Python socket.send() Examples

def __init__(self, port, data, exit_event, quiet=False):
        """
        :param port: Destination port.
        :param data: The data intend to be send in a loop.
        :param exit_event: Exit event.
        :param quiet: If true don't raise event when crash.
        """
        Thread.__init__(self)
        self.port = port
        # FIXME: socket.send(data>>127998) without read blocks thread
        if len(data) > 102400:
            data = data[0:102400]
            logging.error("Data is too long, using only first %d bytes",
                          len(data))
        self.data = data
        self.exitevent = exit_event
        self.idx = 0
        self.quiet = quiet
        self.ret_code = 1    # sets to 0 when finish properly 

def __waitfor_client_register(self):
        self.request.settimeout(5)
        try:
            devicetypetmp=self.request.recv(20)
            self._client_devicetype = devicetypetmp.decode('utf-8')
            _ClientHandler.log_info("Client-ID:{0}; register(); got devicetype:{1}".format(self._myownID,self._client_devicetype))
            #send client-ID to client
            sendtemp=str(self._myownID)
            self.request.sendall(sendtemp.encode("utf-8"))
        except socket.timeout:
            _ClientHandler.log_critical("Client-ID:{0}; Timeout occured, no devicetype was send".format(self._myownID))
            raise
        except socket.error as e:
            # Something else happened, handle error, exit, etc.
            _ClientHandler.log_critical("Client-ID:{0}; error '{1}' on socket.recv or socket.send".format(self._myownID, e))
            raise
        except Exception as e:
            _ClientHandler.log_critical("Client-ID:{0}; unkown error '{1}'".format(self._myownID,e))
            raise
        finally:
            self.request.settimeout(None) 

def run(self):
        _ClientHandler.log_info("csocketsendThread(); socket.send thread start")
        self._tx=None
        while self.__threadrun==True:
            try:
                # get queue-value in blocking mode
                self._tx=self._queue.get(True)
                self._queue.task_done()
            except:
                self.__threadrun=False
                _ClientHandler.log_critical("csocketsendThread();Error on queue.get()")
                raise

            try:
                self._request.sendall(bytes(self._tx))
            except:
                self.__threadrun=False
                _ClientHandler.log_critical("csocketsendThread();Error on socket.send")
                raise

        _ClientHandler.log_info("csocketsendThread(); socket.send thread terminated") 

def __init__(self, port, exit_event, queues, blocklen=1024,
                 migrate_event=None, reduced_set=False):
        """
        :param port: Destination port
        :param exit_event: Exit event
        :param queues: Queues for the control data (FIFOs)
        :param blocklen: Block length
        :param migrate_event: Event indicating port was changed and is ready.
        """
        Thread.__init__(self)
        self.port = port
        self.port.sock.settimeout(1)
        self.queues = queues
        # FIXME: socket.send(data>>127998) without read blocks thread
        if blocklen > 102400:
            blocklen = 102400
            logging.error("Data is too long, using blocklen = %d",
                          blocklen)
        self.blocklen = blocklen
        self.exitevent = exit_event
        self.migrate_event = migrate_event
        self.idx = 0
        self.ret_code = 1    # sets to 0 when finish properly
        self.reduced_set = reduced_set 

def send(self, data):
        """
        Send data via TCP service.

        :param data: data
        :type data: str
        """
        try:
            self.socket.send(data)
            # TODO: rework logging to have LogRecord with extra=direction
            # TODO: separate data sent/received from other log records ?
            self._debug('> {}'.format(data))
        except socket.error as serr:
            if (serr.errno == 10054) or (serr.errno == 10053):
                self._close_ignoring_exceptions()
                info = "{} during send msg '{}'".format(serr.errno, data)
                raise RemoteEndpointDisconnected('Socket error: ' + info)
            else:
                raise 

def write_to_fd(self, data: memoryview) -> int:
        try:
            return self.socket.send(data)  # type: ignore
        except ssl.SSLError as e:
            if e.args[0] == ssl.SSL_ERROR_WANT_WRITE:
                # In Python 3.5+, SSLSocket.send raises a WANT_WRITE error if
                # the socket is not writeable; we need to transform this into
                # an EWOULDBLOCK socket.error or a zero return value,
                # either of which will be recognized by the caller of this
                # method. Prior to Python 3.5, an unwriteable socket would
                # simply return 0 bytes written.
                return 0
            raise
        finally:
            # Avoid keeping to data, which can be a memoryview.
            # See https://github.com/tornadoweb/tornado/pull/2008
            del data 

