Support TCP for protocol messages#3636

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softins wants to merge 49 commits into

jamulussoftware:mainfrom

softins:tcp-protocol

Commits on Jun 19, 2026

Add --enabletcp option for server
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Initial skeleton for TCP protocol server
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Add handling of CL msgs for Server and client list
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Create CLM_TCP_SUPPORTED and related methods
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Add CLM_TCP_SUPPORTED message generation when TCP enabled
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Add flag to request TCP client use
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Add handlers for TCP Supported message
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Propagate TCP client flag down to OnSendCLProtMessage
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Delete QTcpServer object when done
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Added some debug output
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Update copyright years
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Separate CTcpConnection code from CTcpServer
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Make CTcpConnection members private
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Add client-side TCP code
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Request server list via TCP if required
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Add message context parameter for CLM_TCP_SUPPORTED
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Add Qt version check for errorOccurred()
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Fetch client list over TCP when necessary for a server
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Create CLM_CLIENT_ID and related methods
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Add OnClientIDReceived slot to CChannel
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Skeleton support for connected mode TCP
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Move TCP debug message from connectdlg to client
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Add missing return
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Remove unneeded #include from tcpconnection
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Send client list via TCP when connection available
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Add skeleton handler for CLClientID to CServer
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Add disconnecFromHost method to CTcpConnection
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Mods to CTcpConnection for future use
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In server, link TCP channel to UDP channel by client ID
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Replace boolean TCP flag with multimode enum
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Add creation of session-long TCP connection
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Route CLConnClientList depending on whether connected
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Be specific about bDisconAfterRecv for TCP
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Rework TCP session-mode connection
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Minor comment updates
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Add support for sending Empty Message over TCP
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Implement keepalive over session long TCP connection
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Clarify comment
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Make CTcpConnection work in serveronly mode.
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Add timeout for TCP connection
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Add an idle timeout on the server side
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Add document describing TCP operation
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Update copyright headers for new source files
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Use new way to discover IPv6 availability
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Only quote port number in TCP server start message.
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Small changes to address review comments
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Improve naming of TCP signals and slots
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Update protocol ID values
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Add FS_TCP_ENABLED to server features
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