Cem Karan <cfkar...@gmail.com>:
> You were saying that you move your objects into a zombie state. I
> assumed that you meant you marked them in some manner (e.g., setting
> 'is_zombie' to True),
Yes, but even better:
self.set_state(ZOMBIE)
> so that anything that has a strong reference to the object knows the
> object is not supposed to be used anymore.
The other way round: the zombie object knows to ignore callbacks sent
its way. It's not the responsibility of the sender to mind the
receiver's internal state.
I nowadays tend to implement states as inner classes. Here's how I've
implemented the zombie state of one class:
class Delivery...:
def __init__(...):
...
class ZOMBIE(STATE):
def handle_connected(self):
pass
def handle_eof(self):
pass
def handle_response(self, code, response):
pass
def handle_io_error(self, errcode):
pass
def zombifie(self):
assert False
def transaction_timeout(self):
assert False
Marko
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