Merge branch 'release/0.9.26'

eth: 100% block propogation

cmd/geth/admin.go

@@ -88,6 +88,7 @@ func (js *jsre) adminBindings() {
 	debug.Set("getBlockRlp", js.getBlockRlp)
 	debug.Set("setHead", js.setHead)
 	debug.Set("processBlock", js.debugBlock)
+	debug.Set("seedhash", js.seedHash)
 	// undocumented temporary
 	debug.Set("waitForBlocks", js.waitForBlocks)
 }
@@ -118,6 +119,27 @@ func (js *jsre) getBlock(call otto.FunctionCall) (*types.Block, error) {
 	return block, nil
 }
 
+func (js *jsre) seedHash(call otto.FunctionCall) otto.Value {
+	if len(call.ArgumentList) > 0 {
+		if call.Argument(0).IsNumber() {
+			num, _ := call.Argument(0).ToInteger()
+			hash, err := ethash.GetSeedHash(uint64(num))
+			if err != nil {
+				fmt.Println(err)
+				return otto.UndefinedValue()
+			}
+			v, _ := call.Otto.ToValue(fmt.Sprintf("0x%x", hash))
+			return v
+		} else {
+			fmt.Println("arg not a number")
+		}
+	} else {
+		fmt.Println("requires number argument")
+	}
+
+	return otto.UndefinedValue()
+}
+
 func (js *jsre) pendingTransactions(call otto.FunctionCall) otto.Value {
 	txs := js.ethereum.TxPool().GetTransactions()
 
@@ -144,7 +166,8 @@ func (js *jsre) pendingTransactions(call otto.FunctionCall) otto.Value {
 		}
 	}
 
-	return js.re.ToVal(ltxs)
+	v, _ := call.Otto.ToValue(ltxs)
+	return v
 }
 
 func (js *jsre) resend(call otto.FunctionCall) otto.Value {
@@ -175,7 +198,8 @@ func (js *jsre) resend(call otto.FunctionCall) otto.Value {
 		}
 		js.ethereum.TxPool().RemoveTransactions(types.Transactions{tx.tx})
 
-		return js.re.ToVal(ret)
+		v, _ := call.Otto.ToValue(ret)
+		return v
 	}
 
 	fmt.Println("first argument must be a transaction")
@@ -198,12 +222,13 @@ func (js *jsre) sign(call otto.FunctionCall) otto.Value {
 		fmt.Println(err)
 		return otto.UndefinedValue()
 	}
-	v, err := js.xeth.Sign(signer, data, false)
+	signed, err := js.xeth.Sign(signer, data, false)
 	if err != nil {
 		fmt.Println(err)
 		return otto.UndefinedValue()
 	}
-	return js.re.ToVal(v)
+	v, _ := call.Otto.ToValue(signed)
+	return v
 }
 
 func (js *jsre) debugBlock(call otto.FunctionCall) otto.Value {
@@ -217,10 +242,11 @@ func (js *jsre) debugBlock(call otto.FunctionCall) otto.Value {
 	vm.Debug = true
 	_, err = js.ethereum.BlockProcessor().RetryProcess(block)
 	if err != nil {
-		glog.Infoln(err)
+		fmt.Println(err)
 	}
 	vm.Debug = old
 
+	fmt.Println("ok")
 	return otto.UndefinedValue()
 }
 
@@ -236,9 +262,9 @@ func (js *jsre) setHead(call otto.FunctionCall) otto.Value {
 }
 
 func (js *jsre) downloadProgress(call otto.FunctionCall) otto.Value {
-	current, max := js.ethereum.Downloader().Stats()
+	pending, cached := js.ethereum.Downloader().Stats()
-
+	v, _ := call.Otto.ToValue(map[string]interface{}{"pending": pending, "cached": cached})
-	return js.re.ToVal(fmt.Sprintf("%d/%d", current, max))
+	return v
 }
 
 func (js *jsre) getBlockRlp(call otto.FunctionCall) otto.Value {
@@ -248,7 +274,8 @@ func (js *jsre) getBlockRlp(call otto.FunctionCall) otto.Value {
 		return otto.UndefinedValue()
 	}
 	encoded, _ := rlp.EncodeToBytes(block)
-	return js.re.ToVal(fmt.Sprintf("%x", encoded))
+	v, _ := call.Otto.ToValue(fmt.Sprintf("%x", encoded))
+	return v
 }
 
 func (js *jsre) setExtra(call otto.FunctionCall) otto.Value {
@@ -278,8 +305,9 @@ func (js *jsre) setGasPrice(call otto.FunctionCall) otto.Value {
 	return otto.UndefinedValue()
 }
 
-func (js *jsre) hashrate(otto.FunctionCall) otto.Value {
+func (js *jsre) hashrate(call otto.FunctionCall) otto.Value {
-	return js.re.ToVal(js.ethereum.Miner().HashRate())
+	v, _ := call.Otto.ToValue(js.ethereum.Miner().HashRate())
+	return v
 }
 
 func (js *jsre) makeDAG(call otto.FunctionCall) otto.Value {
@@ -495,15 +523,18 @@ func (js *jsre) newAccount(call otto.FunctionCall) otto.Value {
 		fmt.Printf("Could not create the account: %v", err)
 		return otto.UndefinedValue()
 	}
-	return js.re.ToVal(acct.Address.Hex())
+	v, _ := call.Otto.ToValue(acct.Address.Hex())
+	return v
 }
 
 func (js *jsre) nodeInfo(call otto.FunctionCall) otto.Value {
-	return js.re.ToVal(js.ethereum.NodeInfo())
+	v, _ := call.Otto.ToValue(js.ethereum.NodeInfo())
+	return v
 }
 
 func (js *jsre) peers(call otto.FunctionCall) otto.Value {
-	return js.re.ToVal(js.ethereum.PeersInfo())
+	v, _ := call.Otto.ToValue(js.ethereum.PeersInfo())
+	return v
 }
 
 func (js *jsre) importChain(call otto.FunctionCall) otto.Value {
@@ -562,7 +593,8 @@ func (js *jsre) dumpBlock(call otto.FunctionCall) otto.Value {
 
 	statedb := state.New(block.Root(), js.ethereum.StateDb())
 	dump := statedb.RawDump()
-	return js.re.ToVal(dump)
+	v, _ := call.Otto.ToValue(dump)
+	return v
 }
 
 func (js *jsre) waitForBlocks(call otto.FunctionCall) otto.Value {
@@ -611,7 +643,8 @@ func (js *jsre) waitForBlocks(call otto.FunctionCall) otto.Value {
 		return otto.UndefinedValue()
 	case height = <-wait:
 	}
-	return js.re.ToVal(height.Uint64())
+	v, _ := call.Otto.ToValue(height.Uint64())
+	return v
 }
 
 func (js *jsre) sleep(call otto.FunctionCall) otto.Value {
@@ -704,8 +737,8 @@ func (js *jsre) register(call otto.FunctionCall) otto.Value {
 		return otto.UndefinedValue()
 	}
 
-	return js.re.ToVal(contenthash.Hex())
+	v, _ := call.Otto.ToValue(contenthash.Hex())
-
+	return v
 }
 
 func (js *jsre) registerUrl(call otto.FunctionCall) otto.Value {
@@ -764,7 +797,8 @@ func (js *jsre) getContractInfo(call otto.FunctionCall) otto.Value {
 		fmt.Println(err)
 		return otto.UndefinedValue()
 	}
-	return js.re.ToVal(info)
+	v, _ := call.Otto.ToValue(info)
+	return v
 }
 
 func (js *jsre) startNatSpec(call otto.FunctionCall) otto.Value {

cmd/geth/blocktestcmd.go

@@ -12,7 +12,7 @@ import (
 	"github.com/ethereum/go-ethereum/tests"
 )
 
-var blocktestCmd = cli.Command{
+var blocktestCommand = cli.Command{
 	Action: runBlockTest,
 	Name:   "blocktest",
 	Usage:  `loads a block test file`,

cmd/geth/chaincmd.go

@@ -0,0 +1,159 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strconv"
+	"time"
+
+	"github.com/codegangsta/cli"
+	"github.com/ethereum/go-ethereum/cmd/utils"
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/logger/glog"
+)
+
+var (
+	importCommand = cli.Command{
+		Action: importChain,
+		Name:   "import",
+		Usage:  `import a blockchain file`,
+	}
+	exportCommand = cli.Command{
+		Action: exportChain,
+		Name:   "export",
+		Usage:  `export blockchain into file`,
+	}
+	upgradedbCommand = cli.Command{
+		Action: upgradeDB,
+		Name:   "upgradedb",
+		Usage:  "upgrade chainblock database",
+	}
+	removedbCommand = cli.Command{
+		Action: removeDB,
+		Name:   "removedb",
+		Usage:  "Remove blockchain and state databases",
+	}
+	dumpCommand = cli.Command{
+		Action: dump,
+		Name:   "dump",
+		Usage:  `dump a specific block from storage`,
+		Description: `
+The arguments are interpreted as block numbers or hashes.
+Use "ethereum dump 0" to dump the genesis block.
+`,
+	}
+)
+
+func importChain(ctx *cli.Context) {
+	if len(ctx.Args()) != 1 {
+		utils.Fatalf("This command requires an argument.")
+	}
+	chain, blockDB, stateDB, extraDB := utils.MakeChain(ctx)
+	start := time.Now()
+	err := utils.ImportChain(chain, ctx.Args().First())
+	closeAll(blockDB, stateDB, extraDB)
+	if err != nil {
+		utils.Fatalf("Import error: %v", err)
+	}
+	fmt.Printf("Import done in %v", time.Since(start))
+}
+
+func exportChain(ctx *cli.Context) {
+	if len(ctx.Args()) != 1 {
+		utils.Fatalf("This command requires an argument.")
+	}
+	chain, _, _, _ := utils.MakeChain(ctx)
+	start := time.Now()
+	if err := utils.ExportChain(chain, ctx.Args().First()); err != nil {
+		utils.Fatalf("Export error: %v\n", err)
+	}
+	fmt.Printf("Export done in %v", time.Since(start))
+}
+
+func removeDB(ctx *cli.Context) {
+	confirm, err := utils.PromptConfirm("Remove local databases?")
+	if err != nil {
+		utils.Fatalf("%v", err)
+	}
+
+	if confirm {
+		fmt.Println("Removing chain and state databases...")
+		start := time.Now()
+
+		os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "blockchain"))
+		os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "state"))
+
+		fmt.Printf("Removed in %v\n", time.Since(start))
+	} else {
+		fmt.Println("Operation aborted")
+	}
+}
+
+func upgradeDB(ctx *cli.Context) {
+	glog.Infoln("Upgrading blockchain database")
+
+	chain, blockDB, stateDB, extraDB := utils.MakeChain(ctx)
+	v, _ := blockDB.Get([]byte("BlockchainVersion"))
+	bcVersion := int(common.NewValue(v).Uint())
+	if bcVersion == 0 {
+		bcVersion = core.BlockChainVersion
+	}
+
+	// Export the current chain.
+	filename := fmt.Sprintf("blockchain_%d_%s.chain", bcVersion, time.Now().Format("20060102_150405"))
+	exportFile := filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), filename)
+	if err := utils.ExportChain(chain, exportFile); err != nil {
+		utils.Fatalf("Unable to export chain for reimport %s", err)
+	}
+	closeAll(blockDB, stateDB, extraDB)
+	os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "blockchain"))
+	os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "state"))
+
+	// Import the chain file.
+	chain, blockDB, stateDB, extraDB = utils.MakeChain(ctx)
+	blockDB.Put([]byte("BlockchainVersion"), common.NewValue(core.BlockChainVersion).Bytes())
+	err := utils.ImportChain(chain, exportFile)
+	closeAll(blockDB, stateDB, extraDB)
+	if err != nil {
+		utils.Fatalf("Import error %v (a backup is made in %s, use the import command to import it)", err, exportFile)
+	} else {
+		os.Remove(exportFile)
+		glog.Infoln("Import finished")
+	}
+}
+
+func dump(ctx *cli.Context) {
+	chain, _, stateDB, _ := utils.MakeChain(ctx)
+	for _, arg := range ctx.Args() {
+		var block *types.Block
+		if hashish(arg) {
+			block = chain.GetBlock(common.HexToHash(arg))
+		} else {
+			num, _ := strconv.Atoi(arg)
+			block = chain.GetBlockByNumber(uint64(num))
+		}
+		if block == nil {
+			fmt.Println("{}")
+			utils.Fatalf("block not found")
+		} else {
+			state := state.New(block.Root(), stateDB)
+			fmt.Printf("%s\n", state.Dump())
+		}
+	}
+}
+
+// hashish returns true for strings that look like hashes.
+func hashish(x string) bool {
+	_, err := strconv.Atoi(x)
+	return err != nil
+}
+
+func closeAll(dbs ...common.Database) {
+	for _, db := range dbs {
+		db.Close()
+	}
+}

cmd/geth/js.go

@@ -22,6 +22,7 @@ import (
 	"fmt"
 	"math/big"
 	"os"
+	"os/signal"
 	"path/filepath"
 	"strings"
 
