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c32fa47751a0574116d0ab5a34c360a6cd2570cf
[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 <string.h>
33 #include <stdio.h>
34 #include <glib.h>
35 #include <inttypes.h>
36 #include <unistd.h>
37 #include <signal.h>
38 #include "babeltrace2-cfg.h"
39 #include "babeltrace2-cfg-cli-args.h"
40 #include "babeltrace2-cfg-cli-args-default.h"
41 #include "babeltrace2-log-level.h"
42 #include "babeltrace2-plugins.h"
43 #include "babeltrace2-query.h"
44
45 #define ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH "BABELTRACE_CLI_WARN_COMMAND_NAME_DIRECTORY_CLASH"
46 #define NSEC_PER_SEC 1000000000LL
47
48 /* Application's interrupter (owned by this) */
49 static bt_interrupter *the_interrupter;
50
51 #ifdef __MINGW32__
52
53 #include <windows.h>
54
55 static
56 BOOL WINAPI signal_handler(DWORD signal) {
57 if (the_interrupter) {
58 bt_interrupter_set(the_interrupter);
59 }
60
61 return TRUE;
62 }
63
64 static
65 void set_signal_handler(void)
66 {
67 if (!SetConsoleCtrlHandler(signal_handler, TRUE)) {
68 BT_LOGE("Failed to set the Ctrl+C handler.");
69 }
70 }
71
72 #else /* __MINGW32__ */
73
74 static
75 void signal_handler(int signum)
76 {
77 if (signum != SIGINT) {
78 return;
79 }
80
81 if (the_interrupter) {
82 bt_interrupter_set(the_interrupter);
83 }
84 }
85
86 static
87 void set_signal_handler(void)
88 {
89 struct sigaction new_action, old_action;
90
91 new_action.sa_handler = signal_handler;
92 sigemptyset(&new_action.sa_mask);
93 new_action.sa_flags = 0;
94 sigaction(SIGINT, NULL, &old_action);
95
96 if (old_action.sa_handler != SIG_IGN) {
97 sigaction(SIGINT, &new_action, NULL);
98 }
99 }
100
101 #endif /* __MINGW32__ */
102
103 static
104 int query(struct bt_config *cfg, const bt_component_class *comp_cls,
105 const char *obj, const bt_value *params,
106 const bt_value **user_result, const char **fail_reason)
107 {
108 return cli_query(comp_cls, obj, params, cfg->log_level,
109 the_interrupter, user_result, fail_reason);
110 }
111
112 typedef const void *(*plugin_borrow_comp_cls_func_t)(
113 const bt_plugin *, const char *);
114
115 static
116 const void *find_component_class_from_plugin(const char *plugin_name,
117 const char *comp_class_name,
118 plugin_borrow_comp_cls_func_t plugin_borrow_comp_cls_func)
119 {
120 const void *comp_class = NULL;
121 const bt_plugin *plugin;
122
123 BT_LOGI("Finding component class: plugin-name=\"%s\", "
124 "comp-cls-name=\"%s\"", plugin_name, comp_class_name);
125
126 plugin = find_loaded_plugin(plugin_name);
127 if (!plugin) {
128 goto end;
129 }
130
131 comp_class = plugin_borrow_comp_cls_func(plugin, comp_class_name);
132 bt_object_get_ref(comp_class);
133 BT_PLUGIN_PUT_REF_AND_RESET(plugin);
134
135 end:
136 if (comp_class) {
137 BT_LOGI("Found component class: plugin-name=\"%s\", "
138 "comp-cls-name=\"%s\"", plugin_name, comp_class_name);
139 } else {
140 BT_LOGI("Cannot find source component class: "
141 "plugin-name=\"%s\", comp-cls-name=\"%s\"",
142 plugin_name, comp_class_name);
143 }
144
145 return comp_class;
146 }
147
148 static
149 const bt_component_class_source *find_source_component_class(
150 const char *plugin_name, const char *comp_class_name)
151 {
152 return (const void *) find_component_class_from_plugin(
153 plugin_name, comp_class_name,
154 (plugin_borrow_comp_cls_func_t)
155 bt_plugin_borrow_source_component_class_by_name_const);
156 }
157
158 static
159 const bt_component_class_filter *find_filter_component_class(
160 const char *plugin_name, const char *comp_class_name)
161 {
162 return (const void *) find_component_class_from_plugin(
163 plugin_name, comp_class_name,
164 (plugin_borrow_comp_cls_func_t)
165 bt_plugin_borrow_filter_component_class_by_name_const);
166 }
167
168 static
169 const bt_component_class_sink *find_sink_component_class(
170 const char *plugin_name, const char *comp_class_name)
171 {
172 return (const void *) find_component_class_from_plugin(plugin_name,
173 comp_class_name,
174 (plugin_borrow_comp_cls_func_t)
175 bt_plugin_borrow_sink_component_class_by_name_const);
176 }
177
178 static
179 const bt_component_class *find_component_class(const char *plugin_name,
180 const char *comp_class_name,
181 bt_component_class_type comp_class_type)
182 {
183 const bt_component_class *comp_cls = NULL;
184
185 switch (comp_class_type) {
186 case BT_COMPONENT_CLASS_TYPE_SOURCE:
187 comp_cls = bt_component_class_source_as_component_class_const(find_source_component_class(plugin_name, comp_class_name));
188 break;
189 case BT_COMPONENT_CLASS_TYPE_FILTER:
190 comp_cls = bt_component_class_filter_as_component_class_const(find_filter_component_class(plugin_name, comp_class_name));
191 break;
192 case BT_COMPONENT_CLASS_TYPE_SINK:
193 comp_cls = bt_component_class_sink_as_component_class_const(find_sink_component_class(plugin_name, comp_class_name));
194 break;
195 default:
196 abort();
197 }
198
199 return comp_cls;
200 }
201
202 static
203 void print_indent(FILE *fp, size_t indent)
204 {
205 size_t i;
206
207 for (i = 0; i < indent; i++) {
208 fprintf(fp, " ");
209 }
210 }
211
212 static
213 const char *component_type_str(bt_component_class_type type)
214 {
215 switch (type) {
216 case BT_COMPONENT_CLASS_TYPE_SOURCE:
217 return "source";
218 case BT_COMPONENT_CLASS_TYPE_SINK:
219 return "sink";
220 case BT_COMPONENT_CLASS_TYPE_FILTER:
221 return "filter";
222 default:
223 return "(unknown)";
224 }
225 }
226
227 static
228 void print_plugin_comp_cls_opt(FILE *fh, const char *plugin_name,
229 const char *comp_cls_name, bt_component_class_type type)
230 {
231 GString *shell_plugin_name = NULL;
232 GString *shell_comp_cls_name = NULL;
233
234 if (plugin_name) {
235 shell_plugin_name = bt_common_shell_quote(plugin_name, false);
236 if (!shell_plugin_name) {
237 goto end;
238 }
239 }
240
241 shell_comp_cls_name = bt_common_shell_quote(comp_cls_name, false);
242 if (!shell_comp_cls_name) {
243 goto end;
244 }
245
246 fprintf(fh, "'%s%s%s%s",
247 bt_common_color_bold(),
248 bt_common_color_fg_cyan(),
249 component_type_str(type),
250 bt_common_color_fg_default());
251
252 if (shell_plugin_name) {
253 fprintf(fh, ".%s%s%s",
254 bt_common_color_fg_blue(),
255 shell_plugin_name->str,
256 bt_common_color_fg_default());
257 }
258
259 fprintf(fh, ".%s%s%s'",
260 bt_common_color_fg_yellow(),
261 shell_comp_cls_name->str,
262 bt_common_color_reset());
263
264 end:
265 if (shell_plugin_name) {
266 g_string_free(shell_plugin_name, TRUE);
267 }
268
269 if (shell_comp_cls_name) {
270 g_string_free(shell_comp_cls_name, TRUE);
271 }
272 }
273
274 static
275 void print_value(FILE *, const bt_value *, size_t);
276
277 static
278 void print_value_rec(FILE *, const bt_value *, size_t);
279
280 struct print_map_value_data {
281 size_t indent;
282 FILE *fp;
283 };
284
285 static
286 bt_bool print_map_value(const char *key, const bt_value *object,
287 void *data)
288 {
289 struct print_map_value_data *print_map_value_data = data;
290
291 print_indent(print_map_value_data->fp, print_map_value_data->indent);
292 fprintf(print_map_value_data->fp, "%s: ", key);
293 BT_ASSERT(object);
294
295 if (bt_value_is_array(object) &&
296 bt_value_array_is_empty(object)) {
297 fprintf(print_map_value_data->fp, "[ ]\n");
298 return true;
299 }
300
301 if (bt_value_is_map(object) &&
302 bt_value_map_is_empty(object)) {
303 fprintf(print_map_value_data->fp, "{ }\n");
304 return true;
305 }
306
307 if (bt_value_is_array(object) ||
308 bt_value_is_map(object)) {
309 fprintf(print_map_value_data->fp, "\n");
310 }
311
312 print_value_rec(print_map_value_data->fp, object,
313 print_map_value_data->indent + 2);
314 return BT_TRUE;
315 }
316
317 static
318 void print_value_rec(FILE *fp, const bt_value *value, size_t indent)
319 {
320 bt_bool bool_val;
321 int64_t int_val;
322 uint64_t uint_val;
323 double dbl_val;
324 const char *str_val;
325 int size;
326 int i;
327
328 if (!value) {
329 return;
330 }
331
332 switch (bt_value_get_type(value)) {
333 case BT_VALUE_TYPE_NULL:
334 fprintf(fp, "%snull%s\n", bt_common_color_bold(),
335 bt_common_color_reset());
336 break;
337 case BT_VALUE_TYPE_BOOL:
338 bool_val = bt_value_bool_get(value);
339 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
340 bt_common_color_fg_cyan(), bool_val ? "yes" : "no",
341 bt_common_color_reset());
342 break;
343 case BT_VALUE_TYPE_UNSIGNED_INTEGER:
344 uint_val = bt_value_integer_unsigned_get(value);
345 fprintf(fp, "%s%s%" PRIu64 "%s\n", bt_common_color_bold(),
346 bt_common_color_fg_red(), uint_val,
347 bt_common_color_reset());
348 break;
349 case BT_VALUE_TYPE_SIGNED_INTEGER:
350 int_val = bt_value_integer_signed_get(value);
351 fprintf(fp, "%s%s%" PRId64 "%s\n", bt_common_color_bold(),
352 bt_common_color_fg_red(), int_val,
353 bt_common_color_reset());
354 break;
355 case BT_VALUE_TYPE_REAL:
356 dbl_val = bt_value_real_get(value);
357 fprintf(fp, "%s%s%lf%s\n", bt_common_color_bold(),
358 bt_common_color_fg_red(), dbl_val,
359 bt_common_color_reset());
360 break;
361 case BT_VALUE_TYPE_STRING:
362 str_val = bt_value_string_get(value);
363 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
364 bt_common_color_fg_green(), str_val,
365 bt_common_color_reset());
366 break;
367 case BT_VALUE_TYPE_ARRAY:
368 size = bt_value_array_get_length(value);
369 if (size < 0) {
370 goto error;
371 }
372
373 if (size == 0) {
374 print_indent(fp, indent);
375 fprintf(fp, "[ ]\n");
376 break;
377 }
378
379 for (i = 0; i < size; i++) {
380 const bt_value *element =
381 bt_value_array_borrow_element_by_index_const(
382 value, i);
383
384 if (!element) {
385 goto error;
386 }
387 print_indent(fp, indent);
388 fprintf(fp, "- ");
389
390 if (bt_value_is_array(element) &&
391 bt_value_array_is_empty(element)) {
392 fprintf(fp, "[ ]\n");
393 continue;
394 }
395
396 if (bt_value_is_map(element) &&
397 bt_value_map_is_empty(element)) {
398 fprintf(fp, "{ }\n");
399 continue;
400 }
401
402 if (bt_value_is_array(element) ||
403 bt_value_is_map(element)) {
404 fprintf(fp, "\n");
405 }
406
407 print_value_rec(fp, element, indent + 2);
408 }
409 break;
410 case BT_VALUE_TYPE_MAP:
411 {
412 struct print_map_value_data data = {
413 .indent = indent,
414 .fp = fp,
415 };
416
417 if (bt_value_map_is_empty(value)) {
418 print_indent(fp, indent);
419 fprintf(fp, "{ }\n");
420 break;
421 }
422
423 bt_value_map_foreach_entry_const(value, print_map_value, &data);
424 break;
425 }
426 default:
427 abort();
428 }
429 return;
430
431 error:
432 BT_LOGE("Error printing value of type %s.",
433 bt_common_value_type_string(bt_value_get_type(value)));
434 }
435
436 static
437 void print_value(FILE *fp, const bt_value *value, size_t indent)
438 {
439 if (!bt_value_is_array(value) && !bt_value_is_map(value)) {
440 print_indent(fp, indent);
441 }
442
443 print_value_rec(fp, value, indent);
444 }
445
446 static
447 void print_bt_config_component(struct bt_config_component *bt_config_component)
448 {
