From 4c6688eb382cd3936acb3e40d7c132b80d41530d Mon Sep 17 00:00:00 2001
From: Antoine Martin <totaam@xpra.org>
Date: Thu, 15 Oct 2015 15:23:59 +0000
Subject: [PATCH] ensure we never start the same wrapper more than once

git-svn-id: https://xpra.org/svn/Xpra/trunk@10854 3bb7dfac-3a0b-4e04-842a-767bc560f471
---
 src/xpra/net/subprocess_wrapper.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/xpra/net/subprocess_wrapper.py b/src/xpra/net/subprocess_wrapper.py
index 7cac71d848..466696c6f7 100644
--- a/src/xpra/net/subprocess_wrapper.py
+++ b/src/xpra/net/subprocess_wrapper.py
@@ -324,10 +324,14 @@ def subprocess_exit(self, *args):
         self._fire_callback("exit")
 
     def start(self):
+        self.start = self.fail_start
         self.process = self.exec_subprocess()
         self.protocol = self.make_protocol()
         self.protocol.start()
 
+    def fail_start(self):
+        raise Exception("this wrapper has already been started")
+
     def abort_test(self, action):
         p = self.process
         if p is None or p.poll():