Merge branch 'release/0.6.3'

LICENSE

-The MIT License (MIT)
+Copyright (c) 2013-2014, Jeffrey Wilcke. All rights reserved.
 
-Copyright (c) 2013 Jeffrey Wilcke
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
 
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
 
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+MA 02110-1301  USA

README.md

@@ -6,7 +6,7 @@ Ethereum
 Ethereum Go Development package (C) Jeffrey Wilcke
 
 Ethereum is currently in its testing phase. The current state is "Proof
-of Concept 0.6.0". For build instructions see the [Wiki](https://github.com/ethereum/go-ethereum/wiki/Building-Ethereum(Go)).
+of Concept 0.6.3". For build instructions see the [Wiki](https://github.com/ethereum/go-ethereum/wiki/Building-Ethereum(Go)).
 
 Ethereum Go is split up in several sub packages Please refer to each
 individual package for more information.
@@ -15,6 +15,11 @@ individual package for more information.
   3. [ethwire](https://github.com/ethereum/eth-go/tree/master/ethwire)
   4. [ethdb](https://github.com/ethereum/eth-go/tree/master/ethdb)
   5. [ethutil](https://github.com/ethereum/eth-go/tree/master/ethutil)
+  6. [ethpipe](https://github.com/ethereum/eth-go/tree/master/ethpipe)
+  7. [ethvm](https://github.com/ethereum/eth-go/tree/master/ethvm)
+  8. [ethtrie](https://github.com/ethereum/eth-go/tree/master/ethtrie)
+  9. [ethreact](https://github.com/ethereum/eth-go/tree/master/ethreact)
+  10. [ethlog](https://github.com/ethereum/eth-go/tree/master/ethlog)
 
 The [eth](https://github.com/ethereum/eth-go) is the top-level package
 of the Ethereum protocol. It functions as the Ethereum bootstrapping and
@@ -45,7 +50,7 @@ Contribution
 
 If you'd like to contribute to Eth please fork, fix, commit and
 send a pull request. Commits who do not comply with the coding standards
-are ignored. If you send pull requests make absolute sure that you
+are ignored (use gofmt!). If you send pull requests make absolute sure that you
 commit on the `develop` branch and that you do not merge to master.
 Commits that are directly based on master are simply ignored.
 

block_pool.go

+package eth
+
+import (
+	"math"
+	"math/big"
+	"sync"
+
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethutil"
+)
+
+type block struct {
+	peer  *Peer
+	block *ethchain.Block
+}
+
+type BlockPool struct {
+	mut sync.Mutex
+
+	eth *Ethereum
+
+	hashPool [][]byte
+	pool     map[string]*block
+
+	td *big.Int
+}
+
+func NewBlockPool(eth *Ethereum) *BlockPool {
+	return &BlockPool{
+		eth:  eth,
+		pool: make(map[string]*block),
+		td:   ethutil.Big0,
+	}
+}
+
+func (self *BlockPool) HasLatestHash() bool {
+	return self.pool[string(self.eth.BlockChain().CurrentBlock.Hash())] != nil
+}
+
+func (self *BlockPool) HasCommonHash(hash []byte) bool {
+	return self.eth.BlockChain().GetBlock(hash) != nil
+}
+
+func (self *BlockPool) AddHash(hash []byte) {
+	if self.pool[string(hash)] == nil {
+		self.pool[string(hash)] = &block{nil, nil}
+
+		self.hashPool = append([][]byte{hash}, self.hashPool...)
+	}
+}
+
+func (self *BlockPool) SetBlock(b *ethchain.Block) {
+	hash := string(b.Hash())
+
+	if self.pool[string(hash)] == nil {
+		self.pool[hash] = &block{nil, nil}
+	}
+
+	self.pool[hash].block = b
+}
+
+func (self *BlockPool) CheckLinkAndProcess(f func(block *ethchain.Block)) bool {
+	self.mut.Lock()
+	defer self.mut.Unlock()
+
+	if self.IsLinked() {
+		for i, hash := range self.hashPool {
+			block := self.pool[string(hash)].block
+			if block != nil {
+				f(block)
+
+				delete(self.pool, string(hash))
+			} else {
+				self.hashPool = self.hashPool[i:]
+
+				return false
+			}
+		}
+
+		return true
+	}
+
+	return false
+}
+
+func (self *BlockPool) IsLinked() bool {
+	if len(self.hashPool) == 0 {
+		return false
+	}
+
+	block := self.pool[string(self.hashPool[0])].block
+	if block != nil {
+		return self.eth.BlockChain().HasBlock(block.PrevHash)
+	}
+
+	return false
+}
+
+func (self *BlockPool) Take(amount int, peer *Peer) (hashes [][]byte) {
+	self.mut.Lock()
+	defer self.mut.Unlock()
+
+	num := int(math.Min(float64(amount), float64(len(self.pool))))
+	j := 0
+	for i := 0; i < len(self.hashPool) && j < num; i++ {
+		hash := string(self.hashPool[i])
+		if self.pool[hash].peer == nil || self.pool[hash].peer == peer {
+			self.pool[hash].peer = peer
+
+			hashes = append(hashes, self.hashPool[i])
+			j++
+		}
+	}
+
+	return
+}

ethchain/block.go

@@ -3,13 +3,14 @@ package ethchain
 import (
 	"bytes"
 	"fmt"
+	"math/big"
+	_ "strconv"
+	"time"
+
 	"github.com/ethereum/eth-go/ethcrypto"
 	"github.com/ethereum/eth-go/ethstate"
 	"github.com/ethereum/eth-go/ethtrie"
 	"github.com/ethereum/eth-go/ethutil"
-	"math/big"
-	_ "strconv"
-	"time"
 )
 
 type BlockInfo struct {
@@ -63,12 +64,6 @@ type Block struct {
 	TxSha        []byte
 }
 
-// New block takes a raw encoded string
-// XXX DEPRICATED
-func NewBlockFromData(raw []byte) *Block {
-	return NewBlockFromBytes(raw)
-}
-
 func NewBlockFromBytes(raw []byte) *Block {
 	block := &Block{}
 	block.RlpDecode(raw)
@@ -105,7 +100,7 @@ func CreateBlock(root interface{},
 	}
 	block.SetUncles([]*Block{})
 
-	block.state = ethstate.NewState(ethtrie.NewTrie(ethutil.Config.Db, root))
+	block.state = ethstate.New(ethtrie.New(ethutil.Config.Db, root))
 
 	return block
 }
@@ -130,40 +125,15 @@ func (block *Block) Transactions() []*Transaction {
 	return block.transactions
 }
 
-func (block *Block) PayFee(addr []byte, fee *big.Int) bool {
-	contract := block.state.GetStateObject(addr)
-	// If we can't pay the fee return
-	if contract == nil || contract.Amount.Cmp(fee) < 0 /* amount < fee */ {
-		fmt.Println("Contract has insufficient funds", contract.Amount, fee)
-
-		return false
-	}
-
-	base := new(big.Int)
-	contract.Amount = base.Sub(contract.Amount, fee)
-	block.state.Trie.Update(string(addr), string(contract.RlpEncode()))
-
-	data := block.state.Trie.Get(string(block.Coinbase))
-
-	// Get the ether (Coinbase) and add the fee (gief fee to miner)
-	account := ethstate.NewStateObjectFromBytes(block.Coinbase, []byte(data))
-
-	base = new(big.Int)
-	account.Amount = base.Add(account.Amount, fee)
-
-	//block.state.Trie.Update(string(block.Coinbase), string(ether.RlpEncode()))
-	block.state.UpdateStateObject(account)
-
-	return true
-}
-
 func (block *Block) CalcGasLimit(parent *Block) *big.Int {
 	if block.Number.Cmp(big.NewInt(0)) == 0 {
 		return ethutil.BigPow(10, 6)
 	}
 
