about ST.tcl

[Shuqian YAN <syan@comm.toronto.edu>]

Hello Yuri,

In the ST.tcl script, where the ST::leave-group{ } is defined, you simply 
issue an send-prune upstream, seems you are assuming the node who leave 
the group is a leaf-node? what happens if there is some downstream 
receivers still alive? should you do a check at the replicator object to 
see it is still active? actually this is what you did in BST.tcl. What is 
the difference then for these two cases as far as leave-group concerned?

Tks,

shuqian