| /* lock-tokens-table.c : operations on the `lock-tokens' 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 "private/svn_skel.h" |
| |
| #include "dbt.h" |
| #include "../err.h" |
| #include "../fs.h" |
| #include "../util/fs_skels.h" |
| #include "../trail.h" |
| #include "../../libsvn_fs/fs-loader.h" |
| #include "bdb-err.h" |
| #include "lock-tokens-table.h" |
| #include "locks-table.h" |
| |
| #include "private/svn_fs_util.h" |
| |
| |
| int |
| svn_fs_bdb__open_lock_tokens_table(DB **lock_tokens_p, |
| DB_ENV *env, |
| svn_boolean_t create) |
| { |
| const u_int32_t open_flags = (create ? (DB_CREATE | DB_EXCL) : 0); |
| DB *lock_tokens; |
| int error; |
| |
| BDB_ERR(svn_fs_bdb__check_version()); |
| BDB_ERR(db_create(&lock_tokens, env, 0)); |
| error = (lock_tokens->open)(SVN_BDB_OPEN_PARAMS(lock_tokens, NULL), |
| "lock-tokens", 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(lock_tokens->close(lock_tokens, 0)); |
| return svn_fs_bdb__open_lock_tokens_table(lock_tokens_p, env, TRUE); |
| } |
| BDB_ERR(error); |
| |
| *lock_tokens_p = lock_tokens; |
| return 0; |
| } |
| |
| |
| svn_error_t * |
| svn_fs_bdb__lock_token_add(svn_fs_t *fs, |
| const char *path, |
| const char *lock_token, |
| 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, path); |
| svn_fs_base__str_to_dbt(&value, lock_token); |
| svn_fs_base__trail_debug(trail, "lock-tokens", "add"); |
| return BDB_WRAP(fs, N_("storing lock token record"), |
| bfd->lock_tokens->put(bfd->lock_tokens, trail->db_txn, |
| &key, &value, 0)); |
| } |
| |
| |
| svn_error_t * |
| svn_fs_bdb__lock_token_delete(svn_fs_t *fs, |
| const char *path, |
| trail_t *trail, |
| apr_pool_t *pool) |
| { |
| base_fs_data_t *bfd = fs->fsap_data; |
| DBT key; |
| int db_err; |
| |
| svn_fs_base__str_to_dbt(&key, path); |
| svn_fs_base__trail_debug(trail, "lock-tokens", "del"); |
| db_err = bfd->lock_tokens->del(bfd->lock_tokens, trail->db_txn, &key, 0); |
| if (db_err == DB_NOTFOUND) |
| return SVN_FS__ERR_NO_SUCH_LOCK(fs, path); |
| return BDB_WRAP(fs, N_("deleting entry from 'lock-tokens' table"), db_err); |
| } |
| |
| |
| svn_error_t * |
| svn_fs_bdb__lock_token_get(const char **lock_token_p, |
| svn_fs_t *fs, |
| const char *path, |
| trail_t *trail, |
| apr_pool_t *pool) |
| { |
| base_fs_data_t *bfd = fs->fsap_data; |
| DBT key, value; |
| svn_error_t *err; |
| svn_lock_t *lock; |
| const char *lock_token; |
| int db_err; |
| |
| svn_fs_base__trail_debug(trail, "lock-tokens", "get"); |
| db_err = bfd->lock_tokens->get(bfd->lock_tokens, trail->db_txn, |
| svn_fs_base__str_to_dbt(&key, path), |
| svn_fs_base__result_dbt(&value), |
| 0); |
| svn_fs_base__track_dbt(&value, pool); |
| |
| if (db_err == DB_NOTFOUND) |
| return SVN_FS__ERR_NO_SUCH_LOCK(fs, path); |
| SVN_ERR(BDB_WRAP(fs, N_("reading lock token"), db_err)); |
| |
| lock_token = apr_pstrmemdup(pool, value.data, value.size); |
| |
| /* Make sure the token still points to an existing, non-expired |
| lock, by doing a lookup in the `locks' table. */ |
| err = svn_fs_bdb__lock_get(&lock, fs, lock_token, trail, pool); |
| if (err && ((err->apr_err == SVN_ERR_FS_LOCK_EXPIRED) |
| || (err->apr_err == SVN_ERR_FS_BAD_LOCK_TOKEN))) |
| { |
| /* If `locks' doesn't have the lock, then we should lose it too. */ |
| svn_error_t *delete_err; |
| delete_err = svn_fs_bdb__lock_token_delete(fs, path, trail, pool); |
| if (delete_err) |
| svn_error_compose(err, delete_err); |
| return svn_error_trace(err); |
| } |
| else if (err) |
| return svn_error_trace(err); |
| |
| *lock_token_p = lock_token; |
| return SVN_NO_ERROR; |
| } |