Session Messages

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Session Messages

Session messages manage the lifecycle of a TCP connection to a Starbase gateway, including authentication, heartbeating, and sequence number recovery.

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LogonRequest (1)

First message sent by client after establishing TCP connection.

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LogonResponse (2)

Response to LogonRequest on successful logon.

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LogoutRequest (4)

Request by client to gracefully terminate a connection.

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LoggedOut (5)

Sent in response to LogonRequest if logon failed, or in response to LogoutRequest, or unsolicited for other reasons.

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Heartbeat (10)

Sent by client or server periodically in the absence of other messages.

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TestRequest (11)

Request a Heartbeat message. Can be sent by either client or server.

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ResendRequest (20)

Sent by client to request resend of a limited number of missed events. Works only when reconnecting to the same gateway host. The server will never send this message to a client.

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GapFill (21)

Sent by server in lieu of admin/session messages while handling a resend request.

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Reject (30)

Sent by the server in response to an unrecognized or malformed message from the client. The table below lists all possible values of the reason field.