+
+ // Attribute and QoS constants; higher QOS values with the same prefix rank higher...
+ // Medium attributes constants related to emulation or media type
+ const ATTR_EMULATION = 1;
+ const QOS_EMULATION_SQL = 1;
+ // Generic "unknown" value that is useful for comparisons (e.g. always good enough)
+ const QOS_UNKNOWN = INF;