405199b428fcae3004e3b5fdb97caaaf9e993b86
[lttng-tools.git] / include / lttng / condition / condition-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_INTERNAL_H
9 #define LTTNG_CONDITION_INTERNAL_H
10
11 #include <lttng/condition/condition.h>
12 #include <common/macros.h>
13 #include <common/payload-view.h>
14 #include <common/payload.h>
15 #include <stdbool.h>
16 #include <urcu/list.h>
17 #include <urcu/ref.h>
18 #include <stdint.h>
19 #include <sys/types.h>
20
21 typedef void (*condition_destroy_cb)(struct lttng_condition *condition);
22 typedef bool (*condition_validate_cb)(const struct lttng_condition *condition);
23 typedef int (*condition_serialize_cb)(
24 const struct lttng_condition *condition,
25 struct lttng_payload *payload);
26 typedef bool (*condition_equal_cb)(const struct lttng_condition *a,
27 const struct lttng_condition *b);
28 typedef ssize_t (*condition_create_from_payload_cb)(
29 struct lttng_payload_view *view,
30 struct lttng_condition **condition);
31
32 struct lttng_condition {
33 /* Reference counting is only exposed to internal users. */
34 struct urcu_ref ref;
35 enum lttng_condition_type type;
36 condition_validate_cb validate;
37 condition_serialize_cb serialize;
38 condition_equal_cb equal;
39 condition_destroy_cb destroy;
40 };
41
42 struct lttng_condition_comm {
43 /* enum lttng_condition_type */
44 int8_t condition_type;
45 char payload[];
46 };
47
48 LTTNG_HIDDEN
49 void lttng_condition_get(struct lttng_condition *condition);
50
51 LTTNG_HIDDEN
52 void lttng_condition_put(struct lttng_condition *condition);
53
54 LTTNG_HIDDEN
55 void lttng_condition_init(struct lttng_condition *condition,
56 enum lttng_condition_type type);
57
58 LTTNG_HIDDEN
59 bool lttng_condition_validate(const struct lttng_condition *condition);
60
61 LTTNG_HIDDEN
62 ssize_t lttng_condition_create_from_payload(
63 struct lttng_payload_view *view,
64 struct lttng_condition **condition);
65
66 LTTNG_HIDDEN
67 int lttng_condition_serialize(const struct lttng_condition *condition,
68 struct lttng_payload *payload);
69
70 LTTNG_HIDDEN
71 bool lttng_condition_is_equal(const struct lttng_condition *a,
72 const struct lttng_condition *b);
73
74 #endif /* LTTNG_CONDITION_INTERNAL_H */
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