Conf_dir

Macros
#define	M0_TRACE_SUBSYSTEM   M0_TRACE_SUBSYS_CONF

Functions
	M0_TL_DESCR_DEFINE (m0_conf_dir, "m0_conf_dir::cd_items", M0_INTERNAL, struct m0_conf_obj, co_dir_link, co_gen_magic, M0_CONF_OBJ_MAGIC, M0_CONF_DIR_MAGIC)
	M0_TL_DEFINE (m0_conf_dir, M0_INTERNAL, struct m0_conf_obj)
M0_INTERNAL void	m0_conf_dir_add (struct m0_conf_dir *dir, struct m0_conf_obj *obj)
M0_INTERNAL void	m0_conf_dir_del (struct m0_conf_dir *dir, struct m0_conf_obj *obj)
M0_INTERNAL bool	m0_conf_dir_elems_match (const struct m0_conf_dir *dir, const struct m0_fid_arr *fids)
static void	conf_dir_id_build (struct m0_fid *out, const struct m0_fid *parent, const struct m0_conf_obj_type *children_type)
static int	conf_dir_new (struct m0_conf_cache *cache, const struct m0_fid *parent, const struct m0_fid *relfid, const struct m0_conf_obj_type *children_type, const struct m0_fid_arr *children_ids, struct m0_conf_dir **out)
M0_INTERNAL int	m0_conf_dir_new (struct m0_conf_obj *parent, const struct m0_fid *relfid, const struct m0_conf_obj_type *children_type, const struct m0_fid_arr *children_ids, struct m0_conf_dir **out)
	M0_TL_DESCR_DECLARE (m0_conf_dir, M0_EXTERN)
	M0_TL_DECLARE (m0_conf_dir, M0_INTERNAL, struct m0_conf_obj)
static uint32_t	m0_conf_dir_len (const struct m0_conf_dir *dir)

Detailed Description

Macro Definition Documentation

M0_TRACE_SUBSYSTEM

#define M0_TRACE_SUBSYSTEM   M0_TRACE_SUBSYS_CONF

Definition at line 28 of file dir.c.

Function Documentation

conf_dir_id_build()

static void conf_dir_id_build ( struct m0_fid *  out, const struct m0_fid *  parent, const struct m0_conf_obj_type *  children_type  )

static

Constructs directory identifier.

Todo:

This would produce non-unique identifier, if an object has two different directories with the same children types. Perhaps relation fid should be factored in somehow.

Definition at line 80 of file dir.c.

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conf_dir_new()

static int conf_dir_new ( struct m0_conf_cache *  cache, const struct m0_fid *  parent, const struct m0_fid *  relfid, const struct m0_conf_obj_type *  children_type, const struct m0_fid_arr *  children_ids, struct m0_conf_dir **  out  )

static

Definition at line 93 of file dir.c.

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m0_conf_dir_add()

M0_INTERNAL void m0_conf_dir_add	(	struct m0_conf_dir *	dir,
		struct m0_conf_obj *	obj
	)

Adds object to directory.

Precondition

obj->co_status == M0_CS_READY

m0_conf_obj_type(obj) == dir->cd_item_type

Definition at line 43 of file dir.c.

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m0_conf_dir_del()

M0_INTERNAL void m0_conf_dir_del	(	struct m0_conf_dir *	dir,
		struct m0_conf_obj *	obj
	)

Deletes object from directory.

Precondition

obj->co_status == M0_CS_READY

m0_conf_obj_type(obj) == dir->cd_item_type

Definition at line 53 of file dir.c.

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m0_conf_dir_elems_match()

M0_INTERNAL bool m0_conf_dir_elems_match	(	const struct m0_conf_dir *	dir,
		const struct m0_fid_arr *	fids
	)

Compares fids with directory entries.

Definition at line 63 of file dir.c.

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m0_conf_dir_len()

static uint32_t m0_conf_dir_len ( const struct m0_conf_dir *  dir )

inlinestatic

Definition at line 59 of file dir.h.

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m0_conf_dir_new()

M0_INTERNAL int m0_conf_dir_new	(	struct m0_conf_obj *	parent,
		const struct m0_fid *	relfid,
		const struct m0_conf_obj_type *	children_type,
		const struct m0_fid_arr *	children_ids,
		struct m0_conf_dir **	out
	)

Creates new m0_conf_dir, populates it with stub objects, and links to parent.

Parameters

	parent	Parent of this directory.
	children_type	Type of entries.
	children_ids	[optional] Identifiers of the entries.
[out]	out	Resulting pointer.

m0_conf_dir_new() is transactional: if it fails, the configuration cache (both DAG of objects and m0_conf_cache registry) is left unchanged.

XXX

Todo:

UT transactional property of m0_conf_dir_new().

Definition at line 159 of file dir.c.

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M0_TL_DECLARE()

M0_TL_DECLARE	(	m0_conf_dir	,
		M0_INTERNAL	,
		struct m0_conf_obj
	)

M0_TL_DEFINE()

M0_TL_DEFINE	(	m0_conf_dir	,
		M0_INTERNAL	,
		struct m0_conf_obj
	)

M0_TL_DESCR_DECLARE()

M0_TL_DESCR_DECLARE	(	m0_conf_dir	,
		M0_EXTERN
	)

M0_TL_DESCR_DEFINE()

M0_TL_DESCR_DEFINE	(	m0_conf_dir	,
		"m0_conf_dir::cd_items"	,
		M0_INTERNAL	,
		struct m0_conf_obj	,
		co_dir_link	,
		co_gen_magic	,
		M0_CONF_OBJ_MAGIC	,
		M0_CONF_DIR_MAGIC
	)