Mercurial > cosocket

annotate channels.py @ 50:f78b986ecb6e

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author Atul Varma <varmaa@toolness.com>
date Tue, 28 Apr 2009 19:08:16 +0000
parents 425776983cf2
children b0f802c4fafc
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425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
diff changeset
1 import cosocket
16
4b3a30d863cc Added some TODOs.
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2
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65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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3 _channels = {}
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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4
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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5 class until_message_sent(object):
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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6 def __init__(self, channel_name, message):
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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7 self.channel_name = channel_name
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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8 self.message = message
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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10 def execute(self, dispatcher):
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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11 if self.channel_name in _channels:
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425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
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parents: 21
diff changeset
12 receivers = _channels[self.channel_name].values()
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dc3dce13dd3b Fixed memory leak in channels.py, I think.
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13 del _channels[self.channel_name]
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425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
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parents: 21
diff changeset
14 for receiver in receivers:
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
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parents: 21
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15 receiver.continue_from_yield(self.message)
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b77e679ce993 Renamed return_from_yield() to continue_from_yield().
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16 dispatcher.continue_from_yield()
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65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
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parents: 21
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18 class _until_message_received(object):
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65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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19 def __init__(self, channel_name):
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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20 self.channel_name = channel_name
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425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
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21 self._fd = None
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65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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22
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
Atul Varma <varmaa@toolness.com>
parents:
diff changeset
23 def execute(self, dispatcher):
65482f4e2555 Added a really simple channel communication system, somewhat similar to that of Stackless.
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24 if self.channel_name not in _channels:
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425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
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25 _channels[self.channel_name] = {}
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
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parents: 21
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26 self._fd = dispatcher.socket.fileno()
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
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parents: 21
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27 _channels[self.channel_name][self._fd] = dispatcher
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
diff changeset
28
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
diff changeset
29 def abort(self):
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
diff changeset
30 if (self.channel_name in _channels and
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
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31 self._fd in _channels[self.channel_name]):
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
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32 del _channels[self.channel_name][self._fd]
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
diff changeset
33
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
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34 def until_message_received(channel_name):
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
diff changeset
35 instruction = _until_message_received(channel_name)
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
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36 try:
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
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37 message = yield instruction
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
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38 yield cosocket.return_value(message)
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
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39 except GeneratorExit:
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
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40 instruction.abort()
425776983cf2 Removed the weakref mechanism from channels.py and instead turned until_message_received() into a generator rather than an object. Added a return_value() instruction to cosocket.
Atul Varma <varmaa@toolness.com>
parents: 21
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41 raise