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Remove unused `src/plugins/ctf/common/utils`
[babeltrace.git] / src / cli / babeltrace2.c
1 /*
2 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
3 *
4 * Author: Mathieu Desnoyers <mathieu.desnoyers@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
25 #define BT_LOG_TAG "CLI"
26 #include "logging.h"
27
28 #include <babeltrace2/babeltrace.h>
29 #include "common/common.h"
30 #include <unistd.h>
31 #include <stdlib.h>
32 #include <popt.h>
33 #include <string.h>
34 #include <stdio.h>
35 #include <glib.h>
36 #include <inttypes.h>
37 #include <unistd.h>
38 #include <signal.h>
39 #include "babeltrace2-cfg.h"
40 #include "babeltrace2-cfg-cli-args.h"
41 #include "babeltrace2-cfg-cli-args-default.h"
42
43 #define ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH "BABELTRACE_CLI_WARN_COMMAND_NAME_DIRECTORY_CLASH"
44 #define ENV_BABELTRACE_CLI_LOG_LEVEL "BABELTRACE_CLI_LOG_LEVEL"
45 #define NSEC_PER_SEC 1000000000LL
46
47 /*
48 * Known environment variable names for the log levels of the project's
49 * modules.
50 */
51 static const char* log_level_env_var_names[] = {
52 "BABELTRACE_PLUGIN_CTF_METADATA_LOG_LEVEL",
53 "BABELTRACE_PYTHON_BT2_LOG_LEVEL",
54 "BABELTRACE_SINK_CTF_FS_LOG_LEVEL",
55 "BABELTRACE_SINK_TEXT_DETAILS_LOG_LEVEL",
56 "BABELTRACE_SRC_CTF_FS_LOG_LEVEL",
57 "BABELTRACE_SRC_CTF_LTTNG_LIVE_LOG_LEVEL",
58 NULL,
59 };
60
61 /* Application's processing graph (weak) */
62 static bt_graph *the_graph;
63 static bt_query_executor *the_query_executor;
64 static bool canceled = false;
65
66 GPtrArray *loaded_plugins;
67
68 #ifdef __MINGW32__
69
70 #include <windows.h>
71
72 static
73 BOOL WINAPI signal_handler(DWORD signal) {
74 if (the_graph) {
75 bt_graph_cancel(the_graph);
76 }
77
78 canceled = true;
79
80 return TRUE;
81 }
82
83 static
84 void set_signal_handler(void)
85 {
86 if (!SetConsoleCtrlHandler(signal_handler, TRUE)) {
87 BT_LOGE("Failed to set the Ctrl+C handler.");
88 }
89 }
90
91 #else /* __MINGW32__ */
92
93 static
94 void signal_handler(int signum)
95 {
96 if (signum != SIGINT) {
97 return;
98 }
99
100 if (the_graph) {
101 bt_graph_cancel(the_graph);
102 }
103
104 if (the_query_executor) {
105 bt_query_executor_cancel(the_query_executor);
106 }
107
108 canceled = true;
109 }
110
111 static
112 void set_signal_handler(void)
113 {
114 struct sigaction new_action, old_action;
115
116 new_action.sa_handler = signal_handler;
117 sigemptyset(&new_action.sa_mask);
118 new_action.sa_flags = 0;
119 sigaction(SIGINT, NULL, &old_action);
120
121 if (old_action.sa_handler != SIG_IGN) {
122 sigaction(SIGINT, &new_action, NULL);
123 }
124 }
125
126 #endif /* __MINGW32__ */
127
128 static
129 void init_static_data(void)
130 {
131 loaded_plugins = g_ptr_array_new_with_free_func(
132 (GDestroyNotify) bt_object_put_ref);
133 }
134
135 static
136 void fini_static_data(void)
137 {
138 g_ptr_array_free(loaded_plugins, TRUE);
139 }
140
141 static
142 int create_the_query_executor(void)
143 {
144 int ret = 0;
145
146 the_query_executor = bt_query_executor_create();
147 if (!the_query_executor) {
148 BT_LOGE_STR("Cannot create a query executor.");
149 ret = -1;
150 }
151
152 return ret;
153 }
154
155 static
156 void destroy_the_query_executor(void)
157 {
158 BT_QUERY_EXECUTOR_PUT_REF_AND_RESET(the_query_executor);
159 }
160
161 static
162 int query(struct bt_config *cfg, const bt_component_class *comp_cls,
163 const char *obj, const bt_value *params,
164 const bt_value **user_result, const char **fail_reason)
165 {
166 const bt_value *result = NULL;
167 bt_query_executor_status status;
168 *fail_reason = "unknown error";
169 int ret = 0;
170
171 BT_ASSERT(fail_reason);
172 BT_ASSERT(user_result);
173 ret = create_the_query_executor();
174 if (ret) {
175 /* create_the_query_executor() logs errors */
176 goto end;
177 }
178
179 if (canceled) {
180 BT_LOGI("Canceled by user before executing the query: "
181 "comp-cls-addr=%p, comp-cls-name=\"%s\", "
182 "query-obj=\"%s\"", comp_cls,
183 bt_component_class_get_name(comp_cls), obj);
184 *fail_reason = "canceled by user";
185 goto error;
186 }
187
188 while (true) {
189 status = bt_query_executor_query(the_query_executor,
190 comp_cls, obj, params, cfg->log_level, &result);
191 switch (status) {
192 case BT_QUERY_EXECUTOR_STATUS_OK:
193 goto ok;
194 case BT_QUERY_EXECUTOR_STATUS_AGAIN:
195 {
196 const uint64_t sleep_time_us = 100000;
197
198 /* Wait 100 ms and retry */
199 BT_LOGD("Got BT_QUERY_EXECUTOR_STATUS_AGAIN: sleeping: "
200 "time-us=%" PRIu64, sleep_time_us);
201
202 if (usleep(sleep_time_us)) {
203 if (bt_query_executor_is_canceled(the_query_executor)) {
204 BT_LOGI("Query was canceled by user: "
205 "comp-cls-addr=%p, comp-cls-name=\"%s\", "
206 "query-obj=\"%s\"", comp_cls,
207 bt_component_class_get_name(comp_cls),
208 obj);
209 *fail_reason = "canceled by user";
210 goto error;
211 }
212 }
213
214 continue;
215 }
216 case BT_QUERY_EXECUTOR_STATUS_CANCELED:
217 *fail_reason = "canceled by user";
218 goto error;
219 case BT_QUERY_EXECUTOR_STATUS_ERROR:
220 goto error;
221 case BT_QUERY_EXECUTOR_STATUS_INVALID_OBJECT:
222 *fail_reason = "invalid or unknown query object";
223 goto error;
224 case BT_QUERY_EXECUTOR_STATUS_INVALID_PARAMS:
225 *fail_reason = "invalid query parameters";
226 goto error;
227 case BT_QUERY_EXECUTOR_STATUS_UNSUPPORTED:
228 *fail_reason = "unsupported action";
229 goto error;
230 case BT_QUERY_EXECUTOR_STATUS_NOMEM:
231 *fail_reason = "not enough memory";
232 goto error;
233 default:
234 BT_LOGF("Unknown query status: status=%d", status);
235 abort();
236 }
237 }
238
239 ok:
240 *user_result = result;
241 result = NULL;
242 goto end;
243
244 error:
245 ret = -1;
246
247 end:
248 destroy_the_query_executor();
249 bt_value_put_ref(result);
250 return ret;
251 }
252
253 static
254 const bt_plugin *find_plugin(const char *name)
255 {
256 int i;
257 const bt_plugin *plugin = NULL;
258
259 BT_ASSERT(name);
260 BT_LOGI("Finding plugin: name=\"%s\"", name);
261
262 for (i = 0; i < loaded_plugins->len; i++) {
263 plugin = g_ptr_array_index(loaded_plugins, i);
264
265 if (strcmp(name, bt_plugin_get_name(plugin)) == 0) {
266 break;
267 }
268
269 plugin = NULL;
270 }
271
272 if (plugin) {
273 BT_LOGI("Found plugin: name=\"%s\", plugin-addr=%p",
274 name, plugin);
275 } else {
276 BT_LOGI("Cannot find plugin: name=\"%s\"", name);
277 }
278
279 bt_plugin_get_ref(plugin);
280 return plugin;
281 }
282
283 typedef const void *(*plugin_borrow_comp_cls_func_t)(
284 const bt_plugin *, const char *);
285
286 static
287 const void *find_component_class_from_plugin(const char *plugin_name,
288 const char *comp_class_name,
289 plugin_borrow_comp_cls_func_t plugin_borrow_comp_cls_func)
290 {
291 const void *comp_class = NULL;
292 const bt_plugin *plugin;
293
294 BT_LOGI("Finding component class: plugin-name=\"%s\", "
295 "comp-cls-name=\"%s\"", plugin_name, comp_class_name);
296
297 plugin = find_plugin(plugin_name);
298 if (!plugin) {
299 goto end;
300 }
301
302 comp_class = plugin_borrow_comp_cls_func(plugin, comp_class_name);
303 bt_object_get_ref(comp_class);
304 BT_PLUGIN_PUT_REF_AND_RESET(plugin);
305
306 end:
307 if (comp_class) {
308 BT_LOGI("Found component class: plugin-name=\"%s\", "
309 "comp-cls-name=\"%s\"", plugin_name, comp_class_name);
310 } else {
311 BT_LOGI("Cannot find source component class: "
312 "plugin-name=\"%s\", comp-cls-name=\"%s\"",
313 plugin_name, comp_class_name);
314 }
315
316 return comp_class;
317 }
318
319 static
320 const bt_component_class_source *find_source_component_class(
321 const char *plugin_name, const char *comp_class_name)
322 {
323 return (const void *) find_component_class_from_plugin(
324 plugin_name, comp_class_name,
325 (plugin_borrow_comp_cls_func_t)
326 bt_plugin_borrow_source_component_class_by_name_const);
327 }
328
329 static
330 const bt_component_class_filter *find_filter_component_class(
331 const char *plugin_name, const char *comp_class_name)
332 {
333 return (const void *) find_component_class_from_plugin(
334 plugin_name, comp_class_name,
335 (plugin_borrow_comp_cls_func_t)
336 bt_plugin_borrow_filter_component_class_by_name_const);
337 }
338
339 static
340 const bt_component_class_sink *find_sink_component_class(
341 const char *plugin_name, const char *comp_class_name)
342 {
343 return (const void *) find_component_class_from_plugin(plugin_name,
344 comp_class_name,
345 (plugin_borrow_comp_cls_func_t)
346 bt_plugin_borrow_sink_component_class_by_name_const);
347 }
348
349 static
350 const bt_component_class *find_component_class(const char *plugin_name,
351 const char *comp_class_name,
352 bt_component_class_type comp_class_type)
353 {
354 const bt_component_class *comp_cls = NULL;
355
356 switch (comp_class_type) {
357 case BT_COMPONENT_CLASS_TYPE_SOURCE:
358 comp_cls = bt_component_class_source_as_component_class_const(find_source_component_class(plugin_name, comp_class_name));
359 break;
360 case BT_COMPONENT_CLASS_TYPE_FILTER:
361 comp_cls = bt_component_class_filter_as_component_class_const(find_filter_component_class(plugin_name, comp_class_name));
362 break;
363 case BT_COMPONENT_CLASS_TYPE_SINK:
364 comp_cls = bt_component_class_sink_as_component_class_const(find_sink_component_class(plugin_name, comp_class_name));
365 break;
366 default:
367 abort();
368 }
369
370 return comp_cls;
371 }
372
373 static
374 void print_indent(FILE *fp, size_t indent)
375 {
376 size_t i;
377
378 for (i = 0; i < indent; i++) {
379 fprintf(fp, " ");
380 }
381 }
382
383 static
384 const char *component_type_str(bt_component_class_type type)
385 {
386 switch (type) {
387 case BT_COMPONENT_CLASS_TYPE_SOURCE:
388 return "source";
389 case BT_COMPONENT_CLASS_TYPE_SINK:
390 return "sink";
391 case BT_COMPONENT_CLASS_TYPE_FILTER:
392 return "filter";
393 default:
394 return "(unknown)";
395 }
396 }
397
398 static
399 void print_plugin_comp_cls_opt(FILE *fh, const char *plugin_name,
400 const char *comp_cls_name, bt_component_class_type type)
401 {
402 GString *shell_plugin_name = NULL;
403 GString *shell_comp_cls_name = NULL;
404
405 shell_plugin_name = bt_common_shell_quote(plugin_name, false);
406 if (!shell_plugin_name) {
407 goto end;
408 }
409
410 shell_comp_cls_name = bt_common_shell_quote(comp_cls_name, false);
411 if (!shell_comp_cls_name) {
412 goto end;
413 }
414
415 fprintf(fh, "'%s%s%s%s.%s%s%s.%s%s%s'",
416 bt_common_color_bold(),
417 bt_common_color_fg_cyan(),
418 component_type_str(type),
