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From: "Dave Korn" <dave DOT korn AT artimi DOT com>
To: <cygwin AT cygwin DOT com>
Subject: RE: Trouble with DLL and file (com port) IO
Date: Thu, 7 Dec 2006 16:07:52 -0000
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On 07 December 2006 15:54, R. Steve McKown wrote:

> On Wednesday 06 December 2006 03:13 pm, Dave Korn wrote:
>> On 06 December 2006 17:01, R. Steve McKown wrote:
>>> Th extension accepts a file descriptor to an open serial port, uses the
>>> cygwin get_osfhandle() function to get the corresponding HANDLE, calls
>>> the DLL function, then returns.  When run, python core dumps somewhere
>>> between ...
>> 
>>   Go research what those decorations actually signify.  Here's some terms
>> to help get you started at Google:  cdecl, stdcall, fastcall.  Actually,
>> nevermind google, you may as well go straight to MSDN.
> 
> The dll header file defines the functions using the WINAPI definition, which
> appears to map to __stdcall, so I thought the compiler already had the right
> information in this regard.  I'll research over at MSDN; thank you.

  It's about a hundred-to-one on that what's going on here is a disagreement
between caller and callee about whose job it is to clean up the stack.

>>   The only other obvious mistake was spamming everyone on the list with a
>> couple of hundred kb of completely useless crud ...
> 
> I posted an apology and a correction within 10 minutes after posting an
> attachment containing build products, which caused its massive size.  I
> can't blame you for busting my chops anyway; it was a bone-headed oversight.

  For the avoidance of doubt: that paragraph was meant to be read to oneself
whilst imagining a bemused tone of voice, rather than a harsh and aggressive
one.

  However, if you do it again, I'll drop a hippo on you!


    cheers,
      DaveK
-- 
Can't think of a witty .sigline today....


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