91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2006-2012. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/interprocess for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#include <boost/interprocess/detail/config_begin.hpp>
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#include <boost/interprocess/detail/workaround.hpp>
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//[doc_offset_ptr
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#include <boost/interprocess/managed_shared_memory.hpp>
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#include <boost/interprocess/offset_ptr.hpp>
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//<-
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#include "../test/get_process_id_name.hpp"
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//->
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using namespace boost::interprocess;
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//Shared memory linked list node
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struct list_node
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{
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offset_ptr<list_node> next;
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int value;
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};
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int main ()
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{
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//Remove shared memory on construction and destruction
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struct shm_remove
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{
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//<-
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#if 1
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shm_remove() { shared_memory_object::remove(test::get_process_id_name()); }
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~shm_remove(){ shared_memory_object::remove(test::get_process_id_name()); }
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#else
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//->
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shm_remove() { shared_memory_object::remove("MySharedMemory"); }
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~shm_remove(){ shared_memory_object::remove("MySharedMemory"); }
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//<-
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#endif
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//->
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} remover;
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//<-
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(void)remover;
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//->
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//Create shared memory
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//<-
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#if 1
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managed_shared_memory segment(create_only,
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test::get_process_id_name(), //segment name
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65536);
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#else
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//->
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managed_shared_memory segment(create_only,
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"MySharedMemory", //segment name
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65536);
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//<-
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#endif
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//->
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//Create linked list with 10 nodes in shared memory
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offset_ptr<list_node> prev = 0, current, first;
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int i;
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for(i = 0; i < 10; ++i, prev = current){
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current = static_cast<list_node*>(segment.allocate(sizeof(list_node)));
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current->value = i;
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current->next = 0;
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if(!prev)
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first = current;
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else
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prev->next = current;
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}
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//Communicate list to other processes
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//. . .
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//When done, destroy list
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for(current = first; current; /**/){
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prev = current;
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current = current->next;
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segment.deallocate(prev.get());
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}
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return 0;
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}
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//]
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#include <boost/interprocess/detail/config_end.hpp>
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