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Re: C-g crash redux

From: David Kastrup
Subject: Re: C-g crash redux
Date: Sat, 05 Aug 2006 07:45:41 +0200
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux)

address@hidden (Kim F. Storm) writes:

> Nick Roberts <address@hidden> writes:
>>  > The previous code suggestion I gave was not well thought out.  The
>>  > correct way to implement this is as follows.  I've checked that with
>>  > this change, the addition of wait_reading_process_output_unwind does
>>  > not cause a crash when C-g is done during sit-for.
>>  > 
>>  > Do you think this is the right approach?
> Clever!  Yes.  
>>  >... 
>> It looks good to my inexperienced eye, but Emacs seems to go for a long time
>> before hitting Fsignal.  I wonder if Fsignal resets other things that might 
>> not
>> add up in the interim period but I don't know what the rules are for placing
>> the QUIT macro or whether one could be placed closer to read_char.
> I don't follow this argument.  
> Since the purpose of setting waiting_for_input is for emacs to produce
> C-g, it depends on the key binding whether Fsignal is ever called.

There is no situation on a tty or on any platform where this is done
by signal directly?  And it does not depend on SYNC_INPUT?

While I have no clue about the situation, those are two keywords that
pop up in my head.

David Kastrup, Kriemhildstr. 15, 44793 Bochum

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