Revision a52888ed00b2b1c70d5a7b75caea863b12b47cfa authored by Vivek Nelamangala on 08 October 2015, 21:52:22 UTC, committed by Vivek Nelamangala on 08 October 2015, 21:52:22 UTC
1 parent 831101b
block_based_table_factory.cc
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
// 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.
#include "table/block_based_table_factory.h"
#include <memory>
#include <string>
#include <stdint.h>
#include "port/port.h"
#include "rocksdb/flush_block_policy.h"
#include "rocksdb/cache.h"
#include "table/block_based_table_builder.h"
#include "table/block_based_table_reader.h"
#include "table/format.h"
namespace rocksdb {
BlockBasedTableFactory::BlockBasedTableFactory(
const BlockBasedTableOptions& table_options)
: table_options_(table_options) {
if (table_options_.flush_block_policy_factory == nullptr) {
table_options_.flush_block_policy_factory.reset(
new FlushBlockBySizePolicyFactory());
}
if (table_options_.no_block_cache) {
table_options_.block_cache.reset();
} else if (table_options_.block_cache == nullptr) {
table_options_.block_cache = NewLRUCache(8 << 20);
}
if (table_options_.block_size_deviation < 0 ||
table_options_.block_size_deviation > 100) {
table_options_.block_size_deviation = 0;
}
}
Status BlockBasedTableFactory::NewTableReader(
const TableReaderOptions& table_reader_options,
unique_ptr<RandomAccessFileReader>&& file, uint64_t file_size,
unique_ptr<TableReader>* table_reader) const {
return NewTableReader(table_reader_options, std::move(file), file_size,
table_reader,
/*prefetch_index_and_filter=*/true);
}
Status BlockBasedTableFactory::NewTableReader(
const TableReaderOptions& table_reader_options,
unique_ptr<RandomAccessFileReader>&& file, uint64_t file_size,
unique_ptr<TableReader>* table_reader, const bool prefetch_enabled) const {
return BlockBasedTable::Open(
table_reader_options.ioptions, table_reader_options.env_options,
table_options_, table_reader_options.internal_comparator, std::move(file),
file_size, table_reader, prefetch_enabled);
}
TableBuilder* BlockBasedTableFactory::NewTableBuilder(
const TableBuilderOptions& table_builder_options,
WritableFileWriter* file) const {
auto table_builder = new BlockBasedTableBuilder(
table_builder_options.ioptions, table_options_,
table_builder_options.internal_comparator,
table_builder_options.int_tbl_prop_collector_factories, file,
table_builder_options.compression_type,
table_builder_options.compression_opts,
table_builder_options.skip_filters);
return table_builder;
}
Status BlockBasedTableFactory::SanitizeOptions(
const DBOptions& db_opts,
const ColumnFamilyOptions& cf_opts) const {
if (table_options_.index_type == BlockBasedTableOptions::kHashSearch &&
cf_opts.prefix_extractor == nullptr) {
return Status::InvalidArgument("Hash index is specified for block-based "
"table, but prefix_extractor is not given");
}
if (table_options_.cache_index_and_filter_blocks &&
table_options_.no_block_cache) {
return Status::InvalidArgument("Enable cache_index_and_filter_blocks, "
", but block cache is disabled");
}
if (!BlockBasedTableSupportedVersion(table_options_.format_version)) {
return Status::InvalidArgument(
"Unsupported BlockBasedTable format_version. Please check "
"include/rocksdb/table.h for more info");
}
return Status::OK();
}
std::string BlockBasedTableFactory::GetPrintableTableOptions() const {
std::string ret;
ret.reserve(20000);
const int kBufferSize = 200;
char buffer[kBufferSize];
snprintf(buffer, kBufferSize, " flush_block_policy_factory: %s (%p)\n",
table_options_.flush_block_policy_factory->Name(),
table_options_.flush_block_policy_factory.get());
ret.append(buffer);
snprintf(buffer, kBufferSize, " cache_index_and_filter_blocks: %d\n",
table_options_.cache_index_and_filter_blocks);
ret.append(buffer);
snprintf(buffer, kBufferSize, " index_type: %d\n",
table_options_.index_type);
ret.append(buffer);
snprintf(buffer, kBufferSize, " hash_index_allow_collision: %d\n",
table_options_.hash_index_allow_collision);
ret.append(buffer);
snprintf(buffer, kBufferSize, " checksum: %d\n",
table_options_.checksum);
ret.append(buffer);
snprintf(buffer, kBufferSize, " no_block_cache: %d\n",
table_options_.no_block_cache);
ret.append(buffer);
snprintf(buffer, kBufferSize, " block_cache: %p\n",
table_options_.block_cache.get());
ret.append(buffer);
if (table_options_.block_cache) {
snprintf(buffer, kBufferSize, " block_cache_size: %" ROCKSDB_PRIszt "\n",
table_options_.block_cache->GetCapacity());
ret.append(buffer);
}
snprintf(buffer, kBufferSize, " block_cache_compressed: %p\n",
table_options_.block_cache_compressed.get());
ret.append(buffer);
if (table_options_.block_cache_compressed) {
snprintf(buffer, kBufferSize,
" block_cache_compressed_size: %" ROCKSDB_PRIszt "\n",
table_options_.block_cache_compressed->GetCapacity());
ret.append(buffer);
}
snprintf(buffer, kBufferSize, " block_size: %" ROCKSDB_PRIszt "\n",
table_options_.block_size);
ret.append(buffer);
snprintf(buffer, kBufferSize, " block_size_deviation: %d\n",
table_options_.block_size_deviation);
ret.append(buffer);
snprintf(buffer, kBufferSize, " block_restart_interval: %d\n",
table_options_.block_restart_interval);
ret.append(buffer);
snprintf(buffer, kBufferSize, " filter_policy: %s\n",
table_options_.filter_policy == nullptr ?
"nullptr" : table_options_.filter_policy->Name());
ret.append(buffer);
snprintf(buffer, kBufferSize, " whole_key_filtering: %d\n",
table_options_.whole_key_filtering);
snprintf(buffer, kBufferSize, " format_version: %d\n",
table_options_.format_version);
ret.append(buffer);
return ret;
}
const BlockBasedTableOptions& BlockBasedTableFactory::GetTableOptions() const {
return table_options_;
}
TableFactory* NewBlockBasedTableFactory(
const BlockBasedTableOptions& table_options) {
return new BlockBasedTableFactory(table_options);
}
const std::string BlockBasedTablePropertyNames::kIndexType =
"rocksdb.block.based.table.index.type";
const std::string BlockBasedTablePropertyNames::kWholeKeyFiltering =
"rocksdb.block.based.table.whole.key.filtering";
const std::string BlockBasedTablePropertyNames::kPrefixFiltering =
"rocksdb.block.based.table.prefix.filtering";
const std::string kHashIndexPrefixesBlock = "rocksdb.hashindex.prefixes";
const std::string kHashIndexPrefixesMetadataBlock =
"rocksdb.hashindex.metadata";
const std::string kPropTrue = "1";
const std::string kPropFalse = "0";
} // namespace rocksdb
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