419 bt_common_color_fg_default(),
420 bt_common_color_fg_blue(),
421 shell_plugin_name->str,
422 bt_common_color_fg_default(),
423 bt_common_color_fg_yellow(),
424 shell_comp_cls_name->str,
425 bt_common_color_reset());
426
427 end:
428 if (shell_plugin_name) {
429 g_string_free(shell_plugin_name, TRUE);
430 }
431
432 if (shell_comp_cls_name) {
433 g_string_free(shell_comp_cls_name, TRUE);
434 }
435 }
436
437 static
438 void print_value(FILE *, const bt_value *, size_t);
439
440 static
441 void print_value_rec(FILE *, const bt_value *, size_t);
442
443 struct print_map_value_data {
444 size_t indent;
445 FILE *fp;
446 };
447
448 static
449 bt_bool print_map_value(const char *key, const bt_value *object,
450 void *data)
451 {
452 struct print_map_value_data *print_map_value_data = data;
453
454 print_indent(print_map_value_data->fp, print_map_value_data->indent);
455 fprintf(print_map_value_data->fp, "%s: ", key);
456 BT_ASSERT(object);
457
458 if (bt_value_is_array(object) &&
459 bt_value_array_is_empty(object)) {
460 fprintf(print_map_value_data->fp, "[ ]\n");
461 return true;
462 }
463
464 if (bt_value_is_map(object) &&
465 bt_value_map_is_empty(object)) {
466 fprintf(print_map_value_data->fp, "{ }\n");
467 return true;
468 }
469
470 if (bt_value_is_array(object) ||
471 bt_value_is_map(object)) {
472 fprintf(print_map_value_data->fp, "\n");
473 }
474
475 print_value_rec(print_map_value_data->fp, object,
476 print_map_value_data->indent + 2);
477 return BT_TRUE;
478 }
479
480 static
481 void print_value_rec(FILE *fp, const bt_value *value, size_t indent)
482 {
483 bt_bool bool_val;
484 int64_t int_val;
485 uint64_t uint_val;
486 double dbl_val;
487 const char *str_val;
488 int size;
489 int i;
490
491 if (!value) {
492 return;
493 }
494
495 switch (bt_value_get_type(value)) {
496 case BT_VALUE_TYPE_NULL:
497 fprintf(fp, "%snull%s\n", bt_common_color_bold(),
498 bt_common_color_reset());
499 break;
500 case BT_VALUE_TYPE_BOOL:
501 bool_val = bt_value_bool_get(value);
502 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
503 bt_common_color_fg_cyan(), bool_val ? "yes" : "no",
504 bt_common_color_reset());
505 break;
506 case BT_VALUE_TYPE_UNSIGNED_INTEGER:
507 uint_val = bt_value_unsigned_integer_get(value);
508 fprintf(fp, "%s%s%" PRIu64 "%s\n", bt_common_color_bold(),
509 bt_common_color_fg_red(), uint_val,
510 bt_common_color_reset());
511 break;
512 case BT_VALUE_TYPE_SIGNED_INTEGER:
513 int_val = bt_value_signed_integer_get(value);
514 fprintf(fp, "%s%s%" PRId64 "%s\n", bt_common_color_bold(),
515 bt_common_color_fg_red(), int_val,
516 bt_common_color_reset());
517 break;
518 case BT_VALUE_TYPE_REAL:
519 dbl_val = bt_value_real_get(value);
520 fprintf(fp, "%s%s%lf%s\n", bt_common_color_bold(),
521 bt_common_color_fg_red(), dbl_val,
522 bt_common_color_reset());
523 break;
524 case BT_VALUE_TYPE_STRING:
525 str_val = bt_value_string_get(value);
526 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
527 bt_common_color_fg_green(), str_val,
528 bt_common_color_reset());
529 break;
530 case BT_VALUE_TYPE_ARRAY:
531 size = bt_value_array_get_size(value);
532 if (size < 0) {
533 goto error;
534 }
535
536 if (size == 0) {
537 print_indent(fp, indent);
538 fprintf(fp, "[ ]\n");
539 break;
540 }
541
542 for (i = 0; i < size; i++) {
543 const bt_value *element =
544 bt_value_array_borrow_element_by_index_const(
545 value, i);
546
547 if (!element) {
548 goto error;
549 }
550 print_indent(fp, indent);
551 fprintf(fp, "- ");
552
553 if (bt_value_is_array(element) &&
554 bt_value_array_is_empty(element)) {
555 fprintf(fp, "[ ]\n");
556 continue;
557 }
558
559 if (bt_value_is_map(element) &&
560 bt_value_map_is_empty(element)) {
561 fprintf(fp, "{ }\n");
562 continue;
563 }
564
565 if (bt_value_is_array(element) ||
566 bt_value_is_map(element)) {
567 fprintf(fp, "\n");
568 }
569
570 print_value_rec(fp, element, indent + 2);
571 }
572 break;
573 case BT_VALUE_TYPE_MAP:
574 {
575 struct print_map_value_data data = {
576 .indent = indent,
577 .fp = fp,
578 };
579
580 if (bt_value_map_is_empty(value)) {
581 print_indent(fp, indent);
582 fprintf(fp, "{ }\n");
583 break;
584 }
585
586 bt_value_map_foreach_entry_const(value, print_map_value, &data);
587 break;
588 }
589 default:
590 abort();
591 }
592 return;
593
594 error:
595 BT_LOGE("Error printing value of type %s.",
596 bt_common_value_type_string(bt_value_get_type(value)));
597 }
598
599 static
600 void print_value(FILE *fp, const bt_value *value, size_t indent)
601 {
602 if (!bt_value_is_array(value) && !bt_value_is_map(value)) {
603 print_indent(fp, indent);
604 }
605
606 print_value_rec(fp, value, indent);
607 }
608
609 static
610 void print_bt_config_component(struct bt_config_component *bt_config_component)
611 {
612 fprintf(stderr, " ");
613 print_plugin_comp_cls_opt(stderr, bt_config_component->plugin_name->str,
614 bt_config_component->comp_cls_name->str,
615 bt_config_component->type);
616 fprintf(stderr, ":\n");
617
618 if (bt_config_component->instance_name->len > 0) {
619 fprintf(stderr, " Name: %s\n",
620 bt_config_component->instance_name->str);
621 }
622
623 fprintf(stderr, " Parameters:\n");
624 print_value(stderr, bt_config_component->params, 8);
625 }
626
627 static
628 void print_bt_config_components(GPtrArray *array)
629 {
630 size_t i;
631
632 for (i = 0; i < array->len; i++) {
633 struct bt_config_component *cfg_component =
634 bt_config_get_component(array, i);
635 print_bt_config_component(cfg_component);
636 BT_OBJECT_PUT_REF_AND_RESET(cfg_component);
637 }
638 }
639
640 static
641 void print_plugin_paths(const bt_value *plugin_paths)
642 {
643 fprintf(stderr, " Plugin paths:\n");
644 print_value(stderr, plugin_paths, 4);
645 }
646
647 static
648 void print_cfg_run(struct bt_config *cfg)
649 {
650 size_t i;
651
652 print_plugin_paths(cfg->plugin_paths);
653 fprintf(stderr, " Source component instances:\n");
654 print_bt_config_components(cfg->cmd_data.run.sources);
655
656 if (cfg->cmd_data.run.filters->len > 0) {
657 fprintf(stderr, " Filter component instances:\n");
658 print_bt_config_components(cfg->cmd_data.run.filters);
659 }
660
661 fprintf(stderr, " Sink component instances:\n");
662 print_bt_config_components(cfg->cmd_data.run.sinks);
663 fprintf(stderr, " Connections:\n");
664
665 for (i = 0; i < cfg->cmd_data.run.connections->len; i++) {
666 struct bt_config_connection *cfg_connection =
667 g_ptr_array_index(cfg->cmd_data.run.connections,
668 i);
669
670 fprintf(stderr, " %s%s%s -> %s%s%s\n",
671 cfg_connection->upstream_comp_name->str,
672 cfg_connection->upstream_port_glob->len > 0 ? "." : "",
673 cfg_connection->upstream_port_glob->str,
674 cfg_connection->downstream_comp_name->str,
675 cfg_connection->downstream_port_glob->len > 0 ? "." : "",
676 cfg_connection->downstream_port_glob->str);
677 }
678 }
679
680 static
681 void print_cfg_list_plugins(struct bt_config *cfg)
682 {
683 print_plugin_paths(cfg->plugin_paths);
684 }
685
686 static
687 void print_cfg_help(struct bt_config *cfg)
688 {
689 print_plugin_paths(cfg->plugin_paths);
690 }
691
692 static
693 void print_cfg_print_ctf_metadata(struct bt_config *cfg)
694 {
695 print_plugin_paths(cfg->plugin_paths);
696 fprintf(stderr, " Path: %s\n",
697 cfg->cmd_data.print_ctf_metadata.path->str);
698 }
699
700 static
701 void print_cfg_print_lttng_live_sessions(struct bt_config *cfg)
702 {
703 print_plugin_paths(cfg->plugin_paths);
704 fprintf(stderr, " URL: %s\n",
705 cfg->cmd_data.print_lttng_live_sessions.url->str);
706 }
707
708 static
709 void print_cfg_query(struct bt_config *cfg)
710 {
711 print_plugin_paths(cfg->plugin_paths);
712 fprintf(stderr, " Object: `%s`\n", cfg->cmd_data.query.object->str);
713 fprintf(stderr, " Component class:\n");
714 print_bt_config_component(cfg->cmd_data.query.cfg_component);
715 }
716
717 static
718 void print_cfg(struct bt_config *cfg)
719 {
720 if (!BT_LOG_ON_INFO) {
721 return;
722 }
723
724 BT_LOGI_STR("CLI configuration:");
725 BT_LOGI(" Debug mode: %s\n", cfg->debug ? "yes" : "no");
726 BT_LOGI(" Verbose mode: %s\n", cfg->verbose ? "yes" : "no");
727
728 switch (cfg->command) {
729 case BT_CONFIG_COMMAND_RUN:
730 print_cfg_run(cfg);
731 break;
732 case BT_CONFIG_COMMAND_LIST_PLUGINS:
733 print_cfg_list_plugins(cfg);
734 break;
735 case BT_CONFIG_COMMAND_HELP:
736 print_cfg_help(cfg);
737 break;
738 case BT_CONFIG_COMMAND_QUERY:
739 print_cfg_query(cfg);
740 break;
741 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
742 print_cfg_print_ctf_metadata(cfg);
743 break;
744 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
745 print_cfg_print_lttng_live_sessions(cfg);
746 break;
747 default:
748 abort();
749 }
750 }
751
752 static
753 void add_to_loaded_plugins(const bt_plugin_set *plugin_set)
754 {
755 int64_t i;
756 int64_t count;
757
758 count = bt_plugin_set_get_plugin_count(plugin_set);
759 BT_ASSERT(count >= 0);
760
761 for (i = 0; i < count; i++) {
762 const bt_plugin *plugin =
763 bt_plugin_set_borrow_plugin_by_index_const(plugin_set, i);
764 const bt_plugin *loaded_plugin =
765 find_plugin(bt_plugin_get_name(plugin));
766
767 BT_ASSERT(plugin);
768
769 if (loaded_plugin) {
770 BT_LOGI("Not using plugin: another one already exists with the same name: "
771 "plugin-name=\"%s\", plugin-path=\"%s\", "
772 "existing-plugin-path=\"%s\"",
773 bt_plugin_get_name(plugin),
774 bt_plugin_get_path(plugin),
775 bt_plugin_get_path(loaded_plugin));
776 bt_plugin_put_ref(loaded_plugin);
777 } else {
778 /* Add to global array. */
779 BT_LOGD("Adding plugin to loaded plugins: plugin-path=\"%s\"",
780 bt_plugin_get_name(plugin));
781 bt_plugin_get_ref(plugin);
782 g_ptr_array_add(loaded_plugins, (void *) plugin);
783 }
784 }
785 }
786
787 static
788 int load_dynamic_plugins(const bt_value *plugin_paths)
789 {
790 int nr_paths, i, ret = 0;
791
792 nr_paths = bt_value_array_get_size(plugin_paths);
793 if (nr_paths < 0) {
794 BT_LOGE_STR("Cannot load dynamic plugins: no plugin path.");
795 ret = -1;
796 goto end;
797 }
798
799 BT_LOGI_STR("Loading dynamic plugins.");
800
801 for (i = 0; i < nr_paths; i++) {
802 const bt_value *plugin_path_value = NULL;
803 const char *plugin_path;
804 const bt_plugin_set *plugin_set;
805
806 plugin_path_value =
807 bt_value_array_borrow_element_by_index_const(
808 plugin_paths, i);
809 plugin_path = bt_value_string_get(plugin_path_value);
810
811 /*
812 * Skip this if the directory does not exist because
813 * bt_plugin_find_all_from_dir() expects an existing
814 * directory.
