Optimize: Use property-indices instead of names for notifications.

This reduces the traffic as the indices are usually much smaller than
the property names.

As such, the benchPropertyUpdates gets a speed boost of about 9% (or
10ms vs. 11ms). As we need to transmit the index during initialization
that degrades its performance slightly by ca. 4% (13ms vs. 12.5ms).

Considering that the initialization only takes place once whereas
the property updates potentially often, this is a good tradeoff.

Change-Id: If7df3e360f1528b7d7aa26c63ce851363ae9fd6a
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/webchannel/qmetaobjectpublisher_p.h b/src/webchannel/qmetaobjectpublisher_p.h
index 969421a..4df5b38 100644
--- a/src/webchannel/qmetaobjectpublisher_p.h
+++ b/src/webchannel/qmetaobjectpublisher_p.h
@@ -153,9 +153,9 @@ struct Q_WEBCHANNEL_EXPORT QMetaObjectPublisherPrivate
     // Map the registered objects to their id.
     QHash<const QObject *, QString> registeredObjectIds;
 
-    // Map of object names to maps of signal indices to a set of all their properties.
+    // Map of objects to maps of signal indices to a set of all their property indices.
     // The last value is a set as a signal can be the notify signal of multiple properties.
-    typedef QHash<int, QSet<QString> > SignalToPropertyNameMap;
+    typedef QHash<int, QSet<int> > SignalToPropertyNameMap;
     QHash<const QObject *, SignalToPropertyNameMap> signalToPropertyMap;
 
     // Objects that changed their properties and are waiting for idle client.