tbb::interface5::internal::hash_map_iterator< Container, Value > Class Template Reference

Meets requirements of a forward iterator for STL */. More...

#include <concurrent_hash_map.h>

Inheritance diagram for tbb::interface5::internal::hash_map_iterator< Container, Value >:

Collaboration diagram for tbb::interface5::internal::hash_map_iterator< Container, Value >:

Public Member Functions
	hash_map_iterator ()
	Construct undefined iterator. More...
	hash_map_iterator (const hash_map_iterator< Container, typename Container::value_type > &other)
Value &	operator * () const
Value *	operator-> () const
hash_map_iterator &	operator++ ()
hash_map_iterator	operator++ (int)
	Post increment. More...

Private Types
typedef Container	map_type
typedef Container::node	node
typedef hash_map_base::node_base	node_base
typedef hash_map_base::bucket	bucket

Private Member Functions
void	advance_to_next_bucket ()
	hash_map_iterator (const Container &map, size_t index, const bucket *b, node_base *n)

Private Attributes
const Container *	my_map
	concurrent_hash_map over which we are iterating. More...
size_t	my_index
	Index in hash table for current item. More...
const bucket *	my_bucket
	Pointer to bucket. More...
node *	my_node
	Pointer to node that has current item. More...

Friends
template<typename C , typename U >
class	hash_map_iterator
template<typename I >
class	hash_map_range
template<typename Key , typename T , typename HashCompare , typename A >
class	interface5::concurrent_hash_map
template<typename C , typename T , typename U >
bool	operator== (const hash_map_iterator< C, T > &i, const hash_map_iterator< C, U > &j)
template<typename C , typename T , typename U >
bool	operator!= (const hash_map_iterator< C, T > &i, const hash_map_iterator< C, U > &j)
template<typename C , typename T , typename U >
ptrdiff_t	operator- (const hash_map_iterator< C, T > &i, const hash_map_iterator< C, U > &j)

Detailed Description

template<typename Container, typename Value>
class tbb::interface5::internal::hash_map_iterator< Container, Value >

Meets requirements of a forward iterator for STL */.

Value is either the T or const T type of the container.

Definition at line 300 of file concurrent_hash_map.h.

Member Typedef Documentation

bucket

template<typename Container, typename Value>

typedef hash_map_base::bucket tbb::interface5::internal::hash_map_iterator< Container, Value >::bucket

private

Definition at line 306 of file concurrent_hash_map.h.

map_type

template<typename Container, typename Value>

typedef Container tbb::interface5::internal::hash_map_iterator< Container, Value >::map_type

private

Definition at line 303 of file concurrent_hash_map.h.

node

template<typename Container, typename Value>

typedef Container::node tbb::interface5::internal::hash_map_iterator< Container, Value >::node

private

Definition at line 304 of file concurrent_hash_map.h.

node_base

template<typename Container, typename Value>

typedef hash_map_base::node_base tbb::interface5::internal::hash_map_iterator< Container, Value >::node_base

private

Definition at line 305 of file concurrent_hash_map.h.

Constructor & Destructor Documentation

hash_map_iterator() [1/3]

template<typename Container , typename Value >

tbb::interface5::internal::hash_map_iterator< Container, Value >::hash_map_iterator ( const Container &  map, size_t  index, const bucket *  b, node_base *  n  )

private

Definition at line 384 of file concurrent_hash_map.h.

                                                                                                                             :
        my_map(&map),
        my_index(index),
        my_bucket(b),
        my_node( static_cast<node*>(n) )
    {
        if( b && !hash_map_base::is_valid(n) )
            advance_to_next_bucket();
    }

References tbb::interface5::internal::hash_map_iterator< Container, Value >::advance_to_next_bucket(), and tbb::interface5::internal::hash_map_base::is_valid().

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hash_map_iterator() [2/3]

template<typename Container, typename Value>

tbb::interface5::internal::hash_map_iterator< Container, Value >::hash_map_iterator ( )

inline

Construct undefined iterator.

Definition at line 361 of file concurrent_hash_map.h.

: my_map(), my_index(), my_bucket(), my_node() {}

hash_map_iterator() [3/3]

template<typename Container, typename Value>

tbb::interface5::internal::hash_map_iterator< Container, Value >::hash_map_iterator ( const hash_map_iterator< Container, typename Container::value_type > &  other )

inline

Definition at line 362 of file concurrent_hash_map.h.

                                                                                                    :
            my_map(other.my_map),
            my_index(other.my_index),
            my_bucket(other.my_bucket),
            my_node(other.my_node)
        {}

Member Function Documentation

advance_to_next_bucket()

template<typename Container, typename Value>

void tbb::interface5::internal::hash_map_iterator< Container, Value >::advance_to_next_bucket ( )

inlineprivate

Definition at line 323 of file concurrent_hash_map.h.

