void DeviceKitLister::Init() {
interface_.reset(new OrgFreedesktopUDisksInterface(
OrgFreedesktopUDisksInterface::staticInterfaceName(),
"/org/freedesktop/UDisks", QDBusConnection::systemBus()));
// Get all the devices currently attached
QDBusPendingReply<QList<QDBusObjectPath> > reply =
interface_->EnumerateDevices();
reply.waitForFinished();
if (!reply.isValid()) {
qLog(Warning) << "Error enumerating DeviceKit-disks devices:"
<< reply.error().name() << reply.error().message();
interface_.reset();
return;
}
// Listen for changes
connect(interface_.get(), SIGNAL(DeviceAdded(QDBusObjectPath)),
SLOT(DBusDeviceAdded(QDBusObjectPath)));
connect(interface_.get(), SIGNAL(DeviceRemoved(QDBusObjectPath)),
SLOT(DBusDeviceRemoved(QDBusObjectPath)));
connect(interface_.get(), SIGNAL(DeviceChanged(QDBusObjectPath)),
SLOT(DBusDeviceChanged(QDBusObjectPath)));
// Get information about each one
QMap<QString, DeviceData> device_data;
for (const QDBusObjectPath& path : reply.value()) {
DeviceData data = ReadDeviceData(path);
if (data.suitable) device_data[data.unique_id()] = data;
}
// Update the internal cache
{
QMutexLocker l(&mutex_);
device_data_ = device_data;
}
// Notify about the changes
for (const QString& id : device_data.keys()) {
emit DeviceAdded(id);
}
}
void DeviceKitLister::DBusDeviceChanged(const QDBusObjectPath &path) {
bool already_known = false;
{
QMutexLocker l(&mutex_);
already_known = !FindUniqueIdByPath(path).isNull();
}
DeviceData data = ReadDeviceData(path);
if (already_known && !data.suitable)
DBusDeviceRemoved(path);
else if (!already_known && data.suitable)
DBusDeviceAdded(path);
else if (already_known && data.suitable) {
{
QMutexLocker l(&mutex_);
device_data_[data.unique_id()] = data;
}
emit DeviceChanged(data.unique_id());
}
}