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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 06:30:05 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 06:30:05 +0000
commita1e354165254cd9e346751e6c2ddc554feeb0e6d (patch)
tree5fd273cc604fd00efd630eb387a6f79ce102f4e3 /include/private/apr_dbm_private.h
parentInitial commit. (diff)
downloadapr-util-a1e354165254cd9e346751e6c2ddc554feeb0e6d.tar.xz
apr-util-a1e354165254cd9e346751e6c2ddc554feeb0e6d.zip
Adding upstream version 1.6.3.upstream/1.6.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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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 DBM provider tables */
+APU_MODULE_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_sdbm;
+APU_MODULE_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_gdbm;
+APU_MODULE_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_ndbm;
+APU_MODULE_DECLARE_DATA extern const apr_dbm_type_t apr_dbm_type_db;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* APR_DBM_PRIVATE_H */