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 #include <lttng/condition/evaluation-internal.h>
19 #include <lttng/condition/buffer-usage-internal.h>
20 #include <lttng/condition/session-consumed-size-internal.h>
21 #include <lttng/condition/session-rotation-internal.h>
22 #include <common/macros.h>
23 #include <common/error.h>
28 void lttng_evaluation_init(struct lttng_evaluation
*evaluation
,
29 enum lttng_condition_type type
)
31 evaluation
->type
= type
;
35 int lttng_evaluation_serialize(const struct lttng_evaluation
*evaluation
,
36 struct lttng_dynamic_buffer
*buf
)
39 struct lttng_evaluation_comm evaluation_comm
= {
40 .type
= (int8_t) evaluation
->type
43 ret
= lttng_dynamic_buffer_append(buf
, &evaluation_comm
,
44 sizeof(evaluation_comm
));
49 if (evaluation
->serialize
) {
50 ret
= evaluation
->serialize(evaluation
, buf
);
60 ssize_t
lttng_evaluation_create_from_buffer(
61 const struct lttng_buffer_view
*src_view
,
62 struct lttng_evaluation
**evaluation
)
64 ssize_t ret
, evaluation_size
= 0;
65 const struct lttng_evaluation_comm
*evaluation_comm
;
66 const struct lttng_buffer_view evaluation_view
=
67 lttng_buffer_view_from_view(src_view
,
68 sizeof(*evaluation_comm
), -1);
70 if (!src_view
|| !evaluation
) {
75 evaluation_comm
= (const struct lttng_evaluation_comm
*) src_view
->data
;
76 evaluation_size
+= sizeof(*evaluation_comm
);
78 switch ((enum lttng_condition_type
) evaluation_comm
->type
) {
79 case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW
:
80 ret
= lttng_evaluation_buffer_usage_low_create_from_buffer(
81 &evaluation_view
, evaluation
);
85 evaluation_size
+= ret
;
87 case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH
:
88 ret
= lttng_evaluation_buffer_usage_high_create_from_buffer(
89 &evaluation_view
, evaluation
);
93 evaluation_size
+= ret
;
95 case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE
:
96 ret
= lttng_evaluation_session_consumed_size_create_from_buffer(
97 &evaluation_view
, evaluation
);
101 evaluation_size
+= ret
;
103 case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING
:
104 ret
= lttng_evaluation_session_rotation_ongoing_create_from_buffer(
105 &evaluation_view
, evaluation
);
109 evaluation_size
+= ret
;
111 case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED
:
112 ret
= lttng_evaluation_session_rotation_completed_create_from_buffer(
113 &evaluation_view
, evaluation
);
117 evaluation_size
+= ret
;
120 ERR("Attempted to create evaluation of unknown type (%i)",
121 (int) evaluation_comm
->type
);
125 ret
= evaluation_size
;
130 enum lttng_condition_type
lttng_evaluation_get_type(
131 const struct lttng_evaluation
*evaluation
)
133 return evaluation
? evaluation
->type
: LTTNG_CONDITION_TYPE_UNKNOWN
;
136 void lttng_evaluation_destroy(struct lttng_evaluation
*evaluation
)
142 assert(evaluation
->destroy
);
143 evaluation
->destroy(evaluation
);