Commit | Line | Data |
---|---|---|
a58c490f | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
a58c490f | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: LGPL-2.1-only |
a58c490f | 5 | * |
a58c490f JG |
6 | */ |
7 | ||
7c920b63 | 8 | #include <lttng/condition/condition-internal.h> |
a58c490f JG |
9 | #include <lttng/condition/evaluation-internal.h> |
10 | #include <lttng/condition/buffer-usage-internal.h> | |
e8360425 | 11 | #include <lttng/condition/session-consumed-size-internal.h> |
c19092cd | 12 | #include <lttng/condition/session-rotation-internal.h> |
e393070a | 13 | #include <lttng/condition/on-event-internal.h> |
a58c490f JG |
14 | #include <common/macros.h> |
15 | #include <common/error.h> | |
16 | #include <stdbool.h> | |
17 | #include <assert.h> | |
18 | ||
c19092cd JG |
19 | LTTNG_HIDDEN |
20 | void lttng_evaluation_init(struct lttng_evaluation *evaluation, | |
21 | enum lttng_condition_type type) | |
22 | { | |
23 | evaluation->type = type; | |
24 | } | |
25 | ||
a58c490f | 26 | LTTNG_HIDDEN |
9b63a4aa | 27 | int lttng_evaluation_serialize(const struct lttng_evaluation *evaluation, |
c0a66c84 | 28 | struct lttng_payload *payload) |
a58c490f | 29 | { |
3647288f | 30 | int ret; |
db315d75 JG |
31 | struct lttng_evaluation_comm evaluation_comm = { |
32 | .type = (int8_t) evaluation->type | |
33 | }; | |
a58c490f | 34 | |
c0a66c84 | 35 | ret = lttng_dynamic_buffer_append(&payload->buffer, &evaluation_comm, |
3647288f JG |
36 | sizeof(evaluation_comm)); |
37 | if (ret) { | |
38 | goto end; | |
a58c490f | 39 | } |
a58c490f JG |
40 | |
41 | if (evaluation->serialize) { | |
c0a66c84 | 42 | ret = evaluation->serialize(evaluation, payload); |
3647288f | 43 | if (ret) { |
a58c490f JG |
44 | goto end; |
45 | } | |
a58c490f | 46 | } |
a58c490f JG |
47 | end: |
48 | return ret; | |
49 | } | |
50 | ||
51 | LTTNG_HIDDEN | |
c0a66c84 | 52 | ssize_t lttng_evaluation_create_from_payload( |
7c920b63 | 53 | const struct lttng_condition *condition, |
c0a66c84 | 54 | struct lttng_payload_view *src_view, |
a58c490f JG |
55 | struct lttng_evaluation **evaluation) |
56 | { | |
57 | ssize_t ret, evaluation_size = 0; | |
58 | const struct lttng_evaluation_comm *evaluation_comm; | |
3e6e0df2 JG |
59 | struct lttng_payload_view evaluation_comm_view = |
60 | lttng_payload_view_from_view( | |
61 | src_view, 0, sizeof(*evaluation_comm)); | |
62 | struct lttng_payload_view evaluation_view = | |
2f571d6f | 63 | lttng_payload_view_from_view(src_view, |
3e6e0df2 | 64 | sizeof(*evaluation_comm), -1); |
a58c490f JG |
65 | |
66 | if (!src_view || !evaluation) { | |
67 | ret = -1; | |
68 | goto end; | |
69 | } | |
70 | ||
3e6e0df2 JG |
71 | if (!lttng_payload_view_is_valid(&evaluation_comm_view)) { |
72 | ret = -1; | |
73 | goto end; | |
74 | } | |
75 | ||
76 | evaluation_comm = (typeof(evaluation_comm)) evaluation_comm_view.buffer.data; | |
a58c490f JG |
77 | evaluation_size += sizeof(*evaluation_comm); |
