mirror of https://gitee.com/bigwinds/arangodb
74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2018 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 Heiko Kernbach
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_AQL_LIMIT_STATS_H
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#define ARANGOD_AQL_LIMIT_STATS_H
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#include <cstddef>
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#include "ExecutionStats.h"
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namespace arangodb {
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namespace aql {
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class LimitStats {
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public:
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LimitStats() noexcept : _fullCount(0) {}
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LimitStats(LimitStats const&) = default;
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LimitStats& operator=(LimitStats const&) = default;
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// It is relied upon that other._fullcount is zero after the move!
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LimitStats(LimitStats&& other) noexcept : _fullCount(other._fullCount) {
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other._fullCount = 0;
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}
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LimitStats& operator=(LimitStats&& other) noexcept {
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_fullCount = other._fullCount;
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other._fullCount = 0;
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return *this;
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};
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void incrFullCount() noexcept { _fullCount++; }
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void incrFullCountBy(size_t amount) noexcept { _fullCount += amount; }
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std::size_t getFullCount() const noexcept { return _fullCount; }
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private:
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std::size_t _fullCount;
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};
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inline ExecutionStats& operator+=(ExecutionStats& executionStats,
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LimitStats const& limitStats) noexcept {
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executionStats.fullCount += limitStats.getFullCount();
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return executionStats;
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}
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inline LimitStats& operator+=(LimitStats& limitStats, LimitStats const& other) noexcept {
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limitStats.incrFullCountBy(other.getFullCount());
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return limitStats;
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}
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}
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}
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#endif // ARANGOD_AQL_LIMIT_STATS_H
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