| /* |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You 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. |
| */ |
| |
| package monitoring |
| |
| import ( |
| "time" |
| |
| "github.com/prometheus/client_golang/prometheus" |
| ) |
| |
| // Timer is a helper type to time functions. Use NewTimer to create new |
| // instances. |
| type Timer struct { |
| begin time.Time |
| } |
| |
| // NewTimer creates a new Timer. |
| func NewTimer() *Timer { |
| return &Timer{ |
| begin: time.Now(), |
| } |
| } |
| |
| // ObserveDurationInSeconds records the duration passed since the Timer was created |
| // with NewTimer. It calls the Observe method of the provided Observer. The observed |
| // duration is also returned. |
| func (t *Timer) ObserveDurationInSeconds(o prometheus.Observer) time.Duration { |
| d := time.Since(t.begin) |
| o.Observe(d.Seconds()) |
| return d |
| } |