From a32f2d34f03046adc810d710958d11890f60f6b7 Mon Sep 17 00:00:00 2001
From: Erik <nuclear.ace@gmail.com>
Date: Sat, 1 Oct 2016 10:20:13 -0400
Subject: [PATCH] Fix #521

---
 Source/SocketIOClient.swift | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Source/SocketIOClient.swift b/Source/SocketIOClient.swift
index 062e76e..ab1c965 100644
--- a/Source/SocketIOClient.swift
+++ b/Source/SocketIOClient.swift
@@ -253,7 +253,9 @@ public final class SocketIOClient : NSObject, SocketEngineClient, SocketParsable
     }
 
     public func engineDidClose(reason: String) {
-        waitingPackets.removeAll()
+        parseQueue.sync {
+            self.waitingPackets.removeAll()
+        }
         
         if status != .disconnected {
             status = .notConnected