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1 | #ifndef BABELTRACE_CTF_IR_EVENT_CLASS_INTERNAL_H |
2 | #define BABELTRACE_CTF_IR_EVENT_CLASS_INTERNAL_H | |
273b65be JG |
3 | |
4 | /* | |
1c822dfb | 5 | * Babeltrace - CTF IR: Event class 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 | ||
1c822dfb JG |
30 | #include <babeltrace/ctf-ir/field-types.h> |
31 | #include <babeltrace/ctf-ir/fields.h> | |
273b65be | 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> |
1c822dfb | 36 | #include <babeltrace/object-internal.h> |
273b65be JG |
37 | #include <glib.h> |
38 | ||
1c822dfb JG |
39 | #define BT_CTF_EVENT_CLASS_ATTR_ID_INDEX 0 |
40 | #define BT_CTF_EVENT_CLASS_ATTR_NAME_INDEX 1 | |
41 | ||
273b65be | 42 | struct bt_ctf_event_class { |
1c822dfb JG |
43 | struct bt_object base; |
44 | struct bt_value *attributes; | |
273b65be JG |
45 | /* Structure type containing the event's context */ |
46 | struct bt_ctf_field_type *context; | |
47 | /* Structure type containing the event's fields */ | |
48 | struct bt_ctf_field_type *fields; | |
49 | int frozen; | |
273b65be | 50 | |
1c822dfb JG |
51 | /* |
52 | * This flag indicates if the event class is valid. A valid | |
53 | * event class is _always_ frozen. However, an event class | |
54 | * may be frozen, but not valid yet. This is okay, as long as | |
55 | * no events are created out of this event class. | |
56 | */ | |
57 | int valid; | |
273b65be JG |
58 | }; |
59 | ||
60 | BT_HIDDEN | |
61 | void bt_ctf_event_class_freeze(struct bt_ctf_event_class *event_class); | |
62 | ||
273b65be JG |
63 | BT_HIDDEN |
64 | int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class, | |
65 | struct metadata_context *context); | |
66 | ||
67 | BT_HIDDEN | |
1c822dfb JG |
68 | void bt_ctf_event_class_set_native_byte_order( |
69 | struct bt_ctf_event_class *event_class, | |
70 | int byte_order); | |
273b65be JG |
71 | |
72 | BT_HIDDEN | |
1c822dfb JG |
73 | int bt_ctf_event_class_set_stream_id(struct bt_ctf_event_class *event_class, |
74 | uint32_t stream_id); | |
273b65be | 75 | |
55667b40 JG |
76 | /* |
77 | * bt_ctf_event_class_set_attribute: sets an attribute to the event | |
78 | * class. | |
79 | * | |
80 | * Sets an attribute to the event class. The name parameter is copied, | |
81 | * whereas the value parameter's reference count is incremented | |
82 | * (if the function succeeds). | |
83 | * | |
84 | * If an attribute exists in the event class for the specified name, it | |
85 | * is replaced by the new value. | |
86 | * | |
87 | * Valid attributes and object types are: | |
88 | * | |
89 | * - "id": integer object with a value >= 0 | |
90 | * - "name": string object | |
91 | * - "loglevel": integer object with a value >= 0 | |
92 | * - "model.emf.uri": string object | |
93 | * | |
94 | * @param event_class Event class. | |
95 | * @param name Name of the attribute (will be copied). | |
96 | * @param value Value of the attribute. | |
97 | * | |
98 | * Returns 0 on success, a negative value on error. | |
99 | */ | |
100 | BT_HIDDEN | |
101 | int bt_ctf_event_class_set_attribute( | |
102 | struct bt_ctf_event_class *event_class, const char *name, | |
103 | struct bt_value *value); | |
104 | ||
105 | /* | |
106 | * bt_ctf_event_class_get_attribute_count: get the number of attributes | |
107 | * in this event class. | |
108 | * | |
109 | * Get the event class' attribute count. | |
110 | * | |
111 | * @param event_class Event class. | |
112 | * | |
113 | * Returns the attribute count, a negative value on error. | |
114 | */ | |
115 | BT_HIDDEN | |
