mirror of https://gitee.com/bigwinds/arangodb
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2016 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Jan Steemann
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGODB_APPLICATION_FEATURES_MAX_MAP_COUNT_FEATURE_H
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#define ARANGODB_APPLICATION_FEATURES_MAX_MAP_COUNT_FEATURE_H 1
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#include "ApplicationFeatures/ApplicationFeature.h"
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namespace arangodb {
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class MaxMapCountFeature final : public application_features::ApplicationFeature {
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public:
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explicit MaxMapCountFeature(application_features::ApplicationServer& server);
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~MaxMapCountFeature();
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void prepare() override final;
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void collectOptions(std::shared_ptr<options::ProgramOptions>) override final;
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static constexpr bool needsChecking() {
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#ifdef __linux__
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return true;
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#else
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return false;
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#endif
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}
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static uint64_t minimumExpectedMaxMappings();
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static uint64_t actualMaxMappings();
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static bool isNearMaxMappings();
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private:
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static bool isNearMaxMappingsInternal(double& suggestedCacheTime) noexcept;
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};
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} // namespace arangodb
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#endif |