-//$$CDS-header$$
+/*
+ This file is a part of libcds - Concurrent Data Structures library
+
+ (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2016
+
+ 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_CONTAINER_MICHAEL_KVLIST_NOGC_H
#define CDSLIB_CONTAINER_MICHAEL_KVLIST_NOGC_H
typedef typename base_class::item_counter item_counter; ///< Item counting policy used
typedef typename maker::key_comparator key_comparator; ///< key comparison functor
typedef typename base_class::memory_model memory_model; ///< Memory ordering. See cds::opt::memory_model option
+ typedef typename base_class::stat stat; ///< Internal statistics
+
+ //@cond
+ // Rebind traits (split-list support)
+ template <typename... Options>
+ struct rebind_traits {
+ typedef MichaelKVList<
+ gc
+ , key_type, mapped_type
+ , typename cds::opt::make_options< traits, Options...>::type
+ > type;
+ };
+
+ // Stat selector
+ template <typename Stat>
+ using select_stat_wrapper = typename base_class::template select_stat_wrapper< Stat >;
+ //@endcond
protected:
//@cond
typedef typename maker::intrusive_traits::compare intrusive_key_comparator;
typedef typename base_class::atomic_node_ptr head_type;
- //@endcond
-
- protected:
- //@cond
- template <typename K>
- static node_type * alloc_node(const K& key)
- {
- return cxx_allocator().New( key );
- }
-
- template <typename K, typename V>
- static node_type * alloc_node( const K& key, const V& val )
- {
- return cxx_allocator().New( key, val );
- }
-
- template <typename K, typename... Args>
- static node_type * alloc_node( K&& key, Args&&... args )
- {
- return cxx_allocator().MoveNew( std::forward<K>(key), std::forward<Args>(args)... );
- }
-
- static void free_node( node_type * pNode )
- {
- cxx_allocator().Delete( pNode );
- }
struct node_disposer {
void operator()( node_type * pNode )
}
};
typedef std::unique_ptr< node_type, node_disposer > scoped_node_ptr;
-
- head_type& head()
- {
- return base_class::m_pHead;
- }
-
- head_type const& head() const
- {
- return base_class::m_pHead;
- }
//@endcond
protected:
//@endcond
public:
+ ///@name Forward iterators
+ //@{
/// Forward iterator
/**
- The forward iterator for Michael's list based on gc::nogc has pre- and post-increment operators.
+ The forward iterator is safe: you may use it in multi-threaded enviromnent without any synchronization.
+
+ The forward iterator for Michael's list based on \p gc::nogc has pre- and post-increment operators.
The iterator interface to access item data:
- - <tt> operator -> </tt> - returns a pointer to \ref value_type for iterator
- - <tt> operator *</tt> - returns a reference (a const reference for \p const_iterator) to \ref value_type for iterator
+ - <tt> operator -> </tt> - returns a pointer to \p value_type
+ - <tt> operator *</tt> - returns a reference (a const reference for \p const_iterator) to \p value_type
- <tt> const key_type& key() </tt> - returns a key reference for iterator
- <tt> mapped_type& val() </tt> - retuns a value reference for iterator (const reference for \p const_iterator)
- For both functions the iterator should not be equal to <tt> end() </tt>
+ For both functions the iterator should not be equal to \p end().
+
+ @note \p end() iterator is not dereferenceable
*/
typedef iterator_type<false> iterator;
}
/// Returns a forward const iterator addressing the first element in a list
- //@{
const_iterator begin() const
{
return const_iterator( head() );
}
+ /// Returns a forward const iterator addressing the first element in a list
const_iterator cbegin() const
{
return const_iterator( head() );
}
- //@}
/// Returns an const iterator that addresses the location succeeding the last element in a list
- //@{
const_iterator end() const
{
return const_iterator();
}
+ /// Returns an const iterator that addresses the location succeeding the last element in a list
const_iterator cend() const
{
return const_iterator();
}
- //@}
-
- protected:
- //@cond
- iterator node_to_iterator( node_type * pNode )
- {
- if ( pNode )
- return iterator( *pNode );
- return end();
- }
- //@endcond
+ //@}
public:
/// Default constructor
MichaelKVList()
{}
- /// List desctructor
+ //@cond
+ template <typename Stat, typename = std::enable_if<std::is_same<stat, michael_list::wrapped_stat<Stat>>::value >>
+ explicit MichaelKVList( Stat& st )
+ : base_class( st )
+ {}
+ //@endcond
+
+ /// List destructor
/**
Clears the list
*/
/// Updates the item
/**
- If \p key is not in the list and \p bAllowInsert is \p true,
+ If \p key is not in the list and \p bAllowInsert is \p true,
+
the function inserts a new item.
Otherwise, the function returns an iterator pointing to the item found.
return std::make_pair( node_to_iterator( ret.first ), ret.second );
}
//@cond
- // Deprecated, use update()
template <typename K>
+ CDS_DEPRECATED("ensure() is deprecated, use update()")
std::pair<iterator, bool> ensure( K const& key )
{
return update( key );
return node_to_iterator( find_at( head(), key, intrusive_key_comparator() ) );
}
//@cond
- // Deprecated, use contains()
template <typename Q>
+ CDS_DEPRECATED("deprecated, use contains()")
iterator find( Q const& key )
{
return contains( key );
return node_to_iterator( find_at( head(), key, typename maker::template less_wrapper<Less>::type() ) );
}
//@cond
- // Deprecated, use contains()
template <typename Q, typename Less>
+ CDS_DEPRECATED("deprecated, use contains()")
iterator find_with( Q const& key, Less pred )
{
return contains( key, pred );
return base_class::size();
}
+ /// Returns const reference to internal statistics
+ stat const& statistics() const
+ {
+ return base_class::statistics();
+ }
+
/// Clears the list
void clear()
{
scoped_node_ptr pNode( alloc_node( key ));
node_type * pItemFound = nullptr;
- std::pair<bool, bool> ret = base_class::update_at( refHead, *pNode,
+ std::pair<bool, bool> ret = base_class::update_at( refHead, *pNode,
+
[&pItemFound](bool, node_type& item, node_type&){ pItemFound = &item; },
bAllowInsert );
- assert( pItemFound != nullptr );
- if ( ret.first && ret.second )
+ if ( ret.second )
pNode.release();
return std::make_pair( pItemFound, ret.second );
}
{
return base_class::find_at( refHead, key, cmp );
}
+
+ template <typename K>
+ static node_type * alloc_node( const K& key )
+ {
+ return cxx_allocator().New( key );
+ }
+
+ template <typename K, typename V>
+ static node_type * alloc_node( const K& key, const V& val )
+ {
+ return cxx_allocator().New( key, val );
+ }
+
+ template <typename K, typename... Args>
+ static node_type * alloc_node( K&& key, Args&&... args )
+ {
+ return cxx_allocator().MoveNew( std::forward<K>( key ), std::forward<Args>( args )... );
+ }
+
+ static void free_node( node_type * pNode )
+ {
+ cxx_allocator().Delete( pNode );
+ }
+
+ head_type& head()
+ {
+ return base_class::m_pHead;
+ }
+
+ head_type const& head() const
+ {
+ return base_class::m_pHead;
+ }
+
+ iterator node_to_iterator( node_type * pNode )
+ {
+ if ( pNode )
+ return iterator( *pNode );
+ return end();
+ }
//@endcond
};