local_peer.go
func (peer *localPeer) actorLoop(actionChan <-chan localPeerAction) {
	gossipTimer := time.Tick(gossipInterval)
	for {
		select {
		case action := <-actionChan:
			action()
		case <-gossipTimer:
			peer.router.sendAllGossip()
		}
	}
}
func (peer *localPeer) actorLoop(actionChan <-chan localPeerAction) {
	gossipTimer := time.Tick(gossipInterval)
	for {
		select {
		case action := <-actionChan:
			action()
		case <-gossipTimer:
			peer.router.sendAllGossip()
		}
	}
}
// ACTOR server