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-rw-r--r--synapse/handlers/room_list.py47
1 files changed, 19 insertions, 28 deletions
diff --git a/synapse/handlers/room_list.py b/synapse/handlers/room_list.py
index 5d81f59b44..5757bb7f8a 100644
--- a/synapse/handlers/room_list.py
+++ b/synapse/handlers/room_list.py
@@ -15,12 +15,13 @@
 
 from twisted.internet import defer
 
+from six.moves import range
+
 from ._base import BaseHandler
 
 from synapse.api.constants import (
     EventTypes, JoinRules,
 )
-from synapse.util.logcontext import make_deferred_yieldable, preserve_fn
 from synapse.util.async import concurrently_execute
 from synapse.util.caches.descriptors import cachedInlineCallbacks
 from synapse.util.caches.response_cache import ResponseCache
@@ -44,8 +45,9 @@ EMTPY_THIRD_PARTY_ID = ThirdPartyInstanceID(None, None)
 class RoomListHandler(BaseHandler):
     def __init__(self, hs):
         super(RoomListHandler, self).__init__(hs)
-        self.response_cache = ResponseCache(hs)
-        self.remote_response_cache = ResponseCache(hs, timeout_ms=30 * 1000)
+        self.response_cache = ResponseCache(hs, "room_list")
+        self.remote_response_cache = ResponseCache(hs, "remote_room_list",
+                                                   timeout_ms=30 * 1000)
 
     def get_local_public_room_list(self, limit=None, since_token=None,
                                    search_filter=None,
@@ -77,18 +79,11 @@ class RoomListHandler(BaseHandler):
             )
 
         key = (limit, since_token, network_tuple)
-        result = self.response_cache.get(key)
-        if not result:
-            logger.info("No cached result, calculating one.")
-            result = self.response_cache.set(
-                key,
-                preserve_fn(self._get_public_room_list)(
-                    limit, since_token, network_tuple=network_tuple
-                )
-            )
-        else:
-            logger.info("Using cached deferred result.")
-        return make_deferred_yieldable(result)
+        return self.response_cache.wrap(
+            key,
+            self._get_public_room_list,
+            limit, since_token, network_tuple=network_tuple,
+        )
 
     @defer.inlineCallbacks
     def _get_public_room_list(self, limit=None, since_token=None,
@@ -207,7 +202,7 @@ class RoomListHandler(BaseHandler):
             step = len(rooms_to_scan) if len(rooms_to_scan) != 0 else 1
 
         chunk = []
-        for i in xrange(0, len(rooms_to_scan), step):
+        for i in range(0, len(rooms_to_scan), step):
             batch = rooms_to_scan[i:i + step]
             logger.info("Processing %i rooms for result", len(batch))
             yield concurrently_execute(
@@ -422,18 +417,14 @@ class RoomListHandler(BaseHandler):
             server_name, limit, since_token, include_all_networks,
             third_party_instance_id,
         )
-        result = self.remote_response_cache.get(key)
-        if not result:
-            result = self.remote_response_cache.set(
-                key,
-                repl_layer.get_public_rooms(
-                    server_name, limit=limit, since_token=since_token,
-                    search_filter=search_filter,
-                    include_all_networks=include_all_networks,
-                    third_party_instance_id=third_party_instance_id,
-                )
-            )
-        return result
+        return self.remote_response_cache.wrap(
+            key,
+            repl_layer.get_public_rooms,
+            server_name, limit=limit, since_token=since_token,
+            search_filter=search_filter,
+            include_all_networks=include_all_networks,
+            third_party_instance_id=third_party_instance_id,
+        )
 
 
 class RoomListNextBatch(namedtuple("RoomListNextBatch", (