56 lines
1.7 KiB
Python
56 lines
1.7 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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import socket
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import pickle
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HOST = "localhost"
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PORT = 8000
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class RPCClient(object):
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def __init__(self, host, port):
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self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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self.socket.connect((host, port))
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self.rfile = self.socket.makefile('rb')
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self.wfile = self.socket.makefile('wb')
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self.in_channel = pickle.Unpickler(self.rfile)
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self.out_channel = pickle.Pickler(self.wfile, protocol=2)
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def _close(self):
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self.socket.close()
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self.rfile.close()
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self.wfile.close()
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# Make calling remote methods easy by overriding attribute access.
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# Accessing any attribute on our instances will give a proxy method that
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# calls the method with the same name on the remote machine.
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def __getattr__(self, name):
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def proxy(*args, **kwargs):
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self.out_channel.dump((name, args, kwargs))
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self.wfile.flush() # to make sure the server won't wait forever
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status, result = self.in_channel.load()
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if status == 'OK':
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return result
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else:
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raise result
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return proxy
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if __name__ == '__main__':
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# connect to server and send data
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rpcclient = RPCClient(HOST, PORT)
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print 'Testing the echo() method:'
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print rpcclient.echo('Hello world!')
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print
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print 'Calculating 42/2 on the remote machine:'
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print rpcclient.div(42, 2)
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print
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print 'is_computer_on on the remote machine returns:'
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print rpcclient.is_computer_on()
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print
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print 'Testing keyword args:'
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print '42/2 is:', rpcclient.div(divisor=2, dividend=42)
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rpcclient._close()
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del rpcclient
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