Commit | Line | Data |
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04c0ba87 JG |
1 | /* |
2 | * query.c | |
3 | * | |
4 | * Babeltrace CTF file system Reader Component queries | |
5 | * | |
6 | * Copyright 2017 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
7 | * | |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
14 | * | |
15 | * The above copyright notice and this permission notice shall be included in | |
16 | * all copies or substantial portions of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
21 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
22 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
23 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
24 | * SOFTWARE. | |
25 | */ | |
26 | ||
98903a3e PP |
27 | #define BT_LOG_OUTPUT_LEVEL log_level |
28 | #define BT_LOG_TAG "PLUGIN/SRC.CTF.FS/QUERY" | |
29 | #include "logging/log.h" | |
30 | ||
04c0ba87 JG |
31 | #include "query.h" |
32 | #include <stdbool.h> | |
493917ba SM |
33 | #include <glib.h> |
34 | #include <glib/gstdio.h> | |
35 | #include <fcntl.h> | |
36 | #include <sys/types.h> | |
37 | #include <sys/stat.h> | |
578e048b | 38 | #include "common/assert.h" |
04c0ba87 JG |
39 | #include "metadata.h" |
40 | #include "../common/metadata/decoder.h" | |
578e048b | 41 | #include "common/common.h" |
91d81473 | 42 | #include "common/macros.h" |
3fadfbc0 | 43 | #include <babeltrace2/babeltrace.h> |
97ade20b | 44 | #include "fs.h" |
d23b766e | 45 | #include "logging/comp-logging.h" |
55314f2a | 46 | |
04c0ba87 JG |
47 | #define METADATA_TEXT_SIG "/* CTF 1.8" |
48 | ||
97ade20b JG |
49 | struct range { |
50 | int64_t begin_ns; | |
51 | int64_t end_ns; | |
52 | bool set; | |
53 | }; | |
54 | ||
04c0ba87 | 55 | BT_HIDDEN |
d24d5663 | 56 | bt_component_class_query_method_status metadata_info_query( |
d23b766e | 57 | bt_self_component_class_source *self_comp_class_src, |
98903a3e | 58 | const bt_value *params, bt_logging_level log_level, |
b19ff26f | 59 | const bt_value **user_result) |
04c0ba87 | 60 | { |
d24d5663 PP |
61 | bt_component_class_query_method_status status = |
62 | BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK; | |
d23b766e SM |
63 | bt_self_component_class *self_comp_class = |
64 | bt_self_component_class_source_as_self_component_class(self_comp_class_src); | |
b19ff26f PP |
65 | bt_value *result = NULL; |
66 | const bt_value *path_value = NULL; | |
04c0ba87 | 67 | FILE *metadata_fp = NULL; |
04c0ba87 JG |
68 | int ret; |
69 | int bo; | |
70 | const char *path; | |
71 | bool is_packetized; | |
06be9946 PP |
72 | struct ctf_metadata_decoder *decoder = NULL; |
73 | struct ctf_metadata_decoder_config decoder_cfg = { 0 }; | |
74 | enum ctf_metadata_decoder_status decoder_status; | |
04c0ba87 | 75 | |
05e21286 | 76 | result = bt_value_map_create(); |
da91b29a | 77 | if (!result) { |
d24d5663 | 78 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR; |
04c0ba87 JG |
79 | goto error; |
80 | } | |
81 | ||
f6ccaed9 PP |
82 | BT_ASSERT(params); |
83 | ||
04c0ba87 | 84 | if (!bt_value_is_map(params)) { |
d23b766e SM |
85 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
86 | "Query parameters is not a map value object."); | |
a635e507 | 87 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
04c0ba87 JG |
88 | goto error; |
89 | } | |
90 | ||
