Mercurial > cpython-lru_cache-weakref

annotate Demo/rpc/rnusersclient.py @ 5817:48b94de85bf3 legacy-trunk

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Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
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1 # Remote nusers client interface
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2
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3 import rpc
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4 from rpc import Packer, Unpacker, UDPClient, BroadcastUDPClient
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5
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6
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7 class RnusersPacker(Packer):
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8 def pack_utmp(self, ui):
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9 ut_line, ut_name, ut_host, ut_time = utmp
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10 self.pack_string(ut_line)
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11 self.pack_string(ut_name)
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12 self.pack_string(ut_host)
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13 self.pack_int(ut_time)
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14 def pack_utmpidle(self, ui):
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15 ui_itmp, ui_idle = ui
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16 self.pack_utmp(ui_utmp)
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17 self.pack_uint(ui_idle)
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18 def pack_utmpidlearr(self, list):
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19 self.pack_array(list, self.pack_itmpidle)
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20
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21
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22 class RnusersUnpacker(Unpacker):
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23 def unpack_utmp(self):
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24 ut_line = self.unpack_string()
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25 ut_name = self.unpack_string()
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26 ut_host = self.unpack_string()
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27 ut_time = self.unpack_int()
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28 return ut_line, ut_name, ut_host, ut_time
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29 def unpack_utmpidle(self):
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30 ui_utmp = self.unpack_utmp()
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31 ui_idle = self.unpack_uint()
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32 return ui_utmp, ui_idle
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33 def unpack_utmpidlearr(self):
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34 return self.unpack_array(self.unpack_utmpidle)
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35
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36
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37 class PartialRnusersClient:
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38
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39 def addpackers(self):
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40 self.packer = RnusersPacker()
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41 self.unpacker = RnusersUnpacker('')
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42
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43 def Num(self):
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44 return self.make_call(1, None, None, self.unpacker.unpack_int)
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45
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46 def Names(self):
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47 return self.make_call(2, None, \
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48 None, self.unpacker.unpack_utmpidlearr)
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49
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50 def Allnames(self):
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51 return self.make_call(3, None, \
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52 None, self.unpacker.unpack_utmpidlearr)
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53
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54
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55 class RnusersClient(PartialRnusersClient, UDPClient):
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56
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57 def __init__(self, host):
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58 UDPClient.__init__(self, host, 100002, 2)
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59
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60
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61 class BroadcastRnusersClient(PartialRnusersClient, BroadcastUDPClient):
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62
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63 def __init__(self, bcastaddr):
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64 BroadcastUDPClient.__init__(self, bcastaddr, 100002, 2)
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65
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66
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67 def test():
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68 import sys
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69 if not sys.argv[1:]:
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70 testbcast()
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71 return
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72 else:
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73 host = sys.argv[1]
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74 c = RnusersClient(host)
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75 list = c.Names()
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76 for (line, name, host, time), idle in list:
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77 line = strip0(line)
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78 name = strip0(name)
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79 host = strip0(host)
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80 print `name`, `host`, `line`, time, idle
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81
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82 def testbcast():
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83 c = BroadcastRnusersClient('<broadcast>')
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84 def listit(list, fromaddr):
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85 host, port = fromaddr
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86 print host + '\t:',
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87 for (line, name, host, time), idle in list:
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88 print strip0(name),
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89 print
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90 c.set_reply_handler(listit)
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91 all = c.Names()
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92 print 'Total Count:', len(all)
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93
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94 def strip0(s):
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95 while s and s[-1] == '\0': s = s[:-1]
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96 return s
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97
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98 test()