fix thread overload while waiting for uds response

Author: Florian Geyer

uds/uds_communications/TransportProtocols/Can/CanConnection.py

@@ -22,7 +22,7 @@ def __init__(self, callback, filter, bus, is_external=False):
         self.__is_external = is_external
         listener = can.Listener()
         listener.on_message_received = callback
-        self.__notifier = can.Notifier(self.__bus, [listener], 0)
+        self.__notifier = can.Notifier(self.__bus, [listener], 1.0)
         self.__listeners = [listener]
         self.addFilter(filter)
 

uds/uds_communications/TransportProtocols/Can/CanConnectionFactory.py

@@ -84,7 +84,7 @@ def __call__(callback=None, filter=None, configPath=None, **kwargs):
                 if CanConnectionFactory.bus:
                     CanConnectionFactory.connections[connectionKey] = CanConnection(callback, filter, CanConnectionFactory.bus, True)
                 else:
-                    serial = None;
+                    serial = None
                     if 'serial' in CanConnectionFactory.config['vector']:
                         if str(CanConnectionFactory.config['vector']['serial']).upper() == "AUTO":
                             serial = CanConnectionFactory.detectVectorSerial()

uds/uds_communications/TransportProtocols/Can/CanTp.py

@@ -359,6 +359,8 @@ def decode_isotp(self, timeout_s=1, received_data=None, use_external_snd_rcv_fun
                         timeoutTimer.restart()
                     else:
                         raise Exception("Unexpected PDU received")
+            else:
+                sleep(0.01)
 
             if state == CanTpState.SEND_FLOW_CONTROL:
                 txPdu[N_PCI_INDEX] = 0x30