////////////////////////////////////////////////////////////////////////////// // // (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 #if BOOST_CXX_VERSION >=201103L //[doc_unordered_map #include #include //<- //Shield against external warnings #include //-> #include //boost::unordered_map //<- #include #include "../test/get_process_id_name.hpp" //-> #include //std::equal_to #include //boost::hash //<- #include "../test/get_process_id_name.hpp" //-> int main () { using namespace boost::interprocess; //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(), 65536); #else //-> managed_shared_memory segment(create_only, "MySharedMemory", 65536); //<- #endif //-> //Note that unordered_map's value_type is std::pair, //so the allocator must allocate that pair. typedef int KeyType; typedef float MappedType; typedef std::pair ValueType; //Typedef the allocator typedef allocator ShmemAllocator; //Alias an unordered_map of ints that uses the previous STL-like allocator. typedef boost::unordered_map < KeyType , MappedType , boost::hash ,std::equal_to , ShmemAllocator> MyHashMap; //Construct a shared memory hash map. //Note that the first parameter is the initial bucket count and //after that, the hash function, the equality function and the allocator MyHashMap *myhashmap = segment.construct("MyHashMap") //object name ( 3u, boost::hash(), std::equal_to() // , segment.get_allocator()); //allocator instance //Insert data in the hash map for(std::size_t i = 0; i < 100u; ++i){ myhashmap->insert(ValueType((int)i, (float)i)); } return 0; } //] #else int main() { return 0; } #endif //#if BOOST_CXX_VERSION >=201103L