Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: // (C) Copyright Ion Gaztanaga 2009-2012. Distributed under the Boost
Chris@16: // Software License, Version 1.0. (See accompanying file
Chris@16: // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/interprocess for documentation.
Chris@16: //
Chris@16: //////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: #ifndef BOOST_INTERPROCESS_BASIC_GLOBAL_MEMORY_HPP
Chris@16: #define BOOST_INTERPROCESS_BASIC_GLOBAL_MEMORY_HPP
Chris@16: 
Chris@101: #ifndef BOOST_CONFIG_HPP
Chris@101: #  include <boost/config.hpp>
Chris@101: #endif
Chris@101: #
Chris@101: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/interprocess/detail/config_begin.hpp>
Chris@16: #include <boost/interprocess/detail/workaround.hpp>
Chris@16: 
Chris@16: #include <boost/interprocess/offset_ptr.hpp>
Chris@16: #include <boost/interprocess/sync/spin/mutex.hpp>
Chris@16: #include <boost/interprocess/sync/spin/recursive_mutex.hpp>
Chris@16: #include <boost/interprocess/detail/managed_memory_impl.hpp>
Chris@16: #include <boost/interprocess/detail/managed_open_or_create_impl.hpp>
Chris@16: #include <boost/interprocess/mem_algo/rbtree_best_fit.hpp>
Chris@16: #include <boost/interprocess/indexes/iset_index.hpp>
Chris@16: #include <boost/interprocess/creation_tags.hpp>
Chris@16: #include <boost/interprocess/permissions.hpp>
Chris@16: 
Chris@16: namespace boost{
Chris@16: namespace interprocess{
Chris@16: namespace ipcdetail{
Chris@16: 
Chris@16: struct intermodule_singleton_mutex_family
Chris@16: {
Chris@16:    typedef boost::interprocess::ipcdetail::spin_mutex              mutex_type;
Chris@16:    typedef boost::interprocess::ipcdetail::spin_recursive_mutex    recursive_mutex_type;
Chris@16: };
Chris@16: 
Chris@16: struct intermodule_types
Chris@16: {
Chris@16:    //We must use offset_ptr since a loaded DLL can map the singleton holder shared memory
Chris@16:    //at a different address than other DLLs or the main executable
Chris@16:    typedef rbtree_best_fit<intermodule_singleton_mutex_family, offset_ptr<void> > mem_algo;
Chris@16:    template<class Device, bool FileBased>
Chris@16:    struct open_or_create
Chris@16:    {
Chris@16:       typedef managed_open_or_create_impl
Chris@16:             <Device, mem_algo::Alignment, FileBased, false> type;
Chris@16:    };
Chris@16: };
Chris@16: 
Chris@16: //we must implement our own managed shared memory to avoid circular dependencies
Chris@16: template<class Device, bool FileBased>
Chris@16: class basic_managed_global_memory
Chris@16:    : public basic_managed_memory_impl
Chris@16:       < char
Chris@16:       , intermodule_types::mem_algo
Chris@16:       , iset_index
Chris@16:       , intermodule_types::open_or_create<Device, FileBased>::type::ManagedOpenOrCreateUserOffset
Chris@16:       >
Chris@16:    , private intermodule_types::open_or_create<Device, FileBased>::type
Chris@16: {
Chris@101:    #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
Chris@16:    typedef typename intermodule_types::template open_or_create<Device, FileBased>::type base2_t;
Chris@16: 
Chris@16:    typedef basic_managed_memory_impl
Chris@16:       < char
Chris@16:       , intermodule_types::mem_algo
Chris@16:       , iset_index
Chris@16:       , base2_t::ManagedOpenOrCreateUserOffset
Chris@16:       > base_t;
Chris@16: 
Chris@16:    typedef create_open_func<base_t>        create_open_func_t;
Chris@16: 
Chris@16:    basic_managed_global_memory *get_this_pointer()
Chris@16:    {  return this;   }
Chris@16: 
Chris@16:    public:
Chris@16:    typedef typename base_t::size_type              size_type;
Chris@16: 
Chris@16:    private:
Chris@16:    typedef typename base_t::char_ptr_holder_t   char_ptr_holder_t;
Chris@16:    BOOST_MOVABLE_BUT_NOT_COPYABLE(basic_managed_global_memory)
Chris@101:    #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
Chris@16: 
Chris@16:    public: //functions
Chris@16: 
Chris@16:    basic_managed_global_memory (open_or_create_t open_or_create,
Chris@16:                               const char *name, size_type size,
Chris@16:                               const void *addr = 0, const permissions& perm = permissions())
Chris@16:       : base_t()
Chris@16:       , base2_t(open_or_create, name, size, read_write, addr,
Chris@16:                 create_open_func_t(get_this_pointer(),
Chris@16:                 DoOpenOrCreate), perm)
Chris@16:    {}
Chris@16: 
Chris@16:    basic_managed_global_memory (open_only_t open_only, const char* name,
Chris@16:                                 const void *addr = 0)
Chris@16:       : base_t()
Chris@16:       , base2_t(open_only, name, read_write, addr,
Chris@16:                 create_open_func_t(get_this_pointer(),
Chris@16:                 DoOpen))
Chris@16:    {}
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: }  //namespace ipcdetail{
Chris@16: }  //namespace interprocess{
Chris@16: }  //namespace boost{
Chris@16: 
Chris@16: #include <boost/interprocess/detail/config_end.hpp>
Chris@16: 
Chris@16: #endif   //#ifndef BOOST_INTERPROCESS_BASIC_GLOBAL_MEMORY_HPP