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73760435 SM |
1 | /* |
2 | * Copyright (c) 2019 EfficiOS Inc. and Linux Foundation | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
5 | * of this software and associated documentation files (the "Software"), to deal | |
6 | * in the Software without restriction, including without limitation the rights | |
7 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
8 | * copies of the Software, and to permit persons to whom the Software is | |
9 | * furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
17 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
18 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
19 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
20 | * SOFTWARE. | |
21 | */ | |
22 | ||
23 | #define BT_LOG_TAG "CLI-CFG-SRC-AUTO-DISC" | |
24 | #include "logging.h" | |
25 | ||
26 | #include "babeltrace2-cfg-src-auto-disc.h" | |
27 | #include "babeltrace2-plugins.h" | |
28 | #include "common/common.h" | |
29 | ||
30 | /* Finalize and free a `struct auto_source_discovery_result`. */ | |
31 | ||
32 | static | |
33 | void auto_source_discovery_result_destroy(struct auto_source_discovery_result *res) | |
34 | { | |
35 | if (res) { | |
36 | g_free(res->group); | |
37 | bt_value_put_ref(res->inputs); | |
38 | g_free(res); | |
39 | } | |
40 | } | |
41 | ||
42 | /* Allocate and initialize a `struct auto_source_discovery_result`. */ | |
43 | ||
44 | static | |
45 | struct auto_source_discovery_result *auto_source_discovery_result_create( | |
46 | const char *plugin_name, const char *source_cc_name, | |
47 | const char *group) | |
48 | { | |
49 | struct auto_source_discovery_result *res; | |
50 | ||
51 | res = g_new0(struct auto_source_discovery_result, 1); | |
52 | if (!res) { | |
53 | BT_CLI_LOGE_APPEND_CAUSE( | |
54 | "Failed to allocate a auto_source_discovery_result structure."); | |
55 | goto error; | |
56 | } | |
57 | ||
58 | res->plugin_name = plugin_name; | |
59 | res->source_cc_name = source_cc_name; | |
60 | res->group = g_strdup(group); | |
61 | if (group && !res->group) { | |
62 | BT_CLI_LOGE_APPEND_CAUSE("Failed to allocate a string."); | |
63 | goto error; | |
64 | } | |
65 | ||
66 | res->inputs = bt_value_array_create(); | |
67 | if (!res->inputs) { | |
68 | BT_CLI_LOGE_APPEND_CAUSE("Failed to allocate an array value."); | |
69 | goto error; | |
70 | } | |
71 | ||
72 | goto end; | |
73 | error: | |
74 | auto_source_discovery_result_destroy(res); | |
75 | ||
76 | end: | |
77 | return res; | |
78 | } | |
79 | ||
80 | /* Finalize a `struct auto_source_discovery`. */ | |
81 | ||
82 | void auto_source_discovery_fini(struct auto_source_discovery *auto_disc) | |
83 | { | |
84 | if (auto_disc->results) { | |
85 | g_ptr_array_free(auto_disc->results, TRUE); | |
86 | } | |
87 | } | |
88 | ||
89 | /* Initialize an already allocated `struct auto_source_discovery`. */ | |
90 | ||
91 | int auto_source_discovery_init(struct auto_source_discovery *auto_disc) | |
92 | { | |
93 | int status; | |
94 | ||
95 | auto_disc->results = g_ptr_array_new_with_free_func( | |
96 | (GDestroyNotify) auto_source_discovery_result_destroy); | |
97 | ||
98 | if (!auto_disc->results) { | |
99 | goto error; | |
100 | } | |
101 | ||
102 | status = 0; | |
103 | goto end; | |
104 | ||
105 | error: | |
106 | auto_source_discovery_fini(auto_disc); | |
107 | status = -1; | |
108 | ||
109 | end: | |
110 | ||
111 | return status; | |
112 | } | |
113 | ||
114 | /* | |
