From 7ae8de1c67ac00f67eed076b4935ff2cf0c97e6c Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Fri, 6 Jul 2018 19:58:33 +0900
Subject: [PATCH] [Modify] Add it

---
 websocket-sharp/Server/WebSocketBehavior.cs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/websocket-sharp/Server/WebSocketBehavior.cs b/websocket-sharp/Server/WebSocketBehavior.cs
index 23f5cf26..625c58d7 100644
--- a/websocket-sharp/Server/WebSocketBehavior.cs
+++ b/websocket-sharp/Server/WebSocketBehavior.cs
@@ -450,6 +450,26 @@ namespace WebSocketSharp.Server
 
     #region Protected Methods
 
+    /// <summary>
+    /// Closes the WebSocket connection for a session.
+    /// </summary>
+    /// <remarks>
+    /// This method does nothing if the current state of the connection is
+    /// Closing or Closed.
+    /// </remarks>
+    /// <exception cref="InvalidOperationException">
+    /// The session has not started yet.
+    /// </exception>
+    protected void Close ()
+    {
+      if (_websocket == null) {
+        var msg = "The session has not started yet.";
+        throw new InvalidOperationException (msg);
+      }
+
+      _websocket.Close ();
+    }
+
     /// <summary>
     /// Calls the <see cref="OnError"/> method with the specified message.
     /// </summary>