr_t *attr) 44 { 45 int ret; 46 pthread_mutexattr_t pattr; 47 48 if ((pattr = (pthread_mutexattr_t) 49 malloc(sizeof(struct pthread_mutex_attr))) == NULL) { 50 ret = ENOMEM; 51 } else { 52 memcpy(pattr, &_pthread_mutexattr_default, 53 sizeof(struct pthread_mutex_attr)); 54 *attr = pattr; 55 ret = 0; 56 } 57 return (ret); 58 } 59 60 int 61 _pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind) 62 { 63 int ret; 64 if (attr == NULL || *attr == NULL) { 65 errno = EINVAL; 66 ret = -1; 67 } else { 68 (*attr)->m_type = kind; 69 ret = 0; 70 } 71 return(ret); 72 } 73 74 int 75 _pthread_mutexattr_getkind_np(pthread_mutexattr_t attr) 76 { 77 int ret; 78 79 if (attr == NULL) { 80 errno = EINVAL; 81 ret = -1; 82 } else { 83 ret = attr->m_type; 84 } 85 return (ret); 86 } 87 88 int 89 _pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type) 90 { 91 int ret; 92 93 if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) { 94 errno = EINVAL; 95 ret = -1; 96 } else { 97 (*attr)->m_type = type; 98 ret = 0; 99 } 100 return (ret); 101 } 102 103 int 104 _pthread_mutexattr_gettype(pthread_mutexattr_t *attr, int *type) 105 { 106 int ret; 107 108 if (attr == NULL || *attr == NULL || (*attr)->m_type >= 109 PTHREAD_MUTEX_TYPE_MAX) { 110 ret = EINVAL; 111 } else { 112 *type = (*attr)->m_type; 113 ret = 0; 114 } 115 return (ret); 116 } 117 118 int 119 _pthread_mutexattr_destroy(pthread_mutexattr_t *attr) 120 { 121 int ret; 122 if (attr == NULL || *attr == NULL) { 123 ret = EINVAL; 124 } else { 125 free(*attr); 126 *attr = NULL; 127 ret = 0; 128 } 129 return (ret); 130 } 131 132 int 133 _pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr, 134 int *pshared) 135 { 136 137 if (attr == NULL || *attr == NULL) 138 return (EINVAL); 139 *pshared = PTHREAD_PROCESS_PRIVATE; 140 return (0); 141 } 142 143 int 144 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared) 145 { 146 147 if (attr == NULL || *attr == NULL) 148 return (EINVAL); 149 150 /* Only PTHREAD_PROCESS_PRIVATE is supported. */ 151 if (pshared != PTHREAD_PROCESS_PRIVATE) 152 return (EINVAL); 153 154 return (0); 155 } 156 157 int 158 _pthread_mutexattr_getprotocol(pthread_mutexattr_t *mattr, int *protocol) 159 { 160 int ret = 0; 161 162 if ((mattr == NULL) || (*mattr == NULL)) 163 ret = EINVAL; 164 else 165 *protocol = (*mattr)->m_protocol; 166 167 return (ret); 168 } 169 170 int 171 _pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol) 172 { 173 int ret = 0; 174 175 if ((mattr == NULL) || (*mattr == NULL) || 176 (protocol < PTHREAD_PRIO_NONE) || (protocol > PTHREAD_PRIO_PROTECT)) 177 ret = EINVAL; 178 else { 179 (*mattr)->m_protocol = protocol; 180 (*mattr)->m_ceiling = THR_MUTEX_CEIL_PRIORITY; 181 } 182 return (ret); 183 } 184 185 int 186 _pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling) 187 { 188 int ret = 0; 189 190 if ((mattr == NULL) || (*mattr == NULL)) 191 ret = EINVAL; 192 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 193 ret = EINVAL; 194 else 195 *prioceiling = (*mattr)->m_ceiling; 196 197 return (ret); 198 } 199 200 int 201 _pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) 202 { 203 int ret = 0; 204 205 if ((mattr == NULL) || (*mattr == NULL)) 206 ret = EINVAL; 207 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 208 ret = EINVAL; 209 else 210 (*mattr)->m_ceiling = prioceiling; 211 212 return (ret); 213 } 214 215 __strong_reference(_pthread_mutexattr_init, pthread_mutexattr_init); 216 __strong_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np); 217 __strong_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np); 218 __strong_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype); 219 __strong_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype); 220 __strong_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy); 221 __strong_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared); 222 __strong_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared); 223 __strong_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol); 224 __strong_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol); 225 __strong_reference(_pthread_mutexattr_getprioceiling, pthread_mutexattr_getprioceiling); 226 __strong_reference(_pthread_mutexattr_setprioceiling, pthread_mutexattr_setprioceiling); 227