QDBusServer: delay processing of D-Bus messages

We must ensure that QDBusServer's newConnection() signal has been
processed by the application, before starting processing messages on it.

Task-number: QTBUG-55087
Change-Id: I595329b2f98788dbf9f40558b8c230c0c0817ef8
Reviewed-by: Timo Jyrinki <timo.jyrinki@iki.fi>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/dbus/qdbusconnection_p.h b/src/dbus/qdbusconnection_p.h
index fff9f29b03..d16cd05058 100644
--- a/src/dbus/qdbusconnection_p.h
+++ b/src/dbus/qdbusconnection_p.h
@@ -375,6 +375,25 @@ extern QDBusMessage qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNod
                                      const QDBusMessage &msg);
 extern QDBusMessage qDBusPropertyGetAll(const QDBusConnectionPrivate::ObjectTreeNode &node,
                                         const QDBusMessage &msg);
+
+// can be replaced with a lambda in Qt 5.7
+class QDBusConnectionDispatchEnabler : public QObject
+{
+    Q_OBJECT
+    QDBusConnectionPrivate *con;
+public:
+    QDBusConnectionDispatchEnabler(QDBusConnectionPrivate *con) : con(con) {}
+
+public slots:
+    void execute()
+    {
+        con->setDispatchEnabled(true);
+        if (!con->ref.deref())
+            con->deleteLater();
+        deleteLater();
+    }
+};
+
 #endif // QT_BOOTSTRAPPED
 
 QT_END_NAMESPACE