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
apr_threadattr_create(apr_threadattr_t ** new,apr_pool_t * pool)20 APR_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
apr_threadattr_detach_set(apr_threadattr_t * attr,apr_int32_t on)35 APR_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
apr_threadattr_detach_get(apr_threadattr_t * attr)45 APR_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
apr_threadattr_stacksize_set(apr_threadattr_t * attr,apr_size_t stacksize)53 APR_DECLARE(apr_status_t) apr_threadattr_stacksize_set(apr_threadattr_t *attr,
54 apr_size_t stacksize)
55 {
56 return APR_ENOTIMPL;
57 }
58
apr_threadattr_guardsize_set(apr_threadattr_t * attr,apr_size_t size)59 APR_DECLARE(apr_status_t) apr_threadattr_guardsize_set(apr_threadattr_t *attr,
60 apr_size_t size)
61 {
62 return APR_ENOTIMPL;
63 }
64
dummy_worker(void * opaque)65 static void *dummy_worker(void *opaque)
66 {
67 apr_thread_t *thd = (apr_thread_t*)opaque;
68 return thd->func(thd, thd->data);
69 }
70
apr_thread_create(apr_thread_t ** new,apr_threadattr_t * attr,apr_thread_start_t func,void * data,apr_pool_t * pool)71 APR_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
apr_os_thread_current(void)112 APR_DECLARE(apr_os_thread_t) apr_os_thread_current(void)
113 {
114 return find_thread(NULL);
115 }
116
apr_os_thread_equal(apr_os_thread_t tid1,apr_os_thread_t tid2)117 int apr_os_thread_equal(apr_os_thread_t tid1, apr_os_thread_t tid2)
118 {
119 return tid1 == tid2;
120 }
121
apr_thread_exit(apr_thread_t * thd,apr_status_t retval)122 APR_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
apr_thread_join(apr_status_t * retval,apr_thread_t * thd)131 APR_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
apr_thread_detach(apr_thread_t * thd)151 APR_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
apr_thread_yield()161 void apr_thread_yield()
162 {
163 }
164
apr_thread_data_get(void ** data,const char * key,apr_thread_t * thread)165 APR_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
apr_thread_data_set(void * data,const char * key,apr_status_t (* cleanup)(void *),apr_thread_t * thread)170 APR_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
apr_os_thread_get(apr_os_thread_t ** thethd,apr_thread_t * thd)177 APR_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
apr_os_thread_put(apr_thread_t ** thd,apr_os_thread_t * thethd,apr_pool_t * pool)183 APR_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
thread_once_cleanup(void * vcontrol)197 static 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
apr_thread_once_init(apr_thread_once_t ** control,apr_pool_t * p)209 APR_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
apr_thread_once(apr_thread_once_t * control,void (* func)(void))225 APR_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
237 APR_POOL_IMPLEMENT_ACCESSOR(thread)
238