@@ -47,7 +48,8 @@ type dumbterm struct{ r *bufio.Reader }
 
 func (r dumbterm) Prompt(p string) (string, error) {
 	fmt.Print(p)
-	return r.r.ReadString('\n')
+	line, err := r.r.ReadString('\n')
+	return strings.TrimSuffix(line, "\n"), err
 }
 
 func (r dumbterm) PasswordPrompt(p string) (string, error) {
@@ -104,7 +106,7 @@ func newJSRE(ethereum *eth.Ethereum, libPath, corsDomain string, interactive boo
 func (js *jsre) apiBindings(f xeth.Frontend) {
 	xe := xeth.New(js.ethereum, f)
 	ethApi := rpc.NewEthereumApi(xe)
-	jeth := rpc.NewJeth(ethApi, js.re.ToVal, js.re)
+	jeth := rpc.NewJeth(ethApi, js.re)
 
 	js.re.Set("jeth", struct{}{})
 	t, _ := js.re.Get("jeth")
@@ -182,10 +184,38 @@ func (self *jsre) exec(filename string) error {
 }
 
 func (self *jsre) interactive() {
+	// Read input lines.
+	prompt := make(chan string)
+	inputln := make(chan string)
+	go func() {
+		defer close(inputln)
 		for {
-		input, err := self.Prompt(self.ps1)
+			line, err := self.Prompt(<-prompt)
 			if err != nil {
-			break
+				return
+			}
+			inputln <- line
+		}
+	}()
+	// Wait for Ctrl-C, too.
+	sig := make(chan os.Signal, 1)
+	signal.Notify(sig, os.Interrupt)
+
+	defer func() {
+		if self.atexit != nil {
+			self.atexit()
+		}
+		self.re.Stop(false)
+	}()
+	for {
+		prompt <- self.ps1
+		select {
+		case <-sig:
+			fmt.Println("caught interrupt, exiting")
+			return
+		case input, ok := <-inputln:
+			if !ok || indentCount <= 0 && input == "exit" {
+				return
 			}
 			if input == "" {
 				continue
@@ -193,19 +223,13 @@ func (self *jsre) interactive() {
 			str += input + "\n"
 			self.setIndent()
 			if indentCount <= 0 {
-			if input == "exit" {
-				break
-			}
 				hist := str[:len(str)-1]
 				self.AppendHistory(hist)
 				self.parseInput(str)
 				str = ""
 			}
 		}
-	if self.atexit != nil {
-		self.atexit()
 	}
-	self.re.Stop(false)
 }
 
 func (self *jsre) withHistory(op func(*os.File)) {

cmd/geth/js_test.go

@@ -35,6 +35,7 @@ const (
 
 var (
 	versionRE   = regexp.MustCompile(strconv.Quote(`"compilerVersion":"` + solcVersion + `"`))
+	testNodeKey = crypto.ToECDSA(common.Hex2Bytes("4b50fa71f5c3eeb8fdc452224b2395af2fcc3d125e06c32c82e048c0559db03f"))
 	testGenesis = `{"` + testAddress[2:] + `": {"balance": "` + testBalance + `"}}`
 )
 
@@ -72,6 +73,7 @@ func testJEthRE(t *testing.T) (string, *testjethre, *eth.Ethereum) {
 	ks := crypto.NewKeyStorePlain(filepath.Join(tmp, "keystore"))
 	am := accounts.NewManager(ks)
 	ethereum, err := eth.New(&eth.Config{
+		NodeKey:        testNodeKey,
 		DataDir:        tmp,
 		AccountManager: am,
 		MaxPeers:       0,
@@ -122,7 +124,7 @@ func TestNodeInfo(t *testing.T) {
 	}
 	defer ethereum.Stop()
 	defer os.RemoveAll(tmp)
-	want := `{"DiscPort":0,"IP":"0.0.0.0","ListenAddr":"","Name":"test","NodeID":"00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000","NodeUrl":"enode://00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000@0.0.0.0:0","TCPPort":0,"Td":"0"}`
+	want := `{"DiscPort":0,"IP":"0.0.0.0","ListenAddr":"","Name":"test","NodeID":"4cb2fc32924e94277bf94b5e4c983beedb2eabd5a0bc941db32202735c6625d020ca14a5963d1738af43b6ac0a711d61b1a06de931a499fe2aa0b1a132a902b5","NodeUrl":"enode://4cb2fc32924e94277bf94b5e4c983beedb2eabd5a0bc941db32202735c6625d020ca14a5963d1738af43b6ac0a711d61b1a06de931a499fe2aa0b1a132a902b5@0.0.0.0:0","TCPPort":0,"Td":"131072"}`
 	checkEvalJSON(t, repl, `admin.nodeInfo()`, want)
 }
 

cmd/geth/main.go

@@ -24,31 +24,27 @@ import (
 	"fmt"
 	"io"
 	"io/ioutil"
+	_ "net/http/pprof"
 	"os"
 	"path/filepath"
 	"runtime"
 	"strconv"
 	"strings"
-	"time"
 
 	"github.com/codegangsta/cli"
 	"github.com/ethereum/ethash"
 	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/cmd/utils"
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core"
-	"github.com/ethereum/go-ethereum/core/state"
-	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/eth"
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/mattn/go-colorable"
 	"github.com/mattn/go-isatty"
 )
-import _ "net/http/pprof"
 
 const (
 	ClientIdentifier = "Geth"
-	Version          = "0.9.24"
+	Version          = "0.9.26"
 )
 
 var (
@@ -68,7 +64,12 @@ func init() {
 	app.Action = run
 	app.HideVersion = true // we have a command to print the version
 	app.Commands = []cli.Command{
-		blocktestCmd,
+		blocktestCommand,
+		importCommand,
+		exportCommand,
+		upgradedbCommand,
+		removedbCommand,
+		dumpCommand,
 		{
 			Action: makedag,
 			Name:   "makedag",
@@ -193,15 +194,6 @@ nodes.
 				},
 			},
 		},
-		{
-			Action: dump,
-			Name:   "dump",
-			Usage:  `dump a specific block from storage`,
-			Description: `
-The arguments are interpreted as block numbers or hashes.
-Use "ethereum dump 0" to dump the genesis block.
-`,
-		},
 		{
 			Action: console,
 			Name:   "console",
@@ -221,26 +213,6 @@ The JavaScript VM exposes a node admin interface as well as the Ðapp
 JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Console
 `,
 		},
-		{
-			Action: importchain,
-			Name:   "import",
-			Usage:  `import a blockchain file`,
-		},
-		{
-			Action: exportchain,
-			Name:   "export",
-			Usage:  `export blockchain into file`,
-		},
-		{
-			Action: upgradeDb,
-			Name:   "upgradedb",
-			Usage:  "upgrade chainblock database",
-		},
-		{
-			Action: removeDb,
-			Name:   "removedb",
-			Usage:  "Remove blockchain and state databases",
-		},
 	}
 	app.Flags = []cli.Flag{
 		utils.IdentityFlag,
@@ -260,6 +232,7 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso
 		utils.AutoDAGFlag,
 		utils.NATFlag,
 		utils.NatspecEnabledFlag,
+		utils.NoDiscoverFlag,
 		utils.NodeKeyFileFlag,
 		utils.NodeKeyHexFlag,
 		utils.RPCEnabledFlag,
@@ -281,17 +254,12 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso
 		utils.SolcPathFlag,
 	}
 	app.Before = func(ctx *cli.Context) error {
+		utils.SetupLogger(ctx)
 		if ctx.GlobalBool(utils.PProfEanbledFlag.Name) {
 			utils.StartPProf(ctx)
 		}
 		return nil
 	}
-
-	// missing:
-	// flag.StringVar(&ConfigFile, "conf", defaultConfigFile, "config file")
-	// flag.BoolVar(&DiffTool, "difftool", false, "creates output for diff'ing. Sets LogLevel=0")
-	// flag.StringVar(&DiffType, "diff", "all", "sets the level of diff output [vm, all]. Has no effect if difftool=false")
-
 }
 
 func main() {
@@ -372,13 +340,13 @@ func unlockAccount(ctx *cli.Context, am *accounts.Manager, account string) (pass
 	var err error
 	// Load startup keys. XXX we are going to need a different format
 
-	if len(account) == 0 {
+	if !((len(account) == 40) || (len(account) == 42)) { // with or without 0x
 		utils.Fatalf("Invalid account address '%s'", account)
 	}
 	// Attempt to unlock the account 3 times
 	attempts := 3
 	for tries := 0; tries < attempts; tries++ {
-		msg := fmt.Sprintf("Unlocking account %s...%s | Attempt %d/%d", account[:8], account[len(account)-6:], tries+1, attempts)
+		msg := fmt.Sprintf("Unlocking account %s | Attempt %d/%d", account, tries+1, attempts)
 		passphrase = getPassPhrase(ctx, msg, false)
 		err = am.Unlock(common.HexToAddress(account), passphrase)
 		if err == nil {
@@ -426,7 +394,7 @@ func startEth(ctx *cli.Context, eth *eth.Ethereum) {
 }
 
 func accountList(ctx *cli.Context) {
-	am := utils.GetAccountManager(ctx)
+	am := utils.MakeAccountManager(ctx)
 	accts, err := am.Accounts()
 	if err != nil {
 		utils.Fatalf("Could not list accounts: %v", err)
@@ -468,7 +436,7 @@ func getPassPhrase(ctx *cli.Context, desc string, confirmation bool) (passphrase
 }
 
 func accountCreate(ctx *cli.Context) {
-	am := utils.GetAccountManager(ctx)
+	am := utils.MakeAccountManager(ctx)
 	passphrase := getPassPhrase(ctx, "Your new account is locked with a password. Please give a password. Do not forget this password.", true)
 	acct, err := am.NewAccount(passphrase)
 	if err != nil {
@@ -487,7 +455,7 @@ func importWallet(ctx *cli.Context) {
 		utils.Fatalf("Could not read wallet file: %v", err)
 	}
 
-	am := utils.GetAccountManager(ctx)
+	am := utils.MakeAccountManager(ctx)
 	passphrase := getPassPhrase(ctx, "", false)
 
 	acct, err := am.ImportPreSaleKey(keyJson, passphrase)
@@ -502,7 +470,7 @@ func accountImport(ctx *cli.Context) {
 	if len(keyfile) == 0 {
 		utils.Fatalf("keyfile must be given as argument")
 	}
-	am := utils.GetAccountManager(ctx)
+	am := utils.MakeAccountManager(ctx)
 	passphrase := getPassPhrase(ctx, "Your new account is locked with a password. Please give a password. Do not forget this password.", true)
 	acct, err := am.Import(keyfile, passphrase)
 	if err != nil {
@@ -511,153 +479,6 @@ func accountImport(ctx *cli.Context) {
 	fmt.Printf("Address: %x\n", acct)
 }
 
-func importchain(ctx *cli.Context) {
-	if len(ctx.Args()) != 1 {
-		utils.Fatalf("This command requires an argument.")
-	}
-
-	cfg := utils.MakeEthConfig(ClientIdentifier, Version, ctx)
-	cfg.SkipBcVersionCheck = true
-
-	ethereum, err := eth.New(cfg)
-	if err != nil {
-		utils.Fatalf("%v\n", err)
-	}
-
-	chainmgr := ethereum.ChainManager()
-	start := time.Now()
-	err = utils.ImportChain(chainmgr, ctx.Args().First())
-	if err != nil {
-		utils.Fatalf("Import error: %v\n", err)
-	}
-
-	// force database flush
-	ethereum.BlockDb().Close()
-	ethereum.StateDb().Close()
-	ethereum.ExtraDb().Close()
-
-	fmt.Printf("Import done in %v", time.Since(start))
-
-	return
-}
-
-func exportchain(ctx *cli.Context) {
-	if len(ctx.Args()) != 1 {
-		utils.Fatalf("This command requires an argument.")
-	}
-
-	cfg := utils.MakeEthConfig(ClientIdentifier, nodeNameVersion, ctx)
-	cfg.SkipBcVersionCheck = true
-
-	ethereum, err := eth.New(cfg)
-	if err != nil {
-		utils.Fatalf("%v\n", err)
-	}
-
-	chainmgr := ethereum.ChainManager()
-	start := time.Now()
-	err = utils.ExportChain(chainmgr, ctx.Args().First())
-	if err != nil {
-		utils.Fatalf("Export error: %v\n", err)
-	}
-	fmt.Printf("Export done in %v", time.Since(start))
-	return
-}
-
-func removeDb(ctx *cli.Context) {
-	confirm, err := utils.PromptConfirm("Remove local databases?")
-	if err != nil {
-		utils.Fatalf("%v", err)
-	}
-
-	if confirm {
-		fmt.Println("Removing chain and state databases...")
-		start := time.Now()
-
-		os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "blockchain"))
-		os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "state"))
-
-		fmt.Printf("Removed in %v\n", time.Since(start))
-	} else {
-		fmt.Println("Operation aborted")
-	}
-}
-
-func upgradeDb(ctx *cli.Context) {
-	fmt.Println("Upgrade blockchain DB")
-
-	cfg := utils.MakeEthConfig(ClientIdentifier, Version, ctx)
-	cfg.SkipBcVersionCheck = true
-
-	ethereum, err := eth.New(cfg)
-	if err != nil {
-		utils.Fatalf("%v\n", err)
-	}
-
-	v, _ := ethereum.BlockDb().Get([]byte("BlockchainVersion"))
-	bcVersion := int(common.NewValue(v).Uint())
-
-	if bcVersion == 0 {
-		bcVersion = core.BlockChainVersion
-	}
-
-	filename := fmt.Sprintf("blockchain_%d_%s.chain", bcVersion, time.Now().Format("20060102_150405"))
-	exportFile := filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), filename)
-
-	err = utils.ExportChain(ethereum.ChainManager(), exportFile)
-	if err != nil {
-		utils.Fatalf("Unable to export chain for reimport %s\n", err)
-	}
-
-	ethereum.BlockDb().Close()
-	ethereum.StateDb().Close()
-	ethereum.ExtraDb().Close()
-
-	os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "blockchain"))
-	os.RemoveAll(filepath.Join(ctx.GlobalString(utils.DataDirFlag.Name), "state"))
-
-	ethereum, err = eth.New(cfg)
-	if err != nil {
-		utils.Fatalf("%v\n", err)
-	}
-
-	ethereum.BlockDb().Put([]byte("BlockchainVersion"), common.NewValue(core.BlockChainVersion).Bytes())
-
-	err = utils.ImportChain(ethereum.ChainManager(), exportFile)
-	if err != nil {
-		utils.Fatalf("Import error %v (a backup is made in %s, use the import command to import it)\n", err, exportFile)
-	}
-
-	// force database flush
-	ethereum.BlockDb().Close()
-	ethereum.StateDb().Close()
-	ethereum.ExtraDb().Close()
-
-	os.Remove(exportFile)
-
-	fmt.Println("Import finished")
-}
-
-func dump(ctx *cli.Context) {
-	chainmgr, _, stateDb := utils.GetChain(ctx)
-	for _, arg := range ctx.Args() {
-		var block *types.Block
-		if hashish(arg) {
-			block = chainmgr.GetBlock(common.HexToHash(arg))
-		} else {
-			num, _ := strconv.Atoi(arg)
-			block = chainmgr.GetBlockByNumber(uint64(num))
-		}
-		if block == nil {
-			fmt.Println("{}")
-			utils.Fatalf("block not found")
-		} else {
-			statedb := state.New(block.Root(), stateDb)
-			fmt.Printf("%s\n", statedb.Dump())
-		}
-	}
-}
-
 func makedag(ctx *cli.Context) {
 	args := ctx.Args()
 	wrongArgs := func() {
@@ -700,9 +521,3 @@ func version(c *cli.Context) {
 	fmt.Printf("GOPATH=%s\n", os.Getenv("GOPATH"))
 	fmt.Printf("GOROOT=%s\n", runtime.GOROOT())
 }
-
-// hashish returns true for strings that look like hashes.
-func hashish(x string) bool {
-	_, err := strconv.Atoi(x)
-	return err != nil
-}

cmd/mist/assets/examples/coin.html

@@ -102,7 +102,7 @@ window.filter = filter;
 		var amount = parseInt( value.value );
 		console.log("transact: ", to.value, " => ", amount)
 
