extlink_t Class Reference

List of all members.

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Detailed Description

Persistent structure (on an extent map page) representing an extent.

Contains a bitmap indicating which of its pages are allocated, next and previous pointers to link this extent into a store, and an owner (store number, zero means not owned). Also contains unlogged space-utilization information (bucket map) used by the file manager.

Definition at line 73 of file extent.h.

Public Member Functions
NORET	extlink_t (const extlink_t &e)
extlink_t &	operator= (const extlink_t &)
void	clrall ()
void	setall ()
void	setmap (const Pmap &m)
void	getmap (Pmap &m) const
void	set (int i)
void	clr (int i)
bool	is_set (int i) const
bool	is_clr (int i) const
int	first_set (int start) const
int	first_clr (int start) const
int	last_set (int start) const
int	last_clr (int start) const
int	num_set () const
int	num_clr () const
Public Attributes
extnum_t	next
	Linked list next.
extnum_t	prev
	Linked list previous.
snum_t	owner
	Store number of containging store.
uint4_t	pbucketmap
	Not logged; space utilization by histograms.

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

• src/sm/extent.h

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