From 6ff6b0485f2c5e523b1f71dfb12e9aaba5378141 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Tue, 30 Sep 2014 14:28:59 +0900
Subject: [PATCH] Can only set the KeepClean property before the start

---
 websocket-sharp/Server/HttpServer.cs           | 6 ++++++
 websocket-sharp/Server/WebSocketServer.cs      | 6 ++++++
 websocket-sharp/Server/WebSocketServiceHost.cs | 6 ++++++
 3 files changed, 18 insertions(+)

diff --git a/websocket-sharp/Server/HttpServer.cs b/websocket-sharp/Server/HttpServer.cs
index b30e5d00..e8f8b07e 100644
--- a/websocket-sharp/Server/HttpServer.cs
+++ b/websocket-sharp/Server/HttpServer.cs
@@ -244,6 +244,12 @@ namespace WebSocketSharp.Server
       }
 
       set {
+        var msg = _state.CheckIfStartable ();
+        if (msg != null) {
+          _logger.Error (msg);
+          return;
+        }
+
         _services.KeepClean = value;
       }
     }
diff --git a/websocket-sharp/Server/WebSocketServer.cs b/websocket-sharp/Server/WebSocketServer.cs
index 73bcfe1c..1e9b7065 100644
--- a/websocket-sharp/Server/WebSocketServer.cs
+++ b/websocket-sharp/Server/WebSocketServer.cs
@@ -372,6 +372,12 @@ namespace WebSocketSharp.Server
       }
 
       set {
+        var msg = _state.CheckIfStartable ();
+        if (msg != null) {
+          _logger.Error (msg);
+          return;
+        }
+
         _services.KeepClean = value;
       }
     }
diff --git a/websocket-sharp/Server/WebSocketServiceHost.cs b/websocket-sharp/Server/WebSocketServiceHost.cs
index 8034e841..5d1fb378 100644
--- a/websocket-sharp/Server/WebSocketServiceHost.cs
+++ b/websocket-sharp/Server/WebSocketServiceHost.cs
@@ -187,6 +187,12 @@ namespace WebSocketSharp.Server
       }
 
       set {
+        var msg = _sessions.State.CheckIfStartable ();
+        if (msg != null) {
+          _logger.Error (msg);
+          return;
+        }
+
         _sessions.KeepClean = value;
       }
     }