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TODO

1.  user sends initiates a transaction after either sending/ receiving a logout. 

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Active sessions are monitored at the application level by each party via Heartbeat and TestRequest messages. Indications of problems must result in the monitoring party aborting the session.

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TestRequest messages may be issued by either party and should result in a Heartbeat being sent in response, echoing the specified TestRequestID. Under normal circumstances, TestRequest messages may therefore be used to obtain an approximate indication of message round-trip times between the MFAPI Client and the Whisperer Feed Handler.

Session Termination

If no Heartbeat response is received within HeartBtInt + MaxTx seconds of the issuance of the TestRequest, then the party should abort the session with a Logout message.

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All Logout messages must be echoed. If no LogoutResponse is received within HeartBtInt + MaxTx seconds of the issuance of the Logout, then the session and associated TCP socket connection shoul dbe should be dropped.

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