1//////////////////////////////////////////////////////////////////////////////
2//
3// (C) Copyright Ion Gaztanaga 2004-2012. 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
11#include <boost/interprocess/detail/workaround.hpp>
12
13#if defined(BOOST_INTERPROCESS_XSI_SHARED_MEMORY_OBJECTS)
14
15#include <fstream>
16#include <iostream>
17#include <boost/interprocess/xsi_shared_memory.hpp>
18#include <boost/interprocess/mapped_region.hpp>
19#include <boost/interprocess/file_mapping.hpp>
20#include <boost/interprocess/detail/file_wrapper.hpp>
21#include <boost/interprocess/detail/os_thread_functions.hpp>
22#include <string>
23#include <iostream>
24#include "get_process_id_name.hpp"
25
26using namespace boost::interprocess;
27
28void remove_shared_memory(const xsi_key &key)
29{
30 BOOST_TRY{
31 xsi_shared_memory xsi(open_only, key);
32 xsi_shared_memory::remove(shmid: xsi.get_shmid());
33 }
34 BOOST_CATCH(interprocess_exception &e){
35 if(e.get_error_code() != not_found_error)
36 BOOST_RETHROW
37 } BOOST_CATCH_END
38}
39
40class xsi_shared_memory_remover
41{
42 public:
43 xsi_shared_memory_remover(xsi_shared_memory &xsi_shm)
44 : xsi_shm_(xsi_shm)
45 {}
46
47 ~xsi_shared_memory_remover()
48 { xsi_shared_memory::remove(shmid: xsi_shm_.get_shmid()); }
49 private:
50 xsi_shared_memory & xsi_shm_;
51};
52
53int main ()
54{
55 std::string filename(get_filename());
56 const char *names[2] = { filename.c_str(), 0 };
57
58 file_mapping::remove(filename: names[0]);
59 { ipcdetail::file_wrapper(create_only, names[0], read_write); }
60
61 xsi_key key(names[0], static_cast<boost::uint8_t>(boost::interprocess::ipcdetail::get_current_system_highres_rand()));
62 file_mapping::remove(filename: names[0]);
63 remove_shared_memory(key);
64
65 unsigned int i;
66 BOOST_TRY{
67 for(i = 0; i < sizeof(names)/sizeof(names[0]); ++i)
68 {
69 const std::size_t FileSize = 16*1024;
70 //Create a file mapping
71 xsi_shared_memory mapping (create_only, names[i] ? key : xsi_key(), FileSize);
72 xsi_shared_memory_remover rem(mapping);
73 BOOST_TRY{
74 {
75 //Partial mapping should fail fox XSI shared memory
76 bool thrown = false;
77 BOOST_TRY{
78 mapped_region region2(mapping, read_write, FileSize/2, FileSize - FileSize/2, 0);
79 }
80 BOOST_CATCH(...){
81 thrown = true;
82 } BOOST_CATCH_END
83 if(thrown == false){
84 return 1;
85 }
86 BOOST_TRY{
87 //Create a mapped region
88 mapped_region region (mapping, read_write, 0, FileSize, 0);
89
90 //Fill two regions with a pattern
91 unsigned char *filler = static_cast<unsigned char*>(region.get_address());
92 for(std::size_t i = 0; i < FileSize; ++i){
93 *filler++ = static_cast<unsigned char>(i);
94 }
95 }
96 BOOST_CATCH(std::exception& exc){
97 std::cout << "Unhandled exception 0: " << exc.what() << " name: " << (names[i] ? names[i] : "null") << std::endl;
98 } BOOST_CATCH_END
99 }
100
101 //Now check the pattern mapping a single read only mapped_region
102 {
103 //Create a single region, mapping all the file
104 mapped_region region (mapping, read_only);
105
106 //Check pattern
107 unsigned char *pattern = static_cast<unsigned char*>(region.get_address());
108 for(std::size_t i = 0; i < FileSize; ++i, ++pattern){
109 if(*pattern != static_cast<unsigned char>(i)){
110 return 1;
111 }
112 }
113 }
114 }
115 BOOST_CATCH(std::exception &exc){
116 std::cout << "Unhandled exception 1: " << exc.what() << " name: " << (names[i] ? names[i] : "null") << std::endl;
117 return 1;
118 } BOOST_CATCH_END
119 }
120 }
121 BOOST_CATCH(std::exception &exc){
122 std::cout << "Unhandled exception 2: " << exc.what() << " name: " << (names[i] ? names[i] : "null") << std::endl;
123 return 1;
124 } BOOST_CATCH_END
125 return 0;
126}
127
128#else
129
130int main()
131{
132 return 0;
133}
134
135#endif //BOOST_INTERPROCESS_XSI_SHARED_MEMORY_OBJECTS
136

source code of boost/libs/interprocess/test/xsi_shared_memory_mapping_test.cpp