1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __PERF_INTLIST_H 3 #define __PERF_INTLIST_H 4 5 #include <linux/rbtree.h> 6 #include <stdbool.h> 7 8 #include "rblist.h" 9 10 struct int_node { 11 struct rb_node rb_node; 12 unsigned long i; 13 void *priv; 14 }; 15 16 struct intlist { 17 struct rblist rblist; 18 }; 19 20 struct intlist *intlist__new(const char *slist); 21 void intlist__delete(struct intlist *ilist); 22 23 void intlist__remove(struct intlist *ilist, struct int_node *in); 24 int intlist__add(struct intlist *ilist, unsigned long i); 25 26 struct int_node *intlist__entry(const struct intlist *ilist, unsigned int idx); 27 struct int_node *intlist__find(struct intlist *ilist, unsigned long i); 28 struct int_node *intlist__findnew(struct intlist *ilist, unsigned long i); 29 30 static inline bool intlist__has_entry(struct intlist *ilist, unsigned long i) 31 { 32 return intlist__find(ilist, i) != NULL; 33 } 34 35 static inline bool intlist__empty(const struct intlist *ilist) 36 { 37 return rblist__empty(&ilist->rblist); 38 } 39 40 static inline unsigned int intlist__nr_entries(const struct intlist *ilist) 41 { 42 return rblist__nr_entries(&ilist->rblist); 43 } 44 45 /* For intlist iteration */ 46 static inline struct int_node *intlist__first(struct intlist *ilist) 47 { 48 struct rb_node *rn = rb_first_cached(&ilist->rblist.entries); 49 return rn ? rb_entry(rn, struct int_node, rb_node) : NULL; 50 } 51 static inline struct int_node *intlist__next(struct int_node *in) 52 { 53 struct rb_node *rn; 54 if (!in) 55 return NULL; 56 rn = rb_next(&in->rb_node); 57 return rn ? rb_entry(rn, struct int_node, rb_node) : NULL; 58 } 59 60 /** 61 * intlist__for_each_entry - iterate over a intlist 62 * @pos: the &struct int_node to use as a loop cursor. 63 * @ilist: the &struct intlist for loop. 64 */ 65 #define intlist__for_each_entry(pos, ilist) \ 66 for (pos = intlist__first(ilist); pos; pos = intlist__next(pos)) 67 68 /** 69 * intlist__for_each_entry_safe - iterate over a intlist safe against removal of 70 * int_node 71 * @pos: the &struct int_node to use as a loop cursor. 72 * @n: another &struct int_node to use as temporary storage. 73 * @ilist: the &struct intlist for loop. 74 */ 75 #define intlist__for_each_entry_safe(pos, n, ilist) \ 76 for (pos = intlist__first(ilist), n = intlist__next(pos); pos;\ 77 pos = n, n = intlist__next(n)) 78 #endif /* __PERF_INTLIST_H */ 79