116 | int bt_ctf_event_class_get_attribute_count( | |
117 | struct bt_ctf_event_class *event_class); | |
118 | ||
119 | /* | |
120 | * bt_ctf_event_class_get_attribute_name: get attribute name. | |
121 | * | |
122 | * Get an attribute's name. The string's ownership is not | |
123 | * transferred to the caller. The string data is valid as long as | |
124 | * this event class' attributes are not modified. | |
125 | * | |
126 | * @param event_class Event class. | |
127 | * @param index Index of the attribute. | |
128 | * | |
129 | * Returns the attribute's name, NULL on error. | |
130 | */ | |
131 | BT_HIDDEN | |
132 | const char * | |
133 | bt_ctf_event_class_get_attribute_name( | |
134 | struct bt_ctf_event_class *event_class, int index); | |
135 | ||
136 | /* | |
137 | * bt_ctf_event_class_get_attribute_value: get attribute value (an object). | |
138 | * | |
139 | * Get an attribute's value (an object). The returned object's | |
140 | * reference count is incremented. When done with the object, the caller | |
141 | * must call bt_value_put() on it. | |
142 | * | |
143 | * @param event_class Event class. | |
144 | * @param index Index of the attribute. | |
145 | * | |
146 | * Returns the attribute's object value, NULL on error. | |
147 | */ | |
148 | BT_HIDDEN | |
149 | struct bt_value * | |
150 | bt_ctf_event_class_get_attribute_value(struct bt_ctf_event_class *event_class, | |
151 | int index); | |
152 | ||
153 | /* | |
154 | * bt_ctf_event_class_get_attribute_value_by_name: get attribute | |
155 | * value (an object) by name. | |
156 | * | |
157 | * Get an attribute's value (an object) by its name. The returned object's | |
158 | * reference count is incremented. When done with the object, the caller | |
159 | * must call bt_value_put() on it. | |
160 | * | |
161 | * @param event_class Event class. | |
162 | * @param name Attribute's name | |
163 | * | |
164 | * Returns the attribute's object value, NULL on error. | |
165 | */ | |
166 | BT_HIDDEN | |
167 | struct bt_value * | |
168 | bt_ctf_event_class_get_attribute_value_by_name( | |
169 | struct bt_ctf_event_class *event_class, const char *name); | |
170 | ||
171 | /* | |
172 | * bt_ctf_event_class_get_context_type: Get an event class's context type | |
173 | * | |
174 | * @param event_class Event class. | |
175 | * | |
176 | * Returns a field type (a structure) on success, NULL on error. | |
177 | */ | |
178 | BT_HIDDEN | |
179 | struct bt_ctf_field_type *bt_ctf_event_class_get_context_type( | |
180 | struct bt_ctf_event_class *event_class); | |
181 | ||
182 | ||
183 | /* | |
184 | * bt_ctf_event_class_get_field_count: Get an event class' field count. | |
185 | * | |
186 | * @param event_class Event class. | |
187 | * | |
188 | * Returns the event class' field count, a negative value on error. | |
189 | * | |
190 | * Note: Returns an error if the payload is not a structure. | |
191 | */ | |
192 | BT_HIDDEN | |
193 | int bt_ctf_event_class_get_field_count( | |
194 | struct bt_ctf_event_class *event_class); | |
195 | ||
196 | /* | |
197 | * bt_ctf_event_class_get_field: Get event class' field type and name by index. | |
198 | * | |
199 | * @param event_class Event class. | |
200 | * @param field_name Pointer to a const char* where the field's name will | |
201 | * be returned. | |
202 | * @param field_type Pointer to a bt_ctf_field_type* where the field's type will | |
203 | * be returned. | |
204 | * @param index Index of field. | |
205 | * | |
206 | * Returns 0 on success, a negative error on value. | |
207 | * | |
