add state sync to core.blockchain

consensus/bor/bor.go

@@ -679,13 +679,13 @@ func (c *Bor) Finalize(chain consensus.ChainReader, header *types.Header, state
 	// No block rewards in PoA, so the state remains as is and uncles are dropped
 	header.Root = state.IntermediateRoot(chain.Config().IsEIP158(header.Number))
 	header.UncleHash = types.CalcUncleHash(nil)
-	header.SetStateSync(stateSyncData)
+	r := chain.(*core.BlockChain)
+	r.SetStateSync(stateSyncData)
 }
 
 // FinalizeAndAssemble implements consensus.Engine, ensuring no uncles are set,
 // nor block rewards given, and returns the final block.
 func (c *Bor) FinalizeAndAssemble(chain consensus.ChainReader, header *types.Header, state *state.StateDB, txs []*types.Transaction, uncles []*types.Header, receipts []*types.Receipt) (*types.Block, error) {
-	stateSyncData := []*types.StateData{}
 	headerNumber := header.Number.Uint64()
 	if headerNumber%c.config.Sprint == 0 {
 		cx := chainContext{Chain: chain, Bor: c}
@@ -699,7 +699,7 @@ func (c *Bor) FinalizeAndAssemble(chain consensus.ChainReader, header *types.Hea
 
 		if !c.WithoutHeimdall {
 			// commit statees
-			stateSyncData, err = c.CommitStates(state, header, cx)
+			_, err = c.CommitStates(state, header, cx)
 			if err != nil {
 				log.Error("Error while committing states", "error", err)
 				return nil, err
@@ -710,7 +710,6 @@ func (c *Bor) FinalizeAndAssemble(chain consensus.ChainReader, header *types.Hea
 	// No block rewards in PoA, so the state remains as is and uncles are dropped
 	header.Root = state.IntermediateRoot(chain.Config().IsEIP158(header.Number))
 	header.UncleHash = types.CalcUncleHash(nil)
-	header.SetStateSync(stateSyncData)
 
 	// Assemble block
 	block := types.NewBlock(header, txs, nil, receipts)

core/blockchain.go

@@ -180,6 +180,8 @@ type BlockChain struct {
 	txLookupCache *lru.Cache     // Cache for the most recent transaction lookup data.
 	futureBlocks  *lru.Cache     // future blocks are blocks added for later processing
 
+	stateSyncData []*types.StateData
+
 	quit          chan struct{}  // blockchain quit channel
 	wg            sync.WaitGroup // chain processing wait group for shutting down
 	running       int32          // 0 if chain is running, 1 when stopped
@@ -333,6 +335,11 @@ func NewBlockChain(db ethdb.Database, cacheConfig *CacheConfig, chainConfig *par
 	return bc, nil
 }
 
+// SetStateSync set sync data in block
+func (bc *BlockChain) SetStateSync(stateData []*types.StateData) {
+	bc.stateSyncData = stateData
+}
+
 // GetVMConfig returns the block chain VM config.
 func (bc *BlockChain) GetVMConfig() *vm.Config {
 	return &bc.vmConfig
@@ -1793,9 +1800,7 @@ func (bc *BlockChain) insertChain(chain types.Blocks, verifySeals bool) (int, er
 		// Process block using the parent state as reference point
 		substart := time.Now()
 		receipts, logs, usedGas, err := bc.processor.Process(block, statedb, bc.vmConfig)
-		syncData := block.StateSyncData()
+		for _, data := range bc.stateSyncData {
-
-		for _, data := range syncData {
 			bc.stateSyncFeed.Send(StateSyncEvent{StateData: data})
 		}
 		if err != nil {

core/state_processor.go

@@ -77,7 +77,6 @@ func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg
 	}
 	// Finalize the block, applying any consensus engine specific extras (e.g. block rewards)
 	p.engine.Finalize(p.bc, header, statedb, block.Transactions(), block.Uncles())
-	block.SetStateSync(header.StateData())
 	return receipts, allLogs, *usedGas, nil
 }
 

core/types/block.go

@@ -66,6 +66,14 @@ func (n *BlockNonce) UnmarshalText(input []byte) error {
 	return hexutil.UnmarshalFixedText("BlockNonce", input, n[:])
 }
 
+// StateData represents state received from Ethereum Blockchain
+type StateData struct {
+	Did      uint64
+	Contract common.Address
+	Data     string
+	TxHash   common.Hash
+}
+
 //go:generate gencodec -type Header -field-override headerMarshaling -out gen_header_json.go
 
 // Header represents a block header in the Ethereum blockchain.
@@ -85,7 +93,6 @@ type Header struct {
 	Extra       []byte         `json:"extraData"        gencodec:"required"`
 	MixDigest   common.Hash    `json:"mixHash"`
 	Nonce       BlockNonce     `json:"nonce"`
-	stateSyncData []*StateData
 }
 
 // field type overrides for gencodec
@@ -113,21 +120,6 @@ func (h *Header) Size() common.StorageSize {
 	return headerSize + common.StorageSize(len(h.Extra)+(h.Difficulty.BitLen()+h.Number.BitLen())/8)
 }
 
-// SetStateSync set sync data in block
-func (h *Header) SetStateSync(stateData []*StateData) {
-	h.stateSyncData = stateData
-}
-
-// SetStateSync set sync data in block
-func (h *Block) SetStateSync(stateData []*StateData) {
-	h.stateSyncData = stateData
-}
-
-// StateSyncData set sync data in block
-func (h *Header) StateData() []*StateData {
-	return h.stateSyncData
-}
-
 // SanityCheck checks a few basic things -- these checks are way beyond what
 // any 'sane' production values should hold, and can mainly be used to prevent
 // that the unbounded fields are stuffed with junk data to add processing
@@ -175,7 +167,6 @@ type Block struct {
 	header       *Header
 	uncles       []*Header
 	transactions Transactions
-	stateSyncData []*StateData
 
 	// caches
 	hash atomic.Value
@@ -333,7 +324,6 @@ func (b *Block) GasLimit() uint64            { return b.header.GasLimit }
 func (b *Block) GasUsed() uint64      { return b.header.GasUsed }
 func (b *Block) Difficulty() *big.Int { return new(big.Int).Set(b.header.Difficulty) }
 func (b *Block) Time() uint64         { return b.header.Time }
-func (b *Block) StateSyncData() []*StateData { return b.stateSyncData }
 
 func (b *Block) NumberU64() uint64        { return b.header.Number.Uint64() }
 func (b *Block) MixDigest() common.Hash   { return b.header.MixDigest }

core/types/transaction.go

@@ -60,14 +60,6 @@ type txdata struct {
 	Hash *common.Hash `json:"hash" rlp:"-"`
 }
 
-// State represents state received from Ethereum Blockchain
-type StateData struct {
-	Did      uint64
-	Contract common.Address
-	Data     string
-	TxHash   common.Hash
-}
-
 type txdataMarshaling struct {
 	AccountNonce hexutil.Uint64
 	Price        *hexutil.Big