[PD] [comport] crashes on Windows

[Hans-Christoph Steiner]

On May 24, 2006, at 12:02 PM, Piotr Majdak wrote:

> Hi Hans,
>
> Hans-Christoph Steiner wrote:
>
>> I have incorporated the "OVERLAPPED" asynchronous mode code for   
>> Windows from Piotr Majdak in the [comport], and now it crashes  
>> pretty  regularly.  I just committed the comport-stress-test.pd,  
>> which makes  Pd crash within a couple minutes.  It seems to be  
>> caused by  transferring a lot of data from Pd to the serial port.   
>> FYI: I am  using an Arduino to test.
>
> We get a lot of data from serial port to pd and for this direction  
> [comport] works in the asynchronous mode. In the transmitting mode,  
> we send a few bytes only, so we did not any tests...
>
> I don't remember if I've changed anything in the transmitting  
> section of the code - I'll have a look ASAP.
>
> Can you send me your stress-the-comport patch per email? I'll give  
> it a try...

Its in CVS, in externals/iem/comport/comport/comport-stress-test.pd

It seems that only transmitting data from Pd to the comport causes  
the crashes.  Receiving at full speed seems to be no problem.

.hc

________________________________________________________________________ 
____

"Computer science is no more related to the computer than astronomy  
is related to the telescope."
                                                           -Edsger  
Dykstra