# HG changeset patch
# User Benjamin Golinvaux <bgo@osimis.io>
# Date 1560780772 -7200
# Node ID df0c73ee7afa4f1d4982ace8032331efdc02f5aa
# Parent  df6c524024848af6d7b3686a2500c9e5f1445c63
Prevent creation of multiple GuiAdapter instances

diff -r df6c52402484 -r df0c73ee7afa Applications/Generic/GuiAdapter.h
--- a/Applications/Generic/GuiAdapter.h	Sat Jun 15 20:37:48 2019 +0200
+++ b/Applications/Generic/GuiAdapter.h	Mon Jun 17 16:12:52 2019 +0200
@@ -207,10 +207,14 @@
   public:
 #if ORTHANC_ENABLE_THREADS == 1
     GuiAdapter(LockingEmitter& lockingEmitter) : lockingEmitter_(lockingEmitter)
-    {}
 #else
-    GuiAdapter() {}
+    GuiAdapter()
 #endif
+    {
+      static int instanceCount = 0;
+      ORTHANC_ASSERT(instanceCount == 0);
+      instanceCount = 1;
+    }
 
     void RegisterWidget(boost::shared_ptr<IGuiAdapterWidget> widget);