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arangodb/arangod/Cache/CacheManagerFeature.h

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////////////////////////////////////////////////////////////////////////////////
/// DISCLAIMER
///
/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
///
/// Licensed 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.
///
/// Copyright holder is ArangoDB GmbH, Cologne, Germany
///
/// @author Daniel H. Larkin
////////////////////////////////////////////////////////////////////////////////
#ifndef ARANGOD_CACHE_CACHE_MANAGER_FEATURE_H
#define ARANGOD_CACHE_CACHE_MANAGER_FEATURE_H 1
#include "ApplicationFeatures/ApplicationFeature.h"
#include "Cache/CacheManagerFeatureThreads.h"
#include "Cache/Manager.h"
namespace arangodb {
class CacheManagerFeature final : public application_features::ApplicationFeature {
public:
// note that the cache is optional and that MANAGER can be a nullptr!
static cache::Manager* MANAGER;
explicit CacheManagerFeature(application_features::ApplicationServer& server);
~CacheManagerFeature();
void collectOptions(std::shared_ptr<options::ProgramOptions>) override final;
void validateOptions(std::shared_ptr<options::ProgramOptions>) override final;
void start() override final;
void beginShutdown() override final;
void stop() override final;
void unprepare() override final;
private:
static const uint64_t minRebalancingInterval;
std::unique_ptr<cache::Manager> _manager;
std::unique_ptr<CacheRebalancerThread> _rebalancer;
uint64_t _cacheSize;
uint64_t _rebalancingInterval;
};
} // namespace arangodb
#endif