Conf_walk

Data Structures
struct	conf_walker

Macros
#define	M0_TRACE_SUBSYSTEM   M0_TRACE_SUBSYS_CONF

Enumerations
enum	{ M0_CW_STOP, M0_CW_CONTINUE, M0_CW_SKIP_SUBTREE, M0_CW_SKIP_SIBLINGS }

Functions
static int	conf_walker_down (struct conf_walker *w, void *args)
static int	conf_walker_up (struct conf_walker *w)
static struct m0_conf_obj *	conf_downlink_first (const struct m0_conf_obj *obj)
static struct m0_conf_obj *	conf_downlink_next (const struct m0_conf_obj *parent, const struct m0_conf_obj *child)
M0_INTERNAL int	m0_conf_walk (int(*fn)(struct m0_conf_obj *obj, void *args), struct m0_conf_obj *origin, void *args)
static void	conf_walker_turn (struct conf_walker *w)

Detailed Description

Macro Definition Documentation

M0_TRACE_SUBSYSTEM

#define M0_TRACE_SUBSYSTEM   M0_TRACE_SUBSYS_CONF

Definition at line 28 of file walk.c.

Enumeration Type Documentation

anonymous enum

anonymous enum

fn() parameter of m0_conf_walk() should return one of these values. In case of error, negative error code (-Exxx) should be returned.

Enumerator
M0_CW_STOP	Return immediately.
M0_CW_CONTINUE	Continue normally.
M0_CW_SKIP_SUBTREE	Skip the subtree that begins at the current entry. Continue processing with the next sibling.
M0_CW_SKIP_SIBLINGS	Skip siblings of the current entry. Continue processing in the parent.

Definition at line 37 of file walk.h.

Function Documentation

conf_downlink_first()

static struct m0_conf_obj * conf_downlink_first ( const struct m0_conf_obj *  obj )

static

Definition at line 127 of file walk.c.

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conf_downlink_next()

static struct m0_conf_obj * conf_downlink_next ( const struct m0_conf_obj *  parent, const struct m0_conf_obj *  child  )

static

Definition at line 144 of file walk.c.

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conf_walker_down()

static int conf_walker_down ( struct conf_walker *  w, void *  args  )

static

Definition at line 76 of file walk.c.

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conf_walker_turn()

static void conf_walker_turn ( struct conf_walker *  w )

static

Definition at line 71 of file walk.c.

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conf_walker_up()

static int conf_walker_up ( struct conf_walker *  w )

static

Definition at line 108 of file walk.c.

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m0_conf_walk()

M0_INTERNAL int m0_conf_walk	(	int(*)(struct m0_conf_obj *obj, void *args)	fn,
		struct m0_conf_obj *	origin,
		void *	args
	)

Performs depth-first traversal of the tree of conf objects, starting from ‘origin’, and calls fn() once for each conf object in the tree.

fn() should return one of M0_CW_* values (see enum above), or -Exxx in case of error.

Precondition

m0_conf_cache_is_locked(origin->co_cache)

Definition at line 49 of file walk.c.

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