05e21286 | 91 | path_value = bt_value_map_borrow_entry_value_const(params, "path"); |
07330b50 | 92 | if (!path_value) { |
d23b766e SM |
93 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
94 | "Mandatory `path` parameter missing"); | |
a635e507 | 95 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
07330b50 FD |
96 | goto error; |
97 | } | |
98 | ||
99 | if (!bt_value_is_string(path_value)) { | |
d23b766e SM |
100 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
101 | "`path` parameter is required to be a string value"); | |
a635e507 | 102 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
07330b50 FD |
103 | goto error; |
104 | } | |
105 | ||
601b0d3c | 106 | path = bt_value_string_get(path_value); |
04c0ba87 | 107 | |
f6ccaed9 | 108 | BT_ASSERT(path); |
04c0ba87 JG |
109 | metadata_fp = ctf_fs_metadata_open_file(path); |
110 | if (!metadata_fp) { | |
d23b766e SM |
111 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
112 | "Cannot open trace metadata: path=\"%s\".", path); | |
04c0ba87 JG |
113 | goto error; |
114 | } | |
115 | ||
06be9946 | 116 | ret = ctf_metadata_decoder_is_packetized(metadata_fp, &is_packetized, |
98903a3e | 117 | &bo, log_level, NULL); |
06be9946 PP |
118 | if (ret) { |
119 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
120 | "Cannot check whether or not the metadata stream is packetized: path=\"%s\".", | |
121 | path); | |
122 | goto error; | |
04c0ba87 JG |
123 | } |
124 | ||
06be9946 PP |
125 | decoder_cfg.log_level = log_level; |
126 | decoder_cfg.keep_plain_text = true; | |
127 | decoder = ctf_metadata_decoder_create(&decoder_cfg); | |
128 | if (!decoder) { | |
129 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
130 | "Cannot create metadata decoder: path=\"%s\".", path); | |
04c0ba87 JG |
131 | goto error; |
132 | } | |
133 | ||
06be9946 PP |
134 | rewind(metadata_fp); |
135 | decoder_status = ctf_metadata_decoder_append_content(decoder, | |
136 | metadata_fp); | |
137 | if (decoder_status) { | |
138 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
139 | "Cannot update metadata decoder's content: path=\"%s\".", | |
140 | path); | |
141 | goto error; | |
04c0ba87 JG |
142 | } |
143 | ||
05e21286 | 144 | ret = bt_value_map_insert_string_entry(result, "text", |
06be9946 | 145 | ctf_metadata_decoder_get_text(decoder)); |
04c0ba87 | 146 | if (ret) { |
d23b766e SM |
147 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
148 | "Cannot insert metadata text into query result."); | |
04c0ba87 JG |
149 | goto error; |
150 | } | |
151 | ||
05e21286 | 152 | ret = bt_value_map_insert_bool_entry(result, "is-packetized", |
04c0ba87 JG |
153 | is_packetized); |
154 | if (ret) { | |
d23b766e SM |
155 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
156 | "Cannot insert \"is-packetized\" attribute into query result."); | |
04c0ba87 JG |
157 | goto error; |
158 | } | |
159 | ||
160 | goto end; | |
161 | ||
162 | error: | |
c5b9b441 | 163 | BT_VALUE_PUT_REF_AND_RESET(result); |
d94d92ac | 164 | result = NULL; |
c7eee084 | 165 | |
d94d92ac | 166 | if (status >= 0) { |
d24d5663 | 167 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
c7eee084 | 168 | } |
04c0ba87 JG |
169 | |
170 | end: | |
06be9946 | 171 | ctf_metadata_decoder_destroy(decoder); |
04c0ba87 JG |
172 | |
173 | if (metadata_fp) { | |
174 | fclose(metadata_fp); | |
175 | } | |
c7eee084 | 176 | |
