From: Eli Zaretskii <eliz@gnu.org>
To: Christian Johansson <christian@cvj.se>
Cc: 37480@debbugs.gnu.org
Subject: bug#37480: 27.0.50; uncaught exception
Date: Sun, 22 Sep 2019 17:50:25 +0300 [thread overview]
Message-ID: <838sqgqtam.fsf@gnu.org> (raw)
In-Reply-To: <ba051ab5-38f4-948a-bd5b-45f7abff37e8@cvj.se> (message from Christian Johansson on Sun, 22 Sep 2019 16:00:38 +0200)
> From: Christian Johansson <christian@cvj.se>
> Date: Sun, 22 Sep 2019 16:00:38 +0200
>
> I want to handle errors occurring in asynchronous threads like in this
> example, is it possible?
For some value of "possible". From the ELisp manual:
When code run by a thread signals an error that is unhandled, the
thread exits. Other threads can access the error form which caused the
thread to exit using the following function.
-- Function: thread-last-error
This function returns the last error form recorded when a thread
exited due to an error. Each thread that exits abnormally
overwrites the form stored by the previous thread’s error with a
new value, so only the last one can be accessed.
> (make-thread
> (lambda()
> (message "Start of asynchronous thread")
> (signal 'error '("Fatal error"))
> (message "End of asynchronous thread")))
I'm not sure I understand what you tried to accomplish with this code.
It doesn't seem to handle errors in any way. Could you explain what
you are trying to do?
next prev parent reply other threads:[~2019-09-22 14:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-22 14:00 bug#37480: 27.0.50; uncaught exception Christian Johansson
2019-09-22 14:50 ` Eli Zaretskii [this message]
2019-09-22 15:26 ` Christian Johansson
2019-09-22 15:39 ` Eli Zaretskii
2019-09-23 5:18 ` Christian Johansson
2019-09-23 7:14 ` Michael Albinus
2019-09-23 16:37 ` Eli Zaretskii
2019-09-24 3:16 ` Christian Johansson
2019-09-22 16:53 ` Michael Albinus
2019-11-07 4:25 ` Stefan Kangas
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