logger, pow/dagger, pow/ezp: delete dead code

20 files changed, 3 insertions, 1440 deletions

diff --git a/cmd/geth/main.go b/cmd/geth/main.go
index 332e1ae8d..766e49f49 100644
--- a/cmd/geth/main.go
+++ b/cmd/geth/main.go
@@ -168,7 +168,6 @@ func init() {
 	}
 
 	app.After = func(ctx *cli.Context) error {
-		logger.Flush()
 		debug.Exit()
 		console.Stdin.Close() // Resets terminal mode.
 		return nil
diff --git a/cmd/utils/cmd.go b/cmd/utils/cmd.go
index 287efc9c8..8666f3775 100644
--- a/cmd/utils/cmd.go
+++ b/cmd/utils/cmd.go
@@ -67,7 +67,6 @@ func Fatalf(format string, args ...interface{}) {
 		}
 	}
 	fmt.Fprintf(w, "Fatal: "+format+"\n", args...)
-	logger.Flush()
 	os.Exit(1)
 }
 
diff --git a/core/block_validator_test.go b/core/block_validator_test.go
index 054686612..413c3cc8e 100644
--- a/core/block_validator_test.go
+++ b/core/block_validator_test.go
@@ -27,7 +27,6 @@ import (
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/params"
-	"github.com/ethereum/go-ethereum/pow/ezp"
 )
 
 func testChainConfig() *params.ChainConfig {
@@ -48,20 +47,19 @@ func proc() (Validator, *BlockChain) {
 }
 
 func TestNumber(t *testing.T) {
-	pow := ezp.New()
 	_, chain := proc()
 
 	statedb, _ := state.New(chain.Genesis().Root(), chain.chainDb)
 	cfg := testChainConfig()
 	header := makeHeader(cfg, chain.Genesis(), statedb)
 	header.Number = big.NewInt(3)
-	err := ValidateHeader(cfg, pow, header, chain.Genesis().Header(), false, false)
+	err := ValidateHeader(cfg, FakePow{}, header, chain.Genesis().Header(), false, false)
 	if err != BlockNumberErr {
 		t.Errorf("expected block number error, got %q", err)
 	}
 
 	header = makeHeader(cfg, chain.Genesis(), statedb)
-	err = ValidateHeader(cfg, pow, header, chain.Genesis().Header(), false, false)
+	err = ValidateHeader(cfg, FakePow{}, header, chain.Genesis().Header(), false, false)
 	if err == BlockNumberErr {
 		t.Errorf("didn't expect block number error")
 	}
diff --git a/core/blockchain.go b/core/blockchain.go
index 8c2be7231..c3530b93c 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -46,9 +46,6 @@ import (
 )
 
 var (
-	chainlogger = logger.NewLogger("CHAIN")
-	jsonlogger  = logger.NewJsonLogger()
-
 	blockInsertTimer = metrics.NewTimer("chain/inserts")
 
 	ErrNoGenesis = errors.New("Genesis not found in chain")
diff --git a/errs/errors.go b/errs/errors.go
index 675649efa..daa814db7 100644
--- a/errs/errors.go
+++ b/errs/errors.go
@@ -19,7 +19,6 @@ package errs
 import (
 	"fmt"
 
-	"github.com/ethereum/go-ethereum/logger"
 	"github.com/ethereum/go-ethereum/logger/glog"
 )
 
@@ -32,15 +31,10 @@ Fields:
 
  Package:
   name of the package/component
-
- Level:
-  a function mapping error code to logger.LogLevel (severity)
-  if not given, errors default to logger.InfoLevel
 */
 type Errors struct {
 	Errors  map[int]string
 	Package string
-	Level   func(code int) logger.LogLevel
 }
 
 /*
@@ -58,7 +52,6 @@ type Error struct {
 	Code    int
 	Name    string
 	Package string
-	level   logger.LogLevel
 	message string
 	format  string
 	params  []interface{}
@@ -69,15 +62,10 @@ func (self *Errors) New(code int, format string, params ...interface{}) *Error {
 	if !ok {
 		panic("invalid error code")
 	}
-	level := logger.InfoLevel
-	if self.Level != nil {
-		level = self.Level(code)
-	}
 	return &Error{
 		Code:    code,
 		Name:    name,
 		Package: self.Package,
-		level:   level,
 		format:  format,
 		params:  params,
 	}
@@ -98,13 +86,3 @@ func (self Error) Log(v glog.Verbose) {
 		v.Infoln(self)
 	}
 }
-
-/*
-err.Fatal() is true if err's severity level is 0 or 1 (logger.ErrorLevel or logger.Silence)
-*/
-func (self *Error) Fatal() (fatal bool) {
-	if self.level < logger.WarnLevel {
-		fatal = true
-	}
-	return
-}
diff --git a/errs/errors_test.go b/errs/errors_test.go
index d6d14b45e..5a2ffbec3 100644
--- a/errs/errors_test.go
+++ b/errs/errors_test.go
@@ -19,8 +19,6 @@ package errs
 import (
 	"fmt"
 	"testing"
-
-	"github.com/ethereum/go-ethereum/logger"
 )
 
 func testErrors() *Errors {
@@ -30,14 +28,6 @@ func testErrors() *Errors {
 			0: "zero",
 			1: "one",
 		},
-		Level: func(i int) (l logger.LogLevel) {
-			if i == 0 {
-				l = logger.ErrorLevel
-			} else {
-				l = logger.WarnLevel
-			}
-			return
-		},
 	}
 }
 
