TAO_Notify::Bit_Vector Class Reference

Simple bit vector. More...

#include <Bit_Vector.h>

Collaboration diagram for TAO_Notify::Bit_Vector:

[legend]List of all members.


Public Member Functions
	Bit_Vector ()
	The constructor.
	~Bit_Vector ()
	The destructor.
bool	is_set (const size_t location) const
	Determine if a bit at location is set.
void	set_bit (const size_t location, bool set)
	Set or unset a bit at location, growing the vector as needed.
size_t	find_first_bit (bool set) const
	Find the first bit that is either set or unset in an O(1).
Private Types
typedef ACE_UINT32	BASIC_UINT_TYPE
typedef ACE_Vector< BASIC_UINT_TYPE >	VECTOR_TYPE
enum	{ BITS_PER_WORD = 32, BPW_LOG_2 = 5 }
Private Member Functions
void	evaluate_firsts (const size_t location, bool set)
	Update our first set and unset bits.
size_t	find_first_bit_of (const size_t location, bool set)
Private Attributes
VECTOR_TYPE	bitvec_
size_t	size_
size_t	first_set_bit_
size_t	first_cleared_bit_

Detailed Description

Simple bit vector.

Written to support block allocation from persistent storage. Should be promoted to the ACE level to make it generally usable.

Member Typedef Documentation

typedef ACE_UINT32 TAO_Notify::Bit_Vector::BASIC_UINT_TYPE [private]

typedef ACE_Vector<BASIC_UINT_TYPE> TAO_Notify::Bit_Vector::VECTOR_TYPE [private]

Member Enumeration Documentation

anonymous enum [private]

Enumeration values:

BITS_PER_WORD

BPW_LOG_2

Constructor & Destructor Documentation

TAO_Notify::Bit_Vector::Bit_Vector ( )

The constructor.

TAO_Notify::Bit_Vector::~Bit_Vector ( )

The destructor.

Member Function Documentation

void TAO_Notify::Bit_Vector::evaluate_firsts ( const size_t location,

bool set

) [private]

Update our first set and unset bits.

size_t TAO_Notify::Bit_Vector::find_first_bit ( bool set ) const

Find the first bit that is either set or unset in an O(1).

size_t TAO_Notify::Bit_Vector::find_first_bit_of ( const size_t location,

bool set

) [private]

Iterate from location to the end, finding the first bit that matches the requested set or unset value.