import (
log "github.com/sirupsen/logrus"
- "github.com/vapor/config"
- "github.com/vapor/errors"
- "github.com/vapor/event"
- "github.com/vapor/protocol/bc"
- "github.com/vapor/protocol/bc/types"
- "github.com/vapor/protocol/state"
- "github.com/vapor/protocol/validation"
+ "github.com/bytom/vapor/errors"
+ "github.com/bytom/vapor/protocol/bc"
+ "github.com/bytom/vapor/protocol/bc/types"
+ "github.com/bytom/vapor/protocol/state"
+ "github.com/bytom/vapor/protocol/validation"
)
var (
ErrBadBlock = errors.New("invalid block")
// ErrBadStateRoot is returned when the computed assets merkle root
// disagrees with the one declared in a block header.
- ErrBadStateRoot = errors.New("invalid state merkle root")
- errBelowIrreversibleBlock = errors.New("the height of block below the height of irreversible block")
+ ErrBadStateRoot = errors.New("invalid state merkle root")
)
// BlockExist check is a block in chain or orphan
func (c *Chain) BlockExist(hash *bc.Hash) bool {
- return c.index.BlockExist(hash) || c.orphanManage.BlockExist(hash)
+ if _, err := c.store.GetBlockHeader(hash); err == nil {
+ return true
+ }
+ return c.orphanManage.BlockExist(hash)
}
// GetBlockByHash return a block by given hash
func (c *Chain) GetBlockByHash(hash *bc.Hash) (*types.Block, error) {
- node := c.index.GetNode(hash)
- if node == nil {
- return nil, errors.New("can't find block in given hash")
- }
- return c.store.GetBlock(hash, node.Height)
+ return c.store.GetBlock(hash)
}
-// GetBlockByHeight return a block header by given height
+// GetBlockByHeight return a block by given height
func (c *Chain) GetBlockByHeight(height uint64) (*types.Block, error) {
- node := c.index.NodeByHeight(height)
- if node == nil {
- return nil, errors.New("can't find block in given height")
+ hash, err := c.store.GetMainChainHash(height)
+ if err != nil {
+ return nil, errors.Wrap(err, "can't find block in given height")
}
- return c.store.GetBlock(&node.Hash, height)
+ return c.store.GetBlock(hash)
}
// GetHeaderByHash return a block header by given hash
func (c *Chain) GetHeaderByHash(hash *bc.Hash) (*types.BlockHeader, error) {
- node := c.index.GetNode(hash)
- if node == nil {
- return nil, errors.New("can't find block header in given hash")
- }
- return node.BlockHeader(), nil
+ return c.store.GetBlockHeader(hash)
}
// GetHeaderByHeight return a block header by given height
func (c *Chain) GetHeaderByHeight(height uint64) (*types.BlockHeader, error) {
- node := c.index.NodeByHeight(height)
- if node == nil {
- return nil, errors.New("can't find block header in given height")
+ hash, err := c.store.GetMainChainHash(height)
+ if err != nil {
+ return nil, errors.Wrap(err, "can't find block header in given height")
}
- return node.BlockHeader(), nil
+ return c.store.GetBlockHeader(hash)
}
-func (c *Chain) calcReorganizeNodes(node *state.BlockNode) ([]*state.BlockNode, []*state.BlockNode) {
- var attachNodes []*state.BlockNode
- var detachNodes []*state.BlockNode
+func (c *Chain) calcReorganizeChain(beginAttach *types.BlockHeader, beginDetach *types.BlockHeader) ([]*types.BlockHeader, []*types.BlockHeader, error) {
+ var err error
+ var attachBlockHeaders []*types.BlockHeader
+ var detachBlockHeaders []*types.BlockHeader
- attachNode := node
- for c.index.NodeByHeight(attachNode.Height) != attachNode {
- attachNodes = append([]*state.BlockNode{attachNode}, attachNodes...)
