+ int globalUnreadBacklogLimit() const;
+ void setGlobalUnreadBacklogLimit(int limit);
+ int globalUnreadBacklogAdditional() const;
+ void setGlobalUnreadBacklogAdditional(int additional);
+
+ int perBufferUnreadBacklogLimit() const;
+ void setPerBufferUnreadBacklogLimit(int limit);
+ int perBufferUnreadBacklogAdditional() const;
+ void setPerBufferUnreadBacklogAdditional(int additional);
+};