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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
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
// Copyright (c) 2014, 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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#ifndef ROCKSDB_LITE
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#include "table/cuckoo_table_factory.h"
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#include "db/dbformat.h"
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#include "table/cuckoo_table_builder.h"
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#include "table/cuckoo_table_reader.h"
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namespace rocksdb {
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Status CuckooTableFactory::NewTableReader(const ImmutableCFOptions& ioptions,
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const EnvOptions& env_options, const InternalKeyComparator& icomp,
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std::unique_ptr<RandomAccessFile>&& file, uint64_t file_size,
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std::unique_ptr<TableReader>* table) const {
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std::unique_ptr<CuckooTableReader> new_reader(new CuckooTableReader(ioptions,
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std::move(file), file_size, icomp.user_comparator(), nullptr));
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Status s = new_reader->status();
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if (s.ok()) {
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*table = std::move(new_reader);
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}
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return s;
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}
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TableBuilder* CuckooTableFactory::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 CuckooTableBuilder(file, hash_table_ratio_, 64,
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max_search_depth_, internal_comparator.user_comparator(),
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cuckoo_block_size_, nullptr);
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}
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std::string CuckooTableFactory::GetPrintableTableOptions() const {
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std::string ret;
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ret.reserve(2000);
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const int kBufferSize = 200;
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char buffer[kBufferSize];
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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, " max_search_depth: %u\n",
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max_search_depth_);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " cuckoo_block_size: %u\n",
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cuckoo_block_size_);
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ret.append(buffer);
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return ret;
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}
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TableFactory* NewCuckooTableFactory(double hash_table_ratio,
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uint32_t max_search_depth, uint32_t cuckoo_block_size) {
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return new CuckooTableFactory(
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hash_table_ratio, max_search_depth, cuckoo_block_size);
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}
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} // namespace rocksdb
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#endif // ROCKSDB_LITE
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