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