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5665e5e285
Summary: As a preparation to support updating some options dynamically, I'd like to first introduce ImmutableOptions, which is a subset of Options that cannot be changed during the course of a DB lifetime without restart. ColumnFamily will keep both Options and ImmutableOptions. Any component below ColumnFamily should only take ImmutableOptions in their constructor. Other options should be taken from APIs, which will be allowed to adjust dynamically. I am yet to make changes to memtable and other related classes to take ImmutableOptions in their ctor. That can be done in a seprate diff as this one is already pretty big. Test Plan: make all check Reviewers: yhchiang, igor, sdong Reviewed By: sdong Subscribers: leveldb, dhruba Differential Revision: https://reviews.facebook.net/D22545
53 lines
2.1 KiB
C++
53 lines
2.1 KiB
C++
// Copyright (c) 2013, 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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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#pragma once
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#include "rocksdb/comparator.h"
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#include "rocksdb/env.h"
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#include "rocksdb/status.h"
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#include "rocksdb/types.h"
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#include "rocksdb/options.h"
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#include "rocksdb/immutable_options.h"
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namespace rocksdb {
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struct Options;
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struct FileMetaData;
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class Env;
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struct EnvOptions;
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class Iterator;
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class TableCache;
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class VersionEdit;
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class TableBuilder;
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class WritableFile;
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extern TableBuilder* NewTableBuilder(
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const ImmutableCFOptions& options,
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const InternalKeyComparator& internal_comparator,
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WritableFile* file, const CompressionType compression_type,
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const CompressionOptions& compression_opts);
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// Build a Table file from the contents of *iter. The generated file
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// will be named according to number specified in meta. On success, the rest of
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// *meta will be filled with metadata about the generated table.
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// If no data is present in *iter, meta->file_size will be set to
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// zero, and no Table file will be produced.
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extern Status BuildTable(const std::string& dbname, Env* env,
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const ImmutableCFOptions& options,
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const EnvOptions& env_options,
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TableCache* table_cache, Iterator* iter,
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FileMetaData* meta,
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const InternalKeyComparator& internal_comparator,
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const SequenceNumber newest_snapshot,
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const SequenceNumber earliest_seqno_in_memtable,
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const CompressionType compression,
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const CompressionOptions& compression_opts,
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const Env::IOPriority io_priority = Env::IO_HIGH);
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} // namespace rocksdb
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