ibrcommon::BloomFilter Class Reference

#include <BloomFilter.h>

Collaboration diagram for ibrcommon::BloomFilter:

Public Member Functions
	BloomFilter (std::size_t table_size=8192, std::size_t salt_count=2)
	BloomFilter (const BloomFilter &filter)
virtual	~BloomFilter ()
void	load (const cell_type *data, size_t len)
BloomFilter &	operator= (const BloomFilter &filter)
bool	operator! () const
void	clear ()
void	insert (const unsigned char *key_begin, const std::size_t length)
template<typename T >
void	insert (const T &t)
void	insert (const std::string &key)
void	insert (const char *data, const std::size_t &length)
template<typename InputIterator >
void	insert (const InputIterator begin, const InputIterator end)
virtual bool	contains (const unsigned char *key_begin, const std::size_t length) const
template<typename T >
bool	contains (const T &t) const
bool	contains (const std::string &key) const
bool	contains (const char *data, const std::size_t &length) const
template<typename InputIterator >
InputIterator	contains_all (const InputIterator begin, const InputIterator end) const
template<typename InputIterator >
InputIterator	contains_none (const InputIterator begin, const InputIterator end) const
virtual std::size_t	size () const
BloomFilter &	operator&= (const BloomFilter &filter)
BloomFilter &	operator|= (const BloomFilter &filter)
BloomFilter &	operator^= (const BloomFilter &filter)
const cell_type *	table () const
double	getAllocation () const

Protected Member Functions
virtual void	compute_indices (const bloom_type &hash, std::size_t &bit_index, std::size_t &bit) const

Protected Attributes
DefaultHashProvider	_hashp
unsigned char *	bit_table_
std::size_t	table_size_
unsigned int	_itemcount
std::size_t	salt_count_

Static Protected Attributes
static const std::size_t	bits_per_char = 0x08
static const unsigned char	bit_mask [bits_per_char]

Detailed Description

Definition at line 77 of file BloomFilter.h.

Constructor & Destructor Documentation

ibrcommon::BloomFilter::BloomFilter	(	std::size_t	table_size = 8192,
		std::size_t	salt_count = 2
	)

Definition at line 139 of file BloomFilter.cpp.

References bit_table_, bits_per_char, and table_size_.

ibrcommon::BloomFilter::BloomFilter

(

const BloomFilter &

filter)

Definition at line 151 of file BloomFilter.cpp.

References bit_table_, bits_per_char, and table_size_.

ibrcommon::BloomFilter::~BloomFilter ( )

virtual

Definition at line 158 of file BloomFilter.cpp.

References bit_table_.

Member Function Documentation

void ibrcommon::BloomFilter::clear

(

)

Definition at line 178 of file BloomFilter.cpp.

References _itemcount, bit_table_, bits_per_char, and table_size_.

Referenced by dtn::data::MemoryBundleSet::clear(), and dtn::storage::SQLiteBundleSet::clear().

void ibrcommon::BloomFilter::compute_indices ( const bloom_type &  hash, std::size_t &  bit_index, std::size_t &  bit  ) const

protectedvirtual

Definition at line 311 of file BloomFilter.cpp.

References bits_per_char, and table_size_.

Referenced by contains(), and insert().

bool ibrcommon::BloomFilter::contains ( const unsigned char *  key_begin, const std::size_t  length  ) const

virtual

Definition at line 210 of file BloomFilter.cpp.

References _hashp, bit_mask, bit_table_, bits_per_char, compute_indices(), and ibrcommon::DefaultHashProvider::hash().

Referenced by contains(), contains_all(), contains_none(), and dtn::data::BundleID::isIn().

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template<typename T >

bool ibrcommon::BloomFilter::contains ( const T &  t) const

inline

Definition at line 120 of file BloomFilter.h.

References contains().

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bool ibrcommon::BloomFilter::contains

(

const std::string &

key)

const

Definition at line 229 of file BloomFilter.cpp.

References contains().

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bool ibrcommon::BloomFilter::contains	(	const char *	data,
		const std::size_t &	length
	)		const

Definition at line 234 of file BloomFilter.cpp.

References contains().

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template<typename InputIterator >

InputIterator ibrcommon::BloomFilter::contains_all ( const InputIterator  begin, const InputIterator  end  ) const

inline

Definition at line 130 of file BloomFilter.h.

References contains().

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template<typename InputIterator >

InputIterator ibrcommon::BloomFilter::contains_none ( const InputIterator  begin, const InputIterator  end  ) const

inline

Definition at line 145 of file BloomFilter.h.

References contains().

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double ibrcommon::BloomFilter::getAllocation

(

)

const

Definition at line 317 of file BloomFilter.cpp.

References _itemcount, salt_count_, and table_size_.

void ibrcommon::BloomFilter::insert	(	const unsigned char *	key_begin,
		const std::size_t	length
	)

Definition at line 184 of file BloomFilter.cpp.

