From 8e761289a2446367267c6c0d9a26e734f0f78306 Mon Sep 17 00:00:00 2001 From: Karen Arutyunov Date: Wed, 16 Dec 2020 20:29:05 +0300 Subject: Get rid of legacy build systems and rename cutl/ to libcutl/ --- .../smart_ptr/detail/sp_counted_base_gcc_ppc.hpp | 182 --------------------- 1 file changed, 182 deletions(-) delete mode 100644 cutl/details/boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp (limited to 'cutl/details/boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp') diff --git a/cutl/details/boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp b/cutl/details/boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp deleted file mode 100644 index a302b3a..0000000 --- a/cutl/details/boost/smart_ptr/detail/sp_counted_base_gcc_ppc.hpp +++ /dev/null @@ -1,182 +0,0 @@ -#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED -#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED - -// MS compatible compilers support #pragma once - -#if defined(_MSC_VER) && (_MSC_VER >= 1020) -# pragma once -#endif - -// -// detail/sp_counted_base_gcc_ppc.hpp - g++ on PowerPC -// -// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd. -// Copyright 2004-2005 Peter Dimov -// -// 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 - -namespace cutl_details_boost -{ - -namespace detail -{ - -inline void atomic_increment( int * pw ) -{ - // ++*pw; - - int tmp; - - __asm__ - ( - "0:\n\t" - "lwarx %1, 0, %2\n\t" - "addi %1, %1, 1\n\t" - "stwcx. %1, 0, %2\n\t" - "bne- 0b": - - "=m"( *pw ), "=&b"( tmp ): - "r"( pw ), "m"( *pw ): - "cc" - ); -} - -inline int atomic_decrement( int * pw ) -{ - // return --*pw; - - int rv; - - __asm__ __volatile__ - ( - "sync\n\t" - "0:\n\t" - "lwarx %1, 0, %2\n\t" - "addi %1, %1, -1\n\t" - "stwcx. %1, 0, %2\n\t" - "bne- 0b\n\t" - "isync": - - "=m"( *pw ), "=&b"( rv ): - "r"( pw ), "m"( *pw ): - "memory", "cc" - ); - - return rv; -} - -inline int atomic_conditional_increment( int * pw ) -{ - // if( *pw != 0 ) ++*pw; - // return *pw; - - int rv; - - __asm__ - ( - "0:\n\t" - "lwarx %1, 0, %2\n\t" - "cmpwi %1, 0\n\t" - "beq 1f\n\t" - "addi %1, %1, 1\n\t" - "1:\n\t" - "stwcx. %1, 0, %2\n\t" - "bne- 0b": - - "=m"( *pw ), "=&b"( rv ): - "r"( pw ), "m"( *pw ): - "cc" - ); - - return rv; -} - -class sp_counted_base -{ -private: - - sp_counted_base( sp_counted_base const & ); - sp_counted_base & operator= ( sp_counted_base const & ); - - int use_count_; // #shared - int 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; - virtual void * get_untyped_deleter() = 0; - - void add_ref_copy() - { - atomic_increment( &use_count_ ); - } - - bool add_ref_lock() // true on success - { - return atomic_conditional_increment( &use_count_ ) != 0; - } - - void release() // nothrow - { - if( atomic_decrement( &use_count_ ) == 0 ) - { - dispose(); - weak_release(); - } - } - - void weak_add_ref() // nothrow - { - atomic_increment( &weak_count_ ); - } - - void weak_release() // nothrow - { - if( atomic_decrement( &weak_count_ ) == 0 ) - { - destroy(); - } - } - - long use_count() const // nothrow - { - return static_cast( use_count_ ); - } -}; - -} // namespace detail - -} // namespace cutl_details_boost - -#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_GCC_PPC_HPP_INCLUDED -- cgit v1.1