mirror of https://github.com/facebook/rocksdb.git
101 lines
3.9 KiB
C++
101 lines
3.9 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
|
|
#include "table/cuckoo/cuckoo_table_factory.h"
|
|
|
|
#include "db/dbformat.h"
|
|
#include "options/configurable_helper.h"
|
|
#include "rocksdb/utilities/options_type.h"
|
|
#include "table/cuckoo/cuckoo_table_builder.h"
|
|
#include "table/cuckoo/cuckoo_table_reader.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
Status CuckooTableFactory::NewTableReader(
|
|
const ReadOptions& /*ro*/, 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 {
|
|
std::unique_ptr<CuckooTableReader> new_reader(new CuckooTableReader(
|
|
table_reader_options.ioptions, std::move(file), file_size,
|
|
table_reader_options.internal_comparator.user_comparator(), nullptr));
|
|
Status s = new_reader->status();
|
|
if (s.ok()) {
|
|
*table = std::move(new_reader);
|
|
}
|
|
return s;
|
|
}
|
|
|
|
TableBuilder* CuckooTableFactory::NewTableBuilder(
|
|
const TableBuilderOptions& table_builder_options,
|
|
WritableFileWriter* file) const {
|
|
// TODO: change builder to take the option struct
|
|
return new CuckooTableBuilder(
|
|
file, table_options_.hash_table_ratio, 64,
|
|
table_options_.max_search_depth,
|
|
table_builder_options.internal_comparator.user_comparator(),
|
|
table_options_.cuckoo_block_size, table_options_.use_module_hash,
|
|
table_options_.identity_as_first_hash, nullptr /* get_slice_hash */,
|
|
table_builder_options.column_family_id,
|
|
table_builder_options.column_family_name, table_builder_options.db_id,
|
|
table_builder_options.db_session_id, table_builder_options.cur_file_num);
|
|
}
|
|
|
|
std::string CuckooTableFactory::GetPrintableOptions() const {
|
|
std::string ret;
|
|
ret.reserve(2000);
|
|
const int kBufferSize = 200;
|
|
char buffer[kBufferSize];
|
|
|
|
snprintf(buffer, kBufferSize, " hash_table_ratio: %lf\n",
|
|
table_options_.hash_table_ratio);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " max_search_depth: %u\n",
|
|
table_options_.max_search_depth);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " cuckoo_block_size: %u\n",
|
|
table_options_.cuckoo_block_size);
|
|
ret.append(buffer);
|
|
snprintf(buffer, kBufferSize, " identity_as_first_hash: %d\n",
|
|
table_options_.identity_as_first_hash);
|
|
ret.append(buffer);
|
|
return ret;
|
|
}
|
|
|
|
static std::unordered_map<std::string, OptionTypeInfo> cuckoo_table_type_info =
|
|
{
|
|
{"hash_table_ratio",
|
|
{offsetof(struct CuckooTableOptions, hash_table_ratio),
|
|
OptionType::kDouble, OptionVerificationType::kNormal,
|
|
OptionTypeFlags::kNone}},
|
|
{"max_search_depth",
|
|
{offsetof(struct CuckooTableOptions, max_search_depth),
|
|
OptionType::kUInt32T, OptionVerificationType::kNormal,
|
|
OptionTypeFlags::kNone}},
|
|
{"cuckoo_block_size",
|
|
{offsetof(struct CuckooTableOptions, cuckoo_block_size),
|
|
OptionType::kUInt32T, OptionVerificationType::kNormal,
|
|
OptionTypeFlags::kNone}},
|
|
{"identity_as_first_hash",
|
|
{offsetof(struct CuckooTableOptions, identity_as_first_hash),
|
|
OptionType::kBoolean, OptionVerificationType::kNormal,
|
|
OptionTypeFlags::kNone}},
|
|
{"use_module_hash",
|
|
{offsetof(struct CuckooTableOptions, use_module_hash),
|
|
OptionType::kBoolean, OptionVerificationType::kNormal,
|
|
OptionTypeFlags::kNone}},
|
|
};
|
|
|
|
CuckooTableFactory::CuckooTableFactory(const CuckooTableOptions& table_options)
|
|
: table_options_(table_options) {
|
|
RegisterOptions(&table_options_, &cuckoo_table_type_info);
|
|
}
|
|
|
|
TableFactory* NewCuckooTableFactory(const CuckooTableOptions& table_options) {
|
|
return new CuckooTableFactory(table_options);
|
|
}
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|