void avahi_cache_update(AvahiCache *c, AvahiRecord *r, gboolean cache_flush, const AvahiAddress *a);
-void avahi_cache_dump(AvahiCache *c, FILE *f);
+void avahi_cache_dump(AvahiCache *c, AvahiDumpCallback callback, gpointer userdata);
typedef gpointer AvahiCacheWalkCallback(AvahiCache *c, AvahiKey *pattern, AvahiCacheEntry *e, gpointer userdata);
gpointer avahi_cache_walk(AvahiCache *c, AvahiKey *pattern, AvahiCacheWalkCallback cb, gpointer userdata);