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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2006-2012. 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/workaround.hpp>
#if defined(BOOST_INTERPROCESS_WINDOWS) || defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
//[doc_windows_shared_memory
#include <boost/interprocess/windows_shared_memory.hpp>
#include <boost/interprocess/mapped_region.hpp>
#include <cstring>
#include <cstdlib>
#include <string>
//<-
#include "../test/get_process_id_name.hpp"
//->
int main(int argc, char *argv[])
{
using namespace boost::interprocess;
if(argc == 1){ //Parent process
//Create a native windows shared memory object.
//<-
#if 1
windows_shared_memory shm (create_only, test::get_process_id_name(), read_write, 1000);
#else
//->
windows_shared_memory shm (create_only, "MySharedMemory", read_write, 1000);
//<-
#endif
//->
//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());
//Launch child process
std::string s(argv[0]); s += " child ";
//<-
s += test::get_process_id_name();
//->
if(0 != std::system(s.c_str()))
return 1;
//windows_shared_memory is destroyed when the last attached process dies...
}
else{
//Open already created shared memory object.
//<-
#if 1
windows_shared_memory shm (open_only, argv[2], read_only);
#else
//->
windows_shared_memory shm (open_only, "MySharedMemory", read_only);
//<-
#endif
//->
//Map the whole shared memory in this process
mapped_region region(shm, read_only);
//Check that memory was initialized to 1
char *mem = static_cast<char*>(region.get_address());
for(std::size_t i = 0; i < region.get_size(); ++i)
if(*mem++ != 1)
return 1; //Error checking memory
return 0;
}
return 0;
}
//]
#else //BOOST_INTERPROCESS_WINDOWS
int main()
{
return 0;
}
#endif //BOOST_INTERPROCESS_WINDOWS
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