                                      { // TODO?: refactor to iterator_base class
            size_t k = my_index+1;
            __TBB_ASSERT( my_bucket, "advancing an invalid iterator?");
            while( k <= my_map->my_mask ) {
                // Following test uses 2's-complement wizardry
                if( k&(k-2) ) // not the beginning of a segment
                    ++my_bucket;
                else my_bucket = my_map->get_bucket( k );
                my_node = static_cast<node*>( my_bucket->node_list );
                if( hash_map_base::is_valid(my_node) ) {
                    my_index = k; return;
                }
                ++k;
            }
            my_bucket = 0; my_node = 0; my_index = k; // the end
        }

References __TBB_ASSERT, and tbb::interface5::internal::hash_map_base::is_valid().

Referenced by tbb::interface5::internal::hash_map_iterator< Container, Value >::hash_map_iterator().

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operator *()

template<typename Container, typename Value>

Value& tbb::interface5::internal::hash_map_iterator< Container, Value >::operator * ( ) const

inline

Definition at line 368 of file concurrent_hash_map.h.

                                 {
            __TBB_ASSERT( hash_map_base::is_valid(my_node), "iterator uninitialized or at end of container?" );
            return my_node->item;
        }

References __TBB_ASSERT, and tbb::interface5::internal::hash_map_base::is_valid().

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operator++() [1/2]

template<typename Container , typename Value >

hash_map_iterator< Container, Value > & tbb::interface5::internal::hash_map_iterator< Container, Value >::operator++

(

)

Definition at line 395 of file concurrent_hash_map.h.

                                                                                       {
        my_node = static_cast<node*>( my_node->next );
        if( !my_node ) advance_to_next_bucket();
        return *this;
    }

operator++() [2/2]

template<typename Container, typename Value>

hash_map_iterator tbb::interface5::internal::hash_map_iterator< Container, Value >::operator++ ( int  )

inline

Post increment.

Definition at line 376 of file concurrent_hash_map.h.

                                          {
            hash_map_iterator old(*this);
            operator++();
            return old;
        }

operator->()

template<typename Container, typename Value>

Value* tbb::interface5::internal::hash_map_iterator< Container, Value >::operator-> ( ) const

inline

Definition at line 372 of file concurrent_hash_map.h.

{return &operator*();}

Friends And Related Function Documentation

hash_map_iterator

template<typename Container, typename Value>

template<typename C , typename U >

friend class hash_map_iterator

friend

Definition at line 318 of file concurrent_hash_map.h.

hash_map_range

template<typename Container, typename Value>

template<typename I >

friend class hash_map_range

friend

Definition at line 321 of file concurrent_hash_map.h.

interface5::concurrent_hash_map

template<typename Container, typename Value>

template<typename Key , typename T , typename HashCompare , typename A >

friend class interface5::concurrent_hash_map

friend

Definition at line 341 of file concurrent_hash_map.h.

operator!=

template<typename Container, typename Value>

template<typename C , typename T , typename U >

bool operator!= ( const hash_map_iterator< C, T > &  i, const hash_map_iterator< C, U > &  j  )

friend

operator-

template<typename Container, typename Value>

template<typename C , typename T , typename U >

ptrdiff_t operator- ( const hash_map_iterator< C, T > &  i, const hash_map_iterator< C, U > &  j  )

friend

operator==

template<typename Container, typename Value>

template<typename C , typename T , typename U >

bool operator== ( const hash_map_iterator< C, T > &  i, const hash_map_iterator< C, U > &  j  )

friend

Member Data Documentation

my_bucket

template<typename Container, typename Value>

const bucket* tbb::interface5::internal::hash_map_iterator< Container, Value >::my_bucket

private

Pointer to bucket.

Definition at line 352 of file concurrent_hash_map.h.

my_index

template<typename Container, typename Value>

size_t tbb::interface5::internal::hash_map_iterator< Container, Value >::my_index

private

Index in hash table for current item.

Definition at line 349 of file concurrent_hash_map.h.

my_map

template<typename Container, typename Value>

const Container* tbb::interface5::internal::hash_map_iterator< Container, Value >::my_map

private

concurrent_hash_map over which we are iterating.

Definition at line 346 of file concurrent_hash_map.h.

Referenced by tbb::interface5::internal::operator!=(), and tbb::interface5::internal::operator==().

my_node

template<typename Container, typename Value>

node* tbb::interface5::internal::hash_map_iterator< Container, Value >::my_node

private

Pointer to node that has current item.

Definition at line 355 of file concurrent_hash_map.h.

Referenced by tbb::interface5::internal::operator!=(), and tbb::interface5::internal::operator==().

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The documentation for this class was generated from the following file:

• concurrent_hash_map.h