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Re: "tcsetattr: Interrupted system call" after rapid-fire ^C chars


From: Chet Ramey
Subject: Re: "tcsetattr: Interrupted system call" after rapid-fire ^C chars
Date: Tue, 14 Oct 2008 22:47:15 -0400
User-agent: Thunderbird 2.0.0.17 (Macintosh/20080914)

Joe Peterson wrote:

>         Well, without a hacked kernel, you'll probably not hit
>         *this* manifestation of the issue, but what I did was:
> 
>         - run a text processing program (like "cat" or "tr")
>         - hit ctrl-S
>         - enter lots of text that will then produce lots of output
>         - hold down ctrl-C until the error is produced
> 
> Fix:
>         Should interrupts be trapped during call to tcsetattr()?

I don't think so.  Readline already blocks interrupts when it calls
tcsetattr, and bash handles that call returning -1/EINTR appropriately.

Chet


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer

Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/




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