libpq sockets on win32 - Mailing list pgsql-docs

From Jeff Johnson
Subject libpq sockets on win32
Date
Msg-id B9C9130B5D27D4119D5D00A0C9D3A98710945B@SERVER
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Responses Re: libpq sockets on win32  (Bruce Momjian <pgman@candle.pha.pa.us>)
List pgsql-docs
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 haven't done much C coding in a few years and don't want to break
other code by blindly doing:

#define errno WSAGetLastError

Does anyone that knows this code want to take a crack at it?

Thanks,
Jeff


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