ob_lru_cache.h

/* Copyright (c) 2021 OceanBase and/or its affiliates. All rights reserved.
miniob is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:
         http://license.coscl.org.cn/MulanPSL2
THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details. */
 
#pragma once
 
#include <stdint.h>
#include <cstddef>
 
namespace oceanbase {
 
template <typename KeyType, typename ValueType>
class ObLRUCache
{
public:
  ObLRUCache(size_t capacity) : capacity_(capacity) {}
 
  bool get(const KeyType &key, ValueType &value) { return false; }
 
  void put(const KeyType &key, const ValueType &value) {}
 
  bool contains(const KeyType &key) const { return false; }
 
private:
  size_t capacity_;
};
 
template <typename Key, typename Value>
ObLRUCache<Key, Value> *new_lru_cache(uint32_t capacity)
{
  return nullptr;
}
 
}  // namespace oceanbase