projects / babeltrace.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
lib: strictly type function return status enumerations
[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 NULL,
55 };
56
57 /* Application's processing graph (weak) */
58 static bt_graph *the_graph;
59 static bt_query_executor *the_query_executor;
60 static bool canceled = false;
61
62 GPtrArray *loaded_plugins;
63
64 #ifdef __MINGW32__
65
66 #include <windows.h>
67
68 static
69 BOOL WINAPI signal_handler(DWORD signal) {
70 if (the_graph) {
71 bt_graph_cancel(the_graph);
72 }
73
74 canceled = true;
75
76 return TRUE;
77 }
78
79 static
80 void set_signal_handler(void)
81 {
82 if (!SetConsoleCtrlHandler(signal_handler, TRUE)) {
83 BT_LOGE("Failed to set the Ctrl+C handler.");
84 }
85 }
86
87 #else /* __MINGW32__ */
88
89 static
90 void signal_handler(int signum)
91 {
92 if (signum != SIGINT) {
93 return;
94 }
95
96 if (the_graph) {
97 bt_graph_cancel(the_graph);
98 }
99
100 if (the_query_executor) {
101 bt_query_executor_cancel(the_query_executor);
102 }
103
104 canceled = true;
105 }
106
107 static
108 void set_signal_handler(void)
109 {
110 struct sigaction new_action, old_action;
111
112 new_action.sa_handler = signal_handler;
113 sigemptyset(&new_action.sa_mask);
114 new_action.sa_flags = 0;
115 sigaction(SIGINT, NULL, &old_action);
116
117 if (old_action.sa_handler != SIG_IGN) {
118 sigaction(SIGINT, &new_action, NULL);
119 }
120 }
121
122 #endif /* __MINGW32__ */
123
124 static
125 void init_static_data(void)
126 {
127 loaded_plugins = g_ptr_array_new_with_free_func(
128 (GDestroyNotify) bt_object_put_ref);
129 }
130
131 static
132 void fini_static_data(void)
133 {
134 g_ptr_array_free(loaded_plugins, TRUE);
135 }
136
137 static
138 int create_the_query_executor(void)
139 {
140 int ret = 0;
141
142 the_query_executor = bt_query_executor_create();
143 if (!the_query_executor) {
144 BT_LOGE_STR("Cannot create a query executor.");
145 ret = -1;
146 }
147
148 return ret;
149 }
150
151 static
152 void destroy_the_query_executor(void)
153 {
154 BT_QUERY_EXECUTOR_PUT_REF_AND_RESET(the_query_executor);
155 }
156
157 static
158 int query(struct bt_config *cfg, const bt_component_class *comp_cls,
159 const char *obj, const bt_value *params,
160 const bt_value **user_result, const char **fail_reason)
161 {
162 const bt_value *result = NULL;
163 bt_query_executor_query_status query_status;
164 *fail_reason = "unknown error";
165 int ret = 0;
166
167 BT_ASSERT(fail_reason);
168 BT_ASSERT(user_result);
169 ret = create_the_query_executor();
170 if (ret) {
171 /* create_the_query_executor() logs errors */
172 goto end;
173 }
174
175 if (canceled) {
176 BT_LOGI("Canceled by user before executing the query: "
177 "comp-cls-addr=%p, comp-cls-name=\"%s\", "
178 "query-obj=\"%s\"", comp_cls,
179 bt_component_class_get_name(comp_cls), obj);
180 *fail_reason = "canceled by user";
181 goto error;
182 }
183
184 while (true) {
185 query_status = bt_query_executor_query(
186 the_query_executor, comp_cls, obj, params,
187 cfg->log_level, &result);
188 switch (query_status) {
189 case BT_QUERY_EXECUTOR_QUERY_STATUS_OK:
190 goto ok;
191 case BT_QUERY_EXECUTOR_QUERY_STATUS_AGAIN:
192 {
193 const uint64_t sleep_time_us = 100000;
194
195 /* Wait 100 ms and retry */
196 BT_LOGD("Got BT_QUERY_EXECUTOR_QUERY_STATUS_AGAIN: sleeping: "
197 "time-us=%" PRIu64, sleep_time_us);
198
199 if (usleep(sleep_time_us)) {
200 if (bt_query_executor_is_canceled(the_query_executor)) {
201 BT_LOGI("Query was canceled by user: "
202 "comp-cls-addr=%p, comp-cls-name=\"%s\", "
203 "query-obj=\"%s\"", comp_cls,
204 bt_component_class_get_name(comp_cls),
205 obj);
206 *fail_reason = "canceled by user";
207 goto error;
208 }
209 }
210
211 continue;
212 }
213 case BT_QUERY_EXECUTOR_QUERY_STATUS_CANCELED:
214 *fail_reason = "canceled by user";
215 goto error;
216 case BT_QUERY_EXECUTOR_QUERY_STATUS_ERROR:
217 goto error;
218 case BT_QUERY_EXECUTOR_QUERY_STATUS_INVALID_OBJECT:
219 *fail_reason = "invalid or unknown query object";
220 goto error;
221 case BT_QUERY_EXECUTOR_QUERY_STATUS_INVALID_PARAMS:
222 *fail_reason = "invalid query parameters";
223 goto error;
224 case BT_QUERY_EXECUTOR_QUERY_STATUS_UNSUPPORTED:
225 *fail_reason = "unsupported action";
226 goto error;
227 case BT_QUERY_EXECUTOR_QUERY_STATUS_MEMORY_ERROR:
228 *fail_reason = "not enough memory";
229 goto error;
230 default:
231 BT_LOGF("Unknown query status: status=%s",
232 bt_common_func_status_string(
233 query_status));
234 abort();
235 }
236 }
237
238 ok:
239 *user_result = result;
240 result = NULL;
241 goto end;
242
243 error:
244 ret = -1;
245
246 end:
247 destroy_the_query_executor();
248 bt_value_put_ref(result);
249 return ret;
250 }
251
252 static
253 const bt_plugin *find_plugin(const char *name)
254 {
255 int i;
256 const bt_plugin *plugin = NULL;
257
258 BT_ASSERT(name);
259 BT_LOGI("Finding plugin: name=\"%s\"", name);
260
261 for (i = 0; i < loaded_plugins->len; i++) {
262 plugin = g_ptr_array_index(loaded_plugins, i);
263
264 if (strcmp(name, bt_plugin_get_name(plugin)) == 0) {
265 break;
266 }
267
268 plugin = NULL;
269 }
270
271 if (plugin) {
272 BT_LOGI("Found plugin: name=\"%s\", plugin-addr=%p",
273 name, plugin);
274 } else {
