From 13e3b2f433c48fe81423c1a13e9a5194ece61b01 Mon Sep 17 00:00:00 2001 From: Felix Lange Date: Fri, 6 Jan 2017 16:55:03 +0100 Subject: [PATCH] logger, pow/dagger, pow/ezp: delete dead code --- cmd/geth/main.go | 1 - cmd/utils/cmd.go | 1 - core/block_validator_test.go | 6 +- core/blockchain.go | 3 - errs/errors.go | 22 -- errs/errors_test.go | 21 -- logger/example_test.go | 37 ---- logger/log.go | 65 ------ logger/loggers.go | 149 -------------- logger/loggers_test.go | 192 ------------------ logger/logsystem.go | 76 ------- logger/sys.go | 142 ------------- logger/types.go | 381 ----------------------------------- miner/worker.go | 2 - node/node_test.go | 2 +- p2p/server.go | 12 -- pow/dagger/dagger.go | 176 ---------------- pow/dagger/dagger_test.go | 35 ---- pow/ezp/pow.go | 113 ----------- swarm/network/protocol.go | 7 - 20 files changed, 3 insertions(+), 1440 deletions(-) delete mode 100644 logger/example_test.go delete mode 100644 logger/log.go delete mode 100644 logger/loggers.go delete mode 100644 logger/loggers_test.go delete mode 100644 logger/logsystem.go delete mode 100644 logger/sys.go delete mode 100644 logger/types.go delete mode 100644 pow/dagger/dagger.go delete mode 100644 pow/dagger/dagger_test.go delete mode 100644 pow/ezp/pow.go 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 . - -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 . - -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 . - -/* -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 . - -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 . - -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 . - -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 . - -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 . - -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 . - -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 . - -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")