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https://github.com/facebook/rocksdb.git
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5665e5e285
Summary: As a preparation to support updating some options dynamically, I'd like to first introduce ImmutableOptions, which is a subset of Options that cannot be changed during the course of a DB lifetime without restart. ColumnFamily will keep both Options and ImmutableOptions. Any component below ColumnFamily should only take ImmutableOptions in their constructor. Other options should be taken from APIs, which will be allowed to adjust dynamically. I am yet to make changes to memtable and other related classes to take ImmutableOptions in their ctor. That can be done in a seprate diff as this one is already pretty big. Test Plan: make all check Reviewers: yhchiang, igor, sdong Reviewed By: sdong Subscribers: leveldb, dhruba Differential Revision: https://reviews.facebook.net/D22545
91 lines
3.3 KiB
C++
91 lines
3.3 KiB
C++
// 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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#ifndef ROCKSDB_LITE
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#include "table/plain_table_factory.h"
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#include <memory>
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#include <stdint.h>
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#include "db/dbformat.h"
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#include "table/plain_table_builder.h"
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#include "table/plain_table_reader.h"
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#include "port/port.h"
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namespace rocksdb {
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Status PlainTableFactory::NewTableReader(const ImmutableCFOptions& ioptions,
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const EnvOptions& env_options,
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const InternalKeyComparator& icomp,
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unique_ptr<RandomAccessFile>&& file,
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uint64_t file_size,
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unique_ptr<TableReader>* table) const {
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return PlainTableReader::Open(ioptions, env_options, icomp, std::move(file),
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file_size, table, bloom_bits_per_key_,
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hash_table_ratio_, index_sparseness_,
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huge_page_tlb_size_, full_scan_mode_);
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}
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TableBuilder* PlainTableFactory::NewTableBuilder(
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const ImmutableCFOptions& ioptions,
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const InternalKeyComparator& internal_comparator,
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WritableFile* file, const CompressionType,
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const CompressionOptions&) const {
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return new PlainTableBuilder(ioptions, file, user_key_len_, encoding_type_,
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index_sparseness_, bloom_bits_per_key_, 6,
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huge_page_tlb_size_, hash_table_ratio_,
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store_index_in_file_);
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}
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std::string PlainTableFactory::GetPrintableTableOptions() const {
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std::string ret;
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ret.reserve(20000);
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const int kBufferSize = 200;
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char buffer[kBufferSize];
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snprintf(buffer, kBufferSize, " user_key_len: %u\n",
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user_key_len_);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " bloom_bits_per_key: %d\n",
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bloom_bits_per_key_);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " hash_table_ratio: %lf\n",
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hash_table_ratio_);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " index_sparseness: %zd\n",
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index_sparseness_);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " huge_page_tlb_size: %zd\n",
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huge_page_tlb_size_);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " encoding_type: %d\n",
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encoding_type_);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " full_scan_mode: %d\n",
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full_scan_mode_);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " store_index_in_file: %d\n",
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store_index_in_file_);
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ret.append(buffer);
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return ret;
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}
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extern TableFactory* NewPlainTableFactory(const PlainTableOptions& options) {
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return new PlainTableFactory(options);
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}
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const std::string PlainTablePropertyNames::kPrefixExtractorName =
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"rocksdb.prefix.extractor.name";
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const std::string PlainTablePropertyNames::kEncodingType =
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"rocksdb.plain.table.encoding.type";
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const std::string PlainTablePropertyNames::kBloomVersion =
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"rocksdb.plain.table.bloom.version";
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const std::string PlainTablePropertyNames::kNumBloomBlocks =
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"rocksdb.plain.table.bloom.numblocks";
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} // namespace rocksdb
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#endif // ROCKSDB_LITE
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