mutex lock on persistence updates

[Dave Mason]

Hi,
I have an unusually simple question this time. :)  I use a subclass of 
MibLeaf for most of my Mib objects, and I have a method which overrides 
cleanup_set_request().  In there, I added some code that updates the 
persistent storage for the MibGroup that the object belongs to.  I 
havent stressed this agent too hard yet, but it occurred to me that if 
multiple managers are doing updates at the same time on objects in the 
same MibGroup, and both do persistence updates at the same time, could 
the persistence file be corrupted somehow?  Should I add a 
start_synch()/end_sync() around the persistence update?  In general, is 
that true anytime I update persistence myself?  I didnt see that 
happening in the toolkit anywhere.

Thanks,
Dave