https://bugs.kde.org/show_bug.cgi?id=474631
Bug ID: 474631
Summary: ModemManager-Qt hits asserts if ModemManager has
errors starting up and exporting objects to bus
Classification: Frameworks and Libraries
Product: frameworks-modemmanager-qt
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: uhh...@gmail.com
CC: lamar...@kde.org, lukas.ti...@merlin.cz
Target Milestone: ---
mmqt hits an assert in modemdevice.cpp around here:
```
bool success =
QDBusConnection::systemBus().connect(QLatin1String(MMQT_DBUS_SERVICE),
QLatin1String(MMQT_DBUS_PATH),
QLatin1String(DBUS_INTERFACE_MANAGER),
QStringLiteral("InterfacesAdded"),
this,
SLOT(onInterfacesAdded(QDBusObjectPath, ModemManager::MMVariantMapMap)));
Q_ASSERT(success);
```
OBSERVED RESULT
mmqt assumes that modemmanager is always functional
EXPECTED RESULT
mmqt gracefully handles modemmanager failing to initialise due to e.g. hardware
issues
ADDITIONAL INFORMATION
this causes downstream issues in kded and plasmashell, which causes much of the
plasma session to become unfunctional due to code calling into mmqt
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