275 BT_LOGI("Cannot find plugin: name=\"%s\"", name);
276 }
277
278 bt_plugin_get_ref(plugin);
279 return plugin;
280 }
281
282 typedef const void *(*plugin_borrow_comp_cls_func_t)(
283 const bt_plugin *, const char *);
284
285 static
286 const void *find_component_class_from_plugin(const char *plugin_name,
287 const char *comp_class_name,
288 plugin_borrow_comp_cls_func_t plugin_borrow_comp_cls_func)
289 {
290 const void *comp_class = NULL;
291 const bt_plugin *plugin;
292
293 BT_LOGI("Finding component class: plugin-name=\"%s\", "
294 "comp-cls-name=\"%s\"", plugin_name, comp_class_name);
295
296 plugin = find_plugin(plugin_name);
297 if (!plugin) {
298 goto end;
299 }
300
301 comp_class = plugin_borrow_comp_cls_func(plugin, comp_class_name);
302 bt_object_get_ref(comp_class);
303 BT_PLUGIN_PUT_REF_AND_RESET(plugin);
304
305 end:
306 if (comp_class) {
307 BT_LOGI("Found component class: plugin-name=\"%s\", "
308 "comp-cls-name=\"%s\"", plugin_name, comp_class_name);
309 } else {
310 BT_LOGI("Cannot find source component class: "
311 "plugin-name=\"%s\", comp-cls-name=\"%s\"",
312 plugin_name, comp_class_name);
313 }
314
315 return comp_class;
316 }
317
318 static
319 const bt_component_class_source *find_source_component_class(
320 const char *plugin_name, const char *comp_class_name)
321 {
322 return (const void *) find_component_class_from_plugin(
323 plugin_name, comp_class_name,
324 (plugin_borrow_comp_cls_func_t)
325 bt_plugin_borrow_source_component_class_by_name_const);
326 }
327
328 static
329 const bt_component_class_filter *find_filter_component_class(
330 const char *plugin_name, const char *comp_class_name)
331 {
332 return (const void *) find_component_class_from_plugin(
333 plugin_name, comp_class_name,
334 (plugin_borrow_comp_cls_func_t)
335 bt_plugin_borrow_filter_component_class_by_name_const);
336 }
337
338 static
339 const bt_component_class_sink *find_sink_component_class(
340 const char *plugin_name, const char *comp_class_name)
341 {
342 return (const void *) find_component_class_from_plugin(plugin_name,
343 comp_class_name,
344 (plugin_borrow_comp_cls_func_t)
345 bt_plugin_borrow_sink_component_class_by_name_const);
346 }
347
348 static
349 const bt_component_class *find_component_class(const char *plugin_name,
350 const char *comp_class_name,
351 bt_component_class_type comp_class_type)
352 {
353 const bt_component_class *comp_cls = NULL;
354
355 switch (comp_class_type) {
356 case BT_COMPONENT_CLASS_TYPE_SOURCE:
357 comp_cls = bt_component_class_source_as_component_class_const(find_source_component_class(plugin_name, comp_class_name));
358 break;
359 case BT_COMPONENT_CLASS_TYPE_FILTER:
360 comp_cls = bt_component_class_filter_as_component_class_const(find_filter_component_class(plugin_name, comp_class_name));
361 break;
362 case BT_COMPONENT_CLASS_TYPE_SINK:
363 comp_cls = bt_component_class_sink_as_component_class_const(find_sink_component_class(plugin_name, comp_class_name));
364 break;
365 default:
366 abort();
367 }
368
369 return comp_cls;
370 }
371
372 static
373 void print_indent(FILE *fp, size_t indent)
374 {
375 size_t i;
376
377 for (i = 0; i < indent; i++) {
378 fprintf(fp, " ");
379 }
380 }
381
382 static
383 const char *component_type_str(bt_component_class_type type)
384 {
385 switch (type) {
386 case BT_COMPONENT_CLASS_TYPE_SOURCE:
387 return "source";
388 case BT_COMPONENT_CLASS_TYPE_SINK:
389 return "sink";
390 case BT_COMPONENT_CLASS_TYPE_FILTER:
391 return "filter";
392 default:
393 return "(unknown)";
394 }
395 }
396
397 static
398 void print_plugin_comp_cls_opt(FILE *fh, const char *plugin_name,
399 const char *comp_cls_name, bt_component_class_type type)
400 {
401 GString *shell_plugin_name = NULL;
402 GString *shell_comp_cls_name = NULL;
403
404 shell_plugin_name = bt_common_shell_quote(plugin_name, false);
405 if (!shell_plugin_name) {
406 goto end;
407 }
408
409 shell_comp_cls_name = bt_common_shell_quote(comp_cls_name, false);
410 if (!shell_comp_cls_name) {
411 goto end;
412 }
413
414 fprintf(fh, "'%s%s%s%s.%s%s%s.%s%s%s'",
415 bt_common_color_bold(),
416 bt_common_color_fg_cyan(),
417 component_type_str(type),
418 bt_common_color_fg_default(),
419 bt_common_color_fg_blue(),
420 shell_plugin_name->str,
421 bt_common_color_fg_default(),
422 bt_common_color_fg_yellow(),
423 shell_comp_cls_name->str,
424 bt_common_color_reset());
425
426 end:
427 if (shell_plugin_name) {
428 g_string_free(shell_plugin_name, TRUE);
429 }
430
431 if (shell_comp_cls_name) {
432 g_string_free(shell_comp_cls_name, TRUE);
433 }
434 }
435
436 static
437 void print_value(FILE *, const bt_value *, size_t);
438
439 static
440 void print_value_rec(FILE *, const bt_value *, size_t);
441
442 struct print_map_value_data {
443 size_t indent;
444 FILE *fp;
445 };
446
447 static
448 bt_bool print_map_value(const char *key, const bt_value *object,
449 void *data)
450 {
451 struct print_map_value_data *print_map_value_data = data;
452
453 print_indent(print_map_value_data->fp, print_map_value_data->indent);
454 fprintf(print_map_value_data->fp, "%s: ", key);
455 BT_ASSERT(object);
456
457 if (bt_value_is_array(object) &&
458 bt_value_array_is_empty(object)) {
459 fprintf(print_map_value_data->fp, "[ ]\n");
460 return true;
461 }
462
