// NewBroadcastProtocol returns a new Broadcast protocol
func NewBroadcastProtocol(n *sda.TreeNodeInstance) (sda.ProtocolInstance, error) {
b := &Broadcast{
TreeNodeInstance: n,
tnIndex: -1,
}
for i, tn := range n.Tree().List() {
if tn.ID == n.TreeNode().ID {
b.tnIndex = i
}
}
if b.tnIndex == -1 {
return nil, errors.New("Didn't find my TreeNode in the Tree")
}
err := n.RegisterHandler(b.handleContactNodes)
if err != nil {
return nil, err
}
err = n.RegisterHandler(b.handleDone)
if err != nil {
return nil, err
}
return b, nil
}