208 | * Note: Returns an error if the payload is not a structure. | |
209 | */ | |
210 | BT_HIDDEN | |
211 | int bt_ctf_event_class_get_field(struct bt_ctf_event_class *event_class, | |
212 | const char **field_name, struct bt_ctf_field_type **field_type, | |
213 | int index); | |
214 | ||
215 | /* | |
216 | * bt_ctf_event_class_get_id: Get an event class' id. | |
217 | * | |
218 | * @param event_class Event class. | |
219 | * | |
220 | * Returns the event class' id, a negative value on error. | |
221 | */ | |
222 | BT_HIDDEN | |
223 | int64_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class); | |
224 | ||
225 | /* | |
226 | * bt_ctf_event_class_get_name: Get an event class' name. | |
227 | * | |
228 | * @param event_class Event class. | |
229 | * | |
230 | * Returns the event class' name, NULL on error. | |
231 | */ | |
232 | BT_HIDDEN | |
233 | const char *bt_ctf_event_class_get_name( | |
234 | struct bt_ctf_event_class *event_class); | |
235 | ||
236 | /* | |
237 | * bt_ctf_event_class_get_stream_class: Get an event class' stream class. | |
238 | * | |
239 | * @param event_class Event class. | |
240 | * | |
241 | * Returns the event class' stream class, NULL on error or if the event class | |
242 | * is not associated with a stream class. | |
243 | */ | |
244 | BT_HIDDEN | |
245 | struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class( | |
246 | struct bt_ctf_event_class *event_class); | |
247 | ||
248 | /* | |
249 | * bt_ctf_event_class_get_payload_type: get an event class' payload. | |
250 | * | |
251 | * Get an event class' payload type. | |
252 | * | |
253 | * @param event_class Event class. | |
254 | * | |
255 | * Returns the event class' payload, NULL on error. | |
256 | */ | |
257 | BT_HIDDEN | |
258 | struct bt_ctf_field_type *bt_ctf_event_class_get_payload_type( | |
259 | struct bt_ctf_event_class *event_class); | |
260 | ||
261 | /* | |
262 | * bt_ctf_event_class_set_id: Set an event class' id. | |
263 | * | |
264 | * Set an event class' id. Must be unique stream-wise. | |
265 | * Note that event classes are already assigned a unique id when added to a | |
266 | * stream class if none was set explicitly. | |
267 | * | |
268 | * @param event_class Event class. | |
269 | * @param id Event class id. | |
270 | * | |
271 | * Returns 0 on success, a negative value on error. | |
272 | */ | |
273 | BT_HIDDEN | |
274 | int bt_ctf_event_class_set_id( | |
275 | struct bt_ctf_event_class *event_class, uint32_t id); | |
276 | ||
277 | /* | |
278 | * bt_ctf_event_class_set_payload_type: set an event class' payload. | |
279 | * | |
280 | * Set an event class' payload type. | |
281 | * | |
282 | * @param event_class Event class. | |
283 | * @param payload The payload's type (must be a structure). | |
284 | * | |
285 | * Returns 0 on success, a negative value on error. | |
286 | */ | |
287 | BT_HIDDEN | |
288 | int bt_ctf_event_class_set_payload_type( | |
289 | struct bt_ctf_event_class *event_class, | |
290 | struct bt_ctf_field_type *payload); | |
291 | ||
292 | /* | |
293 | * bt_ctf_event_class_set_context_type: Set an event class's context type | |
294 | * | |
295 | * @param event_class Event class. | |
296 | * @param context Event context field type (must be a structure). | |
297 | * | |
298 | * Returns 0 on success, a negative value on error. | |
299 | */ | |
300 | BT_HIDDEN | |
301 | int bt_ctf_event_class_set_context_type( | |
302 | struct bt_ctf_event_class *event_class, | |
303 | struct bt_ctf_field_type *context); | |
304 | ||
1c822dfb | 305 | #endif /* BABELTRACE_CTF_IR_EVENT_CLASS_INTERNAL_H */ |