Method and apparatus providing connection recovery for a chat client

摘要

A method, apparatus and computer program product for providing connection recovery for a chat client is presented. A chat session connection is established between a chat client and a server. Heartbeat messages are exchanged between the chat client and the server at predetermined time intervals. When a failure to receive a heartbeat message for longer than one of the predetermined time intervals, then a lost connection message is provided to at least one of the server and client. Messages for client are queued at the server while the connection is lost; and messages for the server are queued at the client while the connection is lost. If the connection can be re-established the queued messages are sent, otherwise the session is terminated.

主权项

1. A computer-implemented method in which a computer system running a chat client performs operations providing connection recovery, the method comprising:
requesting by said computer system a chat session connection with a server; sending, from said computer system, heartbeat messages from the computer system to said server at a predetermined time interval in a first hidden frame, keeping the heartbeat messages transparent from said chat client, wherein said sending heartbeat messages comprises sending, by said computer system, a serverPoll message to said server; receiving a return heartbeat message from the server in response to each of the heartbeat messages sent from the computer system, wherein the return heartbeat message comprises a serverPolled function callback in a second hidden frame; detecting, by said computer system, a failure to receive a serverPolled function callback for longer than one of said predetermined time intervals, indicating said chat client connection is lost; and queuing messages at said computer system while said chat session connection is lost.