815 */
816 if (!g_file_test(plugin_path, G_FILE_TEST_IS_DIR)) {
817 BT_LOGI("Skipping nonexistent directory path: "
818 "path=\"%s\"", plugin_path);
819 continue;
820 }
821
822 plugin_set = bt_plugin_find_all_from_dir(plugin_path, false);
823 if (!plugin_set) {
824 BT_LOGI("Unable to load dynamic plugins from directory: "
825 "path=\"%s\"", plugin_path);
826 continue;
827 }
828
829 add_to_loaded_plugins(plugin_set);
830 bt_plugin_set_put_ref(plugin_set);
831 }
832 end:
833 return ret;
834 }
835
836 static
837 int load_static_plugins(void)
838 {
839 int ret = 0;
840 const bt_plugin_set *plugin_set;
841
842 BT_LOGI("Loading static plugins.");
843 plugin_set = bt_plugin_find_all_from_static();
844 if (!plugin_set) {
845 BT_LOGE("Unable to load static plugins.");
846 ret = -1;
847 goto end;
848 }
849
850 add_to_loaded_plugins(plugin_set);
851 bt_plugin_set_put_ref(plugin_set);
852 end:
853 return ret;
854 }
855
856 static
857 int load_all_plugins(const bt_value *plugin_paths)
858 {
859 int ret = 0;
860
861 if (load_dynamic_plugins(plugin_paths)) {
862 ret = -1;
863 goto end;
864 }
865
866 if (load_static_plugins()) {
867 ret = -1;
868 goto end;
869 }
870
871 BT_LOGI("Loaded all plugins: count=%u", loaded_plugins->len);
872
873 end:
874 return ret;
875 }
876
877 static
878 void print_plugin_info(const bt_plugin *plugin)
879 {
880 unsigned int major, minor, patch;
881 const char *extra;
882 bt_property_availability version_avail;
883 const char *plugin_name;
884 const char *path;
885 const char *author;
886 const char *license;
887 const char *plugin_description;
888
889 plugin_name = bt_plugin_get_name(plugin);
890 path = bt_plugin_get_path(plugin);
891 author = bt_plugin_get_author(plugin);
892 license = bt_plugin_get_license(plugin);
893 plugin_description = bt_plugin_get_description(plugin);
894 version_avail = bt_plugin_get_version(plugin, &major, &minor,
895 &patch, &extra);
896 printf("%s%s%s%s:\n", bt_common_color_bold(),
897 bt_common_color_fg_blue(), plugin_name,
898 bt_common_color_reset());
899 if (path) {
900 printf(" %sPath%s: %s\n", bt_common_color_bold(),
901 bt_common_color_reset(), path);
902 } else {
903 puts(" Built-in");
904 }
905
906 if (version_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) {
907 printf(" %sVersion%s: %u.%u.%u",
908 bt_common_color_bold(), bt_common_color_reset(),
909 major, minor, patch);
910
911 if (extra) {
912 printf("%s", extra);
913 }
914
915 printf("\n");
916 }
917
918 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
919 bt_common_color_reset(),
920 plugin_description ? plugin_description : "(None)");
921 printf(" %sAuthor%s: %s\n", bt_common_color_bold(),
922 bt_common_color_reset(), author ? author : "(Unknown)");
923 printf(" %sLicense%s: %s\n", bt_common_color_bold(),
924 bt_common_color_reset(),
925 license ? license : "(Unknown)");
926 }
927
928 static
929 int cmd_query(struct bt_config *cfg)
930 {
931 int ret = 0;
932 const bt_component_class *comp_cls = NULL;
933 const bt_value *results = NULL;
934 const char *fail_reason = NULL;
935
936 comp_cls = find_component_class(
937 cfg->cmd_data.query.cfg_component->plugin_name->str,
938 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
939 cfg->cmd_data.query.cfg_component->type);
940 if (!comp_cls) {
941 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
942 "comp-cls-name=\"%s\", comp-cls-type=%d",
943 cfg->cmd_data.query.cfg_component->plugin_name->str,
944 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
945 cfg->cmd_data.query.cfg_component->type);
946 fprintf(stderr, "%s%sCannot find component class %s",
947 bt_common_color_bold(),
948 bt_common_color_fg_red(),
949 bt_common_color_reset());
950 print_plugin_comp_cls_opt(stderr,
951 cfg->cmd_data.query.cfg_component->plugin_name->str,
952 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
953 cfg->cmd_data.query.cfg_component->type);
954 fprintf(stderr, "\n");
955 ret = -1;
956 goto end;
957 }
958
959 ret = query(cfg, comp_cls, cfg->cmd_data.query.object->str,
960 cfg->cmd_data.query.cfg_component->params,
961 &results, &fail_reason);
962 if (ret) {
963 goto failed;
964 }
965
966 print_value(stdout, results, 0);
967 goto end;
968
969 failed:
970 BT_LOGE("Failed to query component class: %s: plugin-name=\"%s\", "
971 "comp-cls-name=\"%s\", comp-cls-type=%d "
972 "object=\"%s\"", fail_reason,
973 cfg->cmd_data.query.cfg_component->plugin_name->str,
974 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
975 cfg->cmd_data.query.cfg_component->type,
976 cfg->cmd_data.query.object->str);
977 fprintf(stderr, "%s%sFailed to query info to %s",
978 bt_common_color_bold(),
979 bt_common_color_fg_red(),
980 bt_common_color_reset());
981 print_plugin_comp_cls_opt(stderr,
982 cfg->cmd_data.query.cfg_component->plugin_name->str,
983 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
984 cfg->cmd_data.query.cfg_component->type);
985 fprintf(stderr, "%s%s with object `%s`: %s%s\n",
986 bt_common_color_bold(),
987 bt_common_color_fg_red(),
988 cfg->cmd_data.query.object->str,
989 fail_reason,
990 bt_common_color_reset());
991 ret = -1;
992
993 end:
994 bt_component_class_put_ref(comp_cls);
995 bt_value_put_ref(results);
996 return ret;
997 }
998
999 static
1000 void print_component_class_help(const char *plugin_name,
1001 const bt_component_class *comp_cls)
1002 {
1003 const char *comp_class_name =
1004 bt_component_class_get_name(comp_cls);
1005 const char *comp_class_description =
1006 bt_component_class_get_description(comp_cls);
1007 const char *comp_class_help =
1008 bt_component_class_get_help(comp_cls);
1009 bt_component_class_type type =
1010 bt_component_class_get_type(comp_cls);
1011
1012 print_plugin_comp_cls_opt(stdout, plugin_name, comp_class_name, type);
1013 printf("\n");
1014 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
1015 bt_common_color_reset(),
1016 comp_class_description ? comp_class_description : "(None)");
1017
1018 if (comp_class_help) {
1019 printf("\n%s\n", comp_class_help);
1020 }
1021 }
1022
1023 static
1024 int cmd_help(struct bt_config *cfg)
1025 {
1026 int ret = 0;
1027 const bt_plugin *plugin = NULL;
1028 const bt_component_class *needed_comp_cls = NULL;
1029
1030 plugin = find_plugin(cfg->cmd_data.help.cfg_component->plugin_name->str);
1031 if (!plugin) {
1032 BT_LOGE("Cannot find plugin: plugin-name=\"%s\"",
1033 cfg->cmd_data.help.cfg_component->plugin_name->str);
1034 fprintf(stderr, "%s%sCannot find plugin %s%s%s\n",
1035 bt_common_color_bold(), bt_common_color_fg_red(),
1036 bt_common_color_fg_blue(),
1037 cfg->cmd_data.help.cfg_component->plugin_name->str,
1038 bt_common_color_reset());
1039 ret = -1;
1040 goto end;
1041 }
1042
1043 print_plugin_info(plugin);
1044 printf(" %sSource component classes%s: %d\n",
1045 bt_common_color_bold(),
1046 bt_common_color_reset(),
1047 (int) bt_plugin_get_source_component_class_count(plugin));
1048 printf(" %sFilter component classes%s: %d\n",
1049 bt_common_color_bold(),
1050 bt_common_color_reset(),
1051 (int) bt_plugin_get_filter_component_class_count(plugin));
1052 printf(" %sSink component classes%s: %d\n",
1053 bt_common_color_bold(),
1054 bt_common_color_reset(),
1055 (int) bt_plugin_get_sink_component_class_count(plugin));
1056
1057 if (strlen(cfg->cmd_data.help.cfg_component->comp_cls_name->str) == 0) {
1058 /* Plugin help only */
1059 goto end;
1060 }
1061
1062 needed_comp_cls = find_component_class(
1063 cfg->cmd_data.help.cfg_component->plugin_name->str,
1064 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
1065 cfg->cmd_data.help.cfg_component->type);
1066 if (!needed_comp_cls) {
1067 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1068 "comp-cls-name=\"%s\", comp-cls-type=%d",
1069 cfg->cmd_data.help.cfg_component->plugin_name->str,
1070 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
1071 cfg->cmd_data.help.cfg_component->type);
1072 fprintf(stderr, "\n%s%sCannot find component class %s",
1073 bt_common_color_bold(),
1074 bt_common_color_fg_red(),
1075 bt_common_color_reset());
1076 print_plugin_comp_cls_opt(stderr,
1077 cfg->cmd_data.help.cfg_component->plugin_name->str,
1078 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
1079 cfg->cmd_data.help.cfg_component->type);
1080 fprintf(stderr, "\n");
1081 ret = -1;
1082 goto end;
1083 }
1084
1085 printf("\n");
1086 print_component_class_help(
1087 cfg->cmd_data.help.cfg_component->plugin_name->str,
1088 needed_comp_cls);
1089
1090 end:
1091 bt_component_class_put_ref(needed_comp_cls);
1092 bt_plugin_put_ref(plugin);
1093 return ret;
1094 }
1095
1096 typedef void *(* plugin_borrow_comp_cls_by_index_func_t)(const bt_plugin *,
1097 uint64_t);
1098 typedef const bt_component_class *(* spec_comp_cls_borrow_comp_cls_func_t)(
1099 void *);
1100
1101 void cmd_list_plugins_print_component_classes(const bt_plugin *plugin,
1102 const char *cc_type_name, uint64_t count,
1103 plugin_borrow_comp_cls_by_index_func_t borrow_comp_cls_by_index_func,
1104 spec_comp_cls_borrow_comp_cls_func_t spec_comp_cls_borrow_comp_cls_func)
1105 {
1106 uint64_t i;
1107
1108 if (count == 0) {
1109 printf(" %s%s component classes%s: (none)\n",
1110 bt_common_color_bold(),
1111 cc_type_name,
1112 bt_common_color_reset());
1113 goto end;
1114 } else {
1115 printf(" %s%s component classes%s:\n",
1116 bt_common_color_bold(),
1117 cc_type_name,
1118 bt_common_color_reset());
1119 }
1120
1121 for (i = 0; i < count; i++) {
1122 const bt_component_class *comp_class =
1123 spec_comp_cls_borrow_comp_cls_func(
1124 borrow_comp_cls_by_index_func(plugin, i));
1125 const char *comp_class_name =
1126 bt_component_class_get_name(comp_class);
1127 const char *comp_class_description =
1128 bt_component_class_get_description(comp_class);
1129 bt_component_class_type type =
1130 bt_component_class_get_type(comp_class);
1131
1132 printf(" ");
1133 print_plugin_comp_cls_opt(stdout,
1134 bt_plugin_get_name(plugin), comp_class_name,
1135 type);
1136
1137 if (comp_class_description) {
1138 printf(": %s", comp_class_description);
1139 }
1140
1141 printf("\n");
1142 }
1143
1144 end:
1145 return;
1146 }
1147
1148 static
1149 int cmd_list_plugins(struct bt_config *cfg)
1150 {
1151 int ret = 0;
1152 int plugins_count, component_classes_count = 0, i;
1153
1154 printf("From the following plugin paths:\n\n");
1155 print_value(stdout, cfg->plugin_paths, 2);
1156 printf("\n");
1157 plugins_count = loaded_plugins->len;
1158 if (plugins_count == 0) {
1159 printf("No plugins found.\n");
1160 goto end;
1161 }
1162
1163 for (i = 0; i < plugins_count; i++) {
1164 const bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
1165
1166 component_classes_count +=
1167 bt_plugin_get_source_component_class_count(plugin) +
1168 bt_plugin_get_filter_component_class_count(plugin) +
