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/* miscellaneous-table.c : operations on the `miscellaneous' table
*
* ====================================================================
* 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.
* ====================================================================
*/
#include <string.h>
#include <assert.h>
#include "bdb_compat.h"
#include "svn_pools.h"
#include "dbt.h"
#include "../err.h"
#include "../fs.h"
#include "../trail.h"
#include "../../libsvn_fs/fs-loader.h"
#include "bdb-err.h"
#include "miscellaneous-table.h"
#include "private/svn_fs_util.h"
int
svn_fs_bdb__open_miscellaneous_table(DB **miscellaneous_p,
DB_ENV *env,
svn_boolean_t create)
{
const u_int32_t open_flags = (create ? (DB_CREATE | DB_EXCL) : 0);
DB *miscellaneous;
int error;
BDB_ERR(svn_fs_bdb__check_version());
BDB_ERR(db_create(&miscellaneous, env, 0));
error = (miscellaneous->open)(SVN_BDB_OPEN_PARAMS(miscellaneous, NULL),
"miscellaneous", 0, DB_BTREE,
open_flags, 0666);
/* Create the table if it doesn't yet exist. This is a form of
automagical repository upgrading. */
if (error == ENOENT && (! create))
{
BDB_ERR(miscellaneous->close(miscellaneous, 0));
return svn_fs_bdb__open_miscellaneous_table(miscellaneous_p, env, TRUE);
}
BDB_ERR(error);
/* If we're creating the table from scratch (not upgrading), record the
upgrade rev as 0. */
if (create)
{
DBT key, value;
BDB_ERR(miscellaneous->put
(miscellaneous, 0,
svn_fs_base__str_to_dbt
(&key, SVN_FS_BASE__MISC_FORWARD_DELTA_UPGRADE),
svn_fs_base__str_to_dbt(&value, "0"), 0));
}
*miscellaneous_p = miscellaneous;
return 0;
}
svn_error_t *
svn_fs_bdb__miscellaneous_set(svn_fs_t *fs,
const char *key_str,
const char *val,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
DBT key, value;
svn_fs_base__str_to_dbt(&key, key_str);
if (val == NULL)
{
svn_fs_base__trail_debug(trail, "miscellaneous", "del");
return BDB_WRAP(fs, "deleting record from 'miscellaneous' table",
bfd->miscellaneous->del(bfd->miscellaneous,
trail->db_txn, &key, 0));
}
else
{
svn_fs_base__str_to_dbt(&value, val);
svn_fs_base__trail_debug(trail, "miscellaneous", "add");
return BDB_WRAP(fs, "storing miscellaneous record",
bfd->miscellaneous->put(bfd->miscellaneous,
trail->db_txn,
&key, &value, 0));
}
}
svn_error_t *
svn_fs_bdb__miscellaneous_get(const char **val,
svn_fs_t *fs,
const char *key_str,
trail_t *trail,
apr_pool_t *pool)
{
base_fs_data_t *bfd = fs->fsap_data;
DBT key, value;
int db_err;
*val = NULL;
svn_fs_base__trail_debug(trail, "miscellaneous", "get");
db_err = bfd->miscellaneous->get(bfd->miscellaneous, trail->db_txn,
svn_fs_base__str_to_dbt(&key, key_str),
svn_fs_base__result_dbt(&value), 0);
svn_fs_base__track_dbt(&value, pool);
if (db_err != DB_NOTFOUND)
{
SVN_ERR(BDB_WRAP(fs, "fetching miscellaneous record", db_err));
*val = apr_pstrmemdup(pool, value.data, value.size);
}
return SVN_NO_ERROR;
}
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