449 fprintf(stderr, " ");
450 print_plugin_comp_cls_opt(stderr, bt_config_component->plugin_name->str,
451 bt_config_component->comp_cls_name->str,
452 bt_config_component->type);
453 fprintf(stderr, ":\n");
454
455 if (bt_config_component->instance_name->len > 0) {
456 fprintf(stderr, " Name: %s\n",
457 bt_config_component->instance_name->str);
458 }
459
460 fprintf(stderr, " Parameters:\n");
461 print_value(stderr, bt_config_component->params, 8);
462 }
463
464 static
465 void print_bt_config_components(GPtrArray *array)
466 {
467 size_t i;
468
469 for (i = 0; i < array->len; i++) {
470 struct bt_config_component *cfg_component =
471 bt_config_get_component(array, i);
472 print_bt_config_component(cfg_component);
473 BT_OBJECT_PUT_REF_AND_RESET(cfg_component);
474 }
475 }
476
477 static
478 void print_plugin_paths(const bt_value *plugin_paths)
479 {
480 fprintf(stderr, " Plugin paths:\n");
481 print_value(stderr, plugin_paths, 4);
482 }
483
484 static
485 void print_cfg_run(struct bt_config *cfg)
486 {
487 size_t i;
488
489 print_plugin_paths(cfg->plugin_paths);
490 fprintf(stderr, " Source component instances:\n");
491 print_bt_config_components(cfg->cmd_data.run.sources);
492
493 if (cfg->cmd_data.run.filters->len > 0) {
494 fprintf(stderr, " Filter component instances:\n");
495 print_bt_config_components(cfg->cmd_data.run.filters);
496 }
497
498 fprintf(stderr, " Sink component instances:\n");
499 print_bt_config_components(cfg->cmd_data.run.sinks);
500 fprintf(stderr, " Connections:\n");
501
502 for (i = 0; i < cfg->cmd_data.run.connections->len; i++) {
503 struct bt_config_connection *cfg_connection =
504 g_ptr_array_index(cfg->cmd_data.run.connections,
505 i);
506
507 fprintf(stderr, " %s%s%s -> %s%s%s\n",
508 cfg_connection->upstream_comp_name->str,
509 cfg_connection->upstream_port_glob->len > 0 ? "." : "",
510 cfg_connection->upstream_port_glob->str,
511 cfg_connection->downstream_comp_name->str,
512 cfg_connection->downstream_port_glob->len > 0 ? "." : "",
513 cfg_connection->downstream_port_glob->str);
514 }
515 }
516
517 static
518 void print_cfg_list_plugins(struct bt_config *cfg)
519 {
520 print_plugin_paths(cfg->plugin_paths);
521 }
522
523 static
524 void print_cfg_help(struct bt_config *cfg)
525 {
526 print_plugin_paths(cfg->plugin_paths);
527 }
528
529 static
530 void print_cfg_print_ctf_metadata(struct bt_config *cfg)
531 {
532 print_plugin_paths(cfg->plugin_paths);
533 fprintf(stderr, " Path: %s\n",
534 cfg->cmd_data.print_ctf_metadata.path->str);
535 }
536
537 static
538 void print_cfg_print_lttng_live_sessions(struct bt_config *cfg)
539 {
540 print_plugin_paths(cfg->plugin_paths);
541 fprintf(stderr, " URL: %s\n",
542 cfg->cmd_data.print_lttng_live_sessions.url->str);
543 }
544
545 static
546 void print_cfg_query(struct bt_config *cfg)
547 {
548 print_plugin_paths(cfg->plugin_paths);
549 fprintf(stderr, " Object: `%s`\n", cfg->cmd_data.query.object->str);
550 fprintf(stderr, " Component class:\n");
551 print_bt_config_component(cfg->cmd_data.query.cfg_component);
552 }
553
554 static
555 void print_cfg(struct bt_config *cfg)
556 {
557 if (!BT_LOG_ON_INFO) {
558 return;
559 }
560
561 BT_LOGI_STR("CLI configuration:");
562
563 switch (cfg->command) {
564 case BT_CONFIG_COMMAND_RUN:
565 print_cfg_run(cfg);
566 break;
567 case BT_CONFIG_COMMAND_LIST_PLUGINS:
568 print_cfg_list_plugins(cfg);
569 break;
570 case BT_CONFIG_COMMAND_HELP:
571 print_cfg_help(cfg);
572 break;
573 case BT_CONFIG_COMMAND_QUERY:
574 print_cfg_query(cfg);
575 break;
576 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
577 print_cfg_print_ctf_metadata(cfg);
578 break;
579 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
580 print_cfg_print_lttng_live_sessions(cfg);
581 break;
582 default:
583 abort();
584 }
585 }
586
587 static
588 void print_plugin_info(const bt_plugin *plugin)
589 {
590 unsigned int major, minor, patch;
591 const char *extra;
592 bt_property_availability version_avail;
593 const char *plugin_name;
594 const char *path;
595 const char *author;
596 const char *license;
597 const char *plugin_description;
598
599 plugin_name = bt_plugin_get_name(plugin);
600 path = bt_plugin_get_path(plugin);
601 author = bt_plugin_get_author(plugin);
602 license = bt_plugin_get_license(plugin);
603 plugin_description = bt_plugin_get_description(plugin);
604 version_avail = bt_plugin_get_version(plugin, &major, &minor,
605 &patch, &extra);
606 printf("%s%s%s%s:\n", bt_common_color_bold(),
607 bt_common_color_fg_blue(), plugin_name,
608 bt_common_color_reset());
609 if (path) {
610 printf(" %sPath%s: %s\n", bt_common_color_bold(),
611 bt_common_color_reset(), path);
612 } else {
613 puts(" Built-in");
614 }
615
616 if (version_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) {
617 printf(" %sVersion%s: %u.%u.%u",
618 bt_common_color_bold(), bt_common_color_reset(),
619 major, minor, patch);
620
621 if (extra) {
622 printf("%s", extra);
623 }
624
625 printf("\n");
626 }
627
628 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
629 bt_common_color_reset(),
630 plugin_description ? plugin_description : "(None)");
631 printf(" %sAuthor%s: %s\n", bt_common_color_bold(),
632 bt_common_color_reset(), author ? author : "(Unknown)");
633 printf(" %sLicense%s: %s\n", bt_common_color_bold(),
634 bt_common_color_reset(),
635 license ? license : "(Unknown)");
636 }
637
638 static
639 int cmd_query(struct bt_config *cfg)
640 {
641 int ret = 0;
642 const bt_component_class *comp_cls = NULL;
643 const bt_value *results = NULL;
644 const char *fail_reason = NULL;
645
646 comp_cls = find_component_class(
647 cfg->cmd_data.query.cfg_component->plugin_name->str,
648 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
649 cfg->cmd_data.query.cfg_component->type);
650 if (!comp_cls) {
651 BT_CLI_LOGE_APPEND_CAUSE(
652 "Cannot find component class: plugin-name=\"%s\", "
653 "comp-cls-name=\"%s\", comp-cls-type=%d",
654 cfg->cmd_data.query.cfg_component->plugin_name->str,
655 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
656 cfg->cmd_data.query.cfg_component->type);
657 ret = -1;
658 goto end;
659 }
660
661 ret = query(cfg, comp_cls, cfg->cmd_data.query.object->str,
662 cfg->cmd_data.query.cfg_component->params,
663 &results, &fail_reason);
664 if (ret) {
665 goto failed;
666 }
667
668 print_value(stdout, results, 0);
669 goto end;
670
671 failed:
672 BT_CLI_LOGE_APPEND_CAUSE(
673 "Failed to query component class: %s: plugin-name=\"%s\", "
674 "comp-cls-name=\"%s\", comp-cls-type=%d "
675 "object=\"%s\"", fail_reason,
676 cfg->cmd_data.query.cfg_component->plugin_name->str,
677 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
678 cfg->cmd_data.query.cfg_component->type,
679 cfg->cmd_data.query.object->str);
680 ret = -1;
681
682 end:
683 bt_component_class_put_ref(comp_cls);
684 bt_value_put_ref(results);
685 return ret;
686 }
687
688 static
689 void print_component_class_help(const char *plugin_name,
690 const bt_component_class *comp_cls)
691 {
692 const char *comp_class_name =
693 bt_component_class_get_name(comp_cls);
694 const char *comp_class_description =
695 bt_component_class_get_description(comp_cls);
696 const char *comp_class_help =
697 bt_component_class_get_help(comp_cls);
698 bt_component_class_type type =
699 bt_component_class_get_type(comp_cls);
700
701 print_plugin_comp_cls_opt(stdout, plugin_name, comp_class_name, type);
702 printf("\n");
703 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
704 bt_common_color_reset(),
705 comp_class_description ? comp_class_description : "(None)");
706
707 if (comp_class_help) {
708 printf("\n%s\n", comp_class_help);
709 }
710 }
711
712 static
713 int cmd_help(struct bt_config *cfg)
714 {
715 int ret = 0;
716 const bt_plugin *plugin = NULL;
717 const bt_component_class *needed_comp_cls = NULL;
718
719 plugin = find_loaded_plugin(cfg->cmd_data.help.cfg_component->plugin_name->str);
720 if (!plugin) {
721 BT_CLI_LOGE_APPEND_CAUSE(
722 "Cannot find plugin: plugin-name=\"%s\"",
723 cfg->cmd_data.help.cfg_component->plugin_name->str);
724 ret = -1;
725 goto end;
726 }
727
728 print_plugin_info(plugin);
729 printf(" %sSource component classes%s: %d\n",
730 bt_common_color_bold(),
731 bt_common_color_reset(),
732 (int) bt_plugin_get_source_component_class_count(plugin));
733 printf(" %sFilter component classes%s: %d\n",
734 bt_common_color_bold(),
735 bt_common_color_reset(),
736 (int) bt_plugin_get_filter_component_class_count(plugin));
737 printf(" %sSink component classes%s: %d\n",
738 bt_common_color_bold(),
739 bt_common_color_reset(),
740 (int) bt_plugin_get_sink_component_class_count(plugin));
741
742 if (strlen(cfg->cmd_data.help.cfg_component->comp_cls_name->str) == 0) {
743 /* Plugin help only */
744 goto end;
745 }
746
747 needed_comp_cls = find_component_class(
748 cfg->cmd_data.help.cfg_component->plugin_name->str,
749 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
750 cfg->cmd_data.help.cfg_component->type);
751 if (!needed_comp_cls) {
752 BT_CLI_LOGE_APPEND_CAUSE(
753 "Cannot find component class: plugin-name=\"%s\", "
754 "comp-cls-name=\"%s\", comp-cls-type=%d",
755 cfg->cmd_data.help.cfg_component->plugin_name->str,
756 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
757 cfg->cmd_data.help.cfg_component->type);
758 ret = -1;
759 goto end;
760 }
761
762 printf("\n");
763 print_component_class_help(
764 cfg->cmd_data.help.cfg_component->plugin_name->str,
765 needed_comp_cls);
766
767 end:
768 bt_component_class_put_ref(needed_comp_cls);
769 bt_plugin_put_ref(plugin);
770 return ret;
771 }
772
773 typedef void *(* plugin_borrow_comp_cls_by_index_func_t)(const bt_plugin *,
774 uint64_t);
775 typedef const bt_component_class *(* spec_comp_cls_borrow_comp_cls_func_t)(
776 void *);
777
778 void cmd_list_plugins_print_component_classes(const bt_plugin *plugin,
779 const char *cc_type_name, uint64_t count,
780 plugin_borrow_comp_cls_by_index_func_t borrow_comp_cls_by_index_func,
781 spec_comp_cls_borrow_comp_cls_func_t spec_comp_cls_borrow_comp_cls_func)
782 {
783 uint64_t i;
784
785 if (count == 0) {
786 printf(" %s%s component classes%s: (none)\n",
787 bt_common_color_bold(),
788 cc_type_name,
789 bt_common_color_reset());
790 goto end;
791 } else {
792 printf(" %s%s component classes%s:\n",
793 bt_common_color_bold(),
794 cc_type_name,
795 bt_common_color_reset());
796 }
797
798 for (i = 0; i < count; i++) {
799 const bt_component_class *comp_class =
800 spec_comp_cls_borrow_comp_cls_func(
801 borrow_comp_cls_by_index_func(plugin, i));
802 const char *comp_class_name =
803 bt_component_class_get_name(comp_class);
804 const char *comp_class_description =
805 bt_component_class_get_description(comp_class);
806 bt_component_class_type type =
807 bt_component_class_get_type(comp_class);
808
809 printf(" ");
810 print_plugin_comp_cls_opt(stdout,
811 bt_plugin_get_name(plugin), comp_class_name,
812 type);
813
814 if (comp_class_description) {
