Dataset helper handler

Hey,
 
1) If a sub-agent registered a dataset, does the request handling occur
in the Master or the Sub agent? (I guess the sub agent)
    (in general all handlers registered from sub-agents, are called
within the sub-agent. right?)
 
2) How does a sub-agent (which registered a dataset) maintain the
dataset during run-time?
    2a) Can it use the Data Set API: Table maintenance, from
Table_dataset.c?
    2b) If so, then I guess the dataset table is not thread-safe, and
the subagent cannot use a different thread to maintain the dataset
table.
 

Erez Makavy