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Remove outdated TODOs: they are already implemented in the same test.


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Add Enum type to protocol constants to automaticaly check code sanity (prevents comparing unrelated enumerated constants).
Use Enum class for node and cell states since it's very easy to mix them up.
Update unpack and load-from-mysql code to cast back into EnumItem instances.


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Restore default polling timeout: if we indefinitely wait for activity, we will never check idle events, so we will never detect application-level timeouts.


git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@332 71dcc9de-d417-0410-9af5-da40c76e7ee4

Make use of Node.__str__ to avoid crashes when getServer is None (and in other places for consistency).


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Update all lock users in Neo to use it instead of threading.Lock and threading.RLock .


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Move "lock" calls outside of "try" block: if "lock" call raises, there are chances "unlock" call from "finally" will also raise, and hide original exception.


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 - There is no need for dispatcher to be a thread
 - Polling thread does not need to be a dispatcher
In turns, this allows simplifying Storage.__init__ by moving Dispatcher, ThreadedPoll and EventManager class instantiations to App class.
Add a TODO about missing ThreadedPoll shutdown.


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Move connectToPrimaryMasterNode from Dispatcher class to App class since it does not functionally belong to dispatcher.
This simplifies connectToPrimaryMasterNode code and startup code a bit:
 - connectToPrimaryMasterNode does not need to manually poll to get a response (we use normal code for this)
   This removes a difference between initial master connection and a reconnection.
 - make App instance get a workable dispatcher from the beginning
 - make App handle initial master connection instead of Storage
 - rename "connector" parameter of connectToPrimaryMasterNode into "connector_handler", since it's what it really is
Update caller (ClientEventHandler class).


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 - One to handle events expected as answers only, and to treat in their own thread.
 - One to handle all other events, and to tread them in dispatcher thread.
Update "expected answer" caller (app.py's _waitMessage).
Update test.


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Remove explicit locking from one caller.


git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@316 71dcc9de-d417-0410-9af5-da40c76e7ee4

Test for partition table readiness at the end of the loop before sleeping rather than at the begining.
 - prevents from sleeping before exiting the loop in the even of a successful connection attemp
 - partition table got flushed a few lines above, so this test is always true on the first loop iteration.


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Note: there are 3 unimplemented tests (raising NotImplementedError).
 test_StopOperation: looks unimplemented in current code (no action besides logging).
 test_knownMasterNotifyNodeInformation & test_unknownMasterNotifyNodeInformation: it is yet unsure on how to test those cases.


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Remove all "isinstance(conn, MTClientConnection)" tests from client handler to make it unit-test-friendly: Client node does not have any listening socket, so there cannot be any (MT)ServerConnection instance used to reach handler. Also, Multi-Thread safety is not a runtime but a static criterion (ie, it is most likely a bug to use non-multi-thread-safe Connection subclasses in client). So this test is an always-true check, and can be removed.


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git-svn-id: https://svn.erp5.org/repos/neo/branches/prototype3@306 71dcc9de-d417-0410-9af5-da40c76e7ee4

Change "if" into "elif": it is obviously wrong to call app.master_conn.getUUID() on None, so this test should only be executed in "not None" case.


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