123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687 |
- //////////////////////////////////////////////////////////////////////////////
- //
- // (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_cont
- #include <boost/interprocess/containers/vector.hpp>
- #include <boost/interprocess/allocators/allocator.hpp>
- #include <boost/interprocess/managed_shared_memory.hpp>
- //<-
- #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;
- //->
- //A managed shared memory where we can construct objects
- //associated with a c-string
- //<-
- #if 1
- managed_shared_memory segment(create_only,test::get_process_id_name(), 65536);
- #else
- //->
- managed_shared_memory segment(create_only,
- "MySharedMemory", //segment name
- 65536);
- //<-
- #endif
- //->
- //Alias an STL-like allocator of ints that allocates ints from the segment
- typedef allocator<int, managed_shared_memory::segment_manager>
- ShmemAllocator;
- //Alias a vector that uses the previous STL-like allocator
- typedef vector<int, ShmemAllocator> MyVector;
- int initVal[] = {0, 1, 2, 3, 4, 5, 6 };
- const int *begVal = initVal;
- const int *endVal = initVal + sizeof(initVal)/sizeof(initVal[0]);
- //Initialize the STL-like allocator
- const ShmemAllocator alloc_inst (segment.get_segment_manager());
- //Construct the vector in the shared memory segment with the STL-like allocator
- //from a range of iterators
- MyVector *myvector =
- segment.construct<MyVector>
- ("MyVector")/*object name*/
- (begVal /*first ctor parameter*/,
- endVal /*second ctor parameter*/,
- alloc_inst /*third ctor parameter*/);
- //Use vector as your want
- std::sort(myvector->rbegin(), myvector->rend());
- // . . .
- //When done, destroy and delete vector from the segment
- segment.destroy<MyVector>("MyVector");
- return 0;
- }
- //]
- #include <boost/interprocess/detail/config_end.hpp>
|