limiter

type ConcurrencyLimiter interface {
	// Acquire reports if next access to the protected resource is allowed.
	Acquire() bool

	// Release claims a previous taken access has released the resource.
	Release()

	// Status returns the total quota and occupied.
	Status() (limit, occupied int)
}

type DummyConcurrencyLimiter struct{}

type DummyRateLimiter struct{}

type LimitReporter interface {
	ConnOverloadReport()
	QPSOverloadReport()
}

type RateLimiter interface {
	// Acquire reports if next access to the protected resource is allowed.
	Acquire() bool

	// Status returns the rate limit.
	Status() (max, current int, interval time.Duration)
}

type Updatable interface {
	UpdateLimit(limit int)
}