1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __PERF_INTLIST_H
 3#define __PERF_INTLIST_H
 4
 5#include <linux/rbtree.h>
 6#include <stdbool.h>
 7
 8#include "rblist.h"
 9
10struct int_node {
11	struct rb_node rb_node;
12	unsigned long i;
13	void *priv;
14};
15
16struct intlist {
17	struct rblist rblist;
18};
19
20struct intlist *intlist__new(const char *slist);
21void intlist__delete(struct intlist *ilist);
22
23void intlist__remove(struct intlist *ilist, struct int_node *in);
24int intlist__add(struct intlist *ilist, unsigned long i);
25
26struct int_node *intlist__entry(const struct intlist *ilist, unsigned int idx);
27struct int_node *intlist__find(struct intlist *ilist, unsigned long i);
28struct int_node *intlist__findnew(struct intlist *ilist, unsigned long i);
29
30static inline bool intlist__has_entry(struct intlist *ilist, unsigned long i)
31{
32	return intlist__find(ilist, i) != NULL;
33}
34
35static inline bool intlist__empty(const struct intlist *ilist)
36{
37	return rblist__empty(&ilist->rblist);
38}
39
40static inline unsigned int intlist__nr_entries(const struct intlist *ilist)
41{
42	return rblist__nr_entries(&ilist->rblist);
43}
44
45/* For intlist iteration */
46static inline struct int_node *intlist__first(struct intlist *ilist)
47{
48	struct rb_node *rn = rb_first_cached(&ilist->rblist.entries);
49	return rn ? rb_entry(rn, struct int_node, rb_node) : NULL;
50}
51static inline struct int_node *intlist__next(struct int_node *in)
52{
53	struct rb_node *rn;
54	if (!in)
55		return NULL;
56	rn = rb_next(&in->rb_node);
57	return rn ? rb_entry(rn, struct int_node, rb_node) : NULL;
58}
59
60/**
61 * intlist__for_each_entry      - iterate over a intlist
62 * @pos:	the &struct int_node to use as a loop cursor.
63 * @ilist:	the &struct intlist for loop.
64 */
65#define intlist__for_each_entry(pos, ilist)	\
66	for (pos = intlist__first(ilist); pos; pos = intlist__next(pos))
67
68/**
69 * intlist__for_each_entry_safe - iterate over a intlist safe against removal of
70 *                         int_node
71 * @pos:	the &struct int_node to use as a loop cursor.
72 * @n:		another &struct int_node to use as temporary storage.
73 * @ilist:	the &struct intlist for loop.
74 */
75#define intlist__for_each_entry_safe(pos, n, ilist)	\
76	for (pos = intlist__first(ilist), n = intlist__next(pos); pos;\
77	     pos = n, n = intlist__next(n))
78#endif /* __PERF_INTLIST_H */

 
 1#ifndef __PERF_INTLIST_H
 2#define __PERF_INTLIST_H
 3
 4#include <linux/rbtree.h>
 5#include <stdbool.h>
 6
 7#include "rblist.h"
 8
 9struct int_node {
10	struct rb_node rb_node;
11	int i;
12	void *priv;
13};
14
15struct intlist {
16	struct rblist rblist;
17};
18
19struct intlist *intlist__new(const char *slist);
20void intlist__delete(struct intlist *ilist);
21
22void intlist__remove(struct intlist *ilist, struct int_node *in);
23int intlist__add(struct intlist *ilist, int i);
24
25struct int_node *intlist__entry(const struct intlist *ilist, unsigned int idx);
26struct int_node *intlist__find(struct intlist *ilist, int i);
27struct int_node *intlist__findnew(struct intlist *ilist, int i);
28
29static inline bool intlist__has_entry(struct intlist *ilist, int i)
30{
31	return intlist__find(ilist, i) != NULL;
32}
33
34static inline bool intlist__empty(const struct intlist *ilist)
35{
36	return rblist__empty(&ilist->rblist);
37}
38
39static inline unsigned int intlist__nr_entries(const struct intlist *ilist)
40{
41	return rblist__nr_entries(&ilist->rblist);
42}
43
44/* For intlist iteration */
45static inline struct int_node *intlist__first(struct intlist *ilist)
46{
47	struct rb_node *rn = rb_first(&ilist->rblist.entries);
48	return rn ? rb_entry(rn, struct int_node, rb_node) : NULL;
49}
50static inline struct int_node *intlist__next(struct int_node *in)
51{
52	struct rb_node *rn;
53	if (!in)
54		return NULL;
55	rn = rb_next(&in->rb_node);
56	return rn ? rb_entry(rn, struct int_node, rb_node) : NULL;
57}
58
59/**
60 * intlist_for_each      - iterate over a intlist
61 * @pos:	the &struct int_node to use as a loop cursor.
62 * @ilist:	the &struct intlist for loop.
63 */
64#define intlist__for_each(pos, ilist)	\
65	for (pos = intlist__first(ilist); pos; pos = intlist__next(pos))
66
67/**
68 * intlist_for_each_safe - iterate over a intlist safe against removal of
69 *                         int_node
70 * @pos:	the &struct int_node to use as a loop cursor.
71 * @n:		another &struct int_node to use as temporary storage.
72 * @ilist:	the &struct intlist for loop.
73 */
74#define intlist__for_each_safe(pos, n, ilist)	\
75	for (pos = intlist__first(ilist), n = intlist__next(pos); pos;\
76	     pos = n, n = intlist__next(n))
77#endif /* __PERF_INTLIST_H */