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28 lines
532 B
Go
28 lines
532 B
Go
package dispatcher
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import (
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"math/rand"
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"time"
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)
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type periodChooser struct {
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period time.Duration
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epsilon time.Duration
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rand *rand.Rand
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}
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func newPeriodChooser(period, eps time.Duration) *periodChooser {
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return &periodChooser{
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period: period,
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epsilon: eps,
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rand: rand.New(rand.NewSource(time.Now().UnixNano())),
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}
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}
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func (pc *periodChooser) Choose() time.Duration {
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var adj int64
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if pc.epsilon > 0 {
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adj = rand.Int63n(int64(2*pc.epsilon)) - int64(pc.epsilon)
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}
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return pc.period + time.Duration(adj)
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}
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