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rocksdb/table/block_based_table_factory.cc

79 lines
2.8 KiB

// Copyright (c) 2013, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "table/block_based_table_factory.h"
#include <memory>
#include <string>
#include <stdint.h>
#include "rocksdb/flush_block_policy.h"
#include "rocksdb/cache.h"
#include "table/block_based_table_builder.h"
#include "table/block_based_table_reader.h"
#include "port/port.h"
namespace rocksdb {
BlockBasedTableFactory::BlockBasedTableFactory(
const BlockBasedTableOptions& table_options)
: table_options_(table_options) {
if (table_options_.flush_block_policy_factory == nullptr) {
table_options_.flush_block_policy_factory.reset(
new FlushBlockBySizePolicyFactory());
}
if (table_options_.no_block_cache) {
table_options_.block_cache.reset();
} else if (table_options_.block_cache == nullptr) {
table_options_.block_cache = NewLRUCache(8 << 20);
}
if (table_options_.block_size_deviation < 0 ||
table_options_.block_size_deviation > 100) {
table_options_.block_size_deviation = 0;
}
if (table_options_.filter_policy) {
auto* p = new InternalFilterPolicy(table_options_.filter_policy);
table_options_.filter_policy.reset(p);
}
}
Status BlockBasedTableFactory::NewTableReader(
const Options& options, const EnvOptions& soptions,
const InternalKeyComparator& internal_comparator,
unique_ptr<RandomAccessFile>&& file, uint64_t file_size,
unique_ptr<TableReader>* table_reader) const {
return BlockBasedTable::Open(options, soptions, table_options_,
internal_comparator, std::move(file), file_size,
table_reader);
}
TableBuilder* BlockBasedTableFactory::NewTableBuilder(
const Options& options, const InternalKeyComparator& internal_comparator,
WritableFile* file, CompressionType compression_type) const {
auto table_builder = new BlockBasedTableBuilder(
options, table_options_, internal_comparator, file, compression_type);
return table_builder;
}
TableFactory* NewBlockBasedTableFactory(
const BlockBasedTableOptions& table_options) {
return new BlockBasedTableFactory(table_options);
}
const std::string BlockBasedTablePropertyNames::kIndexType =
"rocksdb.block.based.table.index.type";
const std::string kHashIndexPrefixesBlock = "rocksdb.hashindex.prefixes";
const std::string kHashIndexPrefixesMetadataBlock =
"rocksdb.hashindex.metadata";
} // namespace rocksdb