115 | * Assign `input` to source component class `source_cc_name` of plugin | |
116 | * `plugin_name`, in the group with key `group`. | |
117 | */ | |
118 | ||
119 | static | |
120 | int auto_source_discovery_add(struct auto_source_discovery *auto_disc, | |
121 | const char *plugin_name, | |
122 | const char *source_cc_name, | |
123 | const char *group, | |
124 | const char *input) | |
125 | { | |
126 | int status; | |
127 | bt_value_array_append_element_status append_status; | |
128 | guint len; | |
129 | guint i; | |
130 | struct auto_source_discovery_result *res = NULL; | |
131 | ||
132 | len = auto_disc->results->len; | |
133 | i = len; | |
134 | ||
135 | if (group) { | |
136 | for (i = 0; i < len; i++) { | |
137 | res = g_ptr_array_index(auto_disc->results, i); | |
138 | ||
139 | if (strcmp(res->plugin_name, plugin_name) != 0) { | |
140 | continue; | |
141 | } | |
142 | ||
143 | if (strcmp(res->source_cc_name, source_cc_name) != 0) { | |
144 | continue; | |
145 | } | |
146 | ||
147 | if (g_strcmp0(res->group, group) != 0) { | |
148 | continue; | |
149 | } | |
150 | ||
151 | break; | |
152 | } | |
153 | } | |
154 | ||
155 | if (i == len) { | |
156 | /* Add a new result entry. */ | |
157 | res = auto_source_discovery_result_create(plugin_name, | |
158 | source_cc_name, group); | |
159 | if (!res) { | |
160 | goto error; | |
161 | } | |
162 | ||
163 | g_ptr_array_add(auto_disc->results, res); | |
164 | } | |
165 | ||
166 | append_status = bt_value_array_append_string_element(res->inputs, input); | |
167 | if (append_status != BT_VALUE_ARRAY_APPEND_ELEMENT_STATUS_OK) { | |
168 | BT_CLI_LOGE_APPEND_CAUSE("Failed to append a string value."); | |
169 | goto error; | |
170 | } | |
171 | ||
172 | ||
173 | status = 0; | |
174 | goto end; | |
175 | ||
176 | error: | |
177 | status = -1; | |
178 | ||
179 | end: | |
180 | return status; | |
181 | } | |
182 | ||
183 | static | |
184 | int convert_weight_value(const bt_value *weight_value, double *weight, | |
185 | const char *plugin_name, const char *source_cc_name, | |
186 | const char *input, const char *input_type) | |
187 | { | |
188 | enum bt_value_type weight_value_type; | |
189 | int status; | |
190 | ||
191 | weight_value_type = bt_value_get_type(weight_value); | |
192 | ||
193 | if (weight_value_type == BT_VALUE_TYPE_REAL) { | |
194 | *weight = bt_value_real_get(weight_value); | |
195 | } else if (weight_value_type == BT_VALUE_TYPE_SIGNED_INTEGER) { | |
196 | /* Accept signed integer as a convenience for "return 0" or "return 1" in Python. */ | |
197 | *weight = bt_value_integer_signed_get(weight_value); | |
198 | } else { | |
199 | BT_LOGW("support-info query: unexpected type for weight: " | |
200 | "component-class-name=source.%s.%s, input=%s, input-type=%s, " | |
201 | "expected-entry-type=%s, actual-entry-type=%s", | |
202 | plugin_name, source_cc_name, input, input_type, | |
203 | bt_common_value_type_string(BT_VALUE_TYPE_REAL), | |
204 | bt_common_value_type_string(bt_value_get_type(weight_value))); | |
205 | goto error; | |
206 | } | |
207 | ||
208 | if (*weight < 0.0 || *weight > 1.0) { | |
209 | BT_LOGW("support-info query: weight value is out of range [0.0, 1.0]: " | |
210 | "component-class-name=source.%s.%s, input=%s, input-type=%s, " | |
211 | "weight=%f", | |
212 | plugin_name, source_cc_name, input, input_type, *weight); | |
213 | goto error; | |
214 | } | |
215 | ||
216 | status = 0; | |
217 | goto end; | |
218 | ||
219 | error: | |