05e21286 | 177 | *user_result = result; |
d94d92ac | 178 | return status; |
97ade20b | 179 | } |
9ec238a8 | 180 | |
97ade20b | 181 | static |
b19ff26f | 182 | int add_range(bt_value *info, struct range *range, |
97ade20b JG |
183 | const char *range_name) |
184 | { | |
185 | int ret = 0; | |
d24d5663 | 186 | bt_value_map_insert_entry_status status; |
760b266c | 187 | bt_value *range_map; |
97ade20b JG |
188 | |
189 | if (!range->set) { | |
190 | /* Not an error. */ | |
191 | goto end; | |
192 | } | |
193 | ||
760b266c SM |
194 | status = bt_value_map_insert_empty_map_entry(info, range_name, |
195 | &range_map); | |
196 | if (status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
97ade20b JG |
197 | ret = -1; |
198 | goto end; | |
199 | } | |
200 | ||
fdd3a2da | 201 | status = bt_value_map_insert_signed_integer_entry(range_map, "begin", |
97ade20b | 202 | range->begin_ns); |
d24d5663 | 203 | if (status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
97ade20b JG |
204 | ret = -1; |
205 | goto end; | |
206 | } | |
207 | ||
fdd3a2da | 208 | status = bt_value_map_insert_signed_integer_entry(range_map, "end", |
97ade20b | 209 | range->end_ns); |
d24d5663 | 210 | if (status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { |
97ade20b JG |
211 | ret = -1; |
212 | goto end; | |
213 | } | |
214 | ||
97ade20b | 215 | end: |
97ade20b JG |
216 | return ret; |
217 | } | |
218 | ||
97ade20b JG |
219 | static |
220 | int populate_stream_info(struct ctf_fs_ds_file_group *group, | |
b19ff26f | 221 | bt_value *group_info, struct range *stream_range) |
97ade20b JG |
222 | { |
223 | int ret = 0; | |
d24d5663 | 224 | bt_value_map_insert_entry_status insert_status; |
b1c001b6 | 225 | struct ctf_fs_ds_index_entry *first_ds_index_entry, *last_ds_index_entry; |
a38d7650 | 226 | gchar *port_name = NULL; |
97ade20b | 227 | |
b1c001b6 | 228 | /* |
7ed5243a FD |
229 | * Since each `struct ctf_fs_ds_file_group` has a sorted array of |
230 | * `struct ctf_fs_ds_index_entry`, we can compute the stream range from | |
231 | * the timestamp_begin of the first index entry and the timestamp_end | |
232 | * of the last index entry. | |
b1c001b6 | 233 | */ |
7ed5243a FD |
234 | BT_ASSERT(group->index); |
235 | BT_ASSERT(group->index->entries); | |
236 | BT_ASSERT(group->index->entries->len > 0); | |
b1c001b6 | 237 | |
7ed5243a FD |
238 | /* First entry. */ |
239 | first_ds_index_entry = (struct ctf_fs_ds_index_entry *) g_ptr_array_index( | |
240 | group->index->entries, 0); | |
b1c001b6 | 241 | |
7ed5243a FD |
242 | /* Last entry. */ |
243 | last_ds_index_entry = (struct ctf_fs_ds_index_entry *) g_ptr_array_index( | |
244 | group->index->entries, group->index->entries->len - 1); | |
b1c001b6 FD |
245 | |
246 | stream_range->begin_ns = first_ds_index_entry->timestamp_begin_ns; | |
247 | stream_range->end_ns = last_ds_index_entry->timestamp_end_ns; | |
b1c001b6 | 248 | |
1d4ac4b6 FD |
249 | /* |
250 | * If any of the begin and end timestamps is not set it means that | |
251 | * packets don't include `timestamp_begin` _and_ `timestamp_end` fields | |
252 | * in their packet context so we can't set the range. | |
253 | */ | |
254 | stream_range->set = stream_range->begin_ns != UINT64_C(-1) && | |
255 | stream_range->end_ns != UINT64_C(-1); | |
256 | ||
257 | ret = add_range(group_info, stream_range, "range-ns"); | |
