NewBucket returns a new token bucket that fills at the rate of one token every fillInterval, up to the given maximum capacity.

NewBucketWithClock is identical to NewBucket but injects a testable clock interface.

NewBucketWithQuantum is similar to NewBucket, but allows the specification of the quantum size - quantum tokens are added every fillInterval.

NewBucketWithQuantumAndClock is like NewBucketWithQuantum, but also has a clock argument that allows clients to fake the passing of time.

NewBucketWithRate returns a token bucket that fills the bucket at the rate of rate tokens per second up to the given maximum capacity.

NewBucketWithRateAndClock is identical to NewBucketWithRate but injects a testable clock interface.

Reader returns a reader that is rate limited by the given token bucket.

Writer returns a reader that is rate limited by the given token bucket.

Bucket represents a token bucket that fills at a predetermined rate.

Clock represents the passage of time in a way that can be faked out for tests.