update

herr.h

@@ -50,7 +50,8 @@
     F(ERR_GROUP_NOT_FOUND,      3001, "group not found")    \
     F(ERR_PERSON_NOT_FOUND,     3002, "person not found")   \
     F(ERR_FACE_NOT_FOUND,       3003, "face not found")     \
-    F(ERR_DEVICE_NOT_FOUND,     3004, "device not found")
+    F(ERR_DEVICE_NOT_FOUND,     3004, "device not found")   \
+    F(ERR_DEVICE_DISABLE,       3005, "device disable")
 
 #define FOREACH_ERR_GRPC(F)     \
     F(ERR_GRPC_FIRST,           4000, "grpc error") \

htask.h

@@ -21,7 +21,7 @@ public:
 
     HTask() {
         state_ = TASK_STATE_NOT_READY;
-        errno = 0;
+        errno_ = 0;
         is_wait_ = false;
         timeout_ = DEFAULT_TASK_TIMEOUT;
     }