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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_NAMED_PROXY_HPP
#define BOOST_INTERPROCESS_NAMED_PROXY_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>
// interprocess/detail
#include <boost/interprocess/detail/in_place_interface.hpp>
#include <boost/interprocess/detail/mpl.hpp>
#include <boost/move/utility_core.hpp>
#ifndef BOOST_INTERPROCESS_PERFECT_FORWARDING
#include <boost/move/detail/fwd_macros.hpp>
#else
#include <boost/move/utility_core.hpp>
#include <boost/interprocess/detail/variadic_templates_tools.hpp>
#endif //#ifdef BOOST_INTERPROCESS_PERFECT_FORWARDING
#include <boost/container/detail/placement_new.hpp>
//!\file
//!Describes a proxy class that implements named allocation syntax.
namespace boost {
namespace interprocess {
namespace ipcdetail {
#ifdef BOOST_INTERPROCESS_PERFECT_FORWARDING
template<class T, bool is_iterator, class ...Args>
struct CtorArgN : public placement_destroy<T>
{
typedef bool_<is_iterator> IsIterator;
typedef CtorArgN<T, is_iterator, Args...> self_t;
typedef typename build_number_seq<sizeof...(Args)>::type index_tuple_t;
self_t& operator++()
{
this->do_increment(IsIterator(), index_tuple_t());
return *this;
}
self_t operator++(int) { return ++*this; *this; }
CtorArgN(Args && ...args)
: args_(args...)
{}
virtual void construct_n(void *mem
, std::size_t num
, std::size_t &constructed)
{
T* memory = static_cast<T*>(mem);
for(constructed = 0; constructed < num; ++constructed){
this->construct(memory++, IsIterator(), index_tuple_t());
this->do_increment(IsIterator(), index_tuple_t());
}
}
private:
template<int ...IdxPack>
void construct(void *mem, true_, const index_tuple<IdxPack...>&)
{ ::new((void*)mem, boost_container_new_t())T(*boost::forward<Args>(get<IdxPack>(args_))...); }
template<int ...IdxPack>
void construct(void *mem, false_, const index_tuple<IdxPack...>&)
{ ::new((void*)mem, boost_container_new_t())T(boost::forward<Args>(get<IdxPack>(args_))...); }
template<int ...IdxPack>
void do_increment(true_, const index_tuple<IdxPack...>&)
{
this->expansion_helper(++get<IdxPack>(args_)...);
}
template<class ...ExpansionArgs>
void expansion_helper(ExpansionArgs &&...)
{}
template<int ...IdxPack>
void do_increment(false_, const index_tuple<IdxPack...>&)
{}
tuple<Args&...> args_;
};
//!Describes a proxy class that implements named
//!allocation syntax.
template
< class SegmentManager //segment manager to construct the object
, class T //type of object to build
, bool is_iterator //passing parameters are normal object or iterators?
>
class named_proxy
{
typedef typename SegmentManager::char_type char_type;
const char_type * mp_name;
SegmentManager * mp_mngr;
mutable std::size_t m_num;
const bool m_find;
const bool m_dothrow;
public:
named_proxy(SegmentManager *mngr, const char_type *name, bool find, bool dothrow)
: mp_name(name), mp_mngr(mngr), m_num(1)
, m_find(find), m_dothrow(dothrow)
{}
template<class ...Args>
T *operator()(Args &&...args) const
{
CtorArgN<T, is_iterator, Args...> &&ctor_obj = CtorArgN<T, is_iterator, Args...>
(boost::forward<Args>(args)...);
return mp_mngr->template
generic_construct<T>(mp_name, m_num, m_find, m_dothrow, ctor_obj);
}
//This operator allows --> named_new("Name")[3]; <-- syntax
const named_proxy &operator[](std::size_t num) const
{ m_num *= num; return *this; }
};
#else //#ifdef BOOST_INTERPROCESS_PERFECT_FORWARDING
////////////////////////////////////////////////////////////////
// What the macro should generate (n == 2):
//
// template<class T, bool is_iterator, class P1, class P2>
// struct Ctor2Arg
// : public placement_destroy<T>
// {
// typedef bool_<is_iterator> IsIterator;
// typedef Ctor2Arg self_t;
//
// void do_increment(false_)
// { ++m_p1; ++m_p2; }
//
// void do_increment(true_){}
//
// self_t& operator++()
// {
// this->do_increment(IsIterator());
// return *this;
// }
//
// self_t operator++(int) { return ++*this; *this; }
//
// Ctor2Arg(const P1 &p1, const P2 &p2)
// : p1((P1 &)p_1), p2((P2 &)p_2) {}
//
// void construct(void *mem)
// { new((void*)object)T(m_p1, m_p2); }
//
// virtual void construct_n(void *mem
// , std::size_t num
// , std::size_t &constructed)
// {
// T* memory = static_cast<T*>(mem);
// for(constructed = 0; constructed < num; ++constructed){
// this->construct(memory++, IsIterator());
// this->do_increment(IsIterator());
// }
// }
//
// private:
// void construct(void *mem, true_)
// { new((void*)mem)T(*m_p1, *m_p2); }
//
// void construct(void *mem, false_)
// { new((void*)mem)T(m_p1, m_p2); }
//
// P1 &m_p1; P2 &m_p2;
// };
////////////////////////////////////////////////////////////////
#define BOOST_INTERPROCESS_NAMED_PROXY_CTORARGN(N)\
\
template<class T BOOST_MOVE_I##N BOOST_MOVE_CLASS##N > \
struct CtorArg##N : placement_destroy<T>\
{\
typedef CtorArg##N self_t;\
\
CtorArg##N ( BOOST_MOVE_UREF##N )\
BOOST_MOVE_COLON##N BOOST_MOVE_FWD_INIT##N{}\
\
virtual void construct_n(void *mem, std::size_t num, std::size_t &constructed)\
{\
T* memory = static_cast<T*>(mem);\
for(constructed = 0; constructed < num; ++constructed){\
::new((void*)memory++) T ( BOOST_MOVE_MFWD##N );\
}\
}\
\
private:\
BOOST_MOVE_MREF##N\
};\
//!
