1/* Licensed to the Apache Software Foundation (ASF) under one or more 2 * contributor license agreements. See the NOTICE file distributed with 3 * this work for additional information regarding copyright ownership. 4 * The ASF licenses this file to You under the Apache License, Version 2.0 5 * (the "License"); you may not use this file except in compliance with 6 * the License. You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "apr_arch_threadproc.h" 18#include "apr_portable.h" 19 20APR_DECLARE(apr_status_t) apr_threadattr_create(apr_threadattr_t **new, apr_pool_t *pool) 21{ 22 (*new) = (apr_threadattr_t *)apr_palloc(pool, 23 sizeof(apr_threadattr_t)); 24 25 if ((*new) == NULL) { 26 return APR_ENOMEM; 27 } 28 29 (*new)->pool = pool; 30 (*new)->attr = (int32)B_NORMAL_PRIORITY; 31 32 return APR_SUCCESS; 33} 34 35APR_DECLARE(apr_status_t) apr_threadattr_detach_set(apr_threadattr_t *attr, apr_int32_t on) 36{ 37 if (on == 1){ 38 attr->detached = 1; 39 } else { 40 attr->detached = 0; 41 } 42 return APR_SUCCESS; 43} 44 45APR_DECLARE(apr_status_t) apr_threadattr_detach_get(apr_threadattr_t *attr) 46{ 47 if (attr->detached == 1){ 48 return APR_DETACH; 49 } 50 return APR_NOTDETACH; 51} 52 53APR_DECLARE(apr_status_t) apr_threadattr_stacksize_set(apr_threadattr_t *attr, 54 apr_size_t stacksize) 55{ 56 return APR_ENOTIMPL; 57} 58 59APR_DECLARE(apr_status_t) apr_threadattr_guardsize_set(apr_threadattr_t *attr, 60 apr_size_t size) 61{ 62 return APR_ENOTIMPL; 63} 64 65static void *dummy_worker(void *opaque) 66{ 67 apr_thread_t *thd = (apr_thread_t*)opaque; 68 return thd->func(thd, thd->data); 69} 70 71APR_DECLARE(apr_status_t) apr_thread_create(apr_thread_t **new, apr_threadattr_t *attr, 72 apr_thread_start_t func, void *data, 73 apr_pool_t *pool) 74{ 75 int32 temp; 76 apr_status_t stat; 77 78 (*new) = (apr_thread_t *)apr_palloc(pool, sizeof(apr_thread_t)); 79 if ((*new) == NULL) { 80 return APR_ENOMEM; 81 } 82 83 (*new)->data = data; 84 (*new)->func = func; 85 (*new)->exitval = -1; 86 87 /* First we create the new thread...*/ 88 if (attr) 89 temp = attr->attr; 90 else 91 temp = B_NORMAL_PRIORITY; 92 93 stat = apr_pool_create(&(*new)->pool, pool); 94 if (stat != APR_SUCCESS) { 95 return stat; 96 } 97 98 (*new)->td = spawn_thread((thread_func)dummy_worker, 99 "apr thread", 100 temp, 101 (*new)); 102 103 /* Now we try to run it...*/ 104 if (resume_thread((*new)->td) == B_NO_ERROR) { 105 return APR_SUCCESS; 106 } 107 else { 108 return errno; 109 } 110} 111 112APR_DECLARE(apr_os_thread_t) apr_os_thread_current(void) 113{ 114 return find_thread(NULL); 115} 116 117int apr_os_thread_equal(apr_os_thread_t tid1, apr_os_thread_t tid2) 118{ 119 return tid1 == tid2; 120} 121 122APR_DECLARE(apr_status_t) apr_thread_exit(apr_thread_t *thd, apr_status_t retval) 123{ 124 apr_pool_destroy(thd->pool); 125 thd->exitval = retval; 126 exit_thread ((status_t)(retval)); 127 /* This will never be reached... */ 128 return APR_SUCCESS; 129} 130 131APR_DECLARE(apr_status_t) apr_thread_join(apr_status_t *retval, apr_thread_t *thd) 132{ 133 status_t rv = 0, ret; 134 ret = wait_for_thread(thd->td, &rv); 135 if (ret == B_NO_ERROR) { 136 *retval = rv; 137 return APR_SUCCESS; 138 } 139 else { 140 /* if we've missed the thread's death, did we set an exit value prior 141 * to it's demise? If we did return that. 142 */ 143 if (thd->exitval != -1) { 144 *retval = thd->exitval; 145 return APR_SUCCESS; 146 } else 147 return ret; 148 } 149} 150 151APR_DECLARE(apr_status_t) apr_thread_detach(apr_thread_t *thd) 152{ 153 if (suspend_thread(thd->td) == B_NO_ERROR){ 154 return APR_SUCCESS; 155 } 156 else { 157 return errno; 158 } 159} 160 161void apr_thread_yield() 162{ 163} 164 165APR_DECLARE(apr_status_t) apr_thread_data_get(void **data, const char *key, apr_thread_t *thread) 166{ 167 return apr_pool_userdata_get(data, key, thread->pool); 168} 169 170APR_DECLARE(apr_status_t) apr_thread_data_set(void *data, const char *key, 171 apr_status_t (*cleanup) (void *), 172 apr_thread_t *thread) 173{ 174 return apr_pool_userdata_set(data, key, cleanup, thread->pool); 175} 176 177APR_DECLARE(apr_status_t) apr_os_thread_get(apr_os_thread_t **thethd, apr_thread_t *thd) 178{ 179 *thethd = &thd->td; 180 return APR_SUCCESS; 181} 182 183APR_DECLARE(apr_status_t) apr_os_thread_put(apr_thread_t **thd, apr_os_thread_t *thethd, 184 apr_pool_t *pool) 185{ 186 if (pool == NULL) { 187 return APR_ENOPOOL; 188 } 189 if ((*thd) == NULL) { 190 (*thd) = (apr_thread_t *)apr_pcalloc(pool, sizeof(apr_thread_t)); 191 (*thd)->pool = pool; 192 } 193 (*thd)->td = *thethd; 194 return APR_SUCCESS; 195} 196 197static apr_status_t thread_once_cleanup(void *vcontrol) 198{ 199 apr_thread_once_t *control = (apr_thread_once_t *)vcontrol; 200 201 if (control->sem) { 202 release_sem(control->sem); 203 delete_sem(control->sem); 204 } 205 206 return APR_SUCCESS; 207} 208 209APR_DECLARE(apr_status_t) apr_thread_once_init(apr_thread_once_t **control, 210 apr_pool_t *p) 211{ 212 int rc; 213 *control = (apr_thread_once_t *)apr_pcalloc(p, sizeof(apr_thread_once_t)); 214 (*control)->hit = 0; /* we haven't done it yet... */ 215 rc = ((*control)->sem = create_sem(1, "thread_once")); 216 if (rc < 0) 217 return rc; 218 219 apr_pool_cleanup_register(p, control, thread_once_cleanup, apr_pool_cleanup_null); 220 return APR_SUCCESS; 221} 222 223 224 225APR_DECLARE(apr_status_t) apr_thread_once(apr_thread_once_t *control, 226 void (*func)(void)) 227{ 228 if (!control->hit) { 229 if (acquire_sem(control->sem) == B_OK) { 230 control->hit = 1; 231 func(); 232 } 233 } 234 return APR_SUCCESS; 235} 236 237APR_POOL_IMPLEMENT_ACCESSOR(thread) 238