533cda90ce
Summary: Expose a simple function to convert CompressionType to it's corresponding option string This is for a diff @yoshinorim is working on for MyRocks Test Plan: unittest Reviewers: yhchiang, andrewkr, sdong Reviewed By: sdong Subscribers: andrewkr, dhruba, yoshinorim Differential Revision: https://reviews.facebook.net/D58215
113 lines
4.4 KiB
C++
113 lines
4.4 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#pragma once
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#include <string>
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#include <unordered_map>
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#include <vector>
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#include "rocksdb/db.h"
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#include "rocksdb/options.h"
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#include "rocksdb/table.h"
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namespace rocksdb {
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#ifndef ROCKSDB_LITE
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// Take a map of option name and option value, apply them into the
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// base_options, and return the new options as a result.
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//
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// If input_strings_escaped is set to true, then each escaped characters
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// prefixed by '\' in the values of the opts_map will be further
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// converted back to the raw string before assigning to the associated
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// options.
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Status GetColumnFamilyOptionsFromMap(
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const ColumnFamilyOptions& base_options,
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const std::unordered_map<std::string, std::string>& opts_map,
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ColumnFamilyOptions* new_options, bool input_strings_escaped = false);
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// Take a map of option name and option value, apply them into the
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// base_options, and return the new options as a result.
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//
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// If input_strings_escaped is set to true, then each escaped characters
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// prefixed by '\' in the values of the opts_map will be further
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// converted back to the raw string before assigning to the associated
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// options.
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Status GetDBOptionsFromMap(
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const DBOptions& base_options,
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const std::unordered_map<std::string, std::string>& opts_map,
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DBOptions* new_options, bool input_strings_escaped = false);
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Status GetBlockBasedTableOptionsFromMap(
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const BlockBasedTableOptions& table_options,
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const std::unordered_map<std::string, std::string>& opts_map,
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BlockBasedTableOptions* new_table_options,
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bool input_strings_escaped = false);
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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,
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bool input_strings_escaped = false);
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// Take a string representation of option names and values, apply them into the
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// base_options, and return the new options as a result. The string has the
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// following format:
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// "write_buffer_size=1024;max_write_buffer_number=2"
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// Nested options config is also possible. For example, you can define
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// BlockBasedTableOptions as part of the string for block-based table factory:
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// "write_buffer_size=1024;block_based_table_factory={block_size=4k};"
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// "max_write_buffer_num=2"
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Status GetColumnFamilyOptionsFromString(
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const ColumnFamilyOptions& base_options,
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const std::string& opts_str,
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ColumnFamilyOptions* new_options);
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Status GetDBOptionsFromString(
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const DBOptions& base_options,
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const std::string& opts_str,
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DBOptions* new_options);
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Status GetStringFromDBOptions(std::string* opts_str,
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const DBOptions& db_options,
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const std::string& delimiter = "; ");
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Status GetStringFromColumnFamilyOptions(std::string* opts_str,
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const ColumnFamilyOptions& db_options,
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const std::string& delimiter = "; ");
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Status GetStringFromCompressionType(std::string* compression_str,
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CompressionType compression_type);
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Status GetBlockBasedTableOptionsFromString(
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const BlockBasedTableOptions& table_options,
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const std::string& opts_str,
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BlockBasedTableOptions* new_table_options);
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Status GetPlainTableOptionsFromString(
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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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Status GetMemTableRepFactoryFromString(
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const std::string& opts_str,
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std::unique_ptr<MemTableRepFactory>* new_mem_factory);
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Status GetOptionsFromString(const Options& base_options,
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const std::string& opts_str, Options* new_options);
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// Request stopping background work, if wait is true wait until it's done
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void CancelAllBackgroundWork(DB* db, bool wait = false);
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// Delete files which are entirely in the given range
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// Could leave some keys in the range which are in files which are not
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// entirely in the range.
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// Snapshots before the delete might not see the data in the given range.
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Status DeleteFilesInRange(DB* db, ColumnFamilyHandle* column_family,
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const Slice* begin, const Slice* end);
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#endif // ROCKSDB_LITE
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} // namespace rocksdb
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