GNU bug report logs - #65837
30.0.50; Debugger in non-main threads

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From: Helmut Eller <eller.helmut <at> gmail.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 65837 <at> debbugs.gnu.org
Subject: bug#65837: 30.0.50; Debugger in non-main threads
Date: Sat, 09 Sep 2023 17:35:22 +0200

On Sat, Sep 09 2023, Eli Zaretskii wrote:

> AFAIR, it is not trivial to improve
> the thread error handling significantly, but patches are welcome, of
> course.

Is there a design/plan for how recursive-edit is supposed to work in
non-main threads?

E.g. some options that come to mind:

1) It should be allowed without restriction (what currently seems to be
happening).

2) There should be some locking/multiplexing scheme so that only some
"foreground thread" is allowed to read events from the keyboard.

3) Only the main thread is allowed to call recursive-edit; all other
threads have to communicate with the main thread in some way.  (Maybe
there should be one thread per terminal that runs a command loop, but
that's an exotic detail.)

Helmut

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