815 printf(": %s", comp_class_description);
816 }
817
818 printf("\n");
819 }
820
821 end:
822 return;
823 }
824
825 static
826 int cmd_list_plugins(struct bt_config *cfg)
827 {
828 int ret = 0;
829 int plugins_count, component_classes_count = 0, i;
830
831 printf("From the following plugin paths:\n\n");
832 print_value(stdout, cfg->plugin_paths, 2);
833 printf("\n");
834 plugins_count = get_loaded_plugins_count();
835 if (plugins_count == 0) {
836 printf("No plugins found.\n");
837 goto end;
838 }
839
840 for (i = 0; i < plugins_count; i++) {
841 const bt_plugin *plugin = borrow_loaded_plugin(i);
842
843 component_classes_count +=
844 bt_plugin_get_source_component_class_count(plugin) +
845 bt_plugin_get_filter_component_class_count(plugin) +
846 bt_plugin_get_sink_component_class_count(plugin);
847 }
848
849 printf("Found %s%d%s component classes in %s%d%s plugins.\n",
850 bt_common_color_bold(),
851 component_classes_count,
852 bt_common_color_reset(),
853 bt_common_color_bold(),
854 plugins_count,
855 bt_common_color_reset());
856
857 for (i = 0; i < plugins_count; i++) {
858 const bt_plugin *plugin = borrow_loaded_plugin(i);
859
860 printf("\n");
861 print_plugin_info(plugin);
862 cmd_list_plugins_print_component_classes(plugin, "Source",
863 bt_plugin_get_source_component_class_count(plugin),
864 (plugin_borrow_comp_cls_by_index_func_t)
865 bt_plugin_borrow_source_component_class_by_index_const,
866 (spec_comp_cls_borrow_comp_cls_func_t)
867 bt_component_class_source_as_component_class);
868 cmd_list_plugins_print_component_classes(plugin, "Filter",
869 bt_plugin_get_filter_component_class_count(plugin),
870 (plugin_borrow_comp_cls_by_index_func_t)
871 bt_plugin_borrow_filter_component_class_by_index_const,
872 (spec_comp_cls_borrow_comp_cls_func_t)
873 bt_component_class_filter_as_component_class);
874 cmd_list_plugins_print_component_classes(plugin, "Sink",
875 bt_plugin_get_sink_component_class_count(plugin),
876 (plugin_borrow_comp_cls_by_index_func_t)
877 bt_plugin_borrow_sink_component_class_by_index_const,
878 (spec_comp_cls_borrow_comp_cls_func_t)
879 bt_component_class_sink_as_component_class);
880 }
881
882 end:
883 return ret;
884 }
885
886 static
887 int cmd_print_lttng_live_sessions(struct bt_config *cfg)
888 {
889 int ret = 0;
890 const bt_component_class *comp_cls = NULL;
891 const bt_value *results = NULL;
892 bt_value *params = NULL;
893 const bt_value *map = NULL;
894 const bt_value *v = NULL;
895 static const char * const plugin_name = "ctf";
896 static const char * const comp_cls_name = "lttng-live";
897 static const bt_component_class_type comp_cls_type =
898 BT_COMPONENT_CLASS_TYPE_SOURCE;
899 int64_t array_size, i;
900 const char *fail_reason = NULL;
901 FILE *out_stream = stdout;
902
903 BT_ASSERT(cfg->cmd_data.print_lttng_live_sessions.url);
904 comp_cls = find_component_class(plugin_name, comp_cls_name,
905 comp_cls_type);
906 if (!comp_cls) {
907 BT_CLI_LOGE_APPEND_CAUSE(
908 "Cannot find component class: plugin-name=\"%s\", "
909 "comp-cls-name=\"%s\", comp-cls-type=%d",
910 plugin_name, comp_cls_name,
911 BT_COMPONENT_CLASS_TYPE_SOURCE);
912 goto error;
913 }
914
915 params = bt_value_map_create();
916 if (!params) {
917 goto error;
918 }
919
920 ret = bt_value_map_insert_string_entry(params, "url",
921 cfg->cmd_data.print_lttng_live_sessions.url->str);
922 if (ret) {
923 goto error;
924 }
925
926 ret = query(cfg, comp_cls, "sessions", params,
927 &results, &fail_reason);
928 if (ret) {
929 goto failed;
930 }
931
932 BT_ASSERT(results);
933
934 if (!bt_value_is_array(results)) {
935 BT_CLI_LOGE_APPEND_CAUSE(
936 "Expecting an array for LTTng live `sessions` query.");
937 goto error;
938 }
939
940 if (cfg->cmd_data.print_lttng_live_sessions.output_path->len > 0) {
941 out_stream =
942 fopen(cfg->cmd_data.print_lttng_live_sessions.output_path->str,
943 "w");
944 if (!out_stream) {
945 ret = -1;
946 BT_LOGE_ERRNO("Cannot open file for writing",
947 ": path=\"%s\"",
948 cfg->cmd_data.print_lttng_live_sessions.output_path->str);
949 (void) BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(
950 "Babeltrace CLI",
951 "Cannot open file for writing: path=\"%s\"",
952 cfg->cmd_data.print_lttng_live_sessions.output_path->str);
953 goto end;
954 }
955 }
956
957 array_size = bt_value_array_get_length(results);
958 for (i = 0; i < array_size; i++) {
959 const char *url_text;
960 int64_t timer_us, streams, clients;
961
962 map = bt_value_array_borrow_element_by_index_const(results, i);
963 if (!map) {
964 BT_CLI_LOGE_APPEND_CAUSE("Unexpected empty array entry.");
965 goto error;
966 }
967 if (!bt_value_is_map(map)) {
968 BT_CLI_LOGE_APPEND_CAUSE("Unexpected entry type.");
969 goto error;
970 }
971
972 v = bt_value_map_borrow_entry_value_const(map, "url");
973 if (!v) {
974 BT_CLI_LOGE_APPEND_CAUSE("Missing `url` entry.");
975 goto error;
976 }
977 url_text = bt_value_string_get(v);
978 fprintf(out_stream, "%s", url_text);
979 v = bt_value_map_borrow_entry_value_const(map, "timer-us");
980 if (!v) {
981 BT_CLI_LOGE_APPEND_CAUSE("Missing `timer-us` entry.");
982 goto error;
983 }
984 timer_us = bt_value_integer_unsigned_get(v);
985 fprintf(out_stream, " (timer = %" PRIu64 ", ", timer_us);
986 v = bt_value_map_borrow_entry_value_const(map, "stream-count");
987 if (!v) {
988 BT_CLI_LOGE_APPEND_CAUSE(
989 "Missing `stream-count` entry.");
990 goto error;
991 }
992 streams = bt_value_integer_unsigned_get(v);
993 fprintf(out_stream, "%" PRIu64 " stream(s), ", streams);
994 v = bt_value_map_borrow_entry_value_const(map, "client-count");
995 if (!v) {
996 BT_CLI_LOGE_APPEND_CAUSE(
997 "Missing `client-count` entry.");
998 goto error;
999 }
1000 clients = bt_value_integer_unsigned_get(v);
1001 fprintf(out_stream, "%" PRIu64 " client(s) connected)\n", clients);
1002 }
1003
1004 goto end;
1005
1006 failed:
1007 BT_CLI_LOGE_APPEND_CAUSE("Failed to query `sessions` object: %s",
1008 fail_reason);
1009
1010 error:
1011 ret = -1;
1012
1013 end:
1014 bt_value_put_ref(results);
1015 bt_value_put_ref(params);
1016 bt_component_class_put_ref(comp_cls);
1017
1018 if (out_stream && out_stream != stdout) {
1019 int fclose_ret = fclose(out_stream);
1020
1021 if (fclose_ret) {
1022 BT_LOGE_ERRNO("Cannot close file stream",
1023 ": path=\"%s\"",
1024 cfg->cmd_data.print_lttng_live_sessions.output_path->str);
1025 }
1026 }
1027
1028 return ret;
1029 }
1030
1031 static
1032 int cmd_print_ctf_metadata(struct bt_config *cfg)
1033 {
1034 int ret = 0;
1035 const bt_component_class *comp_cls = NULL;
1036 const bt_value *results = NULL;
1037 bt_value *params = NULL;
1038 const bt_value *metadata_text_value = NULL;
1039 const char *metadata_text = NULL;
1040 static const char * const plugin_name = "ctf";
1041 static const char * const comp_cls_name = "fs";
1042 static const bt_component_class_type comp_cls_type =
1043 BT_COMPONENT_CLASS_TYPE_SOURCE;
1044 const char *fail_reason = NULL;
1045 FILE *out_stream = stdout;
1046
1047 BT_ASSERT(cfg->cmd_data.print_ctf_metadata.path);
1048 comp_cls = find_component_class(plugin_name, comp_cls_name,
1049 comp_cls_type);
1050 if (!comp_cls) {
1051 BT_CLI_LOGE_APPEND_CAUSE(
1052 "Cannot find component class: plugin-name=\"%s\", "
1053 "comp-cls-name=\"%s\", comp-cls-type=%d",
1054 plugin_name, comp_cls_name,
1055 BT_COMPONENT_CLASS_TYPE_SOURCE);
1056 ret = -1;
1057 goto end;
1058 }
1059
1060 params = bt_value_map_create();
1061 if (!params) {
1062 ret = -1;
1063 goto end;
1064 }
1065
1066 ret = bt_value_map_insert_string_entry(params, "path",
1067 cfg->cmd_data.print_ctf_metadata.path->str);
1068 if (ret) {
1069 ret = -1;
1070 goto end;
1071 }
1072
1073 ret = query(cfg, comp_cls, "metadata-info",
1074 params, &results, &fail_reason);
1075 if (ret) {
1076 goto failed;
1077 }
1078
1079 metadata_text_value = bt_value_map_borrow_entry_value_const(results,
1080 "text");
1081 if (!metadata_text_value) {
1082 BT_CLI_LOGE_APPEND_CAUSE(
1083 "Cannot find `text` string value in the resulting metadata info object.");
1084 ret = -1;
1085 goto end;
1086 }
1087
1088 metadata_text = bt_value_string_get(metadata_text_value);
1089
1090 if (cfg->cmd_data.print_ctf_metadata.output_path->len > 0) {
1091 out_stream =
1092 fopen(cfg->cmd_data.print_ctf_metadata.output_path->str,
1093 "w");
1094 if (!out_stream) {
1095 BT_LOGE_ERRNO("Cannot open file for writing",
1096 ": path=\"%s\"",
1097 cfg->cmd_data.print_ctf_metadata.output_path->str);
1098 (void) BT_CURRENT_THREAD_ERROR_APPEND_CAUSE_FROM_UNKNOWN(
1099 "Babeltrace CLI",
1100 "Cannot open file for writing: path=\"%s\"",
1101 cfg->cmd_data.print_ctf_metadata.output_path->str);
1102 ret = -1;
1103 goto end;
1104 }
1105 }
1106
1107 ret = fprintf(out_stream, "%s\n", metadata_text);
1108 if (ret < 0) {
1109 BT_CLI_LOGE_APPEND_CAUSE(
1110 "Cannot write whole metadata text to output stream: "
1111 "ret=%d", ret);
1112 goto end;
1113 }
1114
1115 ret = 0;
1116 goto end;
1117
1118 failed:
1119 ret = -1;
1120 BT_CLI_LOGE_APPEND_CAUSE(
1121 "Failed to query `metadata-info` object: %s", fail_reason);
1122
1123 end:
1124 bt_value_put_ref(results);
1125 bt_value_put_ref(params);
1126 bt_component_class_put_ref(comp_cls);
1127
1128 if (out_stream && out_stream != stdout) {
1129 int fclose_ret = fclose(out_stream);
1130
1131 if (fclose_ret) {
1132 BT_LOGE_ERRNO("Cannot close file stream",
1133 ": path=\"%s\"",
1134 cfg->cmd_data.print_ctf_metadata.output_path->str);
1135 }
1136 }
1137
1138 return ret;
1139 }
1140
1141 struct port_id {
1142 char *instance_name;
1143 char *port_name;
1144 };
1145
1146 struct trace_range {
1147 uint64_t intersection_range_begin_ns;
1148 uint64_t intersection_range_end_ns;
1149 };
1150
1151 static
1152 guint port_id_hash(gconstpointer v)
1153 {
1154 const struct port_id *id = v;
1155
1156 BT_ASSERT(id->instance_name);
1157 BT_ASSERT(id->port_name);
1158
1159 return g_str_hash(id->instance_name) ^ g_str_hash(id->port_name);
1160 }
1161
1162 static
1163 gboolean port_id_equal(gconstpointer v1, gconstpointer v2)
1164 {
1165 const struct port_id *id1 = v1;
1166 const struct port_id *id2 = v2;
1167
1168 return strcmp(id1->instance_name, id2->instance_name) == 0 &&
1169 strcmp(id1->port_name, id2->port_name) == 0;
1170 }
1171
1172 static
1173 void port_id_destroy(gpointer data)
1174 {
1175 struct port_id *id = data;
1176
1177 free(id->instance_name);
1178 free(id->port_name);
1179 free(id);
1180 }
1181
1182 static
1183 void trace_range_destroy(gpointer data)
1184 {
1185 free(data);
1186 }
1187
1188 struct cmd_run_ctx {
1189 /* Owned by this */
1190 GHashTable *src_components;
1191
1192 /* Owned by this */
1193 GHashTable *flt_components;
1194
1195 /* Owned by this */
1196 GHashTable *sink_components;
1197
1198 /* Owned by this */
1199 bt_graph *graph;
1200
1201 /* Weak */
1202 struct bt_config *cfg;
1203
1204 bool connect_ports;
1205
1206 bool stream_intersection_mode;
1207
1208 /*
1209 * Association of struct port_id -> struct trace_range.
