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bug#17036: Continuation for Emacs: invoking a process on exit?
From: |
Eli Zaretskii |
Subject: |
bug#17036: Continuation for Emacs: invoking a process on exit? |
Date: |
Wed, 19 Mar 2014 18:51:05 +0200 |
> Date: Wed, 19 Mar 2014 13:19:28 +0000
> From: Reuben Thomas <rrt@sc3d.org>
> Cc: Andreas Schwab <schwab@linux-m68k.org>, 17036@debbugs.gnu.org
>
> On 19 March 2014 13:10, Stefan <monnier@iro.umontreal.ca> wrote:
>
> > > I could imagine a `restart-emacs' command having some small utility.
> >
> > Could the w32 build support something like POSIX's `exec'?
>
>
> Windows has execvp... http://msdn.microsoft.com/en-us/library/3xw6zy53.aspx
Don't believe the sales people. MS's execvp is buggy, and even if we
forget about those bugs, it won't do what is expected here: it won't
keep the file descriptors open in the original process still open in
the overlaid process. That's because there's no 'exec' system call on
Windows, so execvp is _emulated_: the original process simply invokes
the new one as its child process, and then immediately exits.
So the answer to Stefan is: no, this cannot be done on Windows, not
without some custom code to let the re-executed Emacs inherit all of
the file descriptors which were open in the original Emacs process.
- bug#17036: Continuation for Emacs: invoking a process on exit?, Reuben Thomas, 2014/03/18
- bug#17036: Continuation for Emacs: invoking a process on exit?, Andreas Schwab, 2014/03/18
- bug#17036: Continuation for Emacs: invoking a process on exit?, Reuben Thomas, 2014/03/18
- bug#17036: Continuation for Emacs: invoking a process on exit?, Glenn Morris, 2014/03/19
- bug#17036: Continuation for Emacs: invoking a process on exit?, Stefan, 2014/03/19
- bug#17036: Continuation for Emacs: invoking a process on exit?, Reuben Thomas, 2014/03/19
- bug#17036: Continuation for Emacs: invoking a process on exit?,
Eli Zaretskii <=
- bug#17036: Continuation for Emacs: invoking a process on exit?, Reuben Thomas, 2014/03/19
- bug#17036: Continuation for Emacs: invoking a process on exit?, Eli Zaretskii, 2014/03/19
- bug#17036: Continuation for Emacs: invoking a process on exit?, Reuben Thomas, 2014/03/20
- bug#17036: Continuation for Emacs: invoking a process on exit?, Eli Zaretskii, 2014/03/20
- bug#17036: Continuation for Emacs: invoking a process on exit?, Reuben Thomas, 2014/03/20
- bug#17036: Continuation for Emacs: invoking a process on exit?, Eli Zaretskii, 2014/03/21
- bug#17036: Continuation for Emacs: invoking a process on exit?, Reuben Thomas, 2014/03/21
- bug#17036: Continuation for Emacs: invoking a process on exit?, Reuben Thomas, 2014/03/21
- bug#17036: Continuation for Emacs: invoking a process on exit?, Eli Zaretskii, 2014/03/21
- bug#17036: Continuation for Emacs: invoking a process on exit?, Reuben Thomas, 2014/03/21