1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
#!/usr/bin/env python
# **********************************************************************
#
# Copyright (c) 2003-2011 ZeroC, Inc. All rights reserved.
#
# This copy of Ice is licensed to you under the terms described in the
# ICE_LICENSE file included in this distribution.
#
# **********************************************************************
import sys, os, traceback, threading, Ice
Ice.loadSlice('Hello.ice')
import Demo
class CallbackEntry(object):
def __init__(self, cb, delay):
self.cb = cb
self.delay = delay
class WorkQueue(threading.Thread):
def __init__(self):
threading.Thread.__init__(self)
self._callbacks = []
self._done = False
self._cond = threading.Condition()
def run(self):
self._cond.acquire()
try:
while not self._done:
if len(self._callbacks) == 0:
self._cond.wait()
if not len(self._callbacks) == 0:
self._cond.wait(self._callbacks[0].delay / 1000.0)
if not self._done:
print "Belated Hello World!"
self._callbacks[0].cb.ice_response()
del self._callbacks[0]
for i in range(0, len(self._callbacks)):
self._callbacks[i].cb.ice_exception(Demo.RequestCanceledException())
finally:
self._cond.release()
def add(self, cb, delay):
self._cond.acquire()
try:
if not self._done:
entry = CallbackEntry(cb, delay)
if len(self._callbacks) == 0:
self._cond.notify()
self._callbacks.append(entry)
else:
cb.ice_exception(Demo.RequestCanceledException())
finally:
self._cond.release()
def destroy(self):
self._cond.acquire()
try:
self._done = True
self._cond.notify()
finally:
self._cond.release()
class HelloI(Demo.Hello):
def __init__(self, workQueue):
self._workQueue = workQueue
def sayHello_async(self, cb, delay, current=None):
if delay == 0:
print "Hello World!"
cb.ice_response()
else:
self._workQueue.add(cb, delay)
def shutdown(self, current=None):
self._workQueue.destroy()
current.adapter.getCommunicator().shutdown();
class Server(Ice.Application):
def run(self, args):
if len(args) > 1:
print self.appName() + ": too many arguments"
return 1
self.callbackOnInterrupt()
adapter = self.communicator().createObjectAdapter("Hello")
self._workQueue = WorkQueue()
adapter.add(HelloI(self._workQueue), self.communicator().stringToIdentity("hello"))
self._workQueue.start()
adapter.activate()
self.communicator().waitForShutdown()
self._workQueue.join()
return 0
def interruptCallback(self, sig):
self._workQueue.destroy()
self._communicator.shutdown()
app = Server()
sys.exit(app.main(sys.argv, "config.server"))
|
