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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/config_begin.hpp>
- #include <boost/interprocess/detail/workaround.hpp>
- //[doc_shared_ptr_explicit
- #include <boost/interprocess/managed_shared_memory.hpp>
- #include <boost/interprocess/smart_ptr/shared_ptr.hpp>
- #include <boost/interprocess/allocators/allocator.hpp>
- #include <boost/interprocess/smart_ptr/deleter.hpp>
- #include <cassert>
- //<-
- #include "../test/get_process_id_name.hpp"
- //->
- using namespace boost::interprocess;
- //This is type of the object we want to share
- class MyType
- {};
- typedef managed_shared_memory::segment_manager segment_manager_type;
- typedef allocator<void, segment_manager_type> void_allocator_type;
- typedef deleter<MyType, segment_manager_type> deleter_type;
- typedef shared_ptr<MyType, void_allocator_type, deleter_type> my_shared_ptr;
- 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;
- //->
- //<-
- #if 1
- managed_shared_memory segment(create_only, test::get_process_id_name(), 4096);
- #else
- //->
- managed_shared_memory segment(create_only, "MySharedMemory", 4096);
- //<-
- #endif
- //->
- //Create a shared pointer in shared memory
- //pointing to a newly created object in the segment
- my_shared_ptr &shared_ptr_instance =
- *segment.construct<my_shared_ptr>("shared ptr")
- //Arguments to construct the shared pointer
- ( segment.construct<MyType>("object to share")() //object to own
- , void_allocator_type(segment.get_segment_manager()) //allocator
- , deleter_type(segment.get_segment_manager()) //deleter
- );
- assert(shared_ptr_instance.use_count() == 1);
- //Destroy "shared ptr". "object to share" will be automatically destroyed
- segment.destroy_ptr(&shared_ptr_instance);
- return 0;
- }
- //]
- #include <boost/interprocess/detail/config_end.hpp>
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