{

const int ShmemSize = 65536;

const CharT *const ShmemName = filename_traits<CharT>::get();

//STL compatible allocator object for memory-mapped shmem

typedef allocator<int, managed_shared_memory::segment_manager>

allocator_int_t;

//A vector that uses that allocator

typedef boost::interprocess::vector<int, allocator_int_t> MyVect;

{

//Remove the shmem it is already created

shared_memory_object::remove(ShmemName);

const int max = 100;

void *array[max];

//Named allocate capable shared memory allocator

managed_shared_memory shmem(create_only, ShmemName, ShmemSize);

int i;

//Let's allocate some memory

for(i = 0; i < max; ++i){

array[i] = shmem.allocate(i+1);

}

//Deallocate allocated memory

for(i = 0; i < max; ++i){

shmem.deallocate(array[i]);

}

}

{

//Remove the shmem it is already created

shared_memory_object::remove(ShmemName);

//Named allocate capable memory mapped shmem managed memory class

managed_shared_memory shmem(create_only, ShmemName, ShmemSize);

//Construct the STL-like allocator with the segment manager

const allocator_int_t myallocator (shmem.get_segment_manager());

//Construct vector

MyVect *shmem_vect = shmem.construct<MyVect> ("MyVector") (myallocator);

//Test that vector can be found via name

if(shmem_vect != shmem.find<MyVect>("MyVector").first)

return -1;

//Destroy and check it is not present

shmem.destroy<MyVect> ("MyVector");

if(0 != shmem.find<MyVect>("MyVector").first)

return -1;

//Construct a vector in the memory-mapped shmem

shmem_vect = shmem.construct<MyVect> ("MyVector") (myallocator);

}

{

//Map preexisting shmem again in memory

managed_shared_memory shmem(open_only, ShmemName);

//Check vector is still there

MyVect *shmem_vect = shmem.find<MyVect>("MyVector").first;

if(!shmem_vect)

return -1;

}

{

{

//Map preexisting shmem again in copy-on-write

managed_shared_memory shmem(open_copy_on_write, ShmemName);

//Check vector is still there

MyVect *shmem_vect = shmem.find<MyVect>("MyVector").first;

if(!shmem_vect)

return -1;

//Erase vector

shmem.destroy_ptr(shmem_vect);

//Make sure vector is erased

shmem_vect = shmem.find<MyVect>("MyVector").first;

if(shmem_vect)

return -1;

}

//Now check vector is still in the shmem

{

//Map preexisting shmem again in copy-on-write

managed_shared_memory shmem(open_copy_on_write, ShmemName);

//Check vector is still there

MyVect *shmem_vect = shmem.find<MyVect>("MyVector").first;

if(!shmem_vect)

return -1;

}

}

{

//Map preexisting shmem again in copy-on-write

managed_shared_memory shmem(open_read_only, ShmemName);

//Check vector is still there

MyVect *shmem_vect = shmem.find<MyVect>("MyVector").first;

if(!shmem_vect)

return -1;

}

#ifndef BOOST_INTERPROCESS_POSIX_SHARED_MEMORY_OBJECTS_NO_GROW

{

managed_shared_memory::size_type old_free_memory;

{

//Map preexisting shmem again in memory

managed_shared_memory shmem(open_only, ShmemName);

old_free_memory = shmem.get_free_memory();

}

//Now grow the shmem

managed_shared_memory::grow(ShmemName, ShmemSize);

//Map preexisting shmem again in memory

managed_shared_memory shmem(open_only, ShmemName);

//Check vector is still there

MyVect *shmem_vect = shmem.find<MyVect>("MyVector").first;

if(!shmem_vect)

return -1;

if(shmem.get_size() != (ShmemSize*2))

return -1;

if(shmem.get_free_memory() <= old_free_memory)

return -1;

}

{

managed_shared_memory::size_type old_free_memory, next_free_memory,

old_shmem_size, next_shmem_size, final_shmem_size;

{

//Map preexisting shmem again in memory

managed_shared_memory shmem(open_only, ShmemName);

old_free_memory = shmem.get_free_memory();

old_shmem_size = shmem.get_size();

}

//Now shrink the shmem

managed_shared_memory::shrink_to_fit(ShmemName);

{

//Map preexisting shmem again in memory

managed_shared_memory shmem(open_only, ShmemName);

next_shmem_size = shmem.get_size();

//Check vector is still there

MyVect *shmem_vect = shmem.find<MyVect>("MyVector").first;

if(!shmem_vect)

return -1;

next_free_memory = shmem.get_free_memory();

if(next_free_memory >= old_free_memory)

return -1;

if(old_shmem_size <= next_shmem_size)

return -1;

}

//Now destroy the vector

{

//Map preexisting shmem again in memory

managed_shared_memory shmem(open_only, ShmemName);

//Destroy and check it is not present

shmem.destroy<MyVect>("MyVector");

if(0 != shmem.find<MyVect>("MyVector").first)

return -1;

}

//Now shrink the shmem

managed_shared_memory::shrink_to_fit(ShmemName);

{

//Map preexisting shmem again in memory

managed_shared_memory shmem(open_only, ShmemName);

final_shmem_size = shmem.get_size();

if(next_shmem_size <= final_shmem_size)

return -1;

}

}

#endif //ifndef BOOST_INTERPROCESS_POSIX_SHARED_MEMORY_OBJECTS_NO_GROW

{

//Now test move semantics

managed_shared_memory original(open_only, ShmemName);

managed_shared_memory move_ctor(boost::move(original));

managed_shared_memory move_assign;

move_assign = boost::move(move_ctor);

move_assign.swap(original);

}

shared_memory_object::remove(ShmemName);

return 0;

{

int r;

r = test_managed_shared_memory<char>();

if(r) return r;

#ifdef BOOST_INTERPROCESS_WCHAR_NAMED_RESOURCES

r = test_managed_shared_memory<wchar_t>();

if(r) return r;

#endif

return 0;