class UdpServer(QObject):
datagram = pyqtSignal(str)
def __init__(self, host):
super().__init__()
self._sock = QUdpSocket()
self._host = host
self._log = logging.getLogger("udp")
self._sock.readyRead.connect(self.recv)
bind(self._sock)
def set_host(self, host):
self._host = host
@pyqtSlot(str)
def try_connect(self, port):
self._sock.disconnectFromHost()
if self._sock.state() != QAbstractSocket.UnconnectedState:
self._sock.waitForDisconnected()
port = int(port)
msg = "connecting to ({}:{})"
msg = msg.format(self._host.toString(), port)
self._log.debug(msg)
self._sock.connectToHost(self._host, port)
self._sock.write("_:start\n")
def recv(self):
while self._sock.hasPendingDatagrams():
data = self._sock.readDatagram(BUFFER_SIZE)
data = data[0]
message = data.decode()
for line in message.split("\n"):
if line == "":
continue
self.datagram.emit(line)
class UdpServer(QObject):
datagram = pyqtSignal(str)
def __init__(self, host):
super().__init__()
self._sock = QUdpSocket()
self._host = host
self._log = logging.getLogger('udp')
self._sock.readyRead.connect(self.recv)
bind(self._sock)
def set_host(self, host):
self._host = host
@pyqtSlot(str)
def try_connect(self, port):
self._sock.disconnectFromHost()
if self._sock.state() != QAbstractSocket.UnconnectedState:
self._sock.waitForDisconnected()
port = int(port)
msg = 'connecting to ({}:{})'
msg = msg.format(self._host.toString(), port)
self._log.debug(msg)
self._sock.connectToHost(self._host, port)
self._sock.write('_:start\n')
def recv(self):
while self._sock.hasPendingDatagrams():
data = self._sock.readDatagram(BUFFER_SIZE)
data = data[0]
message = data.decode()
for line in message.split('\n'):
if line == '':
continue
self.datagram.emit(line)
class UdpDevice(DataDevice):
'''
Implementation of a UDP server socket
'''
readyRead = pyqtSignal()
def __init__(self, params={}, parent=None):
'''
Constructor
'''
super(UdpDevice, self).__init__(params, parent)
self.iodevice = QUdpSocket()
self.reconnect = int(params.get('Reconnect', 1000))
self.host = params.get('Host', None)
self.port = int(params.get('Port', 2000))
self.iodevice.readyRead.connect(self.readyRead)
self.buffer = list()
def connectDevice(self):
result = False
if self.host is None:
result = self.iodevice.bind(self.port)
else:
ha = QHostAddress(self.host)
result = self.iodevice.bind(ha, self.port)
if result is False:
if self.reconnect > 0:
QTimer.singleShot(self.reconnect, self.onReconnectTimer)
else:
self.deviceConnected.emit(True)
def disconnectDevice(self):
if self.iodevice.state() is QAbstractSocket.BoundState:
self.iodevice.disconnectFromHost()
self.deviceDisconnected.emit(True)
def readData(self):
(data, ha, port) = self.iodevice.readDatagram(
self.iodevice.pendingDatagramSize())
self.remoteHost = ha.toString()
self.remotePort = port
return data
def readLine(self):
if self.iodevice.hasPendingDatagrams():
self.buffer.extend(self.readData())
try:
i = self.buffer.index('\n')
data = self.buffer[0:i]
del self.buffer[0:i + 1]
return ''.join(data)
except ValueError:
return ''
class UdpDevice(DataDevice):
'''
Implementation of a UDP server socket
'''
readyRead = pyqtSignal()
def __init__(self, params={}, parent=None):
'''
Constructor
'''
super(UdpDevice, self).__init__(params, parent)
self.iodevice = QUdpSocket()
self.reconnect = int(params.get('Reconnect', 1000))
self.host = params.get('Host', None)
self.port = int(params.get('Port', 2000))
self.iodevice.readyRead.connect(self.readyRead)
self.buffer = list()
def connectDevice(self):
result = False
if self.host is None:
result = self.iodevice.bind(self.port)
else:
ha = QHostAddress(self.host)
result = self.iodevice.bind(ha, self.port)
if result is False:
if self.reconnect > 0:
QTimer.singleShot(self.reconnect, self.onReconnectTimer)
else:
self.deviceConnected.emit(True)
def disconnectDevice(self):
if self.iodevice.state() is QAbstractSocket.BoundState:
self.iodevice.disconnectFromHost()
self.deviceDisconnected.emit(True)
def readData(self):
(data, ha, port) = self.iodevice.readDatagram(self.iodevice.pendingDatagramSize())
self.remoteHost = ha.toString()
self.remotePort = port
return data
def readLine(self):
if self.iodevice.hasPendingDatagrams():
self.buffer.extend(self.readData())
try:
i = self.buffer.index('\n')
data = self.buffer[0:i]
del self.buffer[0:i + 1]
return ''.join(data)
except ValueError:
return ''
