Fix: condition: buffer-usage: use double instead of fixed point
[lttng-tools.git] / include / lttng / condition / buffer-usage-internal.h
1 /*
2 * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com>
3 *
4 * SPDX-License-Identifier: LGPL-2.1-only
5 *
6 */
7
8 #ifndef LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H
9 #define LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H
10
11 #include <lttng/condition/buffer-usage.h>
12 #include <lttng/condition/condition-internal.h>
13 #include <lttng/condition/evaluation-internal.h>
14 #include <lttng/domain.h>
15 #include "common/buffer-view.h"
16 #include <common/macros.h>
17
18 struct lttng_condition_buffer_usage {
19 struct lttng_condition parent;
20 struct {
21 bool set;
22 uint64_t value;
23 } threshold_bytes;
24 struct {
25 bool set;
26 double value;
27 } threshold_ratio;
28 char *session_name;
29 char *channel_name;
30 struct {
31 bool set;
32 enum lttng_domain_type type;
33 } domain;
34 };
35
36 struct lttng_condition_buffer_usage_comm {
37 uint8_t threshold_set_in_bytes;
38 uint64_t threshold_bytes;
39 double threshold_ratio;
40 /* Both lengths include the trailing \0. */
41 uint32_t session_name_len;
42 uint32_t channel_name_len;
43 /* enum lttng_domain_type */
44 int8_t domain_type;
45 /* session and channel names. */
46 char names[];
47 } LTTNG_PACKED;
48
49 struct lttng_evaluation_buffer_usage {
50 struct lttng_evaluation parent;
51 uint64_t buffer_use;
52 uint64_t buffer_capacity;
53 };
54
55 struct lttng_evaluation_buffer_usage_comm {
56 uint64_t buffer_use;
57 uint64_t buffer_capacity;
58 } LTTNG_PACKED;
59
60 LTTNG_HIDDEN
61 struct lttng_evaluation *lttng_evaluation_buffer_usage_create(
62 enum lttng_condition_type type, uint64_t use,
63 uint64_t capacity);
64
65 LTTNG_HIDDEN
66 ssize_t lttng_condition_buffer_usage_low_create_from_payload(
67 struct lttng_payload_view *view,
68 struct lttng_condition **condition);
69
70 LTTNG_HIDDEN
71 ssize_t lttng_condition_buffer_usage_high_create_from_payload(
72 struct lttng_payload_view *view,
73 struct lttng_condition **condition);
74
75 LTTNG_HIDDEN
76 ssize_t lttng_evaluation_buffer_usage_low_create_from_payload(
77 struct lttng_payload_view *view,
78 struct lttng_evaluation **evaluation);
79
80 LTTNG_HIDDEN
81 ssize_t lttng_evaluation_buffer_usage_high_create_from_payload(
82 struct lttng_payload_view *view,
83 struct lttng_evaluation **evaluation);
84
85 #endif /* LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H */
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