220 | status = -1; | |
221 | ||
222 | end: | |
223 | return status; | |
224 | } | |
225 | ||
226 | /* | |
227 | * Query all known source components to see if any of them can handle `input` | |
228 | * as the given `type`(arbitrary string, directory or file). | |
229 | * | |
230 | * If `plugin_restrict` is non-NULL, only query source component classes provided | |
231 | * by the plugin with that name. | |
232 | * | |
233 | * If `component_class_restrict` is non-NULL, only query source component classes | |
234 | * with that name. | |
235 | * | |
236 | * Return: | |
237 | * | |
238 | * - > 0 on success, if no source component class has reported that it handles `input` | |
239 | * - 0 on success, if a source component class has reported that it handles `input` | |
240 | * - < 0 on failure (e.g. memory error) | |
241 | */ | |
242 | static | |
243 | int support_info_query_all_sources(const char *input, | |
244 | const char *input_type, | |
245 | bt_query_executor *query_executor, size_t plugin_count, | |
246 | const char *plugin_restrict, | |
247 | const char *component_class_restrict, | |
248 | enum bt_logging_level log_level, | |
249 | struct auto_source_discovery *auto_disc) | |
250 | { | |
251 | bt_value_map_insert_entry_status insert_status; | |
252 | bt_value *query_params = NULL; | |
253 | int status; | |
254 | size_t i_plugins; | |
255 | const struct bt_value *query_result = NULL; | |
256 | struct { | |
257 | const bt_component_class_source *source; | |
258 | const bt_plugin *plugin; | |
259 | const bt_value *group; | |
260 | double weigth; | |
261 | } winner = { NULL, NULL, NULL, 0 }; | |
262 | ||
263 | query_params = bt_value_map_create(); | |
264 | if (!query_params) { | |
265 | BT_CLI_LOGE_APPEND_CAUSE("Failed to allocate a map value."); | |
266 | goto error; | |
267 | } | |
268 | ||
269 | insert_status = bt_value_map_insert_string_entry(query_params, "input", input); | |
270 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
271 | BT_CLI_LOGE_APPEND_CAUSE("Failed to insert a map entry."); | |
272 | goto error; | |
273 | } | |
274 | ||
275 | insert_status = bt_value_map_insert_string_entry(query_params, "type", input_type); | |
276 | if (insert_status != BT_VALUE_MAP_INSERT_ENTRY_STATUS_OK) { | |
277 | BT_CLI_LOGE_APPEND_CAUSE("Failed to insert a map entry."); | |
278 | goto error; | |
279 | } | |
280 | ||
281 | for (i_plugins = 0; i_plugins < plugin_count; i_plugins++) { | |
282 | const bt_plugin *plugin; | |
283 | const char *plugin_name; | |
284 | uint64_t source_count; | |
285 | uint64_t i_sources; | |
286 | ||
287 | plugin = borrow_loaded_plugin(i_plugins); | |
288 | plugin_name = bt_plugin_get_name(plugin); | |
289 | ||
290 | /* | |
291 | * If the search is restricted to a specific plugin, only consider | |
292 | * the plugin with that name. | |
293 | */ | |
294 | if (plugin_restrict && strcmp(plugin_restrict, plugin_name) != 0) { | |
295 | continue; | |
296 | } | |
297 | ||
298 | source_count = bt_plugin_get_source_component_class_count(plugin); | |
299 | ||
300 | for (i_sources = 0; i_sources < source_count; i_sources++) { | |
301 | const bt_component_class_source *source_cc; | |
302 | const bt_component_class *cc; | |
303 | const char *source_cc_name; | |
304 | bt_query_executor_query_status query_status; | |
305 | ||
306 | source_cc = bt_plugin_borrow_source_component_class_by_index_const(plugin, i_sources); | |
307 | cc = bt_component_class_source_as_component_class_const(source_cc); | |
