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authorSean Quah <8349537+squahtx@users.noreply.github.com>2022-04-05 15:43:52 +0100
committerGitHub <noreply@github.com>2022-04-05 15:43:52 +0100
commit800ba87cc881856adae19ec40485578356398639 (patch)
treecb19370283b7def590239b507c5dc5c72e39af8a /synapse/rest/media/v1
parentMerge branch 'master' into develop (diff)
downloadsynapse-800ba87cc881856adae19ec40485578356398639.tar.xz
Refactor and convert `Linearizer` to async (#12357)
Refactor and convert `Linearizer` to async. This makes a `Linearizer`
cancellation bug easier to fix.

Also refactor to use an async context manager, which eliminates an
unlikely footgun where code that doesn't immediately use the context
manager could forget to release the lock.

Signed-off-by: Sean Quah <seanq@element.io>
Diffstat (limited to 'synapse/rest/media/v1')
-rw-r--r--synapse/rest/media/v1/media_repository.py6
1 files changed, 3 insertions, 3 deletions
diff --git a/synapse/rest/media/v1/media_repository.py b/synapse/rest/media/v1/media_repository.py
index 6c414402bd..3e5d6c6294 100644
--- a/synapse/rest/media/v1/media_repository.py
+++ b/synapse/rest/media/v1/media_repository.py
@@ -258,7 +258,7 @@ class MediaRepository:
         # We linearize here to ensure that we don't try and download remote
         # media multiple times concurrently
         key = (server_name, media_id)
-        with (await self.remote_media_linearizer.queue(key)):
+        async with self.remote_media_linearizer.queue(key):
             responder, media_info = await self._get_remote_media_impl(
                 server_name, media_id
             )
@@ -294,7 +294,7 @@ class MediaRepository:
         # We linearize here to ensure that we don't try and download remote
         # media multiple times concurrently
         key = (server_name, media_id)
-        with (await self.remote_media_linearizer.queue(key)):
+        async with self.remote_media_linearizer.queue(key):
             responder, media_info = await self._get_remote_media_impl(
                 server_name, media_id
             )
@@ -850,7 +850,7 @@ class MediaRepository:
 
             # TODO: Should we delete from the backup store
 
-            with (await self.remote_media_linearizer.queue(key)):
+            async with self.remote_media_linearizer.queue(key):
                 full_path = self.filepaths.remote_media_filepath(origin, file_id)
                 try:
                     os.remove(full_path)