func (h *nodeLeftHandler) Rcv(msg bh.Msg, ctx bh.RcvContext) error {
n := nom.Node(msg.Data().(nom.NodeLeft))
d := ctx.Dict(nodeDict)
k := string(n.UID())
if _, err := d.Get(k); err != nil {
return fmt.Errorf("%v is not joined", n)
}
d.Del(k)
return nil
}
func (h *nodeJoinedHandler) Rcv(msg bh.Msg, ctx bh.RcvContext) error {
joined := msg.Data().(nom.NodeJoined)
d := ctx.Dict(nodeDict)
n := nom.Node(joined)
k := string(n.UID())
var np nodePortsAndLinks
if v, err := d.Get(k); err != nil {
glog.Warningf("%v rejoins", n)
} else {
np = v.(nodePortsAndLinks)
}
np.N = n
// TODO(soheil): Add a flow entry to forward lldp packets to the controller.
return d.Put(k, np)
}
func (h *nodeJoinedHandler) Map(msg bh.Msg, ctx bh.MapContext) bh.MappedCells {
return bh.MappedCells{
{nodeDict, string(nom.Node(msg.Data().(nom.NodeJoined)).UID())},
}
}
func (a Adder) Rcv(msg bh.Msg, ctx bh.RcvContext) error {
joined := msg.Data().(nom.NodeJoined)
return ctx.Dict("Switches").Put(string(nom.Node(joined).UID()), []flow{})
}