linux/tools/perf/util/strlist.h

79 lines
2.2 KiB
C

#ifndef __PERF_STRLIST_H
#define __PERF_STRLIST_H
#include <linux/rbtree.h>
#include <stdbool.h>
struct str_node {
struct rb_node rb_node;
const char *s;
};
struct strlist {
struct rb_root entries;
unsigned int nr_entries;
bool dupstr;
};
struct strlist *strlist__new(bool dupstr, const char *slist);
void strlist__delete(struct strlist *self);
void strlist__remove(struct strlist *self, struct str_node *sn);
int strlist__load(struct strlist *self, const char *filename);
int strlist__add(struct strlist *self, const char *str);
struct str_node *strlist__entry(const struct strlist *self, unsigned int idx);
struct str_node *strlist__find(struct strlist *self, const char *entry);
static inline bool strlist__has_entry(struct strlist *self, const char *entry)
{
return strlist__find(self, entry) != NULL;
}
static inline bool strlist__empty(const struct strlist *self)
{
return self->nr_entries == 0;
}
static inline unsigned int strlist__nr_entries(const struct strlist *self)
{
return self->nr_entries;
}
/* For strlist iteration */
static inline struct str_node *strlist__first(struct strlist *self)
{
struct rb_node *rn = rb_first(&self->entries);
return rn ? rb_entry(rn, struct str_node, rb_node) : NULL;
}
static inline struct str_node *strlist__next(struct str_node *sn)
{
struct rb_node *rn;
if (!sn)
return NULL;
rn = rb_next(&sn->rb_node);
return rn ? rb_entry(rn, struct str_node, rb_node) : NULL;
}
/**
* strlist_for_each - iterate over a strlist
* @pos: the &struct str_node to use as a loop cursor.
* @self: the &struct strlist for loop.
*/
#define strlist__for_each(pos, self) \
for (pos = strlist__first(self); pos; pos = strlist__next(pos))
/**
* strlist_for_each_safe - iterate over a strlist safe against removal of
* str_node
* @pos: the &struct str_node to use as a loop cursor.
* @n: another &struct str_node to use as temporary storage.
* @self: the &struct strlist for loop.
*/
#define strlist__for_each_safe(pos, n, self) \
for (pos = strlist__first(self), n = strlist__next(pos); pos;\
pos = n, n = strlist__next(n))
int strlist__parse_list(struct strlist *self, const char *s);
#endif /* __PERF_STRLIST_H */