1210 */
1211 GHashTable *intersections;
1212 };
1213
1214 /* Returns a timestamp of the form "(-)s.ns" */
1215 static
1216 char *s_from_ns(int64_t ns)
1217 {
1218 int ret;
1219 char *s_ret = NULL;
1220 bool is_negative;
1221 int64_t ts_sec_abs, ts_nsec_abs;
1222 int64_t ts_sec = ns / NSEC_PER_SEC;
1223 int64_t ts_nsec = ns % NSEC_PER_SEC;
1224
1225 if (ts_sec >= 0 && ts_nsec >= 0) {
1226 is_negative = false;
1227 ts_sec_abs = ts_sec;
1228 ts_nsec_abs = ts_nsec;
1229 } else if (ts_sec > 0 && ts_nsec < 0) {
1230 is_negative = false;
1231 ts_sec_abs = ts_sec - 1;
1232 ts_nsec_abs = NSEC_PER_SEC + ts_nsec;
1233 } else if (ts_sec == 0 && ts_nsec < 0) {
1234 is_negative = true;
1235 ts_sec_abs = ts_sec;
1236 ts_nsec_abs = -ts_nsec;
1237 } else if (ts_sec < 0 && ts_nsec > 0) {
1238 is_negative = true;
1239 ts_sec_abs = -(ts_sec + 1);
1240 ts_nsec_abs = NSEC_PER_SEC - ts_nsec;
1241 } else if (ts_sec < 0 && ts_nsec == 0) {
1242 is_negative = true;
1243 ts_sec_abs = -ts_sec;
1244 ts_nsec_abs = ts_nsec;
1245 } else { /* (ts_sec < 0 && ts_nsec < 0) */
1246 is_negative = true;
1247 ts_sec_abs = -ts_sec;
1248 ts_nsec_abs = -ts_nsec;
1249 }
1250
1251 ret = asprintf(&s_ret, "%s%" PRId64 ".%09" PRId64,
1252 is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs);
1253 if (ret < 0) {
1254 s_ret = NULL;
1255 }
1256 return s_ret;
1257 }
1258
1259 static
1260 int cmd_run_ctx_connect_upstream_port_to_downstream_component(
1261 struct cmd_run_ctx *ctx,
1262 const bt_component *upstream_comp,
1263 const bt_port_output *out_upstream_port,
1264 struct bt_config_connection *cfg_conn)
1265 {
1266 typedef uint64_t (*input_port_count_func_t)(void *);
1267 typedef const bt_port_input *(*borrow_input_port_by_index_func_t)(
1268 const void *, uint64_t);
1269 const bt_port *upstream_port =
1270 bt_port_output_as_port_const(out_upstream_port);
1271
1272 int ret = 0;
1273 GQuark downstreamp_comp_name_quark;
1274 void *downstream_comp;
1275 uint64_t downstream_port_count;
1276 uint64_t i;
1277 input_port_count_func_t port_count_fn;
1278 borrow_input_port_by_index_func_t port_by_index_fn;
1279 bt_graph_connect_ports_status connect_ports_status =
1280 BT_GRAPH_CONNECT_PORTS_STATUS_OK;
1281 bool insert_trimmer = false;
1282 bt_value *trimmer_params = NULL;
1283 char *intersection_begin = NULL;
1284 char *intersection_end = NULL;
1285 const bt_component_filter *trimmer = NULL;
1286 const bt_component_class_filter *trimmer_class = NULL;
1287 const bt_port_input *trimmer_input = NULL;
1288 const bt_port_output *trimmer_output = NULL;
1289
1290 if (ctx->intersections &&
1291 bt_component_get_class_type(upstream_comp) ==
1292 BT_COMPONENT_CLASS_TYPE_SOURCE) {
1293 struct trace_range *range;
1294 struct port_id port_id = {
1295 .instance_name = (char *) bt_component_get_name(upstream_comp),
1296 .port_name = (char *) bt_port_get_name(upstream_port)
1297 };
1298
1299 if (!port_id.instance_name || !port_id.port_name) {
1300 goto error;
1301 }
1302
1303 range = (struct trace_range *) g_hash_table_lookup(
1304 ctx->intersections, &port_id);
1305 if (range) {
1306 bt_value_map_insert_entry_status insert_status;
1307
1308 intersection_begin = s_from_ns(
1309 range->intersection_range_begin_ns);
1310 intersection_end = s_from_ns(
1311 range->intersection_range_end_ns);
1312 if (!intersection_begin || !intersection_end) {
1313 BT_CLI_LOGE_APPEND_CAUSE(
1314 "Cannot create trimmer argument timestamp string.");
1315 goto error;
1316 }
1317
1318 insert_trimmer = true;
1319 trimmer_params = bt_value_map_create();
1320 if (!trimmer_params) {
1321 goto error;
1322 }
1323
1324 insert_status = bt_value_map_insert_string_entry(
1325 trimmer_params, "begin", intersection_begin);
1326 if (insert_status < 0) {
1327 goto error;
1328 }
1329 insert_status = bt_value_map_insert_string_entry(
1330 trimmer_params,
1331 "end", intersection_end);
1332 if (insert_status < 0) {
1333 goto error;
1334 }
1335 }
1336
1337 trimmer_class = find_filter_component_class("utils", "trimmer");
1338 if (!trimmer_class) {
1339 goto error;
1340 }
1341 }
1342
1343 BT_LOGI("Connecting upstream port to the next available downstream port: "
1344 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1345 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1346 upstream_port, bt_port_get_name(upstream_port),
1347 cfg_conn->downstream_comp_name->str,
1348 cfg_conn->arg->str);
1349 downstreamp_comp_name_quark = g_quark_from_string(
1350 cfg_conn->downstream_comp_name->str);
1351 BT_ASSERT(downstreamp_comp_name_quark > 0);
1352 downstream_comp = g_hash_table_lookup(ctx->flt_components,
1353 GUINT_TO_POINTER(downstreamp_comp_name_quark));
1354 port_count_fn = (input_port_count_func_t)
1355 bt_component_filter_get_input_port_count;
1356 port_by_index_fn = (borrow_input_port_by_index_func_t)
1357 bt_component_filter_borrow_input_port_by_index_const;
1358
1359 if (!downstream_comp) {
1360 downstream_comp = g_hash_table_lookup(ctx->sink_components,
1361 GUINT_TO_POINTER(downstreamp_comp_name_quark));
1362 port_count_fn = (input_port_count_func_t)
1363 bt_component_sink_get_input_port_count;
1364 port_by_index_fn = (borrow_input_port_by_index_func_t)
1365 bt_component_sink_borrow_input_port_by_index_const;
1366 }
1367
1368 if (!downstream_comp) {
1369 BT_CLI_LOGE_APPEND_CAUSE("Cannot find downstream component: "
1370 "comp-name=\"%s\", conn-arg=\"%s\"",
1371 cfg_conn->downstream_comp_name->str,
1372 cfg_conn->arg->str);
1373 goto error;
1374 }
1375
1376 downstream_port_count = port_count_fn(downstream_comp);
1377
1378 for (i = 0; i < downstream_port_count; i++) {
1379 const bt_port_input *in_downstream_port =
1380 port_by_index_fn(downstream_comp, i);
1381 const bt_port *downstream_port =
1382 bt_port_input_as_port_const(in_downstream_port);
1383 const char *upstream_port_name;
1384 const char *downstream_port_name;
1385
1386 BT_ASSERT(downstream_port);
1387
1388 /* Skip port if it's already connected. */
1389 if (bt_port_is_connected(downstream_port)) {
1390 BT_LOGI("Skipping downstream port: already connected: "
1391 "port-addr=%p, port-name=\"%s\"",
1392 downstream_port,
1393 bt_port_get_name(downstream_port));
1394 continue;
1395 }
1396
1397 downstream_port_name = bt_port_get_name(downstream_port);
1398 BT_ASSERT(downstream_port_name);
1399 upstream_port_name = bt_port_get_name(upstream_port);
1400 BT_ASSERT(upstream_port_name);
1401
1402 if (!bt_common_star_glob_match(
1403 cfg_conn->downstream_port_glob->str, SIZE_MAX,
1404 downstream_port_name, SIZE_MAX)) {
1405 continue;
1406 }
1407
1408 if (insert_trimmer) {
1409 /*
1410 * In order to insert the trimmer between the
1411 * two components that were being connected, we
1412 * create a connection configuration entry which
1413 * describes a connection from the trimmer's
1414 * output to the original input that was being
1415 * connected.
1416 *
1417 * Hence, the creation of the trimmer will cause
1418 * the graph "new port" listener to establish
1419 * all downstream connections as its output port
1420 * is connected. We will then establish the
1421 * connection between the original upstream
1422 * source and the trimmer.
1423 */
1424 char *trimmer_name = NULL;
1425 bt_graph_add_component_status add_comp_status;
1426
1427 ret = asprintf(&trimmer_name,
1428 "stream-intersection-trimmer-%s",
1429 upstream_port_name);
1430 if (ret < 0) {
1431 goto error;
1432 }
1433 ret = 0;
1434
1435 ctx->connect_ports = false;
1436 add_comp_status = bt_graph_add_filter_component(
1437 ctx->graph, trimmer_class, trimmer_name,
1438 trimmer_params, ctx->cfg->log_level,
1439 &trimmer);
1440 free(trimmer_name);
1441 if (add_comp_status !=
1442 BT_GRAPH_ADD_COMPONENT_STATUS_OK) {
1443 goto error;
1444 }
1445 BT_ASSERT(trimmer);
1446
1447 trimmer_input =
1448 bt_component_filter_borrow_input_port_by_index_const(
1449 trimmer, 0);
1450 if (!trimmer_input) {
1451 goto error;
1452 }
1453 trimmer_output =
1454 bt_component_filter_borrow_output_port_by_index_const(
1455 trimmer, 0);
1456 if (!trimmer_output) {
1457 goto error;
1458 }
1459
1460 /*
1461 * Replace the current downstream port by the trimmer's
1462 * upstream port.
