Overview: Add Event Groups:
set g1 [new EventGroup $ns] $g1 add $link0 $link1 $ns at 60.0 "$g1 down" See the new advanced tutorial section on event groups for a better example. Changed tbreport to dump the event groups table when in summary mode. At the same time, I changed tbreport to use the recently added virt_lans:vnode and ip slots, decprecating virt_nodes:ips in one more place. I also changed the web interface to always dump the event and event group summaries. The parser gets a new file (event.tcl), and the "at" method deals with event group events by expanding them inline into individual events sent to each member. For some agents, this is unavoidable; traffic generators get the initial params in the event, so it is not possible to send a single event to all members of the group. Same goes for program objects, although program objects do default to the initial command now, at least on new images. Changed the event scheduler to load the event groups table. The current operation is that the scheduler expands events sent to a group, into a set of distinct events sent to each member of the group. At some point we proably want to optimize this by telling the agents (running on the nodes) what groups they are members of. Other News: Added a "mustdelay" slot to the virt_lans table so the parser can tell assign_wrapper that a link needs to be delayed, say if there are events or if the link is red/gred. Previously, assign_wrapper tried to figure this out by looking at the event list, etc. I have removed that code; see database-migrate for instructions on how to initialize this slot in existing experiments. assign_wrapper is free to ignore or insert delays anyway, but having the parser do this makes more sense. I also made some "rename" changes to the parser wrt queues and lans and links. Not really necessary, but I got sidetracked (for several hours!) trying to understand that rename stuff a little better, and now I do.