ExponentialBackoff strategy is an optimization strategy with a retry time of 2**n milliseconds (n means number of times).

LimitRetry limits the number of retries to max attempts.

LinearBackoff allows retries regularly with customized intervals.

NoRetry acquire the lock only once.

ErrLockNotHeld is returned when trying to release an inactive lock.

ErrLockNotObtained is returned when a lock cannot be obtained.

Lock represents an obtained, distributed lock.

client wraps a redis client.

Options describe the options for the lock.

RedisClient is a minimal client interface.

RetryStrategy allows to customise the lock retry strategy.