51 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef __PERF_RBLIST_H3#define __PERF_RBLIST_H4 5#include <linux/rbtree.h>6#include <stdbool.h>7 8/*9 * create node structs of the form:10 * struct my_node {11 * struct rb_node rb_node;12 * ... my data ...13 * };14 *15 * create list structs of the form:16 * struct mylist {17 * struct rblist rblist;18 * ... my data ...19 * };20 */21 22struct rblist {23 struct rb_root_cached entries;24 unsigned int nr_entries;25 26 int (*node_cmp)(struct rb_node *rbn, const void *entry);27 struct rb_node *(*node_new)(struct rblist *rlist, const void *new_entry);28 void (*node_delete)(struct rblist *rblist, struct rb_node *rb_node);29};30 31void rblist__init(struct rblist *rblist);32void rblist__exit(struct rblist *rblist);33void rblist__delete(struct rblist *rblist);34int rblist__add_node(struct rblist *rblist, const void *new_entry);35void rblist__remove_node(struct rblist *rblist, struct rb_node *rb_node);36struct rb_node *rblist__find(struct rblist *rblist, const void *entry);37struct rb_node *rblist__findnew(struct rblist *rblist, const void *entry);38struct rb_node *rblist__entry(const struct rblist *rblist, unsigned int idx);39 40static inline bool rblist__empty(const struct rblist *rblist)41{42 return rblist->nr_entries == 0;43}44 45static inline unsigned int rblist__nr_entries(const struct rblist *rblist)46{47 return rblist->nr_entries;48}49 50#endif /* __PERF_RBLIST_H */51