Composite Layout Type.

Data Structures
struct	composite_schema_data
struct	layout_prefix
struct	m0_composite_layout

Functions
M0_INTERNAL void	m0_composite_build (struct m0_layout_domain *dom, uint64_t lid, struct m0_tl *sub_layouts, struct m0_composite_layout **out)
static int	composite_allocate (struct m0_layout_domain *dom, uint64_t lid, struct m0_layout **out)
static int	composite_register (struct m0_layout_domain *dom, const struct m0_layout_type *lt)
static void	composite_unregister (struct m0_layout_domain *dom, const struct m0_layout_type *lt)
static m0_bcount_t	composite_max_recsize (struct m0_layout_domain *dom)

Variables
static const struct m0_layout_type_ops	composite_type_ops
const struct m0_layout_type	m0_composite_layout_type
const struct m0_layout_type	m0_composite_layout_type

Detailed Description

Composite layout. Composite layout is made up of multiple sub-layouts. Each sub-layout needs to be read to obtain the overall layout details providing all the COB identifiers.

Function Documentation

composite_allocate()

static int composite_allocate ( struct m0_layout_domain *  dom, uint64_t  lid, struct m0_layout **  out  )

static

Definition at line 74 of file composite.c.

composite_max_recsize()

static m0_bcount_t composite_max_recsize ( struct m0_layout_domain *  dom )

static

Implementation of lto_max_recsize() for COMPOSITE layout type.

Definition at line 136 of file composite.c.

composite_register()

static int composite_register ( struct m0_layout_domain *  dom, const struct m0_layout_type *  lt  )

static

Implementation of lto_register for COMPOSITE layout type.

Initialises table specifically required for COMPOSITE layout type.

Definition at line 99 of file composite.c.

composite_unregister()

static void composite_unregister ( struct m0_layout_domain *  dom, const struct m0_layout_type *  lt  )

static

Implementation of lto_unregister for COMPOSITE layout type.

Finalises table specifically required for COMPOSITE layout type.

Definition at line 121 of file composite.c.

m0_composite_build()

M0_INTERNAL void m0_composite_build	(	struct m0_layout_domain *	dom,
		uint64_t	lid,
		struct m0_tl *	sub_layouts,
		struct m0_composite_layout **	out
	)

Definition at line 59 of file composite.c.

Variable Documentation

composite_type_ops

const struct m0_layout_type_ops composite_type_ops

static

Initial value:

= {
        .lto_register    = composite_register,
        .lto_unregister  = composite_unregister,
        .lto_max_recsize = composite_max_recsize,
        .lto_allocate    = composite_allocate
}

Definition at line 237 of file composite.c.

m0_composite_layout_type [1/2]

const struct m0_layout_type m0_composite_layout_type

Definition at line 245 of file composite.c.

m0_composite_layout_type [2/2]

const struct m0_layout_type m0_composite_layout_type

Initial value:

= {
        .lt_name = "composite",
        .lt_id   = 1,
        .lt_ops  = &composite_type_ops
}

Definition at line 245 of file composite.c.