Removed old chain code

ethchain/block_chain.go

@@ -2,12 +2,10 @@ package ethchain
 
 import (
 	"bytes"
-	"math"
 	"math/big"
 
 	"github.com/ethereum/eth-go/ethlog"
 	"github.com/ethereum/eth-go/ethutil"
-	"github.com/ethereum/eth-go/ethwire"
 )
 
 var chainlogger = ethlog.NewLogger("CHAIN")
@@ -110,99 +108,6 @@ func (bc *BlockChain) CalculateBlockTD(block *Block) *big.Int {
 
 	return blockDiff
 }
-func (bc *BlockChain) FindCanonicalChainFromMsg(msg *ethwire.Msg, commonBlockHash []byte) bool {
-	var blocks []*Block
-	for i := 0; i < (msg.Data.Len() - 1); i++ {
-		block := NewBlockFromRlpValue(msg.Data.Get(i))
-		blocks = append(blocks, block)
-	}
-	return bc.FindCanonicalChain(blocks, commonBlockHash)
-}
-
-// Is tasked by finding the CanonicalChain and resetting the chain if we are not the Conical one
-// Return true if we are the using the canonical chain false if not
-func (bc *BlockChain) FindCanonicalChain(blocks []*Block, commonBlockHash []byte) bool {
-	// 1. Calculate TD of the current chain
-	// 2. Calculate TD of the new chain
-	// Reset state to the correct one
-
-	chainDifficulty := new(big.Int)
-
-	// Calculate the entire chain until the block we both have
-	// Start with the newest block we got, all the way back to the common block we both know
-	for _, block := range blocks {
-		if bytes.Compare(block.Hash(), commonBlockHash) == 0 {
-			chainlogger.Infoln("We have found the common parent block, breaking")
-			break
-		}
-		chainDifficulty.Add(chainDifficulty, bc.CalculateBlockTD(block))
-	}
-
-	chainlogger.Infoln("Incoming chain difficulty:", chainDifficulty)
-
-	curChainDifficulty := new(big.Int)
-	block := bc.CurrentBlock
-	for i := 0; block != nil; block = bc.GetBlock(block.PrevHash) {
-		i++
-		if bytes.Compare(block.Hash(), commonBlockHash) == 0 {
-			chainlogger.Infoln("Found the common parent block")
-			break
-		}
-		anOtherBlock := bc.GetBlock(block.PrevHash)
-		if anOtherBlock == nil {
-			// We do not want to count the genesis block for difficulty since that's not being sent
-			chainlogger.Infoln("Found genesis block. Stop")
-			break
-		}
-		curChainDifficulty.Add(curChainDifficulty, bc.CalculateBlockTD(block))
-	}
-
-	chainlogger.Infoln("Current chain difficulty:", curChainDifficulty)
-	if chainDifficulty.Cmp(curChainDifficulty) == 1 {
-		chainlogger.Infof("Resetting to block %x. Changing chain.")
-		bc.ResetTillBlockHash(commonBlockHash)
-		return false
-	} else {
-		chainlogger.Infoln("Current chain is longest chain. Ignoring incoming chain.")
-		return true
-	}
-}
-func (bc *BlockChain) ResetTillBlockHash(hash []byte) error {
-	lastBlock := bc.CurrentBlock
-	var returnTo *Block
-	// Reset to Genesis if that's all the origin there is.
-	if bytes.Compare(hash, bc.genesisBlock.Hash()) == 0 {
-		returnTo = bc.genesisBlock
-		bc.CurrentBlock = bc.genesisBlock
-		bc.LastBlockHash = bc.genesisBlock.Hash()
-		bc.LastBlockNumber = 1
-	} else {
-		returnTo = bc.GetBlock(hash)
-		bc.CurrentBlock = returnTo
-		bc.LastBlockHash = returnTo.Hash()
-		bc.LastBlockNumber = returnTo.Number.Uint64()
-	}
-
-	// Manually reset the last sync block
-	err := ethutil.Config.Db.Delete(lastBlock.Hash())
-	if err != nil {
-		return err
-	}
-
-	var block *Block
-	for ; block != nil; block = bc.GetBlock(block.PrevHash) {
-		if bytes.Compare(block.Hash(), hash) == 0 {
-			chainlogger.Infoln("We have arrived at the the common parent block, breaking")
-			break
-		}
-		err = ethutil.Config.Db.Delete(block.Hash())
-		if err != nil {
-			return err
-		}
-	}
-	chainlogger.Infoln("Split chain deleted and reverted to common parent block.")
-	return nil
-}
 
 func (bc *BlockChain) GenesisBlock() *Block {
 	return bc.genesisBlock
@@ -228,66 +133,6 @@ func (self *BlockChain) GetChainHashesFromHash(hash []byte, max uint64) (chain [
 	return
 }
 
-// Get chain return blocks from hash up to max in RLP format
-func (bc *BlockChain) GetChainFromHash(hash []byte, max uint64) []interface{} {
-	var chain []interface{}
-	// Get the current hash to start with
-	currentHash := bc.CurrentBlock.Hash()
-	// Get the last number on the block chain
-	lastNumber := bc.CurrentBlock.Number.Uint64()
-	// Get the parents number
-	parentNumber := bc.GetBlock(hash).Number.Uint64()
-	// Get the min amount. We might not have max amount of blocks
-	count := uint64(math.Min(float64(lastNumber-parentNumber), float64(max)))
-	startNumber := parentNumber + count
-
-	num := lastNumber
-	for num > startNumber {
-		num--
-
-		block := bc.GetBlock(currentHash)
-		if block == nil {
-			break
-		}
-		currentHash = block.PrevHash
-	}
-
-	for i := uint64(0); bytes.Compare(currentHash, hash) != 0 && num >= parentNumber && i < count; i++ {
-		// Get the block of the chain
-		block := bc.GetBlock(currentHash)
-		if block == nil {
-			chainlogger.Debugf("Unexpected error during GetChainFromHash: Unable to find %x\n", currentHash)
-			break
-		}
-
-		currentHash = block.PrevHash
-
-		chain = append(chain, block.Value().Val)
-
-		num--
-	}
-
-	return chain
-}
-
-func (bc *BlockChain) GetChain(hash []byte, amount int) []*Block {
-	genHash := bc.genesisBlock.Hash()
-
-	block := bc.GetBlock(hash)
-	var blocks []*Block
-
-	for i := 0; i < amount && block != nil; block = bc.GetBlock(block.PrevHash) {
-		blocks = append([]*Block{block}, blocks...)
-
-		if bytes.Compare(genHash, block.Hash()) == 0 {
-			break
-		}
-		i++
-	}
-
-	return blocks
-}
-
 func AddTestNetFunds(block *Block) {
 	for _, addr := range []string{
 		"51ba59315b3a95761d0863b05ccc7a7f54703d99",

ethchain/state_transition.go

@@ -140,7 +140,7 @@ func (self *StateTransition) preCheck() (err error) {
 }
 
 func (self *StateTransition) TransitionState() (err error) {
-	statelogger.Infof("(~) %x\n", self.tx.Hash())
+	statelogger.Debugf("(~) %x\n", self.tx.Hash())
 
 	/*
 		defer func() {