Пример #1
0
    def read_from(self, src_addr, size=65535, timeout=None):
        ''' Receive at most SIZE bytes of data, that were
            sent from host with address and port SRC_ADDR and SRC_PORT.

            Any incoming data that are not from the specified address
            will be discarded!

            If TIMEOUT is specified, socket will be set to non-blocking
            mode. If no data is received until timeout, the function
            returns None. Otherwise, if TIMEOUT is None, the socket will
            be in blocking mode and will wait for any incoming data.
            Specifying TIMEOUT to 0 will make the function return
            immediately, if there is no incoming data.
            
            @type size: int
            @param size: Size of the buffer used to receive data.
            @type timeout: int
            @param timeout:  Socket timeout.

            @type src_addr: (str, int)
            @param src_addr:  Tuple containing source address and port,
            that we want to receive data from. 

            @return:  Received data, or None if no data is received until
            timeout.
        '''
        try:
            self.s.settimeout(timeout)
            sender = None
            while sender != src_addr:
                (data, sender) = self.s.recvfrom(size)
            return packet.parse(data)

        except socket.timeout:
            return None
Пример #2
0
    def read(self):
        images = packet.parse(self._receive)
        logger.debug('received {} images'.format(len(images)))

        if len(images) == 2:
            (color, cloud) = images
            depth_uv = None
            color_uv = None
        elif len(images) == 3:
            (color, cloud, depth_uv) = images
            color_uv = None
        elif len(images) == 4:
            (color, cloud, depth_uv, color_uv) = images
        else:
            logger.warn('unrecognized number of images from camera')
            raise RuntimeError('unrecognized number of images from camera')
        if cloud is not None:
            cloud[:,:,1] *= -1 # flip y axis
        if depth_uv is not None:
            depth_uv = depth_uv[:,:,::-1]
            depth_uv = unnormalize_uv_map(depth_uv, color.shape)
        if color_uv is not None:
            color_uv = color_uv[:,:,::-1]
            color_uv = unnormalize_uv_map(color_uv, (cloud.shape[0], cloud.shape[1]))
        return (color, cloud, depth_uv, color_uv)
Пример #3
0
 def rxLoop(self):
     while 1:
         pkt = packet.parse(self.socket.recv(self.config.getInt("NetworkBuffer")))
         if self.onRecievePacketFunc!=None:
             self.onRecievePacketFunc(pkt)
         else:
             self.packets.append(pkt)
Пример #4
0
 def __init__(self, parent, connection, addr, logger, taskmanager, config):
     self.parent = parent
     self.connection = connection
     self.address = addr
     self.logger = logger
     self.taskmanager = taskmanager
     self.config = config
     self.name = ""
     self.password = ""
     self.packets = []
     self.running = True
     
     while 1:
         data = self.connection.recv(self.config.getInt("NetworkBuffer"))
         try:    
             pkt = packet.parse(data)
             if pkt["ID"]==packet.PacketID.LOGIN:
                 self.name = pkt["VALUE"][0]
                 self.password = pkt["VALUE"][1]
                 break
         except:
             self.logger.error("Invalid Packet Recieved from "+self.getAddress().getStringAddress()+": "+str(data))
     self.logger.debug("Client Connected with the username '"+self.getName()+"' and the password '"+self.password+"'")
     self.eventhandler = eventhandler.EventHandler(parent, self.name+"-Client", self.logger, self.taskmanager)
     self.taskmanager.addThread(self.getName(), self.rxLoop)
Пример #5
0
    def poll(self):
        if self.serial_port.in_waiting > 0:
            self.pkt_buffer.extend(
                self.serial_port.read(self.serial_port.in_waiting))

        while True:
            if 0 in self.pkt_buffer:
                index = self.pkt_buffer.index(0)
                data = cobs.decode(self.pkt_buffer[0:index])
                del self.pkt_buffer[0:index + 1]

                if data is None or len(data) < 6:
                    self.rx_errs += 1
                    continue

                pkt = packet.parse(data)

                if pkt is not None:
                    if self.raw_log_callback:
                        self.raw_log_callback(0, data)
                    self.rx_pkts += 1
                    return pkt
                else:
                    self.rx_errs += 1

            else:
                return None
Пример #6
0
    def read(self):
        images = packet.parse(self._receive)
        logger.debug('received {} images'.format(len(images)))

