1 files changed, 113 insertions, 0 deletions
diff --git a/boost/interprocess/managed_external_buffer.hpp b/boost/interprocess/managed_external_buffer.hpp
new file mode 100644
index 0000000000..a2cf47f4e6
--- /dev/null
+++ b/boost/interprocess/managed_external_buffer.hpp
@@ -0,0 +1,113 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2005-2011. 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_MANAGED_EXTERNAL_BUFFER_HPP
+#define BOOST_INTERPROCESS_MANAGED_EXTERNAL_BUFFER_HPP
+
+#if (defined _MSC_VER) && (_MSC_VER >= 1200)
+#  pragma once
+#endif
+
+#include <boost/interprocess/detail/config_begin.hpp>
+#include <boost/interprocess/detail/workaround.hpp>
+#include <boost/interprocess/creation_tags.hpp>
+#include <boost/interprocess/detail/managed_memory_impl.hpp>
+#include <boost/move/move.hpp>
+#include <boost/assert.hpp>
+//These includes needed to fulfill default template parameters of
+//predeclarations in interprocess_fwd.hpp
+#include <boost/interprocess/mem_algo/rbtree_best_fit.hpp>  
+#include <boost/interprocess/sync/mutex_family.hpp>
+#include <boost/interprocess/indexes/iset_index.hpp>
+
+//!\file
+//!Describes a named user memory allocation user class. 
+
+namespace boost {
+namespace interprocess {
+
+//!A basic user memory named object creation class. Inherits all 
+//!basic functionality from 
+//!basic_managed_memory_impl<CharType, AllocationAlgorithm, IndexType>*/
+template
+      <
+         class CharType, 
+         class AllocationAlgorithm, 
+         template<class IndexConfig> class IndexType
+      >
+class basic_managed_external_buffer 
+   : public ipcdetail::basic_managed_memory_impl <CharType, AllocationAlgorithm, IndexType>
+{
+   /// @cond
+   typedef ipcdetail::basic_managed_memory_impl 
+      <CharType, AllocationAlgorithm, IndexType>    base_t;
+   BOOST_MOVABLE_BUT_NOT_COPYABLE(basic_managed_external_buffer)
+   /// @endcond
+   
+   public:
+   typedef typename base_t::size_type              size_type;
+
+   //!Default constructor. Does nothing.
+   //!Useful in combination with move semantics
+   basic_managed_external_buffer()
+   {}
+
+   //!Creates and places the segment manager. This can throw
+   basic_managed_external_buffer
+      (create_only_t, void *addr, size_type size)
+   {
+      //Check if alignment is correct
+      BOOST_ASSERT((0 == (((std::size_t)addr) & (AllocationAlgorithm::Alignment - size_type(1u)))));
+      if(!base_t::create_impl(addr, size)){
+         throw interprocess_exception("Could not initialize buffer in basic_managed_external_buffer constructor");
+      }
+   }
+
+   //!Creates and places the segment manager. This can throw
+   basic_managed_external_buffer
+      (open_only_t, void *addr, size_type size)
+   {
+      //Check if alignment is correct
+      BOOST_ASSERT((0 == (((std::size_t)addr) & (AllocationAlgorithm::Alignment - size_type(1u)))));
+      if(!base_t::open_impl(addr, size)){
+         throw interprocess_exception("Could not initialize buffer in basic_managed_external_buffer constructor");
+      }
+   }
+
+   //!Moves the ownership of "moved"'s managed memory to *this. Does not throw
+   basic_managed_external_buffer(BOOST_RV_REF(basic_managed_external_buffer) moved)
+   {
+      this->swap(moved);
+   }
+
+   //!Moves the ownership of "moved"'s managed memory to *this. Does not throw
+   basic_managed_external_buffer &operator=(BOOST_RV_REF(basic_managed_external_buffer) moved)
+   {
+      basic_managed_external_buffer tmp(boost::move(moved));
+      this->swap(tmp);
+      return *this;
+   }
+
+   void grow(size_type extra_bytes)
+   {  base_t::grow(extra_bytes);   }
+
+   //!Swaps the ownership of the managed heap memories managed by *this and other.
+   //!Never throws.
+   void swap(basic_managed_external_buffer &other)
+   {  base_t::swap(other); }
+};
+
+}  //namespace interprocess {
+}  //namespace boost {
+
+#include <boost/interprocess/detail/config_end.hpp>
+
+#endif   //BOOST_INTERPROCESS_MANAGED_EXTERNAL_BUFFER_HPP
+