grpc/utils/backoff/backoff.go

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// Package backoff provides backoff functionality
package backoff
import (
"math"
"time"
)
// Do is a function x^e multiplied by a factor of 0.1 second.
// Result is limited to 2 minute.
func Do(attempts int) time.Duration {
if attempts > 13 {
return 2 * time.Minute
}
return time.Duration(math.Pow(float64(attempts), math.E)) * time.Millisecond * 100
}