-	previous := new(big.Int).Mul(big.NewInt(1023), parent.GasLimit)
-	current := new(big.Rat).Mul(new(big.Rat).SetInt(block.GasUsed), big.NewRat(6, 5))
+	// ((1024-1) * parent.gasLimit + (gasUsed * 6 / 5)) / 1024
+
+	previous := new(big.Int).Mul(big.NewInt(1024-1), parent.GasLimit)
+	current := new(big.Rat).Mul(new(big.Rat).SetInt(parent.GasUsed), big.NewRat(6, 5))
 	curInt := new(big.Int).Div(current.Num(), current.Denom())
 
 	result := new(big.Int).Add(previous, curInt)
@@ -172,19 +142,6 @@ func (block *Block) CalcGasLimit(parent *Block) *big.Int {
 	min := big.NewInt(125000)
 
 	return ethutil.BigMax(min, result)
-	/*
-		base := new(big.Int)
-		base2 := new(big.Int)
-		parentGL := bc.CurrentBlock.GasLimit
-		parentUsed := bc.CurrentBlock.GasUsed
-
-		base.Mul(parentGL, big.NewInt(1024-1))
-		base2.Mul(parentUsed, big.NewInt(6))
-		base2.Div(base2, big.NewInt(5))
-		base.Add(base, base2)
-		base.Div(base, big.NewInt(1024))
-	*/
-
 }
 
 func (block *Block) BlockInfo() BlockInfo {
@@ -252,26 +209,10 @@ func (self *Block) SetReceipts(receipts []*Receipt, txs []*Transaction) {
 
 func (block *Block) setTransactions(txs []*Transaction) {
 	block.transactions = txs
-
-	/*
-		trie := ethtrie.NewTrie(ethutil.Config.Db, "")
-		for i, tx := range txs {
-			trie.Update(strconv.Itoa(i), string(tx.RlpEncode()))
-		}
-
-		switch trie.Root.(type) {
-		case string:
-			block.TxSha = []byte(trie.Root.(string))
-		case []byte:
-			block.TxSha = trie.Root.([]byte)
-		default:
-			panic(fmt.Sprintf("invalid root type %T", trie.Root))
-		}
-	*/
 }
 
 func CreateTxSha(receipts Receipts) (sha []byte) {
-	trie := ethtrie.NewTrie(ethutil.Config.Db, "")
+	trie := ethtrie.New(ethutil.Config.Db, "")
 	for i, receipt := range receipts {
 		trie.Update(string(ethutil.NewValue(i).Encode()), string(ethutil.NewValue(receipt.RlpData()).Encode()))
 	}
@@ -313,7 +254,7 @@ func (block *Block) RlpValueDecode(decoder *ethutil.Value) {
 	block.PrevHash = header.Get(0).Bytes()
 	block.UncleSha = header.Get(1).Bytes()
 	block.Coinbase = header.Get(2).Bytes()
-	block.state = ethstate.NewState(ethtrie.NewTrie(ethutil.Config.Db, header.Get(3).Val))
+	block.state = ethstate.New(ethtrie.New(ethutil.Config.Db, header.Get(3).Val))
 	block.TxSha = header.Get(4).Bytes()
 	block.Difficulty = header.Get(5).BigInt()
 	block.Number = header.Get(6).BigInt()
@@ -355,7 +296,7 @@ func NewUncleBlockFromValue(header *ethutil.Value) *Block {
 	block.PrevHash = header.Get(0).Bytes()
 	block.UncleSha = header.Get(1).Bytes()
 	block.Coinbase = header.Get(2).Bytes()
-	block.state = ethstate.NewState(ethtrie.NewTrie(ethutil.Config.Db, header.Get(3).Val))
+	block.state = ethstate.New(ethtrie.New(ethutil.Config.Db, header.Get(3).Val))
 	block.TxSha = header.Get(4).Bytes()
 	block.Difficulty = header.Get(5).BigInt()
 	block.Number = header.Get(6).BigInt()

ethchain/block_chain.go

@@ -2,11 +2,12 @@ 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"
-	"math"
-	"math/big"
 )
 
 var chainlogger = ethlog.NewLogger("CHAIN")
@@ -131,7 +132,7 @@ func (bc *BlockChain) FindCanonicalChain(blocks []*Block, commonBlockHash []byte
 	// 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("[CHAIN] We have found the common parent block, breaking")
+			chainlogger.Infoln("We have found the common parent block, breaking")
 			break
 		}
 		chainDifficulty.Add(chainDifficulty, bc.CalculateBlockTD(block))
@@ -144,13 +145,13 @@ func (bc *BlockChain) FindCanonicalChain(blocks []*Block, commonBlockHash []byte
 	for i := 0; block != nil; block = bc.GetBlock(block.PrevHash) {
 		i++
 		if bytes.Compare(block.Hash(), commonBlockHash) == 0 {
-			chainlogger.Infoln("We have found the common parent block, breaking")
+			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("At genesis block, breaking")
+			chainlogger.Infoln("Found genesis block. Stop")
 			break
 		}
 		curChainDifficulty.Add(curChainDifficulty, bc.CalculateBlockTD(block))
@@ -158,11 +159,11 @@ func (bc *BlockChain) FindCanonicalChain(blocks []*Block, commonBlockHash []byte
 
 	chainlogger.Infoln("Current chain difficulty:", curChainDifficulty)
 	if chainDifficulty.Cmp(curChainDifficulty) == 1 {
-		chainlogger.Infof("The incoming Chain beat our asses, resetting to block: %x", commonBlockHash)
+		chainlogger.Infof("Resetting to block %x. Changing chain.")
 		bc.ResetTillBlockHash(commonBlockHash)
 		return false
 	} else {
-		chainlogger.Infoln("Our chain showed the incoming chain who is boss. Ignoring.")
+		chainlogger.Infoln("Current chain is longest chain. Ignoring incoming chain.")
 		return true
 	}
 }
@@ -207,6 +208,26 @@ func (bc *BlockChain) GenesisBlock() *Block {
 	return bc.genesisBlock
 }
 
+func (self *BlockChain) 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
+}
+
 // Get chain return blocks from hash up to max in RLP format
 func (bc *BlockChain) GetChainFromHash(hash []byte, max uint64) []interface{} {
 	var chain []interface{}
@@ -280,7 +301,7 @@ func AddTestNetFunds(block *Block) {
 	} {
 		codedAddr := ethutil.Hex2Bytes(addr)
 		account := block.state.GetAccount(codedAddr)
-		account.Amount = ethutil.Big("1606938044258990275541962092341162602522202993782792835301376") //ethutil.BigPow(2, 200)
+		account.Balance = ethutil.Big("1606938044258990275541962092341162602522202993782792835301376") //ethutil.BigPow(2, 200)
 		block.state.UpdateStateObject(account)
 	}
 }
@@ -289,7 +310,6 @@ func (bc *BlockChain) setLastBlock() {
 	data, _ := ethutil.Config.Db.Get([]byte("LastBlock"))
 	if len(data) != 0 {
 		block := NewBlockFromBytes(data)
-		//info := bc.BlockInfo(block)
 		bc.CurrentBlock = block
 		bc.LastBlockHash = block.Hash()
 		bc.LastBlockNumber = block.Number.Uint64()
@@ -300,9 +320,8 @@ func (bc *BlockChain) setLastBlock() {
 		bc.genesisBlock.state.Trie.Sync()
 		// Prepare the genesis block
 		bc.Add(bc.genesisBlock)
-
-		//chainlogger.Infof("root %x\n", bm.bc.genesisBlock.State().Root)
-		//bm.bc.genesisBlock.PrintHash()
+		fk := append([]byte("bloom"), bc.genesisBlock.Hash()...)
+		bc.Ethereum.Db().Put(fk, make([]byte, 255))
 	}
 
 	// Set the last know difficulty (might be 0x0 as initial value, Genesis)
@@ -338,6 +357,18 @@ func (bc *BlockChain) GetBlock(hash []byte) *Block {
 	return NewBlockFromBytes(data)
 }
 
