--- /dev/null
+/*
+ This file is a part of libcds - Concurrent Data Structures library
+
+ (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2017
+
+ Source code repo: http://github.com/khizmax/libcds/
+ Download: http://sourceforge.net/projects/libcds/files/
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef CDSLIB_INTRUSIVE_DETAILS_NODE_TRAITS_H
+#define CDSLIB_INTRUSIVE_DETAILS_NODE_TRAITS_H
+
+#include <cds/intrusive/options.h>
+
+namespace cds { namespace intrusive {
+
+#ifdef CDS_DOXYGEN_INVOKED
+ /// Container's node traits
+ /** @ingroup cds_intrusive_helper
+ This traits is intended for converting between type \p T of value stored in the intrusive container
+ and container's node type \p NodeType.
+
+ There are separate specializations for each \p Hook type.
+ */
+ template <typename T, typename NodeType, typename Hook>
+ struct node_traits
+ {
+ typedef T value_type ; ///< Value type
+ typedef NodeType node_type ; ///< Node type
+
+ /// Convert value reference to node pointer
+ static node_type * to_node_ptr( value_type& v );
+
+ /// Convert value pointer to node pointer
+ static node_type * to_node_ptr( value_type * v );
+
+ /// Convert value reference to node pointer (const version)
+ static const node_type * to_node_ptr( value_type const& v );
+
+ /// Convert value pointer to node pointer (const version)
+ static const node_type * to_node_ptr( value_type const * v );
+
+ /// Convert node refernce to value pointer
+ static value_type * to_value_ptr( node_type& n );
+
+ /// Convert node pointer to value pointer
+ static value_type * to_value_ptr( node_type * n );
+
+ /// Convert node reference to value pointer (const version)
+ static const value_type * to_value_ptr( node_type const & n );
+
+ /// Convert node pointer to value pointer (const version)
+ static const value_type * to_value_ptr( node_type const * n );
+ };
+
+#else
+ template <typename T, typename NodeType, class Hook, typename HookType>
+ struct node_traits;
+#endif
+
+ //@cond
+ template <typename T, typename NodeType, class Hook>
+ struct node_traits<T, NodeType, Hook, opt::base_hook_tag>
+ {
+ typedef T value_type;
+ typedef NodeType node_type;
+
+ static node_type * to_node_ptr( value_type& v )
+ {
+ return static_cast<node_type *>( &v );
+ }
+ static node_type * to_node_ptr( value_type * v )
+ {
+ return v ? static_cast<node_type *>(v) : nullptr;
+ }
+ static const node_type * to_node_ptr( const value_type& v )
+ {
+ return static_cast<const node_type *>( &v );
+ }
+ static const node_type * to_node_ptr( const value_type * v )
+ {
+ return v ? static_cast<const node_type *>(v) : nullptr;
+ }
+ static value_type * to_value_ptr( node_type& n )
+ {
+ return static_cast<value_type *>( &n );
+ }
+ static value_type * to_value_ptr( node_type * n )
+ {
+ return n ? static_cast<value_type *>(n) : nullptr;
+ }
+ static const value_type * to_value_ptr( const node_type& n )
+ {
+ return static_cast<const value_type *>( &n );
+ }
+ static const value_type * to_value_ptr( const node_type * n )
+ {
+ return n ? static_cast<const value_type *>(n) : nullptr;
+ }
+ };
+
+ template <typename T, typename NodeType, class Hook>
+ struct node_traits<T, NodeType, Hook, opt::member_hook_tag>
+ {
+ typedef T value_type;
+ typedef NodeType node_type;
+
+ static node_type * to_node_ptr( value_type& v )
+ {
+ return reinterpret_cast<node_type *>( reinterpret_cast<char *>(&v) + Hook::c_nMemberOffset );
+ }
+ static node_type * to_node_ptr( value_type * v )
+ {
+ return v ? to_node_ptr( *v ) : nullptr;
+ }
+ static const node_type * to_node_ptr( const value_type& v )
+ {
+ return reinterpret_cast<const node_type *>( reinterpret_cast<const char *>(&v) + Hook::c_nMemberOffset );
+ }
+ static const node_type * to_node_ptr( const value_type * v )
+ {
+ return v ? to_node_ptr( *v ) : nullptr;
+ }
+ static value_type * to_value_ptr( node_type& n )
+ {
+ return reinterpret_cast<value_type *>( reinterpret_cast<char *>(&n) - Hook::c_nMemberOffset );
+ }
+ static value_type * to_value_ptr( node_type * n )
+ {
+ return n ? to_value_ptr( *n ) : nullptr;
+ }
+ static const value_type * to_value_ptr( const node_type& n )
+ {
+ return reinterpret_cast<const value_type *>( reinterpret_cast<const char *>(&n) - Hook::c_nMemberOffset );
+ }
+ static const value_type * to_value_ptr( const node_type * n )
+ {
+ return n ? to_value_ptr( *n ) : nullptr;
+ }
+ };
+
+ template <typename T, typename NodeType, class Hook>
+ struct node_traits<T, NodeType, Hook, opt::traits_hook_tag>: public Hook::node_traits
+ {};
+ //@endcond
+
+ /// Node traits selector metafunction
+ /** @ingroup cds_intrusive_helper
+ The metafunction selects appropriate \ref node_traits specialization based on value type \p T, node type \p NodeType, and hook type \p Hook.
+ */
+ template <typename T, typename NodeType, class Hook>
+ struct get_node_traits
+ {
+ //@cond
+ typedef node_traits<T, NodeType, Hook, typename Hook::hook_type> type;
+ //@endcond
+ };
+
+ //@cond
+ /// Functor converting container's node type to value type
+ //TODO: delete
+ template <class Container>
+ struct node_to_value {
+ typename Container::value_type * operator()( typename Container::node_type * p ) const
+ {
+ typedef typename Container::node_traits node_traits;
+ return node_traits::to_value_ptr( p );
+ }
+ };
+ //@endcond
+
+}} // namespace cds::intrusuve
+
+#endif // #ifndef CDSLIB_INTRUSIVE_DETAILS_NODE_TRAITS_H
projects / c11concurrency-benchmarks.git / blobdiff