log

README

log

Extension module of golang logging

Documentation

Index

• Constants
• Variables
• func Debug(v ...interface{})
• func Debugf(format string, v ...interface{})
• func Error(v ...interface{})
• func Errorf(format string, v ...interface{})
• func Fatal(v ...interface{})
• func Fatalf(format string, v ...interface{})
• func Fatalln(v ...interface{})
• func Flags() int
• func GetOutputLevel() int
• func Info(v ...interface{})
• func Infof(format string, v ...interface{})
• func Panic(v ...interface{})
• func Panicf(format string, v ...interface{})
• func Panicln(v ...interface{})
• func Prefix() string
• func Print(v ...interface{})
• func Printf(format string, v ...interface{})
• func Println(v ...interface{})
• func SetFlags(flag int)
• func SetOutput(w io.Writer)
• func SetOutputLevel(lvl int)
• func SetPrefix(prefix string)
• func Stack(v ...interface{})
• func Warn(v ...interface{})
• func Warnf(format string, v ...interface{})
• type Logger
  • func New(out io.Writer, prefix string, flag int) *Logger
  • func (l *Logger) Debug(v ...interface{})
  • func (l *Logger) Debugf(format string, v ...interface{})
  • func (l *Logger) Error(v ...interface{})
  • func (l *Logger) Errorf(format string, v ...interface{})
  • func (l *Logger) Fatal(v ...interface{})
  • func (l *Logger) Fatalf(format string, v ...interface{})
  • func (l *Logger) Fatalln(v ...interface{})
  • func (l *Logger) Flags() int
  • func (l *Logger) Info(v ...interface{})
  • func (l *Logger) Infof(format string, v ...interface{})
  • func (l *Logger) Output(reqId string, lvl int, calldepth int, s string) error
  • func (l *Logger) Panic(v ...interface{})
  • func (l *Logger) Panicf(format string, v ...interface{})
  • func (l *Logger) Panicln(v ...interface{})
  • func (l *Logger) Prefix() string
  • func (l *Logger) Print(v ...interface{})
  • func (l *Logger) Printf(format string, v ...interface{})
  • func (l *Logger) Println(v ...interface{})
  • func (l *Logger) SetFlags(flag int)
  • func (l *Logger) SetOutputLevel(lvl int)
  • func (l *Logger) SetPrefix(prefix string)
  • func (l *Logger) Stack(v ...interface{})
  • func (l *Logger) Stat() (stats []int64)
  • func (l *Logger) Warn(v ...interface{})
  • func (l *Logger) Warnf(format string, v ...interface{})

Constants

const (
	// Bits or'ed together to control what's printed. There is no control over the
	// order they appear (the order listed here) or the format they present (as
	// described in the comments).  A colon appears after these items:
	//	2009/0123 01:23:23.123123 /a/b/c/d.go:23: message
	Ldate         = 1 << iota     // the date: 2009/0123
	Ltime                         // the time: 01:23:23
	Lmicroseconds                 // microsecond resolution: 01:23:23.123123.  assumes Ltime.
	Llongfile                     // full file name and line number: /a/b/c/d.go:23
	Lshortfile                    // final file name element and line number: d.go:23. overrides Llongfile
	Lmodule                       // module name
	Llevel                        // level: 0(Debug), 1(Info), 2(Warn), 3(Error), 4(Panic), 5(Fatal)
	LstdFlags     = Ldate | Ltime // initial values for the standard logger
	Ldefault      = Lmodule | Llevel | Lshortfile | LstdFlags
)

These flags define which text to prefix to each log entry generated by the Logger.

const (
	Ldebug = iota
	Linfo
	Lwarn
	Lerror
	Lpanic
	Lfatal
)

Variables

var Std = New(os.Stderr, "", Ldefault)

Functions

func Debug

func Debug(v ...interface{})

func Debugf

func Debugf(format string, v ...interface{})

func Error

func Error(v ...interface{})

func Errorf

func Errorf(format string, v ...interface{})

func Fatal

func Fatal(v ...interface{})

Fatal is equivalent to Print() followed by a call to os.Exit(1).

func Fatalf

func Fatalf(format string, v ...interface{})

Fatalf is equivalent to Printf() followed by a call to os.Exit(1).

func Fatalln

func Fatalln(v ...interface{})

Fatalln is equivalent to Println() followed by a call to os.Exit(1).

func Flags

func Flags() int

Flags returns the output flags for the standard logger.

func GetOutputLevel

func GetOutputLevel() int

func Info

func Info(v ...interface{})

func Infof

func Infof(format string, v ...interface{})

func Panic

func Panic(v ...interface{})

Panic is equivalent to Print() followed by a call to panic().

func Panicf

func Panicf(format string, v ...interface{})

Panicf is equivalent to Printf() followed by a call to panic().