-		contract.sendTransaction({from: eth.accounts[0]}).send( to.value, amount );
+		contract.send.sendTransaction(to.value, amount ,{from: eth.accounts[0]});
 
 		to.value = "";
 		value.value = "";

cmd/mist/main.go

@@ -86,6 +86,10 @@ func init() {
 		utils.BlockchainVersionFlag,
 		utils.NetworkIdFlag,
 	}
+	app.Before = func(ctx *cli.Context) error {
+		utils.SetupLogger(ctx)
+		return nil
+	}
 }
 
 func main() {

cmd/utils/cmd.go

@@ -40,6 +40,10 @@ import (
 	"github.com/peterh/liner"
 )
 
+const (
+	importBatchSize = 2500
+)
+
 var interruptCallbacks = []func(os.Signal){}
 
 // Register interrupt handlers callbacks
@@ -125,10 +129,17 @@ func initDataDir(Datadir string) {
 	}
 }
 
-// Fatalf formats a message to standard output and exits the program.
+// Fatalf formats a message to standard error and exits the program.
+// The message is also printed to standard output if standard error
+// is redirected to a different file.
 func Fatalf(format string, args ...interface{}) {
-	fmt.Fprintf(os.Stderr, "Fatal: "+format+"\n", args...)
+	w := io.MultiWriter(os.Stdout, os.Stderr)
-	fmt.Fprintf(os.Stdout, "Fatal: "+format+"\n", args...)
+	outf, _ := os.Stdout.Stat()
+	errf, _ := os.Stderr.Stat()
+	if outf != nil && errf != nil && os.SameFile(outf, errf) {
+		w = os.Stderr
+	}
+	fmt.Fprintf(w, "Fatal: "+format+"\n", args...)
 	logger.Flush()
 	os.Exit(1)
 }
@@ -166,53 +177,86 @@ func FormatTransactionData(data string) []byte {
 	return d
 }
 
-func ImportChain(chainmgr *core.ChainManager, fn string) error {
+func ImportChain(chain *core.ChainManager, fn string) error {
-	fmt.Printf("importing blockchain '%s'\n", fn)
+	// Watch for Ctrl-C while the import is running.
-	fh, err := os.OpenFile(fn, os.O_RDONLY, os.ModePerm)
+	// If a signal is received, the import will stop at the next batch.
+	interrupt := make(chan os.Signal, 1)
+	stop := make(chan struct{})
+	signal.Notify(interrupt, os.Interrupt)
+	defer signal.Stop(interrupt)
+	defer close(interrupt)
+	go func() {
+		if _, ok := <-interrupt; ok {
+			glog.Info("caught interrupt during import, will stop at next batch")
+		}
+		close(stop)
+	}()
+	checkInterrupt := func() bool {
+		select {
+		case <-stop:
+			return true
+		default:
+			return false
+		}
+	}
+
+	glog.Infoln("Importing blockchain", fn)
+	fh, err := os.Open(fn)
 	if err != nil {
 		return err
 	}
 	defer fh.Close()
-
-	chainmgr.Reset()
 	stream := rlp.NewStream(fh, 0)
-	var i, n int
 
-	batchSize := 2500
+	// Run actual the import.
-	blocks := make(types.Blocks, batchSize)
+	blocks := make(types.Blocks, importBatchSize)
-
+	n := 0
-	for ; ; i++ {
+	for batch := 0; ; batch++ {
+		// Load a batch of RLP blocks.
+		if checkInterrupt() {
+			return fmt.Errorf("interrupted")
+		}
+		i := 0
+		for ; i < importBatchSize; i++ {
 			var b types.Block
 			if err := stream.Decode(&b); err == io.EOF {
 				break
 			} else if err != nil {
-			return fmt.Errorf("at block %d: %v", i, err)
+				return fmt.Errorf("at block %d: %v", n, err)
 			}
-
+			blocks[i] = &b
-		blocks[n] = &b
 			n++
-
-		if n == batchSize {
-			if _, err := chainmgr.InsertChain(blocks); err != nil {
-				return fmt.Errorf("invalid block %v", err)
 		}
-			n = 0
+		if i == 0 {
-			blocks = make(types.Blocks, batchSize)
+			break
+		}
+		// Import the batch.
+		if checkInterrupt() {
+			return fmt.Errorf("interrupted")
+		}
+		if hasAllBlocks(chain, blocks[:i]) {
+			glog.Infof("skipping batch %d, all blocks present [%x / %x]",
+				batch, blocks[0].Hash().Bytes()[:4], blocks[i-1].Hash().Bytes()[:4])
+			continue
+		}
+		if _, err := chain.InsertChain(blocks[:i]); err != nil {
+			return fmt.Errorf("invalid block %d: %v", n, err)
 		}
 	}
-
-	if n > 0 {
-		if _, err := chainmgr.InsertChain(blocks[:n]); err != nil {
-			return fmt.Errorf("invalid block %v", err)
-		}
-	}
-
-	fmt.Printf("imported %d blocks\n", i)
 	return nil
 }
 
+func hasAllBlocks(chain *core.ChainManager, bs []*types.Block) bool {
+	for _, b := range bs {
+		if !chain.HasBlock(b.Hash()) {
+			return false
+		}
+	}
+	return true
+}
+
 func ExportChain(chainmgr *core.ChainManager, fn string) error {
-	fmt.Printf("exporting blockchain '%s'\n", fn)
+	glog.Infoln("Exporting blockchain to", fn)
 	fh, err := os.OpenFile(fn, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, os.ModePerm)
 	if err != nil {
 		return err
@@ -221,6 +265,6 @@ func ExportChain(chainmgr *core.ChainManager, fn string) error {
 	if err := chainmgr.Export(fh); err != nil {
 		return err
 	}
-	fmt.Printf("exported blockchain\n")
+	glog.Infoln("Exported blockchain to", fn)
 	return nil
 }

cmd/utils/flags.go

@@ -235,6 +235,10 @@ var (
 		Usage: "NAT port mapping mechanism (any|none|upnp|pmp|extip:<IP>)",
 		Value: "any",
 	}
+	NoDiscoverFlag = cli.BoolFlag{
+		Name:  "nodiscover",
+		Usage: "Disables the peer discovery mechanism (manual peer addition)",
+	}
 	WhisperEnabledFlag = cli.BoolFlag{
 		Name:  "shh",
 		Usage: "Enable whisper",
@@ -252,7 +256,8 @@ var (
 	}
 )
 
-func GetNAT(ctx *cli.Context) nat.Interface {
+// MakeNAT creates a port mapper from set command line flags.
+func MakeNAT(ctx *cli.Context) nat.Interface {
 	natif, err := nat.Parse(ctx.GlobalString(NATFlag.Name))
 	if err != nil {
 		Fatalf("Option %s: %v", NATFlag.Name, err)
@@ -260,7 +265,8 @@ func GetNAT(ctx *cli.Context) nat.Interface {
 	return natif
 }
 
-func GetNodeKey(ctx *cli.Context) (key *ecdsa.PrivateKey) {
+// MakeNodeKey creates a node key from set command line flags.
+func MakeNodeKey(ctx *cli.Context) (key *ecdsa.PrivateKey) {
 	hex, file := ctx.GlobalString(NodeKeyHexFlag.Name), ctx.GlobalString(NodeKeyFileFlag.Name)
 	var err error
 	switch {
@@ -278,21 +284,12 @@ func GetNodeKey(ctx *cli.Context) (key *ecdsa.PrivateKey) {
 	return key
 }
 
+// MakeEthConfig creates ethereum options from set command line flags.
 func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
-	// Set verbosity on glog
-	glog.SetV(ctx.GlobalInt(VerbosityFlag.Name))
-	glog.CopyStandardLogTo("INFO")
-	// Set the log type
-	//glog.SetToStderr(ctx.GlobalBool(LogToStdErrFlag.Name))
-	glog.SetToStderr(true)
-	// Set the log dir
-	glog.SetLogDir(ctx.GlobalString(LogFileFlag.Name))
-
 	customName := ctx.GlobalString(IdentityFlag.Name)
 	if len(customName) > 0 {
 		clientID += "/" + customName
 	}
-
 	return &eth.Config{
 		Name:               common.MakeName(clientID, version),
 		DataDir:            ctx.GlobalString(DataDirFlag.Name),
@@ -305,14 +302,15 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
 		LogJSON:            ctx.GlobalString(LogJSONFlag.Name),
 		Etherbase:          ctx.GlobalString(EtherbaseFlag.Name),
 		MinerThreads:       ctx.GlobalInt(MinerThreadsFlag.Name),
-		AccountManager:     GetAccountManager(ctx),
+		AccountManager:     MakeAccountManager(ctx),
 		VmDebug:            ctx.GlobalBool(VMDebugFlag.Name),
 		MaxPeers:           ctx.GlobalInt(MaxPeersFlag.Name),
 		MaxPendingPeers:    ctx.GlobalInt(MaxPendingPeersFlag.Name),
 		Port:               ctx.GlobalString(ListenPortFlag.Name),
-		NAT:                GetNAT(ctx),
+		NAT:                MakeNAT(ctx),
 		NatSpec:            ctx.GlobalBool(NatspecEnabledFlag.Name),
-		NodeKey:            GetNodeKey(ctx),
+		Discovery:          !ctx.GlobalBool(NoDiscoverFlag.Name),
+		NodeKey:            MakeNodeKey(ctx),
 		Shh:                ctx.GlobalBool(WhisperEnabledFlag.Name),
 		Dial:               true,
 		BootNodes:          ctx.GlobalString(BootnodesFlag.Name),
@@ -320,38 +318,41 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
 		SolcPath:           ctx.GlobalString(SolcPathFlag.Name),
 		AutoDAG:            ctx.GlobalBool(AutoDAGFlag.Name) || ctx.GlobalBool(MiningEnabledFlag.Name),
 	}
-
 }
 
-func GetChain(ctx *cli.Context) (*core.ChainManager, common.Database, common.Database) {
+// SetupLogger configures glog from the logging-related command line flags.
-	dataDir := ctx.GlobalString(DataDirFlag.Name)
+func SetupLogger(ctx *cli.Context) {
+	glog.SetV(ctx.GlobalInt(VerbosityFlag.Name))
+	glog.CopyStandardLogTo("INFO")
+	glog.SetToStderr(true)
+	glog.SetLogDir(ctx.GlobalString(LogFileFlag.Name))
+}
 
-	blockDb, err := ethdb.NewLDBDatabase(filepath.Join(dataDir, "blockchain"))
+// MakeChain creates a chain manager from set command line flags.
-	if err != nil {
+func MakeChain(ctx *cli.Context) (chain *core.ChainManager, blockDB, stateDB, extraDB common.Database) {
+	dd := ctx.GlobalString(DataDirFlag.Name)
+	var err error
+	if blockDB, err = ethdb.NewLDBDatabase(filepath.Join(dd, "blockchain")); err != nil {
 		Fatalf("Could not open database: %v", err)
 	}
-
+	if stateDB, err = ethdb.NewLDBDatabase(filepath.Join(dd, "state")); err != nil {
-	stateDb, err := ethdb.NewLDBDatabase(filepath.Join(dataDir, "state"))
-	if err != nil {
 		Fatalf("Could not open database: %v", err)
 	}
-
+	if extraDB, err = ethdb.NewLDBDatabase(filepath.Join(dd, "extra")); err != nil {
-	extraDb, err := ethdb.NewLDBDatabase(filepath.Join(dataDir, "extra"))
-	if err != nil {
 		Fatalf("Could not open database: %v", err)
 	}
 
 	eventMux := new(event.TypeMux)
 	pow := ethash.New()
-	chainManager := core.NewChainManager(blockDb, stateDb, pow, eventMux)
+	chain = core.NewChainManager(blockDB, stateDB, pow, eventMux)
-	txPool := core.NewTxPool(eventMux, chainManager.State, chainManager.GasLimit)
+	txpool := core.NewTxPool(eventMux, chain.State, chain.GasLimit)
-	blockProcessor := core.NewBlockProcessor(stateDb, extraDb, pow, txPool, chainManager, eventMux)
+	proc := core.NewBlockProcessor(stateDB, extraDB, pow, txpool, chain, eventMux)
-	chainManager.SetProcessor(blockProcessor)
+	chain.SetProcessor(proc)
-
+	return chain, blockDB, stateDB, extraDB
-	return chainManager, blockDb, stateDb
 }
 
