reserveport

type PortManager interface {
	// ReservePort reserves a new port. The lifecycle of the returned port is transferred to the caller.
	ReservePort() (ReservedPort, error)
	ReservePortOrFail(t *testing.T) ReservedPort
	ReservePortNumber() (uint16, error)
	ReservePortNumberOrFail(t *testing.T) uint16
	// Close shuts down this manager and frees any associated resources.
	Close() error
	CloseSilently()
}

type ReservedPort interface {
	// GetPort returns the bound port number.
	GetPort() uint16
	// Close unbinds this port.
	Close() error
	CloseSilently()
}