twisted 系统事件捕获

maiyantao

1. from twisted.internet import reactor
   
2. 
   
3. 
   
4. def before_reactor_startup():
   
5.     print('befor_reactor_startup')
   
6. 
   
7. 
   
8. def after_reactor_startup():
   
9.     print('after_reactor_startup')
   
10. 
    
11. 
    
12. def start_crossbar():
    
13.     print('start_crossbar')
    
14. 
    
15. 
    
16. def before_reactor_shutdown():
    
17.     print('before_reactor_shutdown')
    
18. 
    
19. 
    
20. def after_reactor_shutdown():
    
21.     print('after_reactor_shutdown')
    
22. 
    
23. 
    
24. if __name__ == '__main__':
    
25.     reactor.addSystemEventTrigger('before', 'startup', before_reactor_startup)
    
26.     reactor.addSystemEventTrigger('after', 'startup', after_reactor_startup)
    
27. 
    
28.     reactor.callWhenRunning(start_crossbar)
    
29. 
    
30.     reactor.addSystemEventTrigger('before', 'shutdown', before_reactor_shutdown)
    
31.     reactor.addSystemEventTrigger('after', 'shutdown', after_reactor_shutdown)
    
32. 
    
33.     reactor.run()
    

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