Re: Ctrl+C doesn't interrupt process waiting for I/O

[David Newall <davidn@davidnewall.com>]

Török Edwin wrote:
> David Newall wrote:
>   
>> Elias Oltmanns wrote:
>>   
>>     
>>> -			if (!L_NOFLSH(tty)) {
>>> -				n_tty_flush_buffer(tty);
>>> -				tty_driver_flush_buffer(tty);
>>> -			}
>>>  			if (L_ECHO(tty))
>>>  				echo_char(c, tty);
>>> -			if (tty->pgrp)
>>> -				kill_pgrp(tty->pgrp, signal, 1);
>>> +			isig(signal, tty, 0);
>>>     
>>>       
>> My first reaction is that tty->pgrp must be null.  Perhaps the patch
>> could be simplified...
>>
>>  			if (tty->pgrp)
>>  				kill_pgrp(tty->pgrp, signal, 1);
>> +			else
>> +				isig(signal, tty, 0);
>>
>>
>> Thoughts?
>>   
>>     
>
> isig has the same check, if it is NULL, isig won't deliver the signal
> either
>   

That is odd.  We did see the control-key echoed, so, other than not
flushing output, what's funcitonally different?