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Add boost shared memory example.
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‎c++/SharedMemory1/SharedMemory1.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 16
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VisualStudioVersion = 16.0.31624.102
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "SharedMemory1", "SharedMemory1\SharedMemory1.vcxproj", "{928CC868-6C4D-4639-BA47-2346042E3219}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|x64 = Debug|x64
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Debug|x86 = Debug|x86
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Release|x64 = Release|x64
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Release|x86 = Release|x86
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{928CC868-6C4D-4639-BA47-2346042E3219}.Debug|x64.ActiveCfg = Debug|x64
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{928CC868-6C4D-4639-BA47-2346042E3219}.Debug|x64.Build.0 = Debug|x64
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{928CC868-6C4D-4639-BA47-2346042E3219}.Debug|x86.ActiveCfg = Debug|Win32
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{928CC868-6C4D-4639-BA47-2346042E3219}.Debug|x86.Build.0 = Debug|Win32
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{928CC868-6C4D-4639-BA47-2346042E3219}.Release|x64.ActiveCfg = Release|x64
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{928CC868-6C4D-4639-BA47-2346042E3219}.Release|x64.Build.0 = Release|x64
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{928CC868-6C4D-4639-BA47-2346042E3219}.Release|x86.ActiveCfg = Release|Win32
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{928CC868-6C4D-4639-BA47-2346042E3219}.Release|x86.Build.0 = Release|Win32
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {1D1AE6E6-CA24-41FE-A3B2-507C653A3632}
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EndGlobalSection
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EndGlobal

‎c++/SharedMemory1/SharedMemory1/SharedMemory1.cpp‎

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// SharedMemory1.cpp : This file contains the 'main' function. Program execution begins and ends there.
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//
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#include <iostream>
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//#include <boost/interprocess/managed_shared_memory.hpp>
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#include <boost/interprocess/shared_memory_object.hpp>
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#include <boost/interprocess/managed_windows_shared_memory.hpp>
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//#include <boost/interprocess/sync/interprocess_semaphore.hpp>
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#include <boost/interprocess/sync/named_semaphore.hpp>
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#include <boost/interprocess/containers/map.hpp>
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#include <boost/interprocess/containers/vector.hpp>
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#include <boost/interprocess/allocators/allocator.hpp>
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using namespace boost::interprocess;
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typedef allocator<uint8_t, managed_windows_shared_memory::segment_manager> ShmemAllocatorV;
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typedef vector<uint8_t, ShmemAllocatorV> MyVector;
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typedef allocator<char, managed_windows_shared_memory::segment_manager> CharAllocator;
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typedef std::basic_string<char, std::char_traits<char>, CharAllocator> MyString;
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typedef MyString KeyType;
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typedef MyVector MappedType;
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typedef std::pair<const MyString, MyVector> ValueType;
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typedef allocator<ValueType, managed_windows_shared_memory::segment_manager> ShmemAllocatorMap;
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typedef map<KeyType, MappedType, std::less<KeyType>, ShmemAllocatorMap> MyMap;
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struct __Named
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{
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static inline const char* shared_memory_name = "MySharedMemory";
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static inline const char* image_map_name = "MyMap";
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static inline const char* image_vec_name = "MyVec";
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static inline const char* image_string_name = "MyString";
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};
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int main()
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{
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boost::interprocess::named_semaphore sem(open_or_create, "sem", 0);
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struct shm_remove
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{
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//shm_remove() { shared_memory_object::remove(__Named::shared_memory_name); }
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~shm_remove() { shared_memory_object::remove(__Named::shared_memory_name); }
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} remover;
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try
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{
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std::string id = "abcdefg";
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std::vector<uint8_t> image;
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for (int i = 0; i < 10; ++i)
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{
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image.push_back(i);
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}
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managed_windows_shared_memory segment(create_only, __Named::shared_memory_name, 4096);
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MyVector* myvector = segment.construct<MyVector>(__Named::image_vec_name)(image.begin(), image.end(), segment.get_segment_manager());
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MyString* mystring = segment.construct<MyString >(__Named::image_string_name)(id, segment.get_segment_manager());
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MyMap* mymap = segment.construct<MyMap >(__Named::image_map_name)(segment.get_segment_manager());
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mymap->insert(std::make_pair(*mystring, *myvector));
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sem.post();
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std::cout << "exit!" << std::endl;
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}
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catch (const interprocess_exception& err)
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{
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std::cout << err.get_error_code() << ", " << err.what() << std::endl;
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}
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}
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// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
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// Debug program: F5 or Debug > Start Debugging menu
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// Tips for Getting Started:
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// 1. Use the Solution Explorer window to add/manage files
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// 2. Use the Team Explorer window to connect to source control
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// 3. Use the Output window to see build output and other messages
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// 4. Use the Error List window to view errors
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// 5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
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// 6. In the future, to open this project again, go to File > Open > Project and select the .sln file

