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- //////////////////////////////////////////////////////////////////////////////
- //
- // (C) Copyright Ion Gaztanaga 2007-2012. 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_SYNC_NAMED_CREATION_FUNCTOR_HPP
- #define BOOST_INTERPROCESS_SYNC_NAMED_CREATION_FUNCTOR_HPP
- #ifndef BOOST_CONFIG_HPP
- # include <boost/config.hpp>
- #endif
- #
- #if defined(BOOST_HAS_PRAGMA_ONCE)
- # pragma once
- #endif
- #include <boost/interprocess/creation_tags.hpp>
- #include <boost/interprocess/detail/type_traits.hpp>
- #include <boost/interprocess/detail/mpl.hpp>
- #include <boost/container/detail/placement_new.hpp>
- namespace boost {
- namespace interprocess {
- namespace ipcdetail {
- struct named_creation_functor_no_arg{};
- template <class T, class Arg = named_creation_functor_no_arg>
- class named_creation_functor
- {
- typedef named_creation_functor_no_arg no_arg_t;
- public:
- named_creation_functor(create_enum_t type, Arg arg = Arg())
- : m_creation_type(type), m_arg(arg){}
- template<class ArgType>
- void construct(void *address, typename enable_if_c<is_same<ArgType, no_arg_t>::value>::type * = 0) const
- { ::new(address, boost_container_new_t())T; }
- template<class ArgType>
- void construct(void *address, typename enable_if_c<!is_same<ArgType, no_arg_t>::value>::type * = 0) const
- { ::new(address, boost_container_new_t())T(m_arg); }
- bool operator()(void *address, std::size_t, bool created) const
- {
- switch(m_creation_type){
- case DoOpen:
- return true;
- break;
- case DoCreate:
- case DoOpenOrCreate:
- if(created){
- construct<Arg>(address);
- }
- return true;
- break;
- default:
- return false;
- break;
- }
- }
- static std::size_t get_min_size()
- { return sizeof(T); }
- private:
- create_enum_t m_creation_type;
- Arg m_arg;
- };
- } //namespace ipcdetail {
- } //namespace interprocess {
- } //namespace boost {
- #endif //BOOST_INTERPROCESS_SYNC_NAMED_CREATION_FUNCTOR_HPP
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