@@ -49,14 +39,3 @@ func TestErrorMessage(t *testing.T) {
 		t.Errorf("error message incorrect. expected %v, got %v", exp, message)
 	}
 }
-
-func TestErrorSeverity(t *testing.T) {
-	err0 := testErrors().New(0, "zero detail")
-	if !err0.Fatal() {
-		t.Errorf("error should be fatal")
-	}
-	err1 := testErrors().New(1, "one detail")
-	if err1.Fatal() {
-		t.Errorf("error should not be fatal")
-	}
-}
diff --git a/logger/example_test.go b/logger/example_test.go
deleted file mode 100644
index ce5f9da67..000000000
--- a/logger/example_test.go
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright 2014 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package logger
-
-import "os"
-
-func ExampleLogger() {
-	logger := NewLogger("TAG")
-	logger.Infoln("so awesome")            // prints [TAG] so awesome
-	logger.Infof("this %q is raw", "coin") // prints [TAG] this "coin" is raw
-}
-
-func ExampleLogSystem() {
-	filename := "test.log"
-	file, _ := os.OpenFile(filename, os.O_RDWR|os.O_CREATE, os.ModePerm)
-	fileLog := NewStdLogSystem(file, 0, WarnLevel)
-	AddLogSystem(fileLog)
-
-	stdoutLog := NewStdLogSystem(os.Stdout, 0, WarnLevel)
-	AddLogSystem(stdoutLog)
-
-	NewLogger("TAG").Warnln("reactor meltdown") // writes to both logs
-}
diff --git a/logger/log.go b/logger/log.go
deleted file mode 100644
index 38a6ce139..000000000
--- a/logger/log.go
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package logger
-
-import (
-	"fmt"
-	"io"
-	"log"
-	"os"
-
-	"github.com/ethereum/go-ethereum/common"
-)
-
-func openLogFile(datadir string, filename string) *os.File {
-	path := common.AbsolutePath(datadir, filename)
-	file, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
-	if err != nil {
-		panic(fmt.Sprintf("error opening log file '%s': %v", filename, err))
-	}
-	return file
-}
-
-func New(datadir string, logFile string, logLevel int) LogSystem {
-	var writer io.Writer
-	if logFile == "" {
-		writer = os.Stdout
-	} else {
-		writer = openLogFile(datadir, logFile)
-	}
-
-	var sys LogSystem
-	sys = NewStdLogSystem(writer, log.LstdFlags, LogLevel(logLevel))
-	AddLogSystem(sys)
-
-	return sys
-}
-
-func NewJSONsystem(datadir string, logFile string) LogSystem {
-	var writer io.Writer
-	if logFile == "-" {
-		writer = os.Stdout
-	} else {
-		writer = openLogFile(datadir, logFile)
-	}
-
-	var sys LogSystem
-	sys = NewJsonLogSystem(writer)
-	AddLogSystem(sys)
-
-	return sys
-}
diff --git a/logger/loggers.go b/logger/loggers.go
deleted file mode 100644
index e63355d0b..000000000
--- a/logger/loggers.go
+++ /dev/null
@@ -1,149 +0,0 @@
-// Copyright 2014 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-/*
-Package logger implements a multi-output leveled logger.
-
-Other packages use tagged logger to send log messages to shared
-(process-wide) logging engine. The shared logging engine dispatches to
-multiple log systems. The log level can be set separately per log
-system.
-
-Logging is asynchronous and does not block the caller. Message
-formatting is performed by the caller goroutine to avoid incorrect
-logging of mutable state.
-*/
-package logger
-
-import (
-	"encoding/json"
-	"fmt"
-	"os"
-)
-
-type LogLevel uint32
-
-const (
-	// Standard log levels
-	Silence LogLevel = iota
-	ErrorLevel
-	WarnLevel
-	InfoLevel
-	DebugLevel
-	DebugDetailLevel
-)
-
-// A Logger prints messages prefixed by a given tag. It provides named
-// Printf and Println style methods for all loglevels. Each ethereum
-// component should have its own logger with a unique prefix.
-type Logger struct {
-	tag string
-}
-
-func NewLogger(tag string) *Logger {
-	return &Logger{"[" + tag + "] "}
-}
-
-func (logger *Logger) Sendln(level LogLevel, v ...interface{}) {
-	logMessageC <- stdMsg{level, logger.tag + fmt.Sprintln(v...)}
-}
-
-func (logger *Logger) Sendf(level LogLevel, format string, v ...interface{}) {
-	logMessageC <- stdMsg{level, logger.tag + fmt.Sprintf(format, v...)}
-}
-
-// Errorln writes a message with ErrorLevel.
-func (logger *Logger) Errorln(v ...interface{}) {
-	logger.Sendln(ErrorLevel, v...)
-}
-
-// Warnln writes a message with WarnLevel.
-func (logger *Logger) Warnln(v ...interface{}) {
-	logger.Sendln(WarnLevel, v...)
-}
-
-// Infoln writes a message with InfoLevel.
-func (logger *Logger) Infoln(v ...interface{}) {
-	logger.Sendln(InfoLevel, v...)
-}
-
-// Debugln writes a message with DebugLevel.
-func (logger *Logger) Debugln(v ...interface{}) {
-	logger.Sendln(DebugLevel, v...)
-}
-
-// DebugDetailln writes a message with DebugDetailLevel.
-func (logger *Logger) DebugDetailln(v ...interface{}) {
-	logger.Sendln(DebugDetailLevel, v...)
-}
-
-// Errorf writes a message with ErrorLevel.
-func (logger *Logger) Errorf(format string, v ...interface{}) {
-	logger.Sendf(ErrorLevel, format, v...)
-}
-
-// Warnf writes a message with WarnLevel.
-func (logger *Logger) Warnf(format string, v ...interface{}) {
-	logger.Sendf(WarnLevel, format, v...)
-}
-
-// Infof writes a message with InfoLevel.
-func (logger *Logger) Infof(format string, v ...interface{}) {
