From abee6131cb4d65936604ac80441e0852e74b0254 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Sat, 3 Sep 2016 16:37:21 +0900
Subject: [PATCH] [Modify] Replace it

---
 websocket-sharp/Server/HttpServer.cs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/websocket-sharp/Server/HttpServer.cs b/websocket-sharp/Server/HttpServer.cs
index e6257f77..5407e966 100644
--- a/websocket-sharp/Server/HttpServer.cs
+++ b/websocket-sharp/Server/HttpServer.cs
@@ -955,9 +955,14 @@ namespace WebSocketSharp.Server
     /// </summary>
     public void Stop ()
     {
+      string msg;
+      if (!checkIfAvailable (false, true, false, false, out msg)) {
+        _logger.Error (msg);
+        return;
+      }
+
       lock (_sync) {
-        var msg = _state.CheckIfAvailable (false, true, false);
-        if (msg != null) {
+        if (!checkIfAvailable (false, true, false, false, out msg)) {
           _logger.Error (msg);
           return;
         }