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/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef APR_DBM_PRIVATE_H
#define APR_DBM_PRIVATE_H
#include "apr.h"
#include "apr_errno.h"
#include "apr_pools.h"
#include "apr_dbm.h"
#include "apr_file_io.h"
#include "apu.h"
/* ### for now, include the DBM selection; this will go away once we start
### building and linking all of the DBMs at once. */
#include "apu_select_dbm.h"
#ifdef __cplusplus
extern "C" {
#endif
/** @internal */
/**
* Most DBM libraries take a POSIX mode for creating files. Don't trust
* the mode_t type, some platforms may not support it, int is safe.
*/
APU_DECLARE(int) apr_posix_perms2mode(apr_fileperms_t perm);
/**
* Structure to describe the operations of the DBM
*/
typedef struct {
/** The name of the DBM Type */
const char *name;
/** Open the DBM */
apr_status_t (*open)(apr_dbm_t **pdb, const char *pathname,
apr_int32_t mode, apr_fileperms_t perm,
apr_pool_t *pool);
/** Close the DBM */
void (*close)(apr_dbm_t *dbm);
/** Fetch a dbm record value by key */
apr_status_t (*fetch)(apr_dbm_t *dbm, apr_datum_t key,
apr_datum_t * pvalue);
/** Store a dbm record value by key */
apr_status_t (*store)(apr_dbm_t *dbm, apr_datum_t key, apr_datum_t value);
/** Delete a dbm record value by key */
apr_status_t (*del)(apr_dbm_t *dbm, apr_datum_t key);
/** Search for a key within the dbm */
int (*exists)(apr_dbm_t *dbm, apr_datum_t key);
/** Retrieve the first record key from a dbm */
apr_status_t (*firstkey)(apr_dbm_t *dbm, apr_datum_t * pkey);
/** Retrieve the next record key from a dbm */
apr_status_t (*nextkey)(apr_dbm_t *dbm, apr_datum_t * pkey);
/** Proactively toss any memory associated with the apr_datum_t. */
void (*freedatum)(apr_dbm_t *dbm, apr_datum_t data);
/** Get the names that the DBM will use for a given pathname. */
void (*getusednames)(apr_pool_t *pool,
const char *pathname,
const char **used1,
const char **used2);
} apr_dbm_type_t;
/**
* The actual DBM
*/
struct apr_dbm_t
{
/** Associated pool */
apr_pool_t *pool;
/** pointer to DB Implementation Specific data */
void *file;
/** Current integer error code */
int errcode;
/** Current string error code */
const char *errmsg;
/** the type of DBM */
const apr_dbm_type_t *type;
};
/* Declare all of the builtin DBM providers */
APU_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_sdbm;
#if !APU_DSO_BUILD
APU_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_gdbm;
APU_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_ndbm;
APU_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_db;
#endif
#ifdef __cplusplus
}
#endif
#endif /* APR_DBM_PRIVATE_H */
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