-	logger.Sendf(InfoLevel, format, v...)
-}
-
-// Debugf writes a message with DebugLevel.
-func (logger *Logger) Debugf(format string, v ...interface{}) {
-	logger.Sendf(DebugLevel, format, v...)
-}
-
-// DebugDetailf writes a message with DebugDetailLevel.
-func (logger *Logger) DebugDetailf(format string, v ...interface{}) {
-	logger.Sendf(DebugDetailLevel, format, v...)
-}
-
-// Fatalln writes a message with ErrorLevel and exits the program.
-func (logger *Logger) Fatalln(v ...interface{}) {
-	logger.Sendln(ErrorLevel, v...)
-	Flush()
-	os.Exit(0)
-}
-
-// Fatalf writes a message with ErrorLevel and exits the program.
-func (logger *Logger) Fatalf(format string, v ...interface{}) {
-	logger.Sendf(ErrorLevel, format, v...)
-	Flush()
-	os.Exit(0)
-}
-
-type JsonLogger struct {
-	Coinbase string
-}
-
-func NewJsonLogger() *JsonLogger {
-	return &JsonLogger{}
-}
-
-func (logger *JsonLogger) LogJson(v JsonLog) {
-	msgname := v.EventName()
-	obj := map[string]interface{}{
-		msgname: v,
-	}
-
-	jsontxt, _ := json.Marshal(obj)
-	logMessageC <- (jsonMsg(jsontxt))
-
-}
diff --git a/logger/loggers_test.go b/logger/loggers_test.go
deleted file mode 100644
index 85564698b..000000000
--- a/logger/loggers_test.go
+++ /dev/null
@@ -1,192 +0,0 @@
-// Copyright 2014 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package logger
-
-import (
-	"io/ioutil"
-	"math/rand"
-	"os"
-	"sync"
-	"testing"
-	"time"
-)
-
-type TestLogSystem struct {
-	mutex  sync.Mutex
-	output string
-	level  LogLevel
-}
-
-func (ls *TestLogSystem) LogPrint(msg LogMsg) {
-	ls.mutex.Lock()
-	if ls.level >= msg.Level() {
-		ls.output += msg.String()
-	}
-	ls.mutex.Unlock()
-}
-
-func (ls *TestLogSystem) SetLogLevel(i LogLevel) {
-	ls.mutex.Lock()
-	ls.level = i
-	ls.mutex.Unlock()
-}
-
-func (ls *TestLogSystem) GetLogLevel() LogLevel {
-	ls.mutex.Lock()
-	defer ls.mutex.Unlock()
-	return ls.level
-}
-
-func (ls *TestLogSystem) CheckOutput(t *testing.T, expected string) {
-	ls.mutex.Lock()
-	output := ls.output
-	ls.mutex.Unlock()
-	if output != expected {
-		t.Errorf("log output mismatch:\n   got: %q\n  want: %q\n", output, expected)
-	}
-}
-
-type blockedLogSystem struct {
-	LogSystem
-	unblock chan struct{}
-}
-
-func (ls blockedLogSystem) LogPrint(msg LogMsg) {
-	<-ls.unblock
-	ls.LogSystem.LogPrint(msg)
-}
-
-func TestLoggerFlush(t *testing.T) {
-	Reset()
-
-	logger := NewLogger("TEST")
-	ls := blockedLogSystem{&TestLogSystem{level: WarnLevel}, make(chan struct{})}
-	AddLogSystem(ls)
-	for i := 0; i < 5; i++ {
-		// these writes shouldn't hang even though ls is blocked
-		logger.Errorf(".")
-	}
-
-	beforeFlush := time.Now()
-	time.AfterFunc(80*time.Millisecond, func() { close(ls.unblock) })
-	Flush() // this should hang for approx. 80ms
-	if blockd := time.Now().Sub(beforeFlush); blockd < 80*time.Millisecond {
-		t.Errorf("Flush didn't block long enough, blocked for %v, should've been >= 80ms", blockd)
-	}
-
-	ls.LogSystem.(*TestLogSystem).CheckOutput(t, "[TEST] .[TEST] .[TEST] .[TEST] .[TEST] .")
-}
-
-func TestLoggerPrintln(t *testing.T) {
-	Reset()
-
-	logger := NewLogger("TEST")
-	testLogSystem := &TestLogSystem{level: WarnLevel}
-	AddLogSystem(testLogSystem)
-	logger.Errorln("error")
-	logger.Warnln("warn")
-	logger.Infoln("info")
-	logger.Debugln("debug")
-	Flush()
-
-	testLogSystem.CheckOutput(t, "[TEST] error\n[TEST] warn\n")
-}
-
-func TestLoggerPrintf(t *testing.T) {
-	Reset()
-
-	logger := NewLogger("TEST")
-	testLogSystem := &TestLogSystem{level: WarnLevel}
-	AddLogSystem(testLogSystem)
-	logger.Errorf("error to %v\n", []int{1, 2, 3})
-	logger.Warnf("warn %%d %d", 5)
-	logger.Infof("info")
-	logger.Debugf("debug")
-	Flush()
-	testLogSystem.CheckOutput(t, "[TEST] error to [1 2 3]\n[TEST] warn %d 5")
-}
-
-func TestMultipleLogSystems(t *testing.T) {
-	Reset()
-
-	logger := NewLogger("TEST")
-	testLogSystem0 := &TestLogSystem{level: ErrorLevel}
-	testLogSystem1 := &TestLogSystem{level: WarnLevel}
-	AddLogSystem(testLogSystem0)
-	AddLogSystem(testLogSystem1)
-	logger.Errorln("error")
-	logger.Warnln("warn")
-	Flush()
-
-	testLogSystem0.CheckOutput(t, "[TEST] error\n")
-	testLogSystem1.CheckOutput(t, "[TEST] error\n[TEST] warn\n")
-}
-
-func TestFileLogSystem(t *testing.T) {
-	Reset()
-
-	logger := NewLogger("TEST")
-	filename := "test.log"
-	file, _ := os.OpenFile(filename, os.O_RDWR|os.O_CREATE, os.ModePerm)
-	testLogSystem := NewStdLogSystem(file, 0, WarnLevel)
-	AddLogSystem(testLogSystem)
-	logger.Errorf("error to %s\n", filename)
-	logger.Warnln("warn")
-	Flush()
-	contents, _ := ioutil.ReadFile(filename)
-	output := string(contents)
-	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 ", output)
-	} else {
-		os.Remove(filename)
-	}
-}
-
-func TestNoLogSystem(t *testing.T) {
-	Reset()
-
-	logger := NewLogger("TEST")
-	logger.Warnln("warn")
-	Flush()
-}
-
-func TestConcurrentAddSystem(t *testing.T) {
-	rand.Seed(time.Now().Unix())
-	Reset()
-
-	logger := NewLogger("TEST")
-	stop := make(chan struct{})
