base

const (
	// FrameString identifies a string frame.
	FrameString FrameType = iota
	// FrameBinary identifies a binary frame.
	FrameBinary
)

const (
	// OPEN is sent from the server when a new transport is opened (recheck).
	OPEN PacketType = iota
	// CLOSE is request the close of this transport but does not shutdown the
	// connection itself.
	CLOSE
	// PING is sent by the client. Server should answer with a pong packet
	// containing the same data.
	PING
	// PONG is sent by the server to respond to ping packets.
	PONG
	// MESSAGE is actual message, client and server should call their callbacks
	// with the data.
	MESSAGE
	// UPGRADE is sent before engine.io switches a transport to test if server
	// and client can communicate over this transport. If this test succeed,
	// the client sends an upgrade packets which requests the server to flush
	// its cache on the old transport and switch to the new transport.
	UPGRADE
	// NOOP is a noop packet. Used primarily to force a poll cycle when an
	// incoming websocket connection is received.
	NOOP
)