def testSend(self):
        self.serv.send(MSG) 

def _testRecvIntoArray(self):
        with test_support.check_py3k_warnings():
            buf = buffer(MSG)
        self.serv_conn.send(buf) 

def _testRecvFromIntoArray(self):
        with test_support.check_py3k_warnings():
            buf = buffer(MSG)
        self.serv_conn.send(buf) 

def _testStream(self):
        self.cli.send(MSG)
        self.cli.close() 

def _testRecvIntoArray(self):
        with test_support.check_py3k_warnings():
            buf = buffer(MSG)
        self.serv_conn.send(buf) 

def _testRecv(self):
        self.cli.send(MSG) 

def testSend(self):
        self.serv.send(MSG) 

def send(self, data, flags=0):
            n = self._sock.send(data, flags)
            self.sent.append(data[:n])
            return n 

def testInsideTimeout(self):
        conn, addr = self.serv.accept()
        self.addCleanup(conn.close)
        time.sleep(3)
        conn.send("done!") 

def _testRecvFromIntoSmallBuffer(self):
        with test_support.check_py3k_warnings():
            buf = buffer(MSG)
        self.serv_conn.send(buf) 

def send(s, msg):
            s.send(msg) 

def send_kill_msg(self, socket):
        socket.send(pycompletionserver.MSG_KILL_SERVER)




# Run for jython in command line:
# c:\bin\jython2.7.0\bin\jython.exe -m py.test tests\test_jyserver.py 

def testInsideTimeout(self):
        conn, addr = self.serv.accept()
        self.addCleanup(conn.close)
        time.sleep(3)
        conn.send("done!") 

def _testRecv(self):
        self.cli.connect((HOST, self.port))
        time.sleep(0.1)
        self.cli.send(MSG) 

def write(self, data, callback=None):
        """Write the given data to this stream.

        If ``callback`` is given, we call it when all of the buffered write
        data has been successfully written to the stream. If there was
        previously buffered write data and an old write callback, that
        callback is simply overwritten with this new callback.
        """
        assert isinstance(data, bytes_type)
        self._check_closed()
        # We use bool(_write_buffer) as a proxy for write_buffer_size>0,
        # so never put empty strings in the buffer.
        if data:
            # Break up large contiguous strings before inserting them in the
            # write buffer, so we don't have to recopy the entire thing
            # as we slice off pieces to send to the socket.
            WRITE_BUFFER_CHUNK_SIZE = 128 * 1024
            if len(data) > WRITE_BUFFER_CHUNK_SIZE:
                for i in range(0, len(data), WRITE_BUFFER_CHUNK_SIZE):
                    self._write_buffer.append(data[i:i + WRITE_BUFFER_CHUNK_SIZE])
            else:
                self._write_buffer.append(data)
        self._write_callback = stack_context.wrap(callback)
        if not self._connecting:
            self._handle_write()
            if self._write_buffer:
                self._add_io_state(self.io_loop.WRITE)
            self._maybe_add_error_listener() 

def _testRecv(self):
        self.cli.send(MSG) 

def _testShutdown(self):
        self.serv_conn.send(MSG)
        # Issue 15989
        self.assertRaises(OverflowError, self.serv_conn.shutdown,
                          _testcapi.INT_MAX + 1)
        self.assertRaises(OverflowError, self.serv_conn.shutdown,
                          2 + (_testcapi.UINT_MAX + 1))
        self.serv_conn.shutdown(2) 

def _testDup(self):
        self.serv_conn.send(MSG) 

def _testOverFlowRecvFrom(self):
        self.serv_conn.send(MSG) 

def _testRecvFrom(self):
        self.serv_conn.send(MSG) 

def _testOverFlowRecv(self):
        self.serv_conn.send(MSG) 

def _testRecv(self):
        self.serv_conn.send(MSG) 

def testSendAfterClose(self):
        # testing send() after close() with timeout
        sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(1)
        sock.close()
        self.assertRaises(socket.error, sock.send, "spam") 

def setup_asyncio():
    # get rid of annoying "socket.send() raised exception" log messages
    asyncio.constants.LOG_THRESHOLD_FOR_CONNLOST_WRITES = 100