1169 bt_plugin_get_sink_component_class_count(plugin);
1170 }
1171
1172 printf("Found %s%d%s component classes in %s%d%s plugins.\n",
1173 bt_common_color_bold(),
1174 component_classes_count,
1175 bt_common_color_reset(),
1176 bt_common_color_bold(),
1177 plugins_count,
1178 bt_common_color_reset());
1179
1180 for (i = 0; i < plugins_count; i++) {
1181 const bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
1182
1183 printf("\n");
1184 print_plugin_info(plugin);
1185 cmd_list_plugins_print_component_classes(plugin, "Source",
1186 bt_plugin_get_source_component_class_count(plugin),
1187 (plugin_borrow_comp_cls_by_index_func_t)
1188 bt_plugin_borrow_source_component_class_by_index_const,
1189 (spec_comp_cls_borrow_comp_cls_func_t)
1190 bt_component_class_source_as_component_class);
1191 cmd_list_plugins_print_component_classes(plugin, "Filter",
1192 bt_plugin_get_filter_component_class_count(plugin),
1193 (plugin_borrow_comp_cls_by_index_func_t)
1194 bt_plugin_borrow_filter_component_class_by_index_const,
1195 (spec_comp_cls_borrow_comp_cls_func_t)
1196 bt_component_class_filter_as_component_class);
1197 cmd_list_plugins_print_component_classes(plugin, "Sink",
1198 bt_plugin_get_sink_component_class_count(plugin),
1199 (plugin_borrow_comp_cls_by_index_func_t)
1200 bt_plugin_borrow_sink_component_class_by_index_const,
1201 (spec_comp_cls_borrow_comp_cls_func_t)
1202 bt_component_class_sink_as_component_class);
1203 }
1204
1205 end:
1206 return ret;
1207 }
1208
1209 static
1210 int cmd_print_lttng_live_sessions(struct bt_config *cfg)
1211 {
1212 int ret = 0;
1213 const bt_component_class *comp_cls = NULL;
1214 const bt_value *results = NULL;
1215 bt_value *params = NULL;
1216 const bt_value *map = NULL;
1217 const bt_value *v = NULL;
1218 static const char * const plugin_name = "ctf";
1219 static const char * const comp_cls_name = "lttng-live";
1220 static const bt_component_class_type comp_cls_type =
1221 BT_COMPONENT_CLASS_TYPE_SOURCE;
1222 int64_t array_size, i;
1223 const char *fail_reason = NULL;
1224 FILE *out_stream = stdout;
1225
1226 BT_ASSERT(cfg->cmd_data.print_lttng_live_sessions.url);
1227 comp_cls = find_component_class(plugin_name, comp_cls_name,
1228 comp_cls_type);
1229 if (!comp_cls) {
1230 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1231 "comp-cls-name=\"%s\", comp-cls-type=%d",
1232 plugin_name, comp_cls_name,
1233 BT_COMPONENT_CLASS_TYPE_SOURCE);
1234 fprintf(stderr, "%s%sCannot find component class %s",
1235 bt_common_color_bold(),
1236 bt_common_color_fg_red(),
1237 bt_common_color_reset());
1238 print_plugin_comp_cls_opt(stderr, plugin_name,
1239 comp_cls_name, comp_cls_type);
1240 fprintf(stderr, "\n");
1241 goto error;
1242 }
1243
1244 params = bt_value_map_create();
1245 if (!params) {
1246 goto error;
1247 }
1248
1249 ret = bt_value_map_insert_string_entry(params, "url",
1250 cfg->cmd_data.print_lttng_live_sessions.url->str);
1251 if (ret) {
1252 goto error;
1253 }
1254
1255 ret = query(cfg, comp_cls, "sessions", params,
1256 &results, &fail_reason);
1257 if (ret) {
1258 goto failed;
1259 }
1260
1261 BT_ASSERT(results);
1262
1263 if (!bt_value_is_array(results)) {
1264 BT_LOGE_STR("Expecting an array for sessions query.");
1265 fprintf(stderr, "%s%sUnexpected type returned by session query%s\n",
1266 bt_common_color_bold(),
1267 bt_common_color_fg_red(),
1268 bt_common_color_reset());
1269 goto error;
1270 }
1271
1272 if (cfg->cmd_data.print_lttng_live_sessions.output_path->len > 0) {
1273 out_stream =
1274 fopen(cfg->cmd_data.print_lttng_live_sessions.output_path->str,
1275 "w");
1276 if (!out_stream) {
1277 ret = -1;
1278 BT_LOGE_ERRNO("Cannot open file for writing",
1279 ": path=\"%s\"",
1280 cfg->cmd_data.print_lttng_live_sessions.output_path->str);
1281 goto end;
1282 }
1283 }
1284
1285 array_size = bt_value_array_get_size(results);
1286 for (i = 0; i < array_size; i++) {
1287 const char *url_text;
1288 int64_t timer_us, streams, clients;
1289
1290 map = bt_value_array_borrow_element_by_index_const(results, i);
1291 if (!map) {
1292 BT_LOGE_STR("Unexpected empty array entry.");
1293 goto error;
1294 }
1295 if (!bt_value_is_map(map)) {
1296 BT_LOGE_STR("Unexpected entry type.");
1297 goto error;
1298 }
1299
1300 v = bt_value_map_borrow_entry_value_const(map, "url");
1301 if (!v) {
1302 BT_LOGE_STR("Unexpected empty array \"url\" entry.");
1303 goto error;
1304 }
1305 url_text = bt_value_string_get(v);
1306 fprintf(out_stream, "%s", url_text);
1307 v = bt_value_map_borrow_entry_value_const(map, "timer-us");
1308 if (!v) {
1309 BT_LOGE_STR("Unexpected empty array \"timer-us\" entry.");
1310 goto error;
1311 }
1312 timer_us = bt_value_signed_integer_get(v);
1313 fprintf(out_stream, " (timer = %" PRIu64 ", ", timer_us);
1314 v = bt_value_map_borrow_entry_value_const(map, "stream-count");
1315 if (!v) {
1316 BT_LOGE_STR("Unexpected empty array \"stream-count\" entry.");
1317 goto error;
1318 }
1319 streams = bt_value_signed_integer_get(v);
1320 fprintf(out_stream, "%" PRIu64 " stream(s), ", streams);
1321 v = bt_value_map_borrow_entry_value_const(map, "client-count");
1322 if (!v) {
1323 BT_LOGE_STR("Unexpected empty array \"client-count\" entry.");
1324 goto error;
1325 }
1326 clients = bt_value_signed_integer_get(v);
1327 fprintf(out_stream, "%" PRIu64 " client(s) connected)\n", clients);
1328 }
1329
1330 goto end;
1331
1332 failed:
1333 BT_LOGE("Failed to query for sessions: %s", fail_reason);
1334 fprintf(stderr, "%s%sFailed to request sessions: %s%s\n",
1335 bt_common_color_bold(),
1336 bt_common_color_fg_red(),
1337 fail_reason,
1338 bt_common_color_reset());
1339
1340 error:
1341 ret = -1;
1342
1343 end:
1344 bt_value_put_ref(results);
1345 bt_value_put_ref(params);
1346 bt_component_class_put_ref(comp_cls);
1347
1348 if (out_stream && out_stream != stdout) {
1349 int fclose_ret = fclose(out_stream);
1350
1351 if (fclose_ret) {
1352 BT_LOGE_ERRNO("Cannot close file stream",
1353 ": path=\"%s\"",
1354 cfg->cmd_data.print_lttng_live_sessions.output_path->str);
1355 }
1356 }
1357
1358 return ret;
1359 }
1360
1361 static
1362 int cmd_print_ctf_metadata(struct bt_config *cfg)
1363 {
1364 int ret = 0;
1365 const bt_component_class *comp_cls = NULL;
1366 const bt_value *results = NULL;
1367 bt_value *params = NULL;
1368 const bt_value *metadata_text_value = NULL;
1369 const char *metadata_text = NULL;
1370 static const char * const plugin_name = "ctf";
1371 static const char * const comp_cls_name = "fs";
1372 static const bt_component_class_type comp_cls_type =
1373 BT_COMPONENT_CLASS_TYPE_SOURCE;
1374 const char *fail_reason = NULL;
1375 FILE *out_stream = stdout;
1376
1377 BT_ASSERT(cfg->cmd_data.print_ctf_metadata.path);
1378 comp_cls = find_component_class(plugin_name, comp_cls_name,
1379 comp_cls_type);
1380 if (!comp_cls) {
1381 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1382 "comp-cls-name=\"%s\", comp-cls-type=%d",
1383 plugin_name, comp_cls_name,
1384 BT_COMPONENT_CLASS_TYPE_SOURCE);
1385 fprintf(stderr, "%s%sCannot find component class %s",
1386 bt_common_color_bold(),
1387 bt_common_color_fg_red(),
1388 bt_common_color_reset());
1389 print_plugin_comp_cls_opt(stderr, plugin_name,
1390 comp_cls_name, comp_cls_type);
1391 fprintf(stderr, "\n");
1392 ret = -1;
1393 goto end;
1394 }
1395
1396 params = bt_value_map_create();
1397 if (!params) {
1398 ret = -1;
1399 goto end;
1400 }
1401
1402 ret = bt_value_map_insert_string_entry(params, "path",
1403 cfg->cmd_data.print_ctf_metadata.path->str);
1404 if (ret) {
1405 ret = -1;
1406 goto end;
1407 }
1408
1409 ret = query(cfg, comp_cls, "metadata-info",
1410 params, &results, &fail_reason);
1411 if (ret) {
1412 goto failed;
1413 }
1414
1415 metadata_text_value = bt_value_map_borrow_entry_value_const(results,
1416 "text");
1417 if (!metadata_text_value) {
1418 BT_LOGE_STR("Cannot find `text` string value in the resulting metadata info object.");
1419 ret = -1;
1420 goto end;
1421 }
1422
1423 metadata_text = bt_value_string_get(metadata_text_value);
1424
1425 if (cfg->cmd_data.print_ctf_metadata.output_path->len > 0) {
1426 out_stream =
1427 fopen(cfg->cmd_data.print_ctf_metadata.output_path->str,
1428 "w");
1429 if (!out_stream) {
1430 ret = -1;
1431 BT_LOGE_ERRNO("Cannot open file for writing",
1432 ": path=\"%s\"",
1433 cfg->cmd_data.print_ctf_metadata.output_path->str);
1434 goto end;
1435 }
1436 }
1437
1438 ret = fprintf(out_stream, "%s\n", metadata_text);
1439 if (ret < 0) {
1440 BT_LOGE("Cannot write whole metadata text to output stream: "
1441 "ret=%d", ret);
1442 goto end;
1443 }
1444
1445 ret = 0;
1446
1447 goto end;
1448
1449 failed:
1450 ret = -1;
1451 BT_LOGE("Failed to query for metadata info: %s", fail_reason);
1452 fprintf(stderr, "%s%sFailed to request metadata info: %s%s\n",
1453 bt_common_color_bold(),
1454 bt_common_color_fg_red(),
1455 fail_reason,
1456 bt_common_color_reset());
1457
1458 end:
1459 bt_value_put_ref(results);
1460 bt_value_put_ref(params);
1461 bt_component_class_put_ref(comp_cls);
1462
1463 if (out_stream && out_stream != stdout) {
1464 int fclose_ret = fclose(out_stream);
1465
1466 if (fclose_ret) {
1467 BT_LOGE_ERRNO("Cannot close file stream",
1468 ": path=\"%s\"",
1469 cfg->cmd_data.print_ctf_metadata.output_path->str);
1470 }
1471 }
1472
1473 return ret;
1474 }
1475
1476 struct port_id {
1477 char *instance_name;
1478 char *port_name;
1479 };
1480
1481 struct trace_range {
1482 uint64_t intersection_range_begin_ns;
1483 uint64_t intersection_range_end_ns;
1484 };
1485
1486 static
1487 guint port_id_hash(gconstpointer v)
1488 {
1489 const struct port_id *id = v;
1490
1491 BT_ASSERT(id->instance_name);
1492 BT_ASSERT(id->port_name);
1493
1494 return g_str_hash(id->instance_name) ^ g_str_hash(id->port_name);
1495 }
1496
1497 static
1498 gboolean port_id_equal(gconstpointer v1, gconstpointer v2)
1499 {
1500 const struct port_id *id1 = v1;
1501 const struct port_id *id2 = v2;
1502
1503 return !strcmp(id1->instance_name, id2->instance_name) &&
1504 !strcmp(id1->port_name, id2->port_name);
1505 }
1506
1507 static
1508 void port_id_destroy(gpointer data)
1509 {
1510 struct port_id *id = data;
1511
1512 free(id->instance_name);
1513 free(id->port_name);
1514 free(id);
1515 }
1516
1517 static
1518 void trace_range_destroy(gpointer data)
1519 {
1520 free(data);
1521 }
1522
1523 struct cmd_run_ctx {
1524 /* Owned by this */
1525 GHashTable *src_components;
1526
1527 /* Owned by this */
1528 GHashTable *flt_components;
1529
1530 /* Owned by this */
1531 GHashTable *sink_components;
1532
1533 /* Owned by this */
1534 bt_graph *graph;
1535
1536 /* Weak */
1537 struct bt_config *cfg;
1538
1539 bool connect_ports;
1540
1541 bool stream_intersection_mode;
1542
1543 /*
1544 * Association of struct port_id -> struct trace_range.
