Merge "Add support to the HFP client to extract callback response using gRPC streams." (d6bc76c9) · Commits · e / os / android_packages_modules_Bluetooth

system/blueberry/tests/topshim/lib/hfp_client.py

+28 −4

Original line number	Diff line number	Diff line
		@@ -33,10 +33,12 @@ class HfpClient(AsyncClosable):
		__task_list = []
		__channel = None
		__hfp_stub = None
		__hfp_event_stream = None

		def __init__(self, port=8999):
		self.__channel = grpc.aio.insecure_channel("localhost:%d" % port)
		self.__hfp_stub = facade_pb2_grpc.HfpServiceStub(self.__channel)
		self.__hfp_event_stream = self.__hfp_stub.FetchEvents(facade_pb2.FetchEventsRequest())

		async def close(self):
		"""
		@@ -64,8 +66,7 @@ class HfpClient(AsyncClosable):
		"""
		"""
		await self.__hfp_stub.ConnectAudio(
		facade_pb2.ConnectAudioRequest(
		connection=facade_pb2.Connection(cookie=address.encode()),
		facade_pb2.ConnectAudioRequest(connection=facade_pb2.Connection(cookie=address.encode()),
		is_sco_offload_enabled=is_sco_offload_enabled,
		force_cvsd=force_cvsd))

		@@ -80,3 +81,26 @@ class HfpClient(AsyncClosable):
		"""
		await self.__hfp_stub.DisconnectAudio(
		facade_pb2.DisconnectAudioRequest(connection=facade_pb2.Connection(cookie=address.encode()), volume=volume))

		async def __get_next_event(self, event, future):
		"""Get the future of next event from the stream"""
		while True:
		e = await self.__hfp_event_stream.read()

		# Match event by some condition.
		if e.event_type == event:
		future.set_result(e.data)
		break
		else:
		print("Got '%s'; expecting '%s'" % (e.event_type, event))
		print(e)

		async def _listen_for_event(self, event):
		"""Start fetching events"""
		future = asyncio.get_running_loop().create_future()
		self.__task_list.append(asyncio.get_running_loop().create_task(self.__get_next_event(event, future)))
		try:
		await asyncio.wait_for(future, HfpClient.DEFAULT_TIMEOUT)
		except:
		print("Failed to get event", event)
		return future