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Hi, I have a QTcpSocket in my application. I am implementing a client application which must retry connecting to a server indefinitely, but with a capped exponential backoff until the application terminates (private network, private server). My question is: If I call QTcpSocket->connectToHost(host, port) but the socket fails to connect (timeout, error, whatever) is disconnected() called as well as error()? My guess is no, because the socket was never "connected", but I am not sure because the documentation on error() and disconnected() is sparse. I haven't the time to build a thorough test for this. I'm hoping that someone will know the answer here so I can design the behaviour of my application sensibly. Cheers, A -- [ signature omitted ]
Adam Hawes wrote: >If I call QTcpSocket->connectToHost(host, port) but the socket fails to >connect (timeout, error, whatever) is disconnected() called as well as >error()? My guess is no, because the socket was never "connected", but > I am not sure because the documentation on error() and disconnected() > is sparse. disconnected() can only be emitted after connected() was emitted. -- [ signature omitted ]
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> disconnected() can only be emitted after connected() was emitted. Thanks, that's what I thought but I hadn't the time to write a suite of tests to verify all the possible non-connection cases. One case I have run into is when a socket is in the connecting state (remote host is not responding at all) and you call QCoreApplication::quit() you see the disconnected signal from the socket; hence my confusion. Regards, Adam -- [ signature omitted ]