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9e285d4238
Summary: Created a CompatibleOptions object that can be used as a LevelDB Options object and then converted to a RocksDB Options object using the ConvertOptions() method. Test Plan: Unit test included in diff. Reviewers: ljin Reviewed By: ljin Subscribers: sdong, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D28893
57 lines
2.1 KiB
C++
57 lines
2.1 KiB
C++
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#include "rocksdb/utilities/leveldb_options.h"
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#include "rocksdb/cache.h"
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#include "rocksdb/comparator.h"
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#include "rocksdb/env.h"
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#include "rocksdb/filter_policy.h"
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#include "rocksdb/options.h"
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#include "rocksdb/table.h"
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namespace rocksdb {
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LevelDBOptions::LevelDBOptions()
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: comparator(BytewiseComparator()),
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create_if_missing(false),
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error_if_exists(false),
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paranoid_checks(false),
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env(Env::Default()),
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info_log(nullptr),
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write_buffer_size(4 << 20),
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max_open_files(1000),
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block_cache(nullptr),
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block_size(4096),
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block_restart_interval(16),
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compression(kSnappyCompression),
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filter_policy(nullptr) {}
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Options ConvertOptions(const LevelDBOptions& leveldb_options) {
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Options options = Options();
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options.create_if_missing = leveldb_options.create_if_missing;
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options.error_if_exists = leveldb_options.error_if_exists;
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options.paranoid_checks = leveldb_options.paranoid_checks;
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options.env = leveldb_options.env;
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options.info_log.reset(leveldb_options.info_log);
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options.write_buffer_size = leveldb_options.write_buffer_size;
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options.max_open_files = leveldb_options.max_open_files;
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options.compression = leveldb_options.compression;
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BlockBasedTableOptions table_options;
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table_options.block_cache.reset(leveldb_options.block_cache);
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table_options.block_size = leveldb_options.block_size;
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table_options.block_restart_interval = leveldb_options.block_restart_interval;
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table_options.filter_policy.reset(leveldb_options.filter_policy);
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options.table_factory.reset(NewBlockBasedTableFactory(table_options));
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return options;
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}
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} // namespace rocksdb
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