70645355ad
Summary: **Summary:** Simplified the code layout by moving FIFOCompactionPicker to a separate file. **Why?:** While trying to add ttl functionality to universal compaction, I found that `FIFOCompactionPicker` class and its impl methods to be interspersed between `LevelCompactionPicker` methods which kind-of made the code a little hard to traverse. So I moved `FIFOCompactionPicker` to a separate compaction_picker_fifo.h/cc file, similar to `UniversalCompactionPicker`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/4724 Differential Revision: D13227914 Pulled By: sagar0 fbshipit-source-id: 89471766ea67fa4d87664a41c057dd7df4b3d4e3
53 lines
2.2 KiB
C++
53 lines
2.2 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).
|
|
//
|
|
// 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.
|
|
|
|
#pragma once
|
|
#ifndef ROCKSDB_LITE
|
|
|
|
#include "db/compaction_picker.h"
|
|
|
|
namespace rocksdb {
|
|
class FIFOCompactionPicker : public CompactionPicker {
|
|
public:
|
|
FIFOCompactionPicker(const ImmutableCFOptions& ioptions,
|
|
const InternalKeyComparator* icmp)
|
|
: CompactionPicker(ioptions, icmp) {}
|
|
|
|
virtual Compaction* PickCompaction(const std::string& cf_name,
|
|
const MutableCFOptions& mutable_cf_options,
|
|
VersionStorageInfo* version,
|
|
LogBuffer* log_buffer) override;
|
|
|
|
virtual Compaction* CompactRange(
|
|
const std::string& cf_name, const MutableCFOptions& mutable_cf_options,
|
|
VersionStorageInfo* vstorage, int input_level, int output_level,
|
|
uint32_t output_path_id, uint32_t max_subcompactions,
|
|
const InternalKey* begin, const InternalKey* end,
|
|
InternalKey** compaction_end, bool* manual_conflict) override;
|
|
|
|
// The maximum allowed output level. Always returns 0.
|
|
virtual int MaxOutputLevel() const override { return 0; }
|
|
|
|
virtual bool NeedsCompaction(
|
|
const VersionStorageInfo* vstorage) const override;
|
|
|
|
private:
|
|
Compaction* PickTTLCompaction(const std::string& cf_name,
|
|
const MutableCFOptions& mutable_cf_options,
|
|
VersionStorageInfo* version,
|
|
LogBuffer* log_buffer);
|
|
|
|
Compaction* PickSizeCompaction(const std::string& cf_name,
|
|
const MutableCFOptions& mutable_cf_options,
|
|
VersionStorageInfo* version,
|
|
LogBuffer* log_buffer);
|
|
};
|
|
} // namespace rocksdb
|
|
#endif // !ROCKSDB_LITE
|