From 1b6e3792eca581953b9a110c543470c2a55c1f91 Mon Sep 17 00:00:00 2001
From: JowayWang <joway.w@gmail.com>
Date: Wed, 6 Nov 2019 16:40:08 +0800
Subject: [PATCH 1/2] bugfix: fix memory leak when leave a room after socket
 close

---
 index.js | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/index.js b/index.js
index aeb5b6e..28311ef 100644
--- a/index.js
+++ b/index.js
@@ -74,11 +74,12 @@ Adapter.prototype.addAll = function(id, rooms, fn){
  */
 
 Adapter.prototype.del = function(id, room, fn){
-  this.sids[id] = this.sids[id] || {};
-  delete this.sids[id][room];
-  if (this.rooms.hasOwnProperty(room)) {
-    this.rooms[room].del(id);
-    if (this.rooms[room].length === 0) delete this.rooms[room];
+  if (this.sids[id]) {
+    delete this.sids[id][room];
+    if (this.rooms.hasOwnProperty(room)) {
+      this.rooms[room].del(id);
+      if (this.rooms[room].length === 0) delete this.rooms[room];
+    }
   }
 
   if (fn) process.nextTick(fn.bind(null, null));

From 99dc43c1857a1f64de2d7bfd78b2a7aa4d9f5292 Mon Sep 17 00:00:00 2001
From: JowayWang <joway.w@gmail.com>
Date: Wed, 6 Nov 2019 17:05:21 +0800
Subject: [PATCH 2/2] del room

---
 index.js | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/index.js b/index.js
index 28311ef..f21dcbd 100644
--- a/index.js
+++ b/index.js
@@ -74,12 +74,11 @@ Adapter.prototype.addAll = function(id, rooms, fn){
  */
 
 Adapter.prototype.del = function(id, room, fn){
-  if (this.sids[id]) {
-    delete this.sids[id][room];
-    if (this.rooms.hasOwnProperty(room)) {
-      this.rooms[room].del(id);
-      if (this.rooms[room].length === 0) delete this.rooms[room];
-    }
+  if (this.sids[id]) delete this.sids[id][room];
+
+  if (this.rooms.hasOwnProperty(room)) {
+    this.rooms[room].del(id);
+    if (this.rooms[room].length === 0) delete this.rooms[room];
   }
 
   if (fn) process.nextTick(fn.bind(null, null));