author | Alex Gilkes <alex.gilkes@nokia.com> |
Tue, 27 Oct 2009 16:36:35 +0000 | |
changeset 0 | 044383f39525 |
permissions | -rw-r--r-- |
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#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED |
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#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED |
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// MS compatible compilers support #pragma once |
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#if defined(_MSC_VER) && (_MSC_VER >= 1020) |
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# pragma once |
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#endif |
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// |
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// detail/sp_counted_impl.hpp |
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// |
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// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd. |
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// Copyright 2004-2005 Peter Dimov |
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// |
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// Distributed under the Boost Software License, Version 1.0. (See |
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// accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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#include <boost/config.hpp> |
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#if defined(BOOST_SP_USE_STD_ALLOCATOR) && defined(BOOST_SP_USE_QUICK_ALLOCATOR) |
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# error BOOST_SP_USE_STD_ALLOCATOR and BOOST_SP_USE_QUICK_ALLOCATOR are incompatible. |
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#endif |
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#include <boost/checked_delete.hpp> |
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#include <boost/smart_ptr/detail/sp_counted_base.hpp> |
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#if defined(BOOST_SP_USE_QUICK_ALLOCATOR) |
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#include <boost/smart_ptr/detail/quick_allocator.hpp> |
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#endif |
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#if defined(BOOST_SP_USE_STD_ALLOCATOR) |
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#include <memory> // std::allocator |
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#endif |
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#include <cstddef> // std::size_t |
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namespace boost |
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{ |
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#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS) |
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void sp_scalar_constructor_hook( void * px, std::size_t size, void * pn ); |
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void sp_scalar_destructor_hook( void * px, std::size_t size, void * pn ); |
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#endif |
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namespace detail |
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{ |
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template<class X> class sp_counted_impl_p: public sp_counted_base |
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{ |
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private: |
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X * px_; |
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sp_counted_impl_p( sp_counted_impl_p const & ); |
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sp_counted_impl_p & operator= ( sp_counted_impl_p const & ); |
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typedef sp_counted_impl_p<X> this_type; |
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public: |
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explicit sp_counted_impl_p( X * px ): px_( px ) |
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{ |
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#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS) |
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boost::sp_scalar_constructor_hook( px, sizeof(X), this ); |
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#endif |
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} |
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virtual void dispose() // nothrow |
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{ |
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#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS) |
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boost::sp_scalar_destructor_hook( px_, sizeof(X), this ); |
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#endif |
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boost::checked_delete( px_ ); |
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} |
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virtual void * get_deleter( detail::sp_typeinfo const & ) |
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{ |
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return 0; |
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} |
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#if defined(BOOST_SP_USE_STD_ALLOCATOR) |
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void * operator new( std::size_t ) |
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{ |
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return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) ); |
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} |
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void operator delete( void * p ) |
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{ |
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std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 ); |
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} |
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#endif |
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#if defined(BOOST_SP_USE_QUICK_ALLOCATOR) |
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void * operator new( std::size_t ) |
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{ |
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return quick_allocator<this_type>::alloc(); |
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} |
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void operator delete( void * p ) |
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{ |
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quick_allocator<this_type>::dealloc( p ); |
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} |
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#endif |
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}; |
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// |
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// Borland's Codeguard trips up over the -Vx- option here: |
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// |
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#ifdef __CODEGUARD__ |
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# pragma option push -Vx- |
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#endif |
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template<class P, class D> class sp_counted_impl_pd: public sp_counted_base |
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{ |
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private: |
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P ptr; // copy constructor must not throw |
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D del; // copy constructor must not throw |
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sp_counted_impl_pd( sp_counted_impl_pd const & ); |
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sp_counted_impl_pd & operator= ( sp_counted_impl_pd const & ); |
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typedef sp_counted_impl_pd<P, D> this_type; |
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public: |
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// pre: d(p) must not throw |
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sp_counted_impl_pd( P p, D d ): ptr(p), del(d) |
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{ |
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} |
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virtual void dispose() // nothrow |
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{ |
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del( ptr ); |
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} |
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virtual void * get_deleter( detail::sp_typeinfo const & ti ) |
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{ |
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return ti == BOOST_SP_TYPEID(D)? &reinterpret_cast<char&>( del ): 0; |
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} |
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#if defined(BOOST_SP_USE_STD_ALLOCATOR) |
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void * operator new( std::size_t ) |
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{ |
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return std::allocator<this_type>().allocate( 1, static_cast<this_type *>(0) ); |
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} |
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void operator delete( void * p ) |
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{ |
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std::allocator<this_type>().deallocate( static_cast<this_type *>(p), 1 ); |
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} |
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#endif |
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#if defined(BOOST_SP_USE_QUICK_ALLOCATOR) |
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void * operator new( std::size_t ) |
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{ |
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return quick_allocator<this_type>::alloc(); |
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} |
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void operator delete( void * p ) |
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{ |
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quick_allocator<this_type>::dealloc( p ); |
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} |
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#endif |
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}; |
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template<class P, class D, class A> class sp_counted_impl_pda: public sp_counted_base |
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{ |
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private: |
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P p_; // copy constructor must not throw |
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D d_; // copy constructor must not throw |
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A a_; // copy constructor must not throw |
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sp_counted_impl_pda( sp_counted_impl_pda const & ); |
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sp_counted_impl_pda & operator= ( sp_counted_impl_pda const & ); |
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typedef sp_counted_impl_pda<P, D, A> this_type; |
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public: |
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// pre: d( p ) must not throw |
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sp_counted_impl_pda( P p, D d, A a ): p_( p ), d_( d ), a_( a ) |
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{ |
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} |
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virtual void dispose() // nothrow |
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{ |
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d_( p_ ); |
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} |
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virtual void destroy() // nothrow |
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{ |
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typedef typename A::template rebind< this_type >::other A2; |
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A2 a2( a_ ); |
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this->~this_type(); |
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a2.deallocate( this, 1 ); |
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} |
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virtual void * get_deleter( detail::sp_typeinfo const & ti ) |
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{ |
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return ti == BOOST_SP_TYPEID( D )? &reinterpret_cast<char&>( d_ ): 0; |
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} |
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}; |
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#ifdef __CODEGUARD__ |
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# pragma option pop |
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#endif |
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} // namespace detail |
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} // namespace boost |
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#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_IMPL_HPP_INCLUDED |