From 4d616ce2812e7e9c2b6f497289111d45724ae37e Mon Sep 17 00:00:00 2001
From: Bruno Windels <brunow@matrix.org>
Date: Thu, 24 Sep 2020 10:35:09 +0200
Subject: [PATCH] add todo for future optimisation

---
 src/matrix/e2ee/RoomEncryption.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/matrix/e2ee/RoomEncryption.js b/src/matrix/e2ee/RoomEncryption.js
index dac362c0..2c23933d 100644
--- a/src/matrix/e2ee/RoomEncryption.js
+++ b/src/matrix/e2ee/RoomEncryption.js
@@ -215,6 +215,8 @@ export class RoomEncryption {
      * @return {Array<string>} the event ids that should be retried to decrypt
      */
     getEventIdsForRoomKey(roomKey) {
+        // TODO: we could concat both results here, and only put stuff in
+        // candidates if it is not in missing sessions to use a bit less memory
         let eventIds = this._missingSessions.getEventIds(roomKey.senderKey, roomKey.sessionId);
         if (!eventIds) {
             eventIds = this._missingSessionCandidates.getEventIds(roomKey.senderKey, roomKey.sessionId);