1545 */
1546 GHashTable *intersections;
1547 };
1548
1549 /* Returns a timestamp of the form "(-)s.ns" */
1550 static
1551 char *s_from_ns(int64_t ns)
1552 {
1553 int ret;
1554 char *s_ret = NULL;
1555 bool is_negative;
1556 int64_t ts_sec_abs, ts_nsec_abs;
1557 int64_t ts_sec = ns / NSEC_PER_SEC;
1558 int64_t ts_nsec = ns % NSEC_PER_SEC;
1559
1560 if (ts_sec >= 0 && ts_nsec >= 0) {
1561 is_negative = false;
1562 ts_sec_abs = ts_sec;
1563 ts_nsec_abs = ts_nsec;
1564 } else if (ts_sec > 0 && ts_nsec < 0) {
1565 is_negative = false;
1566 ts_sec_abs = ts_sec - 1;
1567 ts_nsec_abs = NSEC_PER_SEC + ts_nsec;
1568 } else if (ts_sec == 0 && ts_nsec < 0) {
1569 is_negative = true;
1570 ts_sec_abs = ts_sec;
1571 ts_nsec_abs = -ts_nsec;
1572 } else if (ts_sec < 0 && ts_nsec > 0) {
1573 is_negative = true;
1574 ts_sec_abs = -(ts_sec + 1);
1575 ts_nsec_abs = NSEC_PER_SEC - ts_nsec;
1576 } else if (ts_sec < 0 && ts_nsec == 0) {
1577 is_negative = true;
1578 ts_sec_abs = -ts_sec;
1579 ts_nsec_abs = ts_nsec;
1580 } else { /* (ts_sec < 0 && ts_nsec < 0) */
1581 is_negative = true;
1582 ts_sec_abs = -ts_sec;
1583 ts_nsec_abs = -ts_nsec;
1584 }
1585
1586 ret = asprintf(&s_ret, "%s%" PRId64 ".%09" PRId64,
1587 is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs);
1588 if (ret < 0) {
1589 s_ret = NULL;
1590 }
1591 return s_ret;
1592 }
1593
1594 static
1595 int cmd_run_ctx_connect_upstream_port_to_downstream_component(
1596 struct cmd_run_ctx *ctx,
1597 const bt_component *upstream_comp,
1598 const bt_port_output *out_upstream_port,
1599 struct bt_config_connection *cfg_conn)
1600 {
1601 typedef uint64_t (*input_port_count_func_t)(void *);
1602 typedef const bt_port_input *(*borrow_input_port_by_index_func_t)(
1603 const void *, uint64_t);
1604 const bt_port *upstream_port =
1605 bt_port_output_as_port_const(out_upstream_port);
1606
1607 int ret = 0;
1608 GQuark downstreamp_comp_name_quark;
1609 void *downstream_comp;
1610 uint64_t downstream_port_count;
1611 uint64_t i;
1612 input_port_count_func_t port_count_fn;
1613 borrow_input_port_by_index_func_t port_by_index_fn;
1614 bt_graph_status status = BT_GRAPH_STATUS_ERROR;
1615 bool insert_trimmer = false;
1616 bt_value *trimmer_params = NULL;
1617 char *intersection_begin = NULL;
1618 char *intersection_end = NULL;
1619 const bt_component_filter *trimmer = NULL;
1620 const bt_component_class_filter *trimmer_class = NULL;
1621 const bt_port_input *trimmer_input = NULL;
1622 const bt_port_output *trimmer_output = NULL;
1623
1624 if (ctx->intersections &&
1625 bt_component_get_class_type(upstream_comp) ==
1626 BT_COMPONENT_CLASS_TYPE_SOURCE) {
1627 struct trace_range *range;
1628 struct port_id port_id = {
1629 .instance_name = (char *) bt_component_get_name(upstream_comp),
1630 .port_name = (char *) bt_port_get_name(upstream_port)
1631 };
1632
1633 if (!port_id.instance_name || !port_id.port_name) {
1634 goto error;
1635 }
1636
1637 range = (struct trace_range *) g_hash_table_lookup(
1638 ctx->intersections, &port_id);
1639 if (range) {
1640 bt_value_status status;
1641
1642 intersection_begin = s_from_ns(
1643 range->intersection_range_begin_ns);
1644 intersection_end = s_from_ns(
1645 range->intersection_range_end_ns);
1646 if (!intersection_begin || !intersection_end) {
1647 BT_LOGE_STR("Cannot create trimmer argument timestamp string.");
1648 goto error;
1649 }
1650
1651 insert_trimmer = true;
1652 trimmer_params = bt_value_map_create();
1653 if (!trimmer_params) {
1654 goto error;
1655 }
1656
1657 status = bt_value_map_insert_string_entry(
1658 trimmer_params, "begin", intersection_begin);
1659 if (status != BT_VALUE_STATUS_OK) {
1660 goto error;
1661 }
1662 status = bt_value_map_insert_string_entry(
1663 trimmer_params,
1664 "end", intersection_end);
1665 if (status != BT_VALUE_STATUS_OK) {
1666 goto error;
1667 }
1668 }
1669
1670 trimmer_class = find_filter_component_class("utils", "trimmer");
1671 if (!trimmer_class) {
1672 goto error;
1673 }
1674 }
1675
1676 BT_LOGI("Connecting upstream port to the next available downstream port: "
1677 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1678 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1679 upstream_port, bt_port_get_name(upstream_port),
1680 cfg_conn->downstream_comp_name->str,
1681 cfg_conn->arg->str);
1682 downstreamp_comp_name_quark = g_quark_from_string(
1683 cfg_conn->downstream_comp_name->str);
1684 BT_ASSERT(downstreamp_comp_name_quark > 0);
1685 downstream_comp = g_hash_table_lookup(ctx->flt_components,
1686 GUINT_TO_POINTER(downstreamp_comp_name_quark));
1687 port_count_fn = (input_port_count_func_t)
1688 bt_component_filter_get_input_port_count;
1689 port_by_index_fn = (borrow_input_port_by_index_func_t)
1690 bt_component_filter_borrow_input_port_by_index_const;
1691
1692 if (!downstream_comp) {
1693 downstream_comp = g_hash_table_lookup(ctx->sink_components,
1694 GUINT_TO_POINTER(downstreamp_comp_name_quark));
1695 port_count_fn = (input_port_count_func_t)
1696 bt_component_sink_get_input_port_count;
1697 port_by_index_fn = (borrow_input_port_by_index_func_t)
1698 bt_component_sink_borrow_input_port_by_index_const;
1699 }
1700
1701 if (!downstream_comp) {
1702 BT_LOGE("Cannot find downstream component: comp-name=\"%s\", "
1703 "conn-arg=\"%s\"", cfg_conn->downstream_comp_name->str,
1704 cfg_conn->arg->str);
1705 fprintf(stderr, "Cannot create connection: cannot find downstream component: %s\n",
1706 cfg_conn->arg->str);
1707 goto error;
1708 }
1709
1710 downstream_port_count = port_count_fn(downstream_comp);
1711
1712 for (i = 0; i < downstream_port_count; i++) {
1713 const bt_port_input *in_downstream_port =
1714 port_by_index_fn(downstream_comp, i);
1715 const bt_port *downstream_port =
1716 bt_port_input_as_port_const(in_downstream_port);
1717 const char *upstream_port_name;
1718 const char *downstream_port_name;
1719
1720 BT_ASSERT(downstream_port);
1721
1722 /* Skip port if it's already connected. */
1723 if (bt_port_is_connected(downstream_port)) {
1724 BT_LOGI("Skipping downstream port: already connected: "
1725 "port-addr=%p, port-name=\"%s\"",
1726 downstream_port,
1727 bt_port_get_name(downstream_port));
1728 continue;
1729 }
1730
1731 downstream_port_name = bt_port_get_name(downstream_port);
1732 BT_ASSERT(downstream_port_name);
1733 upstream_port_name = bt_port_get_name(upstream_port);
1734 BT_ASSERT(upstream_port_name);
1735
1736 if (!bt_common_star_glob_match(
1737 cfg_conn->downstream_port_glob->str, SIZE_MAX,
1738 downstream_port_name, SIZE_MAX)) {
1739 continue;
1740 }
1741
1742 if (insert_trimmer) {
1743 /*
1744 * In order to insert the trimmer between the
1745 * two components that were being connected, we
1746 * create a connection configuration entry which
1747 * describes a connection from the trimmer's
1748 * output to the original input that was being
1749 * connected.
1750 *
1751 * Hence, the creation of the trimmer will cause
1752 * the graph "new port" listener to establish
1753 * all downstream connections as its output port
1754 * is connected. We will then establish the
1755 * connection between the original upstream
1756 * source and the trimmer.
1757 */
1758 char *trimmer_name = NULL;
1759 bt_graph_status graph_status;
1760
1761 ret = asprintf(&trimmer_name,
1762 "stream-intersection-trimmer-%s",
1763 upstream_port_name);
1764 if (ret < 0) {
1765 goto error;
1766 }
1767 ret = 0;
1768
1769 ctx->connect_ports = false;
1770 graph_status = bt_graph_add_filter_component(
1771 ctx->graph, trimmer_class, trimmer_name,
1772 trimmer_params, ctx->cfg->log_level,
1773 &trimmer);
1774 free(trimmer_name);
1775 if (graph_status != BT_GRAPH_STATUS_OK) {
1776 goto error;
1777 }
1778 BT_ASSERT(trimmer);
1779
1780 trimmer_input =
1781 bt_component_filter_borrow_input_port_by_index_const(
1782 trimmer, 0);
1783 if (!trimmer_input) {
1784 goto error;
1785 }
1786 trimmer_output =
1787 bt_component_filter_borrow_output_port_by_index_const(
1788 trimmer, 0);
1789 if (!trimmer_output) {
1790 goto error;
1791 }
1792
1793 /*
1794 * Replace the current downstream port by the trimmer's
1795 * upstream port.
1796 */
1797 in_downstream_port = trimmer_input;
1798 downstream_port =
1799 bt_port_input_as_port_const(in_downstream_port);
1800 downstream_port_name = bt_port_get_name(
1801 downstream_port);
1802 BT_ASSERT(downstream_port_name);
1803 }
1804
1805 /* We have a winner! */
1806 status = bt_graph_connect_ports(ctx->graph,
1807 out_upstream_port, in_downstream_port, NULL);
1808 downstream_port = NULL;
1809 switch (status) {
1810 case BT_GRAPH_STATUS_OK:
1811 break;
1812 case BT_GRAPH_STATUS_CANCELED:
1813 BT_LOGI_STR("Graph was canceled by user.");
1814 status = BT_GRAPH_STATUS_OK;
1815 break;
1816 case BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION:
1817 BT_LOGE("A component refused a connection to one of its ports: "
1818 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1819 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1820 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1821 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1822 "conn-arg=\"%s\"",
1823 upstream_comp, bt_component_get_name(upstream_comp),
1824 upstream_port, bt_port_get_name(upstream_port),
1825 downstream_comp, cfg_conn->downstream_comp_name->str,
1826 downstream_port, downstream_port_name,
1827 cfg_conn->arg->str);
1828 fprintf(stderr,
1829 "A component refused a connection to one of its ports (`%s` to `%s`): %s\n",
1830 bt_port_get_name(upstream_port),
1831 downstream_port_name,
1832 cfg_conn->arg->str);
1833 break;
1834 default:
1835 BT_LOGE("Cannot create connection: graph refuses to connect ports: "
1836 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1837 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1838 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1839 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1840 "conn-arg=\"%s\"",
1841 upstream_comp, bt_component_get_name(upstream_comp),
1842 upstream_port, bt_port_get_name(upstream_port),
1843 downstream_comp, cfg_conn->downstream_comp_name->str,
1844 downstream_port, downstream_port_name,
1845 cfg_conn->arg->str);
1846 fprintf(stderr,
1847 "Cannot create connection: graph refuses to connect ports (`%s` to `%s`): %s\n",
1848 bt_port_get_name(upstream_port),
1849 downstream_port_name,
1850 cfg_conn->arg->str);
1851 goto error;
1852 }
1853
1854 BT_LOGI("Connected component ports: "
1855 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1856 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1857 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1858 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1859 "conn-arg=\"%s\"",
1860 upstream_comp, bt_component_get_name(upstream_comp),
1861 upstream_port, bt_port_get_name(upstream_port),
1862 downstream_comp, cfg_conn->downstream_comp_name->str,
1863 downstream_port, downstream_port_name,
1864 cfg_conn->arg->str);
1865
1866 if (insert_trimmer) {
1867 /*
1868 * The first connection, from the source to the trimmer,
1869 * has been done. We now connect the trimmer to the
1870 * original downstream port.
