| ////////////////////////////////////////////////////////////////////////////// |
| // |
| // (C) Copyright Ion Gaztanaga 2009-2012. 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. |
| // |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| #ifndef BOOST_INTERPROCESS_BASIC_GLOBAL_MEMORY_HPP |
| #define BOOST_INTERPROCESS_BASIC_GLOBAL_MEMORY_HPP |
| |
| #ifndef BOOST_CONFIG_HPP |
| # include <boost/config.hpp> |
| #endif |
| # |
| #if defined(BOOST_HAS_PRAGMA_ONCE) |
| #pragma once |
| #endif |
| |
| #include <boost/interprocess/detail/config_begin.hpp> |
| #include <boost/interprocess/detail/workaround.hpp> |
| |
| #include <boost/interprocess/offset_ptr.hpp> |
| #include <boost/interprocess/sync/spin/mutex.hpp> |
| #include <boost/interprocess/sync/spin/recursive_mutex.hpp> |
| #include <boost/interprocess/detail/managed_memory_impl.hpp> |
| #include <boost/interprocess/detail/managed_open_or_create_impl.hpp> |
| #include <boost/interprocess/mem_algo/rbtree_best_fit.hpp> |
| #include <boost/interprocess/indexes/iset_index.hpp> |
| #include <boost/interprocess/creation_tags.hpp> |
| #include <boost/interprocess/permissions.hpp> |
| |
| namespace boost{ |
| namespace interprocess{ |
| namespace ipcdetail{ |
| |
| struct intermodule_singleton_mutex_family |
| { |
| typedef boost::interprocess::ipcdetail::spin_mutex mutex_type; |
| typedef boost::interprocess::ipcdetail::spin_recursive_mutex recursive_mutex_type; |
| }; |
| |
| struct intermodule_types |
| { |
| //We must use offset_ptr since a loaded DLL can map the singleton holder shared memory |
| //at a different address than other DLLs or the main executable |
| typedef rbtree_best_fit<intermodule_singleton_mutex_family, offset_ptr<void> > mem_algo; |
| template<class Device, bool FileBased> |
| struct open_or_create |
| { |
| typedef managed_open_or_create_impl |
| <Device, mem_algo::Alignment, FileBased, false> type; |
| }; |
| }; |
| |
| //we must implement our own managed shared memory to avoid circular dependencies |
| template<class Device, bool FileBased> |
| class basic_managed_global_memory |
| : public basic_managed_memory_impl |
| < char |
| , intermodule_types::mem_algo |
| , iset_index |
| , intermodule_types::open_or_create<Device, FileBased>::type::ManagedOpenOrCreateUserOffset |
| > |
| , private intermodule_types::open_or_create<Device, FileBased>::type |
| { |
| #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED) |
| typedef typename intermodule_types::template open_or_create<Device, FileBased>::type base2_t; |
| |
| typedef basic_managed_memory_impl |
| < char |
| , intermodule_types::mem_algo |
| , iset_index |
| , base2_t::ManagedOpenOrCreateUserOffset |
| > base_t; |
| |
| typedef create_open_func<base_t> create_open_func_t; |
| |
| basic_managed_global_memory *get_this_pointer() |
| { return this; } |
| |
| public: |
| typedef typename base_t::size_type size_type; |
| |
| private: |
| typedef typename base_t::char_ptr_holder_t char_ptr_holder_t; |
| BOOST_MOVABLE_BUT_NOT_COPYABLE(basic_managed_global_memory) |
| #endif //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED |
| |
| public: //functions |
| |
| basic_managed_global_memory (open_or_create_t open_or_create, |
| const char *name, size_type size, |
| const void *addr = 0, const permissions& perm = permissions()) |
| : base_t() |
| , base2_t(open_or_create, name, size, read_write, addr, |
| create_open_func_t(get_this_pointer(), |
| DoOpenOrCreate), perm) |
| {} |
| |
| basic_managed_global_memory (open_only_t open_only, const char* name, |
| const void *addr = 0) |
| : base_t() |
| , base2_t(open_only, name, read_write, addr, |
| create_open_func_t(get_this_pointer(), |
| DoOpen)) |
| {} |
| }; |
| |
| |
| } //namespace ipcdetail{ |
| } //namespace interprocess{ |
| } //namespace boost{ |
| |
| #include <boost/interprocess/detail/config_end.hpp> |
| |
| #endif //#ifndef BOOST_INTERPROCESS_BASIC_GLOBAL_MEMORY_HPP |