258 | if (ret) { | |
259 | goto end; | |
97ade20b JG |
260 | } |
261 | ||
a38d7650 SM |
262 | port_name = ctf_fs_make_port_name(group); |
263 | if (!port_name) { | |
264 | ret = -1; | |
265 | goto end; | |
266 | } | |
267 | ||
d24d5663 PP |
268 | insert_status = bt_value_map_insert_string_entry(group_info, |
269 | "port-name", port_name); | |
270 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
a38d7650 SM |
271 | ret = -1; |
272 | goto end; | |
273 | } | |
274 | ||
97ade20b | 275 | end: |
19bbdc9b | 276 | g_free(port_name); |
97ade20b JG |
277 | return ret; |
278 | } | |
279 | ||
280 | static | |
f280892e | 281 | int populate_trace_info(const struct ctf_fs_trace *trace, bt_value *trace_info) |
97ade20b JG |
282 | { |
283 | int ret = 0; | |
284 | size_t group_idx; | |
d24d5663 PP |
285 | bt_value_map_insert_entry_status insert_status; |
286 | bt_value_array_append_element_status append_status; | |
f280892e | 287 | bt_value *file_groups = NULL; |
97ade20b | 288 | |
f280892e SM |
289 | BT_ASSERT(trace->ds_file_groups); |
290 | /* Add trace range info only if it contains streams. */ | |
291 | if (trace->ds_file_groups->len == 0) { | |
292 | ret = -1; | |
293 | goto end; | |
294 | } | |
295 | ||
760b266c SM |
296 | insert_status = bt_value_map_insert_empty_array_entry(trace_info, |
297 | "streams", &file_groups); | |
298 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
299 | ret = -1; | |
97ade20b JG |
300 | goto end; |
301 | } | |
302 | ||
97ade20b JG |
303 | /* Find range of all stream groups, and of the trace. */ |
304 | for (group_idx = 0; group_idx < trace->ds_file_groups->len; | |
305 | group_idx++) { | |
b19ff26f | 306 | bt_value *group_info; |
97ade20b JG |
307 | struct range group_range = { .set = false }; |
308 | struct ctf_fs_ds_file_group *group = g_ptr_array_index( | |
309 | trace->ds_file_groups, group_idx); | |
310 | ||
760b266c SM |
311 | append_status = bt_value_array_append_empty_map_element( |
312 | file_groups, &group_info); | |
313 | if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) { | |
97ade20b JG |
314 | ret = -1; |
315 | goto end; | |
316 | } | |
317 | ||
318 | ret = populate_stream_info(group, group_info, &group_range); | |
319 | if (ret) { | |
7233204d FD |
320 | goto end; |
321 | } | |
97ade20b JG |
322 | } |
323 | ||
97ade20b | 324 | end: |
97ade20b JG |
325 | return ret; |
326 | } | |
327 | ||
328 | BT_HIDDEN | |
d24d5663 | 329 | bt_component_class_query_method_status trace_info_query( |
d23b766e | 330 | bt_self_component_class_source *self_comp_class_src, |
98903a3e | 331 | const bt_value *params, bt_logging_level log_level, |
b19ff26f | 332 | const bt_value **user_result) |
97ade20b | 333 | { |
f280892e | 334 | struct ctf_fs_component *ctf_fs = NULL; |
d24d5663 PP |
335 | bt_component_class_query_method_status status = |
336 | BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK; | |
d23b766e SM |
337 | bt_self_component_class *self_comp_class = |
338 | bt_self_component_class_source_as_self_component_class( | |
339 | self_comp_class_src); | |
b19ff26f | 340 | bt_value *result = NULL; |
73760435 | 341 | const bt_value *inputs_value = NULL; |
97ade20b | 342 | int ret = 0; |
a0cd55ad SM |
343 | bt_value *trace_info = NULL; |
344 | bt_value_array_append_element_status append_status; | |
97ade20b | 345 | |
f6ccaed9 PP |
346 | BT_ASSERT(params); |