463 if (bt_value_is_map(object) &&
464 bt_value_map_is_empty(object)) {
465 fprintf(print_map_value_data->fp, "{ }\n");
466 return true;
467 }
468
469 if (bt_value_is_array(object) ||
470 bt_value_is_map(object)) {
471 fprintf(print_map_value_data->fp, "\n");
472 }
473
474 print_value_rec(print_map_value_data->fp, object,
475 print_map_value_data->indent + 2);
476 return BT_TRUE;
477 }
478
479 static
480 void print_value_rec(FILE *fp, const bt_value *value, size_t indent)
481 {
482 bt_bool bool_val;
483 int64_t int_val;
484 uint64_t uint_val;
485 double dbl_val;
486 const char *str_val;
487 int size;
488 int i;
489
490 if (!value) {
491 return;
492 }
493
494 switch (bt_value_get_type(value)) {
495 case BT_VALUE_TYPE_NULL:
496 fprintf(fp, "%snull%s\n", bt_common_color_bold(),
497 bt_common_color_reset());
498 break;
499 case BT_VALUE_TYPE_BOOL:
500 bool_val = bt_value_bool_get(value);
501 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
502 bt_common_color_fg_cyan(), bool_val ? "yes" : "no",
503 bt_common_color_reset());
504 break;
505 case BT_VALUE_TYPE_UNSIGNED_INTEGER:
506 uint_val = bt_value_unsigned_integer_get(value);
507 fprintf(fp, "%s%s%" PRIu64 "%s\n", bt_common_color_bold(),
508 bt_common_color_fg_red(), uint_val,
509 bt_common_color_reset());
510 break;
511 case BT_VALUE_TYPE_SIGNED_INTEGER:
512 int_val = bt_value_signed_integer_get(value);
513 fprintf(fp, "%s%s%" PRId64 "%s\n", bt_common_color_bold(),
514 bt_common_color_fg_red(), int_val,
515 bt_common_color_reset());
516 break;
517 case BT_VALUE_TYPE_REAL:
518 dbl_val = bt_value_real_get(value);
519 fprintf(fp, "%s%s%lf%s\n", bt_common_color_bold(),
520 bt_common_color_fg_red(), dbl_val,
521 bt_common_color_reset());
522 break;
523 case BT_VALUE_TYPE_STRING:
524 str_val = bt_value_string_get(value);
525 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
526 bt_common_color_fg_green(), str_val,
527 bt_common_color_reset());
528 break;
529 case BT_VALUE_TYPE_ARRAY:
530 size = bt_value_array_get_size(value);
531 if (size < 0) {
532 goto error;
533 }
534
535 if (size == 0) {
536 print_indent(fp, indent);
537 fprintf(fp, "[ ]\n");
538 break;
539 }
540
541 for (i = 0; i < size; i++) {
542 const bt_value *element =
543 bt_value_array_borrow_element_by_index_const(
544 value, i);
545
546 if (!element) {
547 goto error;
548 }
549 print_indent(fp, indent);
550 fprintf(fp, "- ");
551
552 if (bt_value_is_array(element) &&
553 bt_value_array_is_empty(element)) {
554 fprintf(fp, "[ ]\n");
555 continue;
556 }
557
558 if (bt_value_is_map(element) &&
559 bt_value_map_is_empty(element)) {
560 fprintf(fp, "{ }\n");
561 continue;
562 }
563
564 if (bt_value_is_array(element) ||
565 bt_value_is_map(element)) {
566 fprintf(fp, "\n");
567 }
568
569 print_value_rec(fp, element, indent + 2);
570 }
571 break;
572 case BT_VALUE_TYPE_MAP:
573 {
574 struct print_map_value_data data = {
575 .indent = indent,
576 .fp = fp,
577 };
578
579 if (bt_value_map_is_empty(value)) {
580 print_indent(fp, indent);
581 fprintf(fp, "{ }\n");
582 break;
583 }
584
585 bt_value_map_foreach_entry_const(value, print_map_value, &data);
586 break;
587 }
588 default:
589 abort();
590 }
591 return;
592
593 error:
594 BT_LOGE("Error printing value of type %s.",
595 bt_common_value_type_string(bt_value_get_type(value)));
596 }
597
598 static
599 void print_value(FILE *fp, const bt_value *value, size_t indent)
600 {
601 if (!bt_value_is_array(value) && !bt_value_is_map(value)) {
602 print_indent(fp, indent);
603 }
604
605 print_value_rec(fp, value, indent);
606 }
607
608 static
609 void print_bt_config_component(struct bt_config_component *bt_config_component)
610 {
611 fprintf(stderr, " ");
612 print_plugin_comp_cls_opt(stderr, bt_config_component->plugin_name->str,
613 bt_config_component->comp_cls_name->str,
614 bt_config_component->type);
615 fprintf(stderr, ":\n");
616
617 if (bt_config_component->instance_name->len > 0) {
618 fprintf(stderr, " Name: %s\n",
619 bt_config_component->instance_name->str);
620 }
621
622 fprintf(stderr, " Parameters:\n");
623 print_value(stderr, bt_config_component->params, 8);
624 }
625
626 static
627 void print_bt_config_components(GPtrArray *array)
628 {
629 size_t i;
630
631 for (i = 0; i < array->len; i++) {
632 struct bt_config_component *cfg_component =
633 bt_config_get_component(array, i);
634 print_bt_config_component(cfg_component);
635 BT_OBJECT_PUT_REF_AND_RESET(cfg_component);
636 }
637 }
638
639 static
640 void print_plugin_paths(const bt_value *plugin_paths)
641 {
642 fprintf(stderr, " Plugin paths:\n");
643 print_value(stderr, plugin_paths, 4);
644 }
645
646 static
647 void print_cfg_run(struct bt_config *cfg)
648 {
649 size_t i;
650
651 print_plugin_paths(cfg->plugin_paths);
652 fprintf(stderr, " Source component instances:\n");
653 print_bt_config_components(cfg->cmd_data.run.sources);
654
655 if (cfg->cmd_data.run.filters->len > 0) {
656 fprintf(stderr, " Filter component instances:\n");
657 print_bt_config_components(cfg->cmd_data.run.filters);
658 }
659
660 fprintf(stderr, " Sink component instances:\n");
661 print_bt_config_components(cfg->cmd_data.run.sinks);
662 fprintf(stderr, " Connections:\n");
663
664 for (i = 0; i < cfg->cmd_data.run.connections->len; i++) {
665 struct bt_config_connection *cfg_connection =
