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/*
internal is a private internal package.
*/
package internal
import (
"math/rand"
"time"
)
func RetryBackoff(retry int, minBackoff, maxBackoff time.Duration) time.Duration {
if retry < 0 {
panic("not reached")
}
if minBackoff == 0 {
return 0
}
d := minBackoff << uint(retry)
d = minBackoff + time.Duration(rand.Int63n(int64(d)))
if d > maxBackoff || d < minBackoff {
d = maxBackoff
}
return d
}
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