Imported Upstream version 1.49.0upstream/1.49.0

1 files changed, 68 insertions, 0 deletions

diff --git a/boost/interprocess/sync/shm/named_creation_functor.hpp b/boost/interprocess/sync/shm/named_creation_functor.hpp
new file mode 100644
index 0000000000..11a1db1d6f
--- /dev/null
+++ b/boost/interprocess/sync/shm/named_creation_functor.hpp
@@ -0,0 +1,68 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2007-2011. Distributed under the Boost
+// Software License, Version 1.0. (See accompanying file
+// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// See http://www.boost.org/libs/interprocess for documentation.
+//
+//////////////////////////////////////////////////////////////////////////////
+
+#ifndef BOOST_INTERPROCESS_SYNC_NAMED_CREATION_FUNCTOR_HPP
+#define BOOST_INTERPROCESS_SYNC_NAMED_CREATION_FUNCTOR_HPP
+
+#include <boost/interprocess/creation_tags.hpp>
+#include <boost/interprocess/detail/type_traits.hpp>
+#include <boost/interprocess/detail/mpl.hpp>
+
+namespace boost {
+namespace interprocess {
+namespace ipcdetail {
+
+struct named_creation_functor_no_arg{};
+
+template <class T, class Arg = named_creation_functor_no_arg>
+class named_creation_functor
+{
+   typedef named_creation_functor_no_arg no_arg_t;
+   public:
+   named_creation_functor(create_enum_t type, Arg arg = Arg())
+      :  m_creation_type(type), m_arg(arg){}
+
+   template<class ArgType>
+   void construct(void *address, typename enable_if_c<is_same<ArgType, no_arg_t>::value>::type * = 0) const
+   {  new(address)T; }
+
+   template<class ArgType>
+   void construct(void *address, typename enable_if_c<!is_same<ArgType, no_arg_t>::value>::type * = 0) const
+   {  new(address)T(m_arg); }
+
+   bool operator()(void *address, std::size_t, bool created) const
+   {   
+      switch(m_creation_type){
+         case DoOpen:
+            return true;
+         break;
+         case DoCreate:
+         case DoOpenOrCreate:
+            if(created){
+               construct<Arg>(address);
+            }
+            return true;
+         break;
+
+         default:
+            return false;
+         break;
+      }
+   }
+   private:
+   create_enum_t m_creation_type;
+   Arg m_arg;
+};
+
+}  //namespace ipcdetail {
+}  //namespace interprocess {
+}  //namespace boost {
+
+#endif   //BOOST_INTERPROCESS_SYNC_NAMED_CREATION_FUNCTOR_HPP