-func GetAccountManager(ctx *cli.Context) *accounts.Manager {
+// MakeChain creates an account manager from set command line flags.
+func MakeAccountManager(ctx *cli.Context) *accounts.Manager {
 	dataDir := ctx.GlobalString(DataDirFlag.Name)
 	ks := crypto.NewKeyStorePassphrase(filepath.Join(dataDir, "keystore"))
 	return accounts.NewManager(ks)

common/compiler/solidity.go

@@ -34,6 +34,8 @@ var (
 		"file",           //
 		"--natspec-dev",  // Request to output the contract's Natspec developer documentation.
 		"file",
+		"--add-std",
+		"1",
 	}
 )
 

common/db.go

@@ -5,7 +5,6 @@ type Database interface {
 	Put(key []byte, value []byte)
 	Get(key []byte) ([]byte, error)
 	Delete(key []byte) error
-	LastKnownTD() []byte
 	Close()
 	Flush() error
 }

core/block_processor.go

@@ -21,7 +21,7 @@ import (
 const (
 	// must be bumped when consensus algorithm is changed, this forces the upgradedb
 	// command to be run (forces the blocks to be imported again using the new algorithm)
-	BlockChainVersion = 2
+	BlockChainVersion = 3
 )
 
 var receiptsPre = []byte("receipts-")
@@ -40,11 +40,6 @@ type BlockProcessor struct {
 
 	txpool *TxPool
 
-	// The last attempted block is mainly used for debugging purposes
-	// This does not have to be a valid block and will be set during
-	// 'Process' & canonical validation.
-	lastAttemptedBlock *types.Block
-
 	events event.Subscription
 
 	eventMux *event.TypeMux
@@ -159,6 +154,9 @@ func (sm *BlockProcessor) RetryProcess(block *types.Block) (logs state.Logs, err
 		return nil, ParentError(header.ParentHash)
 	}
 	parent := sm.bc.GetBlock(header.ParentHash)
+	if !sm.Pow.Verify(block) {
+		return nil, ValidationError("Block's nonce is invalid (= %x)", block.Nonce)
+	}
 
 	return sm.processWithParent(block, parent)
 }
@@ -185,8 +183,6 @@ func (sm *BlockProcessor) Process(block *types.Block) (logs state.Logs, err erro
 }
 
 func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (logs state.Logs, err error) {
-	sm.lastAttemptedBlock = block
-
 	// Create a new state based on the parent's root (e.g., create copy)
 	state := state.New(parent.Root(), sm.db)
 
@@ -252,6 +248,12 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (logs st
 		return
 	}
 
+	// store the receipts
+	err = putReceipts(sm.extraDb, block.Hash(), receipts)
+	if err != nil {
+		return nil, err
+	}
+
 	// Calculate the td for this block
 	//td = CalculateTD(block, parent)
 	// Sync the current block's state to the database
@@ -265,26 +267,11 @@ func (sm *BlockProcessor) processWithParent(block, parent *types.Block) (logs st
 		putTx(sm.extraDb, tx, block, uint64(i))
 	}
 
-	receiptsRlp := block.Receipts().RlpEncode()
-	sm.extraDb.Put(append(receiptsPre, block.Hash().Bytes()...), receiptsRlp)
-
 	return state.Logs(), nil
 }
 
-func (self *BlockProcessor) GetBlockReceipts(bhash common.Hash) (receipts types.Receipts, err error) {
+// See YP section 4.3.4. "Block Header Validity"
-	var rdata []byte
+// Validates a block. Returns an error if the block is invalid.
-	rdata, err = self.extraDb.Get(append(receiptsPre, bhash[:]...))
-
-	if err == nil {
-		err = rlp.DecodeBytes(rdata, &receipts)
-	}
-	return
-
-}
-
-// Validates the current block. Returns an error if the block was invalid,
-// an uncle or anything that isn't on the current block chain.
-// Validation validates easy over difficult (dagger takes longer time = difficult)
 func (sm *BlockProcessor) ValidateHeader(block, parent *types.Header, checkPow bool) error {
 	if big.NewInt(int64(len(block.Extra))).Cmp(params.MaximumExtraDataSize) == 1 {
 		return fmt.Errorf("Block extra data too long (%d)", len(block.Extra))
@@ -295,7 +282,6 @@ func (sm *BlockProcessor) ValidateHeader(block, parent *types.Header, checkPow b
 		return fmt.Errorf("Difficulty check failed for block %v, %v", block.Difficulty, expd)
 	}
 
-	// block.gasLimit - parent.gasLimit <= parent.gasLimit / GasLimitBoundDivisor
 	a := new(big.Int).Sub(block.GasLimit, parent.GasLimit)
 	a.Abs(a)
 	b := new(big.Int).Div(parent.GasLimit, params.GasLimitBoundDivisor)
@@ -303,8 +289,7 @@ func (sm *BlockProcessor) ValidateHeader(block, parent *types.Header, checkPow b
 		return fmt.Errorf("GasLimit check failed for block %v (%v > %v)", block.GasLimit, a, b)
 	}
 
-	// Allow future blocks up to 10 seconds
+	if int64(block.Time) > time.Now().Unix() {
-	if int64(block.Time) > time.Now().Unix()+4 {
 		return BlockFutureErr
 	}
 
@@ -391,13 +376,25 @@ func (sm *BlockProcessor) VerifyUncles(statedb *state.StateDB, block, parent *ty
 	return nil
 }
 
-func (sm *BlockProcessor) GetLogs(block *types.Block) (logs state.Logs, err error) {
+// GetBlockReceipts returns the receipts beloniging to the block hash
-	if !sm.bc.HasBlock(block.Header().ParentHash) {
+func (sm *BlockProcessor) GetBlockReceipts(bhash common.Hash) (receipts types.Receipts, err error) {
-		return nil, ParentError(block.Header().ParentHash)
+	return getBlockReceipts(sm.extraDb, bhash)
 }
 
-	sm.lastAttemptedBlock = block
+// GetLogs returns the logs of the given block. This method is using a two step approach
+// where it tries to get it from the (updated) method which gets them from the receipts or
+// the depricated way by re-processing the block.
+func (sm *BlockProcessor) GetLogs(block *types.Block) (logs state.Logs, err error) {
+	receipts, err := sm.GetBlockReceipts(block.Hash())
+	if err == nil && len(receipts) > 0 {
+		// coalesce logs
+		for _, receipt := range receipts {
+			logs = append(logs, receipt.Logs()...)
+		}
+		return
+	}
 
+	// TODO: remove backward compatibility
 	var (
 		parent = sm.bc.GetBlock(block.Header().ParentHash)
 		state  = state.New(parent.Root(), sm.db)
@@ -408,6 +405,16 @@ func (sm *BlockProcessor) GetLogs(block *types.Block) (logs state.Logs, err erro
 	return state.Logs(), nil
 }
 
+func getBlockReceipts(db common.Database, bhash common.Hash) (receipts types.Receipts, err error) {
+	var rdata []byte
+	rdata, err = db.Get(append(receiptsPre, bhash[:]...))
+
+	if err == nil {
+		err = rlp.DecodeBytes(rdata, &receipts)
+	}
+	return
+}
+
 func putTx(db common.Database, tx *types.Transaction, block *types.Block, i uint64) {
 	rlpEnc, err := rlp.EncodeToBytes(tx)
 	if err != nil {
@@ -431,3 +438,19 @@ func putTx(db common.Database, tx *types.Transaction, block *types.Block, i uint
 	}
 	db.Put(append(tx.Hash().Bytes(), 0x0001), rlpMeta)
 }
+
+func putReceipts(db common.Database, hash common.Hash, receipts types.Receipts) error {
+	storageReceipts := make([]*types.ReceiptForStorage, len(receipts))
+	for i, receipt := range receipts {
+		storageReceipts[i] = (*types.ReceiptForStorage)(receipt)
+	}
+
+	bytes, err := rlp.EncodeToBytes(storageReceipts)
+	if err != nil {
+		return err
+	}
+
+	db.Put(append(receiptsPre, hash[:]...), bytes)
+
+	return nil
+}

core/block_processor_test.go

@@ -5,6 +5,8 @@ import (
 	"testing"
 
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core/state"
+	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/pow/ezp"
@@ -35,3 +37,33 @@ func TestNumber(t *testing.T) {
 		t.Errorf("didn't expect block number error")
 	}
 }
+
+func TestPutReceipt(t *testing.T) {
+	db, _ := ethdb.NewMemDatabase()
+
+	var addr common.Address
+	addr[0] = 1
+	var hash common.Hash
+	hash[0] = 2
+
+	receipt := new(types.Receipt)
+	receipt.SetLogs(state.Logs{&state.Log{
+		Address:   addr,
+		Topics:    []common.Hash{hash},
+		Data:      []byte("hi"),
+		Number:    42,
+		TxHash:    hash,
+		TxIndex:   0,
+		BlockHash: hash,
+		Index:     0,
+	}})
+
+	putReceipts(db, hash, types.Receipts{receipt})
+	receipts, err := getBlockReceipts(db, hash)
+	if err != nil {
+		t.Error("got err:", err)
+	}
+	if len(receipts) != 1 {
+		t.Error("expected to get 1 receipt, got", len(receipts))
+	}
+}

core/blocks.go

@@ -2,7 +2,9 @@ package core
 
 import "github.com/ethereum/go-ethereum/common"
 
-var badHashes = []common.Hash{
+// Set of manually tracked bad hashes (usually hard forks)
-	common.HexToHash("f269c503aed286caaa0d114d6a5320e70abbc2febe37953207e76a2873f2ba79"),
+var BadHashes = map[common.Hash]bool{
-	common.HexToHash("38f5bbbffd74804820ffa4bab0cd540e9de229725afb98c1a7e57936f4a714bc"),
+	common.HexToHash("f269c503aed286caaa0d114d6a5320e70abbc2febe37953207e76a2873f2ba79"): true,
+	common.HexToHash("38f5bbbffd74804820ffa4bab0cd540e9de229725afb98c1a7e57936f4a714bc"): true,
+	common.HexToHash("7064455b364775a16afbdecd75370e912c6e2879f202eda85b9beae547fff3ac"): true,
 }

core/chain_manager.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"io"
 	"math/big"
+	"os"
 	"runtime"
 	"sync"
 	"time"
@@ -68,6 +69,7 @@ func CalcGasLimit(parent *types.Block) *big.Int {
 
 	gl := new(big.Int).Sub(parent.GasLimit(), decay)
 	gl = gl.Add(gl, contrib)
+	gl = gl.Add(gl, big.NewInt(1))
 	gl = common.BigMax(gl, params.MinGasLimit)
 
 	if gl.Cmp(params.GenesisGasLimit) < 0 {
@@ -119,7 +121,7 @@ func NewChainManager(blockDb, stateDb common.Database, pow pow.PoW, mux *event.T
 	bc.setLastState()
 
 	// Check the current state of the block hashes and make sure that we do not have any of the bad blocks in our chain
-	for _, hash := range badHashes {
+	for hash, _ := range BadHashes {
 		if block := bc.GetBlock(hash); block != nil {
 			glog.V(logger.Error).Infof("Found bad hash. Reorganising chain to state %x\n", block.ParentHash().Bytes()[:4])
 			block = bc.GetBlock(block.ParentHash())
@@ -233,14 +235,23 @@ func (bc *ChainManager) setLastState() {
 	data, _ := bc.blockDb.Get([]byte("LastBlock"))
 	if len(data) != 0 {
 		block := bc.GetBlock(common.BytesToHash(data))
+		if block != nil {
 			bc.currentBlock = block
 			bc.lastBlockHash = block.Hash()
-
+		} else { // TODO CLEAN THIS UP TMP CODE
-		// Set the last know difficulty (might be 0x0 as initial value, Genesis)
+			block = bc.GetBlockByNumber(400000)
-		bc.td = common.BigD(bc.blockDb.LastKnownTD())
+			if block == nil {
+				fmt.Println("Fatal. LastBlock not found. Report this issue")
+				os.Exit(1)
+			}
+			bc.currentBlock = block
+			bc.lastBlockHash = block.Hash()
+			bc.insert(block)
+		}
 	} else {
 		bc.Reset()
 	}
+	bc.td = bc.currentBlock.Td
 	bc.currentGasLimit = CalcGasLimit(bc.currentBlock)
 
 	if glog.V(logger.Info) {
@@ -471,7 +482,7 @@ func (self *ChainManager) GetAncestors(block *types.Block, length int) (blocks [
 }
 
 func (bc *ChainManager) setTotalDifficulty(td *big.Int) {
-	bc.blockDb.Put([]byte("LTD"), td.Bytes())
+	//bc.blockDb.Put([]byte("LTD"), td.Bytes())
 	bc.td = td
 }
 
@@ -537,18 +548,21 @@ func (self *ChainManager) InsertChain(chain types.Blocks) (int, error) {
 		tstart     = time.Now()
 	)
 
-	// check the nonce in parallel to the block processing
-	// this speeds catching up significantly
-	nonceErrCh := make(chan error)
-	go func() {
-		nonceErrCh <- verifyNonces(self.pow, chain)
-	}()
-
 	for i, block := range chain {
 		if block == nil {
 			continue
 		}
 
