1 files changed, 12 insertions, 0 deletions
diff --git a/src/client/qwaylanddisplay_p.h b/src/client/qwaylanddisplay_p.h
index a52c89fe..188e9131 100644
--- a/src/client/qwaylanddisplay_p.h
+++ b/src/client/qwaylanddisplay_p.h
@@ -55,6 +55,8 @@
 #include <QtCore/QRect>
 #include <QtCore/QPointer>
 #include <QtCore/QVector>
+#include <QtCore/QMutex>
+#include <QtCore/QReadWriteLock>
 
 #include <QtCore/QWaitCondition>
 #include <QtCore/QLoggingCategory>
@@ -118,6 +120,12 @@ class Q_WAYLAND_CLIENT_EXPORT QWaylandDisplay : public QObject, public QtWayland
     Q_OBJECT
 
 public:
+    struct FrameQueue {
+        FrameQueue(wl_event_queue *q = nullptr) : queue(q), mutex(new QMutex) {}
+        wl_event_queue *queue;
+        QMutex *mutex;
+    };
+
     QWaylandDisplay(QWaylandIntegration *waylandIntegration);
     ~QWaylandDisplay(void) override;
 
@@ -205,6 +213,8 @@ public:
     void handleWindowDestroyed(QWaylandWindow *window);
 
     wl_event_queue *createEventQueue();
+    FrameQueue createFrameQueue();
+    void destroyFrameQueue(const FrameQueue &q);
     void dispatchQueueWhile(wl_event_queue *queue, std::function<bool()> condition, int timeout = -1);
 
 public slots:
@@ -266,8 +276,10 @@ private:
     QPointer<QWaylandWindow> mLastInputWindow;
     QPointer<QWaylandWindow> mLastKeyboardFocus;
     QVector<QWaylandWindow *> mActiveWindows;
+    QVector<FrameQueue> mExternalQueues;
     struct wl_callback *mSyncCallback = nullptr;
     static const wl_callback_listener syncCallbackListener;
+    QReadWriteLock m_frameQueueLock;
 
     bool mClientSideInputContextRequested = !QPlatformInputContextFactory::requested().isNull();
     bool mUsingInputContextFromCompositor = false;