[Stackless] Debugging

Christian Tismer tismer at tismer.com
Sat Feb 22 22:14:12 CET 2003


Konrad Hinsen wrote:
...

> At first glance it looks as if everything was there. What I want to do is to 
> be able to inspect variables in tasklets that are blocked in channel 
> receives. It should be possible to get a reference to the stack frame just 
> before the tasklet goes to sleep by installing a channel callback. At the end 
> of a BSP superstep (one computation/communication cycle), a debugger would 
> then have access to all the stack frames of all (virtual) processes.

Well, if you know the channels where your tasklets block
upon, you can do it after the fact:
Walk the channel's queue attribute, which is a circular
list of all waiting tasklets chained together, through
a "next" and "prev" attribute.
Every tasklet has a frame atribute, where you can
get at the current frame at sleeping time.

ciao - chris
-- 
Christian Tismer             :^)   <mailto:tismer at tismer.com>
Mission Impossible 5oftware  :     Have a break! Take a ride on Python's
Johannes-Niemeyer-Weg 9a     :    *Starship* http://starship.python.net/
14109 Berlin                 :     PGP key -> http://wwwkeys.pgp.net/
work +49 30 89 09 53 34  home +49 30 802 86 56  pager +49 173 24 18 776
PGP 0x57F3BF04       9064 F4E1 D754 C2FF 1619  305B C09C 5A3B 57F3 BF04
      whom do you want to sponsor today?   http://www.stackless.com/


_______________________________________________
Stackless mailing list
Stackless at www.tismer.com
http://www.tismer.com/mailman/listinfo/stackless




More information about the Stackless mailing list