ceph/src/boost/libs/interprocess/test/anonymous_shared_memory_test.cpp

   1 //////////////////////////////////////////////////////////////////////////////
   2 //
   3 // (C) Copyright Ion Gaztanaga 2004-2012. Distributed under the Boost
   4 // Software License, Version 1.0. (See accompanying file
   5 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // See http://www.boost.org/libs/interprocess for documentation.
   8 //
   9 //////////////////////////////////////////////////////////////////////////////
  10
  11 #include <boost/interprocess/detail/config_begin.hpp>
  12 #include <iostream>
  13 #include <boost/interprocess/mapped_region.hpp>
  14 #include <boost/interprocess/anonymous_shared_memory.hpp>
  15 #include <cstddef>
  16 #include <exception>
  17
  18 using namespace boost::interprocess;
  19
  20 int main ()
  21 {
  22    try{
  23       const std::size_t MemSize = 99999*2;
  24       {
  25          //Now check anonymous mapping
  26          mapped_region region(anonymous_shared_memory(MemSize));
  27
  28          //Write pattern
  29          unsigned char *pattern = static_cast<unsigned char*>(region.get_address());
  30          for(std::size_t i = 0
  31             ;i < MemSize
  32             ;++i, ++pattern){
  33             *pattern = static_cast<unsigned char>(i);
  34          }
  35
  36          //Check pattern
  37          pattern = static_cast<unsigned char*>(region.get_address());
  38          for(std::size_t i = 0
  39             ;i < MemSize
  40             ;++i, ++pattern){
  41             if(*pattern != static_cast<unsigned char>(i)){
  42                return 1;
  43             }
  44          }
  45       }
  46    }
  47    catch(std::exception &exc){
  48       std::cout << "Unhandled exception: " << exc.what() << std::endl;
  49       return 1;
  50    }
  51    return 0;
  52 }
  53
  54 #include <boost/interprocess/detail/config_end.hpp>