I am programming a small application with qt5. This application gets the reply from an API server every minute. Every thing is working fine but I ran into a bug.
While testing the application I found that if my wireless is disconnected and reconnected again the application will work fine. Also if I use my broadband connection and the connection is disconnected and reconnected again every thing works fine also. Now if I use my wireless at application startup then I disconnect the wireless and connect my broadband the program won't see the broadband connection and keeps giving me network error.
I use a single QNetworkAccessManager
instance for the connection. The interesting thing is that If I created a new QNetworkAccessManager
instance for each request the application will work fine. But I think there will be overhead in declaring a new instance for each request and making connections. I tried also to use clearAccessCache()
before the request with no luck.
So basically I am looking for some thing to reset QNetworkAccessManager
with each request. Here is a sample code of my request:
// At class construct
manager = new QNetworkAccessManager(this);
// ....
// At member function
url = new QUrl("http://www.gridstatusnow.com/status");
manager->get(QNetworkRequest(*url));
You can try to recreate the
QNetworkAccessManager
only if network is not accessible:The documentation explains: