awl/logawl/logawl.go
grumbulon 1ec4cb4d05
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More unit tests (#19)
Co-authored-by: grumbulon <grumbulon@grumbulon.xyz>
Co-committed-by: grumbulon <grumbulon@grumbulon.xyz>
2022-07-02 16:34:42 +00:00

74 lines
1.3 KiB
Go

// SPDX-License-Identifier: BSD-3-Clause
package logawl
import (
"fmt"
"io"
"sync"
"sync/atomic"
)
type Level int32
type Logger struct {
Mu sync.Mutex
Level Level
Prefix string
Out io.Writer
buf []byte
isDiscard int32
}
// Stores whatever input value is in mem address of l.level
func (l *Logger) SetLevel(level Level) {
atomic.StoreInt32((*int32)(&l.Level), int32(level))
}
// Mostly nothing
func (l *Logger) GetLevel() Level {
return l.level()
}
// Retrieves whatever was stored in mem address of l.level
func (l *Logger) level() Level {
return Level(atomic.LoadInt32((*int32)(&l.Level)))
}
// Unmarshalls the int value of level for writing the header
func (l *Logger) UnMarshalLevel(lv Level) (string, error) {
switch lv {
case 0:
return "FATAL ", nil
case 1:
return "ERROR ", nil
case 2:
return "INFO ", nil
case 3:
return "DEBUG ", nil
}
return "", fmt.Errorf("invalid log level choice")
}
func (l *Logger) IsLevel(level Level) bool {
return l.level() >= level
}
var AllLevels = []Level{
FatalLevel,
ErrorLevel,
InfoLevel,
DebugLevel,
}
const (
// Fatal logs (will call exit(1))
FatalLevel Level = iota
// Error logs
ErrorLevel
// What is going on level
InfoLevel
// Verbose log level.
DebugLevel
)