| // 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). |
| |
| #pragma once |
| #ifndef ROCKSDB_LITE |
| #include <memory> |
| |
| #include "rocksdb/table_properties.h" |
| |
| namespace rocksdb { |
| |
| // Creates a factory of a table property collector that marks a SST |
| // file as need-compaction when it observe at least "D" deletion |
| // entries in any "N" consecutive entires. |
| // |
| // @param sliding_window_size "N". Note that this number will be |
| // round up to the smallest multiple of 128 that is no less |
| // than the specified size. |
| // @param deletion_trigger "D". Note that even when "N" is changed, |
| // the specified number for "D" will not be changed. |
| extern std::shared_ptr<TablePropertiesCollectorFactory> |
| NewCompactOnDeletionCollectorFactory( |
| size_t sliding_window_size, |
| size_t deletion_trigger); |
| } // namespace rocksdb |
| |
| #endif // !ROCKSDB_LITE |
