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 pattr = __malloc(sizeof(struct __pthread_mutexattr_s)); 49 if (pattr == NULL) { 50 ret = ENOMEM; 51 } else { 52 memcpy(pattr, &_pthread_mutexattr_default, 53 sizeof(struct __pthread_mutexattr_s)); 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(const pthread_mutexattr_t * __restrict attr, 105 int * __restrict type) 106 { 107 int ret; 108 109 if (attr == NULL || *attr == NULL || (*attr)->m_type >= 110 PTHREAD_MUTEX_TYPE_MAX) { 111 ret = EINVAL; 112 } else { 113 *type = (*attr)->m_type; 114 ret = 0; 115 } 116 return (ret); 117 } 118 119 int 120 _pthread_mutexattr_destroy(pthread_mutexattr_t *attr) 121 { 122 int ret; 123 if (attr == NULL || *attr == NULL) { 124 ret = EINVAL; 125 } else { 126 __free(*attr); 127 *attr = NULL; 128 ret = 0; 129 } 130 return (ret); 131 } 132 133 int 134 _pthread_mutexattr_getpshared(const pthread_mutexattr_t * __restrict attr, 135 int * __restrict pshared) 136 { 137 138 if (attr == NULL || *attr == NULL) 139 return (EINVAL); 140 *pshared = PTHREAD_PROCESS_PRIVATE; 141 return (0); 142 } 143 144 int 145 _pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared) 146 { 147 148 if (attr == NULL || *attr == NULL) 149 return (EINVAL); 150 151 /* Only PTHREAD_PROCESS_PRIVATE is supported. */ 152 if (pshared != PTHREAD_PROCESS_PRIVATE) 153 return (EINVAL); 154 155 return (0); 156 } 157 158 int 159 _pthread_mutexattr_getprotocol(const pthread_mutexattr_t * __restrict mattr, 160 int * __restrict protocol) 161 { 162 int ret = 0; 163 164 if ((mattr == NULL) || (*mattr == NULL)) 165 ret = EINVAL; 166 else 167 *protocol = (*mattr)->m_protocol; 168 169 return (ret); 170 } 171 172 int 173 _pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol) 174 { 175 int ret = 0; 176 177 if ((mattr == NULL) || (*mattr == NULL) || 178 (protocol < PTHREAD_PRIO_NONE) || (protocol > PTHREAD_PRIO_PROTECT)) 179 ret = EINVAL; 180 else { 181 (*mattr)->m_protocol = protocol; 182 (*mattr)->m_ceiling = THR_MUTEX_CEIL_PRIORITY; 183 } 184 return (ret); 185 } 186 187 int 188 _pthread_mutexattr_getprioceiling(const pthread_mutexattr_t * __restrict mattr, 189 int * __restrict prioceiling) 190 { 191 int ret = 0; 192 193 if ((mattr == NULL) || (*mattr == NULL)) 194 ret = EINVAL; 195 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 196 ret = EINVAL; 197 else 198 *prioceiling = (*mattr)->m_ceiling; 199 200 return (ret); 201 } 202 203 int 204 _pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling) 205 { 206 int ret = 0; 207 208 if ((mattr == NULL) || (*mattr == NULL)) 209 ret = EINVAL; 210 else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT) 211 ret = EINVAL; 212 else 213 (*mattr)->m_ceiling = prioceiling; 214 215 return (ret); 216 } 217 218 __strong_reference(_pthread_mutexattr_init, pthread_mutexattr_init); 219 __strong_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np); 220 __strong_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np); 221 __strong_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype); 222 __strong_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype); 223 __strong_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy); 224 __strong_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared); 225 __strong_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared); 226 __strong_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol); 227 __strong_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol); 228 __strong_reference(_pthread_mutexattr_getprioceiling, pthread_mutexattr_getprioceiling); 229 __strong_reference(_pthread_mutexattr_setprioceiling, pthread_mutexattr_setprioceiling); 230