1 /**
2  * collectd - src/utils_taskstats.h
3  * Copyright (C) 2017       Florian octo Forster
4  *
5  * ISC License (ISC)
6  *
7  * Permission to use, copy, modify, and/or distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  *
19  * Authors:
20  *   Florian octo Forster <octo at collectd.org>
21  */
22 
23 #ifndef UTILS_TASKSTATS_H
24 #define UTILS_TASKSTATS_H 1
25 
26 #include "collectd.h"
27 
28 #include "utils_time.h"
29 
30 struct ts_s;
31 typedef struct ts_s ts_t;
32 
33 typedef struct {
34   uint64_t cpu_ns;
35   uint64_t blkio_ns;
36   uint64_t swapin_ns;
37   uint64_t freepages_ns;
38 } ts_delay_t;
39 
40 ts_t *ts_create(void);
41 void ts_destroy(ts_t *);
42 
43 /* ts_delay_by_tgid returns Linux delay accounting information for the task
44  * identified by tgid. Returns zero on success and an errno otherwise. */
45 int ts_delay_by_tgid(ts_t *ts, uint32_t tgid, ts_delay_t *out);
46 
47 #endif /* UTILS_TASKSTATS_H */
48