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.
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef CDSLIB_INTRUSIVE_MICHAEL_SET_NOGC_H
#include <cds/intrusive/details/michael_set_base.h>
#include <cds/gc/nogc.h>
-#include <cds/details/allocator.h>
namespace cds { namespace intrusive {
class MichaelHashSet< cds::gc::nogc, OrderedList, Traits >
{
public:
- typedef cds::gc::nogc gc; ///< Garbage collector
- typedef OrderedList bucket_type; ///< Type of ordered list to be used as buckets
- typedef Traits traits; ///< Set traits
+ typedef cds::gc::nogc gc; ///< Garbage collector
+ typedef OrderedList ordered_list; ///< type of ordered list used as a bucket implementation
+ typedef Traits traits; ///< Set traits
- typedef typename bucket_type::value_type value_type; ///< type of value to be stored in the set
- typedef typename bucket_type::key_comparator key_comparator; ///< key comparing functor
- typedef typename bucket_type::disposer disposer; ///< Node disposer functor
+ typedef typename ordered_list::value_type value_type; ///< type of value to be stored in the set
+ typedef typename ordered_list::key_comparator key_comparator; ///< key comparing functor
+ typedef typename ordered_list::disposer disposer; ///< Node disposer functor
+ typedef typename ordered_list::stat stat; ///< Internal statistics
/// Hash functor for \p value_type and all its derivatives that you use
typedef typename cds::opt::v::hash_selector< typename traits::hash >::type hash;
typedef typename traits::item_counter item_counter; ///< Item counter type
+ typedef typename traits::allocator allocator; ///< Bucket table allocator
- /// Bucket table allocator
- typedef cds::details::Allocator< bucket_type, typename traits::allocator > bucket_table_allocator;
+ // GC and OrderedList::gc must be the same
+ static_assert(std::is_same<gc, typename ordered_list::gc>::value, "GC and OrderedList::gc must be the same");
- protected:
- item_counter m_ItemCounter; ///< Item counter
- hash m_HashFunctor; ///< Hash functor
- bucket_type * m_Buckets; ///< bucket table
+ // atomicity::empty_item_counter is not allowed as a item counter
+ static_assert(!std::is_same<item_counter, atomicity::empty_item_counter>::value,
+ "atomicity::empty_item_counter is not allowed as a item counter");
- private:
+ protected:
//@cond
- const size_t m_nHashBitmask;
+ typedef typename ordered_list::template select_stat_wrapper< typename ordered_list::stat > bucket_stat;
+
+ typedef typename ordered_list::template rebind_traits<
+ cds::opt::item_counter< cds::atomicity::empty_item_counter >
+ , cds::opt::stat< typename bucket_stat::wrapped_stat >
+ >::type internal_bucket_type;
+
+ typedef typename allocator::template rebind< internal_bucket_type >::other bucket_table_allocator;
+
+ hash m_HashFunctor; ///< Hash functor
+ const size_t m_nHashBitmask;
+ internal_bucket_type * m_Buckets; ///< bucket table
+ item_counter m_ItemCounter; ///< Item counter
+ typename bucket_stat::stat m_Stat; ///< Internal statistics
//@endcond
protected:
/// Returns the bucket (ordered list) for \p key
template <typename Q>
- bucket_type& bucket( Q const & key )
+ internal_bucket_type& bucket( Q const & key )
{
return m_Buckets[ hash_value( key ) ];
}
};
\endcode
*/
- typedef michael_set::details::iterator< bucket_type, false > iterator;
+ typedef michael_set::details::iterator< internal_bucket_type, false > iterator;
/// Const forward iterator
/**
For iterator's features and requirements see \ref iterator
*/
- typedef michael_set::details::iterator< bucket_type, true > const_iterator;
+ typedef michael_set::details::iterator< internal_bucket_type, true > const_iterator;
/// Returns a forward iterator addressing the first element in a set
/**
size_t nMaxItemCount, ///< estimation of max item count in the hash set
size_t nLoadFactor ///< load factor: estimation of max number of items in the bucket
) : m_nHashBitmask( michael_set::details::init_hash_bitmask( nMaxItemCount, nLoadFactor ))
+ , m_Buckets( bucket_table_allocator().allocate( bucket_count() ) )
{
- // GC and OrderedList::gc must be the same
- static_assert( std::is_same<gc, typename bucket_type::gc>::value, "GC and OrderedList::gc must be the same");
-
- // atomicity::empty_item_counter is not allowed as a item counter
- static_assert( !std::is_same<item_counter, atomicity::empty_item_counter>::value,
- "atomicity::empty_item_counter is not allowed as a item counter");
-
- m_Buckets = bucket_table_allocator().NewArray( bucket_count() );
+ for ( auto it = m_Buckets, itEnd = m_Buckets + bucket_count(); it != itEnd; ++it )
+ construct_bucket<bucket_stat>( it );
}
/// Clears hash set object and destroys it
~MichaelHashSet()
{
clear();
- bucket_table_allocator().Delete( m_Buckets, bucket_count() );
+
+ for ( auto it = m_Buckets, itEnd = m_Buckets + bucket_count(); it != itEnd; ++it )
+ it->~internal_bucket_type();
+ bucket_table_allocator().deallocate( m_Buckets, bucket_count() );
}
/// Inserts new node
return m_nHashBitmask + 1;
}
+ /// Returns const reference to internal statistics
+ stat const& statistics() const
+ {
+ return m_Stat;
+ }
+
+ private:
+ //@cond
+ template <typename Stat>
+ typename std::enable_if< Stat::empty >::type construct_bucket( internal_bucket_type * bucket )
+ {
+ new (bucket) internal_bucket_type;
+ }
+
+ template <typename Stat>
+ typename std::enable_if< !Stat::empty >::type construct_bucket( internal_bucket_type * bucket )
+ {
+ new (bucket) internal_bucket_type( m_Stat );
+ }
+ //@endcond
};
}} // namespace cds::intrusive
projects / libcds.git / blobdiff