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Index ¶
Constants ¶
const ( KBSize = 1024 << (10 * iota) MBSize GBSize )
const ( // Llongfile modifies the logger output to include full path and line number // of the logging callsite, e.g. /a/b/c/main.go:123. Llongfile uint32 = 1 << iota // Lshortfile modifies the logger output to include filename and line number // of the logging callsite, e.g. main.go:123. Overrides Llongfile. Lshortfile )
Flags to modify Backend's behavior.
Variables ¶
This section is empty.
Functions ¶
func NewFileWriter ¶
Types ¶
type Backend ¶
type Backend struct {
// contains filtered or unexported fields
}
Backend is a logging backend. Subsystems created from the backend write to the backend's Writer. Backend provides atomic writes to the Writer from all subsystems.
func NewBackend ¶
NewBackend creates a logger backend from a Writer.
type Level ¶
type Level uint32
Level is the level at which a logger is configured. All messages sent to a level which is below the current level are filtered.
Level constants.
func LevelFromString ¶
LevelFromString returns a level based on the input string s. If the input can't be interpreted as a valid log level, the info level and false is returned.
type Logger ¶
type Logger interface {
// Debugf formats message according to format specifier and writes to
// log with LevelDebug.
Debugf(format string, params ...interface{})
// Infof formats message according to format specifier and writes to
// log with LevelInfo.
Infof(format string, params ...interface{})
// Warnf formats message according to format specifier and writes to
// to log with LevelWarn.
Warnf(format string, params ...interface{})
// Errorf formats message according to format specifier and writes to
// to log with LevelError.
Errorf(format string, params ...interface{})
// Fatalf formats message according to format specifier and writes to
// log with LevelFatal.
Fatalf(format string, params ...interface{})
// Debug formats message using the default formats for its operands
// and writes to log with LevelDebug.
Debug(v ...interface{})
// Info formats message using the default formats for its operands
// and writes to log with LevelInfo.
Info(v ...interface{})
// Warn formats message using the default formats for its operands
// and writes to log with LevelWarn.
Warn(v ...interface{})
// Error formats message using the default formats for its operands
// and writes to log with LevelError.
Error(v ...interface{})
// Fatal formats message using the default formats for its operands
// and writes to log with LevelFatal.
Fatal(v ...interface{})
// Level returns the current logging level.
Level() Level
// SetLevel changes the logging level to the passed level.
SetLevel(level Level)
}
Logger is an interface which describes a level-based logger. A default implementation of Logger is implemented by this package and can be created by calling (*Backend).Logger.
var Disabled Logger
Disabled is a Logger that will never output anything.
Source Files