+		if BadHashes[block.Hash()] {
+			err := fmt.Errorf("Found known bad hash in chain %x", block.Hash())
+			blockErr(block, err)
+			return i, err
+		}
+
+		// create a nonce channel for parallisation of the nonce check
+		nonceErrCh := make(chan error)
+		go verifyBlockNonce(self.pow, block, nonceErrCh)
+
 		// Setting block.Td regardless of error (known for example) prevents errors down the line
 		// in the protocol handler
 		block.Td = new(big.Int).Set(CalcTD(block, self.GetBlock(block.ParentHash())))
@@ -557,13 +571,14 @@ func (self *ChainManager) InsertChain(chain types.Blocks) (int, error) {
 		// all others will fail too (unless a known block is returned).
 		logs, err := self.processor.Process(block)
 		if err != nil {
+			// empty the nonce channel
+			<-nonceErrCh
+
 			if IsKnownBlockErr(err) {
 				stats.ignored++
 				continue
 			}
 
-			// Do not penelise on future block. We'll need a block queue eventually that will queue
-			// future block for future use
 			if err == BlockFutureErr {
 				block.SetQueued(true)
 				self.futureBlocks.Push(block)
@@ -582,18 +597,23 @@ func (self *ChainManager) InsertChain(chain types.Blocks) (int, error) {
 
 			return i, err
 		}
+		// Wait and check nonce channel and make sure it checks out fine
+		// otherwise return the error
+		if err := <-nonceErrCh; err != nil {
+			return i, err
+		}
 
 		cblock := self.currentBlock
-		// Write block to database. Eventually we'll have to improve on this and throw away blocks that are
-		// not in the canonical chain.
-		self.write(block)
 		// Compare the TD of the last known block in the canonical chain to make sure it's greater.
 		// At this point it's possible that a different chain (fork) becomes the new canonical chain.
 		if block.Td.Cmp(self.td) > 0 {
 			// chain fork
 			if block.ParentHash() != cblock.Hash() {
 				// during split we merge two different chains and create the new canonical chain
-				self.merge(cblock, block)
+				err := self.merge(cblock, block)
+				if err != nil {
+					return i, err
+				}
 
 				queue[i] = ChainSplitEvent{block, logs}
 				queueEvent.splitCount++
@@ -626,19 +646,16 @@ func (self *ChainManager) InsertChain(chain types.Blocks) (int, error) {
 			queue[i] = ChainSideEvent{block, logs}
 			queueEvent.sideCount++
 		}
+		// Write block to database. Eventually we'll have to improve on this and throw away blocks that are
+		// not in the canonical chain.
+		self.write(block)
+		// Delete from future blocks
 		self.futureBlocks.Delete(block.Hash())
 
 		stats.processed++
 
 	}
 
-	// check and wait for the nonce error channel and
-	// make sure no nonce error was thrown in the process
-	err := <-nonceErrCh
-	if err != nil {
-		return 0, err
-	}
-
 	if (stats.queued > 0 || stats.processed > 0 || stats.ignored > 0) && bool(glog.V(logger.Info)) {
 		tend := time.Since(tstart)
 		start, end := chain[0], chain[len(chain)-1]
@@ -652,7 +669,7 @@ func (self *ChainManager) InsertChain(chain types.Blocks) (int, error) {
 
 // diff takes two blocks, an old chain and a new chain and will reconstruct the blocks and inserts them
 // to be part of the new canonical chain.
-func (self *ChainManager) diff(oldBlock, newBlock *types.Block) types.Blocks {
+func (self *ChainManager) diff(oldBlock, newBlock *types.Block) (types.Blocks, error) {
 	var (
 		newChain    types.Blocks
 		commonBlock *types.Block
@@ -663,14 +680,20 @@ func (self *ChainManager) diff(oldBlock, newBlock *types.Block) types.Blocks {
 	// first reduce whoever is higher bound
 	if oldBlock.NumberU64() > newBlock.NumberU64() {
 		// reduce old chain
-		for oldBlock = oldBlock; oldBlock.NumberU64() != newBlock.NumberU64(); oldBlock = self.GetBlock(oldBlock.ParentHash()) {
+		for oldBlock = oldBlock; oldBlock != nil && oldBlock.NumberU64() != newBlock.NumberU64(); oldBlock = self.GetBlock(oldBlock.ParentHash()) {
 		}
 	} else {
 		// reduce new chain and append new chain blocks for inserting later on
-		for newBlock = newBlock; newBlock.NumberU64() != oldBlock.NumberU64(); newBlock = self.GetBlock(newBlock.ParentHash()) {
+		for newBlock = newBlock; newBlock != nil && newBlock.NumberU64() != oldBlock.NumberU64(); newBlock = self.GetBlock(newBlock.ParentHash()) {
 			newChain = append(newChain, newBlock)
 		}
 	}
+	if oldBlock == nil {
+		return nil, fmt.Errorf("Invalid old chain")
+	}
+	if newBlock == nil {
+		return nil, fmt.Errorf("Invalid new chain")
+	}
 
 	numSplit := newBlock.Number()
 	for {
@@ -681,6 +704,12 @@ func (self *ChainManager) diff(oldBlock, newBlock *types.Block) types.Blocks {
 		newChain = append(newChain, newBlock)
 
 		oldBlock, newBlock = self.GetBlock(oldBlock.ParentHash()), self.GetBlock(newBlock.ParentHash())
+		if oldBlock == nil {
+			return nil, fmt.Errorf("Invalid old chain")
+		}
+		if newBlock == nil {
+			return nil, fmt.Errorf("Invalid new chain")
+		}
 	}
 
 	if glog.V(logger.Info) {
@@ -688,17 +717,22 @@ func (self *ChainManager) diff(oldBlock, newBlock *types.Block) types.Blocks {
 		glog.Infof("Fork detected @ %x. Reorganising chain from #%v %x to %x", commonHash[:4], numSplit, oldStart.Hash().Bytes()[:4], newStart.Hash().Bytes()[:4])
 	}
 
-	return newChain
+	return newChain, nil
 }
 
 // merge merges two different chain to the new canonical chain
-func (self *ChainManager) merge(oldBlock, newBlock *types.Block) {
+func (self *ChainManager) merge(oldBlock, newBlock *types.Block) error {
-	newChain := self.diff(oldBlock, newBlock)
+	newChain, err := self.diff(oldBlock, newBlock)
+	if err != nil {
+		return fmt.Errorf("chain reorg failed: %v", err)
+	}
 
 	// insert blocks. Order does not matter. Last block will be written in ImportChain itself which creates the new head properly
 	for _, block := range newChain {
 		self.insert(block)
 	}
+
+	return nil
 }
 
 func (self *ChainManager) update() {
@@ -740,7 +774,7 @@ out:
 
 func blockErr(block *types.Block, err error) {
 	h := block.Header()
-	glog.V(logger.Error).Infof("INVALID block #%v (%x)\n", h.Number, h.Hash().Bytes())
+	glog.V(logger.Error).Infof("Bad block #%v (%x)\n", h.Number, h.Hash().Bytes())
 	glog.V(logger.Error).Infoln(err)
 	glog.V(logger.Debug).Infoln(block)
 }
@@ -791,9 +825,17 @@ func verifyNonces(pow pow.PoW, blocks []*types.Block) error {
 func verifyNonce(pow pow.PoW, in <-chan *types.Block, done chan<- error) {
 	for block := range in {
 		if !pow.Verify(block) {
-			done <- ValidationError("Block(#%v) nonce is invalid (= %x)", block.Number(), block.Nonce)
+			done <- ValidationError("Block (#%v / %x) nonce is invalid (= %x)", block.Number(), block.Hash(), block.Nonce)
 		} else {
 			done <- nil
 		}
 	}
 }
+
+func verifyBlockNonce(pow pow.PoW, block *types.Block, done chan<- error) {
+	if !pow.Verify(block) {
+		done <- ValidationError("Block (#%v / %x) nonce is invalid (= %x)", block.Number(), block.Hash(), block.Nonce)
+	} else {
+		done <- nil
+	}
+}

core/manager.go

@@ -3,9 +3,7 @@ package core
 import (
 	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/eth/downloader"
 	"github.com/ethereum/go-ethereum/event"
-	"github.com/ethereum/go-ethereum/p2p"
 )
 
 // TODO move this to types?
@@ -14,11 +12,7 @@ type Backend interface {
 	BlockProcessor() *BlockProcessor
 	ChainManager() *ChainManager
 	TxPool() *TxPool
-	PeerCount() int
-	IsListening() bool
-	Peers() []*p2p.Peer
 	BlockDb() common.Database
 	StateDb() common.Database
 	EventMux() *event.TypeMux
-	Downloader() *downloader.Downloader
 }

core/state/log.go

@@ -29,15 +29,22 @@ func (self *Log) EncodeRLP(w io.Writer) error {
 }
 
 func (self *Log) String() string {
-	return fmt.Sprintf(`log: %x %x %x`, self.Address, self.Topics, self.Data)
+	return fmt.Sprintf(`log: %x %x %x %x %d %x %d`, self.Address, self.Topics, self.Data, self.TxHash, self.TxIndex, self.BlockHash, self.Index)
 }
 
 type Logs []*Log
 
-func (self Logs) String() (ret string) {
+type LogForStorage Log
-	for _, log := range self {
-		ret += fmt.Sprintf("%v", log)
-	}
 
-	return "[" + ret + "]"
+func (self *LogForStorage) EncodeRLP(w io.Writer) error {
+	return rlp.Encode(w, []interface{}{
+		self.Address,
+		self.Topics,
+		self.Data,
+		self.Number,
+		self.TxHash,
+		self.TxIndex,
+		self.BlockHash,
+		self.Index,
+	})
 }

core/transaction_pool.go

@@ -25,6 +25,7 @@ var (
 	ErrInsufficientFunds  = errors.New("Insufficient funds for gas * price + value")
 	ErrIntrinsicGas       = errors.New("Intrinsic gas too low")
 	ErrGasLimit           = errors.New("Exceeds block gas limit")
+	ErrNegativeValue      = errors.New("Negative value")
 )
 
 const txPoolQueueSize = 50
@@ -125,6 +126,10 @@ func (pool *TxPool) ValidateTransaction(tx *types.Transaction) error {
 		return ErrGasLimit
 	}
 
+	if tx.Amount.Cmp(common.Big0) < 0 {
+		return ErrNegativeValue
+	}
+
 	total := new(big.Int).Mul(tx.Price, tx.GasLimit)
 	total.Add(total, tx.Value())
 	if pool.currentState().GetBalance(from).Cmp(total) < 0 {

core/transaction_pool_test.go

@@ -138,3 +138,17 @@ func TestRemoveTx(t *testing.T) {
 		t.Error("expected txs to be 0, got", len(pool.txs))
 	}
 }
+
+func TestNegativeValue(t *testing.T) {
+	pool, key := setupTxPool()
+
+	tx := transaction()
+	tx.Value().Set(big.NewInt(-1))
+	tx.SignECDSA(key)
+	from, _ := tx.From()
+	pool.currentState().AddBalance(from, big.NewInt(1))
+	err := pool.Add(tx)
+	if err != ErrNegativeValue {
+		t.Error("expected", ErrNegativeValue, "got", err)
+	}
+}

core/types/receipt.go

@@ -26,10 +26,39 @@ func (self *Receipt) SetLogs(logs state.Logs) {
 	self.logs = logs
 }
 
+func (self *Receipt) Logs() state.Logs {
+	return self.logs
+}
+
 func (self *Receipt) EncodeRLP(w io.Writer) error {
 	return rlp.Encode(w, []interface{}{self.PostState, self.CumulativeGasUsed, self.Bloom, self.logs})
 }
 
+func (self *Receipt) DecodeRLP(s *rlp.Stream) error {
+	var r struct {
+		PostState         []byte
+		CumulativeGasUsed *big.Int
+		Bloom             Bloom
+		Logs              state.Logs
+	}
+	if err := s.Decode(&r); err != nil {
+		return err
+	}
+	self.PostState, self.CumulativeGasUsed, self.Bloom, self.logs = r.PostState, r.CumulativeGasUsed, r.Bloom, r.Logs
+
+	return nil
+}
+
+type ReceiptForStorage Receipt
+
+func (self *ReceiptForStorage) EncodeRLP(w io.Writer) error {
+	storageLogs := make([]*state.LogForStorage, len(self.logs))
+	for i, log := range self.logs {
+		storageLogs[i] = (*state.LogForStorage)(log)
+	}
+	return rlp.Encode(w, []interface{}{self.PostState, self.CumulativeGasUsed, self.Bloom, storageLogs})
+}
+
 func (self *Receipt) RlpEncode() []byte {
 	bytes, err := rlp.EncodeToBytes(self)
 	if err != nil {

eth/backend.go

@@ -72,6 +72,7 @@ type Config struct {
 
 	MaxPeers        int
 	MaxPendingPeers int
+	Discovery       bool
 	Port            string
 
 	// Space-separated list of discovery node URLs
@@ -311,6 +312,7 @@ func New(config *Config) (*Ethereum, error) {
 		Name:            config.Name,
 		MaxPeers:        config.MaxPeers,
 		MaxPendingPeers: config.MaxPendingPeers,
+		Discovery:       config.Discovery,
 		Protocols:       protocols,
 		NAT:             config.NAT,
 		NoDial:          !config.Dial,
@@ -449,14 +451,10 @@ func (s *Ethereum) Start() error {
 		ClientString:    s.net.Name,
 		ProtocolVersion: ProtocolVersion,
 	})
-
-	if s.net.MaxPeers > 0 {
 	err := s.net.Start()
 	if err != nil {
 		return err
 	}
-	}
-
 	// periodically flush databases
 	go s.syncDatabases()
 

eth/downloader/downloader.go

@@ -7,7 +7,10 @@ import (
 	"sync/atomic"
 	"time"
 
