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Network error

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  • M Offline
    M Offline
    MartinD
    wrote on last edited by
    #1

    Hi,
    In Qt 5.7.1/MSVC32 I create one instance of QNetworkManager. Then I'm making several get request per minute. After several minutes/hours, I receive these errors:

    QNetworkReply::NetworkError(UnknownNetworkError) // first, error is received from error signal of QNetworkReply
    QIODevice::read (QDisabledNetworkReply): device not open // then I receive finished signal from QNetworkManager, but I receive this error on QNetworkReply readAll() method

    Can you please advise?

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    • VRoninV Offline
      VRoninV Offline
      VRonin
      wrote on last edited by
      #2

      Are you deleting the QNetworkReplys after use? it might be just too much cluttering

      "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
      ~Napoleon Bonaparte

      On a crusade to banish setIndexWidget() from the holy land of Qt

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      • M Offline
        M Offline
        MartinD
        wrote on last edited by
        #3

        @VRonin said in Network error:

        Are you deleting the QNetworkReplys after use? it might be just too much cluttering

        Yes, I call reply->deleteLater(); on finished() signal.

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        • SGaistS Offline
          SGaistS Offline
          SGaist
          Lifetime Qt Champion
          wrote on last edited by
          #4

          Hi,

          I have a vague memory about a similar situation but I can't currently remember the exact sequence. In any case, if possible I'd test with the latest stable version of Qt to check whether it's still happening.

          Interested in AI ? www.idiap.ch
          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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