+func (self *BlockChain) GetBlockByNumber(num uint64) *Block {
+	block := self.CurrentBlock
+	for ; block.Number.Uint64() != num; block = self.GetBlock(block.PrevHash) {
+	}
+
+	if block.Number.Uint64() == 0 && num != 0 {
+		return nil
+	}
+
+	return block
+}
+
 func (bc *BlockChain) BlockInfoByHash(hash []byte) BlockInfo {
 	bi := BlockInfo{}
 	data, _ := ethutil.Config.Db.Get(append(hash, []byte("Info")...))

ethchain/block_chain_test.go

@@ -3,16 +3,19 @@ package ethchain
 import (
 	"container/list"
 	"fmt"
+	"testing"
+
+	"github.com/ethereum/eth-go/ethcrypto"
 	"github.com/ethereum/eth-go/ethdb"
+	"github.com/ethereum/eth-go/ethreact"
 	"github.com/ethereum/eth-go/ethutil"
 	"github.com/ethereum/eth-go/ethwire"
-	"testing"
 )
 
 // Implement our EthTest Manager
 type TestManager struct {
 	stateManager *StateManager
-	reactor      *ethutil.ReactorEngine
+	reactor      *ethreact.ReactorEngine
 
 	txPool     *TxPool
 	blockChain *BlockChain
@@ -47,16 +50,24 @@ func (tm *TestManager) StateManager() *StateManager {
 	return tm.stateManager
 }
 
-func (tm *TestManager) Reactor() *ethutil.ReactorEngine {
+func (tm *TestManager) Reactor() *ethreact.ReactorEngine {
 	return tm.reactor
 }
 func (tm *TestManager) Broadcast(msgType ethwire.MsgType, data []interface{}) {
 	fmt.Println("Broadcast not implemented")
 }
 
-func NewTestManager() *TestManager {
+func (tm *TestManager) ClientIdentity() ethwire.ClientIdentity {
+	return nil
+}
+func (tm *TestManager) KeyManager() *ethcrypto.KeyManager {
+	return nil
+}
 
-	ethutil.ReadConfig(".ethtest", "/tmp/ethtest", "", "ETH")
+func (tm *TestManager) Db() ethutil.Database { return nil }
+
+func NewTestManager() *TestManager {
+	ethutil.ReadConfig(".ethtest", "/tmp/ethtest", "ETH")
 
 	db, err := ethdb.NewMemDatabase()
 	if err != nil {
@@ -66,7 +77,7 @@ func NewTestManager() *TestManager {
 	ethutil.Config.Db = db
 
 	testManager := &TestManager{}
-	testManager.reactor = ethutil.NewReactorEngine()
+	testManager.reactor = ethreact.New()
 
 	testManager.txPool = NewTxPool(testManager)
 	testManager.blockChain = NewBlockChain(testManager)

ethchain/bloom.go

+package ethchain
+
+type BloomFilter struct {
+	bin []byte
+}
+
+func NewBloomFilter(bin []byte) *BloomFilter {
+	if bin == nil {
+		bin = make([]byte, 256)
+	}
+
+	return &BloomFilter{
+		bin: bin,
+	}
+}
+
+func (self *BloomFilter) Set(addr []byte) {
+	if len(addr) < 8 {
+		chainlogger.Warnf("err: bloom set to small: %x\n", addr)
+
+		return
+	}
+
+	for _, i := range addr[len(addr)-8:] {
+		self.bin[i] = 1
+	}
+}
+
+func (self *BloomFilter) Search(addr []byte) bool {
+	if len(addr) < 8 {
+		chainlogger.Warnf("err: bloom search to small: %x\n", addr)
+
+		return false
+	}
+
+	for _, i := range addr[len(addr)-8:] {
+		if self.bin[i] == 0 {
+			return false
+		}
+	}
+
+	return true
+}
+
+func (self *BloomFilter) Bin() []byte {
+	return self.bin
+}

ethchain/bloom_test.go

+package ethchain
+
+import "testing"
+
+func TestBloomFilter(t *testing.T) {
+	bf := NewBloomFilter(nil)
+
+	a := []byte{1, 2, 3, 4, 5, 6, 7, 8, 9, 0}
+	bf.Set(a)
+
+	b := []byte{10, 11, 12, 13, 14, 15, 16, 17, 18, 19}
+
+	if bf.Search(a) == false {
+		t.Error("Expected 'a' to yield true using a bloom filter")
+	}
+
+	if bf.Search(b) {
+		t.Error("Expected 'b' not to field trie using a bloom filter")
+	}
+}

ethchain/dagger.go

@@ -3,6 +3,7 @@ package ethchain
 import (
 	"github.com/ethereum/eth-go/ethcrypto"
 	"github.com/ethereum/eth-go/ethlog"
+	"github.com/ethereum/eth-go/ethreact"
 	"github.com/ethereum/eth-go/ethutil"
 	"github.com/obscuren/sha3"
 	"hash"
@@ -14,7 +15,7 @@ import (
 var powlogger = ethlog.NewLogger("POW")
 
 type PoW interface {
-	Search(block *Block, reactChan chan ethutil.React) []byte
+	Search(block *Block, reactChan chan ethreact.Event) []byte
 	Verify(hash []byte, diff *big.Int, nonce []byte) bool
 	GetHashrate() int64
 }
@@ -28,7 +29,7 @@ func (pow *EasyPow) GetHashrate() int64 {
 	return pow.HashRate
 }
 
-func (pow *EasyPow) Search(block *Block, reactChan chan ethutil.React) []byte {
+func (pow *EasyPow) Search(block *Block, reactChan chan ethreact.Event) []byte {
 	r := rand.New(rand.NewSource(time.Now().UnixNano()))
 	hash := block.HashNoNonce()
 	diff := block.Difficulty

