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Re: Minor fix in lwlock.c

From: "Qingqing Zhou" <zhouqq(at)cs(dot)toronto(dot)edu>
To: pgsql-patches(at)postgresql(dot)org
Subject: Re: Minor fix in lwlock.c
Date: 2005-04-08 05:29:15
Message-ID: d354v5$2gju$1@news.hub.org (view raw or flat)
Thread:
Lists: pgsql-patches
"Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes>
> The alternative would be to move the Unlock loop in front of the
> addition of the LWLock to held_lwlocks[], but I think that cure
> is probably worse than the disease --- the chance of an error during
> Unlock seems nonzero.
>

Another alternative might use PG_TRY/PG_CATCH to make sure that the
semaphore is released. But seems this costs too much ...

Regards,
Qingqing



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