- attachNode = attachNode.Parent
- }
+ for attachBlockHeader, detachBlockHeader := beginAttach, beginDetach; detachBlockHeader.Hash() != attachBlockHeader.Hash(); {
+ var attachRollback, detachRollBack bool
+ if attachRollback = attachBlockHeader.Height >= detachBlockHeader.Height; attachRollback {
+ attachBlockHeaders = append([]*types.BlockHeader{attachBlockHeader}, attachBlockHeaders...)
+ }
+
+ if detachRollBack = attachBlockHeader.Height <= detachBlockHeader.Height; detachRollBack {
+ detachBlockHeaders = append(detachBlockHeaders, detachBlockHeader)
+ }
+
+ if attachRollback {
+ attachBlockHeader, err = c.store.GetBlockHeader(&attachBlockHeader.PreviousBlockHash)
+ if err != nil {
+ return nil, nil, err
+ }
+ }
- detachNode := c.bestNode
- for detachNode != attachNode {
- detachNodes = append(detachNodes, detachNode)
- detachNode = detachNode.Parent
+ if detachRollBack {
+ detachBlockHeader, err = c.store.GetBlockHeader(&detachBlockHeader.PreviousBlockHash)
+ if err != nil {
+ return nil, nil, err
+ }
+ }
}
- return attachNodes, detachNodes
+ return attachBlockHeaders, detachBlockHeaders, nil
}
func (c *Chain) connectBlock(block *types.Block) (err error) {
- irreversibleNode := c.bestIrreversibleNode
bcBlock := types.MapBlock(block)
if bcBlock.TransactionStatus, err = c.store.GetTransactionStatus(&bcBlock.ID); err != nil {
return err
return err
}
- voteResult, err := c.consensusNodeManager.getBestVoteResult()
+ consensusResult, err := c.getBestConsensusResult()
if err != nil {
return err
}
- if err := voteResult.ApplyBlock(block); err != nil {
+
+ if err := consensusResult.ApplyBlock(block); err != nil {
return err
}
- node := c.index.GetNode(&bcBlock.ID)
- if c.isIrreversible(node) && block.Height > irreversibleNode.Height {
- irreversibleNode = node
+ for _, p := range c.subProtocols {
+ if err := c.syncProtocolStatus(p); err != nil {
+ return errors.Wrap(err, p.Name(), "sync sub protocol status")
+ }
+
+ if err := p.ApplyBlock(block); err != nil {
+ return errors.Wrap(err, p.Name(), "sub protocol connect block")
+ }
}
- if err := c.setState(node, irreversibleNode, utxoView, []*state.VoteResult{voteResult}); err != nil {
+ if err := c.applyBlockSign(&block.BlockHeader); err != nil {
+ return err
+ }
+
+ irrBlockHeader := c.lastIrrBlockHeader
+ if c.isIrreversible(&block.BlockHeader) && block.Height > irrBlockHeader.Height {
+ irrBlockHeader = &block.BlockHeader
+ }
+
+ if err := c.setState(&block.BlockHeader, irrBlockHeader, []*types.BlockHeader{&block.BlockHeader}, utxoView, []*state.ConsensusResult{consensusResult}); err != nil {
return err
}
return nil
}
-func (c *Chain) reorganizeChain(node *state.BlockNode) error {
- attachNodes, detachNodes := c.calcReorganizeNodes(node)
+func (c *Chain) detachBlock(detachBlockHeader *types.BlockHeader, consensusResult *state.ConsensusResult, utxoView *state.UtxoViewpoint) (*types.Block, error) {
+ detachHash := detachBlockHeader.Hash()
+ block, err := c.store.GetBlock(&detachHash)
+ if err != nil {
+ return block, err
+ }
+
+ detachBlock := types.MapBlock(block)
+ if err := consensusResult.DetachBlock(block); err != nil {
+ return block, err
+ }
+
+ if err := c.store.GetTransactionsUtxo(utxoView, detachBlock.Transactions); err != nil {
+ return block, err
+ }
+
+ txStatus, err := c.GetTransactionStatus(&detachBlock.ID)
+ if err != nil {
+ return block, err
