add fast sync func (#204)

[bytom/vapor.git] / protocol / protocol.go

diff --git a/protocol/protocol.go b/protocol/protocol.go
index 59e4d1a..cb31fe3 100644 (file)
--- a/protocol/protocol.go
+++ b/protocol/protocol.go
@@ -5,10 +5,9 @@ import (
 
        log "github.com/sirupsen/logrus"
 
+       "github.com/vapor/common"
        "github.com/vapor/config"
-       engine "github.com/vapor/consensus/consensus"
-       dpos "github.com/vapor/consensus/consensus/dpos"
-       "github.com/vapor/errors"
+       "github.com/vapor/event"
        "github.com/vapor/protocol/bc"
        "github.com/vapor/protocol/bc/types"
        "github.com/vapor/protocol/state"
@@ -24,26 +23,24 @@ type Chain struct {
        store          Store
        processBlockCh chan *processBlockMsg
 
-       cond     sync.Cond
-       bestNode *state.BlockNode
-       Engine   engine.Engine
+       consensusNodeManager *consensusNodeManager
+       signatureCache       *common.Cache
+       eventDispatcher      *event.Dispatcher
+
+       cond                 sync.Cond
+       bestNode             *state.BlockNode
+       bestIrreversibleNode *state.BlockNode
 }
 
 // NewChain returns a new Chain using store as the underlying storage.
-func NewChain(store Store, txPool *TxPool) (*Chain, error) {
-
-       var engine engine.Engine
-       switch config.CommonConfig.Consensus.Type {
-       case "dpos":
-               engine = dpos.GDpos
-       }
-
+func NewChain(store Store, txPool *TxPool, eventDispatcher *event.Dispatcher) (*Chain, error) {
        c := &Chain{
-               orphanManage:   NewOrphanManage(),
-               txPool:         txPool,
-               store:          store,
-               processBlockCh: make(chan *processBlockMsg, maxProcessBlockChSize),
-               Engine:         engine,
+               orphanManage:    NewOrphanManage(),
+               txPool:          txPool,
+               store:           store,
+               signatureCache:  common.NewCache(maxSignatureCacheSize),
+               eventDispatcher: eventDispatcher,
+               processBlockCh:  make(chan *processBlockMsg, maxProcessBlockChSize),
        }
        c.cond.L = new(sync.Mutex)
 
@@ -61,6 +58,8 @@ func NewChain(store Store, txPool *TxPool) (*Chain, error) {
        }
 
        c.bestNode = c.index.GetNode(storeStatus.Hash)
+       c.bestIrreversibleNode = c.index.GetNode(storeStatus.IrreversibleHash)
+       c.consensusNodeManager = newConsensusNodeManager(store, c.index)
        c.index.SetMainChain(c.bestNode)
        go c.blockProcesser()
        return c, nil
@@ -85,11 +84,18 @@ func (c *Chain) initChainStatus() error {
                return err
        }
 
+       voteResults := []*state.VoteResult{&state.VoteResult{
+               Seq:         0,
+               NumOfVote:   map[string]uint64{},
+               BlockHash:   genesisBlock.Hash(),
+               BlockHeight: 0,
+       }}
        node, err := state.NewBlockNode(&genesisBlock.BlockHeader, nil)
        if err != nil {
                return err
        }
-       return c.store.SaveChainStatus(node, utxoView)
+
+       return c.store.SaveChainStatus(node, node, utxoView, voteResults)
 }
 
 // BestBlockHeight returns the current height of the blockchain.
@@ -106,7 +112,11 @@ func (c *Chain) BestBlockHash() *bc.Hash {
        return &c.bestNode.Hash
 }
 
-// BestBlockHeader returns the chain tail block
+// BestIrreversibleHeader returns the chain best irreversible block
+func (c *Chain) BestIrreversibleHeader() *types.BlockHeader {
+       return c.bestIrreversibleNode.BlockHeader()
+}
+
 func (c *Chain) BestBlockHeader() *types.BlockHeader {
        node := c.index.BestNode()
        return node.BlockHeader()
@@ -117,37 +127,17 @@ func (c *Chain) InMainChain(hash bc.Hash) bool {
        return c.index.InMainchain(hash)
 }
 
-// CalcNextSeed return the seed for the given block
-func (c *Chain) CalcNextSeed(preBlock *bc.Hash) (*bc.Hash, error) {
-       node := c.index.GetNode(preBlock)
-       if node == nil {
-               return nil, errors.New("can't find preblock in the blockindex")
-       }
-       return node.CalcNextSeed(), nil
-}
-
-// CalcNextBits return the seed for the given block
-func (c *Chain) CalcNextBits(preBlock *bc.Hash) (uint64, error) {
-       node := c.index.GetNode(preBlock)
-       if node == nil {
-               return 0, errors.New("can't find preblock in the blockindex")
-       }
-       return node.CalcNextBits(), nil
-}
-
 // This function must be called with mu lock in above level
-func (c *Chain) setState(node *state.BlockNode, view *state.UtxoViewpoint) error {
-       if err := c.store.SaveChainStatus(node, view); err != nil {
+func (c *Chain) setState(node, irreversibleNode *state.BlockNode, view *state.UtxoViewpoint, voteResults []*state.VoteResult) error {
+       if err := c.store.SaveChainStatus(node, irreversibleNode, view, voteResults); err != nil {
                return err
        }
 
-       c.cond.L.Lock()
-       defer c.cond.L.Unlock()
-
        c.index.SetMainChain(node)
        c.bestNode = node
+       c.bestIrreversibleNode = irreversibleNode
 
-       log.WithFields(log.Fields{"height": c.bestNode.Height, "hash": c.bestNode.Hash.String()}).Debug("chain best status has been update")
+       log.WithFields(log.Fields{"module": logModule, "height": c.bestNode.Height, "hash": c.bestNode.Hash.String()}).Debug("chain best status has been update")
        c.cond.Broadcast()
        return nil
 }