dcursor.c File Reference

Functions to iterate over a sets and subsets of items in dlists. More...

#include <string.h>
#include <stdint.h>
#include <freeradius-devel/util/dcursor.h>
#include <freeradius-devel/util/pair.h>

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Functions
void *	fr_dcursor_intersect_head (fr_dcursor_t *a, fr_dcursor_t *b)
	Return the first item matching the iterator in cursor a and cursor b.
void *	fr_dcursor_intersect_next (fr_dcursor_t *a, fr_dcursor_t *b)
	Return the next item matching the iterator in cursor a and cursor b.

Detailed Description

Functions to iterate over a sets and subsets of items in dlists.

Note

Do not modify collections of items pointed to by a cursor with non fr_dcursor_* functions over the lifetime of that cursor.

Author

Arran Cudbard-Bell (a.cud.nosp@m.bard.nosp@m.b@fre.nosp@m.erad.nosp@m.ius.o.nosp@m.rg)

Copyright

2013-2016 Arran Cudbard-Bell (a.cud.nosp@m.bard.nosp@m.b@fre.nosp@m.erad.nosp@m.ius.o.nosp@m.rg)

2013-2016 The FreeRADIUS Server Project.

Definition in file dcursor.c.

Function Documentation

fr_dcursor_intersect_head()

void * fr_dcursor_intersect_head	(	fr_dcursor_t *	a,
		fr_dcursor_t *	b
	)

Return the first item matching the iterator in cursor a and cursor b.

If a and b are not currently set to the same item, b will be reset, and wound to the item before a's current item.

Note

Both cursors must operate on the same list of items.

Parameters

[in]	a	First cursor.
[in]	b	Second cursor.

Returns

item at the start of the list.

Definition at line 47 of file dcursor.c.

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fr_dcursor_intersect_next()

void * fr_dcursor_intersect_next	(	fr_dcursor_t *	a,
		fr_dcursor_t *	b
	)

Return the next item matching the iterator in cursor a and cursor b.

If a and b are not currently set to the same item, b will be reset, and wound to the item before a's current item.

The purpose of this function is to return items that match both iterators.

Note

Both cursors must operate on the same list of items.

Parameters

[in]	a	First cursor.
[in]	b	Second cursor.

Returns

next item in the list.

Definition at line 76 of file dcursor.c.

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