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Diffstat (limited to 'src/libs/boost-1.37.0/boost/detail/sp_counted_base_solaris.hpp')
-rw-r--r-- | src/libs/boost-1.37.0/boost/detail/sp_counted_base_solaris.hpp | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/src/libs/boost-1.37.0/boost/detail/sp_counted_base_solaris.hpp b/src/libs/boost-1.37.0/boost/detail/sp_counted_base_solaris.hpp deleted file mode 100644 index a747b391..00000000 --- a/src/libs/boost-1.37.0/boost/detail/sp_counted_base_solaris.hpp +++ /dev/null @@ -1,113 +0,0 @@ -#ifndef BOOST_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED -#define BOOST_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED - -// -// detail/sp_counted_base_solaris.hpp -// based on: detail/sp_counted_base_w32.hpp -// -// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd. -// Copyright 2004-2005 Peter Dimov -// Copyright 2006 Michael van der Westhuizen -// -// 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) -// -// -// Lock-free algorithm by Alexander Terekhov -// -// Thanks to Ben Hitchings for the #weak + (#shared != 0) -// formulation -// - -#include <boost/detail/sp_typeinfo.hpp> -#include <atomic.h> - -namespace boost -{ - -namespace detail -{ - -class sp_counted_base -{ -private: - - sp_counted_base( sp_counted_base const & ); - sp_counted_base & operator= ( sp_counted_base const & ); - - uint32_t use_count_; // #shared - uint32_t weak_count_; // #weak + (#shared != 0) - -public: - - sp_counted_base(): use_count_( 1 ), weak_count_( 1 ) - { - } - - virtual ~sp_counted_base() // nothrow - { - } - - // dispose() is called when use_count_ drops to zero, to release - // the resources managed by *this. - - virtual void dispose() = 0; // nothrow - - // destroy() is called when weak_count_ drops to zero. - - virtual void destroy() // nothrow - { - delete this; - } - - virtual void * get_deleter( sp_typeinfo const & ti ) = 0; - - void add_ref_copy() - { - atomic_inc_32( &use_count_ ); - } - - bool add_ref_lock() // true on success - { - for( ;; ) - { - uint32_t tmp = static_cast< uint32_t const volatile& >( use_count_ ); - if( tmp == 0 ) return false; - if( atomic_cas_32( &use_count_, tmp, tmp + 1 ) == tmp ) return true; - } - } - - void release() // nothrow - { - if( atomic_dec_32_nv( &use_count_ ) == 0 ) - { - dispose(); - weak_release(); - } - } - - void weak_add_ref() // nothrow - { - atomic_inc_32( &weak_count_ ); - } - - void weak_release() // nothrow - { - if( atomic_dec_32_nv( &weak_count_ ) == 0 ) - { - destroy(); - } - } - - long use_count() const // nothrow - { - return static_cast<long const volatile &>( use_count_ ); - } -}; - -} // namespace detail - -} // namespace boost - -#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_SOLARIS_HPP_INCLUDED |