2 * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 * This library is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU Lesser General Public License, version 2.1 only,
6 * as published by the Free Software Foundation.
8 * This library is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
13 * You should have received a copy of the GNU Lesser General Public License
14 * along with this library; if not, write to the Free Software Foundation,
15 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 #ifndef LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H
19 #define LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H
21 #include <lttng/condition/buffer-usage.h>
22 #include <lttng/condition/condition-internal.h>
23 #include <lttng/condition/evaluation-internal.h>
24 #include <lttng/domain.h>
25 #include "common/buffer-view.h"
26 #include <common/macros.h>
28 struct lttng_condition_buffer_usage
{
29 struct lttng_condition parent
;
42 enum lttng_domain_type type
;
46 struct lttng_condition_buffer_usage_comm
{
47 uint8_t threshold_set_in_bytes
;
49 * Expressed in bytes if "threshold_set_in_bytes" is not 0.
50 * Otherwise, it is expressed a ratio in the interval [0.0, 1.0]
51 * that is mapped to the range on a 32-bit unsigned integer.
52 * The ratio is obtained by (threshold / UINT32_MAX).
55 /* Both lengths include the trailing \0. */
56 uint32_t session_name_len
;
57 uint32_t channel_name_len
;
58 /* enum lttng_domain_type */
60 /* session and channel names. */
64 struct lttng_evaluation_buffer_usage
{
65 struct lttng_evaluation parent
;
67 uint64_t buffer_capacity
;
70 struct lttng_evaluation_buffer_usage_comm
{
72 uint64_t buffer_capacity
;
76 struct lttng_evaluation
*lttng_evaluation_buffer_usage_create(
77 enum lttng_condition_type type
, uint64_t use
,
81 ssize_t
lttng_condition_buffer_usage_low_create_from_buffer(
82 const struct lttng_buffer_view
*view
,
83 struct lttng_condition
**condition
);
86 ssize_t
lttng_condition_buffer_usage_high_create_from_buffer(
87 const struct lttng_buffer_view
*view
,
88 struct lttng_condition
**condition
);
91 ssize_t
lttng_evaluation_buffer_usage_low_create_from_buffer(
92 const struct lttng_buffer_view
*view
,
93 struct lttng_evaluation
**evaluation
);
96 ssize_t
lttng_evaluation_buffer_usage_high_create_from_buffer(
97 const struct lttng_buffer_view
*view
,
98 struct lttng_evaluation
**evaluation
);
100 #endif /* LTTNG_CONDITION_BUFFER_USAGE_INTERNAL_H */