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Subject: Re: fast/native fork?
To: cygwin@cygwin.com
References: <MWHPR18MB1214E3A077433426273EFE00E6ED0@MWHPR18MB1214.namprd18.prod.outlook.com>
From: Marco Atzeri <marco.atzeri@gmail.com>
Message-ID: <fc431653-5dc5-0297-591f-4c476c2eda0e@gmail.com>
Date: Sun, 21 Jan 2018 18:56:16 +0800
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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.

Regards
Marco


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