1#ifndef __PERF_STRFILTER_H
 2#define __PERF_STRFILTER_H
 3/* General purpose glob matching filter */
 4
 5#include <linux/list.h>
 6#include <stdbool.h>
 7
 8/* A node of string filter */
 9struct strfilter_node {
10	struct strfilter_node *l;	/* Tree left branche (for &,|) */
11	struct strfilter_node *r;	/* Tree right branche (for !,&,|) */
12	const char *p;		/* Operator or rule */
13};
14
15/* String filter */
16struct strfilter {
17	struct strfilter_node *root;
18};
19
20/**
21 * strfilter__new - Create a new string filter
22 * @rules: Filter rule, which is a combination of glob expressions.
23 * @err: Pointer which points an error detected on @rules
24 *
25 * Parse @rules and return new strfilter. Return NULL if an error detected.
26 * In that case, *@err will indicate where it is detected, and *@err is NULL
27 * if a memory allocation is failed.
28 */
29struct strfilter *strfilter__new(const char *rules, const char **err);
30
31/**
32 * strfilter__or - Append an additional rule by logical-or
33 * @filter: Original string filter
34 * @rules: Filter rule to be appended at left of the root of
35 *         @filter by using logical-or.
36 * @err: Pointer which points an error detected on @rules
37 *
38 * Parse @rules and join it to the @filter by using logical-or.
39 * Return 0 if success, or return the error code.
40 */
41int strfilter__or(struct strfilter *filter,
42		  const char *rules, const char **err);
43
44/**
45 * strfilter__add - Append an additional rule by logical-and
46 * @filter: Original string filter
47 * @rules: Filter rule to be appended at left of the root of
48 *         @filter by using logical-and.
49 * @err: Pointer which points an error detected on @rules
50 *
51 * Parse @rules and join it to the @filter by using logical-and.
52 * Return 0 if success, or return the error code.
53 */
54int strfilter__and(struct strfilter *filter,
55		   const char *rules, const char **err);
56
57/**
58 * strfilter__compare - compare given string and a string filter
59 * @filter: String filter
60 * @str: target string
61 *
62 * Compare @str and @filter. Return true if the str match the rule
63 */
64bool strfilter__compare(struct strfilter *filter, const char *str);
65
66/**
67 * strfilter__delete - delete a string filter
68 * @filter: String filter to delete
69 *
70 * Delete @filter.
71 */
72void strfilter__delete(struct strfilter *filter);
73
74/**
75 * strfilter__string - Reconstruct a rule string from filter
76 * @filter: String filter to reconstruct
77 *
78 * Reconstruct a rule string from @filter. This will be good for
79 * debug messages. Note that returning string must be freed afterward.
80 */
81char *strfilter__string(struct strfilter *filter);
82
83#endif

 1#ifndef __PERF_STRFILTER_H
 2#define __PERF_STRFILTER_H
 3/* General purpose glob matching filter */
 4
 5#include <linux/list.h>
 6#include <stdbool.h>
 7
 8/* A node of string filter */
 9struct strfilter_node {
10	struct strfilter_node *l;	/* Tree left branche (for &,|) */
11	struct strfilter_node *r;	/* Tree right branche (for !,&,|) */
12	const char *p;		/* Operator or rule */
13};
14
15/* String filter */
16struct strfilter {
17	struct strfilter_node *root;
18};
19
20/**
21 * strfilter__new - Create a new string filter
22 * @rules: Filter rule, which is a combination of glob expressions.
23 * @err: Pointer which points an error detected on @rules
24 *
25 * Parse @rules and return new strfilter. Return NULL if an error detected.
26 * In that case, *@err will indicate where it is detected, and *@err is NULL
27 * if a memory allocation is failed.
28 */
29struct strfilter *strfilter__new(const char *rules, const char **err);
30
31/**
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
32 * strfilter__compare - compare given string and a string filter
33 * @filter: String filter
34 * @str: target string
35 *
36 * Compare @str and @filter. Return true if the str match the rule
37 */
38bool strfilter__compare(struct strfilter *filter, const char *str);
39
40/**
41 * strfilter__delete - delete a string filter
42 * @filter: String filter to delete
43 *
44 * Delete @filter.
45 */
46void strfilter__delete(struct strfilter *filter);
 
 
 
 
 
 
 
 
 
47
48#endif