Renamed `chain` => `core`

1 files changed, 0 insertions, 276 deletions

diff --git a/chain/chain_manager.go b/chain/chain_manager.go
deleted file mode 100644
index 9b35ce08a..000000000
--- a/chain/chain_manager.go
+++ /dev/null
@@ -1,276 +0,0 @@
-package chain
-
-import (
-	"fmt"
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/chain/types"
-	"github.com/ethereum/go-ethereum/ethutil"
-	"github.com/ethereum/go-ethereum/event"
-	"github.com/ethereum/go-ethereum/logger"
-)
-
-var chainlogger = logger.NewLogger("CHAIN")
-
-func AddTestNetFunds(block *types.Block) {
-	for _, addr := range []string{
-		"51ba59315b3a95761d0863b05ccc7a7f54703d99",
-		"e4157b34ea9615cfbde6b4fda419828124b70c78",
-		"b9c015918bdaba24b4ff057a92a3873d6eb201be",
-		"6c386a4b26f73c802f34673f7248bb118f97424a",
-		"cd2a3d9f938e13cd947ec05abc7fe734df8dd826",
-		"2ef47100e0787b915105fd5e3f4ff6752079d5cb",
-		"e6716f9544a56c530d868e4bfbacb172315bdead",
-		"1a26338f0d905e295fccb71fa9ea849ffa12aaf4",
-	} {
-		codedAddr := ethutil.Hex2Bytes(addr)
-		account := block.State().GetAccount(codedAddr)
-		account.SetBalance(ethutil.Big("1606938044258990275541962092341162602522202993782792835301376")) //ethutil.BigPow(2, 200)
-		block.State().UpdateStateObject(account)
-	}
-}
-
-func CalcDifficulty(block, parent *types.Block) *big.Int {
-	diff := new(big.Int)
-
-	adjust := new(big.Int).Rsh(parent.Difficulty, 10)
-	if block.Time >= parent.Time+5 {
-		diff.Sub(parent.Difficulty, adjust)
-	} else {
-		diff.Add(parent.Difficulty, adjust)
-	}
-
-	return diff
-}
-
-type ChainManager struct {
-	//eth          EthManager
-	processor    types.BlockProcessor
-	eventMux     *event.TypeMux
-	genesisBlock *types.Block
-	// Last known total difficulty
-	TD *big.Int
-
-	LastBlockNumber uint64
-
-	CurrentBlock  *types.Block
-	LastBlockHash []byte
-}
-
-func NewChainManager(mux *event.TypeMux) *ChainManager {
-	bc := &ChainManager{}
-	bc.genesisBlock = types.NewBlockFromBytes(ethutil.Encode(Genesis))
-	bc.eventMux = mux
-
-	bc.setLastBlock()
-
-	return bc
-}
-
-func (self *ChainManager) SetProcessor(proc types.BlockProcessor) {
-	self.processor = proc
-}
-
-func (bc *ChainManager) setLastBlock() {
-	data, _ := ethutil.Config.Db.Get([]byte("LastBlock"))
-	if len(data) != 0 {
-		// Prep genesis
-		AddTestNetFunds(bc.genesisBlock)
-
-		block := types.NewBlockFromBytes(data)
-		bc.CurrentBlock = block
-		bc.LastBlockHash = block.Hash()
-		bc.LastBlockNumber = block.Number.Uint64()
-
-		// Set the last know difficulty (might be 0x0 as initial value, Genesis)
-		bc.TD = ethutil.BigD(ethutil.Config.Db.LastKnownTD())
-	} else {
-		bc.Reset()
-	}
-
-	chainlogger.Infof("Last block (#%d) %x\n", bc.LastBlockNumber, bc.CurrentBlock.Hash())
-}
-
-// Block creation & chain handling
-func (bc *ChainManager) NewBlock(coinbase []byte) *types.Block {
-	var root interface{}
-	hash := ZeroHash256
-
-	if bc.CurrentBlock != nil {
-		root = bc.CurrentBlock.Root()
-		hash = bc.LastBlockHash
-	}
-
-	block := types.CreateBlock(
-		root,
-		hash,
-		coinbase,
-		ethutil.BigPow(2, 32),
-		nil,
-		"")
-
-	parent := bc.CurrentBlock
-	if parent != nil {
-		block.Difficulty = CalcDifficulty(block, parent)
-		block.Number = new(big.Int).Add(bc.CurrentBlock.Number, ethutil.Big1)
-		block.GasLimit = block.CalcGasLimit(bc.CurrentBlock)
-
-	}
-
-	return block
-}
-
-func (bc *ChainManager) Reset() {
-	AddTestNetFunds(bc.genesisBlock)
-
-	bc.genesisBlock.Trie().Sync()
-	// Prepare the genesis block
-	bc.add(bc.genesisBlock)
-	bc.CurrentBlock = bc.genesisBlock
-
-	bc.SetTotalDifficulty(ethutil.Big("0"))
-
-	// Set the last know difficulty (might be 0x0 as initial value, Genesis)
