upload http
[bottlenecks.git] / rubbos / app / httpd-2.0.64 / srclib / apr / threadproc / beos / threadpriv.c
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
19 static struct beos_key key_table[BEOS_MAX_DATAKEYS];
20 static struct beos_private_data *beos_data[BEOS_MAX_DATAKEYS];
21 static sem_id lock;
22
23 APR_DECLARE(apr_status_t) apr_threadkey_private_create(apr_threadkey_t **key,
24                                        void (*dest)(void *), apr_pool_t *pool)
25 {
26     (*key) = (apr_threadkey_t *)apr_palloc(pool, sizeof(apr_threadkey_t));
27     if ((*key) == NULL) {
28         return APR_ENOMEM;
29     }
30
31     (*key)->pool = pool;
32         
33         acquire_sem(lock);
34         for ((*key)->key=0; (*key)->key < BEOS_MAX_DATAKEYS; (*key)->key++){
35                 if (key_table[(*key)->key].assigned == 0){
36                         key_table[(*key)->key].assigned = 1;
37                         key_table[(*key)->key].destructor = dest;
38                         release_sem(lock);
39                         return APR_SUCCESS;
40                 }                               
41
42         }
43         release_sem(lock);
44     return APR_ENOMEM;
45 }
46
47 APR_DECLARE(apr_status_t) apr_threadkey_private_get(void **new, apr_threadkey_t *key)
48 {
49         thread_id tid;
50         int i, index=0;
51         tid = find_thread(NULL);
52         for (i=0;i<BEOS_MAX_DATAKEYS;i++){
53                 if (beos_data[i]->data){
54                         /* it's been used */
55                         if (beos_data[i]->td == tid){
56                                 index = i;
57                         }
58                 }
59         }
60         if (index == 0){
61                 /* no storage for thread so we can't get anything... */
62                 return APR_ENOMEM;
63         }
64
65         if ((key->key < BEOS_MAX_DATAKEYS) && (key_table)){
66                 acquire_sem(key_table[key->key].lock);
67                 if (key_table[key->key].count){
68                         (*new) = (void*)beos_data[index]->data[key->key];
69                 } else {
70                         (*new) = NULL;
71                 }
72                 release_sem(key_table[key->key].lock);
73         } else {
74                 (*new) = NULL;
75         }
76         return APR_SUCCESS;
77 }
78
79 APR_DECLARE(apr_status_t) apr_threadkey_private_set(void *priv, apr_threadkey_t *key)
80 {
81         thread_id tid;
82         int i,index = 0, ret = 0;
83
84         tid = find_thread(NULL);        
85         for (i=0; i < BEOS_MAX_DATAKEYS; i++){
86                 if (beos_data[i]->data){
87                         if (beos_data[i]->td == tid){index = i;}
88                 }
89         }
90         if (index==0){
91                 /* not yet been allocated */
92                 for (i=0; i< BEOS_MAX_DATAKEYS; i++){
93                         if (! beos_data[i]->data){
94                                 /* we'll take this one... */
95                                 index = i;
96                                 beos_data[i]->data = (const void **)malloc(sizeof(void *) * BEOS_MAX_DATAKEYS);
97                                 memset((void *)beos_data[i]->data, 0, sizeof(void *) * BEOS_MAX_DATAKEYS);
98                                 beos_data[i]->count = (int)malloc(sizeof(int));
99                                 beos_data[i]->td = (thread_id)malloc(sizeof(thread_id));
100                                 beos_data[i]->td = tid;
101                         }
102                 }
103         }
104         if (index == 0){
105                 /* we're out of luck.. */
106                 return APR_ENOMEM;
107         }
108         if ((key->key < BEOS_MAX_DATAKEYS) && (key_table)){
109                 acquire_sem(key_table[key->key].lock);
110                 if (key_table[key->key].count){
111                         if (beos_data[index]->data[key->key] == NULL){
112                                 if (priv != NULL){
113                                         beos_data[index]->count++;
114                                         key_table[key->key].count++;
115                                 }
116                         } else {
117                                 if (priv == NULL){
118                                         beos_data[index]->count--;
119                                         key_table[key->key].count--;
120                                 }
121                         }
122                         beos_data[index]->data[key->key] = priv;
123                         ret = 1;
124                 } else {
125                         ret = 0;
126                 }
127                 release_sem(key_table[key->key].lock);
128         }
129         if (ret)
130         return APR_SUCCESS;
131         return APR_ENOMEM;
132 }
133
134 APR_DECLARE(apr_status_t) apr_threadkey_private_delete(apr_threadkey_t *key)
135 {
136         if (key->key < BEOS_MAX_DATAKEYS){
137                 acquire_sem(key_table[key->key].lock);
138                 if (key_table[key->key].count == 1){
139                         key_table[key->key].destructor = NULL;
140                         key_table[key->key].count = 0;
141                 }
142                 release_sem(key_table[key->key].lock);
143         } else {
144                 return APR_ENOMEM;
145         }
146         return APR_SUCCESS;
147 }
148
149 APR_DECLARE(apr_status_t) apr_threadkey_data_get(void **data, const char *key,
150                                                  apr_threadkey_t *threadkey)
151 {
152     return apr_pool_userdata_get(data, key, threadkey->pool);
153 }
154
155 APR_DECLARE(apr_status_t) apr_threadkey_data_set(void *data, const char *key,
156                                                  apr_status_t (*cleanup) (void *),
157                                                  apr_threadkey_t *threadkey)
158 {
159     return apr_pool_userdata_set(data, key, cleanup, threadkey->pool);
160 }
161
162 APR_DECLARE(apr_status_t) apr_os_threadkey_get(apr_os_threadkey_t *thekey, apr_threadkey_t *key)
163 {
164     *thekey = key->key;
165     return APR_SUCCESS;
166 }
167
168 APR_DECLARE(apr_status_t) apr_os_threadkey_put(apr_threadkey_t **key, 
169                                                apr_os_threadkey_t *thekey, apr_pool_t *pool)
170 {
171     if (pool == NULL) {
172         return APR_ENOPOOL;
173     }
174     if ((*key) == NULL) {
175         (*key) = (apr_threadkey_t *)apr_pcalloc(pool, sizeof(apr_threadkey_t));
176         (*key)->pool = pool;
177     }
178     (*key)->key = *thekey;
179     return APR_SUCCESS;
180 }