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- Return False when a ping has been sent, so current instance isn't trashed
  and replaced by ping's internal expectPacket.
- Make current idleEvent instance handle ping's timeout, to avoid creating
  a new event for each ping sent in relation to an existing event.
- Don't call expectPacket from ping when given a msg_id, meaning it is
  related to an existing event.
- Add a minimal delay of 5 seconds between 2 pings.
- Update event tests

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When a new handler is applied on a connection, register a special packet
in the request queue to set the handler when all current requests receive
their answer.

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The connection may have been already added to writable events in poll, it
usefull to add it here only if the buffer was initialy empty.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1704 71dcc9de-d417-0410-9af5-da40c76e7ee4

At connection level, when packet parsing fails there is no packet instance
(in except block). As there is no meaning to log a packet when it is
malformed, remove this parameter from _packetMalformed().

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This exception is used only during packet decoding.

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Fix related tests.

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In writable(), the _send() call could have closed the connection so don't
close it again if aborted or don't disable write events polling has this is
already done.

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Remove hanlder methods for that packet in order to reveal if it happens in
reality, so ti could be fixed.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1694 71dcc9de-d417-0410-9af5-da40c76e7ee4

uuid variable is used both to contain peer uuid and one of the uuids sent
in message payload.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1693 71dcc9de-d417-0410-9af5-da40c76e7ee4

The implementation lacks some checks around the handling of
setClusterState, so add a TODO about this so we can get rid of former
XXX comment.

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This call, whose return value is ignore, is just here to establish the
connection with master if it was cut.

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Makes it thread-safe (with detailed explanation on for each method).
Makes it more efficient for unregister and registered uses.

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Also, make logging done when catching OperationFailure exception consistent
with logging done when catching PrimaryFailure exception.

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This does not change code flow:
- self.master_node is None when entering the loop for the first time
- there is no way to restart the loop other than a PrimaryFailure exception

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1686 71dcc9de-d417-0410-9af5-da40c76e7ee4

This is identical to what is done in master/app.py:run.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1685 71dcc9de-d417-0410-9af5-da40c76e7ee4

This reduces the cost of invoking log method when the log line is not to
be emitted.
Also, don't put a space before a colon.

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This bug was introduced in r928 and causes caches invalidations to be
effectively no-ops.

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Ask/Answer packets are linked together in both direction.
The response flag is automaticaly assigned on the answer packet.
The special 'Error' packet can be used as an expected answer for any
non-ask packet.

git-svn-id: https://svn.erp5.org/repos/neo/trunk@1677 71dcc9de-d417-0410-9af5-da40c76e7ee4

A disconnection case was calling the handler method before the close(), fix
it and factorise connection closure.

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