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1 | #ifndef BABELTRACE_CTF_IR_EVENT_INTERNAL_H |
2 | #define BABELTRACE_CTF_IR_EVENT_INTERNAL_H | |
273b65be JG |
3 | |
4 | /* | |
1c822dfb | 5 | * Babeltrace - CTF IR: Event internal |
273b65be | 6 | * |
1c822dfb | 7 | * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
273b65be JG |
8 | * |
9 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
10 | * | |
11 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
12 | * of this software and associated documentation files (the "Software"), to deal | |
13 | * in the Software without restriction, including without limitation the rights | |
14 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
15 | * copies of the Software, and to permit persons to whom the Software is | |
16 | * furnished to do so, subject to the following conditions: | |
17 | * | |
18 | * The above copyright notice and this permission notice shall be included in | |
19 | * all copies or substantial portions of the Software. | |
20 | * | |
21 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
22 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
23 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
24 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
25 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
26 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
27 | * SOFTWARE. | |
28 | */ | |
29 | ||
273b65be JG |
30 | #include <babeltrace/ctf-writer/event-types.h> |
31 | #include <babeltrace/ctf-writer/event-fields.h> | |
32 | #include <babeltrace/babeltrace-internal.h> | |
1c822dfb | 33 | #include <babeltrace/values.h> |
273b65be | 34 | #include <babeltrace/ctf/types.h> |
1c822dfb | 35 | #include <babeltrace/ctf-ir/stream-class.h> |
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36 | #include <babeltrace/ctf-ir/packet.h> |
37 | #include <babeltrace/object-internal.h> | |
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38 | #include <glib.h> |
39 | ||
273b65be | 40 | struct bt_ctf_event { |
1c822dfb | 41 | struct bt_object base; |
273b65be | 42 | struct bt_ctf_event_class *event_class; |
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43 | struct bt_ctf_packet *packet; |
44 | struct bt_ctf_field *event_header; | |
45 | struct bt_ctf_field *stream_event_context; | |
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46 | struct bt_ctf_field *context_payload; |
47 | struct bt_ctf_field *fields_payload; | |
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48 | GHashTable *clock_values; /* Maps clock addresses to (uint64_t *) */ |
49 | int frozen; | |
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50 | }; |
51 | ||
52 | BT_HIDDEN | |
1c822dfb | 53 | int bt_ctf_event_register_stream_clock_values(struct bt_ctf_event *event); |
273b65be JG |
54 | |
55 | BT_HIDDEN | |
56 | int bt_ctf_event_validate(struct bt_ctf_event *event); | |
57 | ||
58 | BT_HIDDEN | |
59 | int bt_ctf_event_serialize(struct bt_ctf_event *event, | |
60 | struct ctf_stream_pos *pos); | |
61 | ||
1c822dfb JG |
62 | /* |
63 | * Attempt to populate the "id" and "timestamp" fields of the event header if | |
64 | * they are present, unset and their types are integers. | |
65 | * | |
66 | * Not finding these fields or encountering unexpected types is not an error | |
67 | * since the user may have defined a different event header layout. In this | |
68 | * case, it is expected that the fields be manually populated before appending | |
69 | * an event to a stream. | |
70 | */ | |
273b65be | 71 | BT_HIDDEN |
1c822dfb | 72 | int bt_ctf_event_populate_event_header(struct bt_ctf_event *event); |
273b65be JG |
73 | |
74 | BT_HIDDEN | |
1c822dfb | 75 | void bt_ctf_event_freeze(struct bt_ctf_event *event); |
273b65be | 76 | |
b9f417f3 JG |
77 | /* |
78 | * bt_ctf_event_get_class: get an event's class. | |
79 | * | |
80 | * @param event Event. | |
81 | * | |
82 | * Returns the event's class, NULL on error. | |
83 | */ | |
84 | BT_HIDDEN | |
85 | struct bt_ctf_event_class *bt_ctf_event_get_class(struct bt_ctf_event *event); | |
86 | ||
87 | /* | |
88 | * bt_ctf_event_get_stream: get an event's associated stream. | |
89 | * | |
90 | * @param event Event. | |
91 | * | |
92 | * Returns the event's associated stream, NULL on error. | |
93 | */ | |
94 | BT_HIDDEN | |
95 | struct bt_ctf_stream *bt_ctf_event_get_stream(struct bt_ctf_event *event); | |
96 | ||
97 | /* | |
98 | * bt_ctf_event_get_clock: get an event's associated clock. | |
99 | * | |
100 | * @param event Event. | |
101 | * | |
102 | * Returns the event's clock, NULL on error. | |
103 | */ | |
104 | BT_HIDDEN | |
105 | struct bt_ctf_clock *bt_ctf_event_get_clock(struct bt_ctf_event *event); | |
