56589ab81f
We are having more and more options to specify for this table so it makes sense to have a TableOptions for future extension.
70 lines
2.2 KiB
C++
70 lines
2.2 KiB
C++
// Copyright (c) 2013, 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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#pragma once
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#include <memory>
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#include <stdint.h>
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#include "rocksdb/flush_block_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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struct Options;
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struct EnvOptions;
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using std::unique_ptr;
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class Status;
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class RandomAccessFile;
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class WritableFile;
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class Table;
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class TableBuilder;
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class BlockBasedTable;
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class BlockBasedTableBuilder;
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class BlockBasedTableFactory: public TableFactory {
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public:
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struct TableOptions {
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// @flush_block_policy_factory creates the instances of flush block policy.
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// which provides a configurable way to determine when to flush a block in
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// the block based tables. If not set, table builder will use the default
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// block flush policy, which cut blocks by block size (please refer to
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// `FlushBlockBySizePolicy`).
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std::shared_ptr<FlushBlockPolicyFactory> flush_block_policy_factory;
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};
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BlockBasedTableFactory() : BlockBasedTableFactory(TableOptions()) { }
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BlockBasedTableFactory(const TableOptions& table_options):
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table_options_(table_options) {
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}
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~BlockBasedTableFactory() {
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}
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const char* Name() const override {
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return "BlockBasedTable";
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}
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Status GetTableReader(const Options& options, const EnvOptions& soptions,
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unique_ptr<RandomAccessFile> && file,
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uint64_t file_size,
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unique_ptr<TableReader>* table_reader) const override;
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TableBuilder* GetTableBuilder(const Options& options, WritableFile* file,
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CompressionType compression_type) const
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override;
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private:
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TableOptions table_options_;
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};
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} // namespace rocksdb
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