limiter

type HillClimbing struct {
	// contains filtered or unexported fields
}

type HillClimbingOption int64

type HillClimbingUpdater struct {
	// contains filtered or unexported fields
}

type Limiter interface {
	Inflight() uint64
	Remaining() uint64
	// Acquire inspects the current status of the system:
	// - if reaches the limitation, reject the request immediately.
	// - if not, grant this request and return an Updater defined below.
	Acquire() (Updater, error)
}

type Updater interface {
	// DoUpdate is called once an invocation is finished, it tells Updater that the invocation is finished, and please
	// update the Remaining, Inflight parameters of the Limiter.
	DoUpdate() error
}