+ }
+
+ if err := utxoView.DetachBlock(detachBlock, txStatus); err != nil {
+ return block, err
+ }
+
+ for _, p := range c.subProtocols {
+ if err := p.DetachBlock(block); err != nil {
+ return block, errors.Wrap(err, p.Name(), "sub protocol detach block")
+ }
+ }
+
+ log.WithFields(log.Fields{"module": logModule, "height": detachBlockHeader.Height, "hash": detachHash.String()}).Debug("detach from mainchain")
+ return block, nil
+}
+
+func (c *Chain) syncSubProtocols() error {
+ for _, p := range c.subProtocols {
+ if err := c.syncProtocolStatus(p); err != nil {
+ return errors.Wrap(err, p.Name(), "sync sub protocol status")
+ }
+ }
+ return nil
+}
+
+// Rollback rollback the chain from one blockHeight to targetBlockHeight
+// WARNING: we recommend to use this only in commond line
+func (c *Chain) Rollback(targetHeight uint64) error {
+ c.cond.L.Lock()
+ defer c.cond.L.Unlock()
+
utxoView := state.NewUtxoViewpoint()
- voteResults := []*state.VoteResult{}
- irreversibleNode := c.bestIrreversibleNode
- voteResult, err := c.consensusNodeManager.getBestVoteResult()
+ consensusResult, err := c.getBestConsensusResult()
if err != nil {
return err
}
- for _, detachNode := range detachNodes {
- b, err := c.store.GetBlock(&detachNode.Hash, detachNode.Height)
+ if err = c.syncSubProtocols(); err != nil {
+ return err
+ }
+
+ targetBlockHeader, err := c.GetHeaderByHeight(targetHeight)
+ if err != nil {
+ return err
+ }
+
+ _, deletedBlockHeaders, err := c.calcReorganizeChain(targetBlockHeader, c.bestBlockHeader)
+ if err != nil {
+ return err
+ }
+
+ deletedBlocks := []*types.Block{}
+ for _, deletedBlockHeader := range deletedBlockHeaders {
+ block, err := c.detachBlock(deletedBlockHeader, consensusResult, utxoView)
if err != nil {
return err
}
- detachBlock := types.MapBlock(b)
- if err := c.store.GetTransactionsUtxo(utxoView, detachBlock.Transactions); err != nil {
+ deletedBlocks = append(deletedBlocks, block)
+ }
+
+ setIrrBlockHeader := c.lastIrrBlockHeader
+ if c.lastIrrBlockHeader.Height > targetBlockHeader.Height {
+ setIrrBlockHeader = targetBlockHeader
+ }
+
+ startSeq := state.CalcVoteSeq(c.bestBlockHeader.Height)
+ if err = c.setState(targetBlockHeader, setIrrBlockHeader, nil, utxoView, []*state.ConsensusResult{consensusResult.Fork()}); err != nil {
+ return err
+ }
+
+ for _, block := range deletedBlocks {
+ hashes, err := c.store.GetBlockHashesByHeight(block.Height)
+ if err != nil{
return err
}
- txStatus, err := c.GetTransactionStatus(&detachBlock.ID)
- if err != nil {
- return err
+ for _, hash := range hashes{
+ block, err := c.store.GetBlock(hash)
+ if err != nil{
+ return err
+ }
+
+ if err := c.store.DeleteBlock(block); err != nil{
+ return err
+ }
}
+ }
- if err := utxoView.DetachBlock(detachBlock, txStatus); err != nil {
+ endSeq := state.CalcVoteSeq(targetHeight)
+ for nowSeq := startSeq; nowSeq > endSeq; nowSeq-- {
+ if err := c.store.DeleteConsensusResult(nowSeq); err != nil {
return err
}
+ }
+
+ return nil
+}
+
+func (c *Chain) reorganizeChain(blockHeader *types.BlockHeader) error {
+ attachBlockHeaders, detachBlockHeaders, err := c.calcReorganizeChain(blockHeader, c.bestBlockHeader)
+ if err != nil {
+ return err
+ }
- if err := voteResult.DetachBlock(b); err != nil {
+ utxoView := state.NewUtxoViewpoint()
+ consensusResults := []*state.ConsensusResult{}
