From d87151aee6b07c04f7659336fa1fada4d274f2d8 Mon Sep 17 00:00:00 2001
From: Badlop <badlop@process-one.net>
Date: Thu, 7 Sep 2017 18:32:26 +0200
Subject: [PATCH] Simple optimization in get_room_occupants_number command
 (#1964)

---
 src/mod_muc_admin.erl | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/mod_muc_admin.erl b/src/mod_muc_admin.erl
index e13c46e25..a8dbc2479 100644
--- a/src/mod_muc_admin.erl
+++ b/src/mod_muc_admin.erl
@@ -802,7 +802,13 @@ get_room_occupants(Pid) ->
       dict:to_list(S#state.users)).
 
 get_room_occupants_number(Room, Host) ->
-    length(get_room_occupants(Room, Host)).
+    case get_room_pid(Room, Host) of
+	room_not_found ->
+	    throw({error, room_not_found});
+	Pid ->
+	    S = get_room_state(Pid),
+	    dict:size(S#state.users)
+    end.
 
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