Add missing Ice/VirtualShared.h

1 files changed, 64 insertions, 0 deletions

diff --git a/cpp/include/Ice/VirtualShared.h b/cpp/include/Ice/VirtualShared.h
new file mode 100644
index 00000000000..afa472a9b75
--- /dev/null
+++ b/cpp/include/Ice/VirtualShared.h
@@ -0,0 +1,64 @@
+// **********************************************************************
+//
+// Copyright (c) 2003-2015 ZeroC, Inc. All rights reserved.
+//
+// This copy of Ice is licensed to you under the terms described in the
+// ICE_LICENSE file included in this distribution.
+//
+// **********************************************************************
+
+#ifndef ICE_VIRTUAL_SHARED_H
+#define ICE_VIRTUAL_SHARED_H
+
+#include <IceUtil/Config.h>
+
+namespace Ice
+{
+
+#ifdef ICE_CPP11_MAPPING
+
+class VirtualEnableSharedFromThisBase : public std::enable_shared_from_this<VirtualEnableSharedFromThisBase>
+{
+public:
+     virtual ~ VirtualEnableSharedFromThisBase() = default;
+};
+
+template<typename T> class VirtualEnableSharedFromThis : public virtual VirtualEnableSharedFromThisBase 
+{
+
+public:
+
+   std::shared_ptr<T> shared_from_this() const
+   {
+      return std::dynamic_pointer_cast<T>(VirtualEnableSharedFromThis::shared_from_this());
+   }
+};
+
+#   define ICE_SHARED Ice::VirtualEnableSharedFromThisBase
+#   define ICE_LOCAL_OBJECT Ice::VirtualEnableSharedFromThisBase
+#   define ICE_ENABLE_SHARED_FROM_THIS(T) Ice::VirtualEnableSharedFromThis<T>
+
+#else
+
+// C++98
+
+template<typename T> class EnableSharedFromThis : virtual public IceUtil::Shared
+{
+public:
+
+   T* shared_from_this() const
+   {
+        return static_cast<T*>(const_cast<EnableSharedFromThis<T>*>(this));
+   }
+};
+
+#   define ICE_SHARED IceUtil::Shared
+#   define ICE_LOCAL_OBJECT Ice::LocalObject
+#   define ICE_ENABLE_SHARED_FROM_THIS(T) Ice::EnableSharedFromThis<T>
+
+
+#endif
+
+}
+
+#endif