347 | ||
97ade20b | 348 | if (!bt_value_is_map(params)) { |
d23b766e SM |
349 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, |
350 | "Query parameters is not a map value object."); | |
a635e507 | 351 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
97ade20b JG |
352 | goto error; |
353 | } | |
354 | ||
4c65a157 | 355 | ctf_fs = ctf_fs_component_create(log_level, NULL); |
d907165c | 356 | if (!ctf_fs) { |
97ade20b JG |
357 | goto error; |
358 | } | |
97ade20b | 359 | |
d23b766e SM |
360 | if (!read_src_fs_parameters(params, &inputs_value, ctf_fs, NULL, |
361 | self_comp_class)) { | |
a635e507 | 362 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
97ade20b JG |
363 | goto error; |
364 | } | |
365 | ||
a0cd55ad | 366 | if (ctf_fs_component_create_ctf_fs_trace(ctf_fs, inputs_value, NULL, |
d23b766e | 367 | self_comp_class)) { |
97ade20b JG |
368 | goto error; |
369 | } | |
370 | ||
05e21286 | 371 | result = bt_value_array_create(); |
da91b29a | 372 | if (!result) { |
d24d5663 | 373 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR; |
97ade20b JG |
374 | goto error; |
375 | } | |
376 | ||
a0cd55ad SM |
377 | append_status = bt_value_array_append_empty_map_element(result, |
378 | &trace_info); | |
379 | if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) { | |
380 | BT_COMP_CLASS_LOGE_APPEND_CAUSE(self_comp_class, | |
381 | "Failed to create trace info map."); | |
382 | goto error; | |
383 | } | |
97ade20b | 384 | |
a0cd55ad SM |
385 | ret = populate_trace_info(ctf_fs->trace, trace_info); |
386 | if (ret) { | |
387 | goto error; | |
97ade20b JG |
388 | } |
389 | ||
390 | goto end; | |
391 | ||
392 | error: | |
c5b9b441 | 393 | BT_VALUE_PUT_REF_AND_RESET(result); |
c7eee084 | 394 | |
d94d92ac | 395 | if (status >= 0) { |
d24d5663 | 396 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; |
c7eee084 PP |
397 | } |
398 | ||
97ade20b | 399 | end: |
f280892e SM |
400 | if (ctf_fs) { |
401 | ctf_fs_destroy(ctf_fs); | |
402 | ctf_fs = NULL; | |
97ade20b | 403 | } |
d94d92ac | 404 | |
05e21286 | 405 | *user_result = result; |
d94d92ac | 406 | return status; |
04c0ba87 | 407 | } |
73760435 SM |
408 | |
409 | BT_HIDDEN | |
410 | bt_component_class_query_method_status support_info_query( | |
411 | bt_self_component_class_source *comp_class, | |
412 | const bt_value *params, bt_logging_level log_level, | |
413 | const bt_value **user_result) | |
414 | { | |
415 | const bt_value *input_type_value; | |
416 | const char *input_type; | |
417 | bt_component_class_query_method_status status; | |
493917ba | 418 | bt_value_map_insert_entry_status insert_entry_status; |
73760435 SM |
419 | double weight = 0; |
420 | gchar *metadata_path = NULL; | |
421 | bt_value *result = NULL; | |
493917ba SM |
422 | struct ctf_metadata_decoder *metadata_decoder = NULL; |
423 | FILE *metadata_file = NULL; | |
424 | char uuid_str[BT_UUID_STR_LEN + 1]; | |
425 | bool has_uuid = false; | |
426 | const bt_value *input_value; | |
427 | const char *input; | |
73760435 SM |
428 | |
429 | input_type_value = bt_value_map_borrow_entry_value_const(params, "type"); | |
430 | BT_ASSERT(input_type_value); | |
431 | BT_ASSERT(bt_value_get_type(input_type_value) == BT_VALUE_TYPE_STRING); | |
432 | input_type = bt_value_string_get(input_type_value); | |
433 | ||
493917ba SM |
434 | if (strcmp(input_type, "directory") != 0) { |