ethchain/filter.go

+package ethchain
+
+import (
+	"bytes"
+	"fmt"
+
+	"github.com/ethereum/eth-go/ethstate"
+	"github.com/ethereum/eth-go/ethutil"
+	"gopkg.in/qml.v1"
+)
+
+type data struct {
+	id, address []byte
+}
+
+// Filtering interface
+type Filter struct {
+	eth      EthManager
+	earliest []byte
+	latest   []byte
+	skip     int
+	from, to [][]byte
+	max      int
+
+	altered []data
+}
+
+// Create a new filter which uses a bloom filter on blocks to figure out whether a particular block
+// is interesting or not.
+func NewFilter(eth EthManager) *Filter {
+	return &Filter{eth: eth}
+}
+
+func NewFilterFromMap(object map[string]interface{}, eth EthManager) *Filter {
+	filter := NewFilter(eth)
+
+	if object["earliest"] != nil {
+		earliest := object["earliest"]
+		if e, ok := earliest.(string); ok {
+			filter.SetEarliestBlock(ethutil.Hex2Bytes(e))
+		} else {
+			filter.SetEarliestBlock(earliest)
+		}
+	}
+
+	if object["latest"] != nil {
+		latest := object["latest"]
+		if l, ok := latest.(string); ok {
+			filter.SetLatestBlock(ethutil.Hex2Bytes(l))
+		} else {
+			filter.SetLatestBlock(latest)
+		}
+	}
+
+	if object["to"] != nil {
+		filter.AddTo(ethutil.Hex2Bytes(object["to"].(string)))
+	}
+
+	if object["from"] != nil {
+		filter.AddFrom(ethutil.Hex2Bytes(object["from"].(string)))
+	}
+
+	if object["max"] != nil {
+		filter.SetMax(object["max"].(int))
+	}
+
+	if object["skip"] != nil {
+		filter.SetSkip(object["skip"].(int))
+	}
+
+	if object["altered"] != nil {
+		filter.altered = makeAltered(object["altered"])
+	}
+
+	return filter
+}
+
+func (self *Filter) AddAltered(id, address []byte) {
+	self.altered = append(self.altered, data{id, address})
+}
+
+// Set the earliest and latest block for filtering.
+// -1 = latest block (i.e., the current block)
+// hash = particular hash from-to
+func (self *Filter) SetEarliestBlock(earliest interface{}) {
+	e := ethutil.NewValue(earliest)
+
+	// Check for -1 (latest) otherwise assume bytes
+	if e.Int() == -1 {
+		self.earliest = self.eth.BlockChain().CurrentBlock.Hash()
+	} else if e.Len() > 0 {
+		self.earliest = e.Bytes()
+	} else {
+		panic(fmt.Sprintf("earliest has to be either -1 or a valid hash: %v (%T)", e, e.Val))
+	}
+}
+
+func (self *Filter) SetLatestBlock(latest interface{}) {
+	l := ethutil.NewValue(latest)
+
+	// Check for -1 (latest) otherwise assume bytes
+	if l.Int() == -1 {
+		self.latest = self.eth.BlockChain().CurrentBlock.Hash()
+	} else if l.Len() > 0 {
+		self.latest = l.Bytes()
+	} else {
+		panic(fmt.Sprintf("latest has to be either -1 or a valid hash: %v", l))
+	}
+}
+
+func (self *Filter) SetFrom(addr [][]byte) {
+	self.from = addr
+}
+
+func (self *Filter) AddFrom(addr []byte) {
+	self.from = append(self.from, addr)
+}
+
+func (self *Filter) SetTo(addr [][]byte) {
+	self.to = addr
+}
+
+func (self *Filter) AddTo(addr []byte) {
+	self.to = append(self.to, addr)
+}
+
+func (self *Filter) SetMax(max int) {
+	self.max = max
+}
+
+func (self *Filter) SetSkip(skip int) {
+	self.skip = skip
+}
+
+// Run filters messages with the current parameters set
+func (self *Filter) Find() []*ethstate.Message {
+	var messages []*ethstate.Message
+
+	block := self.eth.BlockChain().GetBlock(self.latest)
+
+	// skip N blocks (useful for pagination)
+	if self.skip > 0 {
+		for i := 0; i < i; i++ {
+			block = self.eth.BlockChain().GetBlock(block.PrevHash)
+		}
+	}
+
+	// Start block filtering
+	quit := false
+	for i := 1; !quit && block != nil; i++ {
+		// Mark last check
+		if self.max == i || (len(self.earliest) > 0 && bytes.Compare(block.Hash(), self.earliest) == 0) {
+			quit = true
+		}
+
+		// Use bloom filtering to see if this block is interesting given the
+		// current parameters
+		if self.bloomFilter(block) {
+			// Get the messages of the block
+			msgs, err := self.eth.StateManager().GetMessages(block)
+			if err != nil {
+				chainlogger.Warnln("err: filter get messages ", err)
+
+				break
+			}
+
+			messages = append(messages, self.FilterMessages(msgs)...)
+		}
+
+		block = self.eth.BlockChain().GetBlock(block.PrevHash)
+	}
+
+	return messages
+}
+
+func includes(addresses [][]byte, a []byte) (found bool) {
+	for _, addr := range addresses {
+		if bytes.Compare(addr, a) == 0 {
+			return true
+		}
+	}
+
+	return
+}
+
+func (self *Filter) FilterMessages(msgs []*ethstate.Message) []*ethstate.Message {
+	var messages []*ethstate.Message
+
+	// Filter the messages for interesting stuff
+	for _, message := range msgs {
+		if len(self.to) > 0 && !includes(self.to, message.To) {
+			continue
+		}
+
+		if len(self.from) > 0 && !includes(self.from, message.From) {
+			continue
+		}
+
+		var match bool
+		if len(self.altered) == 0 {
+			match = true
+		}
+
+		for _, item := range self.altered {
+			if len(item.id) > 0 && bytes.Compare(message.To, item.id) != 0 {
+				continue
+			}
+
+			if len(item.address) > 0 && !includes(message.ChangedAddresses, item.address) {
+				continue
+			}
+
+			match = true
+			break
+		}
+
+		if !match {
+			continue
+		}
+
+		messages = append(messages, message)
+	}
+
+	return messages
+}
+
+func (self *Filter) bloomFilter(block *Block) bool {
+	fk := append([]byte("bloom"), block.Hash()...)
+	bin, err := self.eth.Db().Get(fk)
+	if err != nil {
+		panic(err)
+	}
+
+	bloom := NewBloomFilter(bin)
+
+	var fromIncluded, toIncluded bool
+	if len(self.from) > 0 {
+		for _, from := range self.from {
+			if bloom.Search(from) {
+				fromIncluded = true
+				break
+			}
+		}
+	} else {
+		fromIncluded = true
+	}
+
+	if len(self.to) > 0 {
+		for _, to := range self.to {
+			if bloom.Search(to) {
+				toIncluded = true
+				break
+			}
+		}
+	} else {
+		toIncluded = true
+	}
+
+	return fromIncluded && toIncluded
+}
+
+// Conversion methodn
+func mapToData(m map[string]interface{}) (d data) {
+	if str, ok := m["id"].(string); ok {
+		d.id = ethutil.Hex2Bytes(str)
+	}
+
+	if str, ok := m["at"].(string); ok {
+		d.address = ethutil.Hex2Bytes(str)
+	}
+
+	return
+}
+
+// data can come in in the following formats:
+// ["aabbccdd", {id: "ccddee", at: "11223344"}], "aabbcc", {id: "ccddee", at: "1122"}
+func makeAltered(v interface{}) (d []data) {
+	if str, ok := v.(string); ok {
+		d = append(d, data{ethutil.Hex2Bytes(str), nil})
+	} else if obj, ok := v.(map[string]interface{}); ok {
+		d = append(d, mapToData(obj))
+	} else if slice, ok := v.([]interface{}); ok {
+		for _, item := range slice {
+			d = append(d, makeAltered(item)...)
+		}
+	} else if qList, ok := v.(*qml.List); ok {
+		var s []interface{}
+		qList.Convert(&s)
+
+		fmt.Println(s)
+
+		d = makeAltered(s)
+	} else if qMap, ok := v.(*qml.Map); ok {
+		var m map[string]interface{}
+		qMap.Convert(&m)
+		fmt.Println(m)
+
+		d = makeAltered(m)
+	} else {
+		panic(fmt.Sprintf("makeAltered err (unknown conversion): %T\n", v))
+	}
+
+	return
+}

ethchain/filter_test.go

+package ethchain
+
+import "testing"
+
+func TestFilter(t *testing.T) {
+	filter := NewFilter()
+}

ethchain/genesis.go

 package ethchain
 
 import (
+	"math/big"
+
 	"github.com/ethereum/eth-go/ethcrypto"
 	"github.com/ethereum/eth-go/ethutil"
-	"math/big"
 )
 
 /*
@@ -26,7 +27,8 @@ var GenesisHeader = []interface{}{
 	// tx sha
 	"",
 	// Difficulty
-	ethutil.BigPow(2, 22),
+	//ethutil.BigPow(2, 22),
+	big.NewInt(4096),
 	// Number
 	ethutil.Big0,
 	// Block minimum gas price

ethchain/state_manager.go

@@ -4,14 +4,16 @@ import (
 	"bytes"
 	"container/list"
 	"fmt"
+	"math/big"
+	"sync"
+	"time"
+
 	"github.com/ethereum/eth-go/ethcrypto"
 	"github.com/ethereum/eth-go/ethlog"
+	"github.com/ethereum/eth-go/ethreact"
 	"github.com/ethereum/eth-go/ethstate"
 	"github.com/ethereum/eth-go/ethutil"
 	"github.com/ethereum/eth-go/ethwire"
-	"math/big"
-	"sync"
-	"time"
 )
 
 var statelogger = ethlog.NewLogger("STATE")
@@ -36,13 +38,14 @@ type EthManager interface {
 	BlockChain() *BlockChain
 	TxPool() *TxPool
 	Broadcast(msgType ethwire.MsgType, data []interface{})
-	Reactor() *ethutil.ReactorEngine
+	Reactor() *ethreact.ReactorEngine
 	PeerCount() int
 	IsMining() bool
 	IsListening() bool
 	Peers() *list.List
 	KeyManager() *ethcrypto.KeyManager
 	ClientIdentity() ethwire.ClientIdentity
+	Db() ethutil.Database
 }
 
 type StateManager struct {
@@ -233,7 +236,12 @@ func (sm *StateManager) Process(block *Block, dontReact bool) (err error) {
 