106 | ||
107 | /* | |
108 | * bt_ctf_event_get_payload_field: get an event's payload. | |
109 | * | |
110 | * @param event Event instance. | |
111 | * | |
112 | * Returns a field instance on success, NULL on error. | |
113 | */ | |
114 | BT_HIDDEN | |
115 | struct bt_ctf_field *bt_ctf_event_get_payload_field(struct bt_ctf_event *event); | |
116 | ||
117 | /* | |
118 | * bt_ctf_event_set_payload_field: set an event's payload. | |
119 | * | |
120 | * @param event Event instance. | |
121 | * @param payload Field instance (must be a structure). | |
122 | * | |
123 | * Returns 0 on success, a negative value on error. | |
124 | */ | |
125 | BT_HIDDEN | |
126 | int bt_ctf_event_set_payload_field(struct bt_ctf_event *event, | |
127 | struct bt_ctf_field *payload); | |
128 | ||
129 | /* | |
130 | * bt_ctf_event_get_payload_by_index: Get event's field by index. | |
131 | * | |
132 | * Returns the field associated with the provided index. bt_ctf_field_put() | |
133 | * must be called on the returned value. The indexes to be provided are | |
134 | * the same as can be retrieved from the event class. | |
135 | * | |
136 | * @param event Event. | |
137 | * @param index Index of field. | |
138 | * | |
139 | * Returns the event's field, NULL on error. | |
140 | * | |
141 | * Note: Will return an error if the payload's type is not a structure. | |
142 | */ | |
143 | BT_HIDDEN | |
144 | struct bt_ctf_field *bt_ctf_event_get_payload_by_index( | |
145 | struct bt_ctf_event *event, int index); | |
146 | ||
147 | /* | |
148 | * bt_ctf_event_get_header: get an event's header. | |
149 | * | |
150 | * @param event Event instance. | |
151 | * | |
152 | * Returns a field instance on success, NULL on error. | |
153 | */ | |
154 | BT_HIDDEN | |
155 | struct bt_ctf_field *bt_ctf_event_get_header(struct bt_ctf_event *event); | |
156 | ||
157 | /* | |
158 | * bt_ctf_event_get_event_context: Get an event's context | |
159 | * | |
160 | * @param event_class Event class. | |
161 | * | |
162 | * Returns a field on success (a structure), NULL on error. | |
163 | * | |
164 | * Note: This function is named this way instead of the expected | |
165 | * "bt_ctf_event_get_context" in order to work around a name clash with | |
166 | * an unrelated function bearing this name in context.h. | |
167 | */ | |
168 | BT_HIDDEN | |
169 | struct bt_ctf_field *bt_ctf_event_get_event_context(struct bt_ctf_event *event); | |
170 | ||
171 | /* | |
172 | * bt_ctf_event_get_stream_event_context: Get an event's stream event context | |
173 | * | |
174 | * @param event_class Event class. | |
175 | * | |
176 | * Returns a field on success (a structure), NULL on error. | |
177 | */ | |
178 | BT_HIDDEN | |
179 | struct bt_ctf_field *bt_ctf_event_get_stream_event_context( | |
180 | struct bt_ctf_event *event); | |
181 | ||
182 | BT_HIDDEN | |
183 | uint64_t bt_ctf_event_get_clock_value(struct bt_ctf_event *event, | |
184 | struct bt_ctf_clock *clock); | |
185 | ||
186 | /* | |
187 | * bt_ctf_event_set_header: set an event's header. | |
188 | * | |
189 | * The event header's type must match the stream class' event | |
190 | * header type. | |
191 | * | |
192 | * @param event Event instance. | |
193 | * @param header Event header field instance. | |
194 | * | |
195 | * Returns a field instance on success, NULL on error. | |
196 | */ | |
197 | BT_HIDDEN | |
198 | int bt_ctf_event_set_header( | |
199 | struct bt_ctf_event *event, | |
200 | struct bt_ctf_field *header); | |
201 | ||
202 | /* | |
203 | * bt_ctf_event_set_event_context: Set an event's context | |
204 | * | |
205 | * @param event Event. | |
206 | * @param context Event context field (must match the event class' | |
207 | * context type). | |
208 | * | |
209 | * Returns 0 on success, a negative value on error. | |
210 | */ | |
211 | BT_HIDDEN | |
212 | int bt_ctf_event_set_event_context(struct bt_ctf_event *event, | |
213 | struct bt_ctf_field *context); | |
214 | ||
215 | /* | |
216 | * bt_ctf_event_set_stream_event_context: Set an event's stream event context | |
217 | * | |
218 | * @param event Event. | |
219 | * @param context Event stream context field (must match the stream class' | |
220 | * stream event context type). | |
221 | * | |
222 | * Returns 0 on success, a negative value on error. | |
223 | */ | |
224 | BT_HIDDEN | |
225 | int bt_ctf_event_set_stream_event_context(struct bt_ctf_event *event, | |
226 | struct bt_ctf_field *context); | |
227 | ||
228 | BT_HIDDEN | |
229 | int bt_ctf_event_set_packet(struct bt_ctf_event *event, | |
230 | struct bt_ctf_packet *packet); | |
231 | ||
1c822dfb | 232 | #endif /* BABELTRACE_CTF_IR_EVENT_INTERNAL_H */ |