1463 */
1464 in_downstream_port = trimmer_input;
1465 downstream_port =
1466 bt_port_input_as_port_const(in_downstream_port);
1467 downstream_port_name = bt_port_get_name(
1468 downstream_port);
1469 BT_ASSERT(downstream_port_name);
1470 }
1471
1472 /* We have a winner! */
1473 connect_ports_status = bt_graph_connect_ports(ctx->graph,
1474 out_upstream_port, in_downstream_port, NULL);
1475 downstream_port = NULL;
1476 switch (connect_ports_status) {
1477 case BT_GRAPH_CONNECT_PORTS_STATUS_OK:
1478 break;
1479 default:
1480 BT_CLI_LOGE_APPEND_CAUSE(
1481 "Cannot create connection: graph refuses to connect ports: "
1482 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1483 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1484 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1485 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1486 "conn-arg=\"%s\"",
1487 upstream_comp, bt_component_get_name(upstream_comp),
1488 upstream_port, bt_port_get_name(upstream_port),
1489 downstream_comp, cfg_conn->downstream_comp_name->str,
1490 downstream_port, downstream_port_name,
1491 cfg_conn->arg->str);
1492 goto error;
1493 }
1494
1495 BT_LOGI("Connected component ports: "
1496 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1497 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1498 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1499 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1500 "conn-arg=\"%s\"",
1501 upstream_comp, bt_component_get_name(upstream_comp),
1502 upstream_port, bt_port_get_name(upstream_port),
1503 downstream_comp, cfg_conn->downstream_comp_name->str,
1504 downstream_port, downstream_port_name,
1505 cfg_conn->arg->str);
1506
1507 if (insert_trimmer) {
1508 /*
1509 * The first connection, from the source to the trimmer,
1510 * has been done. We now connect the trimmer to the
1511 * original downstream port.
1512 */
1513 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1514 ctx,
1515 bt_component_filter_as_component_const(trimmer),
1516 trimmer_output, cfg_conn);
1517 if (ret) {
1518 goto error;
1519 }
1520 ctx->connect_ports = true;
1521 }
1522
1523 /*
1524 * We found a matching downstream port: the search is
1525 * over.
1526 */
1527 goto end;
1528 }
1529
1530 /* No downstream port found */
1531 BT_CLI_LOGE_APPEND_CAUSE(
1532 "Cannot create connection: cannot find a matching downstream port for upstream port: "
1533 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1534 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1535 upstream_port, bt_port_get_name(upstream_port),
1536 cfg_conn->downstream_comp_name->str,
1537 cfg_conn->arg->str);
1538
1539 error:
1540 ret = -1;
1541
1542 end:
1543 free(intersection_begin);
1544 free(intersection_end);
1545 BT_VALUE_PUT_REF_AND_RESET(trimmer_params);
1546 BT_COMPONENT_CLASS_FILTER_PUT_REF_AND_RESET(trimmer_class);
1547 BT_COMPONENT_FILTER_PUT_REF_AND_RESET(trimmer);
1548 return ret;
1549 }
1550
1551 static
1552 int cmd_run_ctx_connect_upstream_port(struct cmd_run_ctx *ctx,
1553 const bt_port_output *upstream_port)
1554 {
1555 int ret = 0;
1556 const char *upstream_port_name;
1557 const char *upstream_comp_name;
1558 const bt_component *upstream_comp = NULL;
1559 size_t i;
1560
1561 BT_ASSERT(ctx);
1562 BT_ASSERT(upstream_port);
1563 upstream_port_name = bt_port_get_name(
1564 bt_port_output_as_port_const(upstream_port));
1565 BT_ASSERT(upstream_port_name);
1566 upstream_comp = bt_port_borrow_component_const(
1567 bt_port_output_as_port_const(upstream_port));
1568 BT_ASSERT(upstream_comp);
1569 upstream_comp_name = bt_component_get_name(upstream_comp);
1570 BT_ASSERT(upstream_comp_name);
1571 BT_LOGI("Connecting upstream port: comp-addr=%p, comp-name=\"%s\", "
1572 "port-addr=%p, port-name=\"%s\"",
1573 upstream_comp, upstream_comp_name,
1574 upstream_port, upstream_port_name);
1575
1576 for (i = 0; i < ctx->cfg->cmd_data.run.connections->len; i++) {
1577 struct bt_config_connection *cfg_conn =
1578 g_ptr_array_index(
1579 ctx->cfg->cmd_data.run.connections, i);
1580
1581 if (strcmp(cfg_conn->upstream_comp_name->str,
1582 upstream_comp_name)) {
1583 continue;
1584 }
1585
1586 if (!bt_common_star_glob_match(
1587 cfg_conn->upstream_port_glob->str,
1588 SIZE_MAX, upstream_port_name, SIZE_MAX)) {
1589 continue;
1590 }
1591
1592 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1593 ctx, upstream_comp, upstream_port, cfg_conn);
1594 if (ret) {
1595 BT_CLI_LOGE_APPEND_CAUSE(
1596 "Cannot connect upstream port: "
1597 "port-addr=%p, port-name=\"%s\"",
1598 upstream_port,
1599 upstream_port_name);
1600 goto error;
1601 }
1602 goto end;
1603 }
1604
1605 BT_CLI_LOGE_APPEND_CAUSE(
1606 "Cannot connect upstream port: port does not match any connection argument: "
1607 "port-addr=%p, port-name=\"%s\"", upstream_port,
1608 upstream_port_name);
1609
1610 error:
1611 ret = -1;
1612
1613 end:
1614 return ret;
1615 }
1616
1617 static
1618 bt_graph_listener_func_status
1619 graph_output_port_added_listener(struct cmd_run_ctx *ctx,
1620 const bt_port_output *out_port)
1621 {
1622 const bt_component *comp;
1623 const bt_port *port = bt_port_output_as_port_const(out_port);
1624 bt_graph_listener_func_status ret =
1625 BT_GRAPH_LISTENER_FUNC_STATUS_OK;
1626
1627 comp = bt_port_borrow_component_const(port);
1628 BT_LOGI("Port added to a graph's component: comp-addr=%p, "
1629 "comp-name=\"%s\", port-addr=%p, port-name=\"%s\"",
1630 comp, comp ? bt_component_get_name(comp) : "",
1631 port, bt_port_get_name(port));
1632
1633 if (!ctx->connect_ports) {
1634 goto end;
1635 }
1636
1637 BT_ASSERT(comp);
1638
1639 if (bt_port_is_connected(port)) {
1640 BT_LOGW_STR("Port is already connected.");
1641 goto end;
1642 }
1643
1644 if (cmd_run_ctx_connect_upstream_port(ctx, out_port)) {
1645 BT_CLI_LOGE_APPEND_CAUSE("Cannot connect upstream port.");
1646 ret = BT_GRAPH_LISTENER_FUNC_STATUS_ERROR;
1647 goto end;
1648 }
1649
1650 end:
1651 return ret;
1652 }
1653
1654 static
1655 bt_graph_listener_func_status graph_source_output_port_added_listener(
1656 const bt_component_source *component,
1657 const bt_port_output *port, void *data)
1658 {
1659 return graph_output_port_added_listener(data, port);
1660 }
1661
1662 static
1663 bt_graph_listener_func_status graph_filter_output_port_added_listener(
1664 const bt_component_filter *component,
1665 const bt_port_output *port, void *data)
1666 {
1667 return graph_output_port_added_listener(data, port);
1668 }
1669
1670 static
1671 void cmd_run_ctx_destroy(struct cmd_run_ctx *ctx)
1672 {
1673 if (!ctx) {
1674 return;
1675 }
1676
1677 if (ctx->src_components) {
1678 g_hash_table_destroy(ctx->src_components);
1679 ctx->src_components = NULL;
1680 }
1681
1682 if (ctx->flt_components) {
1683 g_hash_table_destroy(ctx->flt_components);
1684 ctx->flt_components = NULL;
1685 }
1686
1687 if (ctx->sink_components) {
1688 g_hash_table_destroy(ctx->sink_components);
1689 ctx->sink_components = NULL;
1690 }
1691
1692 if (ctx->intersections) {
1693 g_hash_table_destroy(ctx->intersections);
1694 ctx->intersections = NULL;
1695 }
1696
1697 BT_GRAPH_PUT_REF_AND_RESET(ctx->graph);
1698 ctx->cfg = NULL;
1699 }
1700
1701 static
1702 int add_descriptor_to_component_descriptor_set(
1703 bt_component_descriptor_set *comp_descr_set,
1704 const char *plugin_name, const char *comp_cls_name,
1705 bt_component_class_type comp_cls_type,
1706 const bt_value *params)
1707 {
1708 const bt_component_class *comp_cls;
1709 int status = 0;
1710
1711 comp_cls = find_component_class(plugin_name, comp_cls_name,
1712 comp_cls_type);
1713 if (!comp_cls) {
1714 BT_CLI_LOGE_APPEND_CAUSE(
1715 "Cannot find component class: plugin-name=\"%s\", "
1716 "comp-cls-name=\"%s\", comp-cls-type=%d",
1717 plugin_name, comp_cls_name, comp_cls_type);
1718 status = -1;
1719 goto end;
1720 }
1721
1722 status = bt_component_descriptor_set_add_descriptor(
1723 comp_descr_set, comp_cls, params);
1724 if (status != BT_COMPONENT_DESCRIPTOR_SET_ADD_DESCRIPTOR_STATUS_OK) {
1725 BT_CLI_LOGE_APPEND_CAUSE(
1726 "Cannot append descriptor to component descriptor set: "
1727 "status=%s", bt_common_func_status_string(status));
1728 goto end;
1729 }
1730
1731 end:
1732 bt_component_class_put_ref(comp_cls);
1733 return status;
1734 }
1735
1736 static
1737 int append_descriptors_from_bt_config_component_array(
1738 bt_component_descriptor_set *comp_descr_set,
1739 GPtrArray *component_configs)
1740 {
1741 int ret = 0;
1742 uint64_t i;
1743
1744 for (i = 0; i < component_configs->len; i++) {
1745 struct bt_config_component *cfg_comp =
1746 component_configs->pdata[i];
1747
1748 ret = add_descriptor_to_component_descriptor_set(
1749 comp_descr_set,
1750 cfg_comp->plugin_name->str,
1751 cfg_comp->comp_cls_name->str,
1752 cfg_comp->type, cfg_comp->params);
1753 if (ret) {
1754 goto end;
1755 }
1756 }
1757
1758 end:
1759 return ret;
1760 }
1761
1762 static
1763 bt_get_greatest_operative_mip_version_status get_greatest_operative_mip_version(
1764 struct bt_config *cfg, uint64_t *mip_version)
1765 {
1766 bt_get_greatest_operative_mip_version_status status =
1767 BT_GET_GREATEST_OPERATIVE_MIP_VERSION_STATUS_OK;
1768 bt_component_descriptor_set *comp_descr_set = NULL;
1769 int ret;
1770
1771 BT_ASSERT(cfg);
1772 BT_ASSERT(mip_version);
1773 comp_descr_set = bt_component_descriptor_set_create();
1774 if (!comp_descr_set) {
1775 BT_CLI_LOGE_APPEND_CAUSE(
1776 "Failed to create a component descriptor set object.");
1777 status = BT_GET_GREATEST_OPERATIVE_MIP_VERSION_STATUS_MEMORY_ERROR;
1778 goto end;
1779 }
1780
1781 ret = append_descriptors_from_bt_config_component_array(
1782 comp_descr_set, cfg->cmd_data.run.sources);
1783 if (ret) {
1784 status = BT_GET_GREATEST_OPERATIVE_MIP_VERSION_STATUS_ERROR;
1785 goto end;
1786 }
1787
1788 ret = append_descriptors_from_bt_config_component_array(
1789 comp_descr_set, cfg->cmd_data.run.filters);
1790 if (ret) {
1791 status = BT_GET_GREATEST_OPERATIVE_MIP_VERSION_STATUS_ERROR;
1792 goto end;
1793 }
1794
1795 ret = append_descriptors_from_bt_config_component_array(
1796 comp_descr_set, cfg->cmd_data.run.sinks);
1797 if (ret) {
1798 status = BT_GET_GREATEST_OPERATIVE_MIP_VERSION_STATUS_ERROR;
1799 goto end;
1800 }
1801
1802 if (cfg->cmd_data.run.stream_intersection_mode) {
1803 /*
1804 * Stream intersection mode adds `flt.utils.trimmer`
1805 * components; we need to include this type of component
1806 * in the component descriptor set to get the real
1807 * greatest operative MIP version.
