network: drop now useless addrReq queue from the server

Just broadcast a high-priority message to everyone.

pkg/network/server.go

@@ -61,7 +61,6 @@ type (
 		lock  sync.RWMutex
 		peers map[Peer]bool
 
-		addrReq    chan *Message
 		register   chan Peer
 		unregister chan peerDrop
 		quit       chan struct{}
@@ -97,7 +96,6 @@ func NewServer(config ServerConfig, chain core.Blockchainer, log *zap.Logger) *S
 		bQueue:       newBlockQueue(maxBlockBatch, chain, log),
 		id:           randomID(),
 		quit:         make(chan struct{}),
-		addrReq:      make(chan *Message, config.MinPeers),
 		register:     make(chan Peer),
 		unregister:   make(chan peerDrop),
 		peers:        make(map[Peer]bool),
@@ -203,13 +201,7 @@ func (s *Server) run() {
 			s.discovery.RequestRemote(s.AttemptConnPeers)
 		}
 		if s.discovery.PoolCount() < minPoolCount {
-			select {
-			case s.addrReq <- s.MkMsg(CMDGetAddr, payload.NewNullPayload()):
-				// sent request
-			default:
-				// we have one in the queue already that is
-				// gonna be served by some worker when it's ready
-			}
+			s.broadcastHPMessage(s.MkMsg(CMDGetAddr, payload.NewNullPayload()))
 		}
 		select {
 		case <-s.quit:

pkg/network/tcp_peer.go

@@ -198,13 +198,6 @@ func (p *TCPPeer) StartProtocol() {
 		select {
 		case <-p.done:
 			return
-		case m := <-p.server.addrReq:
-			var pkt []byte
-
-			pkt, err = m.Bytes()
-			if err == nil {
-				err = p.EnqueueHPPacket(pkt)
-			}
 		case <-timer.C:
 			// Try to sync in headers and block with the peer if his block height is higher then ours.
 			if p.LastBlockIndex() > p.server.chain.BlockHeight() {