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.h"
18 #include "apr_portable.h"
19 #include "apr_arch_threadproc.h"
20 
21 #if APR_HAS_THREADS
22 
23 #if APR_HAVE_PTHREAD_H
24 APR_DECLARE(apr_status_t) apr_threadkey_private_create(apr_threadkey_t **key,
25                                                        void (*dest)(void *),
26                                                        apr_pool_t *pool)
27 {
28     (*key) = (apr_threadkey_t *)apr_pcalloc(pool, sizeof(apr_threadkey_t));
29 
30     if ((*key) == NULL) {
31         return APR_ENOMEM;
32     }
33 
34     (*key)->pool = pool;
35 
36     return pthread_key_create(&(*key)->key, dest);
37 
38 }
39 
40 APR_DECLARE(apr_status_t) apr_threadkey_private_get(void **new,
41                                                     apr_threadkey_t *key)
42 {
43 #ifdef PTHREAD_GETSPECIFIC_TAKES_TWO_ARGS
44     if (pthread_getspecific(key->key,new))
45        *new = NULL;
46 #else
47     (*new) = pthread_getspecific(key->key);
48 #endif
49     return APR_SUCCESS;
50 }
51 
52 APR_DECLARE(apr_status_t) apr_threadkey_private_set(void *priv,
53                                                     apr_threadkey_t *key)
54 {
55     apr_status_t stat;
56 
57     if ((stat = pthread_setspecific(key->key, priv)) == 0) {
58         return APR_SUCCESS;
59     }
60     else {
61         return stat;
62     }
63 }
64 
65 APR_DECLARE(apr_status_t) apr_threadkey_private_delete(apr_threadkey_t *key)
66 {
67 #ifdef HAVE_PTHREAD_KEY_DELETE
68     apr_status_t stat;
69 
70     if ((stat = pthread_key_delete(key->key)) == 0) {
71         return APR_SUCCESS;
72     }
73 
74     return stat;
75 #else
76     return APR_ENOTIMPL;
77 #endif
78 }
79 
80 APR_DECLARE(apr_status_t) apr_threadkey_data_get(void **data, const char *key,
81                                                  apr_threadkey_t *threadkey)
82 {
83     return apr_pool_userdata_get(data, key, threadkey->pool);
84 }
85 
86 APR_DECLARE(apr_status_t) apr_threadkey_data_set(void *data, const char *key,
87                               apr_status_t (*cleanup)(void *),
88                               apr_threadkey_t *threadkey)
89 {
90     return apr_pool_userdata_set(data, key, cleanup, threadkey->pool);
91 }
92 
93 APR_DECLARE(apr_status_t) apr_os_threadkey_get(apr_os_threadkey_t *thekey,
94                                                apr_threadkey_t *key)
95 {
96     *thekey = key->key;
97     return APR_SUCCESS;
98 }
99 
100 APR_DECLARE(apr_status_t) apr_os_threadkey_put(apr_threadkey_t **key,
101                                                apr_os_threadkey_t *thekey,
102                                                apr_pool_t *pool)
103 {
104     if (pool == NULL) {
105         return APR_ENOPOOL;
106     }
107 
108     if ((*key) == NULL) {
109         (*key) = (apr_threadkey_t *)apr_pcalloc(pool, sizeof(apr_threadkey_t));
110         (*key)->pool = pool;
111     }
112 
113     (*key)->key = *thekey;
114     return APR_SUCCESS;
115 }
116 #endif /* APR_HAVE_PTHREAD_H */
117 #endif /* APR_HAS_THREADS */
118 
119 #if !APR_HAS_THREADS
120 
121 /* avoid warning for no prototype */
122 APR_DECLARE(apr_status_t) apr_os_threadkey_get(void);
123 
124 APR_DECLARE(apr_status_t) apr_os_threadkey_get(void)
125 {
126     return APR_ENOTIMPL;
127 }
128 
129 #endif
130