666 g_ptr_array_index(cfg->cmd_data.run.connections,
667 i);
668
669 fprintf(stderr, " %s%s%s -> %s%s%s\n",
670 cfg_connection->upstream_comp_name->str,
671 cfg_connection->upstream_port_glob->len > 0 ? "." : "",
672 cfg_connection->upstream_port_glob->str,
673 cfg_connection->downstream_comp_name->str,
674 cfg_connection->downstream_port_glob->len > 0 ? "." : "",
675 cfg_connection->downstream_port_glob->str);
676 }
677 }
678
679 static
680 void print_cfg_list_plugins(struct bt_config *cfg)
681 {
682 print_plugin_paths(cfg->plugin_paths);
683 }
684
685 static
686 void print_cfg_help(struct bt_config *cfg)
687 {
688 print_plugin_paths(cfg->plugin_paths);
689 }
690
691 static
692 void print_cfg_print_ctf_metadata(struct bt_config *cfg)
693 {
694 print_plugin_paths(cfg->plugin_paths);
695 fprintf(stderr, " Path: %s\n",
696 cfg->cmd_data.print_ctf_metadata.path->str);
697 }
698
699 static
700 void print_cfg_print_lttng_live_sessions(struct bt_config *cfg)
701 {
702 print_plugin_paths(cfg->plugin_paths);
703 fprintf(stderr, " URL: %s\n",
704 cfg->cmd_data.print_lttng_live_sessions.url->str);
705 }
706
707 static
708 void print_cfg_query(struct bt_config *cfg)
709 {
710 print_plugin_paths(cfg->plugin_paths);
711 fprintf(stderr, " Object: `%s`\n", cfg->cmd_data.query.object->str);
712 fprintf(stderr, " Component class:\n");
713 print_bt_config_component(cfg->cmd_data.query.cfg_component);
714 }
715
716 static
717 void print_cfg(struct bt_config *cfg)
718 {
719 if (!BT_LOG_ON_INFO) {
720 return;
721 }
722
723 BT_LOGI_STR("CLI configuration:");
724 BT_LOGI(" Debug mode: %s\n", cfg->debug ? "yes" : "no");
725 BT_LOGI(" Verbose mode: %s\n", cfg->verbose ? "yes" : "no");
726
727 switch (cfg->command) {
728 case BT_CONFIG_COMMAND_RUN:
729 print_cfg_run(cfg);
730 break;
731 case BT_CONFIG_COMMAND_LIST_PLUGINS:
732 print_cfg_list_plugins(cfg);
733 break;
734 case BT_CONFIG_COMMAND_HELP:
735 print_cfg_help(cfg);
736 break;
737 case BT_CONFIG_COMMAND_QUERY:
738 print_cfg_query(cfg);
739 break;
740 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
741 print_cfg_print_ctf_metadata(cfg);
742 break;
743 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
744 print_cfg_print_lttng_live_sessions(cfg);
745 break;
746 default:
747 abort();
748 }
749 }
750
751 static
752 void add_to_loaded_plugins(const bt_plugin_set *plugin_set)
753 {
754 int64_t i;
755 int64_t count;
756
757 count = bt_plugin_set_get_plugin_count(plugin_set);
758 BT_ASSERT(count >= 0);
759
760 for (i = 0; i < count; i++) {
761 const bt_plugin *plugin =
762 bt_plugin_set_borrow_plugin_by_index_const(plugin_set, i);
763 const bt_plugin *loaded_plugin =
764 find_plugin(bt_plugin_get_name(plugin));
765
766 BT_ASSERT(plugin);
767
768 if (loaded_plugin) {
769 BT_LOGI("Not using plugin: another one already exists with the same name: "
770 "plugin-name=\"%s\", plugin-path=\"%s\", "
771 "existing-plugin-path=\"%s\"",
772 bt_plugin_get_name(plugin),
773 bt_plugin_get_path(plugin),
774 bt_plugin_get_path(loaded_plugin));
775 bt_plugin_put_ref(loaded_plugin);
776 } else {
777 /* Add to global array. */
778 BT_LOGD("Adding plugin to loaded plugins: plugin-path=\"%s\"",
779 bt_plugin_get_name(plugin));
780 bt_plugin_get_ref(plugin);
781 g_ptr_array_add(loaded_plugins, (void *) plugin);
782 }
783 }
784 }
785
786 static
787 int load_dynamic_plugins(const bt_value *plugin_paths)
788 {
789 int nr_paths, i, ret = 0;
790
791 nr_paths = bt_value_array_get_size(plugin_paths);
792 if (nr_paths < 0) {
793 BT_LOGE_STR("Cannot load dynamic plugins: no plugin path.");
794 ret = -1;
795 goto end;
796 }
797
798 BT_LOGI_STR("Loading dynamic plugins.");
799
800 for (i = 0; i < nr_paths; i++) {
801 const bt_value *plugin_path_value = NULL;
802 const char *plugin_path;
803 const bt_plugin_set *plugin_set = NULL;
804 bt_plugin_find_all_from_dir_status status;
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 status = bt_plugin_find_all_from_dir(plugin_path, BT_FALSE,
823 BT_FALSE, &plugin_set);
824 if (status < 0) {
825 BT_LOGE("Unable to load dynamic plugins from directory: "
826 "path=\"%s\"", plugin_path);
827 continue;
828 } else if (status ==
829 BT_PLUGIN_FIND_ALL_FROM_DIR_STATUS_NOT_FOUND) {
830 BT_LOGI("No plugins found in directory: path=\"%s\"",
831 plugin_path);
832 continue;
833 }
834
835 BT_ASSERT(status == BT_PLUGIN_FIND_ALL_FROM_DIR_STATUS_OK);
836 BT_ASSERT(plugin_set);
837 add_to_loaded_plugins(plugin_set);
838 bt_plugin_set_put_ref(plugin_set);
839 }
840 end:
841 return ret;
842 }
843
844 static
845 int load_static_plugins(void)
846 {
847 int ret = 0;
848 const bt_plugin_set *plugin_set;
849 bt_plugin_find_all_from_static_status status;
850
851 BT_LOGI("Loading static plugins.");
852 status = bt_plugin_find_all_from_static(BT_FALSE, &plugin_set);
853 if (status < 0) {
854 BT_LOGE("Unable to load static plugins.");
855 ret = -1;
856 goto end;
857 } else if (status ==
858 BT_PLUGIN_FIND_ALL_FROM_STATIC_STATUS_NOT_FOUND) {
859 BT_LOGI("No static plugins found.");
860 goto end;
861 }
862
863 BT_ASSERT(status == BT_PLUGIN_FIND_ALL_FROM_STATIC_STATUS_OK);
864 BT_ASSERT(plugin_set);
865 add_to_loaded_plugins(plugin_set);
866 bt_plugin_set_put_ref(plugin_set);
867
868 end:
869 return ret;
870 }
871