1871 */
1872 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1873 ctx,
1874 bt_component_filter_as_component_const(trimmer),
1875 trimmer_output, cfg_conn);
1876 if (ret) {
1877 goto error;
1878 }
1879 ctx->connect_ports = true;
1880 }
1881
1882 /*
1883 * We found a matching downstream port: the search is
1884 * over.
1885 */
1886 goto end;
1887 }
1888
1889 /* No downstream port found */
1890 BT_LOGE("Cannot create connection: cannot find a matching downstream port for upstream port: "
1891 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1892 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1893 upstream_port, bt_port_get_name(upstream_port),
1894 cfg_conn->downstream_comp_name->str,
1895 cfg_conn->arg->str);
1896 fprintf(stderr,
1897 "Cannot create connection: cannot find a matching downstream port for upstream port `%s`: %s\n",
1898 bt_port_get_name(upstream_port), cfg_conn->arg->str);
1899
1900 error:
1901 ret = -1;
1902
1903 end:
1904 free(intersection_begin);
1905 free(intersection_end);
1906 BT_VALUE_PUT_REF_AND_RESET(trimmer_params);
1907 BT_COMPONENT_CLASS_FILTER_PUT_REF_AND_RESET(trimmer_class);
1908 BT_COMPONENT_FILTER_PUT_REF_AND_RESET(trimmer);
1909 return ret;
1910 }
1911
1912 static
1913 int cmd_run_ctx_connect_upstream_port(struct cmd_run_ctx *ctx,
1914 const bt_port_output *upstream_port)
1915 {
1916 int ret = 0;
1917 const char *upstream_port_name;
1918 const char *upstream_comp_name;
1919 const bt_component *upstream_comp = NULL;
1920 size_t i;
1921
1922 BT_ASSERT(ctx);
1923 BT_ASSERT(upstream_port);
1924 upstream_port_name = bt_port_get_name(
1925 bt_port_output_as_port_const(upstream_port));
1926 BT_ASSERT(upstream_port_name);
1927 upstream_comp = bt_port_borrow_component_const(
1928 bt_port_output_as_port_const(upstream_port));
1929 if (!upstream_comp) {
1930 BT_LOGW("Upstream port to connect is not part of a component: "
1931 "port-addr=%p, port-name=\"%s\"",
1932 upstream_port, upstream_port_name);
1933 ret = -1;
1934 goto end;
1935 }
1936
1937 upstream_comp_name = bt_component_get_name(upstream_comp);
1938 BT_ASSERT(upstream_comp_name);
1939 BT_LOGI("Connecting upstream port: comp-addr=%p, comp-name=\"%s\", "
1940 "port-addr=%p, port-name=\"%s\"",
1941 upstream_comp, upstream_comp_name,
1942 upstream_port, upstream_port_name);
1943
1944 for (i = 0; i < ctx->cfg->cmd_data.run.connections->len; i++) {
1945 struct bt_config_connection *cfg_conn =
1946 g_ptr_array_index(
1947 ctx->cfg->cmd_data.run.connections, i);
1948
1949 if (strcmp(cfg_conn->upstream_comp_name->str,
1950 upstream_comp_name)) {
1951 continue;
1952 }
1953
1954 if (!bt_common_star_glob_match(
1955 cfg_conn->upstream_port_glob->str,
1956 SIZE_MAX, upstream_port_name, SIZE_MAX)) {
1957 continue;
1958 }
1959
1960 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1961 ctx, upstream_comp, upstream_port, cfg_conn);
1962 if (ret) {
1963 BT_LOGE("Cannot connect upstream port: "
1964 "port-addr=%p, port-name=\"%s\"",
1965 upstream_port,
1966 upstream_port_name);
1967 fprintf(stderr,
1968 "Cannot connect port `%s` of component `%s` to a downstream port: %s\n",
1969 upstream_port_name,
1970 upstream_comp_name,
1971 cfg_conn->arg->str);
1972 goto error;
1973 }
1974 goto end;
1975 }
1976
1977 BT_LOGE("Cannot connect upstream port: port does not match any connection argument: "
1978 "port-addr=%p, port-name=\"%s\"", upstream_port,
1979 upstream_port_name);
1980 fprintf(stderr,
1981 "Cannot create connection: upstream port `%s` does not match any connection\n",
1982 upstream_port_name);
1983
1984 error:
1985 ret = -1;
1986
1987 end:
1988 return ret;
1989 }
1990
1991 static
1992 bt_graph_listener_status
1993 graph_output_port_added_listener(struct cmd_run_ctx *ctx,
1994 const bt_port_output *out_port)
1995 {
1996 const bt_component *comp;
1997 const bt_port *port = bt_port_output_as_port_const(out_port);
1998 bt_graph_listener_status ret = BT_GRAPH_LISTENER_STATUS_OK;
1999
2000 comp = bt_port_borrow_component_const(port);
2001 BT_LOGI("Port added to a graph's component: comp-addr=%p, "
2002 "comp-name=\"%s\", port-addr=%p, port-name=\"%s\"",
2003 comp, comp ? bt_component_get_name(comp) : "",
2004 port, bt_port_get_name(port));
2005
2006 if (!ctx->connect_ports) {
2007 goto end;
2008 }
2009
2010 if (!comp) {
2011 BT_LOGW_STR("Port has no component.");
2012 goto end;
2013 }
2014
2015 if (bt_port_is_connected(port)) {
2016 BT_LOGW_STR("Port is already connected.");
2017 goto end;
2018 }
2019
2020 if (cmd_run_ctx_connect_upstream_port(ctx, out_port)) {
2021 BT_LOGF_STR("Cannot connect upstream port.");
2022 fprintf(stderr, "Added port could not be connected: aborting\n");
2023 ret = BT_GRAPH_LISTENER_STATUS_ERROR;
2024 goto end;
2025 }
2026
2027 end:
2028 return ret;
2029 }
2030
2031 static
2032 bt_graph_listener_status graph_source_output_port_added_listener(
2033 const bt_component_source *component,
2034 const bt_port_output *port, void *data)
2035 {
2036 return graph_output_port_added_listener(data, port);
2037 }
2038
2039 static
2040 bt_graph_listener_status graph_filter_output_port_added_listener(
2041 const bt_component_filter *component,
2042 const bt_port_output *port, void *data)
2043 {
2044 return graph_output_port_added_listener(data, port);
2045 }
2046
2047 static
2048 void cmd_run_ctx_destroy(struct cmd_run_ctx *ctx)
2049 {
2050 if (!ctx) {
2051 return;
2052 }
2053
2054 if (ctx->src_components) {
2055 g_hash_table_destroy(ctx->src_components);
2056 ctx->src_components = NULL;
2057 }
2058
2059 if (ctx->flt_components) {
2060 g_hash_table_destroy(ctx->flt_components);
2061 ctx->flt_components = NULL;
2062 }
2063
2064 if (ctx->sink_components) {
2065 g_hash_table_destroy(ctx->sink_components);
2066 ctx->sink_components = NULL;
2067 }
2068
2069 if (ctx->intersections) {
2070 g_hash_table_destroy(ctx->intersections);
2071 ctx->intersections = NULL;
2072 }
2073
2074 BT_GRAPH_PUT_REF_AND_RESET(ctx->graph);
2075 the_graph = NULL;
2076 ctx->cfg = NULL;
2077 }
2078
2079 static
2080 int cmd_run_ctx_init(struct cmd_run_ctx *ctx, struct bt_config *cfg)
2081 {
2082 int ret = 0;
2083 bt_graph_status status;
2084
2085 ctx->cfg = cfg;
2086 ctx->connect_ports = false;
2087 ctx->src_components = g_hash_table_new_full(g_direct_hash,
2088 g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref);
2089 if (!ctx->src_components) {
2090 goto error;
2091 }
2092
2093 ctx->flt_components = g_hash_table_new_full(g_direct_hash,
2094 g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref);
2095 if (!ctx->flt_components) {
2096 goto error;
2097 }
2098
2099 ctx->sink_components = g_hash_table_new_full(g_direct_hash,
2100 g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref);
2101 if (!ctx->sink_components) {
2102 goto error;
2103 }
2104
2105 if (cfg->cmd_data.run.stream_intersection_mode) {
2106 ctx->stream_intersection_mode = true;
2107 ctx->intersections = g_hash_table_new_full(port_id_hash,
2108 port_id_equal, port_id_destroy, trace_range_destroy);
2109 if (!ctx->intersections) {
2110 goto error;
2111 }
2112 }
2113
2114 ctx->graph = bt_graph_create();
2115 if (!ctx->graph) {
2116 goto error;
2117 }
2118
2119 the_graph = ctx->graph;
2120 status = bt_graph_add_source_component_output_port_added_listener(
2121 ctx->graph, graph_source_output_port_added_listener, NULL, ctx,
2122 NULL);
2123 if (status != BT_GRAPH_STATUS_OK) {
2124 BT_LOGE_STR("Cannot add \"port added\" listener to graph.");
2125 goto error;
2126 }
2127
2128 status = bt_graph_add_filter_component_output_port_added_listener(
2129 ctx->graph, graph_filter_output_port_added_listener, NULL, ctx,
2130 NULL);
2131 if (status != BT_GRAPH_STATUS_OK) {
2132 BT_LOGE_STR("Cannot add \"port added\" listener to graph.");
2133 goto error;
2134 }
2135
2136 goto end;
2137
2138 error:
2139 cmd_run_ctx_destroy(ctx);
2140 ret = -1;
2141
2142 end:
2143 return ret;
2144 }
2145
2146 static
2147 int set_stream_intersections(struct cmd_run_ctx *ctx,
2148 struct bt_config_component *cfg_comp,
2149 const bt_component_class_source *src_comp_cls)
2150 {
2151 int ret = 0;
2152 uint64_t trace_idx;
2153 int64_t trace_count;
2154 const char *path = NULL;
2155 const bt_value *query_result = NULL;
2156 const bt_value *trace_info = NULL;
2157 const bt_value *intersection_range = NULL;
2158 const bt_value *intersection_begin = NULL;
2159 const bt_value *intersection_end = NULL;
2160 const bt_value *stream_infos = NULL;
2161 const bt_value *stream_info = NULL;
2162 struct port_id *port_id = NULL;
2163 struct trace_range *trace_range = NULL;
2164 const char *fail_reason = NULL;
2165 const bt_component_class *comp_cls =
2166 bt_component_class_source_as_component_class_const(src_comp_cls);
2167
2168 ret = query(ctx->cfg, comp_cls, "trace-info",
2169 cfg_comp->params, &query_result,
2170 &fail_reason);
2171 if (ret) {
2172 BT_LOGD("Component class does not support the `trace-info` query: %s: "
2173 "comp-class-name=\"%s\"", fail_reason,
