From: | Björn Lundin <bjorn(dot)lundin(at)swipnet(dot)se> |
---|---|
To: | pgsql-interfaces(at)postgresql(dot)org |
Subject: | Re: determining if there's a transaction in progress |
Date: | 2002-08-19 08:54:58 |
Message-ID: | ajqbnu$25ma$1@news.hub.org |
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Lists: | pgsql-interfaces |
Warren W. Gay VE3WWG wrote:
<cut>
> I too could benefit from a libpq feature that indicates if a transaction
> is pending. This
> helps in determining in a destructor (or Ada finalization) whether the
> default action
> to rollback/commit is necessary (rather than depend upon the server
> default action).
> Assuming it is always necessary is clumsy, and imposes unnecessary
> overhead in
> situations where a transaction may not be in progress.
</cut>
In Ada, you could keep track of transaction state in a package.
Put 'start_trans', 'commit' and 'rollback' procedures that changes the
transaction state accordingly. You'll then need a function
'trans_in_progress' to check it
Example at http://home.swipnet.se/lundin/ada_95_tools.html
/Bjrn
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