From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Thu, 16 Apr 2015 12:44:56 GMT
Subject: Re: [msysGit] [PATCH] compat/mingw: stubs for getpgid() and tcgetpgrp()
Message-ID: <fac9a525a2fb2b09d176243659cbf3a7@www.dscho.org>
In-Reply-To: <CABPQNSZ-7FAgun8mxqXYWgy+Xc9xQMXKZonwujXb5WzLCKmNMw@mail.gmail.com>

Hi kusma,

On 2015-04-15 21:43, Erik Faye-Lund wrote:
> On Wed, Apr 15, 2015 at 8:29 PM, Johannes Sixt <j6t@kdbg.org> wrote:
>> Windows does not have process groups. It is, therefore, the simplest
>> to pretend that each process is in its own process group.
> 
> Windows does have some concept of process groups, but probably not
> quite what you want:
> 
> https://msdn.microsoft.com/en-us/library/windows/desktop/ms682083%28v=vs.85%29.aspx

Yes, and we actually need that in Git for Windows anyway because shooting down a process does not kill its child processes:

https://github.com/git-for-windows/msys2-runtime/commit/15f209511985092588b171703e5046eba937b47b#diff-8753cda163376cee6c80aab11eb8701fR402

However, using this code for `getppid()` would be serious overkill (not to mention an unbearable performance hit because you have to enumerate *all* processes to get that information).

Ciao,
Dscho