From 35c308731d3a014f20a91467830c808358681259 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Wed, 27 May 2020 19:31:44 +0100 Subject: Speed up processing of federation stream RDATA rows. Instead of storing and sending an ACK for every single row we send synchronously, we instead do it asynchronously while batching up updates. --- synapse/util/async_helpers.py | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'synapse/util/async_helpers.py') diff --git a/synapse/util/async_helpers.py b/synapse/util/async_helpers.py index 581dffd8a0..f7af2bca7f 100644 --- a/synapse/util/async_helpers.py +++ b/synapse/util/async_helpers.py @@ -225,6 +225,18 @@ class Linearizer(object): {} ) # type: Dict[str, Sequence[Union[int, Dict[defer.Deferred, int]]]] + def is_queued(self, key) -> bool: + """Checks whether there is a process queued up waiting + """ + entry = self.key_to_defer.get(key) + if not entry: + # No entry so nothing is waiting. + return False + + # There are waiting deferreds only in the OrderedDict of deferreds is + # non-empty. + return bool(entry[1]) + def queue(self, key): # we avoid doing defer.inlineCallbacks here, so that cancellation works correctly. # (https://twistedmatrix.com/trac/ticket/4632 meant that cancellations were not -- cgit 1.5.1