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rocksdb/include/rocksdb/convenience.h

63 lines
2.3 KiB

// Copyright (c) 2014, 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.
#pragma once
#include <unordered_map>
#include <string>
#include "rocksdb/options.h"
#include "rocksdb/table.h"
namespace rocksdb {
#ifndef ROCKSDB_LITE
// Take a map of option name and option value, apply them into the
// base_options, and return the new options as a result
Status GetColumnFamilyOptionsFromMap(
const ColumnFamilyOptions& base_options,
const std::unordered_map<std::string, std::string>& opts_map,
ColumnFamilyOptions* new_options);
Status GetDBOptionsFromMap(
const DBOptions& base_options,
const std::unordered_map<std::string, std::string>& opts_map,
DBOptions* new_options);
Status GetBlockBasedTableOptionsFromMap(
const BlockBasedTableOptions& table_options,
const std::unordered_map<std::string, std::string>& opts_map,
BlockBasedTableOptions* new_table_options);
// Take a string representation of option names and values, apply them into the
// base_options, and return the new options as a result. The string has the
// following format:
// "write_buffer_size=1024;max_write_buffer_number=2"
// Nested options config is also possible. For example, you can define
// BlockBasedTableOptions as part of the string for block-based table factory:
// "write_buffer_size=1024;block_based_table_factory={block_size=4k};"
// "max_write_buffer_num=2"
Status GetColumnFamilyOptionsFromString(
const ColumnFamilyOptions& base_options,
const std::string& opts_str,
ColumnFamilyOptions* new_options);
Status GetDBOptionsFromString(
const DBOptions& base_options,
const std::string& opts_str,
DBOptions* new_options);
Status GetBlockBasedTableOptionsFromString(
const BlockBasedTableOptions& table_options,
const std::string& opts_str,
BlockBasedTableOptions* new_table_options);
Status GetOptionsFromString(const Options& base_options,
const std::string& opts_str, Options* new_options);
/// Request stopping background work, if wait is true wait until it's done
void CancelAllBackgroundWork(DB* db, bool wait = false);
#endif // ROCKSDB_LITE
} // namespace rocksdb