 		// Add the block to the chain
 		sm.bc.Add(block)
-		sm.notifyChanges(state)
+
+		// Create a bloom bin for this block
+		filter := sm.createBloomFilter(state)
+		// Persist the data
+		fk := append([]byte("bloom"), block.Hash()...)
+		sm.Ethereum.Db().Put(fk, filter.Bin())
 
 		statelogger.Infof("Added block #%d (%x)\n", block.Number, block.Hash())
 		if dontReact == false {
@@ -361,14 +369,56 @@ func (sm *StateManager) Stop() {
 	sm.bc.Stop()
 }
 
-func (sm *StateManager) notifyChanges(state *ethstate.State) {
-	for addr, stateObject := range state.Manifest().ObjectChanges {
-		sm.Ethereum.Reactor().Post("object:"+addr, stateObject)
+// Manifest will handle both creating notifications and generating bloom bin data
+func (sm *StateManager) createBloomFilter(state *ethstate.State) *BloomFilter {
+	bloomf := NewBloomFilter(nil)
+
+	/*
+		for addr, stateObject := range state.Manifest().ObjectChanges {
+			// Set the bloom filter's bin
+			bloomf.Set([]byte(addr))
+
+			sm.Ethereum.Reactor().Post("object:"+addr, stateObject)
+		}
+	*/
+	for _, msg := range state.Manifest().Messages {
+		bloomf.Set(msg.To)
+		bloomf.Set(msg.From)
 	}
 
-	for stateObjectAddr, mappedObjects := range state.Manifest().StorageChanges {
-		for addr, value := range mappedObjects {
-			sm.Ethereum.Reactor().Post("storage:"+stateObjectAddr+":"+addr, &ethstate.StorageState{[]byte(stateObjectAddr), []byte(addr), value})
+	sm.Ethereum.Reactor().Post("messages", state.Manifest().Messages)
+
+	/*
+		for stateObjectAddr, mappedObjects := range state.Manifest().StorageChanges {
+			for addr, value := range mappedObjects {
+				// Set the bloom filter's bin
+				bloomf.Set(ethcrypto.Sha3Bin([]byte(stateObjectAddr + addr)))
+
+				sm.Ethereum.Reactor().Post("storage:"+stateObjectAddr+":"+addr, &ethstate.StorageState{[]byte(stateObjectAddr), []byte(addr), value})
+			}
 		}
+	*/
+
+	return bloomf
+}
+
+func (sm *StateManager) GetMessages(block *Block) (messages []*ethstate.Message, err error) {
+	if !sm.bc.HasBlock(block.PrevHash) {
+		return nil, ParentError(block.PrevHash)
 	}
+
+	sm.lastAttemptedBlock = block
+
+	var (
+		parent = sm.bc.GetBlock(block.PrevHash)
+		state  = parent.State().Copy()
+	)
+
+	defer state.Reset()
+
+	sm.ApplyDiff(state, parent, block)
+
+	sm.AccumelateRewards(state, block)
+
+	return state.Manifest().Messages, nil
 }

ethchain/state_transition.go

@@ -2,11 +2,12 @@ package ethchain
 
 import (
 	"fmt"
+	"math/big"
+
 	"github.com/ethereum/eth-go/ethstate"
 	"github.com/ethereum/eth-go/ethtrie"
 	"github.com/ethereum/eth-go/ethutil"
 	"github.com/ethereum/eth-go/ethvm"
-	"math/big"
 )
 
 /*
@@ -94,8 +95,8 @@ func (self *StateTransition) BuyGas() error {
 	var err error
 
 	sender := self.Sender()
-	if sender.Amount.Cmp(self.tx.GasValue()) < 0 {
-		return fmt.Errorf("Insufficient funds to pre-pay gas. Req %v, has %v", self.tx.GasValue(), sender.Amount)
+	if sender.Balance.Cmp(self.tx.GasValue()) < 0 {
+		return fmt.Errorf("Insufficient funds to pre-pay gas. Req %v, has %v", self.tx.GasValue(), sender.Balance)
 	}
 
 	coinbase := self.Coinbase()
@@ -178,8 +179,8 @@ func (self *StateTransition) TransitionState() (err error) {
 		return
 	}
 
-	if sender.Amount.Cmp(self.value) < 0 {
-		return fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, sender.Amount)
+	if sender.Balance.Cmp(self.value) < 0 {
+		return fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, sender.Balance)
 	}
 
 	var snapshot *ethstate.State
@@ -210,6 +211,14 @@ func (self *StateTransition) TransitionState() (err error) {
 		snapshot = self.state.Copy()
 	}
 
+	msg := self.state.Manifest().AddMessage(&ethstate.Message{
+		To: receiver.Address(), From: sender.Address(),
+		Input:  self.tx.Data,
+		Origin: sender.Address(),
+		Block:  self.block.Hash(), Timestamp: self.block.Time, Coinbase: self.block.Coinbase, Number: self.block.Number,
+		Value: self.value,
+	})
+
 	// Process the init code and create 'valid' contract
 	if IsContractAddr(self.receiver) {
 		// Evaluate the initialization script
@@ -217,7 +226,7 @@ func (self *StateTransition) TransitionState() (err error) {
 		// script section for the state object.
 		self.data = nil
 
-		code, err := self.Eval(receiver.Init(), receiver, "init")
+		code, err := self.Eval(msg, receiver.Init(), receiver, "init")
 		if err != nil {
 			self.state.Set(snapshot)
 
@@ -225,14 +234,17 @@ func (self *StateTransition) TransitionState() (err error) {
 		}
 
 		receiver.Code = code
+		msg.Output = code
 	} else {
 		if len(receiver.Code) > 0 {
-			_, err = self.Eval(receiver.Code, receiver, "code")
+			ret, err := self.Eval(msg, receiver.Code, receiver, "code")
 			if err != nil {
 				self.state.Set(snapshot)
 
 				return fmt.Errorf("Error during code execution %v", err)
 			}
+
+			msg.Output = ret
 		}
 	}
 
@@ -240,8 +252,8 @@ func (self *StateTransition) TransitionState() (err error) {
 }
 
 func (self *StateTransition) transferValue(sender, receiver *ethstate.StateObject) error {
-	if sender.Amount.Cmp(self.value) < 0 {
-		return fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, sender.Amount)
+	if sender.Balance.Cmp(self.value) < 0 {
+		return fmt.Errorf("Insufficient funds to transfer value. Req %v, has %v", self.value, sender.Balance)
 	}
 
 	// Subtract the amount from the senders account
@@ -252,12 +264,12 @@ func (self *StateTransition) transferValue(sender, receiver *ethstate.StateObjec
 	return nil
 }
 
