WebSocket::Delegate Class Reference

The delegate class is used to process websocket events. More...

Public Member Functions
virtual	~Delegate ()
	Destructor of Delegate.
virtual void	onOpen (WebSocket *ws)=0
	This function to be called after the client connection complete a handshake with the remote server.
virtual void	onMessage (WebSocket *ws, const Data &data)=0
	This function to be called when data has appeared from the server for the client connection.
virtual void	onClose (WebSocket *ws)=0
	When the WebSocket object connected wants to close or the protocol won't get used at all and current _readyState is State::CLOSING,this function is to be called.
virtual void	onError (WebSocket *ws, const ErrorCode &error)=0
	This function is to be called in the following cases:

Detailed Description

The delegate class is used to process websocket events.

The most member function are pure virtual functions,they should be implemented the in subclass. NA

Constructor & Destructor Documentation

virtual ~Delegate ( )

inlinevirtual

Destructor of Delegate.

Member Function Documentation

virtual void onOpen ( WebSocket *  ws )

pure virtual

This function to be called after the client connection complete a handshake with the remote server.

This means that the WebSocket connection is ready to send and receive data.

Parameters

ws	The WebSocket object connected

virtual void onMessage ( WebSocket *  ws, const Data &  data  )

pure virtual

This function to be called when data has appeared from the server for the client connection.

Parameters

ws	The WebSocket object connected.
data	Data object for message.

virtual void onClose ( WebSocket *  ws )

pure virtual

When the WebSocket object connected wants to close or the protocol won't get used at all and current _readyState is State::CLOSING,this function is to be called.

Parameters

ws	The WebSocket object connected.

virtual void onError ( WebSocket *  ws, const ErrorCode &  error  )

pure virtual

This function is to be called in the following cases:

1. client connection is failed.
2. the request client connection has been unable to complete a handshake with the remote server.
3. the protocol won't get used at all after this callback and current _readyState is State::CONNECTING.
4. when a socket descriptor needs to be removed from an external polling array. in is again the struct libwebsocket_pollargs containing the fd member to be removed. If you are using the internal polling loop, you can just ignore it and current _readyState is State::CONNECTING.

Parameters

ws	The WebSocket object connected.
error	WebSocket::ErrorCode enum,would be ErrorCode::TIME_OUT or ErrorCode::CONNECTION_FAILURE.

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The documentation for this class was generated from the following file:

• WebSocket.h