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apr_hash.h

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00001 /* Copyright 2000-2004 The Apache Software Foundation
00002  *
00003  * Licensed under the Apache License, Version 2.0 (the "License");
00004  * you may not use this file except in compliance with the License.
00005  * You may obtain a copy of the License at
00006  *
00007  *     http://www.apache.org/licenses/LICENSE-2.0
00008  *
00009  * Unless required by applicable law or agreed to in writing, software
00010  * distributed under the License is distributed on an "AS IS" BASIS,
00011  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00012  * See the License for the specific language governing permissions and
00013  * limitations under the License.
00014  */
00015 
00016 #ifndef APR_HASH_H
00017 #define APR_HASH_H
00018 
00024 #include "apr_pools.h"
00025 
00026 #ifdef __cplusplus
00027 extern "C" {
00028 #endif
00029 
00046 #define APR_HASH_KEY_STRING     (-1)
00047 
00051 typedef struct apr_hash_t apr_hash_t;
00052 
00056 typedef struct apr_hash_index_t apr_hash_index_t;
00057 
00063 APR_DECLARE(apr_hash_t *) apr_hash_make(apr_pool_t *pool);
00064 
00072 APR_DECLARE(apr_hash_t *) apr_hash_copy(apr_pool_t *pool,
00073                                         const apr_hash_t *h);
00074 
00083 APR_DECLARE(void) apr_hash_set(apr_hash_t *ht, const void *key,
00084                                apr_ssize_t klen, const void *val);
00085 
00093 APR_DECLARE(void *) apr_hash_get(apr_hash_t *ht, const void *key,
00094                                  apr_ssize_t klen);
00095 
00124 APR_DECLARE(apr_hash_index_t *) apr_hash_first(apr_pool_t *p, apr_hash_t *ht);
00125 
00132 APR_DECLARE(apr_hash_index_t *) apr_hash_next(apr_hash_index_t *hi);
00133 
00143 APR_DECLARE(void) apr_hash_this(apr_hash_index_t *hi, const void **key, 
00144                                 apr_ssize_t *klen, void **val);
00145 
00151 APR_DECLARE(unsigned int) apr_hash_count(apr_hash_t *ht);
00152 
00161 APR_DECLARE(apr_hash_t *) apr_hash_overlay(apr_pool_t *p,
00162                                            const apr_hash_t *overlay, 
00163                                            const apr_hash_t *base);
00164 
00178 APR_DECLARE(apr_hash_t *) apr_hash_merge(apr_pool_t *p,
00179                                          const apr_hash_t *h1,
00180                                          const apr_hash_t *h2,
00181                                          void * (*merger)(apr_pool_t *p,
00182                                                      const void *key,
00183                                                      apr_ssize_t klen,
00184                                                      const void *h1_val,
00185                                                      const void *h2_val,
00186                                                      const void *data),
00187                                          const void *data);
00188 
00192 APR_POOL_DECLARE_ACCESSOR(hash);
00193 
00196 #ifdef __cplusplus
00197 }
00198 #endif
00199 
00200 #endif  /* !APR_HASH_H */

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