Extent

Data Structures
struct	m0_ext

Macros
#define	M0_EXT(start, end)   ((struct m0_ext){ .e_start = (start), .e_end = (end) })
#define	EXT_F   "[%" PRIx64 ", %" PRIx64 ")"
#define	EXT_P(x)   (x)->e_start, (x)->e_end

Enumerations
enum	m0_ext_format_version { M0_EXT_FORMAT_VERSION_1 = 1, M0_EXT_FORMAT_VERSION = M0_EXT_FORMAT_VERSION_1 }

Functions
M0_INTERNAL void	m0_ext_init (struct m0_ext *ext)
M0_INTERNAL m0_bcount_t	m0_ext_length (const struct m0_ext *ext)
M0_INTERNAL bool	m0_ext_is_in (const struct m0_ext *ext, m0_bindex_t index)
M0_INTERNAL bool	m0_ext_are_overlapping (const struct m0_ext *e0, const struct m0_ext *e1)
M0_INTERNAL bool	m0_ext_is_partof (const struct m0_ext *super, const struct m0_ext *sub)
M0_INTERNAL bool	m0_ext_equal (const struct m0_ext *a, const struct m0_ext *b)
M0_INTERNAL bool	m0_ext_is_empty (const struct m0_ext *ext)
M0_INTERNAL void	m0_ext_intersection (const struct m0_ext *e0, const struct m0_ext *e1, struct m0_ext *result)
M0_INTERNAL bool	m0_ext_is_valid (const struct m0_ext *ext)
struct m0_ext	M0_XCA_DOMAIN (be|rpc)
M0_INTERNAL void	m0_ext_sub (const struct m0_ext *minuend, const struct m0_ext *subtrahend, struct m0_ext *difference)
M0_INTERNAL void	m0_ext_add (const struct m0_ext *term0, const struct m0_ext *term1, struct m0_ext *sum)
M0_INTERNAL m0_bindex_t	m0_ext_cap (const struct m0_ext *ext2, m0_bindex_t val)

Variables
enum m0_ext_format_version	M0_XCA_DOMAIN

Detailed Description

Macro Definition Documentation

EXT_F

#define EXT_F   "[%" PRIx64 ", %" PRIx64 ")"

Definition at line 85 of file ext.h.

EXT_P

#define EXT_P

(

x

)

(x)->e_start, (x)->e_end

Definition at line 86 of file ext.h.

M0_EXT

#define M0_EXT	(		start,
			end
	)		((struct m0_ext){ .e_start = (start), .e_end = (end) })

Definition at line 55 of file ext.h.

Enumeration Type Documentation

m0_ext_format_version

enum m0_ext_format_version

Enumerator
M0_EXT_FORMAT_VERSION_1
M0_EXT_FORMAT_VERSION	Current version, should point to the latest version present

Definition at line 44 of file ext.h.

Function Documentation

m0_ext_add()

M0_INTERNAL void m0_ext_add	(	const struct m0_ext *	term0,
		const struct m0_ext *	term1,
		struct m0_ext *	sum
	)

m0_ext_are_overlapping()

M0_INTERNAL bool m0_ext_are_overlapping	(	const struct m0_ext *	e0,
		const struct m0_ext *	e1
	)

Definition at line 53 of file ext.c.

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m0_ext_cap()

M0_INTERNAL m0_bindex_t m0_ext_cap	(	const struct m0_ext *	ext2,
		m0_bindex_t	val
	)

m0_ext_equal()

M0_INTERNAL bool m0_ext_equal	(	const struct m0_ext *	a,
		const struct m0_ext *	b
	)

Definition at line 70 of file ext.c.

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m0_ext_init()

M0_INTERNAL void m0_ext_init

(

struct m0_ext *

ext

)

Definition at line 32 of file ext.c.

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m0_ext_intersection()

M0_INTERNAL void m0_ext_intersection	(	const struct m0_ext *	e0,
		const struct m0_ext *	e1,
		struct m0_ext *	result
	)

Definition at line 81 of file ext.c.

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m0_ext_is_empty()

M0_INTERNAL bool m0_ext_is_empty

(

const struct m0_ext *

ext

)

Definition at line 76 of file ext.c.

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m0_ext_is_in()

M0_INTERNAL bool m0_ext_is_in	(	const struct m0_ext *	ext,
		m0_bindex_t	index
	)

Definition at line 48 of file ext.c.

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m0_ext_is_partof()

M0_INTERNAL bool m0_ext_is_partof	(	const struct m0_ext *	super,
		const struct m0_ext *	sub
	)

Definition at line 62 of file ext.c.

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m0_ext_is_valid()

M0_INTERNAL bool m0_ext_is_valid

(

const struct m0_ext *

ext

)

Tells if start of extent is less than end of extent.

Definition at line 90 of file ext.c.

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m0_ext_length()

M0_INTERNAL m0_bcount_t m0_ext_length

(

const struct m0_ext *

ext

)

Definition at line 42 of file ext.c.

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m0_ext_sub()

M0_INTERNAL void m0_ext_sub	(	const struct m0_ext *	minuend,
		const struct m0_ext *	subtrahend,
		struct m0_ext *	difference
	)

M0_XCA_DOMAIN()

struct m0_ext M0_XCA_DOMAIN

(

be|

rpc

)

Variable Documentation

M0_XCA_DOMAIN

enum m0_ext_format_version M0_XCA_DOMAIN