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Re: SIGINT handling


From: Chet Ramey
Subject: Re: SIGINT handling
Date: Mon, 21 Sep 2015 15:34:28 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.2.0

On 9/21/15 5:48 AM, Stephane Chazelas wrote:

> I'm not sure I prefer that WCE approach over WUE. Wouldn't it be
> preferable that applications that intercept SIGINT/QUIT/TSTP for
> anything other than clean-up before exit/suspend implement job
> control themselves instead (like vi's :! should create a process
> group and make that the foreground process group of the
> terminal so pressing ^C in sh -c vi, :!sleep 10, only sends the
> SIGINT to sleep)?

The classic example is emacs remapping the terminal intr key to ^G
and using SIGINT as its internal abort-command signal.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/



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