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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_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;
- }
- //]
- #include <boost/interprocess/detail/config_end.hpp>
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