1
2#ifndef __ORDERED_EVENTS_H
3#define __ORDERED_EVENTS_H
4
5#include <linux/types.h>
6
7struct perf_sample;
8
9struct ordered_event {
10 u64 timestamp;
11 u64 file_offset;
12 union perf_event *event;
13 struct list_head list;
14};
15
16enum oe_flush {
17 OE_FLUSH__NONE,
18 OE_FLUSH__FINAL,
19 OE_FLUSH__ROUND,
20 OE_FLUSH__HALF,
21 OE_FLUSH__TOP,
22 OE_FLUSH__TIME,
23};
24
25struct ordered_events;
26
27typedef int (*ordered_events__deliver_t)(struct ordered_events *oe,
28 struct ordered_event *event);
29
30struct ordered_events_buffer {
31 struct list_head list;
32 struct ordered_event event[];
33};
34
35struct ordered_events {
36 u64 last_flush;
37 u64 next_flush;
38 u64 max_timestamp;
39 u64 max_alloc_size;
40 u64 cur_alloc_size;
41 struct list_head events;
42 struct list_head cache;
43 struct list_head to_free;
44 struct ordered_events_buffer *buffer;
45 struct ordered_event *last;
46 ordered_events__deliver_t deliver;
47 int buffer_idx;
48 unsigned int nr_events;
49 enum oe_flush last_flush_type;
50 u32 nr_unordered_events;
51 bool copy_on_queue;
52 void *data;
53};
54
55int ordered_events__queue(struct ordered_events *oe, union perf_event *event,
56 u64 timestamp, u64 file_offset);
57void ordered_events__delete(struct ordered_events *oe, struct ordered_event *event);
58int ordered_events__flush(struct ordered_events *oe, enum oe_flush how);
59int ordered_events__flush_time(struct ordered_events *oe, u64 timestamp);
60void ordered_events__init(struct ordered_events *oe, ordered_events__deliver_t deliver,
61 void *data);
62void ordered_events__free(struct ordered_events *oe);
63void ordered_events__reinit(struct ordered_events *oe);
64u64 ordered_events__first_time(struct ordered_events *oe);
65
66static inline
67void ordered_events__set_alloc_size(struct ordered_events *oe, u64 size)
68{
69 oe->max_alloc_size = size;
70}
71
72static inline
73void ordered_events__set_copy_on_queue(struct ordered_events *oe, bool copy)
74{
75 oe->copy_on_queue = copy;
76}
77#endif
78
