Full merge from trunk at revision 41356 of entire boost-root tree.

[SVN r41370]

example/doc_shared_memory.cpp

@@ -0,0 +1,45 @@
+//////////////////////////////////////////////////////////////////////////////
+//
+// (C) Copyright Ion Gaztanaga 2006-2007. 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.
+//
+//////////////////////////////////////////////////////////////////////////////
+#include <boost/interprocess/detail/config_begin.hpp>
+//[doc_shared_memory
+#include <boost/interprocess/shared_memory_object.hpp>
+#include <boost/interprocess/mapped_region.hpp>
+#include <iostream>
+#include <cstring>
+
+int main ()
+{
+   using namespace boost::interprocess;
+   try{
+      //Erase previous shared memory
+      shared_memory_object::remove("shared_memory");
+
+      //Create a shared memory object.
+      shared_memory_object shm (create_only, "shared_memory", read_write);
+
+      //Set size
+      shm.truncate(1000);
+
+      //Map the whole shared memory in this process
+      mapped_region region(shm, read_write);
+
+      //Write all the memory to 1
+      std::memset(region.get_address(), 1, region.get_size());
+   }
+   catch(interprocess_exception &ex){
+      shared_memory_object::remove("shared_memory");
+      std::cout << ex.what() << std::endl;
+      return 1;
+   }
+   shared_memory_object::remove("shared_memory");
+   return 0;
+}
+//]
+#include <boost/interprocess/detail/config_end.hpp>