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adaptive_table_factory.h
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adaptive_table_factory.h
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// 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.
#pragma once
#ifndef ROCKSDB_LITE
#include <string>
#include "rocksdb/options.h"
#include "rocksdb/table.h"
namespace rocksdb {
struct EnvOptions;
using std::unique_ptr;
class Status;
class RandomAccessFile;
class WritableFile;
class Table;
class TableBuilder;
class AdaptiveTableFactory : public TableFactory {
public:
~AdaptiveTableFactory() {}
explicit AdaptiveTableFactory(
std::shared_ptr<TableFactory> table_factory_to_write,
std::shared_ptr<TableFactory> block_based_table_factory,
std::shared_ptr<TableFactory> plain_table_factory,
std::shared_ptr<TableFactory> cuckoo_table_factory);
const char* Name() const override { return "AdaptiveTableFactory"; }
Status NewTableReader(
const ImmutableCFOptions& ioptions, const EnvOptions& env_options,
const InternalKeyComparator& internal_comparator,
unique_ptr<RandomAccessFile>&& file, uint64_t file_size,
unique_ptr<TableReader>* table) const override;
TableBuilder* NewTableBuilder(const ImmutableCFOptions& ioptions,
const InternalKeyComparator& icomparator,
WritableFile* file,
const CompressionType compression_type,
const CompressionOptions& compression_opts,
const bool skip_filters) const override;
// Sanitizes the specified DB Options.
Status SanitizeOptions(const DBOptions& db_opts,
const ColumnFamilyOptions& cf_opts) const override {
if (db_opts.allow_mmap_reads == false) {
return Status::NotSupported(
"AdaptiveTable with allow_mmap_reads == false is not supported.");
}
return Status::OK();
}
std::string GetPrintableTableOptions() const override;
private:
std::shared_ptr<TableFactory> table_factory_to_write_;
std::shared_ptr<TableFactory> block_based_table_factory_;
std::shared_ptr<TableFactory> plain_table_factory_;
std::shared_ptr<TableFactory> cuckoo_table_factory_;
};
} // namespace rocksdb
#endif // ROCKSDB_LITE