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37 lines
1.2 KiB
37 lines
1.2 KiB
// Copyright 2017, OpenCensus 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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package internal // import "go.opencensus.io/internal" |
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import ( |
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"fmt" |
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"time" |
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"go.opencensus.io" |
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) |
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// UserAgent is the user agent to be added to the outgoing |
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// requests from the exporters. |
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var UserAgent = fmt.Sprintf("opencensus-go [%s]", opencensus.Version()) |
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// MonotonicEndTime returns the end time at present |
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// but offset from start, monotonically. |
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// |
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// The monotonic clock is used in subtractions hence |
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// the duration since start added back to start gives |
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// end as a monotonic time. |
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// See https://golang.org/pkg/time/#hdr-Monotonic_Clocks |
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func MonotonicEndTime(start time.Time) time.Time { |
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return start.Add(time.Now().Sub(start)) |
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}
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