milvus/cpp/src/cache/CacheMgr.h
jinhai 9433bf81cc MS-554 Change license to apache 2.0
Former-commit-id: e09b7dd7872372fa0ece9f5d18ec4c316b89cbe8
2019-09-17 10:51:48 +08:00

64 lines
1.6 KiB
C++

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#pragma once
#include "Cache.h"
#include "utils/Log.h"
#include "metrics/Metrics.h"
namespace zilliz {
namespace milvus {
namespace cache {
template<typename ItemObj>
class CacheMgr {
public:
virtual uint64_t ItemCount() const;
virtual bool ItemExists(const std::string& key);
virtual ItemObj GetItem(const std::string& key);
virtual void InsertItem(const std::string& key, const ItemObj& data);
virtual void EraseItem(const std::string& key);
virtual void PrintInfo();
virtual void ClearCache();
int64_t CacheUsage() const;
int64_t CacheCapacity() const;
void SetCapacity(int64_t capacity);
protected:
CacheMgr();
virtual ~CacheMgr();
protected:
using CachePtr = std::shared_ptr<Cache<ItemObj>>;
CachePtr cache_;
};
}
}
}
#include "cache/CacheMgr.inl"