增加mutex类

pkg/distlock/service/mutex.go

@@ -0,0 +1,30 @@
+package service
+
+import "gitlink.org.cn/cloudream/common/pkg/distlock"
+
+type Mutex struct {
+	svc       *Service
+	lockReq   distlock.LockRequest
+	lockReqID string
+}
+
+func NewMutex(svc *Service, lockReq distlock.LockRequest) *Mutex {
+	return &Mutex{
+		svc:     svc,
+		lockReq: lockReq,
+	}
+}
+
+func (m *Mutex) Lock() error {
+	reqID, err := m.svc.Acquire(m.lockReq)
+	if err != nil {
+		return err
+	}
+
+	m.lockReqID = reqID
+	return nil
+}
+
+func (m *Mutex) Unlock() error {
+	return m.svc.Release(m.lockReqID)
+}