78 | ||
79 | switch ((enum lttng_condition_type) evaluation_comm->type) { | |
80 | case LTTNG_CONDITION_TYPE_BUFFER_USAGE_LOW: | |
c0a66c84 | 81 | ret = lttng_evaluation_buffer_usage_low_create_from_payload( |
a58c490f JG |
82 | &evaluation_view, evaluation); |
83 | if (ret < 0) { | |
84 | goto end; | |
85 | } | |
86 | evaluation_size += ret; | |
87 | break; | |
88 | case LTTNG_CONDITION_TYPE_BUFFER_USAGE_HIGH: | |
c0a66c84 | 89 | ret = lttng_evaluation_buffer_usage_high_create_from_payload( |
a58c490f JG |
90 | &evaluation_view, evaluation); |
91 | if (ret < 0) { | |
92 | goto end; | |
93 | } | |
94 | evaluation_size += ret; | |
95 | break; | |
e8360425 | 96 | case LTTNG_CONDITION_TYPE_SESSION_CONSUMED_SIZE: |
c0a66c84 | 97 | ret = lttng_evaluation_session_consumed_size_create_from_payload( |
e8360425 JD |
98 | &evaluation_view, evaluation); |
99 | if (ret < 0) { | |
100 | goto end; | |
101 | } | |
102 | evaluation_size += ret; | |
103 | break; | |
c19092cd | 104 | case LTTNG_CONDITION_TYPE_SESSION_ROTATION_ONGOING: |
c0a66c84 | 105 | ret = lttng_evaluation_session_rotation_ongoing_create_from_payload( |
c19092cd JG |
106 | &evaluation_view, evaluation); |
107 | if (ret < 0) { | |
108 | goto end; | |
109 | } | |
110 | evaluation_size += ret; | |
111 | break; | |
112 | case LTTNG_CONDITION_TYPE_SESSION_ROTATION_COMPLETED: | |
c0a66c84 | 113 | ret = lttng_evaluation_session_rotation_completed_create_from_payload( |
c19092cd JG |
114 | &evaluation_view, evaluation); |
115 | if (ret < 0) { | |
116 | goto end; | |
117 | } | |
118 | evaluation_size += ret; | |
119 | break; | |
d602bd6a | 120 | case LTTNG_CONDITION_TYPE_ON_EVENT: |
7c920b63 | 121 | assert(condition); |
d602bd6a JR |
122 | assert(condition->type == LTTNG_CONDITION_TYPE_ON_EVENT); |
123 | ret = lttng_evaluation_on_event_create_from_payload( | |
7c920b63 | 124 | container_of(condition, |
d602bd6a | 125 | const struct lttng_condition_on_event, |
7c920b63 PP |
126 | parent), |
127 | &evaluation_view, evaluation); | |
f1446131 JR |
128 | if (ret < 0) { |
129 | goto end; | |
130 | } | |
131 | evaluation_size += ret; | |
132 | break; | |
a58c490f JG |
133 | default: |
134 | ERR("Attempted to create evaluation of unknown type (%i)", | |
135 | (int) evaluation_comm->type); | |
136 | ret = -1; | |
137 | goto end; | |
138 | } | |
c0a66c84 | 139 | |
a58c490f JG |
140 | ret = evaluation_size; |
141 | end: | |
142 | return ret; | |
143 | } | |
144 | ||
145 | enum lttng_condition_type lttng_evaluation_get_type( | |
146 | const struct lttng_evaluation *evaluation) | |
147 | { | |
148 | return evaluation ? evaluation->type : LTTNG_CONDITION_TYPE_UNKNOWN; | |
149 | } | |
150 | ||
151 | void lttng_evaluation_destroy(struct lttng_evaluation *evaluation) | |
152 | { | |
153 | if (!evaluation) { | |
154 | return; | |
155 | } | |
156 | ||
157 | assert(evaluation->destroy); | |
158 | evaluation->destroy(evaluation); | |
159 | } |