修改返回值

backend/SystemUpdater/UpgradeStrategiesDbus.py

@@ -46,6 +46,11 @@ class UpgradeStrategiesDbusController(dbus.service.Object):
     """ this is a helper to provide the UpdateManagerIFace """
 
     P2P_DEDAULT_PATH = "/etc/default/apt-p2p"
+    RETURN_SUCCESS_CODE = 0
+    RETURN_SUCCESS_DESC = ""
+
+    RETURN_UNKNOWN_CODE = -1
+    RETURN_UNKNOWN_DESC = ""
 
     def __init__(self, parent, bus_name,
                 object_path=UPDATER_DBUS_PATH):
@@ -74,7 +79,7 @@ class UpgradeStrategiesDbusController(dbus.service.Object):
         logging.debug("Exit")
 
     ## dbus接口: 开启或关闭预下载功能
-    @dbus.service.method(UPDATER_DBUS_INTERFACE, in_signature='s', out_signature='b',sender_keyword='sender')
+    @dbus.service.method(UPDATER_DBUS_INTERFACE, in_signature='s', out_signature='is',sender_keyword='sender')
     def ChangingP2PStatus(self,_status,sender = None):
         status = str(_status)
         sender_name = get_proc_from_dbus_name(sender)
@@ -95,10 +100,10 @@ class UpgradeStrategiesDbusController(dbus.service.Object):
             logging.info(str(p.stdout))
             if p.returncode == 0:
                 logging.info("Execute successfully")
-                return True
+                return self.RETURN_SUCCESS_CODE,self.RETURN_SUCCESS_DESC
             else:
                 logging.info("Failed to execute reboot")
-                return False
+                return self.RETURN_UNKNOWN_CODE,str(p.stdout)
         else:
             logging.waring("apt-p2p function is not install...")