‎c++/SharedMemory1/SharedMemory1/SharedMemory1.vcxproj‎

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<Configuration>Release</Configuration>
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<PropertyGroup Label="Globals">
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<VCProjectVersion>16.0</VCProjectVersion>
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<ProjectGuid>{928cc868-6c4d-4639-ba47-2346042e3219}</ProjectGuid>
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<RootNamespace>SharedMemory1</RootNamespace>
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<WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
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<Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
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<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
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<ClCompile>
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<WarningLevel>Level3</WarningLevel>
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<FunctionLevelLinking>true</FunctionLevelLinking>
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<IntrinsicFunctions>true</IntrinsicFunctions>
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<PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
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<ConformanceMode>true</ConformanceMode>
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<Link>
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<SubSystem>Console</SubSystem>
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‎c++/SharedMemory2/SharedMemory2.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 16
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VisualStudioVersion = 16.0.31624.102
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MinimumVisualStudioVersion = 10.0.40219.1
6+
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "SharedMemory2", "SharedMemory2\SharedMemory2.vcxproj", "{C73D77F2-30B0-4BCF-BF88-7E9D96E93053}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|x64 = Debug|x64
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Debug|x86 = Debug|x86
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Release|x64 = Release|x64
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Release|x86 = Release|x86
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{C73D77F2-30B0-4BCF-BF88-7E9D96E93053}.Debug|x64.ActiveCfg = Debug|x64
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{C73D77F2-30B0-4BCF-BF88-7E9D96E93053}.Debug|x64.Build.0 = Debug|x64
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{C73D77F2-30B0-4BCF-BF88-7E9D96E93053}.Debug|x86.ActiveCfg = Debug|Win32
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{C73D77F2-30B0-4BCF-BF88-7E9D96E93053}.Debug|x86.Build.0 = Debug|Win32
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{C73D77F2-30B0-4BCF-BF88-7E9D96E93053}.Release|x64.ActiveCfg = Release|x64
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{C73D77F2-30B0-4BCF-BF88-7E9D96E93053}.Release|x64.Build.0 = Release|x64
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{C73D77F2-30B0-4BCF-BF88-7E9D96E93053}.Release|x86.ActiveCfg = Release|Win32
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{C73D77F2-30B0-4BCF-BF88-7E9D96E93053}.Release|x86.Build.0 = Release|Win32
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {61F4DEB7-EB3E-4DBF-9B66-400B5D0756CA}
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EndGlobalSection
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EndGlobal

‎c++/SharedMemory2/SharedMemory2/SharedMemory2.cpp‎

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// SharedMemory2.cpp : This file contains the 'main' function. Program execution begins and ends there.
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//
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#include <iostream>
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#include <boost/interprocess/shared_memory_object.hpp>
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#include <boost/interprocess/managed_windows_shared_memory.hpp>
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#include <boost/interprocess/sync/named_semaphore.hpp>
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#include <boost/interprocess/containers/map.hpp>
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#include <boost/interprocess/containers/vector.hpp>
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#include <boost/interprocess/allocators/allocator.hpp>
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using namespace boost::interprocess;
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typedef allocator<uint8_t, managed_windows_shared_memory::segment_manager> ShmemAllocatorV;
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typedef vector<uint8_t, ShmemAllocatorV> MyVector;
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typedef allocator<char, managed_windows_shared_memory::segment_manager> CharAllocator;
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typedef std::basic_string<char, std::char_traits<char>, CharAllocator> MyString;
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typedef MyString KeyType;
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typedef MyVector MappedType;
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typedef std::pair<const MyString, MyVector> ValueType;
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typedef allocator<ValueType, managed_windows_shared_memory::segment_manager> ShmemAllocatorMap;
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typedef map<KeyType, MappedType, std::less<KeyType>, ShmemAllocatorMap> MyMap;
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struct __Named
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{
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static inline const char* shared_memory_name = "MySharedMemory";
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static inline const char* image_map_name = "MyMap";
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static inline const char* image_vec_name = "MyVec";
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static inline const char* image_string_name = "MyString";
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};
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int main()
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{
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boost::interprocess::named_semaphore sem(open_or_create, "sem", 0);
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struct shm_remove
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{
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~shm_remove() { shared_memory_object::remove(__Named::shared_memory_name); }
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} remover;
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try
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{
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sem.wait();
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managed_windows_shared_memory segment(open_only, __Named::shared_memory_name);
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MyVector* myvector = segment.find<MyVector>(__Named::image_vec_name).first;
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std::vector<uint8_t> vec;
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std::copy(myvector->begin(), myvector->end(), std::back_inserter(vec));
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segment.destroy<MyVector>(__Named::image_map_name);
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}
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catch (const interprocess_exception& err)
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{
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std::cout << err.get_error_code() << ", " << err.what() << std::endl;
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}
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}
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// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
69+
// Debug program: F5 or Debug > Start Debugging menu
70+
71+
// Tips for Getting Started:
72+
// 1. Use the Solution Explorer window to add/manage files
73+
// 2. Use the Team Explorer window to connect to source control
74+
// 3. Use the Output window to see build output and other messages
75+
// 4. Use the Error List window to view errors
76+
// 5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
77+
// 6. In the future, to open this project again, go to File > Open > Project and select the .sln file

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