On 08/11/2011 11:39 PM, Mark Roos wrote:
As I start to look at the multithreading aspects of the Smalltalk
implementation I can see a situation where
two threads could be running down the GWT lookup path both looking for
the same implementation. I was
thinking of making the lookup synchronized but then what if two
threads are in the GWT pipeline looking for the
same implementation. One gets to the lookup first and finds the
method. Now is it possible that the second thread
had entered the call site but is suspended between the site and the
lookup? In that case the lookup will have been
done but the second thread has passed the GWT for it (its added to the
start).
I am thinking that I may just accept the fact that there could be
duplicate GWTs in the chain. Or is there a better
approach?
Yes, you can have duplicate GWTs and
I'm also interested if someone find a better approach :)
Thanks
mark
cheers,
Rémi
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