...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::interprocess::basic_managed_windows_shared_memory
// In header: <boost/interprocess/managed_windows_shared_memory.hpp> template<typename CharType, typename AllocationAlgorithm, template< class IndexConfig > class IndexType> class basic_managed_windows_shared_memory { public: // construct/copy/destruct basic_managed_windows_shared_memory(); basic_managed_windows_shared_memory(create_only_t, const char *, std::size_t, const void * = 0); basic_managed_windows_shared_memory(open_or_create_t, const char *, std::size_t, const void * = 0); basic_managed_windows_shared_memory(open_only_t, const char *, const void * = 0); basic_managed_windows_shared_memory(open_copy_on_write_t, const char *, const void * = 0); basic_managed_windows_shared_memory(open_read_only_t, const char *, const void * = 0); basic_managed_windows_shared_memory(basic_managed_windows_shared_memory &&); basic_managed_windows_shared_memory& operator=(basic_managed_windows_shared_memory &&); ~basic_managed_windows_shared_memory(); // public member functions void swap(basic_managed_windows_shared_memory &) ; };
A basic managed windows shared memory creation class. Initializes the shared memory segment. Inherits all basic functionality from basic_managed_memory_impl<CharType, AllocationAlgorithm, IndexType> Unlike basic_managed_shared_memory, it has no kernel persistence and the shared memory is destroyed when all processes destroy all their windows_shared_memory objects and mapped regions for the same shared memory or the processes end/crash.
Warning: basic_managed_windows_shared_memory and basic_managed_shared_memory can't communicate between them.
basic_managed_windows_shared_memory
public
construct/copy/destructbasic_managed_windows_shared_memory();
Default constructor. Does nothing. Useful in combination with move semantics
basic_managed_windows_shared_memory(create_only_t create_only, const char * name, std::size_t size, const void * addr = 0);
Creates shared memory and creates and places the segment manager. This can throw.
basic_managed_windows_shared_memory(open_or_create_t open_or_create, const char * name, std::size_t size, const void * addr = 0);
Creates shared memory and creates and places the segment manager if segment was not created. If segment was created it connects to the segment. This can throw.
basic_managed_windows_shared_memory(open_only_t open_only, const char * name, const void * addr = 0);
Connects to a created shared memory and its segment manager. This can throw.
basic_managed_windows_shared_memory(open_copy_on_write_t, const char * name, const void * addr = 0);
Connects to a created shared memory and its segment manager in copy_on_write mode. This can throw.
basic_managed_windows_shared_memory(open_read_only_t, const char * name, const void * addr = 0);
Connects to a created shared memory and its segment manager in read-only mode. This can throw.
basic_managed_windows_shared_memory(basic_managed_windows_shared_memory && moved);
Moves the ownership of "moved"'s managed memory to *this. Does not throw
basic_managed_windows_shared_memory& operator=(basic_managed_windows_shared_memory && moved);
Moves the ownership of "moved"'s managed memory to *this. Does not throw
~basic_managed_windows_shared_memory();
Destroys *this and indicates that the calling process is finished using the resource. All mapped regions are still valid after destruction. When all mapped regions and basic_managed_windows_shared_memory objects referring the shared memory are destroyed, the operating system will destroy the shared memory.
basic_managed_windows_shared_memory
public member functionsvoid swap(basic_managed_windows_shared_memory & other) ;
Swaps the ownership of the managed mapped memories managed by *this and other. Never throws.