fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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350 lines
14 KiB
350 lines
14 KiB
// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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// 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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#include "table/plain/plain_table_factory.h"
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#include <stdint.h>
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#include <memory>
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#include "db/dbformat.h"
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#include "port/port.h"
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#include "rocksdb/convenience.h"
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#include "rocksdb/utilities/customizable_util.h"
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#include "rocksdb/utilities/object_registry.h"
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#include "rocksdb/utilities/options_type.h"
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#include "table/plain/plain_table_builder.h"
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#include "table/plain/plain_table_reader.h"
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#include "util/string_util.h"
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namespace ROCKSDB_NAMESPACE {
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#ifndef ROCKSDB_LITE
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static std::unordered_map<std::string, OptionTypeInfo> plain_table_type_info = {
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{"user_key_len",
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{offsetof(struct PlainTableOptions, user_key_len), OptionType::kUInt32T,
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OptionVerificationType::kNormal, OptionTypeFlags::kNone}},
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{"bloom_bits_per_key",
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{offsetof(struct PlainTableOptions, bloom_bits_per_key), OptionType::kInt,
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OptionVerificationType::kNormal, OptionTypeFlags::kNone}},
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{"hash_table_ratio",
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{offsetof(struct PlainTableOptions, hash_table_ratio), OptionType::kDouble,
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OptionVerificationType::kNormal, OptionTypeFlags::kNone}},
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{"index_sparseness",
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{offsetof(struct PlainTableOptions, index_sparseness), OptionType::kSizeT,
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OptionVerificationType::kNormal, OptionTypeFlags::kNone}},
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{"huge_page_tlb_size",
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{offsetof(struct PlainTableOptions, huge_page_tlb_size),
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OptionType::kSizeT, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"encoding_type",
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{offsetof(struct PlainTableOptions, encoding_type),
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OptionType::kEncodingType, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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{"full_scan_mode",
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{offsetof(struct PlainTableOptions, full_scan_mode), OptionType::kBoolean,
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OptionVerificationType::kNormal, OptionTypeFlags::kNone}},
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{"store_index_in_file",
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{offsetof(struct PlainTableOptions, store_index_in_file),
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OptionType::kBoolean, OptionVerificationType::kNormal,
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OptionTypeFlags::kNone}},
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};
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PlainTableFactory::PlainTableFactory(const PlainTableOptions& options)
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: table_options_(options) {
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RegisterOptions(&table_options_, &plain_table_type_info);
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}
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Status PlainTableFactory::NewTableReader(
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const ReadOptions& /*ro*/, const TableReaderOptions& table_reader_options,
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std::unique_ptr<RandomAccessFileReader>&& file, uint64_t file_size,
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std::unique_ptr<TableReader>* table,
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bool /*prefetch_index_and_filter_in_cache*/) const {
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return PlainTableReader::Open(
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table_reader_options.ioptions, table_reader_options.env_options,
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table_reader_options.internal_comparator, std::move(file), file_size,
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table, table_options_.bloom_bits_per_key, table_options_.hash_table_ratio,
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table_options_.index_sparseness, table_options_.huge_page_tlb_size,
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table_options_.full_scan_mode, table_reader_options.immortal,
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table_reader_options.prefix_extractor.get());
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}
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TableBuilder* PlainTableFactory::NewTableBuilder(
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const TableBuilderOptions& table_builder_options,
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WritableFileWriter* file) const {
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// Ignore the skip_filters flag. PlainTable format is optimized for small
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// in-memory dbs. The skip_filters optimization is not useful for plain
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// tables
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//
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return new PlainTableBuilder(
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table_builder_options.ioptions, table_builder_options.moptions,
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table_builder_options.int_tbl_prop_collector_factories,
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table_builder_options.column_family_id,
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table_builder_options.level_at_creation, file,
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table_options_.user_key_len, table_options_.encoding_type,
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table_options_.index_sparseness, table_options_.bloom_bits_per_key,
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table_builder_options.column_family_name, 6,
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table_options_.huge_page_tlb_size, table_options_.hash_table_ratio,
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table_options_.store_index_in_file, table_builder_options.db_id,
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table_builder_options.db_session_id, table_builder_options.cur_file_num);
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}
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std::string PlainTableFactory::GetPrintableOptions() 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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table_options_.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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table_options_.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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table_options_.hash_table_ratio);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " index_sparseness: %" ROCKSDB_PRIszt "\n",
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table_options_.index_sparseness);
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ret.append(buffer);
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snprintf(buffer, kBufferSize, " huge_page_tlb_size: %" ROCKSDB_PRIszt "\n",
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table_options_.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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table_options_.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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table_options_.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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table_options_.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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Status GetPlainTableOptionsFromString(const PlainTableOptions& table_options,