1808 */
1809 ret = add_descriptor_to_component_descriptor_set(
1810 comp_descr_set, "utils", "trimmer",
1811 BT_COMPONENT_CLASS_TYPE_FILTER, NULL);
1812 if (ret) {
1813 status = BT_GET_GREATEST_OPERATIVE_MIP_VERSION_STATUS_ERROR;
1814 goto end;
1815 }
1816 }
1817
1818 status = bt_get_greatest_operative_mip_version(comp_descr_set,
1819 bt_cli_log_level, mip_version);
1820
1821 end:
1822 bt_component_descriptor_set_put_ref(comp_descr_set);
1823 return status;
1824 }
1825
1826 static
1827 int cmd_run_ctx_init(struct cmd_run_ctx *ctx, struct bt_config *cfg)
1828 {
1829 int ret = 0;
1830 bt_graph_add_listener_status add_listener_status;
1831 bt_get_greatest_operative_mip_version_status mip_version_status;
1832 uint64_t mip_version = UINT64_C(-1);
1833
1834 ctx->cfg = cfg;
1835 ctx->connect_ports = false;
1836 ctx->src_components = g_hash_table_new_full(g_direct_hash,
1837 g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref);
1838 if (!ctx->src_components) {
1839 goto error;
1840 }
1841
1842 ctx->flt_components = g_hash_table_new_full(g_direct_hash,
1843 g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref);
1844 if (!ctx->flt_components) {
1845 goto error;
1846 }
1847
1848 ctx->sink_components = g_hash_table_new_full(g_direct_hash,
1849 g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref);
1850 if (!ctx->sink_components) {
1851 goto error;
1852 }
1853
1854 if (cfg->cmd_data.run.stream_intersection_mode) {
1855 ctx->stream_intersection_mode = true;
1856 ctx->intersections = g_hash_table_new_full(port_id_hash,
1857 port_id_equal, port_id_destroy, trace_range_destroy);
1858 if (!ctx->intersections) {
1859 goto error;
1860 }
1861 }
1862
1863 /*
1864 * Get the greatest operative MIP version to use to configure
1865 * the graph to create.
1866 */
1867 mip_version_status = get_greatest_operative_mip_version(
1868 cfg, &mip_version);
1869 if (mip_version_status == BT_GET_GREATEST_OPERATIVE_MIP_VERSION_STATUS_NO_MATCH) {
1870 BT_CLI_LOGE_APPEND_CAUSE(
1871 "Failed to find an operative message interchange "
1872 "protocol version to use to create the `run` command's "
1873 "graph (components are not interoperable).");
1874 goto error;
1875 } else if (mip_version_status < 0) {
1876 BT_CLI_LOGE_APPEND_CAUSE(
1877 "Cannot find an operative message interchange "
1878 "protocol version to use to create the `run` command's "
1879 "graph: status=%s",
1880 bt_common_func_status_string(mip_version_status));
1881 goto error;
1882 }
1883
1884 BT_ASSERT(mip_version_status == BT_GET_GREATEST_OPERATIVE_MIP_VERSION_STATUS_OK);
1885 BT_LOGI("Found operative message interchange protocol version to "
1886 "configure the `run` command's graph: mip-version=%" PRIu64,
1887 mip_version);
1888 ctx->graph = bt_graph_create(mip_version);
1889 if (!ctx->graph) {
1890 goto error;
1891 }
1892
1893 bt_graph_add_interrupter(ctx->graph, the_interrupter);
1894 add_listener_status = bt_graph_add_source_component_output_port_added_listener(
1895 ctx->graph, graph_source_output_port_added_listener, NULL, ctx,
1896 NULL);
1897 if (add_listener_status != BT_GRAPH_ADD_LISTENER_STATUS_OK) {
1898 BT_CLI_LOGE_APPEND_CAUSE(
1899 "Cannot add \"port added\" listener to graph.");
1900 goto error;
1901 }
1902
1903 add_listener_status = bt_graph_add_filter_component_output_port_added_listener(
1904 ctx->graph, graph_filter_output_port_added_listener, NULL, ctx,
1905 NULL);
1906 if (add_listener_status != BT_GRAPH_ADD_LISTENER_STATUS_OK) {
1907 BT_CLI_LOGE_APPEND_CAUSE(
1908 "Cannot add \"port added\" listener to graph.");
1909 goto error;
1910 }
1911
1912 goto end;
1913
1914 error:
1915 cmd_run_ctx_destroy(ctx);
1916 ret = -1;
1917
1918 end:
1919 return ret;
1920 }
1921
1922 /*
1923 * Compute the intersection of all streams in the array `streams`, write it
1924 * in `range`.
1925 */
1926
1927 static
1928 int compute_stream_intersection(const bt_value *streams,
1929 struct trace_range *range)
1930 {
1931 unsigned int i;
1932 unsigned int stream_count;
1933 int ret;
1934
1935 BT_ASSERT(bt_value_get_type(streams) == BT_VALUE_TYPE_ARRAY);
1936
1937 stream_count = bt_value_array_get_length(streams);
1938
1939 BT_ASSERT(stream_count > 0);
1940
1941 range->intersection_range_begin_ns = 0;
1942 range->intersection_range_end_ns = UINT64_MAX;
1943
1944 for (i = 0; i < stream_count; i++) {
1945 int64_t begin_ns, end_ns;
1946 uint64_t begin_ns_u, end_ns_u;
1947 const bt_value *stream_value;
1948 const bt_value *range_ns_value;
1949 const bt_value *begin_value;
1950 const bt_value *end_value;
1951
1952 stream_value = bt_value_array_borrow_element_by_index_const(streams, i);
1953 if (bt_value_get_type(stream_value) != BT_VALUE_TYPE_MAP) {
1954 BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
1955 "expected streams array element to be a map, got %s.",
1956 bt_common_value_type_string(bt_value_get_type(stream_value)));
1957 goto error;
1958 }
1959
1960 range_ns_value = bt_value_map_borrow_entry_value_const(
1961 stream_value, "range-ns");
1962 if (!range_ns_value) {
1963 BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
1964 "missing expected `range-ns` key in stream map.");
1965 goto error;
1966 }
1967
1968 if (bt_value_get_type(range_ns_value) != BT_VALUE_TYPE_MAP) {
1969 BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
1970 "expected `range-ns` entry value of stream map to be a map, got %s.",
1971 bt_common_value_type_string(bt_value_get_type(range_ns_value)));
1972 goto error;
1973 }
1974
1975 begin_value = bt_value_map_borrow_entry_value_const(range_ns_value, "begin");
1976 if (!begin_value) {
1977 BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
1978 "missing expected `begin` key in range-ns map.");
1979 goto error;
1980 }
1981
1982 if (bt_value_get_type(begin_value) != BT_VALUE_TYPE_SIGNED_INTEGER) {
1983 BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
1984 "expected `begin` entry value of range-ns map to be a signed integer, got %s.",
1985 bt_common_value_type_string(bt_value_get_type(range_ns_value)));
1986 goto error;
1987 }
1988
1989 end_value = bt_value_map_borrow_entry_value_const(range_ns_value, "end");
1990 if (!end_value) {
1991 BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
1992 "missing expected `end` key in range-ns map.");
1993 goto error;
1994 }
1995
1996 if (bt_value_get_type(end_value) != BT_VALUE_TYPE_SIGNED_INTEGER) {
1997 BT_CLI_LOGE_APPEND_CAUSE("Unexpected format of `babeltrace.trace-info` query result: "
1998 "expected `end` entry value of range-ns map to be a signed integer, got %s.",
1999 bt_common_value_type_string(bt_value_get_type(range_ns_value)));
2000 goto error;
2001 }
2002
2003 begin_ns = bt_value_integer_signed_get(begin_value);
2004 end_ns = bt_value_integer_signed_get(end_value);
2005
2006 if (begin_ns < 0 || end_ns < 0 || end_ns < begin_ns) {
2007 BT_CLI_LOGE_APPEND_CAUSE(
2008 "Invalid stream range values: "
2009 "range-ns:begin=%" PRId64 ", "
2010 "range-ns:end=%" PRId64,
2011 begin_ns, end_ns);
2012 ret = -1;
2013 goto error;
2014 }
2015
2016 begin_ns_u = begin_ns;
2017 end_ns_u = end_ns;
2018
2019 range->intersection_range_begin_ns =
2020 MAX(range->intersection_range_begin_ns, begin_ns_u);
2021 range->intersection_range_end_ns =
2022 MIN(range->intersection_range_end_ns, end_ns_u);
2023 }
2024
2025 ret = 0;
2026 goto end;
2027 error:
2028 ret = -1;
2029
2030 end:
2031 return ret;
2032 }
2033
2034 static
2035 int set_stream_intersections(struct cmd_run_ctx *ctx,
2036 struct bt_config_component *cfg_comp,
2037 const bt_component_class_source *src_comp_cls)
2038 {
2039 int ret = 0;
2040 uint64_t trace_idx;
2041 int64_t trace_count;
2042 const bt_value *query_result = NULL;
2043 const bt_value *trace_info = NULL;
2044 const bt_value *stream_infos = NULL;
2045 const bt_value *stream_info = NULL;
2046 struct port_id *port_id = NULL;
2047 struct trace_range *stream_intersection = NULL;
2048 const char *fail_reason = NULL;
2049 const bt_component_class *comp_cls =
2050 bt_component_class_source_as_component_class_const(src_comp_cls);
2051
2052 ret = query(ctx->cfg, comp_cls, "babeltrace.trace-info",
2053 cfg_comp->params, &query_result,
2054 &fail_reason);
2055 if (ret) {
2056 BT_CLI_LOGE_APPEND_CAUSE("Component class does not support the `babeltrace.trace-info` query: %s: "
2057 "comp-class-name=\"%s\"", fail_reason,
2058 bt_component_class_get_name(comp_cls));
2059 ret = -1;
2060 goto end;
2061 }
2062
2063 BT_ASSERT(query_result);
2064
2065 if (!bt_value_is_array(query_result)) {
2066 BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-info` query: expecting result to be an array: "
2067 "component-class-name=%s, actual-type=%s",
2068 bt_component_class_get_name(comp_cls),
2069 bt_common_value_type_string(bt_value_get_type(query_result)));
2070 ret = -1;
2071 goto end;
2072 }
2073
2074 trace_count = bt_value_array_get_length(query_result);
2075 if (trace_count < 0) {
2076 BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-info` query: result is empty: "
2077 "component-class-name=%s", bt_component_class_get_name(comp_cls));
2078 ret = -1;
2079 goto end;
2080 }
2081
2082 for (trace_idx = 0; trace_idx < trace_count; trace_idx++) {
2083 uint64_t stream_idx;
2084 int64_t stream_count;
2085 struct trace_range trace_intersection;
2086
2087 trace_info = bt_value_array_borrow_element_by_index_const(
2088 query_result, trace_idx);
2089 BT_ASSERT(trace_info);
2090 if (!bt_value_is_map(trace_info)) {
2091 ret = -1;
2092 BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-info` query: expecting element to be a map: "
2093 "component-class-name=%s, actual-type=%s",
2094 bt_component_class_get_name(comp_cls),
2095 bt_common_value_type_string(bt_value_get_type(trace_info)));
2096 goto end;
2097 }
2098
2099 stream_infos = bt_value_map_borrow_entry_value_const(
2100 trace_info, "streams");
2101 if (!stream_infos) {
2102 ret = -1;
2103 BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-info` query: missing `streams` key in trace info map: "
2104 "component-class-name=%s",
2105 bt_component_class_get_name(comp_cls));
2106 goto end;
2107 }
2108
2109 if (!bt_value_is_array(stream_infos)) {
2110 ret = -1;
2111 BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-info` query: expecting `streams` entry of trace info map to be an array: "
2112 "component-class-name=%s, actual-type=%s",
2113 bt_component_class_get_name(comp_cls),
2114 bt_common_value_type_string(bt_value_get_type(stream_infos)));
2115 goto end;
2116 }
2117
2118 stream_count = bt_value_array_get_length(stream_infos);
2119 if (stream_count < 0) {
2120 ret = -1;
2121 BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-info` query: list of streams is empty: "
2122 "component-class-name=%s",