-	writer := func() {
-		select {
-		case <-stop:
-			return
-		default:
-			logger.Infoln("foo")
-			Flush()
-		}
-	}
-
-	go writer()
-	go writer()
-
-	stopTime := time.Now().Add(100 * time.Millisecond)
-	for time.Now().Before(stopTime) {
-		time.Sleep(time.Duration(rand.Intn(20)) * time.Millisecond)
-		AddLogSystem(NewStdLogSystem(ioutil.Discard, 0, InfoLevel))
-	}
-	close(stop)
-}
diff --git a/logger/logsystem.go b/logger/logsystem.go
deleted file mode 100644
index 24f4351d4..000000000
--- a/logger/logsystem.go
+++ /dev/null
@@ -1,76 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package logger
-
-import (
-	"io"
-	"log"
-	"sync/atomic"
-)
-
-// LogSystem is implemented by log output devices.
-// All methods can be called concurrently from multiple goroutines.
-type LogSystem interface {
-	LogPrint(LogMsg)
-}
-
-// NewStdLogSystem creates a LogSystem that prints to the given writer.
-// The flag values are defined package log.
-func NewStdLogSystem(writer io.Writer, flags int, level LogLevel) *StdLogSystem {
-	logger := log.New(writer, "", flags)
-	return &StdLogSystem{logger, uint32(level)}
-}
-
-type StdLogSystem struct {
-	logger *log.Logger
-	level  uint32
-}
-
-func (t *StdLogSystem) LogPrint(msg LogMsg) {
-	stdmsg, ok := msg.(stdMsg)
-	if ok {
-		if t.GetLogLevel() >= stdmsg.Level() {
-			t.logger.Print(stdmsg.String())
-		}
-	}
-}
-
-func (t *StdLogSystem) SetLogLevel(i LogLevel) {
-	atomic.StoreUint32(&t.level, uint32(i))
-}
-
-func (t *StdLogSystem) GetLogLevel() LogLevel {
-	return LogLevel(atomic.LoadUint32(&t.level))
-}
-
-// NewJSONLogSystem creates a LogSystem that prints to the given writer without
-// adding extra information irrespective of loglevel only if message is JSON type
-func NewJsonLogSystem(writer io.Writer) LogSystem {
-	logger := log.New(writer, "", 0)
-	return &jsonLogSystem{logger}
-}
-
-type jsonLogSystem struct {
-	logger *log.Logger
-}
-
-func (t *jsonLogSystem) LogPrint(msg LogMsg) {
-	jsonmsg, ok := msg.(jsonMsg)
-	if ok {
-		t.logger.Print(jsonmsg.String())
-	}
-}
diff --git a/logger/sys.go b/logger/sys.go
deleted file mode 100644
index 18d4ea641..000000000
--- a/logger/sys.go
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package logger
-
-import (
-	"fmt"
-	"sync"
-)
-
-type stdMsg struct {
-	level LogLevel
-	msg   string
-}
-
-type jsonMsg []byte
-
-func (m jsonMsg) Level() LogLevel {
-	return 0
-}
-
-func (m jsonMsg) String() string {
-	return string(m)
-}
-
-type LogMsg interface {
-	Level() LogLevel
-	fmt.Stringer
-}
-
-func (m stdMsg) Level() LogLevel {
-	return m.level
-}
-
-func (m stdMsg) String() string {
-	return m.msg
-}
-
-var (
-	logMessageC = make(chan LogMsg)
-	addSystemC  = make(chan LogSystem)
-	flushC      = make(chan chan struct{})
-	resetC      = make(chan chan struct{})
-)
-
-func init() {
-	go dispatchLoop()
-}
-
-// each system can buffer this many messages before
-// blocking incoming log messages.
-const sysBufferSize = 500
-
-func dispatchLoop() {
-	var (
-		systems  []LogSystem
-		systemIn []chan LogMsg
-		systemWG sync.WaitGroup
-	)
-	bootSystem := func(sys LogSystem) {
-		in := make(chan LogMsg, sysBufferSize)
-		systemIn = append(systemIn, in)
-		systemWG.Add(1)
-		go sysLoop(sys, in, &systemWG)
-	}
-
-	for {
-		select {
-		case msg := <-logMessageC:
-			for _, c := range systemIn {
-				c <- msg
-			}
-
-		case sys := <-addSystemC:
-			systems = append(systems, sys)
-			bootSystem(sys)
-
-		case waiter := <-resetC:
-			// reset means terminate all systems
-			for _, c := range systemIn {
-				close(c)
-			}
-			systems = nil
-			systemIn = nil
-			systemWG.Wait()
-			close(waiter)
-
-		case waiter := <-flushC:
-			// flush means reboot all systems
-			for _, c := range systemIn {
-				close(c)
-			}
-			systemIn = nil
-			systemWG.Wait()
-			for _, sys := range systems {
-				bootSystem(sys)
-			}
-			close(waiter)
-		}
-	}
-}
-
-func sysLoop(sys LogSystem, in <-chan LogMsg, wg *sync.WaitGroup) {
-	for msg := range in {
-		sys.LogPrint(msg)
-	}
-	wg.Done()
-}
-
-// Reset removes all active log systems.
-// It blocks until all current messages have been delivered.
-func Reset() {
-	waiter := make(chan struct{})
-	resetC <- waiter
-	<-waiter
-}
-
-// Flush waits until all current log messages have been dispatched to
-// the active log systems.
-func Flush() {
-	waiter := make(chan struct{})
-	flushC <- waiter
-	<-waiter
-}
-
-// AddLogSystem starts printing messages to the given LogSystem.
-func AddLogSystem(sys LogSystem) {
-	addSystemC <- sys
-}
diff --git a/logger/types.go b/logger/types.go
deleted file mode 100644
index ee7e845de..000000000
--- a/logger/types.go
+++ /dev/null
@@ -1,381 +0,0 @@
-// Copyright 2015 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package logger
-
-import (
-	"math/big"
-	"time"
-)
-
-type utctime8601 struct{}
-
-func (utctime8601) MarshalJSON() ([]byte, error) {
-	timestr := time.Now().UTC().Format(time.RFC3339Nano)
-	// Bounds check
-	if len(timestr) > 26 {
-		timestr = timestr[:26]
