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@ -1,188 +1,188 @@ |
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package ethlog |
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import ( |
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"fmt" |
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"sync" |
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"log" |
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"io" |
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"os" |
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"fmt" |
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"io" |
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"log" |
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"os" |
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"sync" |
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) |
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type LogSystem interface { |
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GetLogLevel() LogLevel |
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SetLogLevel(i LogLevel) |
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Println(v ...interface{}) |
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Printf(format string, v ...interface{}) |
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GetLogLevel() LogLevel |
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SetLogLevel(i LogLevel) |
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Println(v ...interface{}) |
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Printf(format string, v ...interface{}) |
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} |
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type logMessage struct { |
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LogLevel LogLevel |
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format bool |
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msg string |
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LogLevel LogLevel |
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format bool |
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msg string |
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} |
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func newPrintlnLogMessage(level LogLevel, tag string, v...interface{}) *logMessage { |
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return &logMessage{level, false, fmt.Sprintf("[%s] %s", tag, fmt.Sprint(v...))} |
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func newPrintlnLogMessage(level LogLevel, tag string, v ...interface{}) *logMessage { |
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return &logMessage{level, false, fmt.Sprintf("[%s] %s", tag, fmt.Sprint(v...))} |
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} |
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func newPrintfLogMessage(level LogLevel, tag string, format string, v...interface{}) *logMessage { |
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return &logMessage{level, true, fmt.Sprintf("[%s] %s", tag, fmt.Sprintf(format, v...))} |
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func newPrintfLogMessage(level LogLevel, tag string, format string, v ...interface{}) *logMessage { |
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return &logMessage{level, true, fmt.Sprintf("[%s] %s", tag, fmt.Sprintf(format, v...))} |
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} |
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func (msg *logMessage) send(logger LogSystem) { |
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if msg.format { |
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logger.Printf(msg.msg) |
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} else { |
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logger.Println(msg.msg) |
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} |
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if msg.format { |
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logger.Printf(msg.msg) |
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} else { |
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logger.Println(msg.msg) |
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} |
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} |
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var logMessages chan(*logMessage) |
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var logSystems []LogSystem |
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var logMessages chan (*logMessage) |
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var logSystems []LogSystem |
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var drained = true |
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type LogLevel uint8 |
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const ( |
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Silence LogLevel = iota |
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ErrorLevel |
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WarnLevel |
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InfoLevel |
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DebugLevel |
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DebugDetailLevel |
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Silence LogLevel = iota |
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ErrorLevel |
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WarnLevel |
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InfoLevel |
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DebugLevel |
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DebugDetailLevel |
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) |
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// log messages are dispatched to log writers
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func start() { |
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for { |
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select { |
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case msg := <- logMessages: |
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for _, logSystem := range logSystems { |
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if logSystem.GetLogLevel() >= msg.LogLevel { |
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msg.send(logSystem) |
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} |
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} |
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default: |
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drained = true |
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} |
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} |
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for { |
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select { |
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case msg := <-logMessages: |
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for _, logSystem := range logSystems { |
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if logSystem.GetLogLevel() >= msg.LogLevel { |
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msg.send(logSystem) |
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} |
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} |
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default: |
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drained = true |
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} |
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} |
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} |
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// waits until log messages are drained (dispatched to log writers)
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func Flush() { |
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for !drained {} |
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for !drained { |
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} |
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} |
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type Logger struct { |
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tag string |
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tag string |
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} |
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func NewLogger(tag string) *Logger { |
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return &Logger{tag} |
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return &Logger{tag} |
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} |
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func AddLogSystem(logSystem LogSystem) { |
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var mutex = &sync.Mutex{} |
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mutex.Lock() |
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defer mutex.Unlock() |
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if logSystems == nil { |
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logMessages = make(chan *logMessage) |
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go start() |
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} |
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logSystems = append(logSystems, logSystem) |
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var mutex = &sync.Mutex{} |
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mutex.Lock() |
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defer mutex.Unlock() |
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if logSystems == nil { |
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logMessages = make(chan *logMessage) |
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go start() |
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} |
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logSystems = append(logSystems, logSystem) |
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} |
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func (logger *Logger) sendln(level LogLevel, v...interface{}) { |
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if logMessages != nil { |