872 static
873 int load_all_plugins(const bt_value *plugin_paths)
874 {
875 int ret = 0;
876
877 if (load_dynamic_plugins(plugin_paths)) {
878 ret = -1;
879 goto end;
880 }
881
882 if (load_static_plugins()) {
883 ret = -1;
884 goto end;
885 }
886
887 BT_LOGI("Loaded all plugins: count=%u", loaded_plugins->len);
888
889 end:
890 return ret;
891 }
892
893 static
894 void print_plugin_info(const bt_plugin *plugin)
895 {
896 unsigned int major, minor, patch;
897 const char *extra;
898 bt_property_availability version_avail;
899 const char *plugin_name;
900 const char *path;
901 const char *author;
902 const char *license;
903 const char *plugin_description;
904
905 plugin_name = bt_plugin_get_name(plugin);
906 path = bt_plugin_get_path(plugin);
907 author = bt_plugin_get_author(plugin);
908 license = bt_plugin_get_license(plugin);
909 plugin_description = bt_plugin_get_description(plugin);
910 version_avail = bt_plugin_get_version(plugin, &major, &minor,
911 &patch, &extra);
912 printf("%s%s%s%s:\n", bt_common_color_bold(),
913 bt_common_color_fg_blue(), plugin_name,
914 bt_common_color_reset());
915 if (path) {
916 printf(" %sPath%s: %s\n", bt_common_color_bold(),
917 bt_common_color_reset(), path);
918 } else {
919 puts(" Built-in");
920 }
921
922 if (version_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) {
923 printf(" %sVersion%s: %u.%u.%u",
924 bt_common_color_bold(), bt_common_color_reset(),
925 major, minor, patch);
926
927 if (extra) {
928 printf("%s", extra);
929 }
930
931 printf("\n");
932 }
933
934 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
935 bt_common_color_reset(),
936 plugin_description ? plugin_description : "(None)");
937 printf(" %sAuthor%s: %s\n", bt_common_color_bold(),
938 bt_common_color_reset(), author ? author : "(Unknown)");
939 printf(" %sLicense%s: %s\n", bt_common_color_bold(),
940 bt_common_color_reset(),
941 license ? license : "(Unknown)");
942 }
943
944 static
945 int cmd_query(struct bt_config *cfg)
946 {
947 int ret = 0;
948 const bt_component_class *comp_cls = NULL;
949 const bt_value *results = NULL;
950 const char *fail_reason = NULL;
951
952 comp_cls = find_component_class(
953 cfg->cmd_data.query.cfg_component->plugin_name->str,
954 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
955 cfg->cmd_data.query.cfg_component->type);
956 if (!comp_cls) {
957 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
958 "comp-cls-name=\"%s\", comp-cls-type=%d",
959 cfg->cmd_data.query.cfg_component->plugin_name->str,
960 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
961 cfg->cmd_data.query.cfg_component->type);
962 fprintf(stderr, "%s%sCannot find component class %s",
963 bt_common_color_bold(),
964 bt_common_color_fg_red(),
965 bt_common_color_reset());
966 print_plugin_comp_cls_opt(stderr,
967 cfg->cmd_data.query.cfg_component->plugin_name->str,
968 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
969 cfg->cmd_data.query.cfg_component->type);
970 fprintf(stderr, "\n");
971 ret = -1;
972 goto end;
973 }
974
975 ret = query(cfg, comp_cls, cfg->cmd_data.query.object->str,
976 cfg->cmd_data.query.cfg_component->params,
977 &results, &fail_reason);
978 if (ret) {
979 goto failed;
980 }
981
982 print_value(stdout, results, 0);
983 goto end;
984
985 failed:
986 BT_LOGE("Failed to query component class: %s: plugin-name=\"%s\", "
987 "comp-cls-name=\"%s\", comp-cls-type=%d "
988 "object=\"%s\"", fail_reason,
989 cfg->cmd_data.query.cfg_component->plugin_name->str,
990 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
991 cfg->cmd_data.query.cfg_component->type,
992 cfg->cmd_data.query.object->str);
993 fprintf(stderr, "%s%sFailed to query info to %s",
994 bt_common_color_bold(),
995 bt_common_color_fg_red(),
996 bt_common_color_reset());
997 print_plugin_comp_cls_opt(stderr,
998 cfg->cmd_data.query.cfg_component->plugin_name->str,
999 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
1000 cfg->cmd_data.query.cfg_component->type);
1001 fprintf(stderr, "%s%s with object `%s`: %s%s\n",
1002 bt_common_color_bold(),
1003 bt_common_color_fg_red(),
1004 cfg->cmd_data.query.object->str,
1005 fail_reason,
1006 bt_common_color_reset());
1007 ret = -1;
1008
1009 end:
1010 bt_component_class_put_ref(comp_cls);
1011 bt_value_put_ref(results);
1012 return ret;
1013 }
1014
1015 static
1016 void print_component_class_help(const char *plugin_name,
1017 const bt_component_class *comp_cls)
1018 {
1019 const char *comp_class_name =
1020 bt_component_class_get_name(comp_cls);
1021 const char *comp_class_description =
1022 bt_component_class_get_description(comp_cls);
1023 const char *comp_class_help =
1024 bt_component_class_get_help(comp_cls);
1025 bt_component_class_type type =
1026 bt_component_class_get_type(comp_cls);
1027
1028 print_plugin_comp_cls_opt(stdout, plugin_name, comp_class_name, type);
1029 printf("\n");
1030 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
1031 bt_common_color_reset(),
1032 comp_class_description ? comp_class_description : "(None)");
1033
1034 if (comp_class_help) {
1035 printf("\n%s\n", comp_class_help);
1036 }
1037 }
1038
1039 static
1040 int cmd_help(struct bt_config *cfg)
1041 {
1042 int ret = 0;
1043 const bt_plugin *plugin = NULL;
1044 const bt_component_class *needed_comp_cls = NULL;
