Tracking: BCAST: basic feature now works.

src/server.c

@@ -2124,6 +2124,10 @@ void beforeSleep(struct aeEventLoop *eventLoop) {
     if (listLength(server.unblocked_clients))
         processUnblockedClients();
 
+    /* Send the invalidation messages to clients participating to the
+     * client side caching protocol in broadcasting (BCAST) mode. */
+    trackingBroadcastInvalidationMessages();
+
     /* Write the AOF buffer on disk */
     flushAppendOnlyFile(0);