+	"gopkg.in/fatih/set.v0"
+
 	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/core"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/logger"
@@ -75,6 +78,7 @@ type Downloader struct {
 	queue  *queue                      // Scheduler for selecting the hashes to download
 	peers  *peerSet                    // Set of active peers from which download can proceed
 	checks map[common.Hash]*crossCheck // Pending cross checks to verify a hash chain
+	banned *set.SetNonTS               // Set of hashes we've received and banned
 
 	// Callbacks
 	hasBlock hashCheckFn
@@ -100,6 +104,7 @@ type Block struct {
 }
 
 func New(mux *event.TypeMux, hasBlock hashCheckFn, getBlock getBlockFn) *Downloader {
+	// Create the base downloader
 	downloader := &Downloader{
 		mux:       mux,
 		queue:     newQueue(),
@@ -110,6 +115,11 @@ func New(mux *event.TypeMux, hasBlock hashCheckFn, getBlock getBlockFn) *Downloa
 		hashCh:    make(chan hashPack, 1),
 		blockCh:   make(chan blockPack, 1),
 	}
+	// Inject all the known bad hashes
+	downloader.banned = set.NewNonTS()
+	for hash, _ := range core.BadHashes {
+		downloader.banned.Add(hash)
+	}
 	return downloader
 }
 
@@ -280,6 +290,12 @@ func (d *Downloader) fetchHashes(p *peer, h common.Hash) error {
 				glog.V(logger.Debug).Infof("Peer (%s) responded with empty hash set\n", active.id)
 				return errEmptyHashSet
 			}
+			for _, hash := range hashPack.hashes {
+				if d.banned.Has(hash) {
+					glog.V(logger.Debug).Infof("Peer (%s) sent a known invalid chain\n", active.id)
+					return ErrInvalidChain
+				}
+			}
 			// Determine if we're done fetching hashes (queue up all pending), and continue if not done
 			done, index := false, 0
 			for index, head = range hashPack.hashes {
@@ -415,7 +431,7 @@ out:
 					peer.Demote()
 					break
 				}
-				if glog.V(logger.Debug) {
+				if glog.V(logger.Debug) && len(blockPack.blocks) > 0 {
 					glog.Infof("Added %d blocks from: %s\n", len(blockPack.blocks), blockPack.peerId)
 				}
 				// Promote the peer and update it's idle state

eth/handler.go

@@ -2,7 +2,6 @@ package eth
 
 import (
 	"fmt"
-	"math"
 	"math/big"
 	"sync"
 	"time"
@@ -93,14 +92,22 @@ func NewProtocolManager(protocolVersion, networkId int, mux *event.TypeMux, txpo
 }
 
 func (pm *ProtocolManager) removePeer(id string) {
-	// Unregister the peer from the downloader
+	// Short circuit if the peer was already removed
-	pm.downloader.UnregisterPeer(id)
+	peer := pm.peers.Peer(id)
+	if peer == nil {
+		return
+	}
+	glog.V(logger.Debug).Infoln("Removing peer", id)
 
-	// Remove the peer from the Ethereum peer set too
+	// Unregister the peer from the downloader and Ethereum peer set
-	glog.V(logger.Detail).Infoln("Removing peer", id)
+	pm.downloader.UnregisterPeer(id)
 	if err := pm.peers.Unregister(id); err != nil {
 		glog.V(logger.Error).Infoln("Removal failed:", err)
 	}
+	// Hard disconnect at the networking layer
+	if peer != nil {
+		peer.Peer.Disconnect(p2p.DiscUselessPeer)
+	}
 }
 
 func (pm *ProtocolManager) Start() {
@@ -351,7 +358,7 @@ func (pm *ProtocolManager) verifyTd(peer *peer, request newBlockMsgData) error {
 func (pm *ProtocolManager) BroadcastBlock(hash common.Hash, block *types.Block) {
 	// Broadcast block to a batch of peers not knowing about it
 	peers := pm.peers.PeersWithoutBlock(hash)
-	peers = peers[:int(math.Sqrt(float64(len(peers))))]
+	//peers = peers[:int(math.Sqrt(float64(len(peers))))]
 	for _, peer := range peers {
 		peer.sendNewBlock(block)
 	}

eth/sync.go

@@ -70,7 +70,7 @@ func (pm *ProtocolManager) processBlocks() error {
 		// Try to inset the blocks, drop the originating peer if there's an error
 		index, err := pm.chainman.InsertChain(raw)
 		if err != nil {
-			glog.V(logger.Warn).Infof("Block insertion failed: %v", err)
+			glog.V(logger.Debug).Infoln("Downloaded block import failed:", err)
 			pm.removePeer(blocks[index].OriginPeer)
 			pm.downloader.Cancel()
 			return err
@@ -85,12 +85,10 @@ func (pm *ProtocolManager) processBlocks() error {
 func (pm *ProtocolManager) synchronise(peer *peer) {
 	// Short circuit if no peers are available
 	if peer == nil {
-		glog.V(logger.Debug).Infoln("Synchronisation canceled: no peers available")
 		return
 	}
 	// Make sure the peer's TD is higher than our own. If not drop.
 	if peer.td.Cmp(pm.chainman.Td()) <= 0 {
-		glog.V(logger.Debug).Infoln("Synchronisation canceled: peer's total difficulty is too small")
 		return
 	}
 	// FIXME if we have the hash in our chain and the TD of the peer is

ethdb/database.go

@@ -1,8 +1,6 @@
 package ethdb
 
 import (
-	"sync"
-
 	"github.com/ethereum/go-ethereum/compression/rle"
 	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/logger/glog"
@@ -15,14 +13,10 @@ import (
 var OpenFileLimit = 64
 
 type LDBDatabase struct {
+	// filename for reporting
 	fn string
-
+	// LevelDB instance
-	mu sync.Mutex
 	db *leveldb.DB
-
-	queue map[string][]byte
-
-	quit chan struct{}
 }
 
 // NewLDBDatabase returns a LevelDB wrapped object. LDBDatabase does not persist data by
@@ -42,83 +36,37 @@ func NewLDBDatabase(file string) (*LDBDatabase, error) {
 	database := &LDBDatabase{
 		fn: file,
 		db: db,
-		quit: make(chan struct{}),
 	}
-	database.makeQueue()
 
 	return database, nil
 }
 
-func (self *LDBDatabase) makeQueue() {
-	self.queue = make(map[string][]byte)
-}
-
 // Put puts the given key / value to the queue
 func (self *LDBDatabase) Put(key []byte, value []byte) {
-	self.mu.Lock()
+	self.db.Put(key, rle.Compress(value), nil)
-	defer self.mu.Unlock()
-
-	self.queue[string(key)] = value
 }
 
 // Get returns the given key if it's present.
 func (self *LDBDatabase) Get(key []byte) ([]byte, error) {
-	self.mu.Lock()
-	defer self.mu.Unlock()
-
-	// Check queue first
-	if dat, ok := self.queue[string(key)]; ok {
-		return dat, nil
-	}
-
 	dat, err := self.db.Get(key, nil)
 	if err != nil {
 		return nil, err
 	}
-
 	return rle.Decompress(dat)
 }
 
 // Delete deletes the key from the queue and database
 func (self *LDBDatabase) Delete(key []byte) error {
-	self.mu.Lock()
-	defer self.mu.Unlock()
-
-	// make sure it's not in the queue
-	delete(self.queue, string(key))
-
 	return self.db.Delete(key, nil)
 }
 
-func (self *LDBDatabase) LastKnownTD() []byte {
-	data, _ := self.Get([]byte("LTD"))
-
-	if len(data) == 0 {
-		data = []byte{0x0}
-	}
-
-	return data
-}
-
 func (self *LDBDatabase) NewIterator() iterator.Iterator {
 	return self.db.NewIterator(nil, nil)
 }
 
 // Flush flushes out the queue to leveldb
 func (self *LDBDatabase) Flush() error {
-	self.mu.Lock()
+	return nil
-	defer self.mu.Unlock()
-
-	batch := new(leveldb.Batch)
-
-	for key, value := range self.queue {
-		batch.Put([]byte(key), rle.Compress(value))
-	}
-	self.makeQueue() // reset the queue
-
-	glog.V(logger.Detail).Infoln("Flush database: ", self.fn)
-
-	return self.db.Write(batch, nil)
 }
 
 func (self *LDBDatabase) Close() {

jsre/jsre.go

@@ -20,8 +20,6 @@ It provides some helper functions to
 */
 type JSRE struct {
 	assetPath     string
-	vm        *otto.Otto
-
 	evalQueue     chan *evalReq
 	stopEventLoop chan bool
 	loopWg        sync.WaitGroup
@@ -35,68 +33,37 @@ type jsTimer struct {
 	call     otto.FunctionCall
 }
 
-// evalResult is a structure to store the result of any serialized vm execution
+// evalReq is a serialized vm execution request processed by runEventLoop.
-type evalResult struct {
-	result otto.Value
-	err    error
-}
-
-// evalReq is a serialized vm execution request put in evalQueue and processed by runEventLoop
 type evalReq struct {
-	fn   func(res *evalResult)
+	fn   func(vm *otto.Otto)
 	done chan bool
-	res  evalResult
 }
 
 // runtime must be stopped with Stop() after use and cannot be used after stopping
 func New(assetPath string) *JSRE {
 	re := &JSRE{
 		assetPath:     assetPath,
-		vm:        otto.New(),
+		evalQueue:     make(chan *evalReq),
+		stopEventLoop: make(chan bool),
 	}
-
-	// load prettyprint func definition
-	re.vm.Run(pp_js)
-	re.vm.Set("loadScript", re.loadScript)
-
-	re.evalQueue = make(chan *evalReq)
-	re.stopEventLoop = make(chan bool)
 	re.loopWg.Add(1)
 	go re.runEventLoop()
-
+	re.Compile("pp.js", pp_js) // load prettyprint func definition
+	re.Set("loadScript", re.loadScript)
 	return re
 }
 
-// this function runs a piece of JS code either in a serialized way (when useEQ is true) or instantly, circumventing the evalQueue
+// This function runs the main event loop from a goroutine that is started
-func (self *JSRE) run(src interface{}, useEQ bool) (value otto.Value, err error) {
+// when JSRE is created. Use Stop() before exiting to properly stop it.
-	if useEQ {
+// The event loop processes vm access requests from the evalQueue in a
-		done := make(chan bool)
+// serialized way and calls timer callback functions at the appropriate time.
-		req := &evalReq{
-			fn: func(res *evalResult) {
-				res.result, res.err = self.vm.Run(src)
-			},
-			done: done,
-		}
-		self.evalQueue <- req
-		<-done
-		return req.res.result, req.res.err
-	} else {
-		return self.vm.Run(src)
-	}
-}
 
-/*
+// Exported functions always access the vm through the event queue. You can
-This function runs the main event loop from a goroutine that is started
+// call the functions of the otto vm directly to circumvent the queue. These
- when JSRE is created. Use Stop() before exiting to properly stop it.
+// functions should be used if and only if running a routine that was already
-The event loop processes vm access requests from the evalQueue in a
+// called from JS through an RPC call.
- serialized way and calls timer callback functions at the appropriate time.
-
-Exported functions always access the vm through the event queue. You can
- call the functions of the otto vm directly to circumvent the queue. These
- functions should be used if and only if running a routine that was already
- called from JS through an RPC call.
-*/
 func (self *JSRE) runEventLoop() {
+	vm := otto.New()
 	registry := map[*jsTimer]*jsTimer{}
 	ready := make(chan *jsTimer)
 
@@ -143,10 +110,10 @@ func (self *JSRE) runEventLoop() {
 		}
 		return otto.UndefinedValue()
 	}
-	self.vm.Set("setTimeout", setTimeout)
+	vm.Set("setTimeout", setTimeout)
-	self.vm.Set("setInterval", setInterval)
+	vm.Set("setInterval", setInterval)
-	self.vm.Set("clearTimeout", clearTimeout)
+	vm.Set("clearTimeout", clearTimeout)
-	self.vm.Set("clearInterval", clearTimeout)
+	vm.Set("clearInterval", clearTimeout)
 
 	var waitForCallbacks bool
 
@@ -166,8 +133,7 @@ loop:
 				arguments = make([]interface{}, 1)
 			}
 			arguments[0] = timer.call.ArgumentList[0]
-			_, err := self.vm.Call(`Function.call.call`, nil, arguments...)
+			_, err := vm.Call(`Function.call.call`, nil, arguments...)
-
 			if err != nil {
 				fmt.Println("js error:", err, arguments)
 			}
@@ -179,10 +145,10 @@ loop:
 					break loop
 				}
 			}
-		case evalReq := <-self.evalQueue:
+		case req := <-self.evalQueue:
 			// run the code, send the result back
-			evalReq.fn(&evalReq.res)
+			req.fn(vm)
-			close(evalReq.done)
+			close(req.done)
 			if waitForCallbacks && (len(registry) == 0) {
 				break loop
 			}
@@ -201,6 +167,14 @@ loop:
 	self.loopWg.Done()
 }
 
