void avahi_cache_dump(AvahiCache *c, FILE *f);
typedef gpointer AvahiCacheWalkCallback(AvahiCache *c, AvahiKey *pattern, AvahiCacheEntry *e, gpointer userdata);
void avahi_cache_dump(AvahiCache *c, FILE *f);
typedef gpointer AvahiCacheWalkCallback(AvahiCache *c, AvahiKey *pattern, AvahiCacheEntry *e, gpointer userdata);