2123 bt_component_class_get_name(comp_cls));
2124 goto end;
2125 }
2126
2127 ret = compute_stream_intersection(stream_infos, &trace_intersection);
2128 if (ret != 0) {
2129 BT_CLI_LOGE_APPEND_CAUSE("Failed to compute trace streams intersection.");
2130 goto end;
2131 }
2132
2133 for (stream_idx = 0; stream_idx < stream_count; stream_idx++) {
2134 const bt_value *port_name;
2135
2136 port_id = g_new0(struct port_id, 1);
2137 if (!port_id) {
2138 ret = -1;
2139 BT_CLI_LOGE_APPEND_CAUSE(
2140 "Cannot allocate memory for port_id structure.");
2141 goto end;
2142 }
2143 port_id->instance_name = strdup(cfg_comp->instance_name->str);
2144 if (!port_id->instance_name) {
2145 ret = -1;
2146 BT_CLI_LOGE_APPEND_CAUSE(
2147 "Cannot allocate memory for port_id component instance name.");
2148 goto end;
2149 }
2150
2151 stream_intersection = g_new0(struct trace_range, 1);
2152 if (!stream_intersection) {
2153 ret = -1;
2154 BT_CLI_LOGE_APPEND_CAUSE(
2155 "Cannot allocate memory for trace_range structure.");
2156 goto end;
2157 }
2158
2159 *stream_intersection = trace_intersection;
2160
2161 stream_info = bt_value_array_borrow_element_by_index_const(
2162 stream_infos, stream_idx);
2163 BT_ASSERT(stream_info);
2164 if (!bt_value_is_map(stream_info)) {
2165 ret = -1;
2166 BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-info` query: "
2167 "expecting element of stream list to be a map: "
2168 "component-class-name=%s, actual-type=%s",
2169 bt_component_class_get_name(comp_cls),
2170 bt_common_value_type_string(bt_value_get_type(stream_info)));
2171 goto end;
2172 }
2173
2174 port_name = bt_value_map_borrow_entry_value_const(stream_info, "port-name");
2175 if (!port_name) {
2176 ret = -1;
2177 BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-info` query: "
2178 "missing `port-name` key in stream info map: "
2179 "component-class-name=%s",
2180 bt_component_class_get_name(comp_cls));
2181 goto end;
2182 }
2183
2184 if (!bt_value_is_string(port_name)) {
2185 ret = -1;
2186 BT_CLI_LOGE_APPEND_CAUSE("`babeltrace.trace-info` query: "
2187 "expecting `port-name` entry of stream info map to be a string: "
2188 "component-class-name=%s, actual-type=%s",
2189 bt_component_class_get_name(comp_cls),
2190 bt_common_value_type_string(bt_value_get_type(port_name)));
2191 goto end;
2192 }
2193
2194 port_id->port_name = g_strdup(bt_value_string_get(port_name));
2195 if (!port_id->port_name) {
2196 ret = -1;
2197 BT_CLI_LOGE_APPEND_CAUSE(
2198 "Cannot allocate memory for port_id port_name.");
2199 goto end;
2200 }
2201
2202 BT_LOGD("Inserting stream intersection ");
2203
2204 g_hash_table_insert(ctx->intersections, port_id, stream_intersection);
2205
2206 port_id = NULL;
2207 stream_intersection = NULL;
2208 }
2209 }
2210
2211 ret = 0;
2212
2213 end:
2214 bt_value_put_ref(query_result);
2215 g_free(port_id);
2216 g_free(stream_intersection);
2217 return ret;
2218 }
2219
2220 static
2221 int cmd_run_ctx_create_components_from_config_components(
2222 struct cmd_run_ctx *ctx, GPtrArray *cfg_components)
2223 {
2224 size_t i;
2225 const void *comp_cls = NULL;
2226 const void *comp = NULL;
2227 int ret = 0;
2228
2229 for (i = 0; i < cfg_components->len; i++) {
2230 struct bt_config_component *cfg_comp =
2231 g_ptr_array_index(cfg_components, i);
2232 GQuark quark;
2233
2234 switch (cfg_comp->type) {
2235 case BT_COMPONENT_CLASS_TYPE_SOURCE:
2236 comp_cls = find_source_component_class(
2237 cfg_comp->plugin_name->str,
2238 cfg_comp->comp_cls_name->str);
2239 break;
2240 case BT_COMPONENT_CLASS_TYPE_FILTER:
2241 comp_cls = find_filter_component_class(
2242 cfg_comp->plugin_name->str,
2243 cfg_comp->comp_cls_name->str);
2244 break;
2245 case BT_COMPONENT_CLASS_TYPE_SINK:
2246 comp_cls = find_sink_component_class(
2247 cfg_comp->plugin_name->str,
2248 cfg_comp->comp_cls_name->str);
2249 break;
2250 default:
2251 abort();
2252 }
2253
2254 if (!comp_cls) {
2255 BT_CLI_LOGE_APPEND_CAUSE(
2256 "Cannot find component class: plugin-name=\"%s\", "
2257 "comp-cls-name=\"%s\", comp-cls-type=%d",
2258 cfg_comp->plugin_name->str,
2259 cfg_comp->comp_cls_name->str,
2260 cfg_comp->type);
2261 goto error;
2262 }
2263
2264 BT_ASSERT(cfg_comp->log_level >= BT_LOG_TRACE);
2265
2266 switch (cfg_comp->type) {
2267 case BT_COMPONENT_CLASS_TYPE_SOURCE:
2268 ret = bt_graph_add_source_component(ctx->graph,
2269 comp_cls, cfg_comp->instance_name->str,
2270 cfg_comp->params, cfg_comp->log_level,
2271 (void *) &comp);
2272 break;
2273 case BT_COMPONENT_CLASS_TYPE_FILTER:
2274 ret = bt_graph_add_filter_component(ctx->graph,
2275 comp_cls, cfg_comp->instance_name->str,
2276 cfg_comp->params, cfg_comp->log_level,
2277 (void *) &comp);
2278 break;
2279 case BT_COMPONENT_CLASS_TYPE_SINK:
2280 ret = bt_graph_add_sink_component(ctx->graph,
2281 comp_cls, cfg_comp->instance_name->str,
2282 cfg_comp->params, cfg_comp->log_level,
2283 (void *) &comp);
2284 break;
2285 default:
2286 abort();
2287 }
2288
2289 if (ret) {
2290 BT_CLI_LOGE_APPEND_CAUSE(
2291 "Cannot create component: plugin-name=\"%s\", "
2292 "comp-cls-name=\"%s\", comp-cls-type=%d, "
2293 "comp-name=\"%s\"",
2294 cfg_comp->plugin_name->str,
2295 cfg_comp->comp_cls_name->str,
2296 cfg_comp->type, cfg_comp->instance_name->str);
2297 goto error;
2298 }
2299
2300 if (ctx->stream_intersection_mode &&
2301 cfg_comp->type == BT_COMPONENT_CLASS_TYPE_SOURCE) {
2302 ret = set_stream_intersections(ctx, cfg_comp, comp_cls);
2303 if (ret) {
2304 BT_CLI_LOGE_APPEND_CAUSE(
2305 "Cannot determine stream intersection of trace.");
2306 goto error;
2307 }
2308 }
2309
2310 BT_LOGI("Created and inserted component: comp-addr=%p, comp-name=\"%s\"",
2311 comp, cfg_comp->instance_name->str);
2312 quark = g_quark_from_string(cfg_comp->instance_name->str);
2313 BT_ASSERT(quark > 0);
2314
2315 switch (cfg_comp->type) {
2316 case BT_COMPONENT_CLASS_TYPE_SOURCE:
2317 g_hash_table_insert(ctx->src_components,
2318 GUINT_TO_POINTER(quark), (void *) comp);
2319 break;
2320 case BT_COMPONENT_CLASS_TYPE_FILTER:
2321 g_hash_table_insert(ctx->flt_components,
2322 GUINT_TO_POINTER(quark), (void *) comp);
2323 break;
2324 case BT_COMPONENT_CLASS_TYPE_SINK:
2325 g_hash_table_insert(ctx->sink_components,
2326 GUINT_TO_POINTER(quark), (void *) comp);
2327 break;
2328 default:
2329 abort();
2330 }
2331
2332 comp = NULL;
2333 BT_OBJECT_PUT_REF_AND_RESET(comp_cls);
2334 }
2335
2336 goto end;
2337
2338 error:
2339 ret = -1;
2340
2341 end:
2342 bt_object_put_ref(comp);
2343 bt_object_put_ref(comp_cls);
2344 return ret;
2345 }
2346
2347 static
2348 int cmd_run_ctx_create_components(struct cmd_run_ctx *ctx)
2349 {
2350 int ret = 0;
2351
2352 /*
2353 * Make sure that, during this phase, our graph's "port added"
2354 * listener does not connect ports while we are creating the
2355 * components because we have a special, initial phase for
2356 * this.
2357 */
2358 ctx->connect_ports = false;
2359
2360 ret = cmd_run_ctx_create_components_from_config_components(
2361 ctx, ctx->cfg->cmd_data.run.sources);
2362 if (ret) {
2363 ret = -1;
2364 goto end;
2365 }
2366
2367 ret = cmd_run_ctx_create_components_from_config_components(
2368 ctx, ctx->cfg->cmd_data.run.filters);
2369 if (ret) {
2370 ret = -1;
2371 goto end;
2372 }
2373
2374 ret = cmd_run_ctx_create_components_from_config_components(
2375 ctx, ctx->cfg->cmd_data.run.sinks);
2376 if (ret) {
2377 ret = -1;
2378 goto end;
2379 }
2380
2381 end:
2382 return ret;
2383 }
2384
2385 typedef uint64_t (*output_port_count_func_t)(const void *);
2386 typedef const bt_port_output *(*borrow_output_port_by_index_func_t)(
2387 const void *, uint64_t);
2388
2389 static
2390 int cmd_run_ctx_connect_comp_ports(struct cmd_run_ctx *ctx,
2391 void *comp, output_port_count_func_t port_count_fn,
2392 borrow_output_port_by_index_func_t port_by_index_fn)
2393 {
2394 int ret = 0;
2395 uint64_t count;
2396 uint64_t i;
2397
2398 count = port_count_fn(comp);
2399
2400 for (i = 0; i < count; i++) {
2401 const bt_port_output *upstream_port = port_by_index_fn(comp, i);
2402
2403 BT_ASSERT(upstream_port);
2404 ret = cmd_run_ctx_connect_upstream_port(ctx, upstream_port);
2405 if (ret) {
2406 goto end;
2407 }
2408 }
2409
2410 end:
2411 return ret;
2412 }
2413
2414 static
2415 int cmd_run_ctx_connect_ports(struct cmd_run_ctx *ctx)
2416 {
2417 int ret = 0;
2418 GHashTableIter iter;
2419 gpointer g_name_quark, g_comp;
2420
2421 ctx->connect_ports = true;
2422 g_hash_table_iter_init(&iter, ctx->src_components);
2423
2424 while (g_hash_table_iter_next(&iter, &g_name_quark, &g_comp)) {
2425 ret = cmd_run_ctx_connect_comp_ports(ctx, g_comp,
2426 (output_port_count_func_t)
2427 bt_component_source_get_output_port_count,
2428 (borrow_output_port_by_index_func_t)
2429 bt_component_source_borrow_output_port_by_index_const);
2430 if (ret) {
2431 goto end;
2432 }
2433 }
2434
2435 g_hash_table_iter_init(&iter, ctx->flt_components);
2436
2437 while (g_hash_table_iter_next(&iter, &g_name_quark, &g_comp)) {
2438 ret = cmd_run_ctx_connect_comp_ports(ctx, g_comp,
2439 (output_port_count_func_t)
2440 bt_component_filter_get_output_port_count,
2441 (borrow_output_port_by_index_func_t)
2442 bt_component_filter_borrow_output_port_by_index_const);
2443 if (ret) {
2444 goto end;
2445 }
2446 }
2447
2448 end:
2449 return ret;
2450 }
2451
2452 static
2453 int cmd_run(struct bt_config *cfg)
2454 {
2455 int ret = 0;
2456 struct cmd_run_ctx ctx = { 0 };
2457
2458 /* Initialize the command's context and the graph object */
2459 if (cmd_run_ctx_init(&ctx, cfg)) {
2460 BT_CLI_LOGE_APPEND_CAUSE(
2461 "Cannot initialize the command's context.");
2462 goto error;
2463 }
2464
2465 if (bt_interrupter_is_set(the_interrupter)) {
2466 BT_CLI_LOGW_APPEND_CAUSE(
2467 "Interrupted by user before creating components.");
2468 goto error;
2469 }
2470
2471 BT_LOGI_STR("Creating components.");
2472
2473 /* Create the requested component instances */
2474 if (cmd_run_ctx_create_components(&ctx)) {
2475 BT_CLI_LOGE_APPEND_CAUSE("Cannot create components.");
2476 goto error;
2477 }
2478
2479 if (bt_interrupter_is_set(the_interrupter)) {
2480 BT_CLI_LOGW_APPEND_CAUSE(
2481 "Interrupted by user before connecting components.");
2482 goto error;
2483 }
2484
2485 BT_LOGI_STR("Connecting components.");
2486
2487 /* Connect the initially visible component ports */
2488 if (cmd_run_ctx_connect_ports(&ctx)) {
2489 BT_CLI_LOGE_APPEND_CAUSE(
2490 "Cannot connect initial component ports.");
2491 goto error;
2492 }
2493
2494 BT_LOGI_STR("Running the graph.");
2495
2496 /* Run the graph */
2497 while (true) {
2498 bt_graph_run_status run_status = bt_graph_run(ctx.graph);
2499
2500 /*
2501 * Reset console in case something messed with console
2502 * codes during the graph's execution.