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msg := newPrintlnLogMessage(level, logger.tag, v...) |
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drained = false |
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logMessages <- msg |
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} |
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func (logger *Logger) sendln(level LogLevel, v ...interface{}) { |
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if logMessages != nil { |
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msg := newPrintlnLogMessage(level, logger.tag, v...) |
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drained = false |
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logMessages <- msg |
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} |
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} |
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func (logger *Logger) sendf(level LogLevel, format string, v...interface{}) { |
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if logMessages != nil { |
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msg := newPrintfLogMessage(level, logger.tag, format, v...) |
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drained = false |
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logMessages <- msg |
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} |
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func (logger *Logger) sendf(level LogLevel, format string, v ...interface{}) { |
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if logMessages != nil { |
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msg := newPrintfLogMessage(level, logger.tag, format, v...) |
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drained = false |
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logMessages <- msg |
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} |
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} |
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func (logger *Logger) Errorln(v...interface{}) { |
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logger.sendln(ErrorLevel, v...) |
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func (logger *Logger) Errorln(v ...interface{}) { |
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logger.sendln(ErrorLevel, v...) |
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} |
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func (logger *Logger) Warnln(v...interface{}) { |
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logger.sendln(WarnLevel, v...) |
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func (logger *Logger) Warnln(v ...interface{}) { |
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logger.sendln(WarnLevel, v...) |
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} |
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func (logger *Logger) Infoln(v...interface{}) { |
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logger.sendln(InfoLevel, v...) |
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func (logger *Logger) Infoln(v ...interface{}) { |
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logger.sendln(InfoLevel, v...) |
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} |
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func (logger *Logger) Debugln(v...interface{}) { |
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logger.sendln(DebugLevel, v...) |
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func (logger *Logger) Debugln(v ...interface{}) { |
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logger.sendln(DebugLevel, v...) |
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} |
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func (logger *Logger) DebugDetailln(v...interface{}) { |
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logger.sendln(DebugDetailLevel, v...) |
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func (logger *Logger) DebugDetailln(v ...interface{}) { |
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logger.sendln(DebugDetailLevel, v...) |
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} |
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func (logger *Logger) Errorf(format string, v...interface{}) { |
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logger.sendf(ErrorLevel, format, v...) |
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func (logger *Logger) Errorf(format string, v ...interface{}) { |
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logger.sendf(ErrorLevel, format, v...) |
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} |
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func (logger *Logger) Warnf(format string, v...interface{}) { |
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logger.sendf(WarnLevel, format, v...) |
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func (logger *Logger) Warnf(format string, v ...interface{}) { |
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logger.sendf(WarnLevel, format, v...) |
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} |
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func (logger *Logger) Infof(format string, v...interface{}) { |
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logger.sendf(InfoLevel, format, v...) |
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func (logger *Logger) Infof(format string, v ...interface{}) { |
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logger.sendf(InfoLevel, format, v...) |
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} |
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func (logger *Logger) Debugf(format string, v...interface{}) { |
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logger.sendf(DebugLevel, format, v...) |
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func (logger *Logger) Debugf(format string, v ...interface{}) { |
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logger.sendf(DebugLevel, format, v...) |
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} |
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func (logger *Logger) DebugDetailf(format string, v...interface{}) { |
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logger.sendf(DebugDetailLevel, format, v...) |
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func (logger *Logger) DebugDetailf(format string, v ...interface{}) { |
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logger.sendf(DebugDetailLevel, format, v...) |
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} |
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func (logger *Logger) Fatalln (v...interface{}) { |
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logger.sendln(ErrorLevel, v...) |
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Flush() |
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os.Exit(0) |
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func (logger *Logger) Fatalln(v ...interface{}) { |
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logger.sendln(ErrorLevel, v...) |
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Flush() |
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os.Exit(0) |
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} |
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func (logger *Logger) Fatalf (format string, v...interface{}) { |
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logger.sendf(ErrorLevel, format, v...) |
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Flush() |
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os.Exit(0) |
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func (logger *Logger) Fatalf(format string, v ...interface{}) { |
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logger.sendf(ErrorLevel, format, v...) |
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Flush() |
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os.Exit(0) |
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} |
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type StdLogSystem struct { |
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logger *log.Logger |
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level LogLevel |
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logger *log.Logger |
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level LogLevel |
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} |
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func (t *StdLogSystem) Println(v ...interface{}) { |
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t.logger.Println(v...) |
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t.logger.Println(v...) |
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} |
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func (t *StdLogSystem) Printf(format string, v ...interface{}) { |
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t.logger.Printf(format, v...) |
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t.logger.Printf(format, v...) |
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} |
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func (t *StdLogSystem) SetLogLevel(i LogLevel) { |
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t.level = i |
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t.level = i |
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} |
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func (t *StdLogSystem) GetLogLevel() LogLevel { |
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return t.level |
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return t.level |
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} |
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func NewStdLogSystem(writer io.Writer, flags int, level LogLevel) *StdLogSystem { |
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logger := log.New(writer, "", flags) |
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return &StdLogSystem{logger, level} |
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logger := log.New(writer, "", flags) |
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return &StdLogSystem{logger, level} |
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} |
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