+// do schedules the given function on the event loop.
+func (self *JSRE) do(fn func(*otto.Otto)) {
+	done := make(chan bool)
+	req := &evalReq{fn, done}
+	self.evalQueue <- req
+	<-done
+}
+
 // stops the event loop before exit, optionally waits for all timers to expire
 func (self *JSRE) Stop(waitForCallbacks bool) {
 	self.stopEventLoop <- waitForCallbacks
@@ -210,119 +184,78 @@ func (self *JSRE) Stop(waitForCallbacks bool) {
 // Exec(file) loads and runs the contents of a file
 // if a relative path is given, the jsre's assetPath is used
 func (self *JSRE) Exec(file string) error {
-	return self.exec(common.AbsolutePath(self.assetPath, file), true)
+	code, err := ioutil.ReadFile(common.AbsolutePath(self.assetPath, file))
-}
-
-// circumvents the eval queue, see runEventLoop
-func (self *JSRE) execWithoutEQ(file string) error {
-	return self.exec(common.AbsolutePath(self.assetPath, file), false)
-}
-
-func (self *JSRE) exec(path string, useEQ bool) error {
-	code, err := ioutil.ReadFile(path)
 	if err != nil {
 		return err
 	}
-	_, err = self.run(code, useEQ)
+	self.do(func(vm *otto.Otto) { _, err = vm.Run(code) })
 	return err
 }
 
-// assigns value v to a variable in the JS environment
+// Bind assigns value v to a variable in the JS environment
-func (self *JSRE) Bind(name string, v interface{}) (err error) {
+// This method is deprecated, use Set.
-	self.Set(name, v)
+func (self *JSRE) Bind(name string, v interface{}) error {
-	return
+	return self.Set(name, v)
 }
 
-// runs a piece of JS code
+// Run runs a piece of JS code.
-func (self *JSRE) Run(code string) (otto.Value, error) {
+func (self *JSRE) Run(code string) (v otto.Value, err error) {
-	return self.run(code, true)
+	self.do(func(vm *otto.Otto) { v, err = vm.Run(code) })
+	return v, err
 }
 
-// returns the value of a variable in the JS environment
+// Get returns the value of a variable in the JS environment.
-func (self *JSRE) Get(ns string) (otto.Value, error) {
+func (self *JSRE) Get(ns string) (v otto.Value, err error) {
-	done := make(chan bool)
+	self.do(func(vm *otto.Otto) { v, err = vm.Get(ns) })
-	req := &evalReq{
+	return v, err
-		fn: func(res *evalResult) {
-			res.result, res.err = self.vm.Get(ns)
-		},
-		done: done,
-	}
-	self.evalQueue <- req
-	<-done
-	return req.res.result, req.res.err
 }
 
-// assigns value v to a variable in the JS environment
+// Set assigns value v to a variable in the JS environment.
-func (self *JSRE) Set(ns string, v interface{}) error {
+func (self *JSRE) Set(ns string, v interface{}) (err error) {
-	done := make(chan bool)
+	self.do(func(vm *otto.Otto) { err = vm.Set(ns, v) })
-	req := &evalReq{
+	return err
-		fn: func(res *evalResult) {
-			res.err = self.vm.Set(ns, v)
-		},
-		done: done,
-	}
-	self.evalQueue <- req
-	<-done
-	return req.res.err
 }
 
-/*
+// loadScript executes a JS script from inside the currently executing JS code.
-Executes a JS script from inside the currently executing JS code.
-Should only be called from inside an RPC routine.
-*/
 func (self *JSRE) loadScript(call otto.FunctionCall) otto.Value {
 	file, err := call.Argument(0).ToString()
 	if err != nil {
+		// TODO: throw exception
 		return otto.FalseValue()
 	}
-	if err := self.execWithoutEQ(file); err != nil { // loadScript is only called from inside js
+	file = common.AbsolutePath(self.assetPath, file)
+	source, err := ioutil.ReadFile(file)
+	if err != nil {
+		// TODO: throw exception
+		return otto.FalseValue()
+	}
+	if _, err := compileAndRun(call.Otto, file, source); err != nil {
+		// TODO: throw exception
 		fmt.Println("err:", err)
 		return otto.FalseValue()
 	}
-
+	// TODO: return evaluation result
 	return otto.TrueValue()
 }
 
-// uses the "prettyPrint" JS function to format a value
+// PrettyPrint writes v to standard output.
 func (self *JSRE) PrettyPrint(v interface{}) (val otto.Value, err error) {
 	var method otto.Value
-	v, err = self.ToValue(v)
+	self.do(func(vm *otto.Otto) {
+		val, err = vm.ToValue(v)
 		if err != nil {
 			return
 		}
-	method, err = self.vm.Get("prettyPrint")
+		method, err = vm.Get("prettyPrint")
 		if err != nil {
 			return
 		}
-	return method.Call(method, v)
+		val, err = method.Call(method, val)
+	})
+	return val, err
 }
 
-// creates an otto value from a go type (serialized version)
+// Eval evaluates JS function and returns result in a pretty printed string format.
-func (self *JSRE) ToValue(v interface{}) (otto.Value, error) {
-	done := make(chan bool)
-	req := &evalReq{
-		fn: func(res *evalResult) {
-			res.result, res.err = self.vm.ToValue(v)
-		},
-		done: done,
-	}
-	self.evalQueue <- req
-	<-done
-	return req.res.result, req.res.err
-}
-
-// creates an otto value from a go type (non-serialized version)
-func (self *JSRE) ToVal(v interface{}) otto.Value {
-
-	result, err := self.vm.ToValue(v)
-	if err != nil {
-		fmt.Println("Value unknown:", err)
-		return otto.UndefinedValue()
-	}
-	return result
-}
-
-// evaluates JS function and returns result in a pretty printed string format
 func (self *JSRE) Eval(code string) (s string, err error) {
 	var val otto.Value
 	val, err = self.Run(code)
@@ -336,12 +269,16 @@ func (self *JSRE) Eval(code string) (s string, err error) {
 	return fmt.Sprintf("%v", val), nil
 }
 
-// compiles and then runs a piece of JS code
+// Compile compiles and then runs a piece of JS code.
-func (self *JSRE) Compile(fn string, src interface{}) error {
+func (self *JSRE) Compile(filename string, src interface{}) (err error) {
-	script, err := self.vm.Compile(fn, src)
+	self.do(func(vm *otto.Otto) { _, err = compileAndRun(vm, filename, src) })
-	if err != nil {
 	return err
 }
-	self.run(script, true)
+
-	return nil
+func compileAndRun(vm *otto.Otto, filename string, src interface{}) (otto.Value, error) {
+	script, err := vm.Compile(filename, src)
+	if err != nil {
+		return otto.Value{}, err
+	}
+	return vm.Run(script)
 }

jsre/jsre_test.go

@@ -1,16 +1,15 @@
 package jsre
 
 import (
-	"github.com/robertkrimen/otto"
 	"io/ioutil"
 	"os"
 	"testing"
 	"time"
+
+	"github.com/robertkrimen/otto"
 )
 
-type testNativeObjectBinding struct {
+type testNativeObjectBinding struct{}
-	toVal func(interface{}) otto.Value
-}
 
 type msg struct {
 	Msg string
@@ -21,7 +20,8 @@ func (no *testNativeObjectBinding) TestMethod(call otto.FunctionCall) otto.Value
 	if err != nil {
 		return otto.UndefinedValue()
 	}
-	return no.toVal(&msg{m})
+	v, _ := call.Otto.ToValue(&msg{m})
+	return v
 }
 
 func TestExec(t *testing.T) {
@@ -74,7 +74,7 @@ func TestNatto(t *testing.T) {
 func TestBind(t *testing.T) {
 	jsre := New("/tmp")
 
-	jsre.Bind("no", &testNativeObjectBinding{jsre.ToVal})
+	jsre.Bind("no", &testNativeObjectBinding{})
 
 	val, err := jsre.Run(`no.TestMethod("testMsg")`)
 	if err != nil {

miner/worker.go

@@ -38,6 +38,13 @@ type Agent interface {
 	GetHashRate() int64
 }
 
+const miningLogAtDepth = 5
+
+type uint64RingBuffer struct {
+	ints []uint64 //array of all integers in buffer
+	next int      //where is the next insertion? assert 0 <= next < len(ints)
+}
+
 // environment is the workers current environment and holds
 // all of the current state information
 type environment struct {
@@ -54,6 +61,7 @@ type environment struct {
 	lowGasTransactors  *set.Set
 	ownedAccounts      *set.Set
 	lowGasTxs          types.Transactions
+	localMinedBlocks   *uint64RingBuffer // the most recent block numbers that were mined locally (used to check block inclusion)
 }
 
 // env returns a new environment for the current cycle
@@ -209,6 +217,18 @@ out:
 	events.Unsubscribe()
 }
 
+func newLocalMinedBlock(blockNumber uint64, prevMinedBlocks *uint64RingBuffer) (minedBlocks *uint64RingBuffer) {
+	if prevMinedBlocks == nil {
+		minedBlocks = &uint64RingBuffer{next: 0, ints: make([]uint64, miningLogAtDepth+1)}
+	} else {
+		minedBlocks = prevMinedBlocks
+	}
+
+	minedBlocks.ints[minedBlocks.next] = blockNumber
+	minedBlocks.next = (minedBlocks.next + 1) % len(minedBlocks.ints)
+	return minedBlocks
+}
+
 func (self *worker) wait() {
 	for {
 		for block := range self.recv {
@@ -224,13 +244,16 @@ func (self *worker) wait() {
 				}
 				self.mux.Post(core.NewMinedBlockEvent{block})
 
-				var stale string
+				var stale, confirm string
 				canonBlock := self.chain.GetBlockByNumber(block.NumberU64())
 				if canonBlock != nil && canonBlock.Hash() != block.Hash() {
-					stale = "stale-"
+					stale = "stale "
+				} else {
+					confirm = "Wait 5 blocks for confirmation"
+					self.current.localMinedBlocks = newLocalMinedBlock(block.Number().Uint64(), self.current.localMinedBlocks)
 				}
 
-				glog.V(logger.Info).Infof("🔨  Mined %sblock #%v (%x)", stale, block.Number(), block.Hash().Bytes()[:4])
+				glog.V(logger.Info).Infof("🔨  Mined %sblock (#%v / %x). %s", stale, block.Number(), block.Hash().Bytes()[:4], confirm)
 
 				jsonlogger.LogJson(&logger.EthMinerNewBlock{
 					BlockHash:     block.Hash().Hex(),
@@ -265,8 +288,14 @@ func (self *worker) push() {
 
 func (self *worker) makeCurrent() {
 	block := self.chain.NewBlock(self.coinbase)
-	if block.Time() == self.chain.CurrentBlock().Time() {
+	parent := self.chain.GetBlock(block.ParentHash())
-		block.Header().Time++
+	// TMP fix for build server ...
+	if parent == nil {
+		return
+	}
+
+	if block.Time() <= parent.Time() {
+		block.Header().Time = parent.Header().Time + 1
 	}
 	block.Header().Extra = self.extra
 
@@ -286,8 +315,10 @@ func (self *worker) makeCurrent() {
 	current.ignoredTransactors = set.New()
 	current.lowGasTransactors = set.New()
 	current.ownedAccounts = accountAddressesSet(accounts)
+	if self.current != nil {
+		current.localMinedBlocks = self.current.localMinedBlocks
+	}
 
-	parent := self.chain.GetBlock(current.block.ParentHash())
 	current.coinbase.SetGasPool(core.CalcGasLimit(parent))
 
 	self.current = current
@@ -304,6 +335,38 @@ func (w *worker) setGasPrice(p *big.Int) {
 	w.mux.Post(core.GasPriceChanged{w.gasPrice})
 }
 
+func (self *worker) isBlockLocallyMined(deepBlockNum uint64) bool {
+	//Did this instance mine a block at {deepBlockNum} ?
+	var isLocal = false
+	for idx, blockNum := range self.current.localMinedBlocks.ints {
+		if deepBlockNum == blockNum {
+			isLocal = true
+			self.current.localMinedBlocks.ints[idx] = 0 //prevent showing duplicate logs
+			break
+		}
+	}
+	//Short-circuit on false, because the previous and following tests must both be true
+	if !isLocal {
+		return false
+	}
+
+	//Does the block at {deepBlockNum} send earnings to my coinbase?
+	var block = self.chain.GetBlockByNumber(deepBlockNum)
+	return block.Header().Coinbase == self.coinbase
+}
+
+func (self *worker) logLocalMinedBlocks(previous *environment) {
+	if previous != nil && self.current.localMinedBlocks != nil {
+		nextBlockNum := self.current.block.Number().Uint64()
+		for checkBlockNum := previous.block.Number().Uint64(); checkBlockNum < nextBlockNum; checkBlockNum++ {
+			inspectBlockNum := checkBlockNum - miningLogAtDepth
+			if self.isBlockLocallyMined(inspectBlockNum) {
+				glog.V(logger.Info).Infof("🔨 🔗  Mined %d blocks back: block #%v", miningLogAtDepth, inspectBlockNum)
+			}
+		}
+	}
+}
+
 func (self *worker) commitNewWork() {
 	self.mu.Lock()
 	defer self.mu.Unlock()
@@ -312,6 +375,7 @@ func (self *worker) commitNewWork() {
 	self.currentMu.Lock()
 	defer self.currentMu.Unlock()
 
+	previous := self.current
 	self.makeCurrent()
 	current := self.current
 
@@ -347,6 +411,7 @@ func (self *worker) commitNewWork() {
 	// We only care about logging if we're actually mining
 	if atomic.LoadInt32(&self.mining) == 1 {
 		glog.V(logger.Info).Infof("commit new work on block %v with %d txs & %d uncles\n", current.block.Number(), current.tcount, len(uncles))
+		self.logLocalMinedBlocks(previous)
 	}
 
 	for _, hash := range badUncles {

p2p/discover/database.go

@@ -47,6 +47,7 @@ var (
 	nodeDBDiscoverRoot      = ":discover"
 	nodeDBDiscoverPing      = nodeDBDiscoverRoot + ":lastping"
 	nodeDBDiscoverPong      = nodeDBDiscoverRoot + ":lastpong"
+	nodeDBDiscoverFindFails = nodeDBDiscoverRoot + ":findfail"
 )
 
