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272df73e | 1 | /* |
272df73e PP |
2 | * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
3 | * | |
4 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
22 | * SOFTWARE. | |
23 | */ | |
24 | ||
f8b979f9 PP |
25 | #define BT_LOG_TAG "EVENT-CLASS" |
26 | #include <babeltrace/lib-logging-internal.h> | |
27 | ||
8deee039 | 28 | #include <babeltrace/assert-pre-internal.h> |
108b91d0 PP |
29 | #include <babeltrace/trace-ir/clock-value-internal.h> |
30 | #include <babeltrace/trace-ir/fields-internal.h> | |
939190b3 PP |
31 | #include <babeltrace/trace-ir/field-classes.h> |
32 | #include <babeltrace/trace-ir/field-classes-internal.h> | |
9e550e5f | 33 | #include <babeltrace/trace-ir/private-event-class.h> |
108b91d0 PP |
34 | #include <babeltrace/trace-ir/event-class.h> |
35 | #include <babeltrace/trace-ir/event-class-internal.h> | |
36 | #include <babeltrace/trace-ir/event-internal.h> | |
9e550e5f | 37 | #include <babeltrace/trace-ir/private-stream-class.h> |
108b91d0 PP |
38 | #include <babeltrace/trace-ir/stream-class.h> |
39 | #include <babeltrace/trace-ir/stream-class-internal.h> | |
40 | #include <babeltrace/trace-ir/trace-internal.h> | |
41 | #include <babeltrace/trace-ir/utils-internal.h> | |
42 | #include <babeltrace/trace-ir/resolve-field-path-internal.h> | |
8138bfe1 | 43 | #include <babeltrace/object.h> |
108b91d0 | 44 | #include <babeltrace/trace-ir/attributes-internal.h> |
3d9990ac PP |
45 | #include <babeltrace/compiler-internal.h> |
46 | #include <babeltrace/endian-internal.h> | |
c55a9f58 | 47 | #include <babeltrace/types.h> |
f8b979f9 | 48 | #include <babeltrace/values-internal.h> |
8b45963b | 49 | #include <babeltrace/assert-internal.h> |
dc3fffef | 50 | #include <inttypes.h> |
0fbb9a9f | 51 | #include <stdlib.h> |
272df73e | 52 | |
7b33a0e0 | 53 | #define BT_ASSERT_PRE_EVENT_CLASS_HOT(_ec) \ |
9e550e5f PP |
54 | BT_ASSERT_PRE_HOT(((struct bt_event_class *) (_ec)), \ |
55 | "Event class", ": %!+E", (_ec)) | |
7b33a0e0 PP |
56 | |
57 | static | |
58 | void destroy_event_class(struct bt_object *obj) | |
272df73e | 59 | { |
7b33a0e0 | 60 | struct bt_event_class *event_class = (void *) obj; |
272df73e | 61 | |
7b33a0e0 | 62 | BT_LIB_LOGD("Destroying event class: %!+E", event_class); |
f8b979f9 | 63 | |
7b33a0e0 PP |
64 | if (event_class->name.str) { |
65 | g_string_free(event_class->name.str, TRUE); | |
9cf5d083 PP |
66 | } |
67 | ||
7b33a0e0 PP |
68 | if (event_class->emf_uri.str) { |
69 | g_string_free(event_class->emf_uri.str, TRUE); | |
272df73e PP |
70 | } |
71 | ||
939190b3 | 72 | BT_LOGD_STR("Putting context field classe."); |
8138bfe1 | 73 | bt_object_put_ref(event_class->specific_context_fc); |
939190b3 | 74 | BT_LOGD_STR("Putting payload field classe."); |
8138bfe1 | 75 | bt_object_put_ref(event_class->payload_fc); |
a6918753 | 76 | bt_object_pool_finalize(&event_class->event_pool); |
8deee039 | 77 | g_free(obj); |
272df73e PP |
78 | } |
79 | ||
a6918753 PP |
80 | static |
81 | void free_event(struct bt_event *event, | |
82 | struct bt_event_class *event_class) | |
83 | { | |
84 | bt_event_destroy(event); | |
85 | } | |
86 | ||
7b33a0e0 PP |
87 | BT_ASSERT_PRE_FUNC |
88 | static | |
89 | bool event_class_id_is_unique(struct bt_stream_class *stream_class, uint64_t id) | |
272df73e | 90 | { |
7b33a0e0 PP |
91 | uint64_t i; |
92 | bool is_unique = true; | |
272df73e | 93 | |
7b33a0e0 PP |
94 | for (i = 0; i < stream_class->event_classes->len; i++) { |
95 | struct bt_event_class *ec = | |
96 | stream_class->event_classes->pdata[i]; | |
97 | ||
98 | if (ec->id == id) { | |
