def waitForPacket(self, packetType, subSystem, command, timeout=3):
packet = None
currentTime = time.time()
while not packet or \
(not packet.isPacketValid(packetType, subSystem, command) and
not packet.isPacketError()):
if time.time() - currentTime > timeout:
raise TimeoutError
try:
bytes = self.device.receivePacket()
if bytes:
packet = NebResponsePacket(bytes)
else:
packet = None
except NotImplementedError as e:
logging.error("Dropped bad packet.")
packet = None
continue
except InvalidPacketFormatError as e:
logging.error("InvalidPacketFormatError")
packet = None
continue
except CRCError as e:
logging.error("CRCError : " + str(e))
packet = None
continue
except KeyError as e:
logging.error(
"Tried creating a packet with an invalid subsystem or command : "
+ str(e))
packet = None
continue
except TimeoutError as e:
logging.error('Read timed out.')
return NebResponsePacket.createEmptyResponsePacket(
subSystem, command)
except KeyboardInterrupt as e:
logging.error("KeyboardInterrupt.")
return NebResponsePacket.createEmptyResponsePacket(
subSystem, command)
except:
packet = None
logging.error("Unexpected error : ", exc_info=True)
return NebResponsePacket.createEmptyResponsePacket(
subSystem, command)
return packet
def waitForPacket(self, packetType, subSystem, command, timeout=3):
packet = None
currentTime = time.time()
while not packet or \
(not packet.isPacketValid(packetType, subSystem, command) and
not packet.isPacketError()):
if time.time() - currentTime > timeout:
raise TimeoutError
try:
bytes = self.device.receivePacket()
if bytes:
packet = NebResponsePacket(bytes)
else:
packet = None
except NotImplementedError as e:
logging.error("Dropped bad packet.")
packet = None
continue
except InvalidPacketFormatError as e:
logging.error("InvalidPacketFormatError")
packet = None
continue
except CRCError as e:
logging.error("CRCError : " + str(e))
packet = None
continue
except KeyError as e:
logging.error("Tried creating a packet with an invalid subsystem or command : " + str(e))
packet = None
continue
except TimeoutError as e:
logging.error('Read timed out.')
return NebResponsePacket.createEmptyResponsePacket(subSystem, command)
except KeyboardInterrupt as e:
logging.error("KeyboardInterrupt.")
return NebResponsePacket.createEmptyResponsePacket(subSystem, command)
except:
packet = None
logging.error("Unexpected error : ", exc_info=True)
return NebResponsePacket.createEmptyResponsePacket(subSystem, command)
return packet