fix null reference exception when close websocket (Unity-Technologies#652)

kannan-xiao4 · web-flow · commit 4248faf9d11f · 2022-02-24T08:26:55.000+09:00
diff --git a/com.unity.renderstreaming/Runtime/Scripts/Signaling/WebSocketSignaling.cs b/com.unity.renderstreaming/Runtime/Scripts/Signaling/WebSocketSignaling.cs
@@ -51,7 +51,7 @@ public void Stop()
             if (m_running)
             {
                 m_running = false;
-                m_webSocket.Close();
+                m_webSocket?.Close();
 
                 if (m_signalingThread.ThreadState == ThreadState.WaitSleepJoin)
                 {

Original file line number	Diff line number	Diff line change
`@@ -51,7 +51,7 @@ public void Stop()`
`51`	`51`	`if (m_running)`
`52`	`52`	`{`
`53`	`53`	`m_running = false;`
`54`		`- m_webSocket.Close();`
	`54`	`+ m_webSocket?.Close();`
`55`	`55`
`56`	`56`	`if (m_signalingThread.ThreadState == ThreadState.WaitSleepJoin)`
`57`	`57`	`{`