Курнат Андрей
51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
// Copyright The OpenTelemetry Authors
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// SPDX-License-Identifier: Apache-2.0
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package zpages // import "go.opentelemetry.io/contrib/zpages"
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import (
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"slices"
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"time"
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)
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const (
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zeroDuration = time.Duration(0)
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maxDuration = time.Duration(1<<63 - 1)
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)
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var defaultBoundaries = newBoundaries([]time.Duration{
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10 * time.Microsecond,
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100 * time.Microsecond,
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time.Millisecond,
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10 * time.Millisecond,
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100 * time.Millisecond,
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time.Second,
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10 * time.Second,
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100 * time.Second,
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})
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// boundaries represents the interval bounds for the latency based samples.
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type boundaries struct {
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durations []time.Duration
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}
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// newBoundaries returns a new boundaries.
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func newBoundaries(durations []time.Duration) *boundaries {
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slices.Sort(durations)
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return &boundaries{durations: durations}
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}
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// numBuckets returns the number of buckets needed for these boundaries.
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func (lb boundaries) numBuckets() int {
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return len(lb.durations) + 1
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}
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// getBucketIndex returns the appropriate bucket index for a given latency.
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func (lb boundaries) getBucketIndex(latency time.Duration) int {
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i := 0
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for i < len(lb.durations) && latency >= lb.durations[i] {
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i++
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}
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return i
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}
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