mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All Class Reference

Used to protect access to all partitions of this partitioned associative structure. More...

#include <partitioned.h>

Detailed Description

template<typename AssociativeContainer, std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>
class mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All

Used to protect access to all partitions of this partitioned associative structure.

For example, may be used to empty each partition in the structure, or to provide a snapshotted count of the number of entries across all partitions.

Public Member Functions
auto	begin () &
	Returns an iterator at the start of the partitions. More...
auto	end () &
	Returns an iterator at the end of the partitions. More...
auto	begin () const &
	Returns an iterator at the start of the partitions. More...
void	begin () &&=delete
auto	end () const &
	Returns an iterator at the end of the partitions. More...
void	end () &&=delete
std::size_t	size () const
	Returns the number of elements in all partitions, summed together. More...
bool	empty () const
	Returns true if each partition is empty. More...
std::size_t	count (const key_type &key) const
	Returns the number of entries with the given key. More...
void	clear ()
	Empties each container within each partition. More...
void	insert (value_type value) &
	Inserts value into its designated partition. More...
void	insert (value_type) &&=delete
std::size_t	erase (const key_type &key) &
	Erases one entry from the partitioned structure, returns the number of entries removed. More...
void	erase (const key_type &) &&=delete

Private Member Functions
	All (Partitioned &partitionedContainer)
	Acquires locks for all partitions. More...

Private Attributes
std::vector< stdx::unique_lock< stdx::mutex > >	_lockGuards
Partitioned *	_partitionedContainer

Friends
class	Partitioned

Constructor & Destructor Documentation

All()

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::All ( Partitioned &  partitionedContainer )

inlineexplicitprivate

Acquires locks for all partitions.

The lifetime of this All object must be shorter than that of partitionedContainer.

Member Function Documentation

begin() [1/3]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

auto mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::begin ( ) &

inline

Returns an iterator at the start of the partitions.

begin() [2/3]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

auto mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::begin ( ) const &

inline

Returns an iterator at the start of the partitions.

begin() [3/3]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

void mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::begin ( ) &&

delete

clear()

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

void mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::clear ( )

inline

Empties each container within each partition.

count()

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

std::size_t mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::count ( const key_type &  key ) const

inline

Returns the number of entries with the given key.

empty()

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

bool mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::empty ( ) const

inline

Returns true if each partition is empty.

end() [1/3]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

auto mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::end ( ) &

inline

Returns an iterator at the end of the partitions.

end() [2/3]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

auto mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::end ( ) const &

inline

Returns an iterator at the end of the partitions.

end() [3/3]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

void mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::end ( ) &&

delete

erase() [1/2]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

std::size_t mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::erase ( const key_type &  key ) &

inline

Erases one entry from the partitioned structure, returns the number of entries removed.

erase() [2/2]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

void mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::erase ( const key_type &  ) &&

delete

insert() [1/2]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

void mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::insert ( value_type  value ) &

inline

Inserts value into its designated partition.

insert() [2/2]

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

void mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::insert ( value_type  ) &&

delete

size()

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

std::size_t mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::size ( ) const

inline

Returns the number of elements in all partitions, summed together.

Friends And Related Function Documentation

Partitioned

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

friend class Partitioned

friend

Member Data Documentation

_lockGuards

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

std::vector<stdx::unique_lock<stdx::mutex> > mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::_lockGuards

private

_partitionedContainer

template<typename AssociativeContainer , std::size_t nPartitions = 16, typename KeyPartitioner = Partitioner<typename AssociativeContainer::key_type>>

Partitioned* mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::All::_partitionedContainer

private

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

• /home/louis/git/mongodbsource.github.io/src/src/mongo/db/catalog/util/partitioned.h