(websocket client) reset WebSocketTransport onClose callback in the WebSocket destructor

ixwebsocket/IXWebSocket.cpp

@@ -46,6 +46,7 @@ namespace ix
     WebSocket::~WebSocket()
     {
         stop();
+        _ws.setOnCloseCallback(nullptr);
     }
 
     void WebSocket::setUrl(const std::string& url)

ixwebsocket/IXWebSocketTransport.cpp

@@ -180,7 +180,10 @@ namespace ix
         if (readyState == ReadyState::CLOSED)
         {
             std::lock_guard<std::mutex> lock(_closeDataMutex);
-            _onCloseCallback(_closeCode, _closeReason, _closeWireSize, _closeRemote);
+            if (_onCloseCallback)
+            {
+                _onCloseCallback(_closeCode, _closeReason, _closeWireSize, _closeRemote);
+            }
             _closeCode = WebSocketCloseConstants::kInternalErrorCode;
             _closeReason = WebSocketCloseConstants::kInternalErrorMessage;
             _closeWireSize = 0;

ixwebsocket/IXWebSocketVersion.h

@@ -6,4 +6,4 @@
 
 #pragma once
 
-#define IX_WEBSOCKET_VERSION "9.10.1"
+#define IX_WEBSOCKET_VERSION "9.10.2"