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Re: [PATCHES] win32 signals, part 5

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Magnus Hagander <mha(at)sollentuna(dot)net>
Cc: Neil Conway <neilc(at)samurai(dot)com>, pgsql-patches(at)postgresql(dot)org,pgsql-hackers-win32 <pgsql-hackers-win32(at)postgresql(dot)org>,Claudio Natoli <claudio(dot)natoli(at)memetrics(dot)com>
Subject: Re: [PATCHES] win32 signals, part 5
Date: 2004-02-09 21:43:28
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers-win32pgsql-patches
This patch has been applied by Neil.


Magnus Hagander wrote:
> >>> Taking into account Claudios comments on the previous patch, 
> >>as well as
> >>> some more fooling around here of my own, here's a fourth 
> >(and final?)
> >>> one.
> >
> >Actually, please hold just a second :-)
> >
> >I have an updated version of this patch that fixes the remaining small
> >issue (FATAL on failure to set the control handler). Will post later
> >tonight or early tomorrow.  Only veyr small changes, so if there are no
> >objections to this one, there shouldn't be to that one either.
> Here's the new one. Turns out I had already fixed the one part I thought
> I still had, so it was already ready.
> Changes since last patch:
> 1) Error messages in pgwin32_signal_initialize() are now all using
> ereport(). (Previously used fprintf to stderr, but I realised that this
> function executes on the main thread and can thus use ereport). The
> error for SetConsoleCtrlHandler() is now FATAL, per suggestion from
> Claudio.
> 2) Redefines CHECK_FOR_INTERRUPTS() on Win32 only, to include a call to
> WaitForSingleObjectEx(). This allows our signals to be delivered just
> before we check for their result. WIth this change, query cancel now
> works fine on win32. It's also possible to do an "administrator
> shutdown" on a backend that is running a query (previously only possible
> when the backend was idle)
> The rest is identical to patch _4.
> //Magnus
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  Bruce Momjian                        |
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