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Diffstat (limited to '3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_nt.hpp')
-rw-r--r--3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_nt.hpp107
1 files changed, 107 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_nt.hpp b/3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_nt.hpp
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+++ b/3rdParty/Boost/boost/smart_ptr/detail/sp_counted_base_nt.hpp
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+#ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
+#define BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED
+
+// MS compatible compilers support #pragma once
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1020)
+# pragma once
+#endif
+
+//
+// detail/sp_counted_base_nt.hpp
+//
+// 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)
+//
+
+#include <boost/detail/sp_typeinfo.hpp>
+
+namespace boost
+{
+
+namespace detail
+{
+
+class sp_counted_base
+{
+private:
+
+ sp_counted_base( sp_counted_base const & );
+ sp_counted_base & operator= ( sp_counted_base const & );
+
+ long use_count_; // #shared
+ long 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()
+ {
+ ++use_count_;
+ }
+
+ bool add_ref_lock() // true on success
+ {
+ if( use_count_ == 0 ) return false;
+ ++use_count_;
+ return true;
+ }
+
+ void release() // nothrow
+ {
+ if( --use_count_ == 0 )
+ {
+ dispose();
+ weak_release();
+ }
+ }
+
+ void weak_add_ref() // nothrow
+ {
+ ++weak_count_;
+ }
+
+ void weak_release() // nothrow
+ {
+ if( --weak_count_ == 0 )
+ {
+ destroy();
+ }
+ }
+
+ long use_count() const // nothrow
+ {
+ return use_count_;
+ }
+};
+
+} // namespace detail
+
+} // namespace boost
+
+#endif // #ifndef BOOST_SMART_PTR_DETAIL_SP_COUNTED_BASE_NT_HPP_INCLUDED