1 //////////////////////////////////////////////////////////////////////////////
2 //
3 // (C) Copyright Ion Gaztanaga 2006-2012. Distributed under the Boost
4 // Software License, Version 1.0. (See accompanying file
5 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 //
7 // See http://www.boost.org/libs/interprocess for documentation.
8 //
9 //////////////////////////////////////////////////////////////////////////////
10 #include <boost/interprocess/detail/config_begin.hpp>
11 #include <boost/interprocess/detail/workaround.hpp>
12 //[doc_cont
13 #include <boost/interprocess/containers/vector.hpp>
14 #include <boost/interprocess/allocators/allocator.hpp>
15 #include <boost/interprocess/managed_shared_memory.hpp>
16 //<-
17 #include "../test/get_process_id_name.hpp"
18 //->
19
main()20 int main ()
21 {
22 using namespace boost::interprocess;
23 //Remove shared memory on construction and destruction
24 struct shm_remove
25 {
26 //<-
27 #if 1
28 shm_remove() { shared_memory_object::remove(test::get_process_id_name()); }
29 ~shm_remove(){ shared_memory_object::remove(test::get_process_id_name()); }
30 #else
31 //->
32 shm_remove() { shared_memory_object::remove("MySharedMemory"); }
33 ~shm_remove(){ shared_memory_object::remove("MySharedMemory"); }
34 //<-
35 #endif
36 //->
37 } remover;
38 //<-
39 (void)remover;
40 //->
41
42 //A managed shared memory where we can construct objects
43 //associated with a c-string
44 //<-
45 #if 1
46 managed_shared_memory segment(create_only,test::get_process_id_name(), 65536);
47 #else
48 //->
49 managed_shared_memory segment(create_only,
50 "MySharedMemory", //segment name
51 65536);
52 //<-
53 #endif
54 //->
55
56 //Alias an STL-like allocator of ints that allocates ints from the segment
57 typedef allocator<int, managed_shared_memory::segment_manager>
58 ShmemAllocator;
59
60 //Alias a vector that uses the previous STL-like allocator
61 typedef vector<int, ShmemAllocator> MyVector;
62
63 int initVal[] = {0, 1, 2, 3, 4, 5, 6 };
64 const int *begVal = initVal;
65 const int *endVal = initVal + sizeof(initVal)/sizeof(initVal[0]);
66
67 //Initialize the STL-like allocator
68 const ShmemAllocator alloc_inst (segment.get_segment_manager());
69
70 //Construct the vector in the shared memory segment with the STL-like allocator
71 //from a range of iterators
72 MyVector *myvector =
73 segment.construct<MyVector>
74 ("MyVector")/*object name*/
75 (begVal /*first ctor parameter*/,
76 endVal /*second ctor parameter*/,
77 alloc_inst /*third ctor parameter*/);
78
79 //Use vector as your want
80 std::sort(myvector->rbegin(), myvector->rend());
81 // . . .
82 //When done, destroy and delete vector from the segment
83 segment.destroy<MyVector>("MyVector");
84 return 0;
85 }
86 //]
87 #include <boost/interprocess/detail/config_end.hpp>
88