1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __PERF_STRLIST_H
 3#define __PERF_STRLIST_H
 4
 5#include <linux/rbtree.h>
 6#include <stdbool.h>
 7
 8#include "rblist.h"
 9
10struct str_node {
11	struct rb_node rb_node;
12	const char     *s;
13};
14
15struct strlist {
16	struct rblist rblist;
17	bool	      dupstr;
18	bool	      file_only;
19};
20
21/*
22 * @file_only: When dirname is present, only consider entries as filenames,
23 *             that should not be added to the list if dirname/entry is not
24 *             found
25 */
26struct strlist_config {
27	bool dont_dupstr;
28	bool file_only;
29	const char *dirname;
30};
31
32struct strlist *strlist__new(const char *slist, const struct strlist_config *config);
33void strlist__delete(struct strlist *slist);
34
35void strlist__remove(struct strlist *slist, struct str_node *sn);
36int strlist__load(struct strlist *slist, const char *filename);
37int strlist__add(struct strlist *slist, const char *str);
38
39struct str_node *strlist__entry(const struct strlist *slist, unsigned int idx);
40struct str_node *strlist__find(struct strlist *slist, const char *entry);
41
42static inline bool strlist__has_entry(struct strlist *slist, const char *entry)
43{
44	return strlist__find(slist, entry) != NULL;
45}
46
47static inline bool strlist__empty(const struct strlist *slist)
48{
49	return rblist__empty(&slist->rblist);
50}
51
52static inline unsigned int strlist__nr_entries(const struct strlist *slist)
53{
54	return rblist__nr_entries(&slist->rblist);
55}
56
57/* For strlist iteration */
58static inline struct str_node *strlist__first(struct strlist *slist)
59{
60	struct rb_node *rn = rb_first_cached(&slist->rblist.entries);
61	return rn ? rb_entry(rn, struct str_node, rb_node) : NULL;
62}
63static inline struct str_node *strlist__next(struct str_node *sn)
64{
65	struct rb_node *rn;
66	if (!sn)
67		return NULL;
68	rn = rb_next(&sn->rb_node);
69	return rn ? rb_entry(rn, struct str_node, rb_node) : NULL;
70}
71
72/**
73 * strlist_for_each      - iterate over a strlist
74 * @pos:	the &struct str_node to use as a loop cursor.
75 * @slist:	the &struct strlist for loop.
76 */
77#define strlist__for_each_entry(pos, slist)	\
78	for (pos = strlist__first(slist); pos; pos = strlist__next(pos))
79
80/**
81 * strlist_for_each_safe - iterate over a strlist safe against removal of
82 *                         str_node
83 * @pos:	the &struct str_node to use as a loop cursor.
84 * @n:		another &struct str_node to use as temporary storage.
85 * @slist:	the &struct strlist for loop.
86 */
87#define strlist__for_each_entry_safe(pos, n, slist)	\
88	for (pos = strlist__first(slist), n = strlist__next(pos); pos;\
89	     pos = n, n = strlist__next(n))
90#endif /* __PERF_STRLIST_H */

 
 1#ifndef __PERF_STRLIST_H
 2#define __PERF_STRLIST_H
 3
 4#include <linux/rbtree.h>
 5#include <stdbool.h>
 6
 7#include "rblist.h"
 8
 9struct str_node {
10	struct rb_node rb_node;
11	const char     *s;
12};
13
14struct strlist {
15	struct rblist rblist;
16	bool	      dupstr;
17	bool	      file_only;
18};
19
20/*
21 * @file_only: When dirname is present, only consider entries as filenames,
22 *             that should not be added to the list if dirname/entry is not
23 *             found
24 */
25struct strlist_config {
26	bool dont_dupstr;
27	bool file_only;
28	const char *dirname;
29};
30
31struct strlist *strlist__new(const char *slist, const struct strlist_config *config);
32void strlist__delete(struct strlist *slist);
33
34void strlist__remove(struct strlist *slist, struct str_node *sn);
35int strlist__load(struct strlist *slist, const char *filename);
36int strlist__add(struct strlist *slist, const char *str);
37
38struct str_node *strlist__entry(const struct strlist *slist, unsigned int idx);
39struct str_node *strlist__find(struct strlist *slist, const char *entry);
40
41static inline bool strlist__has_entry(struct strlist *slist, const char *entry)
42{
43	return strlist__find(slist, entry) != NULL;
44}
45
46static inline bool strlist__empty(const struct strlist *slist)
47{
48	return rblist__empty(&slist->rblist);
49}
50
51static inline unsigned int strlist__nr_entries(const struct strlist *slist)
52{
53	return rblist__nr_entries(&slist->rblist);
54}
55
56/* For strlist iteration */
57static inline struct str_node *strlist__first(struct strlist *slist)
58{
59	struct rb_node *rn = rb_first(&slist->rblist.entries);
60	return rn ? rb_entry(rn, struct str_node, rb_node) : NULL;
61}
62static inline struct str_node *strlist__next(struct str_node *sn)
63{
64	struct rb_node *rn;
65	if (!sn)
66		return NULL;
67	rn = rb_next(&sn->rb_node);
68	return rn ? rb_entry(rn, struct str_node, rb_node) : NULL;
69}
70
71/**
72 * strlist_for_each      - iterate over a strlist
73 * @pos:	the &struct str_node to use as a loop cursor.
74 * @slist:	the &struct strlist for loop.
75 */
76#define strlist__for_each(pos, slist)	\
77	for (pos = strlist__first(slist); pos; pos = strlist__next(pos))
78
79/**
80 * strlist_for_each_safe - iterate over a strlist safe against removal of
81 *                         str_node
82 * @pos:	the &struct str_node to use as a loop cursor.
83 * @n:		another &struct str_node to use as temporary storage.
84 * @slist:	the &struct strlist for loop.
85 */
86#define strlist__for_each_safe(pos, n, slist)	\
87	for (pos = strlist__first(slist), n = strlist__next(pos); pos;\
88	     pos = n, n = strlist__next(n))
89#endif /* __PERF_STRLIST_H */