1045
1046 plugin = find_plugin(cfg->cmd_data.help.cfg_component->plugin_name->str);
1047 if (!plugin) {
1048 BT_LOGE("Cannot find plugin: plugin-name=\"%s\"",
1049 cfg->cmd_data.help.cfg_component->plugin_name->str);
1050 fprintf(stderr, "%s%sCannot find plugin %s%s%s\n",
1051 bt_common_color_bold(), bt_common_color_fg_red(),
1052 bt_common_color_fg_blue(),
1053 cfg->cmd_data.help.cfg_component->plugin_name->str,
1054 bt_common_color_reset());
1055 ret = -1;
1056 goto end;
1057 }
1058
1059 print_plugin_info(plugin);
1060 printf(" %sSource component classes%s: %d\n",
1061 bt_common_color_bold(),
1062 bt_common_color_reset(),
1063 (int) bt_plugin_get_source_component_class_count(plugin));
1064 printf(" %sFilter component classes%s: %d\n",
1065 bt_common_color_bold(),
1066 bt_common_color_reset(),
1067 (int) bt_plugin_get_filter_component_class_count(plugin));
1068 printf(" %sSink component classes%s: %d\n",
1069 bt_common_color_bold(),
1070 bt_common_color_reset(),
1071 (int) bt_plugin_get_sink_component_class_count(plugin));
1072
1073 if (strlen(cfg->cmd_data.help.cfg_component->comp_cls_name->str) == 0) {
1074 /* Plugin help only */
1075 goto end;
1076 }
1077
1078 needed_comp_cls = find_component_class(
1079 cfg->cmd_data.help.cfg_component->plugin_name->str,
1080 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
1081 cfg->cmd_data.help.cfg_component->type);
1082 if (!needed_comp_cls) {
1083 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1084 "comp-cls-name=\"%s\", comp-cls-type=%d",
1085 cfg->cmd_data.help.cfg_component->plugin_name->str,
1086 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
1087 cfg->cmd_data.help.cfg_component->type);
1088 fprintf(stderr, "\n%s%sCannot find component class %s",
1089 bt_common_color_bold(),
1090 bt_common_color_fg_red(),
1091 bt_common_color_reset());
1092 print_plugin_comp_cls_opt(stderr,
1093 cfg->cmd_data.help.cfg_component->plugin_name->str,
1094 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
1095 cfg->cmd_data.help.cfg_component->type);
1096 fprintf(stderr, "\n");
1097 ret = -1;
1098 goto end;
1099 }
1100
1101 printf("\n");
1102 print_component_class_help(
1103 cfg->cmd_data.help.cfg_component->plugin_name->str,
1104 needed_comp_cls);
1105
1106 end:
1107 bt_component_class_put_ref(needed_comp_cls);
1108 bt_plugin_put_ref(plugin);
1109 return ret;
1110 }
1111
1112 typedef void *(* plugin_borrow_comp_cls_by_index_func_t)(const bt_plugin *,
1113 uint64_t);
1114 typedef const bt_component_class *(* spec_comp_cls_borrow_comp_cls_func_t)(
1115 void *);
1116
1117 void cmd_list_plugins_print_component_classes(const bt_plugin *plugin,
1118 const char *cc_type_name, uint64_t count,
1119 plugin_borrow_comp_cls_by_index_func_t borrow_comp_cls_by_index_func,
1120 spec_comp_cls_borrow_comp_cls_func_t spec_comp_cls_borrow_comp_cls_func)
1121 {
1122 uint64_t i;
1123
1124 if (count == 0) {
1125 printf(" %s%s component classes%s: (none)\n",
1126 bt_common_color_bold(),
1127 cc_type_name,
1128 bt_common_color_reset());
1129 goto end;
1130 } else {
1131 printf(" %s%s component classes%s:\n",
1132 bt_common_color_bold(),
1133 cc_type_name,
1134 bt_common_color_reset());
1135 }
1136
1137 for (i = 0; i < count; i++) {
1138 const bt_component_class *comp_class =
1139 spec_comp_cls_borrow_comp_cls_func(
1140 borrow_comp_cls_by_index_func(plugin, i));
1141 const char *comp_class_name =
1142 bt_component_class_get_name(comp_class);
1143 const char *comp_class_description =
1144 bt_component_class_get_description(comp_class);
1145 bt_component_class_type type =
1146 bt_component_class_get_type(comp_class);
1147
1148 printf(" ");
1149 print_plugin_comp_cls_opt(stdout,
1150 bt_plugin_get_name(plugin), comp_class_name,
1151 type);
1152
1153 if (comp_class_description) {
1154 printf(": %s", comp_class_description);
1155 }
1156
1157 printf("\n");
1158 }
1159
1160 end:
1161 return;
1162 }
1163
1164 static
1165 int cmd_list_plugins(struct bt_config *cfg)
1166 {
1167 int ret = 0;
1168 int plugins_count, component_classes_count = 0, i;
1169
1170 printf("From the following plugin paths:\n\n");
1171 print_value(stdout, cfg->plugin_paths, 2);
1172 printf("\n");
1173 plugins_count = loaded_plugins->len;
1174 if (plugins_count == 0) {
1175 printf("No plugins found.\n");
1176 goto end;
1177 }
1178
1179 for (i = 0; i < plugins_count; i++) {
1180 const bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
1181
1182 component_classes_count +=
1183 bt_plugin_get_source_component_class_count(plugin) +
1184 bt_plugin_get_filter_component_class_count(plugin) +
1185 bt_plugin_get_sink_component_class_count(plugin);
1186 }
1187
1188 printf("Found %s%d%s component classes in %s%d%s plugins.\n",
1189 bt_common_color_bold(),
1190 component_classes_count,
1191 bt_common_color_reset(),
1192 bt_common_color_bold(),
1193 plugins_count,
1194 bt_common_color_reset());
1195
1196 for (i = 0; i < plugins_count; i++) {
1197 const bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
1198
1199 printf("\n");
1200 print_plugin_info(plugin);
1201 cmd_list_plugins_print_component_classes(plugin, "Source",
1202 bt_plugin_get_source_component_class_count(plugin),
1203 (plugin_borrow_comp_cls_by_index_func_t)
1204 bt_plugin_borrow_source_component_class_by_index_const,