2503 */
2504 printf("%s", bt_common_color_reset());
2505 fflush(stdout);
2506 fprintf(stderr, "%s", bt_common_color_reset());
2507 BT_LOGT("bt_graph_run() returned: status=%s",
2508 bt_common_func_status_string(run_status));
2509
2510 switch (run_status) {
2511 case BT_GRAPH_RUN_STATUS_OK:
2512 break;
2513 case BT_GRAPH_RUN_STATUS_AGAIN:
2514 if (bt_interrupter_is_set(the_interrupter)) {
2515 BT_CLI_LOGW_APPEND_CAUSE(
2516 "Graph was interrupted by user.");
2517 goto error;
2518 }
2519
2520 if (cfg->cmd_data.run.retry_duration_us > 0) {
2521 BT_LOGT("Got BT_GRAPH_RUN_STATUS_AGAIN: sleeping: "
2522 "time-us=%" PRIu64,
2523 cfg->cmd_data.run.retry_duration_us);
2524
2525 if (usleep(cfg->cmd_data.run.retry_duration_us)) {
2526 if (bt_interrupter_is_set(the_interrupter)) {
2527 BT_CLI_LOGW_APPEND_CAUSE(
2528 "Graph was interrupted by user.");
2529 goto error;
2530 }
2531 }
2532 }
2533 break;
2534 case BT_GRAPH_RUN_STATUS_END:
2535 goto end;
2536 default:
2537 if (bt_interrupter_is_set(the_interrupter)) {
2538 BT_CLI_LOGW_APPEND_CAUSE(
2539 "Graph was interrupted by user and failed: "
2540 "status=%s",
2541 bt_common_func_status_string(run_status));
2542 goto error;
2543 }
2544
2545 BT_CLI_LOGE_APPEND_CAUSE(
2546 "Graph failed to complete successfully");
2547 goto error;
2548 }
2549 }
2550
2551 goto end;
2552
2553 error:
2554 if (ret == 0) {
2555 ret = -1;
2556 }
2557
2558 end:
2559 cmd_run_ctx_destroy(&ctx);
2560 return ret;
2561 }
2562
2563 static
2564 void warn_command_name_and_directory_clash(struct bt_config *cfg)
2565 {
2566 const char *env_clash;
2567
2568 if (!cfg->command_name) {
2569 return;
2570 }
2571
2572 env_clash = getenv(ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH);
2573 if (env_clash && strcmp(env_clash, "0") == 0) {
2574 return;
2575 }
2576
2577 if (g_file_test(cfg->command_name,
2578 G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) {
2579 _bt_log_write_d(_BT_LOG_SRCLOC_FUNCTION, __FILE__, __LINE__,
2580 BT_LOG_WARNING, BT_LOG_TAG,
2581 "The `%s` command was executed. "
2582 "If you meant to convert a trace located in "
2583 "the local `%s` directory, please use:\n\n"
2584 " babeltrace2 convert %s [OPTIONS]",
2585 cfg->command_name, cfg->command_name,
2586 cfg->command_name);
2587 }
2588 }
2589
2590 static
2591 void init_log_level(void)
2592 {
2593 bt_cli_log_level = bt_log_get_level_from_env(ENV_BABELTRACE_CLI_LOG_LEVEL);
2594 }
2595
2596 static
2597 void print_error_causes(void)
2598 {
2599 const bt_error *error = bt_current_thread_take_error();
2600 int64_t i;
2601 GString *folded = NULL;
2602 unsigned int columns;
2603
2604 if (!error || bt_error_get_cause_count(error) == 0) {
2605 fprintf(stderr, "%s%sUnknown command-line error.%s\n",
2606 bt_common_color_bold(), bt_common_color_fg_red(),
2607 bt_common_color_reset());
2608 goto end;
2609 }
2610
2611 /* Try to get terminal width to fold the error cause messages */
2612 if (bt_common_get_term_size(&columns, NULL) < 0) {
2613 /* Width not found: default to 80 */
2614 columns = 80;
2615 }
2616
2617 /*
2618 * This helps visually separate the error causes from the last
2619 * logging statement.
2620 */
2621 fprintf(stderr, "\n");
2622
2623 /* Reverse order: deepest (root) cause printed at the end */
2624 for (i = bt_error_get_cause_count(error) - 1; i >= 0; i--) {
2625 const bt_error_cause *cause =
2626 bt_error_borrow_cause_by_index(error, (uint64_t) i);
2627 const char *prefix_fmt =
2628 i == bt_error_get_cause_count(error) - 1 ?
2629 "%s%sERROR%s: " : "%s%sCAUSED BY%s ";
2630
2631 /* Print prefix */
2632 fprintf(stderr, prefix_fmt,
2633 bt_common_color_bold(), bt_common_color_fg_red(),
2634 bt_common_color_reset());
2635
2636 /* Print actor name */
2637 fprintf(stderr, "[");
2638 switch (bt_error_cause_get_actor_type(cause)) {
2639 case BT_ERROR_CAUSE_ACTOR_TYPE_UNKNOWN:
2640 fprintf(stderr, "%s%s%s",
2641 bt_common_color_bold(),
2642 bt_error_cause_get_module_name(cause),
2643 bt_common_color_reset());
2644 break;
2645 case BT_ERROR_CAUSE_ACTOR_TYPE_COMPONENT:
2646 fprintf(stderr, "%s%s%s: ",
2647 bt_common_color_bold(),
2648 bt_error_cause_component_actor_get_component_name(cause),
2649 bt_common_color_reset());
2650 print_plugin_comp_cls_opt(stderr,
2651 bt_error_cause_component_actor_get_plugin_name(cause),
2652 bt_error_cause_component_actor_get_component_class_name(cause),
2653 bt_error_cause_component_actor_get_component_class_type(cause));
2654 break;
2655 case BT_ERROR_CAUSE_ACTOR_TYPE_COMPONENT_CLASS:
2656 print_plugin_comp_cls_opt(stderr,
2657 bt_error_cause_component_class_actor_get_plugin_name(cause),
2658 bt_error_cause_component_class_actor_get_component_class_name(cause),
2659 bt_error_cause_component_class_actor_get_component_class_type(cause));
2660 break;
2661 case BT_ERROR_CAUSE_ACTOR_TYPE_MESSAGE_ITERATOR:
2662 fprintf(stderr, "%s%s%s (%s%s%s): ",
2663 bt_common_color_bold(),
2664 bt_error_cause_message_iterator_actor_get_component_name(cause),
2665 bt_common_color_reset(),
2666 bt_common_color_bold(),
2667 bt_error_cause_message_iterator_actor_get_component_output_port_name(cause),
2668 bt_common_color_reset());
2669 print_plugin_comp_cls_opt(stderr,
2670 bt_error_cause_message_iterator_actor_get_plugin_name(cause),
2671 bt_error_cause_message_iterator_actor_get_component_class_name(cause),
2672 bt_error_cause_message_iterator_actor_get_component_class_type(cause));
2673 break;
2674 default:
2675 abort();
2676 }
2677
2678 /* Print file name and line number */
2679 fprintf(stderr, "] (%s%s%s%s:%s%" PRIu64 "%s)\n",
2680 bt_common_color_bold(),
2681 bt_common_color_fg_magenta(),
2682 bt_error_cause_get_file_name(cause),
2683 bt_common_color_reset(),
2684 bt_common_color_fg_green(),
2685 bt_error_cause_get_line_number(cause),
2686 bt_common_color_reset());
2687
2688 /* Print message */
2689 folded = bt_common_fold(bt_error_cause_get_message(cause),
2690 columns, 2);
2691 if (!folded) {
2692 BT_LOGE_STR("Could not fold string.");
2693 fprintf(stderr, "%s\n",
2694 bt_error_cause_get_message(cause));
2695 continue;
2696 }
2697
2698 fprintf(stderr, "%s\n", folded->str);
2699 g_string_free(folded, TRUE);
2700 folded = NULL;
2701 }
2702
2703 end:
2704 BT_ASSERT(!folded);
2705
2706 if (error) {
2707 bt_error_release(error);
2708 }
2709 }
2710
2711 int main(int argc, const char **argv)
2712 {
2713 int ret;
2714 int retcode;
2715 struct bt_config *cfg = NULL;
2716
2717 init_log_level();
2718 set_signal_handler();
2719 init_loaded_plugins();
2720
2721 BT_ASSERT(!the_interrupter);
2722 the_interrupter = bt_interrupter_create();
2723 if (!the_interrupter) {
2724 BT_CLI_LOGE_APPEND_CAUSE("Failed to create an interrupter object.");
2725 retcode = 1;
2726 goto end;
2727 }
2728
2729 cfg = bt_config_cli_args_create_with_default(argc, argv, &retcode,
2730 the_interrupter);
2731
2732 if (retcode < 0) {
2733 /* Quit without errors; typically usage/version */
2734 retcode = 0;
2735 BT_LOGI_STR("Quitting without errors.");
2736 goto end;
2737 }
2738
2739 if (retcode > 0) {
2740 BT_CLI_LOGE_APPEND_CAUSE(
2741 "Command-line error: retcode=%d", retcode);
2742 goto end;
2743 }
2744
2745 if (!cfg) {
2746 BT_CLI_LOGE_APPEND_CAUSE(
2747 "Failed to create a valid Babeltrace CLI configuration.");
2748 retcode = 1;
2749 goto end;
2750 }
2751
2752 print_cfg(cfg);
2753
2754 if (cfg->command_needs_plugins) {
2755 ret = require_loaded_plugins(cfg->plugin_paths);
2756 if (ret) {
2757 BT_CLI_LOGE_APPEND_CAUSE(
2758 "Failed to load plugins: ret=%d", ret);
2759 retcode = 1;
2760 goto end;
2761 }
2762 }
2763
2764 BT_LOGI("Executing command: cmd=%d, command-name=\"%s\"",
2765 cfg->command, cfg->command_name);
2766
2767 switch (cfg->command) {
2768 case BT_CONFIG_COMMAND_RUN:
2769 ret = cmd_run(cfg);
2770 break;
2771 case BT_CONFIG_COMMAND_LIST_PLUGINS:
2772 ret = cmd_list_plugins(cfg);
2773 break;
2774 case BT_CONFIG_COMMAND_HELP:
2775 ret = cmd_help(cfg);
2776 break;
2777 case BT_CONFIG_COMMAND_QUERY:
2778 ret = cmd_query(cfg);
2779 break;
2780 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
2781 ret = cmd_print_ctf_metadata(cfg);
2782 break;
2783 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
2784 ret = cmd_print_lttng_live_sessions(cfg);
2785 break;
2786 default:
2787 BT_LOGF("Invalid/unknown command: cmd=%d", cfg->command);
2788 abort();
2789 }
2790
2791 BT_LOGI("Command completed: cmd=%d, command-name=\"%s\", ret=%d",
2792 cfg->command, cfg->command_name, ret);
2793 warn_command_name_and_directory_clash(cfg);
2794 retcode = ret ? 1 : 0;
2795
2796 end:
2797 BT_OBJECT_PUT_REF_AND_RESET(cfg);
2798 fini_loaded_plugins();
2799 bt_interrupter_put_ref(the_interrupter);
2800
2801 if (retcode != 0) {
2802 print_error_causes();
2803 }
2804
2805 /*
2806 * Clear current thread's error in case there is one to avoid a
2807 * memory leak.
2808 */
2809 bt_current_thread_clear_error();
2810 return retcode;
2811 }
BabelTrace - Trace Format Babel Tower
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