2012/11/13 Corinna Vinschen <[email protected]>:
> On Nov 13 13:09, Ozkan Sezer wrote:
>> On Tue, Nov 13, 2012 at 1:03 PM, Corinna Vinschen <[email protected]> 
>> wrote:
>> > On Nov 13 12:17, Ozkan Sezer wrote:
>> >> On Tue, Nov 13, 2012 at 12:01 PM, Corinna Vinschen <[email protected]> 
>> >> wrote:
>> >> > On Nov 13 09:21, Kai Tietz wrote:
>> >> >> Hi,2222222278
>> >> >>
>> >> >> 2012/11/12 Corinna Vinschen <[email protected]>:
>> >> >> > Hi,
>> >> >> >
>> >> >> > the below patch fixes the definitions of SYSTEM_BASIC_INFORMATION and
>> >> >> > adds a definition of SYSTEM_PAGEFILE_INFORMATION and
>> >> >> > SystemPagefileInformation.  It also changes the formatting of
>> >> >> > SYSTEM_INFORMATION_CLASS to make it a bit more readable.  Tested on 
>> >> >> > 32
>> >> >> > and 64 bit.
>> >> >> >
>> >> >> > Ok to apply?
>> >> >>
>> >> >> Ok, thanks.  Please apply.
>> >> >
>> >> > Thanks, done.
>> >> >
>> >>
>> >> AFAIK, winternl.h doesn't expose SYSTEM_BASIC_INFORMATION details
>> >> for the reserved fields.  Also see:
>> >> http://msdn.microsoft.com/en-us/library/windows/desktop/ms724509%28v=vs.85%29.aspx
>> >> Where did we retrieve those detail in the first place before even
>> >> correcting them?  Of course there are user contributed stuff on
>> >> social.msdn.com, like:
>> >> http://social.msdn.microsoft.com/Forums/en-US/windowssdk/thread/2c1f05d0-b764-475d-8e84-83c2d8a81795/
>> >> ... but how wise is it to include such things in our headers?
>> >
>> > As I wrote in my OP, I tested the stuff on 32 and 64 bit systems using
>> > my very own, self-written testcase.  Given that SYSTEM_BASIC_INFORMATION
>> > was already fully available in winternl.h,
>>
>> This ...
>>
>> >  and given that the only
>> > change I made was to change the data types to match 64 bit, and given
>> > that I tested the result for consistency, I don't quite see your point...
>> >
>>
>> ... is my point: I don't have an objection againt your correction, I have
>> an objection against its full form being present in the first place.
>
> So you want to keep winternl.h as close to upstream as possible, thus
> removing already available (and tested) definitions?  Personally I don't
> think it makes a lot of sense to keep a "Reserved1" field intact, just
> because it's not documented.  Nobody *has* to use the undocumented
> fields, after all.
>
> Anyway, that means the idea to move the (used and tested) definitions
> from Cygwin to Mingw64 is moot.

Well, I would welcome it as long as fields are proven OS-idependent or
showing real use-cases in applications using our winternl header.  And
I think that cygwin as user is a vaild case, isn't it?

But I strongly agree to Ozkan that we don't want to have
NDK-definitions here.  At least for now I see the burden to test all
cases as not sensible ... but well, I might be wrong

> Alternatively, what about having two definitions for each datatype?  One
> of them the default, close to the MS definition, the other one if you
> define __WINTERNL_ENABLE_UNDOCUMENTED.  This would also guard the
> officially entirely undocumented datastructures.

Hmm, this sounds like a nice idea.  But I would think that it might be
better to have a switch which forces MS' PSDK mode and having
extensions enables by default - at least as long as normal use-case is
unaffected by it and our users might have an advantage by it.

Regards,
Kai

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