-	}
-	return []byte(`"` + timestr + `Z"`), nil
-}
-
-type JsonLog interface {
-	EventName() string
-}
-
-type LogEvent struct {
-	// Guid string      `json:"guid"`
-	Ts utctime8601 `json:"ts"`
-	// Level string      `json:"level"`
-}
-
-type LogStarting struct {
-	ClientString    string `json:"client_impl"`
-	ProtocolVersion int    `json:"eth_version"`
-	LogEvent
-}
-
-func (l *LogStarting) EventName() string {
-	return "starting"
-}
-
-type P2PConnected struct {
-	RemoteId            string `json:"remote_id"`
-	RemoteAddress       string `json:"remote_addr"`
-	RemoteVersionString string `json:"remote_version_string"`
-	NumConnections      int    `json:"num_connections"`
-	LogEvent
-}
-
-func (l *P2PConnected) EventName() string {
-	return "p2p.connected"
-}
-
-type P2PDisconnected struct {
-	NumConnections int    `json:"num_connections"`
-	RemoteId       string `json:"remote_id"`
-	LogEvent
-}
-
-func (l *P2PDisconnected) EventName() string {
-	return "p2p.disconnected"
-}
-
-type EthMinerNewBlock struct {
-	BlockHash     string   `json:"block_hash"`
-	BlockNumber   *big.Int `json:"block_number"`
-	ChainHeadHash string   `json:"chain_head_hash"`
-	BlockPrevHash string   `json:"block_prev_hash"`
-	LogEvent
-}
-
-func (l *EthMinerNewBlock) EventName() string {
-	return "eth.miner.new_block"
-}
-
-type EthChainReceivedNewBlock struct {
-	BlockHash     string   `json:"block_hash"`
-	BlockNumber   *big.Int `json:"block_number"`
-	ChainHeadHash string   `json:"chain_head_hash"`
-	BlockPrevHash string   `json:"block_prev_hash"`
-	RemoteId      string   `json:"remote_id"`
-	LogEvent
-}
-
-func (l *EthChainReceivedNewBlock) EventName() string {
-	return "eth.chain.received.new_block"
-}
-
-type EthChainNewHead struct {
-	BlockHash     string   `json:"block_hash"`
-	BlockNumber   *big.Int `json:"block_number"`
-	ChainHeadHash string   `json:"chain_head_hash"`
-	BlockPrevHash string   `json:"block_prev_hash"`
-	LogEvent
-}
-
-func (l *EthChainNewHead) EventName() string {
-	return "eth.chain.new_head"
-}
-
-type EthTxReceived struct {
-	TxHash   string `json:"tx_hash"`
-	RemoteId string `json:"remote_id"`
-	LogEvent
-}
-
-func (l *EthTxReceived) EventName() string {
-	return "eth.tx.received"
-}
-
-//
-//
-// The types below are legacy and need to be converted to new format or deleted
-//
-//
-
-// type P2PConnecting struct {
-// 	RemoteId       string `json:"remote_id"`
-// 	RemoteEndpoint string `json:"remote_endpoint"`
-// 	NumConnections int    `json:"num_connections"`
-// 	LogEvent
-// }
-
-// func (l *P2PConnecting) EventName() string {
-// 	return "p2p.connecting"
-// }
-
-// type P2PHandshaked struct {
-// 	RemoteCapabilities []string `json:"remote_capabilities"`
-// 	RemoteId           string   `json:"remote_id"`
-// 	NumConnections     int      `json:"num_connections"`
-// 	LogEvent
-// }
-
-// func (l *P2PHandshaked) EventName() string {
-// 	return "p2p.handshaked"
-// }
-
-// type P2PDisconnecting struct {
-// 	Reason         string `json:"reason"`
-// 	RemoteId       string `json:"remote_id"`
-// 	NumConnections int    `json:"num_connections"`
-// 	LogEvent
-// }
-
-// func (l *P2PDisconnecting) EventName() string {
-// 	return "p2p.disconnecting"
-// }
-
-// type P2PDisconnectingBadHandshake struct {
-// 	Reason         string `json:"reason"`
-// 	RemoteId       string `json:"remote_id"`
-// 	NumConnections int    `json:"num_connections"`
-// 	LogEvent
-// }
-
-// func (l *P2PDisconnectingBadHandshake) EventName() string {
-// 	return "p2p.disconnecting.bad_handshake"
-// }
-
-// type P2PDisconnectingBadProtocol struct {
-// 	Reason         string `json:"reason"`
-// 	RemoteId       string `json:"remote_id"`
-// 	NumConnections int    `json:"num_connections"`
-// 	LogEvent
-// }
-
-// func (l *P2PDisconnectingBadProtocol) EventName() string {
-// 	return "p2p.disconnecting.bad_protocol"
-// }
-
-// type P2PDisconnectingReputation struct {
-// 	Reason         string `json:"reason"`
-// 	RemoteId       string `json:"remote_id"`
-// 	NumConnections int    `json:"num_connections"`
-// 	LogEvent
-// }
-
-// func (l *P2PDisconnectingReputation) EventName() string {
-// 	return "p2p.disconnecting.reputation"
-// }
-
-// type P2PDisconnectingDHT struct {
-// 	Reason         string `json:"reason"`
-// 	RemoteId       string `json:"remote_id"`
-// 	NumConnections int    `json:"num_connections"`
-// 	LogEvent
-// }
-
-// func (l *P2PDisconnectingDHT) EventName() string {
-// 	return "p2p.disconnecting.dht"
-// }
-
-// type P2PEthDisconnectingBadBlock struct {
-// 	Reason         string `json:"reason"`
-// 	RemoteId       string `json:"remote_id"`
-// 	NumConnections int    `json:"num_connections"`
-// 	LogEvent
-// }
-
-// func (l *P2PEthDisconnectingBadBlock) EventName() string {
-// 	return "p2p.eth.disconnecting.bad_block"
-// }
-
-// type P2PEthDisconnectingBadTx struct {
-// 	Reason         string `json:"reason"`
-// 	RemoteId       string `json:"remote_id"`
-// 	NumConnections int    `json:"num_connections"`
