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 <iostream>
  12 #include <boost/interprocess/mapped_region.hpp>
  13 #include <boost/interprocess/anonymous_shared_memory.hpp>
  14 #include <cstddef>
  15 #include <exception>
  16
  17 using namespace boost::interprocess;
  18
  19 int main ()
  20 {
  21    try{
  22       const std::size_t MemSize = 99999*2;
  23       {
  24          //Now check anonymous mapping
  25          mapped_region region(anonymous_shared_memory(MemSize));
  26
  27          //Write pattern
  28          unsigned char *pattern = static_cast<unsigned char*>(region.get_address());
  29          for(std::size_t i = 0
  30             ;i < MemSize
  31             ;++i, ++pattern){
  32             *pattern = static_cast<unsigned char>(i);
  33          }
  34
  35          //Check pattern
  36          pattern = static_cast<unsigned char*>(region.get_address());
  37          for(std::size_t i = 0
  38             ;i < MemSize
  39             ;++i, ++pattern){
  40             if(*pattern != static_cast<unsigned char>(i)){
  41                return 1;
  42             }
  43          }
  44       }
  45    }
  46    catch(std::exception &exc){
  47       std::cout << "Unhandled exception: " << exc.what() << std::endl;
  48       return 1;
  49    }
  50    return 0;
  51 }