listener

type Listener interface {
	// Accept waits for and returns the next connection to the listener.
	Accept() (connection.Connection, error)

	// Close closes the listener.
	// Any blocked Accept operations will be unblocked and return errors.
	Close() error

	// Addr returns the listener's network address.
	Addr() net.Addr

	// FD returns the listener's fd
	FD() int
}

type TcpListener struct {
	Fd      int
	TcpAddr *net.TCPAddr
}