-// 	LogEvent
-// }
-
-// func (l *P2PEthDisconnectingBadTx) EventName() string {
-// 	return "p2p.eth.disconnecting.bad_tx"
-// }
-
-// type EthNewBlockBroadcasted struct {
-// 	BlockNumber     int    `json:"block_number"`
-// 	HeadHash        string `json:"head_hash"`
-// 	BlockHash       string `json:"block_hash"`
-// 	BlockDifficulty int    `json:"block_difficulty"`
-// 	BlockPrevHash   string `json:"block_prev_hash"`
-// 	LogEvent
-// }
-
-// func (l *EthNewBlockBroadcasted) EventName() string {
-// 	return "eth.newblock.broadcasted"
-// }
-
-// type EthNewBlockIsKnown struct {
-// 	BlockNumber     int    `json:"block_number"`
-// 	HeadHash        string `json:"head_hash"`
-// 	BlockHash       string `json:"block_hash"`
-// 	BlockDifficulty int    `json:"block_difficulty"`
-// 	BlockPrevHash   string `json:"block_prev_hash"`
-// 	LogEvent
-// }
-
-// func (l *EthNewBlockIsKnown) EventName() string {
-// 	return "eth.newblock.is_known"
-// }
-
-// type EthNewBlockIsNew struct {
-// 	BlockNumber     int    `json:"block_number"`
-// 	HeadHash        string `json:"head_hash"`
-// 	BlockHash       string `json:"block_hash"`
-// 	BlockDifficulty int    `json:"block_difficulty"`
-// 	BlockPrevHash   string `json:"block_prev_hash"`
-// 	LogEvent
-// }
-
-// func (l *EthNewBlockIsNew) EventName() string {
-// 	return "eth.newblock.is_new"
-// }
-
-// type EthNewBlockMissingParent struct {
-// 	BlockNumber     int    `json:"block_number"`
-// 	HeadHash        string `json:"head_hash"`
-// 	BlockHash       string `json:"block_hash"`
-// 	BlockDifficulty int    `json:"block_difficulty"`
-// 	BlockPrevHash   string `json:"block_prev_hash"`
-// 	LogEvent
-// }
-
-// func (l *EthNewBlockMissingParent) EventName() string {
-// 	return "eth.newblock.missing_parent"
-// }
-
-// type EthNewBlockIsInvalid struct {
-// 	BlockNumber     int    `json:"block_number"`
-// 	HeadHash        string `json:"head_hash"`
-// 	BlockHash       string `json:"block_hash"`
-// 	BlockDifficulty int    `json:"block_difficulty"`
-// 	BlockPrevHash   string `json:"block_prev_hash"`
-// 	LogEvent
-// }
-
-// func (l *EthNewBlockIsInvalid) EventName() string {
-// 	return "eth.newblock.is_invalid"
-// }
-
-// type EthNewBlockChainIsOlder struct {
-// 	BlockNumber     int    `json:"block_number"`
-// 	HeadHash        string `json:"head_hash"`
-// 	BlockHash       string `json:"block_hash"`
-// 	BlockDifficulty int    `json:"block_difficulty"`
-// 	BlockPrevHash   string `json:"block_prev_hash"`
-// 	LogEvent
-// }
-
-// func (l *EthNewBlockChainIsOlder) EventName() string {
-// 	return "eth.newblock.chain.is_older"
-// }
-
-// type EthNewBlockChainIsCanonical struct {
-// 	BlockNumber     int    `json:"block_number"`
-// 	HeadHash        string `json:"head_hash"`
-// 	BlockHash       string `json:"block_hash"`
-// 	BlockDifficulty int    `json:"block_difficulty"`
-// 	BlockPrevHash   string `json:"block_prev_hash"`
-// 	LogEvent
-// }
-
-// func (l *EthNewBlockChainIsCanonical) EventName() string {
-// 	return "eth.newblock.chain.is_cannonical"
-// }
-
-// type EthNewBlockChainNotCanonical struct {
-// 	BlockNumber     int    `json:"block_number"`
-// 	HeadHash        string `json:"head_hash"`
-// 	BlockHash       string `json:"block_hash"`
-// 	BlockDifficulty int    `json:"block_difficulty"`
-// 	BlockPrevHash   string `json:"block_prev_hash"`
-// 	LogEvent
-// }
-
-// func (l *EthNewBlockChainNotCanonical) EventName() string {
-// 	return "eth.newblock.chain.not_cannonical"
-// }
-
-// type EthTxCreated struct {
-// 	TxHash    string `json:"tx_hash"`
-// 	TxSender  string `json:"tx_sender"`
-// 	TxAddress string `json:"tx_address"`
-// 	TxHexRLP  string `json:"tx_hexrlp"`
-// 	TxNonce   int    `json:"tx_nonce"`
-// 	LogEvent
-// }
-
-// func (l *EthTxCreated) EventName() string {
-// 	return "eth.tx.created"
-// }
-
-// type EthTxBroadcasted struct {
-// 	TxHash    string `json:"tx_hash"`
-// 	TxSender  string `json:"tx_sender"`
-// 	TxAddress string `json:"tx_address"`
-// 	TxNonce   int    `json:"tx_nonce"`
-// 	LogEvent
-// }
-
-// func (l *EthTxBroadcasted) EventName() string {
-// 	return "eth.tx.broadcasted"
-// }
-
-// type EthTxValidated struct {
-// 	TxHash    string `json:"tx_hash"`
-// 	TxSender  string `json:"tx_sender"`
-// 	TxAddress string `json:"tx_address"`
-// 	TxNonce   int    `json:"tx_nonce"`
-// 	LogEvent
-// }
-
-// func (l *EthTxValidated) EventName() string {
-// 	return "eth.tx.validated"
-// }
-
-// type EthTxIsInvalid struct {
-// 	TxHash    string `json:"tx_hash"`
-// 	TxSender  string `json:"tx_sender"`
-// 	TxAddress string `json:"tx_address"`
-// 	Reason    string `json:"reason"`
-// 	TxNonce   int    `json:"tx_nonce"`
-// 	LogEvent
-// }
-
-// func (l *EthTxIsInvalid) EventName() string {
-// 	return "eth.tx.is_invalid"
-// }
diff --git a/miner/worker.go b/miner/worker.go
index 68ce44db0..56fd4ea66 100644
--- a/miner/worker.go
+++ b/miner/worker.go
@@ -39,8 +39,6 @@ import (
 	"gopkg.in/fatih/set.v0"
 )
 
