1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */ 237bbd3ffSDavid Ahern #ifndef __PERF_RBLIST_H 337bbd3ffSDavid Ahern #define __PERF_RBLIST_H 437bbd3ffSDavid Ahern 537bbd3ffSDavid Ahern #include <linux/rbtree.h> 637bbd3ffSDavid Ahern #include <stdbool.h> 737bbd3ffSDavid Ahern 837bbd3ffSDavid Ahern /* 937bbd3ffSDavid Ahern * create node structs of the form: 1037bbd3ffSDavid Ahern * struct my_node { 1137bbd3ffSDavid Ahern * struct rb_node rb_node; 1237bbd3ffSDavid Ahern * ... my data ... 1337bbd3ffSDavid Ahern * }; 1437bbd3ffSDavid Ahern * 1537bbd3ffSDavid Ahern * create list structs of the form: 1637bbd3ffSDavid Ahern * struct mylist { 1737bbd3ffSDavid Ahern * struct rblist rblist; 1837bbd3ffSDavid Ahern * ... my data ... 1937bbd3ffSDavid Ahern * }; 2037bbd3ffSDavid Ahern */ 2137bbd3ffSDavid Ahern 2237bbd3ffSDavid Ahern struct rblist { 23*ca227029SDavidlohr Bueso struct rb_root_cached entries; 2437bbd3ffSDavid Ahern unsigned int nr_entries; 2537bbd3ffSDavid Ahern 2637bbd3ffSDavid Ahern int (*node_cmp)(struct rb_node *rbn, const void *entry); 2737bbd3ffSDavid Ahern struct rb_node *(*node_new)(struct rblist *rlist, const void *new_entry); 2837bbd3ffSDavid Ahern void (*node_delete)(struct rblist *rblist, struct rb_node *rb_node); 2937bbd3ffSDavid Ahern }; 3037bbd3ffSDavid Ahern 3137bbd3ffSDavid Ahern void rblist__init(struct rblist *rblist); 3233fec3e3SJin Yao void rblist__exit(struct rblist *rblist); 3337bbd3ffSDavid Ahern void rblist__delete(struct rblist *rblist); 3437bbd3ffSDavid Ahern int rblist__add_node(struct rblist *rblist, const void *new_entry); 3537bbd3ffSDavid Ahern void rblist__remove_node(struct rblist *rblist, struct rb_node *rb_node); 3637bbd3ffSDavid Ahern struct rb_node *rblist__find(struct rblist *rblist, const void *entry); 37813335b8SDavid Ahern struct rb_node *rblist__findnew(struct rblist *rblist, const void *entry); 3837bbd3ffSDavid Ahern struct rb_node *rblist__entry(const struct rblist *rblist, unsigned int idx); 3937bbd3ffSDavid Ahern rblist__empty(const struct rblist * rblist)4037bbd3ffSDavid Ahernstatic inline bool rblist__empty(const struct rblist *rblist) 4137bbd3ffSDavid Ahern { 4237bbd3ffSDavid Ahern return rblist->nr_entries == 0; 4337bbd3ffSDavid Ahern } 4437bbd3ffSDavid Ahern rblist__nr_entries(const struct rblist * rblist)4537bbd3ffSDavid Ahernstatic inline unsigned int rblist__nr_entries(const struct rblist *rblist) 4637bbd3ffSDavid Ahern { 4737bbd3ffSDavid Ahern return rblist->nr_entries; 4837bbd3ffSDavid Ahern } 4937bbd3ffSDavid Ahern 5037bbd3ffSDavid Ahern #endif /* __PERF_RBLIST_H */ 51