69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
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# -*- Mode: Python; tab-width: 4 -*-
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#
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# This module, and the timer.pyd core timer support, were written by
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# Sam Rushing (rushing@nightmare.com)
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import timer
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import time
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# Timers are based on Windows messages. So we need
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# to do the event-loop thing!
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import win32event, win32gui
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# glork holds a simple counter for us.
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class glork:
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def __init__ (self, delay=1000, max=10):
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self.x = 0
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self.max = max
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self.id = timer.set_timer (delay, self.increment)
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# Could use the threading module, but this is
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# a win32 extension test after all! :-)
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self.event = win32event.CreateEvent(None, 0, 0, None)
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def increment (self, id, time):
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print('x = %d' % self.x)
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self.x = self.x + 1
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# if we've reached the max count,
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# kill off the timer.
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if self.x > self.max:
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# we could have used 'self.id' here, too
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timer.kill_timer (id)
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win32event.SetEvent(self.event)
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# create a counter that will count from '1' thru '10', incrementing
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# once a second, and then stop.
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def demo (delay=1000, stop=10):
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g = glork(delay, stop)
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# Timers are message based - so we need
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# To run a message loop while waiting for our timers
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# to expire.
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start_time = time.time()
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while 1:
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# We can't simply give a timeout of 30 seconds, as
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# we may continouusly be recieving other input messages,
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# and therefore never expire.
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rc = win32event.MsgWaitForMultipleObjects(
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(g.event,), # list of objects
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0, # wait all
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500, # timeout
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win32event.QS_ALLEVENTS, # type of input
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)
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if rc == win32event.WAIT_OBJECT_0:
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# Event signalled.
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break
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elif rc == win32event.WAIT_OBJECT_0+1:
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# Message waiting.
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if win32gui.PumpWaitingMessages():
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raise RuntimeError("We got an unexpected WM_QUIT message!")
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else:
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# This wait timed-out.
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if time.time()-start_time > 30:
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raise RuntimeError("We timed out waiting for the timers to expire!")
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if __name__=='__main__':
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demo()
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