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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>
//[doc_offset_ptr
#include <boost/interprocess/managed_shared_memory.hpp>
#include <boost/interprocess/offset_ptr.hpp>
//<-
#include "../test/get_process_id_name.hpp"
//->
using namespace boost::interprocess;
//Shared memory linked list node
struct list_node
{
offset_ptr<list_node> next;
int value;
};
int main ()
{
//Remove shared memory on construction and destruction
struct shm_remove
{
//<-
#if 1
shm_remove() { shared_memory_object::remove(test::get_process_id_name()); }
~shm_remove(){ shared_memory_object::remove(test::get_process_id_name()); }
#else
//->
shm_remove() { shared_memory_object::remove("MySharedMemory"); }
~shm_remove(){ shared_memory_object::remove("MySharedMemory"); }
//<-
#endif
//->
} remover;
//<-
(void)remover;
//->
//Create shared memory
//<-
#if 1
managed_shared_memory segment(create_only,
test::get_process_id_name(), //segment name
65536);
#else
//->
managed_shared_memory segment(create_only,
"MySharedMemory", //segment name
65536);
//<-
#endif
//->
//Create linked list with 10 nodes in shared memory
offset_ptr<list_node> prev = 0, current, first;
int i;
for(i = 0; i < 10; ++i, prev = current){
current = static_cast<list_node*>(segment.allocate(sizeof(list_node)));
current->value = i;
current->next = 0;
if(!prev)
first = current;
else
prev->next = current;
}
//Communicate list to other processes
//. . .
//When done, destroy list
for(current = first; current; /**/){
prev = current;
current = current->next;
segment.deallocate(prev.get());
}
return 0;
}
//]
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