+ consensusResult, err := c.getBestConsensusResult()
+ if err != nil {
+ return err
+ }
+
+ if err = c.syncSubProtocols(); err != nil {
+ return err
+ }
+
+ txsToRestore := map[bc.Hash]*types.Tx{}
+ for _, detachBlockHeader := range detachBlockHeaders {
+ b, err := c.detachBlock(detachBlockHeader, consensusResult, utxoView)
+ if err != nil {
return err
}
- log.WithFields(log.Fields{"module": logModule, "height": node.Height, "hash": node.Hash.String()}).Debug("detach from mainchain")
+ for _, tx := range b.Transactions {
+ txsToRestore[tx.ID] = tx
+ }
}
- for _, attachNode := range attachNodes {
- b, err := c.store.GetBlock(&attachNode.Hash, attachNode.Height)
+ txsToRemove := map[bc.Hash]*types.Tx{}
+ irrBlockHeader := c.lastIrrBlockHeader
+ for _, attachBlockHeader := range attachBlockHeaders {
+ attachHash := attachBlockHeader.Hash()
+ b, err := c.store.GetBlock(&attachHash)
if err != nil {
return err
}
return err
}
- if err := voteResult.ApplyBlock(b); err != nil {
+ if err := consensusResult.ApplyBlock(b); err != nil {
+ return err
+ }
+
+ for _, p := range c.subProtocols {
+ if err := p.ApplyBlock(b); err != nil {
+ return errors.Wrap(err, p.Name(), "sub protocol attach block")
+ }
+ }
+
+ if consensusResult.IsFinalize() {
+ consensusResults = append(consensusResults, consensusResult.Fork())
+ }
+
+ if err := c.applyBlockSign(attachBlockHeader); err != nil {
return err
}
- if voteResult.IsFinalize() {
- voteResults = append(voteResults, voteResult.Fork())
+ if c.isIrreversible(attachBlockHeader) && attachBlockHeader.Height > irrBlockHeader.Height {
+ irrBlockHeader = attachBlockHeader
}
- if c.isIrreversible(attachNode) && attachNode.Height > irreversibleNode.Height {
- irreversibleNode = attachNode
+ for _, tx := range b.Transactions {
+ if _, ok := txsToRestore[tx.ID]; !ok {
+ txsToRemove[tx.ID] = tx
+ } else {
+ delete(txsToRestore, tx.ID)
+ }
}
- log.WithFields(log.Fields{"module": logModule, "height": node.Height, "hash": node.Hash.String()}).Debug("attach from mainchain")
+ blockHash := blockHeader.Hash()
+ log.WithFields(log.Fields{"module": logModule, "height": blockHeader.Height, "hash": blockHash.String()}).Debug("attach from mainchain")
}
- if detachNodes[len(detachNodes)-1].Height <= c.bestIrreversibleNode.Height && irreversibleNode.Height <= c.bestIrreversibleNode.Height {
- return errors.New("rollback block below the height of irreversible block")
+ if len(detachBlockHeaders) > 0 && detachBlockHeaders[len(detachBlockHeaders)-1].Height <= c.lastIrrBlockHeader.Height && irrBlockHeader.Height <= c.lastIrrBlockHeader.Height {
+ log.WithField("module", logModule).Warn("rollback block below the height of irreversible block")
+ return nil
}
- voteResults = append(voteResults, voteResult.Fork())
- return c.setState(node, irreversibleNode, utxoView, voteResults)
+
+ consensusResults = append(consensusResults, consensusResult.Fork())
+ if err := c.setState(blockHeader, irrBlockHeader, attachBlockHeaders, utxoView, consensusResults); err != nil {
+ return err
+ }
+
+ for txHash := range txsToRemove {
+ c.txPool.RemoveTransaction(&txHash)
+ }
+
+ for _, tx := range txsToRestore {
+ // the number of restored Tx should be very small or most of time ZERO
+ // Error returned from validation is ignored, tx could still be lost if validation fails.
+ // TODO: adjust tx timestamp so that it won't starve in pool.
