[Interest] Bearer management on Linux with NetworkManager and switching between different connection profiles

[Jan Kundrát]

On Friday, 3 January 2014 11:38:27 CEST, Aaron McCarthy wrote:
> The QNetworkConfigurationManager::onlineStateChanged() signal 
> can be used for this.

Unfortunately, this is not the case. When wlan0 and eth0 are both connected 
initially, the established sockets all use the eth0. As the cable gets 
yanked out, new connections start using the wlan0, but the existing ones 
are now stuck waiting for a timeout. However, no signal is emitted because 
the system has always had at least one connection available, and was 
therefore "online" all the time.

> From what I understand of your usecase you do not need to both 
> with network sessions, the system is bringing up the best interface for 
you.

The application also has to work on Harmattan which does use the network 
sessions, otherwise the platform will not prompt the user for a connection 
when it's needed.

Anyway, code which works on both desktop Linux and Harmattan is available 
at [1]. I'm seeing spurious reconnects every now and then, but I don't have 
more details yet.

Cheers,
Jan

[1] 
http://quickgit.kde.org/?p=trojita.git&a=blob&h=2cdfa505&f=src/Imap/Model/NetworkWatcher.cpp

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