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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2005-2012. 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_IN_PLACE_INTERFACE_HPP
#define BOOST_INTERPROCESS_IN_PLACE_INTERFACE_HPP
#if defined(_MSC_VER)
# pragma once
#endif
#include <boost/interprocess/detail/config_begin.hpp>
#include <boost/interprocess/detail/workaround.hpp>
#include <boost/interprocess/detail/type_traits.hpp>
#include <boost/type_traits/alignment_of.hpp>
#include <typeinfo> //typeid
//!\file
//!Describes an abstract interface for placement construction and destruction.
namespace boost {
namespace interprocess {
namespace ipcdetail {
struct in_place_interface
{
in_place_interface(std::size_t alignm, std::size_t sz, const char *tname)
: alignment(alignm), size(sz), type_name(tname)
{}
std::size_t alignment;
std::size_t size;
const char *type_name;
virtual void construct_n(void *mem, std::size_t num, std::size_t &constructed) = 0;
virtual void destroy_n(void *mem, std::size_t num, std::size_t &destroyed) = 0;
virtual ~in_place_interface(){}
};
template<class T>
struct placement_destroy : public in_place_interface
{
placement_destroy()
: in_place_interface(::boost::alignment_of<T>::value, sizeof(T), typeid(T).name())
{}
virtual void destroy_n(void *mem, std::size_t num, std::size_t &destroyed)
{
T* memory = static_cast<T*>(mem);
for(destroyed = 0; destroyed < num; ++destroyed)
(memory++)->~T();
}
virtual void construct_n(void *, std::size_t, std::size_t &) {}
private:
void destroy(void *mem)
{ static_cast<T*>(mem)->~T(); }
};
}
}
} //namespace boost { namespace interprocess { namespace ipcdetail {
#include <boost/interprocess/detail/config_end.hpp>
#endif //#ifndef BOOST_INTERPROCESS_IN_PLACE_INTERFACE_HPP
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