308 | source_cc_name = bt_component_class_get_name(cc); | |
309 | ||
310 | /* | |
311 | * If the search is restricted to a specific component class, only consider the | |
312 | * component classes with that name. | |
313 | */ | |
314 | if (component_class_restrict && strcmp(component_class_restrict, source_cc_name) != 0) { | |
315 | continue; | |
316 | } | |
317 | ||
318 | BT_LOGD("support-info query: before: component-class-name=source.%s.%s, input=%s, " | |
319 | "type=%s", plugin_name, source_cc_name, input, input_type); | |
320 | ||
321 | BT_VALUE_PUT_REF_AND_RESET(query_result); | |
322 | query_status = bt_query_executor_query(query_executor, cc, "support-info", | |
323 | query_params, log_level, &query_result); | |
324 | ||
325 | if (query_status == BT_QUERY_EXECUTOR_QUERY_STATUS_OK) { | |
326 | double weight; | |
327 | const bt_value *group_value = NULL; | |
328 | enum bt_value_type query_result_type; | |
329 | ||
330 | BT_ASSERT(query_result); | |
331 | ||
332 | query_result_type = bt_value_get_type(query_result); | |
333 | ||
334 | if (query_result_type == BT_VALUE_TYPE_REAL || query_result_type == BT_VALUE_TYPE_SIGNED_INTEGER) { | |
335 | if (convert_weight_value(query_result, &weight, plugin_name, source_cc_name, input, input_type) != 0) { | |
336 | /* convert_weight_value has already warned. */ | |
337 | continue; | |
338 | } | |
339 | } else if (query_result_type == BT_VALUE_TYPE_MAP) { | |
340 | const bt_value *weight_value; | |
341 | ||
342 | if (!bt_value_map_has_entry(query_result, "weight")) { | |
343 | BT_LOGW("support-info query: result is missing `weight` entry: " | |
344 | "component-class-name=source.%s.%s, input=%s, input-type=%s", | |
345 | bt_plugin_get_name(plugin), | |
346 | bt_component_class_get_name(cc), input, | |
347 | input_type); | |
348 | continue; | |
349 | } | |
350 | ||
351 | weight_value = bt_value_map_borrow_entry_value_const(query_result, "weight"); | |
352 | BT_ASSERT(weight_value); | |
353 | ||
354 | if (convert_weight_value(weight_value, &weight, plugin_name, source_cc_name, input, input_type) != 0) { | |
355 | /* convert_weight_value has already warned. */ | |
356 | continue; | |
357 | } | |
358 | ||
359 | if (bt_value_map_has_entry(query_result, "group")) { | |
360 | enum bt_value_type group_value_type; | |
361 | ||
362 | group_value = bt_value_map_borrow_entry_value_const(query_result, "group"); | |
363 | BT_ASSERT(group_value); | |
364 | ||
365 | group_value_type = bt_value_get_type(group_value); | |
366 | ||
367 | if (group_value_type == BT_VALUE_TYPE_NULL) { | |
368 | /* Do as if no value was passed. */ | |
369 | group_value = NULL; | |
370 | } else if (bt_value_get_type(group_value) != BT_VALUE_TYPE_STRING) { | |
371 | BT_LOGW("support-info query: unexpected type for entry `group`: " | |
372 | "component-class-name=source.%s.%s, input=%s, input-type=%s, " | |
373 | "expected-entry-type=%s,%s, actual-entry-type=%s", | |
374 | bt_plugin_get_name(plugin), | |
375 | bt_component_class_get_name(cc), input, | |
376 | input_type, | |
377 | bt_common_value_type_string(BT_VALUE_TYPE_NULL), | |
378 | bt_common_value_type_string(BT_VALUE_TYPE_STRING), | |
379 | bt_common_value_type_string(bt_value_get_type(group_value))); | |
380 | continue; | |
381 | } | |
382 | } | |
383 | } else { | |
384 | BT_LOGW("support-info query: unexpected result type: " | |
385 | "component-class-name=source.%s.%s, input=%s, input-type=%s, " | |
