Bruce writes:
...
> if a DDX-aware application calls
> DBINFO mode 205, discovers that there really ought to be room, and starts
> its updates, it's no less susceptable to the out-of-disc-space failure than
> the DDX-ignorant application that gets the right answer from the
> hypothetical changed DBINFO mode 202.
 
Ah, but the application programmer *knows* that an out-of-disc-space during
expansion is possible ... and the application's design should take that
into account.
 
If the application positively, absolutely wants to enter "all or none",
it can do today:
 
      DBXBEGIN
      DBLOCK
      DBINFO 202.
      If enough, put them all
      If not enough, DBINFO 205
         If enough:
            put dummy entries;
            if success, delete them and put real entries
            else complain and backout.
      DBXEND
 
NOTE: I've not written an application that does the above, but at least
it is possible!
 
--
Stan Sieler                                          [log in to unmask]
                                     http://www.allegro.com/sieler.html