-var jsonlogger = logger.NewJsonLogger()
-
 const (
 	resultQueueSize  = 10
 	miningLogAtDepth = 5
diff --git a/node/node_test.go b/node/node_test.go
index 95fa53b06..408d4cfcb 100644
--- a/node/node_test.go
+++ b/node/node_test.go
@@ -218,7 +218,7 @@ func TestServiceRestarts(t *testing.T) {
 	}
 	defer stack.Stop()
 
-	if running || started != 1 {
+	if !running || started != 1 {
 		t.Fatalf("running/started mismatch: have %v/%d, want true/1", running, started)
 	}
 	// Restart the stack a few times and check successful service restarts
diff --git a/p2p/server.go b/p2p/server.go
index cf9672e2d..298148d3e 100644
--- a/p2p/server.go
+++ b/p2p/server.go
@@ -54,8 +54,6 @@ const (
 
 var errServerStopped = errors.New("server stopped")
 
-var srvjslog = logger.NewJsonLogger()
-
 // Config holds Server options.
 type Config struct {
 	// This field must be set to a valid secp256k1 private key.
@@ -737,12 +735,6 @@ func (srv *Server) checkpoint(c *conn, stage chan<- *conn) error {
 // the peer.
 func (srv *Server) runPeer(p *Peer) {
 	glog.V(logger.Debug).Infof("Added %v\n", p)
-	srvjslog.LogJson(&logger.P2PConnected{
-		RemoteId:            p.ID().String(),
-		RemoteAddress:       p.RemoteAddr().String(),
-		RemoteVersionString: p.Name(),
-		NumConnections:      srv.PeerCount(),
-	})
 
