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Ensure internal Wayland connection is properly setup before creating LockScreen integration

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With the new Wayland only mode we start too fast and it can happen that
the initWithWorkspace is called before the client connection is fully
setup. This would result in a crash in the idletime plugin once it tries
to create a seat.

To prevent this problem the code is split out into a dedicated method
and only invoked if all interfaces have been announced on the internal
connection.

BUG: 385397
FIXED-IN: 5.11.1
This commit is contained in:
Martin Flöser 2017-09-30 16:33:45 +02:00
parent c27f6dcde1
commit 31b5b7f9f9
2 changed files with 37 additions and 19 deletions
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18
wayland_server.cpp
View file

@ -330,6 +330,18 @@ void WaylandServer::initWorkspace()
}
if (hasScreenLockerIntegration()) {
if (m_internalConnection.interfacesAnnounced) {
initScreenLocker();
} else {
connect(m_internalConnection.registry, &KWayland::Client::Registry::interfacesAnnounced, this, &WaylandServer::initScreenLocker);
}
} else {
emit initialized();
}
}
void WaylandServer::initScreenLocker()
{
ScreenLocker::KSldApp::self();
ScreenLocker::KSldApp::self()->setWaylandDisplay(m_display);
ScreenLocker::KSldApp::self()->setGreeterEnvironment(kwinApp()->processStartupEnvironment());
@ -350,7 +362,6 @@ void WaylandServer::initWorkspace()
if (m_initFlags.testFlag(InitalizationFlag::LockScreen)) {
ScreenLocker::KSldApp::self()->lock(ScreenLocker::EstablishLock::Immediate);
}
}
emit initialized();
}
@ -521,6 +532,11 @@ void WaylandServer::createInternalConnection()
m_internalConnection.shm = m_internalConnection.registry->createShmPool(name, version, this);
}
);
connect(registry, &Registry::interfacesAnnounced, this,
[this] {
m_internalConnection.interfacesAnnounced = true;
}
);
registry->setup();
}
);

2
wayland_server.h
View file

@ -200,6 +200,7 @@ private:
void configurationChangeRequested(KWayland::Server::OutputConfigurationInterface *config);
template <class T>
void createSurface(T *surface);
void initScreenLocker();
KWayland::Server::Display *m_display = nullptr;
KWayland::Server::CompositorInterface *m_compositor = nullptr;
KWayland::Server::SeatInterface *m_seat = nullptr;
@ -222,6 +223,7 @@ private:
QThread *clientThread = nullptr;
KWayland::Client::Registry *registry = nullptr;
KWayland::Client::ShmPool *shm = nullptr;
bool interfacesAnnounced = false;
} m_internalConnection;
struct {