sync 2

les/handler.go

@@ -95,7 +95,7 @@ type ProtocolManager struct {
 	server     *LesServer
 
 	downloader *downloader.Downloader
-	//fetcher    *fetcher.Fetcher
+	fetcher    *lightFetcher
 	peers *peerSet
 
 	SubProtocols []p2p.Protocol
@@ -171,6 +171,7 @@ func NewProtocolManager(chainConfig *core.ChainConfig, lightSync bool, networkId
 		manager.downloader = downloader.New(downloader.LightSync, chainDb, manager.eventMux, blockchain.HasHeader, nil, blockchain.GetHeaderByHash,
 			nil, blockchain.CurrentHeader, nil, nil, nil, blockchain.GetTdByHash,
 			blockchain.InsertHeaderChain, nil, nil, blockchain.Rollback, func(id string) {}) // manager.removePeer)
+		manager.fetcher = newLightFetcher(odr, blockchain)
 	}
 
 	/*validator := func(block *types.Block, parent *types.Block) error {
@@ -359,6 +360,9 @@ func (pm *ProtocolManager) handleMsg(p *peer) error {
 			return errResp(ErrDecode, "%v: %v", msg, err)
 		}
 fmt.Println("RECEIVED", req[0].Number, req[0].Hash, req[0].Td)
+		for _, r := range req {
+			pm.fetcher.notify(p, r)
+		}
 		
 	case GetBlockHeadersMsg:
 		glog.V(logger.Debug).Infof("LES: received GetBlockHeadersMsg from peer %v", p.id)
@@ -452,10 +456,14 @@ fmt.Println("RECEIVED", req[0].Number, req[0].Hash, req[0].Td)
 			return errResp(ErrDecode, "msg %v: %v", msg, err)
 		}
 		p.fcServer.GotReply(resp.ReqID, resp.BV)
+		if pm.fetcher.requestedID(resp.ReqID) {
+			pm.fetcher.deliverHeaders(resp.ReqID, resp.Headers)
+		} else {
 			err := pm.downloader.DeliverHeaders(p.id, resp.Headers)
 			if err != nil {
 				glog.V(logger.Debug).Infoln(err)
 			}
+		}
 
 	case GetBlockBodiesMsg:
 		glog.V(logger.Debug).Infof("LES: received GetBlockBodiesMsg from peer %v", p.id)
@@ -757,7 +765,7 @@ func (pm *ProtocolManager) broadcastBlockLoop() {
 fmt.Println("BROADCAST", number, hash, td)
 					announce := newBlockHashesData{{Hash: hash, Number: number, Td: td}}
 					for _, p := range peers {
-						go p.SendNewBlockHashes(announce)
+						p.SendNewBlockHashes(announce)
 					}
 				}
 			case <-pm.quitSync:

les/odr_test.go

@@ -191,7 +191,7 @@ func testOdr(t *testing.T, protocol int, expFail uint64, fn odrTestFn) {
 		t.Fatalf("peer 1 handshake error: %v", err)
 	}
 	
-	lpm.synchronise(lpeer, true)
+	lpm.synchronise(lpeer)
 
 	test := func(expFail uint64) {
 		for i := uint64(0); i <= pm.blockchain.CurrentHeader().GetNumberU64(); i++ {

les/protocol.go

@@ -124,7 +124,8 @@ type statusData struct {
 }
 
 // newBlockHashesData is the network packet for the block announcements.
-type newBlockHashesData []struct {
+type newBlockHashesData []newBlockHashData
+type newBlockHashData struct {
 	Hash   common.Hash // Hash of one particular block being announced
 	Number uint64      // Number of one particular block being announced
 	Td     *big.Int    // Total difficulty of one particular block being announced

les/request_test.go

@@ -63,7 +63,7 @@ func testAccess(t *testing.T, protocol int, fn accessTestFn) {
 		t.Fatalf("peer 1 handshake error: %v", err)
 	}
 	
-	lpm.synchronise(lpeer, true)
+	lpm.synchronise(lpeer)
 
 	test := func(expFail uint64) {
 		for i := uint64(0); i <= pm.blockchain.CurrentHeader().GetNumberU64(); i++ {

les/sync.go

@@ -44,11 +44,11 @@ func (pm *ProtocolManager) syncer() {
 			if pm.peers.Len() < minDesiredPeerCount {
 				break
 			}
-			go pm.synchronise(pm.peers.BestPeer(), false)
+			go pm.synchronise(pm.peers.BestPeer())
 
 		case <-forceSync:
 			// Force a sync even if not enough peers are present
-			go pm.synchronise(pm.peers.BestPeer(), false)
+			go pm.synchronise(pm.peers.BestPeer())
 
 		case <-pm.noMorePeers:
 			return
@@ -57,22 +57,17 @@ func (pm *ProtocolManager) syncer() {
 }
 
 // synchronise tries to sync up our local block chain with a remote peer.
-func (pm *ProtocolManager) synchronise(peer *peer, exit bool) {
+func (pm *ProtocolManager) synchronise(peer *peer) {
 	// Short circuit if no peers are available
 	if peer == nil {
 		return
 	}
 	// Make sure the peer's TD is higher than our own.
 	td := pm.blockchain.GetTdByHash(pm.blockchain.LastBlockHash())
-	if peer.Td().Cmp(td) > 0 {
+	if peer.Td().Cmp(td) <= 0 {
-		for {
+		return
+	}
 	if pm.downloader.Synchronise(peer.id, peer.Head(), peer.Td(), downloader.LightSync) != nil {
 		return
 	}
-			if exit {
-				return
-			}
-			time.Sleep(time.Second * 5)
-		}
-	}
 }