[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

bug#24617: 26.0.50; Handlers in `condition-case' should have programmati

From: Clément Pit--Claudel
Subject: bug#24617: 26.0.50; Handlers in `condition-case' should have programmatic access to the backtrace
Date: Thu, 29 Dec 2016 15:02:53 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1

On 12/29/2016 10:01 AM, Helmut Eller wrote:
>>     Second, unconditionally copying the backtrace would be expensive
>> Are you sure about that?
> No, but I would be surprised if it were cheap.

Collecting the textual backtrace (by calling 'backtrace') can take arbitrarily 
long, because it includes arguments, which can be large strings. I've run into 
this (99% of the time was spent on collecting backtraces).

Collecting a full backtrace with backtrace-frame (as objects) is quadratic, but 
I don't know if that matters.  The master branch has mapbacktrace, which solves 
the quadratic part.


Attachment: signature.asc
Description: OpenPGP digital signature

reply via email to

[Prev in Thread] Current Thread [Next in Thread]