1205 (spec_comp_cls_borrow_comp_cls_func_t)
1206 bt_component_class_source_as_component_class);
1207 cmd_list_plugins_print_component_classes(plugin, "Filter",
1208 bt_plugin_get_filter_component_class_count(plugin),
1209 (plugin_borrow_comp_cls_by_index_func_t)
1210 bt_plugin_borrow_filter_component_class_by_index_const,
1211 (spec_comp_cls_borrow_comp_cls_func_t)
1212 bt_component_class_filter_as_component_class);
1213 cmd_list_plugins_print_component_classes(plugin, "Sink",
1214 bt_plugin_get_sink_component_class_count(plugin),
1215 (plugin_borrow_comp_cls_by_index_func_t)
1216 bt_plugin_borrow_sink_component_class_by_index_const,
1217 (spec_comp_cls_borrow_comp_cls_func_t)
1218 bt_component_class_sink_as_component_class);
1219 }
1220
1221 end:
1222 return ret;
1223 }
1224
1225 static
1226 int cmd_print_lttng_live_sessions(struct bt_config *cfg)
1227 {
1228 int ret = 0;
1229 const bt_component_class *comp_cls = NULL;
1230 const bt_value *results = NULL;
1231 bt_value *params = NULL;
1232 const bt_value *map = NULL;
1233 const bt_value *v = NULL;
1234 static const char * const plugin_name = "ctf";
1235 static const char * const comp_cls_name = "lttng-live";
1236 static const bt_component_class_type comp_cls_type =
1237 BT_COMPONENT_CLASS_TYPE_SOURCE;
1238 int64_t array_size, i;
1239 const char *fail_reason = NULL;
1240 FILE *out_stream = stdout;
1241
1242 BT_ASSERT(cfg->cmd_data.print_lttng_live_sessions.url);
1243 comp_cls = find_component_class(plugin_name, comp_cls_name,
1244 comp_cls_type);
1245 if (!comp_cls) {
1246 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1247 "comp-cls-name=\"%s\", comp-cls-type=%d",
1248 plugin_name, comp_cls_name,
1249 BT_COMPONENT_CLASS_TYPE_SOURCE);
1250 fprintf(stderr, "%s%sCannot find component class %s",
1251 bt_common_color_bold(),
1252 bt_common_color_fg_red(),
1253 bt_common_color_reset());
1254 print_plugin_comp_cls_opt(stderr, plugin_name,
1255 comp_cls_name, comp_cls_type);
1256 fprintf(stderr, "\n");
1257 goto error;
1258 }
1259
1260 params = bt_value_map_create();
1261 if (!params) {
1262 goto error;
1263 }
1264
1265 ret = bt_value_map_insert_string_entry(params, "url",
1266 cfg->cmd_data.print_lttng_live_sessions.url->str);
1267 if (ret) {
1268 goto error;
1269 }
1270
1271 ret = query(cfg, comp_cls, "sessions", params,
1272 &results, &fail_reason);
1273 if (ret) {
1274 goto failed;
1275 }
1276
1277 BT_ASSERT(results);
1278
1279 if (!bt_value_is_array(results)) {
1280 BT_LOGE_STR("Expecting an array for sessions query.");
1281 fprintf(stderr, "%s%sUnexpected type returned by session query%s\n",
1282 bt_common_color_bold(),
1283 bt_common_color_fg_red(),
1284 bt_common_color_reset());
1285 goto error;
1286 }
1287
1288 if (cfg->cmd_data.print_lttng_live_sessions.output_path->len > 0) {
1289 out_stream =
1290 fopen(cfg->cmd_data.print_lttng_live_sessions.output_path->str,
1291 "w");
1292 if (!out_stream) {
1293 ret = -1;
1294 BT_LOGE_ERRNO("Cannot open file for writing",
1295 ": path=\"%s\"",
1296 cfg->cmd_data.print_lttng_live_sessions.output_path->str);
1297 goto end;
1298 }
1299 }
1300
1301 array_size = bt_value_array_get_size(results);
1302 for (i = 0; i < array_size; i++) {
1303 const char *url_text;
1304 int64_t timer_us, streams, clients;
1305
1306 map = bt_value_array_borrow_element_by_index_const(results, i);
1307 if (!map) {
1308 BT_LOGE_STR("Unexpected empty array entry.");
1309 goto error;
1310 }
1311 if (!bt_value_is_map(map)) {
1312 BT_LOGE_STR("Unexpected entry type.");
1313 goto error;
1314 }
1315
1316 v = bt_value_map_borrow_entry_value_const(map, "url");
1317 if (!v) {
1318 BT_LOGE_STR("Unexpected empty array \"url\" entry.");
1319 goto error;
1320 }
1321 url_text = bt_value_string_get(v);
1322 fprintf(out_stream, "%s", url_text);
1323 v = bt_value_map_borrow_entry_value_const(map, "timer-us");
1324 if (!v) {
1325 BT_LOGE_STR("Unexpected empty array \"timer-us\" entry.");
1326 goto error;
1327 }
1328 timer_us = bt_value_signed_integer_get(v);
1329 fprintf(out_stream, " (timer = %" PRIu64 ", ", timer_us);
1330 v = bt_value_map_borrow_entry_value_const(map, "stream-count");
1331 if (!v) {
1332 BT_LOGE_STR("Unexpected empty array \"stream-count\" entry.");
1333 goto error;
1334 }
1335 streams = bt_value_signed_integer_get(v);
1336 fprintf(out_stream, "%" PRIu64 " stream(s), ", streams);
1337 v = bt_value_map_borrow_entry_value_const(map, "client-count");
1338 if (!v) {
1339 BT_LOGE_STR("Unexpected empty array \"client-count\" entry.");
1340 goto error;
1341 }
1342 clients = bt_value_signed_integer_get(v);
1343 fprintf(out_stream, "%" PRIu64 " client(s) connected)\n", clients);
1344 }
1345
1346 goto end;
1347
1348 failed:
1349 BT_LOGE("Failed to query for sessions: %s", fail_reason);
1350 fprintf(stderr, "%s%sFailed to request sessions: %s%s\n",
1351 bt_common_color_bold(),
1352 bt_common_color_fg_red(),
1353 fail_reason,
1354 bt_common_color_reset());
1355
1356 error:
1357 ret = -1;
1358
1359 end:
1360 bt_value_put_ref(results);
1361 bt_value_put_ref(params);
1362 bt_component_class_put_ref(comp_cls);
1363
1364 if (out_stream && out_stream != stdout) {
1365 int fclose_ret = fclose(out_stream);
1366
1367 if (fclose_ret) {
1368 BT_LOGE_ERRNO("Cannot close file stream",