386 | "expected-types=%s,%s,%s, actual-type=%s", | |
387 | bt_plugin_get_name(plugin), | |
388 | bt_component_class_get_name(cc), input, | |
389 | input_type, | |
390 | bt_common_value_type_string(BT_VALUE_TYPE_REAL), | |
391 | bt_common_value_type_string(BT_VALUE_TYPE_MAP), | |
392 | bt_common_value_type_string(BT_VALUE_TYPE_SIGNED_INTEGER), | |
393 | bt_common_value_type_string(bt_value_get_type(query_result))); | |
394 | continue; | |
395 | } | |
396 | ||
397 | BT_LOGD("support-info query: success: component-class-name=source.%s.%s, input=%s, " | |
398 | "type=%s, weight=%f\n", | |
399 | bt_plugin_get_name(plugin), bt_component_class_get_name(cc), input, | |
400 | input_type, weight); | |
401 | ||
402 | if (weight > winner.weigth) { | |
403 | winner.source = source_cc; | |
404 | winner.plugin = plugin; | |
405 | ||
406 | bt_value_put_ref(winner.group); | |
407 | winner.group = group_value; | |
408 | bt_value_get_ref(winner.group); | |
409 | ||
410 | winner.weigth = weight; | |
411 | } | |
412 | } else if (query_status == BT_QUERY_EXECUTOR_QUERY_STATUS_ERROR) { | |
413 | BT_CLI_LOGE_APPEND_CAUSE("support-info query failed."); | |
414 | goto error; | |
415 | } else if (query_status == BT_QUERY_EXECUTOR_QUERY_STATUS_MEMORY_ERROR) { | |
416 | BT_CLI_LOGE_APPEND_CAUSE("Memory error."); | |
417 | goto error; | |
418 | } else { | |
419 | BT_LOGD("support-info query: failure: component-class-name=source.%s.%s, input=%s, " | |
420 | "type=%s, status=%s\n", | |
421 | bt_plugin_get_name(plugin), bt_component_class_get_name(cc), input, | |
422 | input_type, | |
423 | bt_common_func_status_string(query_status)); | |
424 | } | |
425 | } | |
426 | } | |
427 | ||
428 | if (winner.source) { | |
429 | const char *source_name; | |
430 | const char *plugin_name; | |
431 | const char *group; | |
432 | ||
433 | source_name = bt_component_class_get_name( | |
434 | bt_component_class_source_as_component_class_const(winner.source)); | |
435 | plugin_name = bt_plugin_get_name(winner.plugin); | |
436 | group = winner.group ? bt_value_string_get(winner.group) : NULL; | |
437 | ||
438 | BT_LOGI("Input %s is awarded to component class source.%s.%s with weight %f", | |
439 | input, plugin_name, source_name, winner.weigth); | |
440 | ||
441 | status = auto_source_discovery_add(auto_disc, plugin_name, source_name, group, input); | |
442 | if (status != 0) { | |
443 | goto error; | |
444 | } | |
445 | } else { | |
446 | BT_LOGI("Input %s (%s) was not recognized by any source component class.", | |
447 | input, input_type); | |
448 | status = 1; | |
449 | } | |
450 | ||
451 | goto end; | |
452 | ||
453 | error: | |
454 | status = -1; | |
455 | ||
456 | end: | |
457 | bt_value_put_ref(query_result); | |
458 | bt_value_put_ref(query_params); | |
459 | bt_value_put_ref(winner.group); | |
460 | ||
461 | return status; | |
462 | } | |
463 | ||
464 | /* | |
465 | * Look for a source component class that recognizes `input` as an arbitrary | |
466 | * string. | |
467 | * | |
468 | * Same return value semantic as `support_info_query_all_sources`. | |
469 | */ | |
470 | ||
471 | static | |
472 | int auto_discover_source_for_input_as_string(const char *input, | |
473 | bt_query_executor *query_executor, size_t plugin_count, | |
474 | const char *plugin_restrict, | |
475 | const char *component_class_restrict, | |
476 | enum bt_logging_level log_level, | |
477 | struct auto_source_discovery *auto_disc) | |
478 | { | |
479 | return support_info_query_all_sources(input, "string", | |