func Panicln

func Panicln(v ...interface{})

Panicln is equivalent to Println() followed by a call to panic().

func Prefix

func Prefix() string

Prefix returns the output prefix for the standard logger.

func Print

func Print(v ...interface{})

Print calls Output to print to the standard logger. Arguments are handled in the manner of fmt.Print.

func Printf

func Printf(format string, v ...interface{})

Printf calls Output to print to the standard logger. Arguments are handled in the manner of fmt.Printf.

func Println

func Println(v ...interface{})

Println calls Output to print to the standard logger. Arguments are handled in the manner of fmt.Println.

func SetFlags

func SetFlags(flag int)

SetFlags sets the output flags for the standard logger.

func SetOutput

func SetOutput(w io.Writer)

SetOutput sets the output destination for the standard logger.

func SetOutputLevel

func SetOutputLevel(lvl int)

func SetPrefix

func SetPrefix(prefix string)

SetPrefix sets the output prefix for the standard logger.

func Stack

func Stack(v ...interface{})

func Warn

func Warn(v ...interface{})

func Warnf

func Warnf(format string, v ...interface{})

Types

type Logger

type Logger struct {
	Level int
	// contains filtered or unexported fields
}

A Logger represents an active logging object that generates lines of output to an io.Writer. Each logging operation makes a single call to the Writer's Write method. A Logger can be used simultaneously from multiple goroutines; it guarantees to serialize access to the Writer.

func New

func New(out io.Writer, prefix string, flag int) *Logger

New creates a new Logger. The out variable sets the destination to which log data will be written. The prefix appears at the beginning of each generated log line. The flag argument defines the logging properties.

func (*Logger) Debug

func (l *Logger) Debug(v ...interface{})

func (*Logger) Debugf

func (l *Logger) Debugf(format string, v ...interface{})

func (*Logger) Error

func (l *Logger) Error(v ...interface{})

func (*Logger) Errorf

func (l *Logger) Errorf(format string, v ...interface{})

func (*Logger) Fatal

func (l *Logger) Fatal(v ...interface{})

func (*Logger) Fatalf

func (l *Logger) Fatalf(format string, v ...interface{})

Fatalf is equivalent to l.Printf() followed by a call to os.Exit(1).

func (*Logger) Fatalln

func (l *Logger) Fatalln(v ...interface{})

Fatalln is equivalent to l.Println() followed by a call to os.Exit(1).

func (*Logger) Flags

func (l *Logger) Flags() int

Flags returns the output flags for the logger.

func (*Logger) Info

func (l *Logger) Info(v ...interface{})

func (*Logger) Infof

func (l *Logger) Infof(format string, v ...interface{})

func (*Logger) Output

func (l *Logger) Output(reqId string, lvl int, calldepth int, s string) error

Output writes the output for a logging event. The string s contains the text to print after the prefix specified by the flags of the Logger. A newline is appended if the last character of s is not already a newline. Calldepth is used to recover the PC and is provided for generality, although at the moment on all pre-defined paths it will be 2.

func (*Logger) Panic

func (l *Logger) Panic(v ...interface{})

Panic is equivalent to l.Print() followed by a call to panic().

func (*Logger) Panicf

func (l *Logger) Panicf(format string, v ...interface{})

Panicf is equivalent to l.Printf() followed by a call to panic().

func (*Logger) Panicln

func (l *Logger) Panicln(v ...interface{})

Panicln is equivalent to l.Println() followed by a call to panic().

func (*Logger) Prefix

func (l *Logger) Prefix() string

Prefix returns the output prefix for the logger.

func (*Logger) Print

func (l *Logger) Print(v ...interface{})

Print calls l.Output to print to the logger. Arguments are handled in the manner of fmt.Print.

func (*Logger) Printf

func (l *Logger) Printf(format string, v ...interface{})

Printf calls l.Output to print to the logger. Arguments are handled in the manner of fmt.Printf.

func (*Logger) Println

func (l *Logger) Println(v ...interface{})

Println calls l.Output to print to the logger. Arguments are handled in the manner of fmt.Println.

func (*Logger) SetFlags

func (l *Logger) SetFlags(flag int)

SetFlags sets the output flags for the logger.

func (*Logger) SetOutputLevel

func (l *Logger) SetOutputLevel(lvl int)

SetOutputLevel sets the output level for the logger.

func (*Logger) SetPrefix

func (l *Logger) SetPrefix(prefix string)

SetPrefix sets the output prefix for the logger.

func (*Logger) Stack

func (l *Logger) Stack(v ...interface{})

func (*Logger) Stat

func (l *Logger) Stat() (stats []int64)

func (*Logger) Warn

func (l *Logger) Warn(v ...interface{})

func (*Logger) Warnf

func (l *Logger) Warnf(format string, v ...interface{})