99 | is_unique = false; | |
100 | goto end; | |
101 | } | |
9cf5d083 | 102 | } |
272df73e | 103 | |
7b33a0e0 PP |
104 | end: |
105 | return is_unique; | |
106 | } | |
107 | ||
108 | static | |
109 | struct bt_event_class *create_event_class_with_id( | |
110 | struct bt_stream_class *stream_class, uint64_t id) | |
111 | { | |
112 | int ret; | |
113 | struct bt_event_class *event_class; | |
114 | ||
115 | BT_ASSERT(stream_class); | |
116 | BT_ASSERT_PRE(event_class_id_is_unique(stream_class, id), | |
117 | "Duplicate event class ID: %![sc-]+S, id=%" PRIu64, | |
118 | stream_class, id); | |
119 | BT_LIB_LOGD("Creating event class object: %![sc-]+S, id=%" PRIu64, | |
120 | stream_class, id); | |
8deee039 | 121 | event_class = g_new0(struct bt_event_class, 1); |
272df73e | 122 | if (!event_class) { |
8deee039 PP |
123 | BT_LOGE_STR("Failed to allocate one event class."); |
124 | goto error; | |
272df73e PP |
125 | } |
126 | ||
7b33a0e0 PP |
127 | bt_object_init_shared_with_parent(&event_class->base, |
128 | destroy_event_class); | |
129 | event_class->id = id; | |
130 | bt_property_uint_init(&event_class->log_level, | |
131 | BT_PROPERTY_AVAILABILITY_NOT_AVAILABLE, 0); | |
132 | event_class->name.str = g_string_new(NULL); | |
133 | if (!event_class->name.str) { | |
134 | BT_LOGE_STR("Failed to allocate a GString."); | |
135 | ret = -1; | |
136 | goto end; | |
137 | } | |
138 | ||
139 | event_class->emf_uri.str = g_string_new(NULL); | |
140 | if (!event_class->emf_uri.str) { | |
141 | BT_LOGE_STR("Failed to allocate a GString."); | |
142 | ret = -1; | |
143 | goto end; | |
272df73e PP |
144 | } |
145 | ||
a6918753 PP |
146 | ret = bt_object_pool_initialize(&event_class->event_pool, |
147 | (bt_object_pool_new_object_func) bt_event_new, | |
148 | (bt_object_pool_destroy_object_func) free_event, | |
149 | event_class); | |
150 | if (ret) { | |
151 | BT_LOGE("Failed to initialize event pool: ret=%d", | |
152 | ret); | |
153 | goto error; | |
154 | } | |
155 | ||
7b33a0e0 PP |
156 | bt_object_set_parent(&event_class->base, &stream_class->base); |
157 | g_ptr_array_add(stream_class->event_classes, event_class); | |
158 | bt_stream_class_freeze(stream_class); | |
159 | BT_LIB_LOGD("Created event class object: %!+E", event_class); | |
8deee039 | 160 | goto end; |
272df73e | 161 | |
8deee039 | 162 | error: |
8138bfe1 | 163 | BT_OBJECT_PUT_REF_AND_RESET(event_class); |
272df73e PP |
164 | |
165 | end: | |
8deee039 | 166 | return event_class; |
272df73e PP |
167 | } |
168 | ||
9e550e5f PP |
169 | struct bt_private_event_class *bt_private_event_class_create( |
170 | struct bt_private_stream_class *priv_stream_class) | |
7b33a0e0 | 171 | { |
9e550e5f PP |
172 | struct bt_stream_class *stream_class = (void *) priv_stream_class; |
173 | ||
7b33a0e0 PP |
174 | BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class"); |
175 | BT_ASSERT_PRE(stream_class->assigns_automatic_event_class_id, | |
176 | "Stream class does not automatically assigns event class IDs: " | |
177 | "%![sc-]+S", stream_class); | |
9e550e5f | 178 | return (void *) create_event_class_with_id((void *) stream_class, |
7b33a0e0 PP |
179 | (uint64_t) stream_class->event_classes->len); |
180 | } | |
181 | ||
9e550e5f PP |
182 | struct bt_private_event_class *bt_private_event_class_create_with_id( |
183 | struct bt_private_stream_class *priv_stream_class, uint64_t id) | |
7b33a0e0 | 184 | { |
9e550e5f PP |
185 | struct bt_stream_class *stream_class = (void *) priv_stream_class; |
186 | ||
7b33a0e0 PP |
187 | BT_ASSERT_PRE(!stream_class->assigns_automatic_event_class_id, |