-func (self *StateTransition) Eval(script []byte, context *ethstate.StateObject, typ string) (ret []byte, err error) {
+func (self *StateTransition) Eval(msg *ethstate.Message, script []byte, context *ethstate.StateObject, typ string) (ret []byte, err error) {
 	var (
 		transactor    = self.Sender()
 		state         = self.state
 		env           = NewEnv(state, self.tx, self.block)
-		callerClosure = ethvm.NewClosure(transactor, context, script, self.gas, self.gasPrice)
+		callerClosure = ethvm.NewClosure(msg, transactor, context, script, self.gas, self.gasPrice)
 	)
 
 	vm := ethvm.New(env)
@@ -277,7 +289,7 @@ func MakeContract(tx *Transaction, state *ethstate.State) *ethstate.StateObject
 
 		contract := state.NewStateObject(addr)
 		contract.InitCode = tx.Data
-		contract.State = ethstate.NewState(ethtrie.NewTrie(ethutil.Config.Db, ""))
+		contract.State = ethstate.New(ethtrie.New(ethutil.Config.Db, ""))
 
 		return contract
 	}

ethchain/transaction.go

@@ -3,10 +3,11 @@ package ethchain
 import (
 	"bytes"
 	"fmt"
+	"math/big"
+
 	"github.com/ethereum/eth-go/ethcrypto"
 	"github.com/ethereum/eth-go/ethutil"
 	"github.com/obscuren/secp256k1-go"
-	"math/big"
 )
 
 var ContractAddr = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
@@ -130,7 +131,7 @@ func (tx *Transaction) RlpData() interface{} {
 
 	// TODO Remove prefixing zero's
 
-	return append(data, tx.v, tx.r, tx.s)
+	return append(data, tx.v, new(big.Int).SetBytes(tx.r).Bytes(), new(big.Int).SetBytes(tx.s).Bytes())
 }
 
 func (tx *Transaction) RlpValue() *ethutil.Value {

ethchain/transaction_pool.go

@@ -4,11 +4,12 @@ import (
 	"bytes"
 	"container/list"
 	"fmt"
+	"math/big"
+	"sync"
+
 	"github.com/ethereum/eth-go/ethlog"
 	"github.com/ethereum/eth-go/ethstate"
 	"github.com/ethereum/eth-go/ethwire"
-	"math/big"
-	"sync"
 )
 
 var txplogger = ethlog.NewLogger("TXP")
@@ -91,78 +92,6 @@ func (pool *TxPool) addTransaction(tx *Transaction) {
 	pool.Ethereum.Broadcast(ethwire.MsgTxTy, []interface{}{tx.RlpData()})
 }
 
-/*
-// Process transaction validates the Tx and processes funds from the
-// sender to the recipient.
-func (pool *TxPool) ProcessTransaction(tx *Transaction, state *State, toContract bool) (gas *big.Int, err error) {
-	fmt.Printf("state root before update %x\n", state.Root())
-	defer func() {
-		if r := recover(); r != nil {
-			txplogger.Infoln(r)
-			err = fmt.Errorf("%v", r)
-		}
-	}()
-
-	gas = new(big.Int)
-	addGas := func(g *big.Int) { gas.Add(gas, g) }
-	addGas(GasTx)
-
-	// Get the sender
-	sender := state.GetAccount(tx.Sender())
-
-	if sender.Nonce != tx.Nonce {
-		err = NonceError(tx.Nonce, sender.Nonce)
-		return
-	}
-
-	sender.Nonce += 1
-	defer func() {
-		//state.UpdateStateObject(sender)
-		// Notify all subscribers
-		pool.Ethereum.Reactor().Post("newTx:post", tx)
-	}()
-
-	txTotalBytes := big.NewInt(int64(len(tx.Data)))
-	txTotalBytes.Div(txTotalBytes, ethutil.Big32)
-	addGas(new(big.Int).Mul(txTotalBytes, GasSStore))
-
-	rGas := new(big.Int).Set(gas)
-	rGas.Mul(gas, tx.GasPrice)
-
-	// Make sure there's enough in the sender's account. Having insufficient
-	// funds won't invalidate this transaction but simple ignores it.
-	totAmount := new(big.Int).Add(tx.Value, rGas)
-	if sender.Amount.Cmp(totAmount) < 0 {
-		err = fmt.Errorf("[TXPL] Insufficient amount in sender's (%x) account", tx.Sender())
-		return
-	}
-	state.UpdateStateObject(sender)
-	fmt.Printf("state root after sender update %x\n", state.Root())
-
-	// Get the receiver
-	receiver := state.GetAccount(tx.Recipient)
-
-	// Send Tx to self
-	if bytes.Compare(tx.Recipient, tx.Sender()) == 0 {
-		// Subtract the fee
-		sender.SubAmount(rGas)
-	} else {
-		// Subtract the amount from the senders account
-		sender.SubAmount(totAmount)
-
-		// Add the amount to receivers account which should conclude this transaction
-		receiver.AddAmount(tx.Value)
-
-		state.UpdateStateObject(receiver)
-		fmt.Printf("state root after receiver update %x\n", state.Root())
-	}
-
-	txplogger.Infof("[TXPL] Processed Tx %x\n", tx.Hash())
-
-	return
-}
-*/
-
 func (pool *TxPool) ValidateTransaction(tx *Transaction) error {
 	// Get the last block so we can retrieve the sender and receiver from
 	// the merkle trie
@@ -183,7 +112,7 @@ func (pool *TxPool) ValidateTransaction(tx *Transaction) error {
 	totAmount := new(big.Int).Set(tx.Value)
 	// Make sure there's enough in the sender's account. Having insufficient
 	// funds won't invalidate this transaction but simple ignores it.
-	if sender.Amount.Cmp(totAmount) < 0 {
+	if sender.Balance.Cmp(totAmount) < 0 {
 		return fmt.Errorf("[TXPL] Insufficient amount in sender's (%x) account", tx.Sender())
 	}
 

ethchain/vm_env.go

 package ethchain
 
 import (
-	"github.com/ethereum/eth-go/ethstate"
 	"math/big"
+
+	"github.com/ethereum/eth-go/ethstate"
 )
 
 type VMEnv struct {
@@ -25,5 +26,6 @@ func (self *VMEnv) PrevHash() []byte       { return self.block.PrevHash }
 func (self *VMEnv) Coinbase() []byte       { return self.block.Coinbase }
 func (self *VMEnv) Time() int64            { return self.block.Time }
 func (self *VMEnv) Difficulty() *big.Int   { return self.block.Difficulty }
+func (self *VMEnv) BlockHash() []byte      { return self.block.Hash() }
 func (self *VMEnv) Value() *big.Int        { return self.tx.Value }
 func (self *VMEnv) State() *ethstate.State { return self.state }

ethcrypto/mnemonic.go

@@ -2,40 +2,9 @@ package ethcrypto
 
 import (
 	"fmt"
-	"io/ioutil"
-	"os"
-	"path"
-	"path/filepath"
 	"strconv"
-	"strings"
 )
 
-func InitWords(wordsPath string) {
-	filename := path.Join(wordsPath, "mnemonic.words.lst")
-	if _, err := os.Stat(filename); os.IsNotExist(err) {
-		fmt.Printf("reading mnemonic word list file from supplied path not found. Looked in %s. Trying next option.\n", filename)
-
-		dir := path.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "eth-go", "ethcrypto")
-		filename = path.Join(dir, "mnemonic.words.lst")
-		if _, err := os.Stat(filename); os.IsNotExist(err) {
-			fmt.Printf("reading mnemonic word list file 'mnemonic.words.lst' from source folder failed: %s.\n", filename)
-			dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
-			if err != nil {
-				panic(fmt.Errorf("problem getting current folder: ", err))
-			}
-			filename = path.Join(dir, "mnemonic.words.lst")
-		}
-	}
-
-	content, err := ioutil.ReadFile(filename)
-	if err != nil {
-		panic(fmt.Errorf("All options for finding the mnemonic word list file 'mnemonic.words.lst' failed: ", err))
-	}
-	words = strings.Split(string(content), "\n")
-}
-
-var words []string
-
 // TODO: See if we can refactor this into a shared util lib if we need it multiple times
 func IndexOf(slice []string, value string) int64 {
 	for p, v := range slice {
@@ -48,7 +17,7 @@ func IndexOf(slice []string, value string) int64 {
 
 func MnemonicEncode(message string) []string {
 	var out []string
-	n := int64(len(words))
+	n := int64(len(MnemonicWords))
 
