dxFeed .Net API 7.1.0

Version 7.1.0

• [DXFC-209] Implemented the heartbeat semantics with payload

  • Added the new method NativeConnection.SetOnServerHeartbeatHandler(OnServerHeartbeatHandler handler)
    that sets a handler that will be called when a server heartbeat arrives and contains non empty payload

  • Added the new delegate type delegate void OnServerHeartbeatHandler(IDxConnection connection, DateTime serverDateTime, int serverLagMark, int connectionRtt)
    which is describes the handler type of a connection's incoming heartbeat notification
    Passed parameters:

    • connection - The current connection object
    • serverDateTime - The server UTC time (from the incoming heartbeat payload)
    • serverLagMark - The server's messages composing lag time in microseconds (from the incoming heartbeat payload)
    • connectionRtt - The calculated connection RTT in microseconds

    An example of usage:

    connection.SetOnServerHeartbeatHandler((connection, time, lagMark, rtt) => {
        Console.Error.WriteLine($"##### Server time (UTC) = {time}, Server lag = {lagMark} us, RTT = {rtt} us #####");
    });