-	bc.TD = ethutil.BigD(ethutil.Config.Db.LastKnownTD())
-}
-
-// Add a block to the chain and record addition information
-func (bc *ChainManager) add(block *types.Block) {
-	bc.writeBlockInfo(block)
-
-	bc.CurrentBlock = block
-	bc.LastBlockHash = block.Hash()
-
-	encodedBlock := block.RlpEncode()
-	ethutil.Config.Db.Put(block.Hash(), encodedBlock)
-	ethutil.Config.Db.Put([]byte("LastBlock"), encodedBlock)
-
-	//chainlogger.Infof("Imported block #%d (%x...)\n", block.Number, block.Hash()[0:4])
-}
-
-// Accessors
-func (bc *ChainManager) Genesis() *types.Block {
-	return bc.genesisBlock
-}
-
-// Block fetching methods
-func (bc *ChainManager) HasBlock(hash []byte) bool {
-	data, _ := ethutil.Config.Db.Get(hash)
-	return len(data) != 0
-}
-
-func (self *ChainManager) GetChainHashesFromHash(hash []byte, max uint64) (chain [][]byte) {
-	block := self.GetBlock(hash)
-	if block == nil {
-		return
-	}
-
-	// XXX Could be optimised by using a different database which only holds hashes (i.e., linked list)
-	for i := uint64(0); i < max; i++ {
-
-		chain = append(chain, block.Hash())
-
-		if block.Number.Cmp(ethutil.Big0) <= 0 {
-			break
-		}
-
-		block = self.GetBlock(block.PrevHash)
-	}
-
-	return
-}
-
-func (self *ChainManager) GetBlock(hash []byte) *types.Block {
-	data, _ := ethutil.Config.Db.Get(hash)
-	if len(data) == 0 {
-		return nil
-	}
-
-	return types.NewBlockFromBytes(data)
-}
-
-func (self *ChainManager) GetBlockByNumber(num uint64) *types.Block {
-	block := self.CurrentBlock
-	for ; block != nil; block = self.GetBlock(block.PrevHash) {
-		if block.Number.Uint64() == num {
-			break
-		}
-	}
-
-	if block != nil && block.Number.Uint64() == 0 && num != 0 {
-		return nil
-	}
-
-	return block
-}
-
-func (bc *ChainManager) SetTotalDifficulty(td *big.Int) {
-	ethutil.Config.Db.Put([]byte("LTD"), td.Bytes())
-	bc.TD = td
-}
-
-func (self *ChainManager) CalcTotalDiff(block *types.Block) (*big.Int, error) {
-	parent := self.GetBlock(block.PrevHash)
-	if parent == nil {
-		return nil, fmt.Errorf("Unable to calculate total diff without known parent %x", block.PrevHash)
-	}
-
-	parentTd := parent.BlockInfo().TD
-
-	uncleDiff := new(big.Int)
-	for _, uncle := range block.Uncles {
-		uncleDiff = uncleDiff.Add(uncleDiff, uncle.Difficulty)
-	}
-
-	td := new(big.Int)
-	td = td.Add(parentTd, uncleDiff)
-	td = td.Add(td, block.Difficulty)
-
-	return td, nil
-}
-
-func (bc *ChainManager) BlockInfo(block *types.Block) types.BlockInfo {
-	bi := types.BlockInfo{}
-	data, _ := ethutil.Config.Db.Get(append(block.Hash(), []byte("Info")...))
-	bi.RlpDecode(data)
-
-	return bi
-}
-
-// Unexported method for writing extra non-essential block info to the db
-func (bc *ChainManager) writeBlockInfo(block *types.Block) {
-	bc.LastBlockNumber++
-	bi := types.BlockInfo{Number: bc.LastBlockNumber, Hash: block.Hash(), Parent: block.PrevHash, TD: bc.TD}
-
-	// For now we use the block hash with the words "info" appended as key
-	ethutil.Config.Db.Put(append(block.Hash(), []byte("Info")...), bi.RlpEncode())
-}
-
-func (bc *ChainManager) Stop() {
-	if bc.CurrentBlock != nil {
-		chainlogger.Infoln("Stopped")
-	}
-}
-
-func (self *ChainManager) InsertChain(chain types.Blocks) error {
-	for _, block := range chain {
-		td, messages, err := self.processor.Process(block)
-		if err != nil {
-			if IsKnownBlockErr(err) {
-				continue
-			}
-
-			chainlogger.Infof("block #%v process failed (%x)\n", block.Number, block.Hash()[:4])
-			chainlogger.Infoln(block)
-			chainlogger.Infoln(err)
-			return err
-		}
-
-		self.add(block)
-		self.SetTotalDifficulty(td)
-		self.eventMux.Post(NewBlockEvent{block})
-		self.eventMux.Post(messages)
-	}
-
-	return nil
-}