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rocksdb/table/plain_table_factory.cc

93 lines
3.4 KiB

// 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.
#ifndef ROCKSDB_LITE
#include "table/plain_table_factory.h"
#include <memory>
#include <stdint.h>
#include "db/dbformat.h"
#include "table/plain_table_builder.h"
#include "table/plain_table_reader.h"
#include "port/port.h"
namespace rocksdb {
Status PlainTableFactory::NewTableReader(const ImmutableCFOptions& ioptions,
const EnvOptions& env_options,
const InternalKeyComparator& icomp,
std::unique_ptr<RandomAccessFile>&& file,
uint64_t file_size,
std::unique_ptr<TableReader>* table) const {
return PlainTableReader::Open(ioptions, env_options, table_options_,
icomp, std::move(file), file_size, table);
}
TableBuilder* PlainTableFactory::NewTableBuilder(
const TableBuilderOptions& table_builder_options,
WritableFile* file) const {
// Ignore the skip_filters flag. PlainTable format is optimized for small
// in-memory dbs. The skip_filters optimization is not useful for plain
// tables
//
return new PlainTableBuilder(table_builder_options.ioptions,
table_builder_options.int_tbl_prop_collector_factories,
table_options_, file, 6);
}
std::string PlainTableFactory::GetPrintableTableOptions() const {
std::string ret;
ret.reserve(20000);
const int kBufferSize = 200;
char buffer[kBufferSize];
snprintf(buffer, kBufferSize, " user_key_len: %u\n",
table_options_.user_key_len);
ret.append(buffer);
snprintf(buffer, kBufferSize, " bloom_bits_per_key: %d\n",
table_options_.bloom_bits_per_key);
ret.append(buffer);
snprintf(buffer, kBufferSize, " hash_table_ratio: %lf\n",
table_options_.hash_table_ratio);
ret.append(buffer);
snprintf(buffer, kBufferSize, " index_sparseness: %" ROCKSDB_PRIszt "\n",
table_options_.index_sparseness);
ret.append(buffer);
snprintf(buffer, kBufferSize, " huge_page_tlb_size: %" ROCKSDB_PRIszt "\n",
table_options_.huge_page_tlb_size);
ret.append(buffer);
snprintf(buffer, kBufferSize, " encoding_type: %d\n",
table_options_.encoding_type);
ret.append(buffer);
snprintf(buffer, kBufferSize, " full_scan_mode: %d\n",
table_options_.full_scan_mode);
ret.append(buffer);
snprintf(buffer, kBufferSize, " store_index_in_file: %d\n",
table_options_.store_index_in_file);
ret.append(buffer);
return ret;
}
const PlainTableOptions& PlainTableFactory::GetTableOptions() const {
return table_options_;
}
extern TableFactory* NewPlainTableFactory(const PlainTableOptions& options) {
return new PlainTableFactory(options);
}
const std::string PlainTablePropertyNames::kPrefixExtractorName =
"rocksdb.prefix.extractor.name";
const std::string PlainTablePropertyNames::kEncodingType =
"rocksdb.plain.table.encoding.type";
const std::string PlainTablePropertyNames::kBloomVersion =
"rocksdb.plain.table.bloom.version";
const std::string PlainTablePropertyNames::kNumBloomBlocks =
"rocksdb.plain.table.bloom.numblocks";
} // namespace rocksdb
#endif // ROCKSDB_LITE