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Subject: Re: fast/native fork?
To: cygwin AT cygwin DOT com
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From: Thomas Wolff <towo AT towo DOT net>
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Date: Sun, 21 Jan 2018 12:50:50 +0100
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Am 21.01.2018 um 11:56 schrieb Marco Atzeri:
> On 21/01/2018 16:32, Jay K wrote:
>>
>> I have some desire to discuss fork.
>> I know it is an old and difficult topic.
>>
>> I found this:
>>
>>   "Cygwin fork and RtlCloneUserProcess"
>>   https://social.msdn.microsoft.com/Forums/windowsdesktop/en-US/afdf1b68-1f3e-47f5-94cf-51e397afe073/cygwin-fork-and-rtlcloneuserprocess?forum=windowsgeneraldevelopmentissues
>>
>> NT has had fork since v1.
>> The Posix subsystem used it.
>
> If you look at the several Corinna's tentatives of having any info
> on the Microsoft forum the problem is the lack of official documentation
> of the details.
>
> Without details no solution can be implemented that is guaranteed
> to work on all existing and hopefully future version of Windows.
>
> Cygwin can only use official external API and not hidden internal one.
There was this mail from Microsoft, offering support in case Windows 10 
would raise console problems with cygwin:
https://cygwin.com/ml/cygwin/2015-04/msg00623.html
While this was particularly about the console, maybe this offer could be 
used for a request to provide official documentation of that system 
call, so it could then be used?
Thomas

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