Help: Group based synchronize decorator

Vishal Shetye vishal_shetye at
Thu Jun 18 15:27:09 EDT 2009

I want to synchronize calls using rw locks per 'group' and my implementation is similar to
except that I have my own Lock implementation.

All my synchronized functions take 'whatGroup' as param. My lock considers 'group' while deciding on granting locks through acquire.

What I could come up with is:
- decorator knows(assumes) first param to decorated functions is always 'whatGroup'
- decorator passes this 'whatGroup' argument to my lock which is used in acquire logic.

Is it ok to make such assumptions in decorator?
Any suggestions/alternatives?

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