188 | "Stream class automatically assigns event class IDs: " | |
189 | "%![sc-]+S", stream_class); | |
9e550e5f | 190 | return (void *) create_event_class_with_id((void *) stream_class, id); |
7b33a0e0 PP |
191 | } |
192 | ||
8deee039 | 193 | const char *bt_event_class_get_name(struct bt_event_class *event_class) |
272df73e | 194 | { |
18acc6f8 | 195 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
7b33a0e0 | 196 | return event_class->name.value; |
272df73e PP |
197 | } |
198 | ||
9e550e5f | 199 | int bt_private_event_class_set_name(struct bt_private_event_class *priv_event_class, |
7b33a0e0 | 200 | const char *name) |
272df73e | 201 | { |
9e550e5f PP |
202 | struct bt_event_class *event_class = (void *) priv_event_class; |
203 | ||
18acc6f8 | 204 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
7b33a0e0 PP |
205 | BT_ASSERT_PRE_NON_NULL(name, "Name"); |
206 | BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class); | |
207 | g_string_assign(event_class->name.str, name); | |
208 | event_class->name.value = event_class->name.str->str; | |
209 | BT_LIB_LOGV("Set event class's name: %!+E", event_class); | |
210 | return 0; | |
272df73e PP |
211 | } |
212 | ||
7b33a0e0 | 213 | uint64_t bt_event_class_get_id(struct bt_event_class *event_class) |
272df73e | 214 | { |
7b33a0e0 PP |
215 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
216 | return event_class->id; | |
272df73e PP |
217 | } |
218 | ||
7b33a0e0 PP |
219 | enum bt_property_availability bt_event_class_get_log_level( |
220 | struct bt_event_class *event_class, | |
221 | enum bt_event_class_log_level *log_level) | |
272df73e | 222 | { |
18acc6f8 | 223 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
7b33a0e0 PP |
224 | BT_ASSERT_PRE_NON_NULL(log_level, "Log level (output)"); |
225 | *log_level = (enum bt_event_class_log_level) | |
226 | event_class->log_level.value; | |
227 | return event_class->log_level.base.avail; | |
272df73e PP |
228 | } |
229 | ||
c8bbf821 | 230 | void bt_private_event_class_set_log_level( |
9e550e5f | 231 | struct bt_private_event_class *priv_event_class, |
8deee039 | 232 | enum bt_event_class_log_level log_level) |
272df73e | 233 | { |
9e550e5f PP |
234 | struct bt_event_class *event_class = (void *) priv_event_class; |
235 | ||
7b33a0e0 PP |
236 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
237 | BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class); | |
238 | bt_property_uint_set(&event_class->log_level, | |
239 | (uint64_t) log_level); | |
240 | BT_LIB_LOGV("Set event class's log level: %!+E", event_class); | |
272df73e PP |
241 | } |
242 | ||
8deee039 | 243 | const char *bt_event_class_get_emf_uri(struct bt_event_class *event_class) |
272df73e | 244 | { |
18acc6f8 | 245 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
7b33a0e0 | 246 | return event_class->emf_uri.value; |
272df73e PP |
247 | } |
248 | ||
9e550e5f PP |
249 | int bt_private_event_class_set_emf_uri( |
250 | struct bt_private_event_class *priv_event_class, | |
8deee039 | 251 | const char *emf_uri) |
272df73e | 252 | { |
9e550e5f PP |
253 | struct bt_event_class *event_class = (void *) priv_event_class; |
254 | ||
7b33a0e0 PP |
255 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
256 | BT_ASSERT_PRE_NON_NULL(emf_uri, "EMF URI"); | |
257 | BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class); | |
258 | g_string_assign(event_class->emf_uri.str, emf_uri); | |
259 | event_class->emf_uri.value = event_class->emf_uri.str->str; | |
260 | BT_LIB_LOGV("Set event class's EMF URI: %!+E", event_class); | |
261 | return 0; | |
272df73e PP |
262 | } |
263 | ||