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const std::string& opts_str,
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PlainTableOptions* new_table_options) {
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ConfigOptions config_options;
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config_options.input_strings_escaped = false;
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config_options.ignore_unknown_options = false;
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config_options.invoke_prepare_options = false;
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return GetPlainTableOptionsFromString(config_options, table_options, opts_str,
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new_table_options);
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}
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Status GetPlainTableOptionsFromString(const ConfigOptions& config_options,
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const PlainTableOptions& table_options,
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const std::string& opts_str,
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PlainTableOptions* new_table_options) {
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std::unordered_map<std::string, std::string> opts_map;
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Status s = StringToMap(opts_str, &opts_map);
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if (!s.ok()) {
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return s;
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}
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s = GetPlainTableOptionsFromMap(config_options, table_options, opts_map,
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new_table_options);
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// Translate any errors (NotFound, NotSupported, to InvalidArgument
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if (s.ok() || s.IsInvalidArgument()) {
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return s;
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} else {
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return Status::InvalidArgument(s.getState());
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}
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}
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#endif // ROCKSDB_LITE
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#ifndef ROCKSDB_LITE
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static int RegisterBuiltinMemTableRepFactory(ObjectLibrary& library,
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const std::string& /*arg*/) {
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// The MemTableRepFactory built-in classes will be either a class
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// (VectorRepFactory) or a nickname (vector), followed optionally by ":#",
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// where # is the "size" of the factory.
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auto AsPattern = [](const std::string& name, const std::string& alt) {
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auto pattern = ObjectLibrary::PatternEntry(name, true);
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pattern.AnotherName(alt);
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pattern.AddNumber(":");
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return pattern;
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};
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library.AddFactory<MemTableRepFactory>(
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AsPattern(VectorRepFactory::kClassName(), VectorRepFactory::kNickName()),
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[](const std::string& uri, std::unique_ptr<MemTableRepFactory>* guard,
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std::string* /*errmsg*/) {
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auto colon = uri.find(":");
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if (colon != std::string::npos) {
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size_t count = ParseSizeT(uri.substr(colon + 1));
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guard->reset(new VectorRepFactory(count));
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} else {
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guard->reset(new VectorRepFactory());
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}
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return guard->get();
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});
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library.AddFactory<MemTableRepFactory>(
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AsPattern(SkipListFactory::kClassName(), SkipListFactory::kNickName()),
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[](const std::string& uri, std::unique_ptr<MemTableRepFactory>* guard,
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std::string* /*errmsg*/) {
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auto colon = uri.find(":");
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if (colon != std::string::npos) {
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size_t lookahead = ParseSizeT(uri.substr(colon + 1));
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guard->reset(new SkipListFactory(lookahead));
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} else {
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guard->reset(new SkipListFactory());
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}
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return guard->get();
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});
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library.AddFactory<MemTableRepFactory>(
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AsPattern("HashLinkListRepFactory", "hash_linkedlist"),
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[](const std::string& uri, std::unique_ptr<MemTableRepFactory>* guard,
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std::string* /*errmsg*/) {
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// Expecting format: hash_linkedlist:<hash_bucket_count>
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auto colon = uri.find(":");
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if (colon != std::string::npos) {
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size_t hash_bucket_count = ParseSizeT(uri.substr(colon + 1));
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guard->reset(NewHashLinkListRepFactory(hash_bucket_count));
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} else {
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guard->reset(NewHashLinkListRepFactory());
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}
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return guard->get();
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});
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library.AddFactory<MemTableRepFactory>(
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AsPattern("HashSkipListRepFactory", "prefix_hash"),
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[](const std::string& uri, std::unique_ptr<MemTableRepFactory>* guard,
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std::string* /*errmsg*/) {
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// Expecting format: prefix_hash:<hash_bucket_count>
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auto colon = uri.find(":");
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if (colon != std::string::npos) {
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size_t hash_bucket_count = ParseSizeT(uri.substr(colon + 1));
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guard->reset(NewHashSkipListRepFactory(hash_bucket_count));
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} else {
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guard->reset(NewHashSkipListRepFactory());
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}
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return guard->get();
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});
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library.AddFactory<MemTableRepFactory>(
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"cuckoo",
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[](const std::string& /*uri*/,
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std::unique_ptr<MemTableRepFactory>* /*guard*/, std::string* errmsg) {
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*errmsg = "cuckoo hash memtable is not supported anymore.";
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return nullptr;
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});
