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// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
// 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/plain_table_factory.h"
#include <stdint.h>
#include <memory>
#include "db/dbformat.h"
#include "options/options_helper.h"
#include "port/port.h"
#include "rocksdb/convenience.h"
#include "table/plain/plain_table_builder.h"
#include "table/plain/plain_table_reader.h"
#include "util/string_util.h"
namespace ROCKSDB_NAMESPACE {
Status PlainTableFactory::NewTableReader(
const TableReaderOptions& table_reader_options,
std::unique_ptr<RandomAccessFileReader>&& file, uint64_t file_size,
std::unique_ptr<TableReader>* table,
bool /*prefetch_index_and_filter_in_cache*/) const {
return PlainTableReader::Open(
table_reader_options.ioptions, table_reader_options.env_options,
table_reader_options.internal_comparator, std::move(file), file_size,
table, table_options_.bloom_bits_per_key, table_options_.hash_table_ratio,
table_options_.index_sparseness, table_options_.huge_page_tlb_size,
table_options_.full_scan_mode, table_reader_options.immortal,
table_reader_options.prefix_extractor);
}
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.moptions,
table_builder_options.int_tbl_prop_collector_factories, column_family_id,
file, table_options_.user_key_len, table_options_.encoding_type,
table_options_.index_sparseness, table_options_.bloom_bits_per_key,
table_builder_options.column_family_name, 6,
table_options_.huge_page_tlb_size, table_options_.hash_table_ratio,
table_options_.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",
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::table_options() const {
return table_options_;
}
Status GetPlainTableOptionsFromString(const PlainTableOptions& table_options,
const std::string& opts_str,
PlainTableOptions* new_table_options) {
std::unordered_map<std::string, std::string> opts_map;
Status s = StringToMap(opts_str, &opts_map);
if (!s.ok()) {
return s;
}
return GetPlainTableOptionsFromMap(table_options, opts_map,
new_table_options);
}
Status GetMemTableRepFactoryFromString(
const std::string& opts_str,
std::unique_ptr<MemTableRepFactory>* new_mem_factory) {
std::vector<std::string> opts_list = StringSplit(opts_str, ':');
size_t len = opts_list.size();
if (opts_list.empty() || opts_list.size() > 2) {
return Status::InvalidArgument("Can't parse memtable_factory option ",
opts_str);
}
MemTableRepFactory* mem_factory = nullptr;
if (opts_list[0] == "skip_list") {
// Expecting format
// skip_list:<lookahead>
if (2 == len) {
size_t lookahead = ParseSizeT(opts_list[1]);
mem_factory = new SkipListFactory(lookahead);
} else if (1 == len) {
mem_factory = new SkipListFactory();
}
} else if (opts_list[0] == "prefix_hash") {
// Expecting format
// prfix_hash:<hash_bucket_count>
if (2 == len) {
size_t hash_bucket_count = ParseSizeT(opts_list[1]);
mem_factory = NewHashSkipListRepFactory(hash_bucket_count);
} else if (1 == len) {
mem_factory = NewHashSkipListRepFactory();
}
} else if (opts_list[0] == "hash_linkedlist") {
// Expecting format
// hash_linkedlist:<hash_bucket_count>
if (2 == len) {
size_t hash_bucket_count = ParseSizeT(opts_list[1]);
mem_factory = NewHashLinkListRepFactory(hash_bucket_count);
} else if (1 == len) {
mem_factory = NewHashLinkListRepFactory();
}
} else if (opts_list[0] == "vector") {
// Expecting format
// vector:<count>
if (2 == len) {
size_t count = ParseSizeT(opts_list[1]);
mem_factory = new VectorRepFactory(count);
} else if (1 == len) {
mem_factory = new VectorRepFactory();
}
} else if (opts_list[0] == "cuckoo") {
return Status::NotSupported(
"cuckoo hash memtable is not supported anymore.");
} else {
return Status::InvalidArgument("Unrecognized memtable_factory option ",
opts_str);
}
if (mem_factory != nullptr) {
new_mem_factory->reset(mem_factory);
}
return Status::OK();
}
std::string ParsePlainTableOptions(const std::string& name,
const std::string& org_value,
PlainTableOptions* new_options,
bool input_strings_escaped = false,
bool ignore_unknown_options = false) {
const std::string& value =
input_strings_escaped ? UnescapeOptionString(org_value) : org_value;
const auto iter = plain_table_type_info.find(name);
if (iter == plain_table_type_info.end()) {
if (ignore_unknown_options) {
return "";
} else {
return "Unrecognized option";
}
}
const auto& opt_info = iter->second;
if (opt_info.verification != OptionVerificationType::kDeprecated &&
!ParseOptionHelper(reinterpret_cast<char*>(new_options) + opt_info.offset,
opt_info.type, value)) {
return "Invalid value";
}
return "";
}
Status GetPlainTableOptionsFromMap(
const PlainTableOptions& table_options,
const std::unordered_map<std::string, std::string>& opts_map,
PlainTableOptions* new_table_options, bool input_strings_escaped,
bool /*ignore_unknown_options*/) {
assert(new_table_options);
*new_table_options = table_options;
for (const auto& o : opts_map) {
auto error_message = ParsePlainTableOptions(
o.first, o.second, new_table_options, input_strings_escaped);
if (error_message != "") {
const auto iter = plain_table_type_info.find(o.first);
if (iter == plain_table_type_info.end() ||
!input_strings_escaped || // !input_strings_escaped indicates
// the old API, where everything is
// parsable.
(iter->second.verification != OptionVerificationType::kByName &&
iter->second.verification !=
OptionVerificationType::kByNameAllowNull &&
iter->second.verification !=
OptionVerificationType::kByNameAllowFromNull &&
iter->second.verification != OptionVerificationType::kDeprecated)) {
// Restore "new_options" to the default "base_options".
*new_table_options = table_options;
return Status::InvalidArgument("Can't parse PlainTableOptions:",
o.first + " " + error_message);
}
}
}
return Status::OK();
}
extern TableFactory* NewPlainTableFactory(const PlainTableOptions& options) {
return new PlainTableFactory(options);
}
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_NAMESPACE
#endif // ROCKSDB_LITE
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