Re: [INTERFACES] libpq sockets on win32

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: jeff(at)jeffjohnson(dot)net
Cc: pgsql-interfaces(at)postgresql(dot)org, pgsql-docs(at)postgresql(dot)org
Subject: Re: [INTERFACES] libpq sockets on win32
Date: 2001-06-04 17:53:53
Message-ID: 200106041753.f54HrrU27542@candle.pha.pa.us
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> I found that sending more than 16k of data in a SQL statement caused a
> problem. I was using PyGreSQL but narrowed the error down to
> "\postgresql-7.1.2\src\interfaces\libpq\fe-misc.c" pqReadData() and
> pqFlush(). After some poking around, it looked like recv was setting
> errno to ENOENT for some reason. I figured out why today. Win32
> sockets don't set errno at all. ENOENT was just left in errno from
> some earlier call.
>
> This article describes the problem and work around.
> http://msdn.microsoft.com/library/psdk/winsock/ovrvw3_26ia.htm

I can't read that web site under Netscape.

> I haven't done much C coding in a few years and don't want to break
> other code by blindly doing:
>
> #define errno WSAGetLastError

If I could read it, I think I could fix it. Please send it in some
readable format.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026

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