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authorPaul "LeoNerd" Evans <paul@matrix.org>2015-02-23 16:04:40 +0000
committerPaul "LeoNerd" Evans <paul@matrix.org>2015-02-23 16:04:40 +0000
commit044d813ef7bb67e7b680087d82f931e4c780218f (patch)
tree8055412837f73382b030006d2f29c80d52144b5f /synapse/storage
parentRoomMemberStore no longer needs a _user_rooms_cache member (diff)
downloadsynapse-044d813ef7bb67e7b680087d82f931e4c780218f.tar.xz
Use the @cached decorator to implement the destination_retry_timings cache
Diffstat (limited to 'synapse/storage')
-rw-r--r--synapse/storage/transactions.py14
1 files changed, 5 insertions, 9 deletions
diff --git a/synapse/storage/transactions.py b/synapse/storage/transactions.py
index e06ef35690..6cac8d01ac 100644
--- a/synapse/storage/transactions.py
+++ b/synapse/storage/transactions.py
@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from ._base import SQLBaseStore, Table
+from ._base import SQLBaseStore, Table, cached
 
 from collections import namedtuple
 
@@ -28,10 +28,6 @@ class TransactionStore(SQLBaseStore):
     """A collection of queries for handling PDUs.
     """
 
-    # a write-through cache of DestinationsTable.EntryType indexed by
-    # destination string
-    destination_retry_cache = {}
-
     def get_received_txn_response(self, transaction_id, origin):
         """For an incoming transaction from a given origin, check if we have
         already responded to it. If so, return the response code and response
@@ -211,6 +207,7 @@ class TransactionStore(SQLBaseStore):
 
         return ReceivedTransactionsTable.decode_results(txn.fetchall())
 
+    @cached()
     def get_destination_retry_timings(self, destination):
         """Gets the current retry timings (if any) for a given destination.
 
@@ -221,9 +218,6 @@ class TransactionStore(SQLBaseStore):
             None if not retrying
             Otherwise a DestinationsTable.EntryType for the retry scheme
         """
-        if destination in self.destination_retry_cache:
-            return defer.succeed(self.destination_retry_cache[destination])
-
         return self.runInteraction(
             "get_destination_retry_timings",
             self._get_destination_retry_timings, destination)
@@ -250,7 +244,9 @@ class TransactionStore(SQLBaseStore):
             retry_interval (int) - how long until next retry in ms
         """
 
-        self.destination_retry_cache[destination] = (
+        # As this is the new value, we might as well prefill the cache
+        self.get_destination_retry_timings.prefill(
+            destination,
             DestinationsTable.EntryType(
                 destination,
                 retry_last_ts,