mirror of https://github.com/ethereum/go-ethereum
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
126 lines
3.2 KiB
126 lines
3.2 KiB
/*
|
|
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 (
|
|
"fmt"
|
|
"os"
|
|
)
|
|
|
|
// LogSystem is implemented by log output devices.
|
|
// All methods can be called concurrently from multiple goroutines.
|
|
type LogSystem interface {
|
|
GetLogLevel() LogLevel
|
|
SetLogLevel(i LogLevel)
|
|
LogPrint(LogLevel, string)
|
|
}
|
|
|
|
type message struct {
|
|
level LogLevel
|
|
msg string
|
|
}
|
|
|
|
type LogLevel uint8
|
|
|
|
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 <- message{level, logger.tag + fmt.Sprintln(v...)}
|
|
}
|
|
|
|
func (logger *Logger) sendf(level LogLevel, format string, v ...interface{}) {
|
|
logMessageC <- message{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)
|
|
}
|
|
|