5fe68922 | 264 | struct bt_stream_class *bt_event_class_borrow_stream_class( |
839d52a5 | 265 | struct bt_event_class *event_class) |
272df73e | 266 | { |
44ea72c5 | 267 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
7b33a0e0 | 268 | return bt_event_class_borrow_stream_class_inline(event_class); |
272df73e PP |
269 | } |
270 | ||
9e550e5f | 271 | struct bt_private_stream_class * |
96854e6a | 272 | bt_private_event_class_borrow_stream_class( |
9e550e5f PP |
273 | struct bt_private_event_class *event_class) |
274 | { | |
275 | return (void *) bt_event_class_borrow_stream_class( | |
276 | (void *) event_class); | |
277 | } | |
278 | ||
939190b3 | 279 | struct bt_field_class *bt_event_class_borrow_specific_context_field_class( |
8deee039 | 280 | struct bt_event_class *event_class) |
272df73e | 281 | { |
18acc6f8 | 282 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
939190b3 | 283 | return event_class->specific_context_fc; |
272df73e PP |
284 | } |
285 | ||
9e550e5f | 286 | struct bt_private_field_class * |
96854e6a | 287 | bt_private_event_class_borrow_specific_context_field_class( |
9e550e5f PP |
288 | struct bt_private_event_class *event_class) |
289 | { | |
290 | return (void *) bt_event_class_borrow_specific_context_field_class( | |
291 | (void *) event_class); | |
292 | } | |
293 | ||
96854e6a | 294 | int bt_private_event_class_set_specific_context_field_class( |
9e550e5f PP |
295 | struct bt_private_event_class *priv_event_class, |
296 | struct bt_private_field_class *priv_field_class) | |
272df73e | 297 | { |
7b33a0e0 | 298 | int ret; |
9e550e5f PP |
299 | struct bt_event_class *event_class = (void *) priv_event_class; |
300 | struct bt_field_class *field_class = (void *) priv_field_class; | |
7b33a0e0 PP |
301 | struct bt_stream_class *stream_class; |
302 | struct bt_trace *trace; | |
303 | struct bt_resolve_field_path_context resolve_ctx = { | |
304 | .packet_header = NULL, | |
305 | .packet_context = NULL, | |
306 | .event_header = NULL, | |
307 | .event_common_context = NULL, | |
939190b3 | 308 | .event_specific_context = field_class, |
7b33a0e0 PP |
309 | .event_payload = NULL, |
310 | }; | |
18acc6f8 | 311 | |
7b33a0e0 | 312 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
939190b3 | 313 | BT_ASSERT_PRE_NON_NULL(field_class, "Field class"); |
7b33a0e0 | 314 | BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class); |
af0c18e3 PP |
315 | BT_ASSERT_PRE(bt_field_class_get_type(field_class) == |
316 | BT_FIELD_CLASS_TYPE_STRUCTURE, | |
939190b3 PP |
317 | "Specific context field classe is not a structure field classe: " |
318 | "%!+F", field_class); | |
7b33a0e0 PP |
319 | stream_class = bt_event_class_borrow_stream_class_inline( |
320 | event_class); | |
321 | trace = bt_stream_class_borrow_trace_inline(stream_class); | |
939190b3 PP |
322 | resolve_ctx.packet_header = trace->packet_header_fc; |
323 | resolve_ctx.packet_context = stream_class->packet_context_fc; | |
324 | resolve_ctx.event_header = stream_class->event_header_fc; | |
7b33a0e0 | 325 | resolve_ctx.event_common_context = |
939190b3 | 326 | stream_class->event_common_context_fc; |
7b33a0e0 | 327 | |
939190b3 | 328 | ret = bt_resolve_field_paths(field_class, &resolve_ctx); |
7b33a0e0 | 329 | if (ret) { |
18acc6f8 PP |
330 | goto end; |
331 | } | |
332 | ||
939190b3 | 333 | bt_field_class_make_part_of_trace(field_class); |
8138bfe1 PP |
334 | bt_object_put_ref(event_class->specific_context_fc); |
335 | event_class->specific_context_fc = bt_object_get_ref(field_class); | |
939190b3 PP |
336 | bt_field_class_freeze(field_class); |
337 | BT_LIB_LOGV("Set event class's specific context field classe: %!+E", | |
