實時散景插座蟒

我想了解如何使用散景服務器來顯示使用套接字的實時情節。到目前爲止，我創建了兩個文件運行到兩個單獨的窗口中，以模擬要發送的數據流。實時散景插座蟒

我有發送包含3個元素的陣列的client.py：

import sys 
import time 
import socket 
from pylab import randn 


# Create a TCP/IP socket 
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 

# Connect the socket to the port where the server is listening 
server_address = ('localhost', 2000) 
sock.connect(server_address) 

try: 
    for i in xrange(100): 
     m = randn(3) 
     message = m.tostring() 
     print >>sys.stderr, 'sending "%s"' % m 
     sock.sendall(message) 
     time.sleep(0.01) 

finally: 
    print >>sys.stderr, 'closing socket' 
    sock.close()

我還接收數據，並更新在背景虛化服務器的情節一個server.py。

import sys 
import time 
import socket 
from pylab import * 
from bokeh.plotting import cursession, figure, show, output_server 


output_server("raw_values") 

# Visualization workflow 
counter = 0 
rx = [0] 
ry = [0] 
rz = [0] 
p = figure() 
x = [0] 
p.line(x, rx, name='raw_mx') 

# Create a TCP/IP socket 
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 

# Bind the socket to the port 
server_address = ('localhost', 2000) 
print >>sys.stderr, 'starting up on %s port %s' % server_address 
sock.bind(server_address) 

# Listen for incoming connections 
sock.listen(1) 

renderer = p.select(dict(name="raw_mx")) 
ds = renderer[0].data_source 

show(p) 

while True: 
    # Wait for a connection 
    print >>sys.stderr, 'waiting for a connection' 
    connection, client_address = sock.accept() 

    try: 
     print >>sys.stderr, 'connection from', client_address 

     while True: 
      data = fromstring(connection.recv(24)) 
      print data 

      if len(data) == 0: 
       break 

      rx += [data[0]] 
      ry += [data[1]] 
      rz += [data[2]] 
      x += [counter] 
      counter += 1 

      ds.data["x"] = x 
      ds.data["rmag_x"] = rx 
      cursession().store_objects(ds) 
      time.sleep(0.01) 


    finally: 
     # Clean up the connection 
     connection.close()

我確認我有散景服務器運行。我收到以下錯誤。通過故障排除，我相信這個錯誤發生在某種程度上，由於show(p)就好像我評論那條線沒有錯誤，數據被髮送和接收。但是，由於show(p)不存在，因此圖不會更新。

-------------------------------------------------------------------------- 
error          Traceback (most recent call last) 
/home/user/Documents/server.py in <module>() 
    36  # Wait for a connection 
    37  print >>sys.stderr, 'waiting for a connection' 
---> 38  connection, client_address = sock.accept() 
    39 
    40  try: 

/home/user/anaconda/lib/python2.7/socket.pyc in accept(self) 
    204 
    205  def accept(self): 
--> 206   sock, addr = self._sock.accept() 
    207   return _socketobject(_sock=sock), addr 
    208  accept.__doc__ = _realsocket.accept.__doc__ 

error: [Errno 4] Interrupted system call 

In [38]: 
(process:13045): GLib-CRITICAL **: g_slice_set_config: assertion 'sys_page_size == 0' failed

來源

2015-10-20 dudas

錯誤是由於某些網絡設置錯誤配置導致服務器無法正常工作。代碼現在工作很好。

來源

2015-10-22 07:40:48 dudas

實時散景插座蟒

回答

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