 // newNodeDB creates a new node database for storing and retrieving infos about
@@ -275,6 +276,16 @@ func (db *nodeDB) updateLastPong(id NodeID, instance time.Time) error {
 	return db.storeInt64(makeKey(id, nodeDBDiscoverPong), instance.Unix())
 }
 
+// findFails retrieves the number of findnode failures since bonding.
+func (db *nodeDB) findFails(id NodeID) int {
+	return int(db.fetchInt64(makeKey(id, nodeDBDiscoverFindFails)))
+}
+
+// updateFindFails updates the number of findnode failures since bonding.
+func (db *nodeDB) updateFindFails(id NodeID, fails int) error {
+	return db.storeInt64(makeKey(id, nodeDBDiscoverFindFails), int64(fails))
+}
+
 // querySeeds retrieves a batch of nodes to be used as potential seed servers
 // during bootstrapping the node into the network.
 //

p2p/discover/database_test.go

@@ -93,6 +93,7 @@ func TestNodeDBFetchStore(t *testing.T) {
 		30303,
 	)
 	inst := time.Now()
+	num := 314
 
 	db, _ := newNodeDB("", Version, NodeID{})
 	defer db.close()
@@ -117,6 +118,16 @@ func TestNodeDBFetchStore(t *testing.T) {
 	if stored := db.lastPong(node.ID); stored.Unix() != inst.Unix() {
 		t.Errorf("pong: value mismatch: have %v, want %v", stored, inst)
 	}
+	// Check fetch/store operations on a node findnode-failure object
+	if stored := db.findFails(node.ID); stored != 0 {
+		t.Errorf("find-node fails: non-existing object: %v", stored)
+	}
+	if err := db.updateFindFails(node.ID, num); err != nil {
+		t.Errorf("find-node fails: failed to update: %v", err)
+	}
+	if stored := db.findFails(node.ID); stored != num {
+		t.Errorf("find-node fails: value mismatch: have %v, want %v", stored, num)
+	}
 	// Check fetch/store operations on an actual node object
 	if stored := db.node(node.ID); stored != nil {
 		t.Errorf("node: non-existing object: %v", stored)

p2p/discover/table.go

@@ -27,6 +27,7 @@ const (
 	nBuckets   = hashBits + 1 // Number of buckets
 
 	maxBondingPingPongs = 16
+	maxFindnodeFailures = 5
 )
 
 type Table struct {
@@ -190,6 +191,12 @@ func (tab *Table) Lookup(targetID NodeID) []*Node {
 	result := tab.closest(target, bucketSize)
 	tab.mutex.Unlock()
 
+	// If the result set is empty, all nodes were dropped, refresh
+	if len(result.entries) == 0 {
+		tab.refresh()
+		return nil
+	}
+
 	for {
 		// ask the alpha closest nodes that we haven't asked yet
 		for i := 0; i < len(result.entries) && pendingQueries < alpha; i++ {
@@ -198,7 +205,19 @@ func (tab *Table) Lookup(targetID NodeID) []*Node {
 				asked[n.ID] = true
 				pendingQueries++
 				go func() {
-					r, _ := tab.net.findnode(n.ID, n.addr(), targetID)
+					// Find potential neighbors to bond with
+					r, err := tab.net.findnode(n.ID, n.addr(), targetID)
+					if err != nil {
+						// Bump the failure counter to detect and evacuate non-bonded entries
+						fails := tab.db.findFails(n.ID) + 1
+						tab.db.updateFindFails(n.ID, fails)
+						glog.V(logger.Detail).Infof("Bumping failures for %x: %d", n.ID[:8], fails)
+
+						if fails >= maxFindnodeFailures {
+							glog.V(logger.Detail).Infof("Evacuating node %x: %d findnode failures", n.ID[:8], fails)
+							tab.del(n)
+						}
+					}
 					reply <- tab.bondall(r)
 				}()
 			}
@@ -219,8 +238,23 @@ func (tab *Table) Lookup(targetID NodeID) []*Node {
 	return result.entries
 }
 
-// refresh performs a lookup for a random target to keep buckets full.
+// refresh performs a lookup for a random target to keep buckets full, or seeds
+// the table if it is empty (initial bootstrap or discarded faulty peers).
 func (tab *Table) refresh() {
+	seed := true
+
+	// If the discovery table is empty, seed with previously known nodes
+	tab.mutex.Lock()
+	for _, bucket := range tab.buckets {
+		if len(bucket.entries) > 0 {
+			seed = false
+			break
+		}
+	}
+	tab.mutex.Unlock()
+
+	// If the table is not empty, try to refresh using the live entries
+	if !seed {
 		// The Kademlia paper specifies that the bucket refresh should
 		// perform a refresh in the least recently used bucket. We cannot
 		// adhere to this because the findnode target is a 512bit value
@@ -230,19 +264,27 @@ func (tab *Table) refresh() {
 		// We perform a lookup with a random target instead.
 		var target NodeID
 		rand.Read(target[:])
+
 		result := tab.Lookup(target)
 		if len(result) == 0 {
+			// Lookup failed, seed after all
+			seed = true
+		}
+	}
+
+	if seed {
 		// Pick a batch of previously know seeds to lookup with
 		seeds := tab.db.querySeeds(10)
 		for _, seed := range seeds {
 			glog.V(logger.Debug).Infoln("Seeding network with", seed)
 		}
-		// Bootstrap the table with a self lookup
+		nodes := append(tab.nursery, seeds...)
-		all := tab.bondall(append(tab.nursery, seeds...))
+
-		tab.mutex.Lock()
+		// Bond with all the seed nodes (will pingpong only if failed recently)
-		tab.add(all)
+		bonded := tab.bondall(nodes)
-		tab.mutex.Unlock()
+		if len(bonded) > 0 {
 			tab.Lookup(tab.self.ID)
+		}
 		// TODO: the Kademlia paper says that we're supposed to perform
 		// random lookups in all buckets further away than our closest neighbor.
 	}
@@ -305,8 +347,16 @@ func (tab *Table) bondall(nodes []*Node) (result []*Node) {
 // If pinged is true, the remote node has just pinged us and one half
 // of the process can be skipped.
 func (tab *Table) bond(pinged bool, id NodeID, addr *net.UDPAddr, tcpPort uint16) (*Node, error) {
-	var n *Node
+	// Retrieve a previously known node and any recent findnode failures
-	if n = tab.db.node(id); n == nil {
+	node, fails := tab.db.node(id), 0
+	if node != nil {
+		fails = tab.db.findFails(id)
+	}
+	// If the node is unknown (non-bonded) or failed (remotely unknown), bond from scratch
+	var result error
+	if node == nil || fails > 0 {
+		glog.V(logger.Detail).Infof("Bonding %x: known=%v, fails=%v", id[:8], node != nil, fails)
+
 		tab.bondmu.Lock()
 		w := tab.bonding[id]
 		if w != nil {
@@ -325,18 +375,24 @@ func (tab *Table) bond(pinged bool, id NodeID, addr *net.UDPAddr, tcpPort uint16
 			delete(tab.bonding, id)
 			tab.bondmu.Unlock()
 		}
-		n = w.n
+		// Retrieve the bonding results
-		if w.err != nil {
+		result = w.err
-			return nil, w.err
+		if result == nil {
+			node = w.n
 		}
 	}
+	// Even if bonding temporarily failed, give the node a chance
+	if node != nil {
 		tab.mutex.Lock()
 		defer tab.mutex.Unlock()
-	b := tab.buckets[logdist(tab.self.sha, n.sha)]
+
-	if !b.bump(n) {
+		b := tab.buckets[logdist(tab.self.sha, node.sha)]
-		tab.pingreplace(n, b)
+		if !b.bump(node) {
+			tab.pingreplace(node, b)
 		}
-	return n, nil
+		tab.db.updateFindFails(id, 0)
+	}
+	return node, result
 }
 
 func (tab *Table) pingpong(w *bondproc, pinged bool, id NodeID, addr *net.UDPAddr, tcpPort uint16) {
@@ -414,6 +470,21 @@ outer:
 	}
 }
 
+// del removes an entry from the node table (used to evacuate failed/non-bonded
+// discovery peers).
+func (tab *Table) del(node *Node) {
+	tab.mutex.Lock()
+	defer tab.mutex.Unlock()
+
+	bucket := tab.buckets[logdist(tab.self.sha, node.sha)]
+	for i := range bucket.entries {
+		if bucket.entries[i].ID == node.ID {
+			bucket.entries = append(bucket.entries[:i], bucket.entries[i+1:]...)
+			return
+		}
+	}
+}
+
 func (b *bucket) bump(n *Node) bool {
 	for i := range b.entries {
 		if b.entries[i].ID == n.ID {

p2p/nat/nat_test.go

@@ -30,7 +30,7 @@ func TestAutoDiscRace(t *testing.T) {
 	}
 
 	// Check that they all return the correct result within the deadline.
-	deadline := time.After(550 * time.Millisecond)
+	deadline := time.After(2 * time.Second)
 	for i := 0; i < cap(results); i++ {
 		select {
 		case <-deadline:

p2p/server.go

@@ -55,6 +55,10 @@ type Server struct {
 	// Zero defaults to preset values.
 	MaxPendingPeers int
 
+	// Discovery specifies whether the peer discovery mechanism should be started
+	// or not. Disabling is usually useful for protocol debugging (manual topology).
+	Discovery bool
+
 	// Name sets the node name of this server.
 	// Use common.MakeName to create a name that follows existing conventions.
 	Name string
@@ -237,9 +241,26 @@ func (srv *Server) AddPeer(node *discover.Node) {
 func (srv *Server) Self() *discover.Node {
 	srv.lock.Lock()
 	defer srv.lock.Unlock()
+
+	// If the server's not running, return an empty node
 	if !srv.running {
 		return &discover.Node{IP: net.ParseIP("0.0.0.0")}
 	}
+	// If the node is running but discovery is off, manually assemble the node infos
+	if srv.ntab == nil {
+		// Inbound connections disabled, use zero address
+		if srv.listener == nil {
+			return &discover.Node{IP: net.ParseIP("0.0.0.0"), ID: discover.PubkeyID(&srv.PrivateKey.PublicKey)}
+		}
+		// Otherwise inject the listener address too
+		addr := srv.listener.Addr().(*net.TCPAddr)
+		return &discover.Node{
+			ID:  discover.PubkeyID(&srv.PrivateKey.PublicKey),
+			IP:  addr.IP,
+			TCP: uint16(addr.Port),
+		}
+	}
+	// Otherwise return the live node infos
 	return srv.ntab.Self()
 }
 
@@ -275,9 +296,6 @@ func (srv *Server) Start() (err error) {
 	if srv.PrivateKey == nil {
 		return fmt.Errorf("Server.PrivateKey must be set to a non-nil key")
 	}
-	if srv.MaxPeers <= 0 {
-		return fmt.Errorf("Server.MaxPeers must be > 0")
-	}
 	if srv.newTransport == nil {
 		srv.newTransport = newRLPX
 	}
@@ -293,15 +311,22 @@ func (srv *Server) Start() (err error) {
 	srv.peerOpDone = make(chan struct{})
 
 	// node table
+	if srv.Discovery {
 		ntab, err := discover.ListenUDP(srv.PrivateKey, srv.ListenAddr, srv.NAT, srv.NodeDatabase)
 		if err != nil {
 			return err
 		}
 		srv.ntab = ntab
-	dialer := newDialState(srv.StaticNodes, srv.ntab, srv.MaxPeers/2)
+	}
+
+	dynPeers := srv.MaxPeers / 2
+	if !srv.Discovery {
+		dynPeers = 0
+	}
+	dialer := newDialState(srv.StaticNodes, srv.ntab, dynPeers)
 
 	// handshake
-	srv.ourHandshake = &protoHandshake{Version: baseProtocolVersion, Name: srv.Name, ID: ntab.Self().ID}
+	srv.ourHandshake = &protoHandshake{Version: baseProtocolVersion, Name: srv.Name, ID: discover.PubkeyID(&srv.PrivateKey.PublicKey)}
 	for _, p := range srv.Protocols {
 		srv.ourHandshake.Caps = append(srv.ourHandshake.Caps, p.cap())
 	}
@@ -457,7 +482,9 @@ running:
 	}
 
 	// Terminate discovery. If there is a running lookup it will terminate soon.
+	if srv.ntab != nil {
 		srv.ntab.Close()
+	}
 	// Disconnect all peers.
 	for _, p := range peers {
 		p.Disconnect(DiscQuitting)
@@ -489,7 +516,7 @@ func (srv *Server) encHandshakeChecks(peers map[discover.NodeID]*Peer, c *conn)
 		return DiscTooManyPeers
 	case peers[c.id] != nil:
 		return DiscAlreadyConnected
-	case c.id == srv.ntab.Self().ID:
+	case c.id == srv.Self().ID:
 		return DiscSelf
 	default:
 		return nil

rpc/jeth.go

@@ -3,18 +3,18 @@ package rpc
 import (
 	"encoding/json"
 	"fmt"
+
 	"github.com/ethereum/go-ethereum/jsre"
 	"github.com/robertkrimen/otto"
 )
 
 type Jeth struct {
 	ethApi *EthereumApi
-	toVal  func(interface{}) otto.Value
 	re     *jsre.JSRE
 }
 
-func NewJeth(ethApi *EthereumApi, toVal func(interface{}) otto.Value, re *jsre.JSRE) *Jeth {
+func NewJeth(ethApi *EthereumApi, re *jsre.JSRE) *Jeth {
-	return &Jeth{ethApi, toVal, re}
+	return &Jeth{ethApi, re}
 }
 
 func (self *Jeth) err(call otto.FunctionCall, code int, msg string, id interface{}) (response otto.Value) {