Refactor

log/event.go

@@ -0,0 +1,39 @@
+package log
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/xjasonlyu/tun2socks/common/observable"
+)
+
+var (
+	logCh  = make(chan interface{})
+	source = observable.NewObservable(logCh)
+)
+
+type Event struct {
+	Level   Level     `json:"level"`
+	Message string    `json:"msg"`
+	Time    time.Time `json:"time"`
+}
+
+func newEvent(level Level, format string, args ...interface{}) *Event {
+	event := &Event{
+		Level:   level,
+		Time:    time.Now(),
+		Message: fmt.Sprintf(format, args...),
+	}
+	logCh <- event /* send all events to logCh */
+
+	return event
+}
+
+func Subscribe() observable.Subscription {
+	sub, _ := source.Subscribe()
+	return sub
+}
+
+func UnSubscribe(sub observable.Subscription) {
+	source.UnSubscribe(sub)
+}