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4c5c8fc8 JG |
1 | /* |
2 | * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
3 | * | |
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. | |
7 | * | |
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 | |
11 | * for more details. | |
12 | * | |
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 | |
16 | */ | |
17 | ||
18 | #include <lttng/condition/condition-internal.h> | |
19 | #include <common/macros.h> | |
20 | #include <stdbool.h> | |
21 | #include <assert.h> | |
22 | ||
23 | enum lttng_condition_type lttng_condition_get_type( | |
24 | struct lttng_condition *condition) | |
25 | { | |
26 | return condition ? condition->type : LTTNG_CONDITION_TYPE_UNKNOWN; | |
27 | } | |
28 | ||
29 | void lttng_condition_destroy(struct lttng_condition *condition) | |
30 | { | |
31 | if (!condition) { | |
32 | return; | |
33 | } | |
34 | ||
35 | assert(condition->destroy); | |
36 | condition->destroy(condition); | |
37 | } | |
38 | ||
39 | LTTNG_HIDDEN | |
40 | bool lttng_condition_validate(struct lttng_condition *condition) | |
41 | { | |
42 | bool valid; | |
43 | ||
44 | if (!condition) { | |
45 | valid = false; | |
46 | goto end; | |
47 | } | |
48 | ||
49 | if (!condition->validate) { | |
50 | /* Sub-class guarantees that it can never be invalid. */ | |
51 | valid = true; | |
52 | goto end; | |
53 | } | |
54 | ||
55 | valid = condition->validate(condition); | |
56 | end: | |
57 | return valid; | |
58 | } | |
2a38b722 JG |
59 | |
60 | LTTNG_HIDDEN | |
61 | ssize_t lttng_condition_serialize(struct lttng_condition *condition, char *buf) | |
62 | { | |
63 | ssize_t ret, condition_size; | |
64 | struct lttng_condition_comm condition_comm; | |
65 | ||
66 | if (!condition) { | |
67 | ret = -1; | |
68 | goto end; | |
69 | } | |
70 | ||
71 | condition_comm.condition_type = (int8_t) condition->type; | |
72 | ret = sizeof(struct lttng_condition_comm); | |
73 | if (buf) { | |
74 | memcpy(buf, &condition_comm, ret); | |
75 | buf += ret; | |
76 | } | |
77 | ||
78 | condition_size = condition->serialize(condition, buf); | |
79 | if (condition_size < 0) { | |
80 | ret = condition_size; | |
81 | goto end; | |
82 | } | |
83 | ret += condition_size; | |
84 | end: | |
85 | return ret; | |
86 | } |