gui: Fix a bug which GUI may recv two msgs at once

pykirdy/driver/kirdy_async.py

@@ -654,7 +654,7 @@ class Kirdy:
         self._reader = None
         self._writer = None
 
-    async def _read_response(self, buffer_size=16384):
+    async def _read_response(self, buffer_size=16384, report=False):
         """
             Decode newline delimited Json objects and return the latest json received inside the buffer.
                 - buffer_size: Integer
@@ -663,16 +663,21 @@ class Kirdy:
             raw_response = await asyncio.wait_for(self._reader.read(buffer_size), self.timeout)
 
             response = raw_response.decode('utf-8', errors='ignore').split("\n")
-            print()
-            print(response)
+            items = []
             for item in reversed(response):
                 try:
-                    return json.loads(item)
+                    items.append(json.loads(item))
                 except json.decoder.JSONDecodeError as e:
                     pass
-            return { "msg_type": "Exception"}
+            if len(items) > 0 :
+                if report:
+                    return items[0]
+                else:    
+                    return items
+            else:
+                return { "msg_type": "EmptyResponse"}
         except TimeoutError:
-            return { "msg_type": "Exception"}
+            return { "msg_type": "RecvTimeout"}
 
     async def _send_raw_cmd_handler(self, cmd, lock=True, msg_type="Acknowledge"):
         if lock:
@@ -689,7 +694,8 @@ class Kirdy:
             try:
                 self._writer.write(bytes(json.dumps(cmd), "UTF-8"))
                 await self._writer.drain()
-                response = await self._read_response()
+                responses = await self._read_response()
+                for response in responses:
                     if response["msg_type"] == msg_type:
                         return response
                     if response["msg_type"] == "InvalidCmd":
@@ -737,8 +743,8 @@ class Kirdy:
             try:
                 self._writer.write(bytes(json.dumps(cmd_dict), "UTF-8"))
                 await self._writer.drain()
-                response = await self._read_response()
-                print(f'retry attempts: {retry} msg_type: {msg_type}')
+                responses = await self._read_response()
+                for response in responses:
                     if response["msg_type"] == msg_type:
                         return response
                 retry += 1
@@ -761,7 +767,7 @@ class Kirdy:
         while self._report_mode_on:
             await asyncio.sleep(report_interval)
             async with self._cmd_lock:
-                yield await self._read_response(buffer_size)
+                yield await self._read_response(buffer_size, report=True)
 
         await self.device.set_active_report_mode(False)