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bug#8938: make timeout and CTRL-C

From: Pádraig Brady
Subject: bug#8938: make timeout and CTRL-C
Date: Sat, 02 Jul 2011 22:10:38 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv: Gecko/20100227 Thunderbird/3.0.3

On 02/07/11 19:36, shay shimony wrote:
>> With this patch the child is guaranteed to not be in the foreground (as far
>> as the tty knows) so it will be getting SIGTTIN and possibly SIGTTOU on tty
>> operations.
> You may need to correct me. In practice we see that the "timeouted"
> program perform successfully writes to the terminal, though it belongs
> to a different group then the foreground (in my case "make"'s group is
> in the foreground and timeout+compiler/test group is in the background,
> and all output of the compiler and test seem to appear correctly on the
> terminal). And regarding read, I think it makes sense enough that users
> will not use timeout for interactive programs that wait for input from
> the user.
> So maybe the fact that the timeouted program will not be able to get
> SIGTTIN and SIGTTOU is not such a disaster?

Whether output in a background group triggers SIGTTOU is configurable.
Also, in general a long running job might need input from the terminal at the 

So I think it would be too restrictive to disallow programs that
read from tty from being timed out.


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