Message-ID: <44ADAB35.5000805@netbauds.net>
Date: 	Fri, 07 Jul 2006 01:30:45 +0100
From: Darryl Miles <darryl-mailinglists AT netbauds DOT net>
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To: cygwin AT cygwin DOT com
Subject: Re: rsync over ssh hang issue understood
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Dave Korn wrote:
> On 06 July 2006 23:02, Darryl Miles wrote:
>> However according to MSDN this function is undocumented.  
> 
>   No, it's documented in the DDK these days.
> 
> http://msdn.microsoft.com/library/en-us/Kernel_r/hh/Kernel_r/k111_822ab812-a644-4574-8d89-c4ebf5b17ea5.xml.asp?frame=true
> 
> (ZwQueryInformationFile == NtQueryInformationFile)

Please explain the relevance for the uninitiated.

The Zw stuff looks like Device Drive APIs, where as we want 
Userspace/Application APIs.

There is no documented type for 
FILE_INFORMATION_CLASS=FilePipeLocalInformation in the Zw functions.

So my stance is still the same.  A MS rocket scientist is still 
necessary requirement to continue with the existing approach.  The 
rocket scientist will understand things that mere mortals wont :).


Maybe you are in a better position to share more insight into the 
situation (specifically about the use of NtQueryInformationFile in 
addressing the writability semantics of the POSIX select/poll/write 
event system).


Darryl

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