intatSaveCache (Af_key *aso, Af_key *cachedAso, char *uniqAttribute, int storeType);
char*atCacheKey (Af_key *aso);
DESCRIPTION
atSaveCache adds the given busy object aso to the current
derived object cache. It does this by calling af_savecache (manual
page af_cache(3)). Prior to that, atSaveCache attaches a key attribute
with the name __CacheKey__ to aso, by which the resulting
cached object can be uniquely identified within the cache. Return
values are the same as from af_savecache (manual page af_cache(3)).
atCacheKey returns an attribute string consisting of the
attribute name __CacheKey__ and an attribute value built of the
aso modification date, the process number and a (per process
unique) serial number. This attribute can (and will) be used to
uniquely identify attributed software objects in derived object
caches.