+ if _, err := c.validateTx(tx, blockHeader); err != nil {
+ log.WithFields(log.Fields{"module": logModule, "tx_id": tx.Tx.ID.String(), "error": err}).Info("restore tx fail")
+ }
+ }
+
+ if len(txsToRestore) > 0 {
+ log.WithFields(log.Fields{"module": logModule, "num": len(txsToRestore)}).Debug("restore txs back to pool")
+ }
+ return nil
}
// SaveBlock will validate and save block into storage
return errors.Sub(ErrBadBlock, err)
}
- parent := c.index.GetNode(&block.PreviousBlockHash)
- bcBlock := types.MapBlock(block)
- if err := validation.ValidateBlock(bcBlock, parent); err != nil {
- return errors.Sub(ErrBadBlock, err)
- }
-
- signature, err := c.SignBlock(block)
+ parent, err := c.store.GetBlockHeader(&block.PreviousBlockHash)
if err != nil {
- return errors.Sub(ErrBadBlock, err)
+ return err
}
- if err := c.store.SaveBlock(block, bcBlock.TransactionStatus); err != nil {
+ consensusResult, err := c.GetConsensusResultByHash(&block.PreviousBlockHash)
+ if err != nil {
return err
}
- c.orphanManage.Delete(&bcBlock.ID)
- node, err := state.NewBlockNode(&block.BlockHeader, parent)
+ rewards, err := consensusResult.GetCoinbaseRewards(parent.Height)
if err != nil {
return err
}
- c.index.AddNode(node)
+ bcBlock := types.MapBlock(block)
+ if err := validation.ValidateBlock(bcBlock, parent, rewards); err != nil {
+ return errors.Sub(ErrBadBlock, err)
+ }
- if len(signature) != 0 {
- xPub := config.CommonConfig.PrivateKey().XPub()
- if err := c.eventDispatcher.Post(event.BlockSignatureEvent{BlockHash: block.Hash(), Signature: signature, XPub: xPub[:]}); err != nil {
- return err
+ for _, p := range c.subProtocols {
+ if err := p.ValidateBlock(block, bcBlock.TransactionStatus.GetVerifyStatus()); err != nil {
+ return errors.Wrap(err, "sub protocol save block")
}
}
+
+ if err := c.store.SaveBlock(block, bcBlock.TransactionStatus); err != nil {
+ return err
+ }
+
+ c.orphanManage.Delete(&bcBlock.ID)
return nil
}
func (c *Chain) processBlock(block *types.Block) (bool, error) {
blockHash := block.Hash()
if c.BlockExist(&blockHash) {
- log.WithFields(log.Fields{"module": logModule, "hash": blockHash.String(), "height": block.Height}).Info("block has been processed")
+ log.WithFields(log.Fields{"module": logModule, "hash": blockHash.String(), "height": block.Height}).Debug("block has been processed")
return c.orphanManage.BlockExist(&blockHash), nil
}
- if parent := c.index.GetNode(&block.PreviousBlockHash); parent == nil {
+ c.markTransactions(block.Transactions...)
+
+ if _, err := c.store.GetBlockHeader(&block.PreviousBlockHash); err != nil {
c.orphanManage.Add(block)
return true, nil
}
}
bestBlock := c.saveSubBlock(block)
- bestBlockHash := bestBlock.Hash()
- bestNode := c.index.GetNode(&bestBlockHash)
+ bestBlockHeader := &bestBlock.BlockHeader
c.cond.L.Lock()
defer c.cond.L.Unlock()
- if bestNode.Parent == c.bestNode {
+ if bestBlockHeader.PreviousBlockHash == c.bestBlockHeader.Hash() {
log.WithFields(log.Fields{"module": logModule}).Debug("append block to the end of mainchain")
return false, c.connectBlock(bestBlock)
}
- if bestNode.Height > c.bestNode.Height {
+ if bestBlockHeader.Height > c.bestBlockHeader.Height {
log.WithFields(log.Fields{"module": logModule}).Debug("start to reorganize chain")
- return false, c.reorganizeChain(bestNode)
+ return false, c.reorganizeChain(bestBlockHeader)
}
return false, nil
}
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