ceph/src/rocksdb/table/persistent_cache_options.h

   1 //  Copyright (c) 2011-present, Facebook, Inc.  All rights reserved.
   2 //  This source code is licensed under both the GPLv2 (found in the
   3 //  COPYING file in the root directory) and Apache 2.0 License
   4 //  (found in the LICENSE.Apache file in the root directory).
   5 #pragma once
   6
   7 #include <string>
   8
   9 #include "monitoring/statistics.h"
  10 #include "rocksdb/persistent_cache.h"
  11
  12 namespace rocksdb {
  13
  14 // PersistentCacheOptions
  15 //
  16 // This describe the caching behavior for page cache
  17 // This is used to pass the context for caching and the cache handle
  18 struct PersistentCacheOptions {
  19   PersistentCacheOptions() {}
  20   explicit PersistentCacheOptions(
  21       const std::shared_ptr<PersistentCache>& _persistent_cache,
  22       const std::string _key_prefix, Statistics* const _statistics)
  23       : persistent_cache(_persistent_cache),
  24         key_prefix(_key_prefix),
  25         statistics(_statistics) {}
  26
  27   virtual ~PersistentCacheOptions() {}
  28
  29   std::shared_ptr<PersistentCache> persistent_cache;
  30   std::string key_prefix;
  31   Statistics* statistics = nullptr;
  32 };
  33
  34 }  // namespace rocksdb