| ////////////////////////////////////////////////////////////////////////////// |
| // |
| // (C) Copyright Ion Gaztanaga 2006-2009. 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; |
| |
| //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> |