Transport SDK Callbacks
| gt2ClosedCallback | This callback is called when the connection has been closed. |
| gt2ConnectAttemptCallback | This notifies the socket that a remote system is attempting a connection. |
| gt2ConnectedCallback | This callback is called when a connection attempt with gt2Connect finishes. |
| gt2DumpCallback | Called whenever data is sent or received over a socket. |
| gt2PingCallback | This callback is called when a response to a ping sent on this connection is received. |
| gt2ReceivedCallback | This callback is called when a message is sent from the remote system with a gt2Send. |
| gt2ReceiveFilterCallback | Callback for filtering incoming data. |
| gt2SendFilterCallback | Callback for filtering outgoing data. |
| gt2SocketErrorCallback | This callback is used to notify the application of a closed socket or fatal socket error condition. |
| gt2UnrecognizedMessageCallback | This callback gets called when the sock receives a message that it cannot match to an existing connection. |