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apr_dbm_private.h
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 #ifndef APR_DBM_PRIVATE_H
18 #define APR_DBM_PRIVATE_H
19 
20 #include "apr.h"
21 #include "apr_errno.h"
22 #include "apr_pools.h"
23 #include "apr_dbm.h"
24 #include "apr_file_io.h"
25 
26 #include "apu.h"
27 
28 /* ### for now, include the DBM selection; this will go away once we start
29  ### building and linking all of the DBMs at once. */
30 #include "apu_select_dbm.h"
31 
32 #ifdef __cplusplus
33 extern "C" {
34 #endif
35 
42 APU_DECLARE(int) apr_posix_perms2mode(apr_fileperms_t perm);
43 
47 typedef struct {
49  const char *name;
50 
52  apr_status_t (*open)(apr_dbm_t **pdb, const char *pathname,
53  apr_int32_t mode, apr_fileperms_t perm,
54  apr_pool_t *pool);
55 
57  void (*close)(apr_dbm_t *dbm);
58 
60  apr_status_t (*fetch)(apr_dbm_t *dbm, apr_datum_t key,
61  apr_datum_t * pvalue);
62 
64  apr_status_t (*store)(apr_dbm_t *dbm, apr_datum_t key, apr_datum_t value);
65 
67  apr_status_t (*del)(apr_dbm_t *dbm, apr_datum_t key);
68 
70  int (*exists)(apr_dbm_t *dbm, apr_datum_t key);
71 
73  apr_status_t (*firstkey)(apr_dbm_t *dbm, apr_datum_t * pkey);
74 
76  apr_status_t (*nextkey)(apr_dbm_t *dbm, apr_datum_t * pkey);
77 
79  void (*freedatum)(apr_dbm_t *dbm, apr_datum_t data);
80 
82  void (*getusednames)(apr_pool_t *pool,
83  const char *pathname,
84  const char **used1,
85  const char **used2);
86 
88 
89 
93 struct apr_dbm_t
94 {
96  apr_pool_t *pool;
97 
99  void *file;
100 
102  int errcode;
104  const char *errmsg;
105 
108 };
109 
110 
111 /* Declare all of the DBM provider tables */
112 APU_MODULE_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_sdbm;
113 APU_MODULE_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_gdbm;
114 APU_MODULE_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_ndbm;
115 APU_MODULE_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_db;
116 
117 #ifdef __cplusplus
118 }
119 #endif
120 
121 #endif /* APR_DBM_PRIVATE_H */