40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
/*
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* Copyright 2018 The Cartographer Authors
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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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#ifndef CARTOGRAPHER_METRICS_COUNTER_H_
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#define CARTOGRAPHER_METRICS_COUNTER_H_
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#include <map>
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#include <vector>
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namespace cartographer {
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namespace metrics {
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class Counter {
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public:
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// Counter instance that does nothing. Safe for use in static initializers.
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static Counter* Null();
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virtual ~Counter() = default;
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virtual void Increment() = 0;
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virtual void Increment(double by_value) = 0;
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};
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} // namespace metrics
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} // namespace cartographer
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#endif // CARTOGRAPHER_METRICS_COUNTER_H_
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