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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_private_node_allocator
#include <boost/interprocess/managed_shared_memory.hpp>
#include <boost/interprocess/allocators/private_node_allocator.hpp>
#include <cassert>
//<-
#include "../test/get_process_id_name.hpp"
//->
using namespace boost::interprocess;
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 a private_node_allocator that allocates ints from the managed segment
//The number of chunks per segment is the default value
typedef private_node_allocator<int, managed_shared_memory::segment_manager>
private_node_allocator_t;
private_node_allocator_t allocator_instance(segment.get_segment_manager());
//Create another private_node_allocator.
private_node_allocator_t allocator_instance2(segment.get_segment_manager());
//Although the segment manager address
//is the same, this private_node_allocator will have its own pool so
//"allocator_instance2" CAN'T deallocate nodes allocated by "allocator_instance".
//"allocator_instance2" is NOT equal to "allocator_instance"
assert(allocator_instance != allocator_instance2);
//Create another node_allocator using copy-constructor.
private_node_allocator_t allocator_instance3(allocator_instance2);
//This allocator is also unequal to allocator_instance2
assert(allocator_instance2 != allocator_instance3);
//Pools are destroyed with the allocators
return 0;
}
//]
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