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gitea/vendor/github.com/go-redis/redis/v8/internal/internal.go
6543 ac97ea573c
[Vendor] Update go-redis to v8.5.0 (#13749)
* Update go-redis to v8.4.0

* github.com/go-redis/redis/v8  v8.4.0 -> v8.5.0

* Apply suggestions from code review

Co-authored-by: zeripath <art27@cantab.net>

* TODO

* Use the Queue termination channel as the default context for pushes

Signed-off-by: Andrew Thornton <art27@cantab.net>

* missed one

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: zeripath <art27@cantab.net>
2021-02-10 21:28:32 +00:00

30 lines
452 B
Go
Vendored

package internal
import (
"time"
"github.com/go-redis/redis/v8/internal/rand"
)
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)
if d < minBackoff {
return maxBackoff
}
d = minBackoff + time.Duration(rand.Int63n(int64(d)))
if d > maxBackoff || d < minBackoff {
d = maxBackoff
}
return d
}