 	for i := 0; i < len(message); i += (len(message) / 8) {
 		x := message[i : i+8]
@@ -56,22 +25,22 @@ func MnemonicEncode(message string) []string {
 		w1 := (bit % n)
 		w2 := ((bit / n) + w1) % n
 		w3 := ((bit / n / n) + w2) % n
-		out = append(out, words[w1], words[w2], words[w3])
+		out = append(out, MnemonicWords[w1], MnemonicWords[w2], MnemonicWords[w3])
 	}
 	return out
 }
 
 func MnemonicDecode(wordsar []string) string {
 	var out string
-	n := int64(len(words))
+	n := int64(len(MnemonicWords))
 
 	for i := 0; i < len(wordsar); i += 3 {
 		word1 := wordsar[i]
 		word2 := wordsar[i+1]
 		word3 := wordsar[i+2]
-		w1 := IndexOf(words, word1)
-		w2 := IndexOf(words, word2)
-		w3 := IndexOf(words, word3)
+		w1 := IndexOf(MnemonicWords, word1)
+		w2 := IndexOf(MnemonicWords, word2)
+		w3 := IndexOf(MnemonicWords, word3)
 
 		y := (w2 - w1) % n
 		z := (w3 - w2) % n

ethereum.go

@@ -3,24 +3,27 @@ package eth
 import (
 	"container/list"
 	"fmt"
-	"github.com/ethereum/eth-go/ethchain"
-	"github.com/ethereum/eth-go/ethcrypto"
-	"github.com/ethereum/eth-go/ethlog"
-	"github.com/ethereum/eth-go/ethrpc"
-	"github.com/ethereum/eth-go/ethutil"
-	"github.com/ethereum/eth-go/ethwire"
-	"io/ioutil"
 	"math/rand"
 	"net"
-	"net/http"
 	"strconv"
 	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
+
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethcrypto"
+	"github.com/ethereum/eth-go/ethlog"
+	"github.com/ethereum/eth-go/ethreact"
+	"github.com/ethereum/eth-go/ethrpc"
+	"github.com/ethereum/eth-go/ethutil"
+	"github.com/ethereum/eth-go/ethwire"
 )
 
-const seedTextFileUri string = "http://www.ethereum.org/servers.poc3.txt"
+const (
+	seedTextFileUri string = "http://www.ethereum.org/servers.poc3.txt"
+	seedNodeAddress        = "54.76.56.74:30303"
+)
 
 var ethlogger = ethlog.NewLogger("SERV")
 
@@ -41,8 +44,8 @@ type Ethereum struct {
 	// Channel for shutting down the ethereum
 	shutdownChan chan bool
 	quit         chan bool
+
 	// DB interface
-	//db *ethdb.LDBDatabase
 	db ethutil.Database
 	// State manager for processing new blocks and managing the over all states
 	stateManager *ethchain.StateManager
@@ -51,6 +54,8 @@ type Ethereum struct {
 	txPool *ethchain.TxPool
 	// The canonical chain
 	blockChain *ethchain.BlockChain
+	// The block pool
+	blockPool *BlockPool
 	// Peers (NYI)
 	peers *list.List
 	// Nonce
@@ -73,7 +78,7 @@ type Ethereum struct {
 
 	listening bool
 
-	reactor *ethutil.ReactorEngine
+	reactor *ethreact.ReactorEngine
 
 	RpcServer *ethrpc.JsonRpcServer
 
@@ -111,8 +116,9 @@ func New(db ethutil.Database, clientIdentity ethwire.ClientIdentity, keyManager
 		clientIdentity: clientIdentity,
 		isUpToDate:     true,
 	}
-	ethereum.reactor = ethutil.NewReactorEngine()
+	ethereum.reactor = ethreact.New()
 
+	ethereum.blockPool = NewBlockPool(ethereum)
 	ethereum.txPool = ethchain.NewTxPool(ethereum)
 	ethereum.blockChain = ethchain.NewBlockChain(ethereum)
 	ethereum.stateManager = ethchain.NewStateManager(ethereum)
@@ -123,7 +129,7 @@ func New(db ethutil.Database, clientIdentity ethwire.ClientIdentity, keyManager
 	return ethereum, nil
 }
 
-func (s *Ethereum) Reactor() *ethutil.ReactorEngine {
+func (s *Ethereum) Reactor() *ethreact.ReactorEngine {
 	return s.reactor
 }
 
@@ -146,6 +152,9 @@ func (s *Ethereum) StateManager() *ethchain.StateManager {
 func (s *Ethereum) TxPool() *ethchain.TxPool {
 	return s.txPool
 }
+func (self *Ethereum) Db() ethutil.Database {
+	return self.db
+}
 
 func (s *Ethereum) ServerCaps() Caps {
 	return s.serverCaps
@@ -355,6 +364,7 @@ func (s *Ethereum) ReapDeadPeerHandler() {
 
 // Start the ethereum
 func (s *Ethereum) Start(seed bool) {
+	s.reactor.Start()
 	// Bind to addr and port
 	ln, err := net.Listen("tcp", ":"+s.Port)
 	if err != nil {
@@ -420,22 +430,10 @@ func (s *Ethereum) Seed() {
 		}
 		// Connect to Peer list
 		s.ProcessPeerList(peers)
-	} else {
-		// Fallback to servers.poc3.txt
-		resp, err := http.Get(seedTextFileUri)
-		if err != nil {
-			ethlogger.Warnln("Fetching seed failed:", err)
-			return
-		}
-		defer resp.Body.Close()
-		body, err := ioutil.ReadAll(resp.Body)
-		if err != nil {
-			ethlogger.Warnln("Reading seed failed:", err)
-			return
-		}
-
-		s.ConnectToPeer(string(body))
 	}
+
+	// XXX tmp
+	s.ConnectToPeer(seedNodeAddress)
 }
 
 func (s *Ethereum) peerHandler(listener net.Listener) {
@@ -466,6 +464,8 @@ func (s *Ethereum) Stop() {
 	}
 	s.txPool.Stop()
 	s.stateManager.Stop()
+	s.reactor.Flush()
+	s.reactor.Stop()
 
 	ethlogger.Infoln("Server stopped")
 	close(s.shutdownChan)

ethlog/loggers.go

@@ -39,7 +39,9 @@ func (msg *logMessage) send(logger LogSystem) {
 
 var logMessages chan (*logMessage)
 var logSystems []LogSystem
-var quit chan bool
+var quit chan chan error
+var drained chan bool
+var mutex = sync.Mutex{}
 
 type LogLevel uint8
 
@@ -52,34 +54,55 @@ const (
 	DebugDetailLevel
 )
 
+func dispatch(msg *logMessage) {
+	for _, logSystem := range logSystems {
+		if logSystem.GetLogLevel() >= msg.LogLevel {
+			msg.send(logSystem)
+		}
+	}
+}
+
 // log messages are dispatched to log writers
 func start() {
-out:
 	for {
 		select {
+		case status := <-quit:
+			status <- nil
+			return
 		case msg := <-logMessages:
-			for _, logSystem := range logSystems {
-				if logSystem.GetLogLevel() >= msg.LogLevel {
-					msg.send(logSystem)
-				}
-			}
-		case <-quit:
-			break out
+			dispatch(msg)
+		default:
+			drained <- true // this blocks until a message is sent to the queue
 		}
 	}
 }
 
-// waits until log messages are drained (dispatched to log writers)
-func Flush() {
-	quit <- true
+func send(msg *logMessage) {
+	logMessages <- msg
+	select {
+	case <-drained:
+	default:
+	}
+}
 
-done:
-	for {
+func Reset() {
+	mutex.Lock()
+	defer mutex.Unlock()
+	if logSystems != nil {
+		status := make(chan error)
+		quit <- status
 		select {
-		case <-logMessages:
+		case <-drained:
 		default:
-			break done
 		}
+		<-status
+	}
+}
+
+// waits until log messages are drained (dispatched to log writers)
+func Flush() {
+	if logSystems != nil {
+		<-drained
 	}
 }
 
