perf tools: Factorize the map helpers
[linux-2.6.git] / tools / perf / util / callchain.h
1 #ifndef __PERF_CALLCHAIN_H
2 #define __PERF_CALLCHAIN_H
3
4 #include "../perf.h"
5 #include <linux/list.h>
6 #include <linux/rbtree.h>
7 #include "util.h"
8 #include "symbol.h"
9
10 enum chain_mode {
11         CHAIN_NONE,
12         CHAIN_FLAT,
13         CHAIN_GRAPH_ABS,
14         CHAIN_GRAPH_REL
15 };
16
17 struct callchain_node {
18         struct callchain_node   *parent;
19         struct list_head        brothers;
20         struct list_head        children;
21         struct list_head        val;
22         struct rb_node          rb_node; /* to sort nodes in an rbtree */
23         struct rb_root          rb_root; /* sorted tree of children */
24         unsigned int            val_nr;
25         u64                     hit;
26         u64                     children_hit;
27 };
28
29 struct callchain_param;
30
31 typedef void (*sort_chain_func_t)(struct rb_root *, struct callchain_node *,
32                                  u64, struct callchain_param *);
33
34 struct callchain_param {
35         enum chain_mode         mode;
36         double                  min_percent;
37         sort_chain_func_t       sort;
38 };
39
40 struct callchain_list {
41         u64                     ip;
42         struct symbol           *sym;
43         struct list_head        list;
44 };
45
46 static inline void callchain_init(struct callchain_node *node)
47 {
48         INIT_LIST_HEAD(&node->brothers);
49         INIT_LIST_HEAD(&node->children);
50         INIT_LIST_HEAD(&node->val);
51 }
52
53 static inline u64 cumul_hits(struct callchain_node *node)
54 {
55         return node->hit + node->children_hit;
56 }
57
58 int register_callchain_param(struct callchain_param *param);
59 void append_chain(struct callchain_node *root, struct ip_callchain *chain,
60                   struct symbol **syms);
61 #endif