Mercurial > MadButterfly

annotate pyink/data_monitor.py @ 1383:bdacbdeb4447

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Fix the typo
author wycc
date Wed, 23 Mar 2011 23:11:33 +0800
parents cfbc0f3e54e3
children
rev   line source
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
1 import os
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
2
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
3 ## \brief Monitor accessing on the dta model.
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
4 #
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
5 # This class is a meta-class that monitor data accessing for its instance
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
6 # classes.
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
7 #
1254
0cb5979549be Add more doc for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1253
diff changeset
8 # It is a monitor with a small modification. The calling would be
0cb5979549be Add more doc for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1253
diff changeset
9 # rejected when the domview_ui was locked. It will not waiting for a
0cb5979549be Add more doc for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1253
diff changeset
10 # lock.
0cb5979549be Add more doc for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1253
diff changeset
11 #
0cb5979549be Add more doc for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1253
diff changeset
12 # \see http://en.wikipedia.org/wiki/Monitor_%28synchronization%29
0cb5979549be Add more doc for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1253
diff changeset
13 #
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
14 # All methods, of instance classes, who's name is prefixed with 'do' are
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
15 # monitored. When a monitored method was called, monitor will try to lock
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
16 # _domview of the object. The method is only called if successfully acquiring
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
17 # the lock, or return immediately. The lock is released after the calling
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
18 # returned.
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
19 #
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
20 class data_monitor(type):
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
21 def __new__(mclazz, name, bases, clazz_dict):
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
22 debug_level = 0
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
23 if os.environ.has_key('DATA_MONITOR_DBG'):
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
24 debug_level = int(os.environ['DATA_MONITOR_DBG'])
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
25 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
26
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
27 def gen_sentinel(func_name, func):
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
28 def sentinel(self, *args, **kws):
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
29 if debug_level >= 1:
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
30 print 'calling %s.%s' % (name, func_name)
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
31 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
32 if debug_level >= 2:
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
33 print ' args: %s' % (repr(args))
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
34 print ' kws: %s' % (repr(kws))
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
35 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
36
1265
ca301f6abef7 Support undo for insert key frame/rm keyframe. We will refresh all layers and scenes since it is not feasible to collect these changes and update the layers and scenes. We may scan two level only in the future to improve the performance.
wycc
parents: 1254
diff changeset
37 if not self._locker.lock(): # can not lock
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
38 if debug_level >= 1:
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
39 print ' fault to lock'
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
40 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
41 return
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
42
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
43 try:
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
44 func(self, *args, **kws)
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
45 finally:
1265
ca301f6abef7 Support undo for insert key frame/rm keyframe. We will refresh all layers and scenes since it is not feasible to collect these changes and update the layers and scenes. We may scan two level only in the future to improve the performance.
wycc
parents: 1254
diff changeset
46 self._locker.unlock()
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
47 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
48 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
49 return sentinel
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
50
1307
cfbc0f3e54e3 Add supporting for programmer defined prefix for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1265
diff changeset
51 monitor_prefix = 'do'
cfbc0f3e54e3 Add supporting for programmer defined prefix for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1265
diff changeset
52 if clazz_dict.has_key('__data_monitor_prefix__'):
cfbc0f3e54e3 Add supporting for programmer defined prefix for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1265
diff changeset
53 monitor_prefix = clazz_dict['__data_monitor_prefix__']
cfbc0f3e54e3 Add supporting for programmer defined prefix for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1265
diff changeset
54 pass
cfbc0f3e54e3 Add supporting for programmer defined prefix for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1265
diff changeset
55
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
56 for attr_name in clazz_dict:
1307
cfbc0f3e54e3 Add supporting for programmer defined prefix for data_monitor
Thinker K.F. Li <thinker@codemud.net>
parents: 1265
diff changeset
57 if (not attr_name.startswith(monitor_prefix)) or \
1253
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
58 (not callable(clazz_dict[attr_name])):
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
59 continue
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
60 clazz_dict[attr_name] = \
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
61 gen_sentinel(attr_name, clazz_dict[attr_name])
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
62 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
63
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
64 clazz = type.__new__(mclazz, name, bases, clazz_dict)
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
65
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
66 return clazz
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
67 pass
07e0cb1e051d Add class consistency_checker for domview_ui.
Thinker K.F. Li <thinker@codemud.net>
parents:
diff changeset
68