480 | query_executor, plugin_count, plugin_restrict, | |
481 | component_class_restrict, log_level, auto_disc); | |
482 | } | |
483 | ||
484 | static | |
485 | int auto_discover_source_for_input_as_dir_or_file_rec(GString *input, | |
486 | bt_query_executor *query_executor, size_t plugin_count, | |
487 | const char *plugin_restrict, | |
488 | const char *component_class_restrict, | |
489 | enum bt_logging_level log_level, | |
490 | struct auto_source_discovery *auto_disc) | |
491 | { | |
492 | int status; | |
493 | GError *error = NULL; | |
494 | ||
495 | if (g_file_test(input->str, G_FILE_TEST_IS_REGULAR)) { | |
496 | /* It's a file. */ | |
497 | status = support_info_query_all_sources(input->str, | |
498 | "file", query_executor, plugin_count, | |
499 | plugin_restrict, component_class_restrict, log_level, auto_disc); | |
500 | } else if (g_file_test(input->str, G_FILE_TEST_IS_DIR)) { | |
501 | GDir *dir; | |
502 | const gchar *dirent; | |
503 | gsize saved_input_len; | |
504 | int dir_status = 1; | |
505 | ||
506 | /* It's a directory. */ | |
507 | status = support_info_query_all_sources(input->str, | |
508 | "directory", query_executor, plugin_count, | |
509 | plugin_restrict, component_class_restrict, log_level, | |
510 | auto_disc); | |
511 | ||
512 | if (status < 0) { | |
513 | /* Fatal error. */ | |
514 | goto error; | |
515 | } else if (status == 0) { | |
516 | /* | |
517 | * A component class claimed this input as a directory, | |
518 | * don't recurse. | |
519 | */ | |
520 | goto end; | |
521 | } | |
522 | ||
523 | dir = g_dir_open(input->str, 0, &error); | |
524 | if (!dir) { | |
525 | const char *fmt = "Failed to open directory %s: %s"; | |
526 | BT_LOGW(fmt, input->str, error->message); | |
527 | ||
d847ef86 | 528 | if (error->code == G_FILE_ERROR_ACCES) { |
73760435 SM |
529 | /* This is not a fatal error, we just skip it. */ |
530 | status = 1; | |
531 | goto end; | |
532 | } else { | |
533 | BT_CLI_LOGE_APPEND_CAUSE(fmt, input->str, | |
534 | error->message); | |
535 | goto error; | |
536 | } | |
537 | } | |
538 | ||
539 | saved_input_len = input->len; | |
540 | ||
541 | do { | |
542 | errno = 0; | |
543 | dirent = g_dir_read_name(dir); | |
544 | if (dirent) { | |
545 | g_string_append_c_inline(input, G_DIR_SEPARATOR); | |
546 | g_string_append(input, dirent); | |
547 | ||
548 | status = auto_discover_source_for_input_as_dir_or_file_rec( | |
549 | input, query_executor, plugin_count, | |
550 | plugin_restrict, component_class_restrict, | |
551 | log_level, auto_disc); | |
552 | ||
553 | g_string_truncate(input, saved_input_len); | |
554 | ||
555 | if (status < 0) { | |
556 | /* Fatal error. */ | |
557 | goto error; | |
558 | } else if (status == 0) { | |
559 | dir_status = 0; | |
560 | } | |
561 | } else if (errno != 0) { | |
562 | BT_LOGW_ERRNO("Failed to read directory entry", ": dir=%s", input->str); | |
563 | goto error; | |
564 | } | |
5084732e | 565 | } while (dirent); |
73760435 SM |
566 | |
567 | status = dir_status; | |
568 | ||
569 | g_dir_close(dir); | |
570 | } else { | |
571 | BT_LOGD("Skipping %s, not a file or directory", input->str); | |
572 | status = 1; | |
573 | } | |
574 | ||
575 | goto end; | |
576 | ||
577 | error: | |
578 | status = -1; | |
579 | ||
580 | end: | |
581 | ||
582 | if (error) { | |
583 | g_error_free(error); | |
584 | } | |
585 | ||
586 | return status; | |
587 | } | |
588 | ||
589 | /* | |
