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rocksdb/table/plain_table_factory.cc

94 lines
3.2 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 TableReaderOptions& table_reader_options,
unique_ptr<RandomAccessFileReader>&& file, uint64_t file_size,
unique_ptr<TableReader>* table) const {
return PlainTableReader::Open(
table_reader_options.ioptions, table_reader_options.env_options,
table_reader_options.internal_comparator, std::move(file), file_size,
table, bloom_bits_per_key_, hash_table_ratio_, index_sparseness_,
huge_page_tlb_size_, full_scan_mode_);
}
TableBuilder* PlainTableFactory::NewTableBuilder(
const TableBuilderOptions& table_builder_options, uint32_t column_family_id,
WritableFileWriter* 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, column_family_id,
file, user_key_len_, encoding_type_, index_sparseness_,
bloom_bits_per_key_, 6, huge_page_tlb_size_, hash_table_ratio_,
store_index_in_file_);
}
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",
user_key_len_);
ret.append(buffer);
snprintf(buffer, kBufferSize, " bloom_bits_per_key: %d\n",
bloom_bits_per_key_);
ret.append(buffer);
snprintf(buffer, kBufferSize, " hash_table_ratio: %lf\n",
hash_table_ratio_);
ret.append(buffer);
snprintf(buffer, kBufferSize, " index_sparseness: %" ROCKSDB_PRIszt "\n",
index_sparseness_);
ret.append(buffer);
snprintf(buffer, kBufferSize, " huge_page_tlb_size: %" ROCKSDB_PRIszt "\n",
huge_page_tlb_size_);
ret.append(buffer);
snprintf(buffer, kBufferSize, " encoding_type: %d\n",
encoding_type_);
ret.append(buffer);
snprintf(buffer, kBufferSize, " full_scan_mode: %d\n",
full_scan_mode_);
ret.append(buffer);
snprintf(buffer, kBufferSize, " store_index_in_file: %d\n",
store_index_in_file_);
ret.append(buffer);
return ret;
}
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