BOOST_MOVE_ITERATE_0TO9(BOOST_INTERPROCESS_NAMED_PROXY_CTORARGN)
#undef BOOST_INTERPROCESS_NAMED_PROXY_CTORARGN
#define BOOST_INTERPROCESS_NAMED_PROXY_CTORITN(N)\
\
template<class T BOOST_MOVE_I##N BOOST_MOVE_CLASS##N > \
struct CtorIt##N : public placement_destroy<T>\
{\
typedef CtorIt##N self_t;\
\
self_t& operator++()\
{ BOOST_MOVE_MINC##N; return *this; }\
\
self_t operator++(int) { return ++*this; *this; }\
\
CtorIt##N ( BOOST_MOVE_VAL##N )\
BOOST_MOVE_COLON##N BOOST_MOVE_VAL_INIT##N{}\
\
virtual void construct_n(void *mem, std::size_t num, std::size_t &constructed)\
{\
T* memory = static_cast<T*>(mem);\
for(constructed = 0; constructed < num; ++constructed){\
::new((void*)memory++) T( BOOST_MOVE_MITFWD##N );\
++(*this);\
}\
}\
\
private:\
BOOST_MOVE_MEMB##N\
};\
//!
BOOST_MOVE_ITERATE_0TO9(BOOST_INTERPROCESS_NAMED_PROXY_CTORITN)
#undef BOOST_INTERPROCESS_NAMED_PROXY_CTORITN
//!Describes a proxy class that implements named
//!allocation syntax.
template
< class SegmentManager //segment manager to construct the object
, class T //type of object to build
, bool is_iterator //passing parameters are normal object or iterators?
>
class named_proxy
{
typedef typename SegmentManager::char_type char_type;
const char_type * mp_name;
SegmentManager * mp_mngr;
mutable std::size_t m_num;
const bool m_find;
const bool m_dothrow;
public:
named_proxy(SegmentManager *mngr, const char_type *name, bool find, bool dothrow)
: mp_name(name), mp_mngr(mngr), m_num(1)
, m_find(find), m_dothrow(dothrow)
{}
#define BOOST_INTERPROCESS_NAMED_PROXY_CALL_OPERATOR(N)\
\
BOOST_MOVE_TMPL_LT##N BOOST_MOVE_CLASS##N BOOST_MOVE_GT##N \
T *operator()( BOOST_MOVE_UREF##N ) const\
{\
typedef typename if_c<is_iterator \
, CtorIt##N<T BOOST_MOVE_I##N BOOST_MOVE_TARG##N> \
, CtorArg##N<T BOOST_MOVE_I##N BOOST_MOVE_TARG##N> \
>::type ctor_obj_t;\
ctor_obj_t ctor_obj = ctor_obj_t( BOOST_MOVE_FWD##N );\
return mp_mngr->template generic_construct<T>(mp_name, m_num, m_find, m_dothrow, ctor_obj);\
}\
//
BOOST_MOVE_ITERATE_0TO9(BOOST_INTERPROCESS_NAMED_PROXY_CALL_OPERATOR)
#undef BOOST_INTERPROCESS_NAMED_PROXY_CALL_OPERATOR
////////////////////////////////////////////////////////////////////////
// What the macro should generate (n == 2)
////////////////////////////////////////////////////////////////////////
//
// template <class P1, class P2>
// T *operator()(P1 &p1, P2 &p2) const
// {
// typedef CtorArg2
// <T, is_iterator, P1, P2>
// ctor_obj_t;
// ctor_obj_t ctor_obj(p1, p2);
//
// return mp_mngr->template generic_construct<T>
// (mp_name, m_num, m_find, m_dothrow, ctor_obj);
// }
//
//////////////////////////////////////////////////////////////////////////
//This operator allows --> named_new("Name")[3]; <-- syntax
const named_proxy &operator[](std::size_t num) const
{ m_num *= num; return *this; }
};
#endif //#ifdef BOOST_INTERPROCESS_PERFECT_FORWARDING
}}} //namespace boost { namespace interprocess { namespace ipcdetail {
#include <boost/interprocess/detail/config_end.hpp>
#endif //#ifndef BOOST_INTERPROCESS_NAMED_PROXY_HPP
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