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

Used to protect access to a single partition of a Partitioned. 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 >::OnePartition

Used to protect access to a single partition of a Partitioned.

For example, can be used to do a series of reads and/or modifications to a single entry without interference from other threads.

Public Member Functions
AssociativeContainer *	operator-> () const &
	Returns a pointer to the structure in this partition. More...
void	operator-> () &&=delete
AssociativeContainer &	operator* () const &
	Returns a reference to the structure in this partition. More...
void	operator* () &&=delete

Private Member Functions
	OnePartition (Partitioned &partitioned, PartitionId partitionId)
	Acquires locks for the ith partition. More...

Private Attributes
stdx::unique_lock< stdx::mutex >	_partitionLock
Partitioned *	_partitioned
PartitionId	_id

Friends
class	Partitioned

Constructor & Destructor Documentation

OnePartition()

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

mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::OnePartition::OnePartition ( Partitioned &  partitioned, PartitionId  partitionId  )

inlineprivate

Acquires locks for the ith partition.

partitionedAssociativeContainer must outlive this GuardedPartition. If a single thread needs access to multiple partitions, it must use GuardedAssociativeContainer, or acquire them in ascending order.

Member Function Documentation

operator*() [1/2]

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

AssociativeContainer& mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::OnePartition::operator* ( ) const &

inline

Returns a reference to the structure in this partition.

operator*() [2/2]

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

void mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::OnePartition::operator* ( ) &&

delete

operator->() [1/2]

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

AssociativeContainer* mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::OnePartition::operator-> ( ) const &

inline

Returns a pointer to the structure in this partition.

operator->() [2/2]

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

void mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::OnePartition::operator-> ( ) &&

delete

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

_id

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

PartitionId mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::OnePartition::_id

private

_partitioned

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

Partitioned* mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::OnePartition::_partitioned

private

_partitionLock

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

stdx::unique_lock<stdx::mutex> mongo::Partitioned< AssociativeContainer, nPartitions, KeyPartitioner >::OnePartition::_partitionLock

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