590 | * Look for a source component class that recognizes `input` as a directory or | |
591 | * file. If `input` is a directory and is not directly recognized, recurse and | |
592 | * apply the same logic to children nodes. | |
593 | * | |
594 | * Same return value semantic as `support_info_query_all_sources`. | |
595 | */ | |
596 | ||
597 | static | |
598 | int auto_discover_source_for_input_as_dir_or_file(const char *input, | |
599 | bt_query_executor *query_executor, size_t plugin_count, | |
600 | const char *plugin_restrict, | |
601 | const char *component_class_restrict, | |
602 | enum bt_logging_level log_level, | |
603 | struct auto_source_discovery *auto_disc) | |
604 | { | |
605 | GString *mutable_input; | |
606 | int status; | |
607 | ||
608 | mutable_input = g_string_new(input); | |
609 | if (!mutable_input) { | |
610 | status = -1; | |
611 | goto end; | |
612 | } | |
613 | ||
614 | status = auto_discover_source_for_input_as_dir_or_file_rec( | |
615 | mutable_input, query_executor, plugin_count, plugin_restrict, | |
616 | component_class_restrict, log_level, auto_disc); | |
617 | ||
618 | g_string_free(mutable_input, TRUE); | |
619 | end: | |
620 | return status; | |
621 | } | |
622 | ||
623 | int auto_discover_source_components( | |
624 | const bt_value *plugin_paths, | |
625 | const bt_value *inputs, | |
626 | const char *plugin_restrict, | |
627 | const char *component_class_restrict, | |
628 | enum bt_logging_level log_level, | |
629 | struct auto_source_discovery *auto_disc) | |
630 | { | |
631 | uint64_t i_inputs, input_count; | |
632 | int status; | |
633 | size_t plugin_count; | |
634 | bt_query_executor *query_executor = NULL; | |
635 | ||
636 | input_count = bt_value_array_get_size(inputs); | |
637 | ||
638 | status = require_loaded_plugins(plugin_paths); | |
639 | if (status != 0) { | |
640 | goto end; | |
641 | } | |
642 | ||
643 | plugin_count = get_loaded_plugins_count(); | |
644 | ||
645 | query_executor = bt_query_executor_create(); | |
646 | if (!query_executor) { | |
647 | BT_CLI_LOGE_APPEND_CAUSE("Failed to allocate a query executor."); | |
648 | goto end; | |
649 | } | |
650 | ||
651 | for (i_inputs = 0; i_inputs < input_count; i_inputs++) { | |
652 | const bt_value *input_value; | |
653 | const char *input; | |
654 | ||
655 | input_value = bt_value_array_borrow_element_by_index_const(inputs, i_inputs); | |
656 | input = bt_value_string_get(input_value); | |
657 | status = auto_discover_source_for_input_as_string(input, query_executor, | |
658 | plugin_count, plugin_restrict, component_class_restrict, | |
659 | log_level, auto_disc); | |
660 | if (status < 0) { | |
661 | /* Fatal error. */ | |
662 | goto end; | |
663 | } else if (status == 0) { | |
664 | /* A component class has claimed this input as an arbitrary string. */ | |
665 | continue; | |
666 | } | |
667 | ||
668 | status = auto_discover_source_for_input_as_dir_or_file(input, | |
669 | query_executor, plugin_count, plugin_restrict, | |
670 | component_class_restrict, log_level, auto_disc); | |
671 | if (status < 0) { | |
672 | /* Fatal error. */ | |
673 | goto end; | |
674 | } else if (status == 0) { | |
675 | /* | |
676 | * This input (or something under it) was recognized. | |
677 | */ | |
678 | continue; | |
679 | } | |
680 | ||
681 | BT_LOGW("No trace was found based on input `%s`.", input); | |
682 | } | |
683 | ||
684 | status = 0; | |
685 | end: | |
686 | bt_query_executor_put_ref(query_executor); | |
687 | return status; | |
688 | } |