bergquist
50 lines
1.9 KiB
Go
50 lines
1.9 KiB
Go
// Copyright (c) 2017 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package metrics
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import (
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"time"
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)
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// StartStopwatch begins recording the executing time of an event, returning
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// a Stopwatch that should be used to stop the recording the time for
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// that event. Multiple events can be occurring simultaneously each
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// represented by different active Stopwatches
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func StartStopwatch(timer Timer) Stopwatch {
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return Stopwatch{t: timer, start: time.Now()}
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}
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// A Stopwatch tracks the execution time of a specific event
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type Stopwatch struct {
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t Timer
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start time.Time
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}
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// Stop stops executing of the stopwatch and records the amount of elapsed time
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func (s Stopwatch) Stop() {
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s.t.Record(s.ElapsedTime())
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}
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// ElapsedTime returns the amount of elapsed time (in time.Duration)
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func (s Stopwatch) ElapsedTime() time.Duration {
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return time.Since(s.start)
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}
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