@@ -97,7 +120,8 @@ func AddLogSystem(logSystem LogSystem) {
 	defer mutex.Unlock()
 	if logSystems == nil {
 		logMessages = make(chan *logMessage, 10)
-		quit = make(chan bool, 1)
+		quit = make(chan chan error, 1)
+		drained = make(chan bool, 1)
 		go start()
 	}
 	logSystems = append(logSystems, logSystem)
@@ -106,14 +130,14 @@ func AddLogSystem(logSystem LogSystem) {
 func (logger *Logger) sendln(level LogLevel, v ...interface{}) {
 	if logMessages != nil {
 		msg := newPrintlnLogMessage(level, logger.tag, v...)
-		logMessages <- msg
+		send(msg)
 	}
 }
 
 func (logger *Logger) sendf(level LogLevel, format string, v ...interface{}) {
 	if logMessages != nil {
 		msg := newPrintfLogMessage(level, logger.tag, format, v...)
-		logMessages <- msg
+		send(msg)
 	}
 }
 

ethlog/loggers_test.go

@@ -28,8 +28,19 @@ func (t *TestLogSystem) GetLogLevel() LogLevel {
 	return t.level
 }
 
-func quote(s string) string {
-	return fmt.Sprintf("'%s'", s)
+func TestLoggerFlush(t *testing.T) {
+	logger := NewLogger("TEST")
+	testLogSystem := &TestLogSystem{level: WarnLevel}
+	AddLogSystem(testLogSystem)
+	for i := 0; i < 5; i++ {
+		logger.Errorf(".")
+	}
+	Flush()
+	Reset()
+	output := testLogSystem.Output
+	if output != "[TEST] .[TEST] .[TEST] .[TEST] .[TEST] ." {
+		t.Error("Expected complete logger output '[TEST] .[TEST] .[TEST] .[TEST] .[TEST] .', got ", output)
+	}
 }
 
 func TestLoggerPrintln(t *testing.T) {
@@ -41,10 +52,11 @@ func TestLoggerPrintln(t *testing.T) {
 	logger.Infoln("info")
 	logger.Debugln("debug")
 	Flush()
+	Reset()
 	output := testLogSystem.Output
 	fmt.Println(quote(output))
 	if output != "[TEST] error\n[TEST] warn\n" {
-		t.Error("Expected logger output '[TEST] error\\n[TEST] warn\\n', got ", quote(testLogSystem.Output))
+		t.Error("Expected logger output '[TEST] error\\n[TEST] warn\\n', got ", output)
 	}
 }
 
@@ -57,10 +69,10 @@ func TestLoggerPrintf(t *testing.T) {
 	logger.Infof("info")
 	logger.Debugf("debug")
 	Flush()
+	Reset()
 	output := testLogSystem.Output
-	fmt.Println(quote(output))
 	if output != "[TEST] error to { 2}\n[TEST] warn" {
-		t.Error("Expected logger output '[TEST] error to { 2}\\n[TEST] warn', got ", quote(testLogSystem.Output))
+		t.Error("Expected logger output '[TEST] error to { 2}\\n[TEST] warn', got ", output)
 	}
 }
 
@@ -73,13 +85,14 @@ func TestMultipleLogSystems(t *testing.T) {
 	logger.Errorln("error")
 	logger.Warnln("warn")
 	Flush()
+	Reset()
 	output0 := testLogSystem0.Output
 	output1 := testLogSystem1.Output
 	if output0 != "[TEST] error\n" {
-		t.Error("Expected logger 0 output '[TEST] error\\n', got ", quote(testLogSystem0.Output))
+		t.Error("Expected logger 0 output '[TEST] error\\n', got ", output0)
 	}
 	if output1 != "[TEST] error\n[TEST] warn\n" {
-		t.Error("Expected logger 1 output '[TEST] error\\n[TEST] warn\\n', got ", quote(testLogSystem1.Output))
+		t.Error("Expected logger 1 output '[TEST] error\\n[TEST] warn\\n', got ", output1)
 	}
 }
 
@@ -94,9 +107,8 @@ func TestFileLogSystem(t *testing.T) {
 	Flush()
 	contents, _ := ioutil.ReadFile(filename)
 	output := string(contents)
-	fmt.Println(quote(output))
 	if output != "[TEST] error to test.log\n[TEST] warn\n" {
-		t.Error("Expected contents of file 'test.log': '[TEST] error to test.log\\n[TEST] warn\\n', got ", quote(output))
+		t.Error("Expected contents of file 'test.log': '[TEST] error to test.log\\n[TEST] warn\\n', got ", output)
 	} else {
 		os.Remove(filename)
 	}

ethpipe/config.go

+package ethpipe
+
+import "github.com/ethereum/eth-go/ethutil"
+
+var cnfCtr = ethutil.Hex2Bytes("661005d2720d855f1d9976f88bb10c1a3398c77f")
+
+type Config struct {
+	pipe *Pipe
+}
+
+func (self *Config) Get(name string) *Object {
+	configCtrl := self.pipe.World().safeGet(cnfCtr)
+	var addr []byte
+
+	switch name {
+	case "NameReg":
+		addr = []byte{0}
+	case "DnsReg":
+		objectAddr := configCtrl.GetStorage(ethutil.BigD([]byte{0}))
+		domainAddr := (&Object{self.pipe.World().safeGet(objectAddr.Bytes())}).StorageString("DnsReg").Bytes()
+		return &Object{self.pipe.World().safeGet(domainAddr)}
+	default:
+		addr = ethutil.RightPadBytes([]byte(name), 32)
+	}
+
+	objectAddr := configCtrl.GetStorage(ethutil.BigD(addr))
+
+	return &Object{self.pipe.World().safeGet(objectAddr.Bytes())}
+}
+
+func (self *Config) Exist() bool {
+	return self.pipe.World().Get(cnfCtr) != nil
+}

ethpipe/object.go

+package ethpipe
+
+import (
+	"github.com/ethereum/eth-go/ethstate"
+	"github.com/ethereum/eth-go/ethutil"
+)
+
+type Object struct {
+	*ethstate.StateObject
+}
+
+func (self *Object) StorageString(str string) *ethutil.Value {
+	if ethutil.IsHex(str) {
+		return self.Storage(ethutil.Hex2Bytes(str[2:]))
+	} else {
+		return self.Storage(ethutil.RightPadBytes([]byte(str), 32))
+	}
+}
+
+func (self *Object) StorageValue(addr *ethutil.Value) *ethutil.Value {
+	return self.Storage(addr.Bytes())
+}
+
+func (self *Object) Storage(addr []byte) *ethutil.Value {
+	return self.StateObject.GetStorage(ethutil.BigD(addr))
+}

ethpipe/vm_env.go

+package ethpipe
+
+import (
+	"math/big"
+
+	"github.com/ethereum/eth-go/ethchain"
+	"github.com/ethereum/eth-go/ethstate"
+)
+
+type VMEnv struct {
+	state  *ethstate.State
+	block  *ethchain.Block
+	value  *big.Int
+	sender []byte
+}
+
+func NewEnv(state *ethstate.State, block *ethchain.Block, value *big.Int, sender []byte) *VMEnv {
+	return &VMEnv{
+		state:  state,
+		block:  block,
+		value:  value,
+		sender: sender,
+	}
+}
+
+func (self *VMEnv) Origin() []byte         { return self.sender }
+func (self *VMEnv) BlockNumber() *big.Int  { return self.block.Number }
+func (self *VMEnv) PrevHash() []byte       { return self.block.PrevHash }
+func (self *VMEnv) Coinbase() []byte       { return self.block.Coinbase }
+func (self *VMEnv) Time() int64            { return self.block.Time }
+func (self *VMEnv) Difficulty() *big.Int   { return self.block.Difficulty }
+func (self *VMEnv) BlockHash() []byte      { return self.block.Hash() }
+func (self *VMEnv) Value() *big.Int        { return self.value }
+func (self *VMEnv) State() *ethstate.State { return self.state }