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Diffstat (limited to '3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp')
m--------- | 3rdParty/Boost | 0 | ||||
-rw-r--r-- | 3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp | 172 |
2 files changed, 0 insertions, 172 deletions
diff --git a/3rdParty/Boost b/3rdParty/Boost new file mode 160000 +Subproject 3bbdbc8cf1996f23d9a366da8bac0f97be6ad79 diff --git a/3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp b/3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp deleted file mode 100644 index 0c69b0b..0000000 --- a/3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp +++ /dev/null @@ -1,172 +0,0 @@ -#ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_MIPS_HPP_INCLUDED -#define BOOST_DETAIL_SP_COUNTED_BASE_GCC_MIPS_HPP_INCLUDED - -// MS compatible compilers support #pragma once - -#if defined(_MSC_VER) && (_MSC_VER >= 1020) -# pragma once -#endif - -// -// detail/sp_counted_base_gcc_mips.hpp - g++ on MIPS -// -// Copyright (c) 2009, Spirent Communications, Inc. -// -// 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 -// - -#include <boost/detail/sp_typeinfo.hpp> - -namespace boost -{ - -namespace detail -{ - -inline void atomic_increment( int * pw ) -{ - // ++*pw; - - int tmp; - - __asm__ __volatile__ - ( - "0:\n\t" - "ll %0, %1\n\t" - "addiu %0, 1\n\t" - "sc %0, %1\n\t" - "beqz %0, 0b": - "=&r"( tmp ), "=m"( *pw ): - "m"( *pw ) - ); -} - -inline int atomic_decrement( int * pw ) -{ - // return --*pw; - - int rv, tmp; - - __asm__ __volatile__ - ( - "0:\n\t" - "ll %1, %2\n\t" - "addiu %0, %1, -1\n\t" - "sc %0, %2\n\t" - "beqz %0, 0b\n\t" - "addiu %0, %1, -1": - "=&r"( rv ), "=&r"( tmp ), "=m"( *pw ): - "m"( *pw ): - "memory" - ); - - return rv; -} - -inline int atomic_conditional_increment( int * pw ) -{ - // if( *pw != 0 ) ++*pw; - // return *pw; - - int rv, tmp; - - __asm__ __volatile__ - ( - "0:\n\t" - "ll %0, %2\n\t" - "beqz %0, 1f\n\t" - "addiu %1, %0, 1\n\t" - "sc %1, %2\n\t" - "beqz %1, 0b\n\t" - "addiu %0, %0, 1\n\t" - "1:": - "=&r"( rv ), "=&r"( tmp ), "=m"( *pw ): - "m"( *pw ): - "memory" - ); - - 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; - - 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<int const volatile &>( use_count_ ); - } -}; - -} // namespace detail - -} // namespace boost - -#endif // #ifndef BOOST_DETAIL_SP_COUNTED_BASE_GCC_MIPS_HPP_INCLUDED |