transaction aborts in SPI

I've appended a quote from Ch 41 on the SPI; I'd like
to make sure I understand the implications of this. If
I've allocated resources inside my procedure (file
handles or what-not), how would I clean those up in
the case of a transaction abort? Could I Notify my
application that the transaction aborted (IIUC they
aren't sent in the case of a transaction abort)?

thanks!
--craig

Note that if during the execution of a procedure the
transaction is aborted because of an error in a
command, then control will not be returned to your
procedure. Rather, all work will be rolled back and
the server will wait for the next command from the
client. A related restriction is the inability to
execute BEGIN, COMMIT, and ROLLBACK (transaction
control statements) inside a procedure. Both of these
restrictions will probably be changed in the future.

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