[R-SIG-Mac] hang on use of ESC in R 2.6.2

[Simon Urbanek]

Charles,

thanks a lot for the example. I have now fixed this issue in the  
current GUI. Please download and test the updated GUI tomorrow from
http://r.research.att.com/

Thanks,
Simon


On Feb 12, 2008, at 10:43 AM, Charles Hebert wrote:

>> If R is stuck in a long computation in C code that doesn't call
>> R_ProcessEvents, we're helpless. There is no way to stop that code
>> until it finishes. Even if you press <Esc> it may not help (just give
>> you the beachball), because the event of you pressing <Esc> must  
>> first
>> be processed so it can fire,
>
> Command :
>
> rnorm(10000)
> then I press <Esc>
>
> reproduced the problem. It's not link to the computational time.
>
> Best regards, C.
>
> ~~
>
> Mac Intel - OS 10.5.1 / 10.5.2
>
>> sessionInfo()
> R version 2.6.2 (2008-02-08)
> i386-apple-darwin8.10.1
>
> locale:
> fr_FR.UTF-8/fr_FR.UTF-8/fr_FR.UTF-8/C/fr_FR.UTF-8/fr_FR.UTF-8
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
>> desire so to find out what R is doing.
>> To do so, start a Terminal (in parallel to your unresponsive R) and
>> type:
>> gdb
>> attach R
>>
>> That should get you into the R process that is spinning. Now you can
>> issue
>> bt
>> to see where it really is. Very likely it will be somewhere is the
>> package performing the computation. But if it's not, then we want to
>> know.
>>
>> Anyway, I suspect that this is not really something we can do much
>> about (in the current GUI). The new GUI 2.0 is running R in a  
>> separate
>> thread, so it is always responsive despite R being busy, hence we can
>> deal better with unresponsive R there.
>>
>> Cheers,
>> Simon
>>
>> On Feb 10, 2008, at 10:53 AM, Ken Knoblauch wrote:
>>
>>> Hi,
>>>
>>> I notice with R 2.6.2 on a powerpc and on a MacBook Pro that if I
>>> hit ESC to
>>> annul running a line in the GUI, input hangs with the spinning beach
>>> ball
>>> for an indefinite period of time.  I haven't tried to see how long
>>> it will
>>> hang, but
>>> it is at least several minutes too long.  Checking Force Quit
>>> indicates that
>>> R is not responding.
>>>
>>> On the power pc, w/ Tiger (but the same thing happens on my Intel
>>> Mac w/
>>> Leopard)
>>> sessionInfo()
>>> R version 2.6.2 (2008-02-08)
>>> powerpc-apple-darwin8.10.1
>>>
>>> locale:
>>> en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
>>>
>>> attached base packages:
>>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>>
>>>
>>> Thanks.
>>>
>>> best,
>>>
>>> Ken
>
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