/* 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; 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_db1; APU_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_db2; APU_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_db3; APU_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_db4; APU_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_db; #ifdef __cplusplus } #endif #endif /* APR_DBM_PRIVATE_H */
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