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sp_accept_owner added.

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[SVN r44353]
This commit is contained in:
Peter Dimov
2008-04-12 18:22:18 +00:00
parent f85a1bf406
commit 4094c23537
5 changed files with 207 additions and 59 deletions
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include/boost/enable_shared_from_this.hpp
+23 -3
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@@ -27,10 +27,10 @@ template<class T> class enable_shared_from_this
// to use lazy initialization
void init_internal_shared_once() const
{
if(owned() == false && _internal_shared_this == 0)
if( !owned() && _internal_shared_this.get() == 0 )
{
_internal_shared_this = shared_ptr<T>(dynamic_cast<T *>(const_cast<enable_shared_from_this*>(this)),
detail::sp_deleter_wrapper(), detail::ignore_enable_shared_from_this_tag());
T * p = dynamic_cast<T *>(const_cast<enable_shared_from_this*>(this));
_internal_shared_this = shared_ptr<T>( p, detail::sp_deleter_wrapper() );
BOOST_ASSERT(_internal_shared_this.get() == this);
_internal_weak_this = _internal_shared_this;
}
@@ -109,6 +109,26 @@ public:
}
};
template< class T, class Y > inline void sp_accept_owner( boost::shared_ptr<Y> * ptr, boost::enable_shared_from_this<T> const * pe )
{
if( pe != 0 )
{
pe->_internal_accept_owner( *ptr );
}
}
template< class T, class Y > inline void sp_accept_owner( boost::shared_ptr<Y> * ptr, boost::enable_shared_from_this<T> const * pe, void * /*pd*/ )
{
if( pe != 0 )
{
pe->_internal_accept_owner( *ptr );
}
}
template< class T, class Y > inline void sp_accept_owner( boost::shared_ptr<Y> * /*ptr*/, boost::enable_shared_from_this<T> const * /*pe*/, boost::detail::sp_deleter_wrapper * /*pd*/ )
{
}
} // namespace boost
#endif // #ifndef BOOST_ENABLE_SHARED_FROM_THIS_HPP_INCLUDED