435 | goto create_result; | |
436 | } | |
437 | ||
438 | input_value = bt_value_map_borrow_entry_value_const(params, "input"); | |
439 | BT_ASSERT(input_value); | |
440 | BT_ASSERT(bt_value_get_type(input_value) == BT_VALUE_TYPE_STRING); | |
441 | input = bt_value_string_get(input_value); | |
442 | ||
443 | metadata_path = g_build_filename(input, CTF_FS_METADATA_FILENAME, NULL); | |
444 | if (!metadata_path) { | |
73760435 SM |
445 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR; |
446 | goto end; | |
447 | } | |
448 | ||
493917ba SM |
449 | metadata_file = g_fopen(metadata_path, "r"); |
450 | if (metadata_file) { | |
451 | struct ctf_metadata_decoder_config metadata_decoder_config = { 0 }; | |
452 | enum ctf_metadata_decoder_status decoder_status; | |
453 | bt_uuid_t uuid; | |
73760435 | 454 | |
493917ba | 455 | metadata_decoder_config.log_level = log_level; |
73760435 | 456 | |
493917ba SM |
457 | metadata_decoder = ctf_metadata_decoder_create( |
458 | &metadata_decoder_config); | |
459 | if (!metadata_decoder) { | |
460 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
461 | goto end; | |
462 | } | |
463 | ||
464 | decoder_status = ctf_metadata_decoder_append_content( | |
465 | metadata_decoder, metadata_file); | |
466 | if (decoder_status != CTF_METADATA_DECODER_STATUS_OK) { | |
467 | BT_LOGW("cannot append metadata content: metadata-decoder-status=%d", | |
468 | decoder_status); | |
469 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_ERROR; | |
73760435 SM |
470 | goto end; |
471 | } | |
472 | ||
473 | /* | |
493917ba SM |
474 | * We were able to parse the metadata file, so we are |
475 | * confident it's a CTF trace. | |
73760435 | 476 | */ |
493917ba SM |
477 | weight = 0.75; |
478 | ||
479 | /* If the trace has a UUID, return the stringified UUID as the group. */ | |
480 | if (ctf_metadata_decoder_get_trace_class_uuid(metadata_decoder, uuid) == 0) { | |
481 | bt_uuid_to_str(uuid, uuid_str); | |
482 | has_uuid = true; | |
73760435 SM |
483 | } |
484 | } | |
485 | ||
493917ba SM |
486 | create_result: |
487 | result = bt_value_map_create(); | |
488 | if (!result) { | |
73760435 SM |
489 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_MEMORY_ERROR; |
490 | goto end; | |
491 | } | |
492 | ||
493917ba SM |
493 | insert_entry_status = bt_value_map_insert_real_entry(result, "weight", weight); |
494 | if (insert_entry_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
495 | status = (int) insert_entry_status; | |
73760435 SM |
496 | goto end; |
497 | } | |
498 | ||
493917ba SM |
499 | /* We are not supposed to have weight == 0 and a UUID. */ |
500 | BT_ASSERT(weight > 0 || !has_uuid); | |
501 | ||
502 | if (weight > 0 && has_uuid) { | |
503 | insert_entry_status = bt_value_map_insert_string_entry(result, "group", uuid_str); | |
504 | if (insert_entry_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
505 | status = (int) insert_entry_status; | |
506 | goto end; | |
507 | } | |
508 | } | |
509 | ||
73760435 SM |
510 | *user_result = result; |
511 | result = NULL; | |
512 | status = BT_COMPONENT_CLASS_QUERY_METHOD_STATUS_OK; | |
513 | ||
514 | end: | |
515 | g_free(metadata_path); | |
516 | bt_value_put_ref(result); | |
493917ba | 517 | ctf_metadata_decoder_destroy(metadata_decoder); |
73760435 SM |
518 | |
519 | return status; | |
520 | } |