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34 lines
998 B
34 lines
998 B
// Copyright 2020 fatedier, fatedier@gmail.com |
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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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package metric |
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// GaugeMetric represents a single numerical value that can arbitrarily go up |
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// and down. |
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type GaugeMetric interface { |
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Inc() |
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Dec() |
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Set(float64) |
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} |
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// CounterMetric represents a single numerical value that only ever |
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// goes up. |
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type CounterMetric interface { |
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Inc() |
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} |
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// HistogramMetric counts individual observations. |
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type HistogramMetric interface { |
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Observe(float64) |
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}
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