 	if srv.newPeerHook != nil {
 		srv.newPeerHook(p)
@@ -753,10 +745,6 @@ func (srv *Server) runPeer(p *Peer) {
 	srv.delpeer <- p
 
 	glog.V(logger.Debug).Infof("Removed %v (%v)\n", p, discreason)
-	srvjslog.LogJson(&logger.P2PDisconnected{
-		RemoteId:       p.ID().String(),
-		NumConnections: srv.PeerCount(),
-	})
 }
 
 // NodeInfo represents a short summary of the information known about the host.
diff --git a/pow/dagger/dagger.go b/pow/dagger/dagger.go
deleted file mode 100644
index f54ba71ca..000000000
--- a/pow/dagger/dagger.go
+++ /dev/null
@@ -1,176 +0,0 @@
-// Copyright 2014 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package dagger
-
-import (
-	"hash"
-	"math/big"
-	"math/rand"
-	"time"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/crypto/sha3"
-	"github.com/ethereum/go-ethereum/logger"
-)
-
-var powlogger = logger.NewLogger("POW")
-
-type Dagger struct {
-	hash *big.Int
-	xn   *big.Int
-}
-
-var Found bool
-
-func (dag *Dagger) Find(obj *big.Int, resChan chan int64) {
-	r := rand.New(rand.NewSource(time.Now().UnixNano()))
-
-	for i := 0; i < 1000; i++ {
-		rnd := r.Int63()
-
-		res := dag.Eval(big.NewInt(rnd))
-		powlogger.Infof("rnd %v\nres %v\nobj %v\n", rnd, res, obj)
-		if res.Cmp(obj) < 0 {
-			// Post back result on the channel
-			resChan <- rnd
-			// Notify other threads we've found a valid nonce
-			Found = true
-		}
-
-		// Break out if found
-		if Found {
-			break
-		}
-	}
-
-	resChan <- 0
-}
-
-func (dag *Dagger) Search(hash, diff *big.Int) (uint64, []byte) {
-	// TODO fix multi threading. Somehow it results in the wrong nonce
-	amountOfRoutines := 1
-
-	dag.hash = hash
-
-	obj := common.BigPow(2, 256)
-	obj = obj.Div(obj, diff)
-
-	Found = false
-	resChan := make(chan int64, 3)
-	var res int64
-
-	for k := 0; k < amountOfRoutines; k++ {
-		go dag.Find(obj, resChan)
-
-		// Wait for each go routine to finish
-	}
-	for k := 0; k < amountOfRoutines; k++ {
-		// Get the result from the channel. 0 = quit
-		if r := <-resChan; r != 0 {
-			res = r
-		}
-	}
-
-	return uint64(res), nil
-}
-
-func (dag *Dagger) Verify(hash, diff, nonce *big.Int) bool {
-	dag.hash = hash
-
-	obj := common.BigPow(2, 256)
-	obj = obj.Div(obj, diff)
-
-	return dag.Eval(nonce).Cmp(obj) < 0
-}
-
-func DaggerVerify(hash, diff, nonce *big.Int) bool {
-	dagger := &Dagger{}
-	dagger.hash = hash
-
-	obj := common.BigPow(2, 256)
-	obj = obj.Div(obj, diff)
-
-	return dagger.Eval(nonce).Cmp(obj) < 0
-}
-
-func (dag *Dagger) Node(L uint64, i uint64) *big.Int {
-	if L == i {
-		return dag.hash
-	}
-
-	var m *big.Int
-	if L == 9 {
-		m = big.NewInt(16)
-	} else {
-		m = big.NewInt(3)
-	}
-
-	sha := sha3.NewKeccak256()
-	sha.Reset()
-	d := sha3.NewKeccak256()
-	b := new(big.Int)
-	ret := new(big.Int)
-
-	for k := 0; k < int(m.Uint64()); k++ {
-		d.Reset()
-		d.Write(dag.hash.Bytes())
-		d.Write(dag.xn.Bytes())
-		d.Write(big.NewInt(int64(L)).Bytes())
-		d.Write(big.NewInt(int64(i)).Bytes())
-		d.Write(big.NewInt(int64(k)).Bytes())
-
-		b.SetBytes(Sum(d))
-		pk := b.Uint64() & ((1 << ((L - 1) * 3)) - 1)
-		sha.Write(dag.Node(L-1, pk).Bytes())
-	}
-
-	ret.SetBytes(Sum(sha))
-
-	return ret
-}
-
-func Sum(sha hash.Hash) []byte {
-	//in := make([]byte, 32)
-	return sha.Sum(nil)
-}
-
-func (dag *Dagger) Eval(N *big.Int) *big.Int {
-	pow := common.BigPow(2, 26)
-	dag.xn = pow.Div(N, pow)
-
-	sha := sha3.NewKeccak256()
-	sha.Reset()
-	ret := new(big.Int)
-
-	for k := 0; k < 4; k++ {
-		d := sha3.NewKeccak256()
-		b := new(big.Int)
-
-		d.Reset()
-		d.Write(dag.hash.Bytes())
-		d.Write(dag.xn.Bytes())
-		d.Write(N.Bytes())
-		d.Write(big.NewInt(int64(k)).Bytes())
-
-		b.SetBytes(Sum(d))
-		pk := (b.Uint64() & 0x1ffffff)
-
-		sha.Write(dag.Node(9, pk).Bytes())
-	}
-
-	return ret.SetBytes(Sum(sha))
-}
diff --git a/pow/dagger/dagger_test.go b/pow/dagger/dagger_test.go
deleted file mode 100644
index 39b74df30..000000000
--- a/pow/dagger/dagger_test.go
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright 2014 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package dagger
-
-import (
-	"math/big"
-	"testing"
-
-	"github.com/ethereum/go-ethereum/common"
-)
-
-func BenchmarkDaggerSearch(b *testing.B) {
-	hash := big.NewInt(0)
-	diff := common.BigPow(2, 36)
-	o := big.NewInt(0) // nonce doesn't matter. We're only testing against speed, not validity
-
-	// Reset timer so the big generation isn't included in the benchmark
-	b.ResetTimer()
-	// Validate
-	DaggerVerify(hash, diff, o)
-}
diff --git a/pow/ezp/pow.go b/pow/ezp/pow.go
deleted file mode 100644
index 0f7ee3570..000000000
--- a/pow/ezp/pow.go
+++ /dev/null
@@ -1,113 +0,0 @@
-// Copyright 2014 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum 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 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum 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.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package ezp
-
-import (
-	"encoding/binary"
-	"math/big"
-	"math/rand"
-	"time"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/crypto/sha3"
-	"github.com/ethereum/go-ethereum/logger"
-	"github.com/ethereum/go-ethereum/pow"
-)
-
-var powlogger = logger.NewLogger("POW")
-
-type EasyPow struct {
-	hash     *big.Int
-	HashRate int64
-	turbo    bool
-}
-
-func New() *EasyPow {
-	return &EasyPow{turbo: false}
-}
-
-func (pow *EasyPow) GetHashrate() int64 {
-	return pow.HashRate
-}
-
-func (pow *EasyPow) Turbo(on bool) {
-	pow.turbo = on
-}
-
-func (pow *EasyPow) Search(block pow.Block, stop <-chan struct{}, index int) (uint64, []byte) {
-	r := rand.New(rand.NewSource(time.Now().UnixNano()))
-	hash := block.HashNoNonce()
-	diff := block.Difficulty()
-	//i := int64(0)
-	// TODO fix offset
-	i := rand.Int63()
-	starti := i
-	start := time.Now().UnixNano()
-
-	defer func() { pow.HashRate = 0 }()
-
-	// Make sure stop is empty
-empty:
-	for {
-		select {
-		case <-stop:
-		default:
-			break empty
-		}
-	}
-
-	for {
-		select {
-		case <-stop:
-			return 0, nil
-		default:
-			i++
-
-			elapsed := time.Now().UnixNano() - start
-			hashes := ((float64(1e9) / float64(elapsed)) * float64(i-starti)) / 1000
-			pow.HashRate = int64(hashes)
-
-			sha := uint64(r.Int63())
-			if verify(hash, diff, sha) {
-				return sha, nil
-			}
-		}
-
-		if !pow.turbo {
-			time.Sleep(20 * time.Microsecond)
-		}
-	}
-}
-
-func (pow *EasyPow) Verify(block pow.Block) bool {
-	return Verify(block)
-}
-
-func verify(hash common.Hash, diff *big.Int, nonce uint64) bool {
-	sha := sha3.NewKeccak256()
-	n := make([]byte, 8)
-	binary.PutUvarint(n, nonce)
-	sha.Write(n)
-	sha.Write(hash[:])
-	verification := new(big.Int).Div(common.BigPow(2, 256), diff)
-	res := common.BigD(sha.Sum(nil))
-	return res.Cmp(verification) <= 0
-}
-
-func Verify(block pow.Block) bool {
-	return verify(block.HashNoNonce(), block.Difficulty(), block.Nonce())
-}
diff --git a/swarm/network/protocol.go b/swarm/network/protocol.go
index 4fffaac6d..763fb0b8e 100644
--- a/swarm/network/protocol.go
+++ b/swarm/network/protocol.go
@@ -538,13 +538,6 @@ func (self *bzz) protoError(code int, format string, params ...interface{}) (err
 	return
 }
 
-func (self *bzz) protoErrorDisconnect(err *errs.Error) {
-	err.Log(glog.V(logger.Info))
-	if err.Fatal() {
-		self.peer.Disconnect(p2p.DiscSubprotocolError)
-	}
-}
-
 func (self *bzz) send(msg uint64, data interface{}) error {
 	if self.hive.blockWrite {
 		return fmt.Errorf("network write blocked")