backoff

func BurstNotifier ¶

func BurstNotifier(burst int, minWait, maxWait time.Duration, until <-chan struct{}) <-chan struct{}

func Notifier ¶

func Notifier(minWait, maxWait time.Duration, until <-chan struct{}) <-chan struct{}

Notifier returns a chan that yields a struct{}{} every so often. the wait period between structs is between minWait and maxWait. greedy consumers that continuously read from the returned chan will see the wait period generally increase.

Note: this func panics if minWait is a non-positive value to avoid busy-looping.