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Explicit federation ack

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This commit is contained in:
Erik Johnston 2016-11-23 10:40:44 +00:00
parent 54fed21c04
commit 4c79a63fd7
3 changed files with 25 additions and 8 deletions
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13
synapse/federation/send_queue.py
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@ -213,7 +213,15 @@ class FederationRemoteSendQueue(object):
def get_current_token(self):
return self.pos - 1
def get_replication_rows(self, token, limit):
def get_replication_rows(self, token, limit, federation_ack=None):
"""
Args:
token (int)
limit (int)
federation_ack (int): Optional. The position where the worker is
explicitly acknowledged it has handled. Allows us to drop
data from before that point
"""
# TODO: Handle limit.
# To handle restarts where we wrap around
@ -224,7 +232,8 @@ class FederationRemoteSendQueue(object):
# There should be only one reader, so lets delete everything its
# acknowledged its seen.
self._clear_queue_before_pos(token)
if federation_ack:
self._clear_queue_before_pos(federation_ack)
# Fetch changed presence
keys = self.presence_changed.keys()