Evstigneev Denis
38c5fe8b5a
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## Pull Request template Please, go through these steps before clicking submit on this PR. 1. Give a descriptive title to your PR. 2. Provide a description of your changes. 3. Make sure you have some relevant tests. 4. Put `closes #XXXX` in your comment to auto-close the issue that your PR fixes (if applicable). **PLEASE REMOVE THIS TEMPLATE BEFORE SUBMITTING** Reviewed-on: #369 Co-authored-by: Evstigneev Denis <danteevstigneev@yandex.ru> Co-committed-by: Evstigneev Denis <danteevstigneev@yandex.ru>
31 lines
833 B
Go
31 lines
833 B
Go
package client
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import (
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"context"
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"math"
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"time"
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"go.unistack.org/micro/v3/util/backoff"
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)
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// BackoffFunc is the backoff call func
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type BackoffFunc func(ctx context.Context, req Request, attempts int) (time.Duration, error)
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// BackoffExp using exponential backoff func
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func BackoffExp(_ context.Context, _ Request, attempts int) (time.Duration, error) {
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return backoff.Do(attempts), nil
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}
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// BackoffInterval specifies randomization interval for backoff func
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func BackoffInterval(minTime time.Duration, maxTime time.Duration) BackoffFunc {
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return func(_ context.Context, _ Request, attempts int) (time.Duration, error) {
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td := time.Duration(math.Pow(float64(attempts), math.E)) * time.Millisecond * 100
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if td < minTime {
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return minTime, nil
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} else if td > maxTime {
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return maxTime, nil
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}
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return td, nil
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}
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}
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