7b33a0e0 | 338 | event_class); |
18acc6f8 | 339 | |
18acc6f8 PP |
340 | end: |
341 | return ret; | |
272df73e PP |
342 | } |
343 | ||
939190b3 | 344 | struct bt_field_class *bt_event_class_borrow_payload_field_class( |
8deee039 | 345 | struct bt_event_class *event_class) |
272df73e | 346 | { |
18acc6f8 | 347 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
939190b3 | 348 | return event_class->payload_fc; |
272df73e PP |
349 | } |
350 | ||
96854e6a | 351 | struct bt_private_field_class *bt_private_event_class_borrow_payload_field_class( |
9e550e5f PP |
352 | struct bt_private_event_class *event_class) |
353 | { | |
354 | return (void *) bt_event_class_borrow_payload_field_class( | |
355 | (void *) event_class); | |
356 | } | |
357 | ||
96854e6a | 358 | int bt_private_event_class_set_payload_field_class( |
9e550e5f PP |
359 | struct bt_private_event_class *priv_event_class, |
360 | struct bt_private_field_class *priv_field_class) | |
272df73e | 361 | { |
7b33a0e0 | 362 | int ret; |
9e550e5f PP |
363 | struct bt_event_class *event_class = (void *) priv_event_class; |
364 | struct bt_field_class *field_class = (void *) priv_field_class; | |
7b33a0e0 PP |
365 | struct bt_stream_class *stream_class; |
366 | struct bt_trace *trace; | |
367 | struct bt_resolve_field_path_context resolve_ctx = { | |
368 | .packet_header = NULL, | |
369 | .packet_context = NULL, | |
370 | .event_header = NULL, | |
371 | .event_common_context = NULL, | |
372 | .event_specific_context = NULL, | |
939190b3 | 373 | .event_payload = field_class, |
7b33a0e0 | 374 | }; |
18acc6f8 | 375 | |
7b33a0e0 | 376 | BT_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
939190b3 | 377 | BT_ASSERT_PRE_NON_NULL(field_class, "Field class"); |
7b33a0e0 | 378 | BT_ASSERT_PRE_EVENT_CLASS_HOT(event_class); |
af0c18e3 PP |
379 | BT_ASSERT_PRE(bt_field_class_get_type(field_class) == |
380 | BT_FIELD_CLASS_TYPE_STRUCTURE, | |
939190b3 PP |
381 | "Payload field classe is not a structure field classe: %!+F", |
382 | field_class); | |
7b33a0e0 PP |
383 | stream_class = bt_event_class_borrow_stream_class_inline( |
384 | event_class); | |
385 | trace = bt_stream_class_borrow_trace_inline(stream_class); | |
939190b3 PP |
386 | resolve_ctx.packet_header = trace->packet_header_fc; |
387 | resolve_ctx.packet_context = stream_class->packet_context_fc; | |
388 | resolve_ctx.event_header = stream_class->event_header_fc; | |
7b33a0e0 | 389 | resolve_ctx.event_common_context = |
939190b3 PP |
390 | stream_class->event_common_context_fc; |
391 | resolve_ctx.event_specific_context = event_class->specific_context_fc; | |
7b33a0e0 | 392 | |
939190b3 | 393 | ret = bt_resolve_field_paths(field_class, &resolve_ctx); |
7b33a0e0 | 394 | if (ret) { |
18acc6f8 PP |
395 | goto end; |
396 | } | |
397 | ||
939190b3 | 398 | bt_field_class_make_part_of_trace(field_class); |
8138bfe1 PP |
399 | bt_object_put_ref(event_class->payload_fc); |
400 | event_class->payload_fc = bt_object_get_ref(field_class); | |
939190b3 PP |
401 | bt_field_class_freeze(field_class); |
402 | BT_LIB_LOGV("Set event class's payload field classe: %!+E", event_class); | |
18acc6f8 PP |
403 | |
404 | end: | |
405 | return ret; | |
272df73e PP |
406 | } |
407 | ||
408 | BT_HIDDEN | |
7b33a0e0 | 409 | void _bt_event_class_freeze(struct bt_event_class *event_class) |
8c4a29ba | 410 | { |
939190b3 | 411 | /* The field classes are already frozen */ |
8b45963b | 412 | BT_ASSERT(event_class); |
7b33a0e0 PP |
413 | BT_LIB_LOGD("Freezing event class: %!+E", event_class); |
414 | event_class->frozen = true; | |
8c4a29ba | 415 | } |