Create a timer to wait for system to free resources

Reviewers: stikonas

Reviewed By: stikonas

Differential Revision: https://phabricator.kde.org/D21696

src/util/externalcommand.cpp

@@ -119,13 +119,12 @@ void ExternalCommand::setup()
 */
 bool ExternalCommand::start(int timeout)
 {
-    Q_UNUSED(timeout)
-
     if (command().isEmpty())
         return false;
 
     if (!QDBusConnection::systemBus().isConnected()) {
         qWarning() << QDBusConnection::systemBus().lastError().message();
+        QTimer::singleShot(timeout, this, &ExternalCommand::quit);
         return false;
     }
 
@@ -168,6 +167,8 @@ bool ExternalCommand::start(int timeout)
     connect(watcher, &QDBusPendingCallWatcher::finished, exitLoop);
     loop.exec();
 
+    QTimer::singleShot(timeout, this, &ExternalCommand::quit);
+
     return rval;
 }
 
@@ -339,6 +340,12 @@ void ExternalCommand::setExitCode(int i)
     d->m_ExitCode = i;
 }
 
+/**< Dummy function for QTimer when needed. */
+void ExternalCommand::quit()
+{
+    
+}
+
 bool ExternalCommand::startHelper()
 {
     if (!QDBusConnection::systemBus().isConnected()) {

src/util/externalcommand.h

@@ -104,6 +104,9 @@ public:
 
     void emitReport(const QVariantMap& report) { emit reportSignal(report); }
 
+    /**< Dummy function for QTimer when needed. */
+    void quit();
+    
     // KAuth
     /**< start ExternalCommand Helper */
     bool startHelper();