feat(wip): udp rework server side

core/internal/utils/atomic.go

@@ -0,0 +1,24 @@
+package utils
+
+import (
+	"sync/atomic"
+	"time"
+)
+
+type AtomicTime struct {
+	v atomic.Value
+}
+
+func NewAtomicTime(t time.Time) *AtomicTime {
+	a := &AtomicTime{}
+	a.Set(t)
+	return a
+}
+
+func (t *AtomicTime) Set(new time.Time) {
+	t.v.Store(new)
+}
+
+func (t *AtomicTime) Get() time.Time {
+	return t.v.Load().(time.Time)
+}