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42 lines
729 B

package logx
import (
"bytes"
"fmt"
"io"
"log"
"sync"
)
type stdLogger struct {
log *log.Logger
pool *sync.Pool
}
func NewStdLogger(w io.Writer) Logger {
return &stdLogger{
log: log.New(w, "", 0),
pool: &sync.Pool{
New: func() any {
return new(bytes.Buffer)
},
},
}
}
func (l *stdLogger) Log(level Level, keyvals ...any) error {
if len(keyvals) == 0 {
return nil
}
if len(keyvals)&1 == 1 {
keyvals = append(keyvals, "KEYVALS UNPAIRED")
}
buf := l.pool.Get().(*bytes.Buffer)
buf.WriteString(level.String())
for i := 0; i < len(keyvals); i += 2 {
_, _ = fmt.Fprintf(buf, " %s=%v", keyvals[i], keyvals[i+1])
}
_ = l.log.Output(4, buf.String())
buf.Reset()
l.pool.Put(buf)
return nil
}