2174 bt_component_class_get_name(comp_cls));
2175 ret = -1;
2176 goto error;
2177 }
2178
2179 BT_ASSERT(query_result);
2180
2181 if (!bt_value_is_array(query_result)) {
2182 BT_LOGD("Unexpected format of \'trace-info\' query result: "
2183 "component-class-name=%s",
2184 bt_component_class_get_name(comp_cls));
2185 ret = -1;
2186 goto error;
2187 }
2188
2189 trace_count = bt_value_array_get_size(query_result);
2190 if (trace_count < 0) {
2191 ret = -1;
2192 goto error;
2193 }
2194
2195 for (trace_idx = 0; trace_idx < trace_count; trace_idx++) {
2196 int64_t begin, end;
2197 uint64_t stream_idx;
2198 int64_t stream_count;
2199
2200 trace_info = bt_value_array_borrow_element_by_index_const(
2201 query_result, trace_idx);
2202 if (!trace_info || !bt_value_is_map(trace_info)) {
2203 ret = -1;
2204 BT_LOGD_STR("Cannot retrieve trace from query result.");
2205 goto error;
2206 }
2207
2208 intersection_range = bt_value_map_borrow_entry_value_const(
2209 trace_info, "intersection-range-ns");
2210 if (!intersection_range) {
2211 ret = -1;
2212 BT_LOGD_STR("Cannot retrieve \'intersetion-range-ns\' field from query result.");
2213 goto error;
2214 }
2215
2216 intersection_begin = bt_value_map_borrow_entry_value_const(intersection_range,
2217 "begin");
2218 if (!intersection_begin) {
2219 ret = -1;
2220 BT_LOGD_STR("Cannot retrieve intersection-range-ns \'begin\' field from query result.");
2221 goto error;
2222 }
2223
2224 intersection_end = bt_value_map_borrow_entry_value_const(intersection_range,
2225 "end");
2226 if (!intersection_end) {
2227 ret = -1;
2228 BT_LOGD_STR("Cannot retrieve intersection-range-ns \'end\' field from query result.");
2229 goto error;
2230 }
2231
2232 begin = bt_value_signed_integer_get(intersection_begin);
2233 end = bt_value_signed_integer_get(intersection_end);
2234
2235 if (begin < 0 || end < 0 || end < begin) {
2236 BT_LOGW("Invalid trace stream intersection values: "
2237 "intersection-range-ns:begin=%" PRId64
2238 ", intersection-range-ns:end=%" PRId64,
2239 begin, end);
2240 ret = -1;
2241 goto error;
2242 }
2243
2244 stream_infos = bt_value_map_borrow_entry_value_const(trace_info,
2245 "streams");
2246 if (!stream_infos || !bt_value_is_array(stream_infos)) {
2247 ret = -1;
2248 BT_LOGD_STR("Cannot retrieve stream information from trace in query result.");
2249 goto error;
2250 }
2251
2252 stream_count = bt_value_array_get_size(stream_infos);
2253 if (stream_count < 0) {
2254 ret = -1;
2255 goto error;
2256 }
2257
2258 for (stream_idx = 0; stream_idx < stream_count; stream_idx++) {
2259 const bt_value *port_name;
2260
2261 port_id = g_new0(struct port_id, 1);
2262 if (!port_id) {
2263 ret = -1;
2264 BT_LOGE_STR("Cannot allocate memory for port_id structure.");
2265 goto error;
2266 }
2267 port_id->instance_name = strdup(cfg_comp->instance_name->str);
2268 if (!port_id->instance_name) {
2269 ret = -1;
2270 BT_LOGE_STR("Cannot allocate memory for port_id component instance name.");
2271 goto error;
2272 }
2273
2274 trace_range = g_new0(struct trace_range, 1);
2275 if (!trace_range) {
2276 ret = -1;
2277 BT_LOGE_STR("Cannot allocate memory for trace_range structure.");
2278 goto error;
2279 }
2280 trace_range->intersection_range_begin_ns = begin;
2281 trace_range->intersection_range_end_ns = end;
2282
2283 stream_info = bt_value_array_borrow_element_by_index_const(
2284 stream_infos, stream_idx);
2285 if (!stream_info || !bt_value_is_map(stream_info)) {
2286 ret = -1;
2287 BT_LOGE_STR("Cannot retrieve stream informations from trace in query result.");
2288 goto error;
2289 }
2290
2291 port_name = bt_value_map_borrow_entry_value_const(stream_info, "port-name");
2292 if (!port_name || !bt_value_is_string(port_name)) {
2293 ret = -1;
2294 BT_LOGE_STR("Cannot retrieve port name in query result.");
2295 goto error;
2296 }
2297
2298 port_id->port_name = g_strdup(bt_value_string_get(port_name));
2299 if (!port_id->port_name) {
2300 ret = -1;
2301 BT_LOGE_STR("Cannot allocate memory for port_id port_name.");
2302 goto error;
2303 }
2304
2305 BT_LOGD("Inserting stream intersection ");
2306
2307 g_hash_table_insert(ctx->intersections, port_id, trace_range);
2308
2309 port_id = NULL;
2310 trace_range = NULL;
2311 }
2312 }
2313
2314 goto end;
2315
2316 error:
2317 fprintf(stderr, "%s%sCannot determine stream intersection of trace at path \'%s\'.%s\n",
2318 bt_common_color_bold(),
2319 bt_common_color_fg_yellow(),
2320 path ? path : "(unknown)",
2321 bt_common_color_reset());
2322 end:
2323 bt_value_put_ref(query_result);
2324 g_free(port_id);
2325 g_free(trace_range);
2326 return ret;
2327 }
2328
2329 static
2330 int cmd_run_ctx_create_components_from_config_components(
2331 struct cmd_run_ctx *ctx, GPtrArray *cfg_components)
2332 {
2333 size_t i;
2334 const void *comp_cls = NULL;
2335 const void *comp = NULL;
2336 int ret = 0;
2337
2338 for (i = 0; i < cfg_components->len; i++) {
2339 struct bt_config_component *cfg_comp =
2340 g_ptr_array_index(cfg_components, i);
2341 GQuark quark;
2342
2343 switch (cfg_comp->type) {
2344 case BT_COMPONENT_CLASS_TYPE_SOURCE:
2345 comp_cls = find_source_component_class(
2346 cfg_comp->plugin_name->str,
2347 cfg_comp->comp_cls_name->str);
2348 break;
2349 case BT_COMPONENT_CLASS_TYPE_FILTER:
2350 comp_cls = find_filter_component_class(
2351 cfg_comp->plugin_name->str,
2352 cfg_comp->comp_cls_name->str);
2353 break;
2354 case BT_COMPONENT_CLASS_TYPE_SINK:
2355 comp_cls = find_sink_component_class(
2356 cfg_comp->plugin_name->str,
2357 cfg_comp->comp_cls_name->str);
2358 break;
2359 default:
2360 abort();
2361 }
2362
2363 if (!comp_cls) {
2364 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
2365 "comp-cls-name=\"%s\", comp-cls-type=%d",
2366 cfg_comp->plugin_name->str,
2367 cfg_comp->comp_cls_name->str,
2368 cfg_comp->type);
2369 fprintf(stderr, "%s%sCannot find component class %s",
2370 bt_common_color_bold(),
2371 bt_common_color_fg_red(),
2372 bt_common_color_reset());
2373 print_plugin_comp_cls_opt(stderr,
2374 cfg_comp->plugin_name->str,
2375 cfg_comp->comp_cls_name->str,
2376 cfg_comp->type);
2377 fprintf(stderr, "\n");
2378 goto error;
2379 }
2380
2381 BT_ASSERT(cfg_comp->log_level >= BT_LOG_VERBOSE);
2382
2383 switch (cfg_comp->type) {
2384 case BT_COMPONENT_CLASS_TYPE_SOURCE:
2385 ret = bt_graph_add_source_component(ctx->graph,
2386 comp_cls, cfg_comp->instance_name->str,
2387 cfg_comp->params, cfg_comp->log_level,
2388 (void *) &comp);
2389 break;
2390 case BT_COMPONENT_CLASS_TYPE_FILTER:
2391 ret = bt_graph_add_filter_component(ctx->graph,
2392 comp_cls, cfg_comp->instance_name->str,
2393 cfg_comp->params, cfg_comp->log_level,
2394 (void *) &comp);
2395 break;
2396 case BT_COMPONENT_CLASS_TYPE_SINK:
2397 ret = bt_graph_add_sink_component(ctx->graph,
2398 comp_cls, cfg_comp->instance_name->str,
2399 cfg_comp->params, cfg_comp->log_level,
2400 (void *) &comp);
2401 break;
2402 default:
2403 abort();
2404 }
2405
2406 if (ret) {
2407 BT_LOGE("Cannot create component: plugin-name=\"%s\", "
2408 "comp-cls-name=\"%s\", comp-cls-type=%d, "
2409 "comp-name=\"%s\"",
2410 cfg_comp->plugin_name->str,
2411 cfg_comp->comp_cls_name->str,
2412 cfg_comp->type, cfg_comp->instance_name->str);
2413 fprintf(stderr, "%s%sCannot create component `%s`%s\n",
2414 bt_common_color_bold(),
2415 bt_common_color_fg_red(),
2416 cfg_comp->instance_name->str,
2417 bt_common_color_reset());
2418 goto error;
2419 }
2420
2421 if (ctx->stream_intersection_mode &&
2422 cfg_comp->type == BT_COMPONENT_CLASS_TYPE_SOURCE) {
2423 ret = set_stream_intersections(ctx, cfg_comp, comp_cls);
2424 if (ret) {
2425 goto error;
2426 }
2427 }
2428
2429 BT_LOGI("Created and inserted component: comp-addr=%p, comp-name=\"%s\"",
2430 comp, cfg_comp->instance_name->str);
2431 quark = g_quark_from_string(cfg_comp->instance_name->str);
2432 BT_ASSERT(quark > 0);
2433
2434 switch (cfg_comp->type) {
2435 case BT_COMPONENT_CLASS_TYPE_SOURCE:
2436 g_hash_table_insert(ctx->src_components,
2437 GUINT_TO_POINTER(quark), (void *) comp);
2438 break;
2439 case BT_COMPONENT_CLASS_TYPE_FILTER:
2440 g_hash_table_insert(ctx->flt_components,
2441 GUINT_TO_POINTER(quark), (void *) comp);
2442 break;
2443 case BT_COMPONENT_CLASS_TYPE_SINK:
2444 g_hash_table_insert(ctx->sink_components,
2445 GUINT_TO_POINTER(quark), (void *) comp);
2446 break;
2447 default:
2448 abort();
2449 }
2450
2451 comp = NULL;
2452 BT_OBJECT_PUT_REF_AND_RESET(comp_cls);
2453 }
2454
2455 goto end;
2456
2457 error:
2458 ret = -1;
2459
2460 end:
2461 bt_object_put_ref(comp);
2462 bt_object_put_ref(comp_cls);
2463 return ret;
2464 }
2465
2466 static
2467 int cmd_run_ctx_create_components(struct cmd_run_ctx *ctx)
2468 {
2469 int ret = 0;
2470
2471 /*
2472 * Make sure that, during this phase, our graph's "port added"
2473 * listener does not connect ports while we are creating the
2474 * components because we have a special, initial phase for
2475 * this.