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size_t num_types;
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return static_cast<int>(library.GetFactoryCount(&num_types));
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}
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#endif // ROCKSDB_LITE
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Status GetMemTableRepFactoryFromString(
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const std::string& opts_str, std::unique_ptr<MemTableRepFactory>* result) {
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ConfigOptions config_options;
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config_options.ignore_unsupported_options = false;
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config_options.ignore_unknown_options = false;
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return MemTableRepFactory::CreateFromString(config_options, opts_str, result);
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}
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Status MemTableRepFactory::CreateFromString(
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const ConfigOptions& config_options, const std::string& value,
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std::unique_ptr<MemTableRepFactory>* result) {
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#ifndef ROCKSDB_LITE
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static std::once_flag once;
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std::call_once(once, [&]() {
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RegisterBuiltinMemTableRepFactory(*(ObjectLibrary::Default().get()), "");
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});
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#endif // ROCKSDB_LITE
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std::string id;
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std::unordered_map<std::string, std::string> opt_map;
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Status status = Customizable::GetOptionsMap(config_options, result->get(),
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value, &id, &opt_map);
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if (!status.ok()) { // GetOptionsMap failed
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return status;
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} else if (value.empty()) {
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// No Id and no options. Clear the object
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result->reset();
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return Status::OK();
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} else if (id.empty()) { // We have no Id but have options. Not good
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return Status::NotSupported("Cannot reset object ", id);
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} else {
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#ifndef ROCKSDB_LITE
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status = NewUniqueObject<MemTableRepFactory>(config_options, id, opt_map,
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result);
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#else
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// To make it possible to configure the memtables in LITE mode, the ID
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// is of the form <name>:<size>, where name is the name of the class and
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// <size> is the length of the object (e.g. skip_list:10).
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std::vector<std::string> opts_list = StringSplit(id, ':');
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if (opts_list.empty() || opts_list.size() > 2 || !opt_map.empty()) {
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status = Status::InvalidArgument("Can't parse memtable_factory option ",
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value);
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} else if (opts_list[0] == SkipListFactory::kNickName() ||
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opts_list[0] == SkipListFactory::kClassName()) {
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// Expecting format
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// skip_list:<lookahead>
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if (opts_list.size() == 2) {
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size_t lookahead = ParseSizeT(opts_list[1]);
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result->reset(new SkipListFactory(lookahead));
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} else {
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result->reset(new SkipListFactory());
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}
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} else if (!config_options.ignore_unsupported_options) {
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status = Status::NotSupported("Cannot load object in LITE mode ", id);
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}
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#endif // ROCKSDB_LITE
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}
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return status;
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}
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Status MemTableRepFactory::CreateFromString(
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const ConfigOptions& config_options, const std::string& value,
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std::shared_ptr<MemTableRepFactory>* result) {
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std::unique_ptr<MemTableRepFactory> factory;
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Status s = CreateFromString(config_options, value, &factory);
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if (factory && s.ok()) {
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result->reset(factory.release());
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}
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return s;
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}
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#ifndef ROCKSDB_LITE
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Status GetPlainTableOptionsFromMap(
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const PlainTableOptions& table_options,
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const std::unordered_map<std::string, std::string>& opts_map,
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PlainTableOptions* new_table_options, bool input_strings_escaped,
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bool ignore_unknown_options) {
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ConfigOptions config_options;
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config_options.input_strings_escaped = input_strings_escaped;
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config_options.ignore_unknown_options = ignore_unknown_options;
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return GetPlainTableOptionsFromMap(config_options, table_options, opts_map,
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new_table_options);
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}
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Status GetPlainTableOptionsFromMap(
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const ConfigOptions& config_options, const PlainTableOptions& table_options,
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const std::unordered_map<std::string, std::string>& opts_map,
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PlainTableOptions* new_table_options) {
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assert(new_table_options);
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PlainTableFactory ptf(table_options);
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Status s = ptf.ConfigureFromMap(config_options, opts_map);
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if (s.ok()) {
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*new_table_options = *(ptf.GetOptions<PlainTableOptions>());
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} else {
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// Restore "new_options" to the default "base_options".
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*new_table_options = table_options;
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}
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return s;
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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::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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#endif // ROCKSDB_LITE
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} // namespace ROCKSDB_NAMESPACE
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