        if len(images) == 2:
            (color, cloud) = images
            depth_uv = None
        elif len(images) == 3:
            (color, cloud, depth_uv) = images
        else:
            logger.warn('unrecognized number of images from camera')
            raise RuntimeError('unrecognized number of images from camera')

        return (color, cloud, depth_uv)
def receive(session):
	data = None

	try:
		recvpacket = session.socket.recvfrom(4096)
		
		
		data = recvpacket[0].decode('utf-8')
		addr = recvpacket[1]
		
		log.debug("Packet Received:\n"+data)
	except socket.timeout:
		log.error("Receive Timeout")
		data = None
	if data != None: return packet.parse(data, addr, session)
Пример #8
0
    def read(self):
        images = packet.parse(self._receive)
        logger.debug('received {} images'.format(len(images)))

        if len(images) == 2:
            (color, cloud) = images
            depth_uv = None
        elif len(images) == 3:
            (color, cloud, depth_uv) = images
        elif len(images) == 4:
            (color, cloud, depth_uv, inverse_uv) = images
        else:
            logger.warn('unrecognized number of images from camera')
            raise RuntimeError('unrecognized number of images from camera')

        return (color, cloud, depth_uv, inverse_uv)
Пример #9
0
    def receive(self):
        xbpkt = self.xbif.receive()

        if xbpkt is None or not isinstance(xbpkt, xbee.RxPacket):
            return None

        self.rssi = -xbpkt.rssi

        pkt = packet.parse(xbpkt.data)

        if pkt is not None:
            self.rx_pkts += 1
            return pkt
        else:
            self.rx_errs += 1

        return None
Пример #10
0
    def poll(self):
        while True:
            xbpkt = self.xbif.poll()

            if xbpkt is None:
                return None

            if not isinstance(xbpkt, xbee.RxPacket):
                continue

            self.rssi = -xbpkt.rssi

            pkt = packet.parse(xbpkt.data)

            if pkt is not None:
                self.rx_pkts += 1
                return pkt
            else:
                self.rx_errs += 1
Пример #11
0
 def rxLoop(self):
     while self.running:
         pkt = {"ID": None, "VALUE": None}
         data = ""
         try:
             try:                
                 #data = self.connection.recv(self.config.getInt("NetworkBuffer"))
                 while data != "[":
                     data = self.connection.recv(1)
                 rx = ""
                 while rx != "]":
                     rx = self.connection.recv(1)
                     data = data + rx                
                 if self.config.getBoolean("DebugMode"):
                     self.logger.debug("Received Packet from the client "+self.getName()+": "+data)    
                 try:
                         pkt = packet.parse(data)
                 except:
                     self.logger.error("Packet Parsing Failure.")
                     self.send(packet.PacketID.INVALID_PACKET_SYNTAX, None)
             except:
                 if not self.send(packet.PacketID.PING, None):
                     self.logger.error("Packet Reception Failure.")
                     self.logger.debug("'"+self.getName()+"' Disconnected.")
                     self.parent.disconnectClient(self.getName())
                     break
             
             if pkt["ID"]==packet.PacketID.DISCONNECT:
                 self.logger.debug("'"+self.getName()+"' Disconnected.")
                 self.parent.disconnectClient(self.getName())
                 break
             elif pkt["ID"]==packet.PacketID.PING:
                 self.send(packet.PacketID.PING, None)
             else:
                 event = events.OnPacketRecieved(pkt)
                 self.eventhandler.callEvents(events.EventType.ON_PACKET_RECEIVED, event)
                 
         except:
             self.logger.printErrorStack()
Пример #12
0
    def read(self, size=65535, timeout=None):
        ''' Receive data from the network socket.

            If TIMEOUT is specified, socket will be set to non-blocking
            mode. If no data is received until timeout, the function
            returns None. Otherwise, if TIMEOUT is None, the socket will
            be in blocking mode and will wait for any incoming data.
            Specifying TIMEOUT to 0 will make the function return
            immediately, if there is no incoming data.
            
            @type size: int
            @param size:  Size of the buffer used to receive data.
            @type timeout: int
            @param timeout:  Socket timeout.
            @return:  Tuple containing received data and sender address,
            or None if no data is received until timeout.
        '''
        try:
            self.s.settimeout(timeout)
            (data, sender) = self.s.recvfrom(size)
            p = packet.parse(data)
            return (p, sender)
        except socket.timeout:
            return None
Пример #13
0
 def receive(self):
     data = self.socket.recvfrom(1500)[0]
     if self.raw_log_callback:
         self.raw_log_callback(0, data)
     return packet.parse(data)