--- /dev/null
+package chainmgr
+
+import (
+ "sync"
+
+ log "github.com/sirupsen/logrus"
+
+ "github.com/bytom/bytom/errors"
+ "github.com/bytom/bytom/netsync/peers"
+ "github.com/bytom/bytom/p2p/security"
+ "github.com/bytom/bytom/protocol"
+)
+
+var errOrphanBlock = errors.New("fast sync inserting orphan block")
+
+type blockProcessor struct {
+ chain Chain
+ storage *storage
+ peers *peers.PeerSet
+}
+
+func newBlockProcessor(chain Chain, storage *storage, peers *peers.PeerSet) *blockProcessor {
+ return &blockProcessor{
+ chain: chain,
+ peers: peers,
+ storage: storage,
+ }
+}
+
+func (bp *blockProcessor) insert(blockStorage *blockStorage) error {
+ isOrphan, err := bp.chain.ProcessBlock(blockStorage.block)
+ if isOrphan {
+ bp.peers.ProcessIllegal(blockStorage.peerID, security.LevelMsgIllegal, errOrphanBlock.Error())
+ return errOrphanBlock
+ }
+
+ if err != nil && errors.Root(err) != protocol.ErrDoubleSignBlock {
+ bp.peers.ProcessIllegal(blockStorage.peerID, security.LevelMsgIllegal, err.Error())
+ }
+ return err
+}
+
+func (bp *blockProcessor) process(downloadNotifyCh chan struct{}, ProcessStop chan struct{}, syncHeight uint64, wg *sync.WaitGroup) {
+ defer func() {
+ close(ProcessStop)
+ wg.Done()
+ }()
+
+ for {
+ for {
+ block, err := bp.storage.readBlock(syncHeight)
+ if err != nil {
+ break
+ }
+
+ if err := bp.insert(block); err != nil {
+ log.WithFields(log.Fields{"module": logModule, "err": err}).Error("failed on process block")
+ return
+ }
+
+ bp.storage.deleteBlock(syncHeight)
+ syncHeight++
+ }
+
+ if _, ok := <-downloadNotifyCh; !ok {
+ return
+ }
+ }
+}