go-log/my_logger.go

54 lines
872 B
Go

package log
import (
"fmt"
"io"
"os"
"runtime"
"strings"
"time"
)
type myLogger struct {
Writer io.Writer
prefix string
begin time.Time
level uint8
}
func (l myLogger) log(s ...interface{}) {
if l.Writer == nil {
return
}
s = append([]interface{}{l.prefix, funcName()}, s...)
fmt.Fprintln(l.Writer, s...)
}
func (l myLogger) logf(format string, s ...interface{}) {
if l.Writer == nil {
return
}
format = fmt.Sprintf("%s %s %s\n", l.prefix, funcName(), format)
fmt.Fprintf(l.Writer, format, s...)
}
func funcName() string {
pc := make([]uintptr, 10)
runtime.Callers(2, pc)
for _, p := range pc {
fn := runtime.FuncForPC(p)
if !strings.HasPrefix(fn.Name(), "github.com/rjbasitali/go-log") {
return fn.Name()
}
}
return ""
}
func NewLogger() Logger {
return myLogger{
Writer: os.Stdout,
begin: time.Now(),
level: 63,
}
}