MAP_EXPIRY_KEY
key.dsize = strlen(MAP_EXPIRY_KEY);
key.dptr = MAP_EXPIRY_KEY;
key.dsize = strlen(MAP_EXPIRY_KEY);
key.dptr = MAP_EXPIRY_KEY;
if ((key->dsize == strlen(MAP_EXPIRY_KEY)) &&
(0 == strncmp(key->dptr, MAP_EXPIRY_KEY, key->dsize))) {
MAP_EXPIRY_KEY, map->map_name);