Have EventSource's get_new_events_for_user() API work only on keys within that source, not overall eventstream tokens

synapse/handlers/presence.py

@@ -727,8 +727,8 @@ class PresenceEventSource(object):
         self.hs = hs
         self.clock = hs.get_clock()
 
-    def get_new_events_for_user(self, user, from_token, limit):
-        from_key = int(from_token.presence_key)
+    def get_new_events_for_user(self, user, from_key, limit):
+        from_key = int(from_key)
 
         presence = self.hs.get_handlers().presence_handler
         cachemap = presence._user_cachemap
@@ -743,15 +743,9 @@ class PresenceEventSource(object):
             latest_serial = max([x[1].serial for x in updates])
             data = [x[1].make_event(user=x[0], clock=clock) for x in updates]
 
-            end_token = from_token.copy_and_replace(
-                "presence_key", latest_serial
-            )
-            return ((data, end_token))
+            return ((data, latest_serial))
         else:
-            end_token = from_token.copy_and_replace(
-                "presence_key", presence._user_cachemap_latest_serial
-            )
-            return (([], end_token))
+            return (([], presence._user_cachemap_latest_serial))
 
     def get_current_token_part(self):
         presence = self.hs.get_handlers().presence_handler

synapse/handlers/room.py

@@ -469,22 +469,20 @@ class RoomEventSource(object):
         self.store = hs.get_datastore()
 
     @defer.inlineCallbacks
-    def get_new_events_for_user(self, user, from_token, limit):
+    def get_new_events_for_user(self, user, from_key, limit):
         # We just ignore the key for now.
 
         to_key = yield self.get_current_token_part()
 
         events, end_key = yield self.store.get_room_events_stream(
             user_id=user.to_string(),
-            from_key=from_token.room_key,
+            from_key=from_key,
             to_key=to_key,
             room_id=None,
             limit=limit,
         )
 
-        end_token = from_token.copy_and_replace("room_key", end_key)
-
-        defer.returnValue((events, end_token))
+        defer.returnValue((events, end_key))
 
     def get_current_token_part(self):
         return self.store.get_room_events_max_id()

synapse/handlers/typing.py

@@ -151,8 +151,8 @@ class TypingNotificationEventSource(object):
     def __init__(self, hs):
         self.hs = hs
 
-    def get_new_events_for_user(self, user, from_token, limit):
-        return ([], from_token)
+    def get_new_events_for_user(self, user, from_key, limit):
+        return ([], from_key)
 
     def get_current_token_part(self):
         return 0