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authorKaren Arutyunov <karen@codesynthesis.com>2020-12-16 20:29:05 +0300
committerKaren Arutyunov <karen@codesynthesis.com>2021-02-24 16:40:04 +0300
commit8e761289a2446367267c6c0d9a26e734f0f78306 (patch)
treefb495d8c18801f271d124ee48731f10df396ca89 /cutl/details/boost/smart_ptr/detail/sp_counted_base_spin.hpp
parent4c8104756b92b9fa16b3a725e8a6aa620dfd606e (diff)
Get rid of legacy build systems and rename cutl/ to libcutl/
Diffstat (limited to 'cutl/details/boost/smart_ptr/detail/sp_counted_base_spin.hpp')
-rw-r--r--cutl/details/boost/smart_ptr/detail/sp_counted_base_spin.hpp132
1 files changed, 0 insertions, 132 deletions
diff --git a/cutl/details/boost/smart_ptr/detail/sp_counted_base_spin.hpp b/cutl/details/boost/smart_ptr/detail/sp_counted_base_spin.hpp
deleted file mode 100644
index 0f95421..0000000
--- a/cutl/details/boost/smart_ptr/detail/sp_counted_base_spin.hpp
+++ /dev/null
@@ -1,132 +0,0 @@
-#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
-#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED
-
-// MS compatible compilers support #pragma once
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1020)
-# pragma once
-#endif
-
-//
-// detail/sp_counted_base_spin.hpp - spinlock pool atomic emulation
-//
-// Copyright (c) 2001, 2002, 2003 Peter Dimov and Multi Media Ltd.
-// Copyright 2004-2008 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)
-//
-
-#include <cutl/details/boost/detail/sp_typeinfo.hpp>
-#include <cutl/details/boost/smart_ptr/detail/spinlock_pool.hpp>
-
-namespace cutl_details_boost
-{
-
-namespace detail
-{
-
-inline int atomic_exchange_and_add( int * pw, int dv )
-{
- spinlock_pool<1>::scoped_lock lock( pw );
-
- int r = *pw;
- *pw += dv;
- return r;
-}
-
-inline void atomic_increment( int * pw )
-{
- spinlock_pool<1>::scoped_lock lock( pw );
- ++*pw;
-}
-
-inline int atomic_conditional_increment( int * pw )
-{
- spinlock_pool<1>::scoped_lock lock( pw );
-
- int rv = *pw;
- if( rv != 0 ) ++*pw;
- 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_exchange_and_add( &use_count_, -1 ) == 1 )
- {
- dispose();
- weak_release();
- }
- }
-
- void weak_add_ref() // nothrow
- {
- atomic_increment( &weak_count_ );
- }
-
- void weak_release() // nothrow
- {
- if( atomic_exchange_and_add( &weak_count_, -1 ) == 1 )
- {
- destroy();
- }
- }
-
- long use_count() const // nothrow
- {
- spinlock_pool<1>::scoped_lock lock( &use_count_ );
- return use_count_;
- }
-};
-
-} // namespace detail
-
-} // namespace cutl_details_boost
-
-#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_SPIN_HPP_INCLUDED