2476 */
2477 ctx->connect_ports = false;
2478
2479 ret = cmd_run_ctx_create_components_from_config_components(
2480 ctx, ctx->cfg->cmd_data.run.sources);
2481 if (ret) {
2482 ret = -1;
2483 goto end;
2484 }
2485
2486 ret = cmd_run_ctx_create_components_from_config_components(
2487 ctx, ctx->cfg->cmd_data.run.filters);
2488 if (ret) {
2489 ret = -1;
2490 goto end;
2491 }
2492
2493 ret = cmd_run_ctx_create_components_from_config_components(
2494 ctx, ctx->cfg->cmd_data.run.sinks);
2495 if (ret) {
2496 ret = -1;
2497 goto end;
2498 }
2499
2500 end:
2501 return ret;
2502 }
2503
2504 typedef uint64_t (*output_port_count_func_t)(const void *);
2505 typedef const bt_port_output *(*borrow_output_port_by_index_func_t)(
2506 const void *, uint64_t);
2507
2508 static
2509 int cmd_run_ctx_connect_comp_ports(struct cmd_run_ctx *ctx,
2510 void *comp, output_port_count_func_t port_count_fn,
2511 borrow_output_port_by_index_func_t port_by_index_fn)
2512 {
2513 int ret = 0;
2514 uint64_t count;
2515 uint64_t i;
2516
2517 count = port_count_fn(comp);
2518
2519 for (i = 0; i < count; i++) {
2520 const bt_port_output *upstream_port = port_by_index_fn(comp, i);
2521
2522 BT_ASSERT(upstream_port);
2523 ret = cmd_run_ctx_connect_upstream_port(ctx, upstream_port);
2524 if (ret) {
2525 goto end;
2526 }
2527 }
2528
2529 end:
2530 return ret;
2531 }
2532
2533 static
2534 int cmd_run_ctx_connect_ports(struct cmd_run_ctx *ctx)
2535 {
2536 int ret = 0;
2537 GHashTableIter iter;
2538 gpointer g_name_quark, g_comp;
2539
2540 ctx->connect_ports = true;
2541 g_hash_table_iter_init(&iter, ctx->src_components);
2542
2543 while (g_hash_table_iter_next(&iter, &g_name_quark, &g_comp)) {
2544 ret = cmd_run_ctx_connect_comp_ports(ctx, g_comp,
2545 (output_port_count_func_t)
2546 bt_component_source_get_output_port_count,
2547 (borrow_output_port_by_index_func_t)
2548 bt_component_source_borrow_output_port_by_index_const);
2549 if (ret) {
2550 goto end;
2551 }
2552 }
2553
2554 g_hash_table_iter_init(&iter, ctx->flt_components);
2555
2556 while (g_hash_table_iter_next(&iter, &g_name_quark, &g_comp)) {
2557 ret = cmd_run_ctx_connect_comp_ports(ctx, g_comp,
2558 (output_port_count_func_t)
2559 bt_component_filter_get_output_port_count,
2560 (borrow_output_port_by_index_func_t)
2561 bt_component_filter_borrow_output_port_by_index_const);
2562 if (ret) {
2563 goto end;
2564 }
2565 }
2566
2567 end:
2568 return ret;
2569 }
2570
2571 static inline
2572 const char *bt_graph_status_str(bt_graph_status status)
2573 {
2574 switch (status) {
2575 case BT_GRAPH_STATUS_OK:
2576 return "BT_GRAPH_STATUS_OK";
2577 case BT_GRAPH_STATUS_END:
2578 return "BT_GRAPH_STATUS_END";
2579 case BT_GRAPH_STATUS_AGAIN:
2580 return "BT_GRAPH_STATUS_AGAIN";
2581 case BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION:
2582 return "BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION";
2583 case BT_GRAPH_STATUS_CANCELED:
2584 return "BT_GRAPH_STATUS_CANCELED";
2585 case BT_GRAPH_STATUS_ERROR:
2586 return "BT_GRAPH_STATUS_ERROR";
2587 case BT_GRAPH_STATUS_NOMEM:
2588 return "BT_GRAPH_STATUS_NOMEM";
2589 default:
2590 return "(unknown)";
2591 }
2592 }
2593
2594 static
2595 int cmd_run(struct bt_config *cfg)
2596 {
2597 int ret = 0;
2598 struct cmd_run_ctx ctx = { 0 };
2599
2600 /* Initialize the command's context and the graph object */
2601 if (cmd_run_ctx_init(&ctx, cfg)) {
2602 BT_LOGE_STR("Cannot initialize the command's context.");
2603 fprintf(stderr, "Cannot initialize the command's context\n");
2604 goto error;
2605 }
2606
2607 if (canceled) {
2608 BT_LOGI_STR("Canceled by user before creating components.");
2609 goto error;
2610 }
2611
2612 BT_LOGI_STR("Creating components.");
2613
2614 /* Create the requested component instances */
2615 if (cmd_run_ctx_create_components(&ctx)) {
2616 BT_LOGE_STR("Cannot create components.");
2617 fprintf(stderr, "Cannot create components\n");
2618 goto error;
2619 }
2620
2621 if (canceled) {
2622 BT_LOGI_STR("Canceled by user before connecting components.");
2623 goto error;
2624 }
2625
2626 BT_LOGI_STR("Connecting components.");
2627
2628 /* Connect the initially visible component ports */
2629 if (cmd_run_ctx_connect_ports(&ctx)) {
2630 BT_LOGE_STR("Cannot connect initial component ports.");
2631 fprintf(stderr, "Cannot connect initial component ports\n");
2632 goto error;
2633 }
2634
2635 if (canceled) {
2636 BT_LOGI_STR("Canceled by user before running the graph.");
2637 goto error;
2638 }
2639
2640 BT_LOGI_STR("Running the graph.");
2641
2642 /* Run the graph */
2643 while (true) {
2644 bt_graph_status graph_status = bt_graph_run(ctx.graph);
2645
2646 /*
2647 * Reset console in case something messed with console
2648 * codes during the graph's execution.
2649 */
2650 printf("%s", bt_common_color_reset());
2651 fflush(stdout);
2652 fprintf(stderr, "%s", bt_common_color_reset());
2653 BT_LOGV("bt_graph_run() returned: status=%s",
2654 bt_graph_status_str(graph_status));
2655
2656 switch (graph_status) {
2657 case BT_GRAPH_STATUS_OK:
2658 break;
2659 case BT_GRAPH_STATUS_CANCELED:
2660 BT_LOGI_STR("Graph was canceled by user.");
2661 goto error;
2662 case BT_GRAPH_STATUS_AGAIN:
2663 if (bt_graph_is_canceled(ctx.graph)) {
2664 BT_LOGI_STR("Graph was canceled by user.");
2665 goto error;
2666 }
2667
2668 if (cfg->cmd_data.run.retry_duration_us > 0) {
2669 BT_LOGV("Got BT_GRAPH_STATUS_AGAIN: sleeping: "
2670 "time-us=%" PRIu64,
2671 cfg->cmd_data.run.retry_duration_us);
2672
2673 if (usleep(cfg->cmd_data.run.retry_duration_us)) {
2674 if (bt_graph_is_canceled(ctx.graph)) {
2675 BT_LOGI_STR("Graph was canceled by user.");
2676 goto error;
2677 }
2678 }
2679 }
2680 break;
2681 case BT_GRAPH_STATUS_END:
2682 goto end;
2683 default:
2684 BT_LOGE_STR("Graph failed to complete successfully");
2685 fprintf(stderr, "Graph failed to complete successfully\n");
2686 goto error;
2687 }
2688 }
2689
2690 goto end;
2691
2692 error:
2693 if (ret == 0) {
2694 ret = -1;
2695 }
2696
2697 end:
2698 cmd_run_ctx_destroy(&ctx);
2699 return ret;
2700 }
2701
2702 static
2703 void warn_command_name_and_directory_clash(struct bt_config *cfg)
2704 {
2705 const char *env_clash;
2706
2707 if (!cfg->command_name) {
2708 return;
2709 }
2710
2711 env_clash = getenv(ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH);
2712 if (env_clash && strcmp(env_clash, "0") == 0) {
2713 return;
2714 }
2715
2716 if (g_file_test(cfg->command_name,
2717 G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) {
2718 fprintf(stderr, "\nNOTE: The `%s` command was executed. If you meant to convert a\n",
2719 cfg->command_name);
2720 fprintf(stderr, "trace located in the local `%s` directory, please use:\n",
2721 cfg->command_name);
2722 fprintf(stderr, "\n");
2723 fprintf(stderr, " babeltrace2 convert %s [OPTIONS]\n",
2724 cfg->command_name);
2725 }
2726 }
2727
2728 static
2729 void init_log_level(void)
2730 {
2731 bt_cli_log_level = bt_log_get_level_from_env(ENV_BABELTRACE_CLI_LOG_LEVEL);
2732 }
2733
2734 static
2735 void set_auto_log_levels(struct bt_config *cfg)
2736 {
2737 const char **env_var_name;
2738
2739 /*
2740 * Override the configuration's default log level if
2741 * BABELTRACE_VERBOSE or BABELTRACE_DEBUG environment variables
2742 * are found for backward compatibility with legacy Babetrace 1.
2743 */
2744 if (getenv("BABELTRACE_DEBUG") &&
2745 strcmp(getenv("BABELTRACE_DEBUG"), "1") == 0) {
2746 cfg->log_level = BT_LOG_VERBOSE;
2747 } else if (getenv("BABELTRACE_VERBOSE") &&
2748 strcmp(getenv("BABELTRACE_VERBOSE"), "1") == 0) {
2749 cfg->log_level = BT_LOG_INFO;
2750 }
2751
2752 /*
2753 * Set log levels according to --debug or --verbose. For
2754 * backward compatibility, --debug is more verbose than
2755 * --verbose. So:
2756 *
2757 * --verbose: INFO log level
2758 * --debug: VERBOSE log level (includes DEBUG, which is
2759 * is less verbose than VERBOSE in the internal
2760 * logging framework)
2761 */
2762 if (!getenv("BABELTRACE_LOGGING_GLOBAL_LEVEL")) {
2763 if (cfg->verbose) {
2764 bt_logging_set_global_level(BT_LOG_INFO);
2765 } else if (cfg->debug) {
2766 bt_logging_set_global_level(BT_LOG_VERBOSE);
2767 } else {
2768 /*
2769 * Set library's default log level if not
2770 * explicitly specified.
2771 */
2772 bt_logging_set_global_level(cfg->log_level);
2773 }
2774 }
2775
2776 if (!getenv(ENV_BABELTRACE_CLI_LOG_LEVEL)) {
2777 if (cfg->verbose) {
2778 bt_cli_log_level = BT_LOG_INFO;
2779 } else if (cfg->debug) {
2780 bt_cli_log_level = BT_LOG_VERBOSE;
2781 } else {
2782 /*
2783 * Set CLI's default log level if not explicitly
2784 * specified.
2785 */
2786 bt_cli_log_level = cfg->log_level;
2787 }
2788 }
2789
2790 env_var_name = log_level_env_var_names;
2791
2792 while (*env_var_name) {
2793 if (!getenv(*env_var_name)) {
2794 if (cfg->verbose) {
2795 g_setenv(*env_var_name, "I", 1);
2796 } else if (cfg->debug) {
2797 g_setenv(*env_var_name, "V", 1);
2798 } else {
2799 char val[2] = { 0 };
2800
2801 /*
2802 * Set module's default log level if not
2803 * explicitly specified.
2804 */
2805 val[0] = bt_log_get_letter_from_level(
2806 cfg->log_level);
2807 g_setenv(*env_var_name, val, 1);
2808 }
2809 }
2810
2811 env_var_name++;
2812 }
2813 }
2814
2815 int main(int argc, const char **argv)
2816 {
2817 int ret;
2818 int retcode;
2819 struct bt_config *cfg;
2820
2821 init_log_level();
2822 set_signal_handler();
2823 init_static_data();
2824 cfg = bt_config_cli_args_create_with_default(argc, argv, &retcode);
2825
2826 if (retcode < 0) {
2827 /* Quit without errors; typically usage/version */
2828 retcode = 0;
2829 BT_LOGI_STR("Quitting without errors.");
2830 goto end;
2831 }
2832
2833 if (retcode > 0) {
2834 BT_LOGE("Command-line error: retcode=%d", retcode);
2835 goto end;
2836 }
2837
2838 if (!cfg) {
2839 BT_LOGE_STR("Failed to create a valid Babeltrace configuration.");
2840 fprintf(stderr, "Failed to create Babeltrace configuration\n");
2841 retcode = 1;
2842 goto end;
2843 }
2844
2845 set_auto_log_levels(cfg);
2846 print_cfg(cfg);
2847
2848 if (cfg->command_needs_plugins) {
2849 ret = load_all_plugins(cfg->plugin_paths);
2850 if (ret) {
2851 BT_LOGE("Failed to load plugins: ret=%d", ret);
2852 retcode = 1;
2853 goto end;
2854 }
2855 }
2856
2857 BT_LOGI("Executing command: cmd=%d, command-name=\"%s\"",
2858 cfg->command, cfg->command_name);
2859
2860 switch (cfg->command) {
2861 case BT_CONFIG_COMMAND_RUN:
2862 ret = cmd_run(cfg);
2863 break;
2864 case BT_CONFIG_COMMAND_LIST_PLUGINS:
2865 ret = cmd_list_plugins(cfg);
2866 break;
2867 case BT_CONFIG_COMMAND_HELP:
2868 ret = cmd_help(cfg);
2869 break;
2870 case BT_CONFIG_COMMAND_QUERY:
2871 ret = cmd_query(cfg);
2872 break;
2873 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
2874 ret = cmd_print_ctf_metadata(cfg);
2875 break;
2876 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
2877 ret = cmd_print_lttng_live_sessions(cfg);
2878 break;
2879 default:
2880 BT_LOGF("Invalid/unknown command: cmd=%d", cfg->command);
2881 abort();
2882 }
2883
2884 BT_LOGI("Command completed: cmd=%d, command-name=\"%s\", ret=%d",
2885 cfg->command, cfg->command_name, ret);
2886 warn_command_name_and_directory_clash(cfg);
2887 retcode = ret ? 1 : 0;
2888
2889 end:
2890 BT_OBJECT_PUT_REF_AND_RESET(cfg);
2891 fini_static_data();
2892 return retcode;
2893 }
BabelTrace - Trace Format Babel Tower
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