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Fix/improve some docstrings in the replication code. (#4949)

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Richard van der Hoff 2019-03-27 21:12:36 +00:00 committed by GitHub
parent bbd244c7b2
commit acaa18f7dd
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3 changed files with 20 additions and 7 deletions
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1
changelog.d/4949.misc Normal file
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@ -0,0 +1 @@
Fix/improve some docstrings in the replication code.

14
synapse/replication/tcp/client.py
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@ -103,10 +103,18 @@ class ReplicationClientHandler(object):
hs.get_reactor().connectTCP(host, port, self.factory)
def on_rdata(self, stream_name, token, rows):
"""Called when we get new replication data. By default this just pokes
the slave store.
"""Called to handle a batch of replication data with a given stream token.
Can be overriden in subclasses to handle more.
By default this just pokes the slave store. Can be overriden in subclasses to
handle more.
Args:
stream_name (str): name of the replication stream for this batch of rows
token (int): stream token for this batch of rows
rows (list): a list of Stream.ROW_TYPE objects.
Returns:
Deferred|None
"""
logger.debug("Received rdata %s -> %s", stream_name, token)
return self.store.process_replication_rows(stream_name, token, rows)

12
synapse/replication/tcp/streams.py
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@ -162,8 +162,10 @@ class Stream(object):
until the `upto_token`
Returns:
(list(ROW_TYPE), int): list of updates plus the token used as an
upper bound of the updates (i.e. the "current token")
Deferred[Tuple[List[Tuple[int, Any]], int]:
Resolves to a pair ``(updates, current_token)``, where ``updates`` is a
list of ``(token, row)`` entries. ``row`` will be json-serialised and
sent over the replication steam.
"""
updates, current_token = yield self.get_updates_since(self.last_token)
self.last_token = current_token
@ -176,8 +178,10 @@ class Stream(object):
stream updates
Returns:
(list(ROW_TYPE), int): list of updates plus the token used as an
upper bound of the updates (i.e. the "current token")
Deferred[Tuple[List[Tuple[int, Any]], int]:
Resolves to a pair ``(updates, current_token)``, where ``updates`` is a
list of ``(token, row)`` entries. ``row`` will be json-serialised and
sent over the replication steam.
"""
if from_token in ("NOW", "now"):
defer.returnValue(([], self.upto_token))