From e7bab7a9a920e77cbf9271f4739a1c83418e2dd1 Mon Sep 17 00:00:00 2001
From: sta <sta.blockhead@gmail.com>
Date: Sun, 8 Oct 2017 15:49:38 +0900
Subject: [PATCH] [Modify] Throw exception

---
 websocket-sharp/WebSocket.cs | 24 +++++++++++++++++-------
 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/websocket-sharp/WebSocket.cs b/websocket-sharp/WebSocket.cs
index 6cc94466..ae715711 100644
--- a/websocket-sharp/WebSocket.cs
+++ b/websocket-sharp/WebSocket.cs
@@ -334,19 +334,29 @@ namespace WebSocketSharp
       }
 
       set {
-        string msg;
-        if (!checkIfAvailable (true, false, true, false, false, true, out msg)) {
-          _logger.Error (msg);
-          error ("An error has occurred in setting the compression.", null);
+        if (!_client) {
+          var msg = "The set operation cannot be used by servers.";
+          throw new InvalidOperationException (msg);
+        }
 
+        if (_readyState == WebSocketState.Open) {
+          _logger.Warn ("The connection has already been established.");
+          return;
+        }
+
+        if (_readyState == WebSocketState.Closing) {
+          _logger.Warn ("The connection is closing.");
           return;
         }
 
         lock (_forState) {
-          if (!checkIfAvailable (true, false, false, true, out msg)) {
-            _logger.Error (msg);
-            error ("An error has occurred in setting the compression.", null);
+          if (_readyState == WebSocketState.Open) {
+            _logger.Warn ("The connection has already been established.");
+            return;
+          }
 
+          if (_readyState == WebSocketState.Closing) {
+            _logger.Warn ("The connection is closing.");
             return;
           }