{

//Remove shared memory on construction and destruction

struct shm_remove

{

shm_remove() { shared_memory_object::remove(test::get_process_id_name()); }

~shm_remove(){ shared_memory_object::remove(test::get_process_id_name()); }

} remover;

//<-

(void)remover;

//->

//Create shared memory

managed_shared_memory segment(create_only, test::get_process_id_name(), 65536);

//Create a cached_node_allocator that allocates ints from the managed segment

//The number of chunks per segment is the default value

typedef cached_node_allocator<int, managed_shared_memory::segment_manager>

cached_node_allocator_t;

cached_node_allocator_t allocator_instance(segment.get_segment_manager());

//The max cached nodes are configurable per instance

allocator_instance.set_max_cached_nodes(3);

//Create another cached_node_allocator. Since the segment manager address

//is the same, this cached_node_allocator will be

//attached to the same pool so "allocator_instance2" can deallocate

//nodes allocated by "allocator_instance"

cached_node_allocator_t allocator_instance2(segment.get_segment_manager());

//The max cached nodes are configurable per instance

allocator_instance2.set_max_cached_nodes(5);

//Create another cached_node_allocator using copy-constructor. This

//cached_node_allocator will also be attached to the same pool

cached_node_allocator_t allocator_instance3(allocator_instance2);

//We can clear the cache

allocator_instance3.deallocate_cache();

//All allocators are equal

assert(allocator_instance == allocator_instance2);

assert(allocator_instance2 == allocator_instance3);

//So memory allocated with one can be deallocated with another

allocator_instance2.deallocate(allocator_instance.allocate(1), 1);

allocator_instance3.deallocate(allocator_instance2.allocate(1), 1);

//The common pool will be destroyed here, since no allocator is

//attached to the pool

return 0;