References _hashp, _itemcount, bit_mask, bit_table_, bits_per_char, compute_indices(), and ibrcommon::DefaultHashProvider::hash().

Referenced by dtn::data::BundleID::addTo(), and insert().

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template<typename T >

void ibrcommon::BloomFilter::insert ( const T &  t)

inline

Definition at line 98 of file BloomFilter.h.

References insert().

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void ibrcommon::BloomFilter::insert

(

const std::string &

key)

Definition at line 200 of file BloomFilter.cpp.

References insert().

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void ibrcommon::BloomFilter::insert	(	const char *	data,
		const std::size_t &	length
	)

Definition at line 205 of file BloomFilter.cpp.

References insert().

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template<typename InputIterator >

void ibrcommon::BloomFilter::insert ( const InputIterator  begin, const InputIterator  end  )

inline

Definition at line 108 of file BloomFilter.h.

References insert().

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void ibrcommon::BloomFilter::load	(	const cell_type *	data,
		size_t	len
	)

Definition at line 292 of file BloomFilter.cpp.

References _itemcount, bit_table_, and table_size_.

Referenced by dtn::storage::SQLiteBundleSet::deserialize(), and dtn::data::MemoryBundleSet::deserialize().

bool ibrcommon::BloomFilter::operator!

(

)

const

Definition at line 173 of file BloomFilter.cpp.

References table_size_.

BloomFilter & ibrcommon::BloomFilter::operator&=

(

const BloomFilter &

filter)

Definition at line 244 of file BloomFilter.cpp.

References _hashp, bit_table_, bits_per_char, and table_size_.

BloomFilter & ibrcommon::BloomFilter::operator=

(

const BloomFilter &

filter)

Definition at line 163 of file BloomFilter.cpp.

References _hashp, bit_table_, bits_per_char, and table_size_.

BloomFilter & ibrcommon::BloomFilter::operator^=

(

const BloomFilter &

filter)

Definition at line 276 of file BloomFilter.cpp.

References _hashp, bit_table_, bits_per_char, and table_size_.

BloomFilter & ibrcommon::BloomFilter::operator|=

(

const BloomFilter &

filter)

Definition at line 260 of file BloomFilter.cpp.

References _hashp, bit_table_, bits_per_char, and table_size_.

std::size_t ibrcommon::BloomFilter::size ( ) const

virtual

Definition at line 239 of file BloomFilter.cpp.

References bits_per_char, and table_size_.

Referenced by dtn::data::MemoryBundleSet::getLength(), dtn::storage::SQLiteBundleSet::getLength(), dtn::storage::SQLiteBundleSet::serialize(), and dtn::data::MemoryBundleSet::serialize().

const cell_type * ibrcommon::BloomFilter::table

(

)

const

Definition at line 306 of file BloomFilter.cpp.

References bit_table_.

Referenced by dtn::storage::SQLiteBundleSet::serialize(), and dtn::data::MemoryBundleSet::serialize().

Member Data Documentation

DefaultHashProvider ibrcommon::BloomFilter::_hashp

protected

Definition at line 171 of file BloomFilter.h.

Referenced by contains(), insert(), operator&=(), operator=(), operator^=(), and operator|=().

unsigned int ibrcommon::BloomFilter::_itemcount

protected

Definition at line 176 of file BloomFilter.h.

Referenced by clear(), getAllocation(), insert(), and load().

const unsigned char ibrcommon::BloomFilter::bit_mask

staticprotected

Initial value:

= {
                                                                                                                   0x01,  
                                                                                                                   0x02,  
                                                                                                                   0x04,  
                                                                                                                   0x08,  
                                                                                                                   0x10,  
                                                                                                                   0x20,  
                                                                                                                   0x40,  
                                                                                                                   0x80   
                                                                                                                 }

Definition at line 81 of file BloomFilter.h.

Referenced by contains(), and insert().

unsigned char* ibrcommon::BloomFilter::bit_table_

protected

Definition at line 173 of file BloomFilter.h.

Referenced by BloomFilter(), clear(), contains(), insert(), load(), operator&=(), operator=(), operator^=(), operator|=(), table(), and ~BloomFilter().

const std::size_t ibrcommon::BloomFilter::bits_per_char = 0x08

staticprotected

Definition at line 80 of file BloomFilter.h.

Referenced by BloomFilter(), clear(), compute_indices(), contains(), insert(), operator&=(), operator=(), operator^=(), operator|=(), and size().

std::size_t ibrcommon::BloomFilter::salt_count_

protected

Definition at line 177 of file BloomFilter.h.

Referenced by getAllocation().

std::size_t ibrcommon::BloomFilter::table_size_

protected

Definition at line 174 of file BloomFilter.h.

Referenced by BloomFilter(), clear(), compute_indices(), getAllocation(), load(), operator!(), operator&=(), operator=(), operator^=(), operator|=(), and size().

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

• ibrcommon/ibrcommon/data/BloomFilter.h
• ibrcommon/ibrcommon/data/BloomFilter.cpp