layout.h File Reference

#include "client.h"
#include "client_internal.h"
#include "lib/types.h"

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Data Structures
struct	m0_capture_layout
struct	m0_client_pdclust_layout
struct	m0_composite_extent
struct	m0_composite_layer
struct	m0_client_composite_layout
struct	m0_op_layout_ops
struct	m0_op_layout
struct	m0_op_composite_io

Macros
#define	__MOTR_LAYOUT_H__
#define	M0_OBJ_LAYOUT_ID(lid)   (lid & 0x0000ffffffffffff)
#define	M0_OBJ_LAYOUT_TYPE(lid)   ((lid & 0xffff000000000000) >> 48UL)
#define	M0_OBJ_LAYOUT_MAKE_LID(lid, type)   ((uint64_t)lid | ((uint64_t)type << 48UL))

Functions
M0_INTERNAL int	m0_layout_op_launch (struct m0_op_layout *ol)
M0_INTERNAL int	m0_client__layout_get (struct m0_client_layout *layout)
M0_INTERNAL void	m0_client__layout_put (struct m0_client_layout *layout)
M0_INTERNAL int	m0__composite_container_init (struct m0_client *cinst)
M0_INTERNAL int	m0__obj_layout_send (struct m0_obj *obj, struct m0_op_layout *ol)
M0_INTERNAL int	m0__dix_layout_get_sync (struct m0_obj *obj, struct m0_dix_layout *dlayout)
M0_INTERNAL struct m0_dix_cli *	ent_dixc (const struct m0_entity *ent)
M0_INTERNAL struct m0_dix_cli *	ol_dixc (const struct m0_op_layout *ol)

Variables
const struct m0_op_layout_ops	m0_op_layout_composite_ops
const struct m0_client_layout_ops	layout_composite_ops
struct m0_fid	composite_extent_rd_idx_fid
struct m0_fid	composite_extent_wr_idx_fid
const struct m0_bob_type	ol_bobtype

Macro Definition Documentation

__MOTR_LAYOUT_H__

#define __MOTR_LAYOUT_H__

Definition at line 26 of file layout.h.

M0_OBJ_LAYOUT_ID

#define M0_OBJ_LAYOUT_ID

(

lid

)

(lid & 0x0000ffffffffffff)

Client makes use of layout id attribute and stores the layout type in the highest 16 bits of layout id.

Definition at line 107 of file layout.h.

M0_OBJ_LAYOUT_MAKE_LID

#define M0_OBJ_LAYOUT_MAKE_LID	(		lid,
			type
	)		((uint64_t)lid | ((uint64_t)type << 48UL))

Definition at line 109 of file layout.h.

M0_OBJ_LAYOUT_TYPE

#define M0_OBJ_LAYOUT_TYPE

(

lid

)

((lid & 0xffff000000000000) >> 48UL)

Definition at line 108 of file layout.h.

Function Documentation

m0__composite_container_init()

M0_INTERNAL int m0__composite_container_init

(

struct m0_client *

cinst

)

Definition at line 1330 of file composite_layout.c.

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m0__dix_layout_get_sync()

M0_INTERNAL int m0__dix_layout_get_sync	(	struct m0_obj *	obj,
		struct m0_dix_layout *	dlayout
	)

Definition at line 328 of file composite_layout.c.

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m0__obj_layout_send()

M0_INTERNAL int m0__obj_layout_send	(	struct m0_obj *	obj,
		struct m0_op_layout *	ol
	)

Definition at line 2043 of file cob.c.

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m0_client__layout_get()

M0_INTERNAL int m0_client__layout_get

(

struct m0_client_layout *

layout

)

-------------------------------------------------------------------------—*

Client LAYOUT APIS *

Definition at line 276 of file layout.c.

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m0_client__layout_put()

M0_INTERNAL void m0_client__layout_put

(

struct m0_client_layout *

layout

)

Definition at line 288 of file layout.c.

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m0_layout_op_launch()

M0_INTERNAL int m0_layout_op_launch

(

struct m0_op_layout *

ol

)

Definition at line 297 of file composite_layout.c.

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Variable Documentation

composite_extent_rd_idx_fid

struct m0_fid composite_extent_rd_idx_fid

---------------------------------------------------------------------——*

Client Composite Layout Extent Index API and routines *

2 global extent indices are created for composite objects' extents: one is for read extents and another is for write extents. Client uses two reserved FIDs for these 2 global extent indices. The format for key/value pairs is defined as: key = {layer_id, extent offset} and value = extent length To ensure that the key/value pairs are stored in key's lexicographical, order (so that extents for a layer is stored in increasing offset order), client transforms the keys input by the application in big-endian format.

To create these internal extent indices, client also has to maintain an container for it.

Definition at line 1225 of file composite_layout.c.

composite_extent_wr_idx_fid

struct m0_fid composite_extent_wr_idx_fid

Definition at line 1226 of file composite_layout.c.

layout_composite_ops

const struct m0_client_layout_ops layout_composite_ops

Definition at line 528 of file composite_layout.c.

m0_op_layout_composite_ops

const struct m0_op_layout_ops m0_op_layout_composite_ops

Definition at line 447 of file composite_layout.c.

ol_bobtype

const struct m0_bob_type ol_bobtype

Definition at line 37 of file layout.c.