1369 ": path=\"%s\"",
1370 cfg->cmd_data.print_lttng_live_sessions.output_path->str);
1371 }
1372 }
1373
1374 return ret;
1375 }
1376
1377 static
1378 int cmd_print_ctf_metadata(struct bt_config *cfg)
1379 {
1380 int ret = 0;
1381 const bt_component_class *comp_cls = NULL;
1382 const bt_value *results = NULL;
1383 bt_value *params = NULL;
1384 const bt_value *metadata_text_value = NULL;
1385 const char *metadata_text = NULL;
1386 static const char * const plugin_name = "ctf";
1387 static const char * const comp_cls_name = "fs";
1388 static const bt_component_class_type comp_cls_type =
1389 BT_COMPONENT_CLASS_TYPE_SOURCE;
1390 const char *fail_reason = NULL;
1391 FILE *out_stream = stdout;
1392
1393 BT_ASSERT(cfg->cmd_data.print_ctf_metadata.path);
1394 comp_cls = find_component_class(plugin_name, comp_cls_name,
1395 comp_cls_type);
1396 if (!comp_cls) {
1397 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1398 "comp-cls-name=\"%s\", comp-cls-type=%d",
1399 plugin_name, comp_cls_name,
1400 BT_COMPONENT_CLASS_TYPE_SOURCE);
1401 fprintf(stderr, "%s%sCannot find component class %s",
1402 bt_common_color_bold(),
1403 bt_common_color_fg_red(),
1404 bt_common_color_reset());
1405 print_plugin_comp_cls_opt(stderr, plugin_name,
1406 comp_cls_name, comp_cls_type);
1407 fprintf(stderr, "\n");
1408 ret = -1;
1409 goto end;
1410 }
1411
1412 params = bt_value_map_create();
1413 if (!params) {
1414 ret = -1;
1415 goto end;
1416 }
1417
1418 ret = bt_value_map_insert_string_entry(params, "path",
1419 cfg->cmd_data.print_ctf_metadata.path->str);
1420 if (ret) {
1421 ret = -1;
1422 goto end;
1423 }
1424
1425 ret = query(cfg, comp_cls, "metadata-info",
1426 params, &results, &fail_reason);
1427 if (ret) {
1428 goto failed;
1429 }
1430
1431 metadata_text_value = bt_value_map_borrow_entry_value_const(results,
1432 "text");
1433 if (!metadata_text_value) {
1434 BT_LOGE_STR("Cannot find `text` string value in the resulting metadata info object.");
1435 ret = -1;
1436 goto end;
1437 }
1438
1439 metadata_text = bt_value_string_get(metadata_text_value);
1440
1441 if (cfg->cmd_data.print_ctf_metadata.output_path->len > 0) {
1442 out_stream =
1443 fopen(cfg->cmd_data.print_ctf_metadata.output_path->str,
1444 "w");
1445 if (!out_stream) {
1446 ret = -1;
1447 BT_LOGE_ERRNO("Cannot open file for writing",
1448 ": path=\"%s\"",
1449 cfg->cmd_data.print_ctf_metadata.output_path->str);
1450 goto end;
1451 }
1452 }
1453
1454 ret = fprintf(out_stream, "%s\n", metadata_text);
1455 if (ret < 0) {
1456 BT_LOGE("Cannot write whole metadata text to output stream: "
1457 "ret=%d", ret);
1458 goto end;
1459 }
1460
1461 ret = 0;
1462
1463 goto end;
1464
1465 failed:
1466 ret = -1;
1467 BT_LOGE("Failed to query for metadata info: %s", fail_reason);
1468 fprintf(stderr, "%s%sFailed to request metadata info: %s%s\n",
1469 bt_common_color_bold(),
1470 bt_common_color_fg_red(),
1471 fail_reason,
1472 bt_common_color_reset());
1473
1474 end:
1475 bt_value_put_ref(results);
1476 bt_value_put_ref(params);
1477 bt_component_class_put_ref(comp_cls);
1478
1479 if (out_stream && out_stream != stdout) {
1480 int fclose_ret = fclose(out_stream);
1481
1482 if (fclose_ret) {
1483 BT_LOGE_ERRNO("Cannot close file stream",
1484 ": path=\"%s\"",
1485 cfg->cmd_data.print_ctf_metadata.output_path->str);
1486 }
1487 }
1488
1489 return ret;
1490 }
1491
1492 struct port_id {
1493 char *instance_name;
1494 char *port_name;
1495 };
1496
1497 struct trace_range {
1498 uint64_t intersection_range_begin_ns;
1499 uint64_t intersection_range_end_ns;
1500 };
1501
1502 static
1503 guint port_id_hash(gconstpointer v)
1504 {
1505 const struct port_id *id = v;
1506
1507 BT_ASSERT(id->instance_name);
1508 BT_ASSERT(id->port_name);
1509
1510 return g_str_hash(id->instance_name) ^ g_str_hash(id->port_name);
1511 }
1512
1513 static
1514 gboolean port_id_equal(gconstpointer v1, gconstpointer v2)
1515 {
1516 const struct port_id *id1 = v1;
1517 const struct port_id *id2 = v2;
1518
1519 return !strcmp(id1->instance_name, id2->instance_name) &&
1520 !strcmp(id1->port_name, id2->port_name);
1521 }
1522
1523 static
1524 void port_id_destroy(gpointer data)
1525 {
1526 struct port_id *id = data;
1527
1528 free(id->instance_name);
1529 free(id->port_name);
1530 free(id);
1531 }
1532
1533 static
1534 void trace_range_destroy(gpointer data)
1535 {
1536 free(data);
1537 }
1538
1539 struct cmd_run_ctx {
1540 /* Owned by this */
1541 GHashTable *src_components;
1542
1543 /* Owned by this */
1544 GHashTable *flt_components;
1545
1546 /* Owned by this */
1547 GHashTable *sink_components;
1548
1549 /* Owned by this */
1550 bt_graph *graph;
1551
1552 /* Weak */
1553 struct bt_config *cfg;
1554
1555 bool connect_ports;
1556
1557 bool stream_intersection_mode;
1558
1559 /*
1560 * Association of struct port_id -> struct trace_range.
1561 */
1562 GHashTable *intersections;
1563 };
1564
1565 /* Returns a timestamp of the form "(-)s.ns" */
1566 static
1567 char *s_from_ns(int64_t ns)
1568 {
1569 int ret;
1570 char *s_ret = NULL;
1571 bool is_negative;
1572 int64_t ts_sec_abs, ts_nsec_abs;
1573 int64_t ts_sec = ns / NSEC_PER_SEC;
1574 int64_t ts_nsec = ns % NSEC_PER_SEC;
1575
1576 if (ts_sec >= 0 && ts_nsec >= 0) {
1577 is_negative = false;
1578 ts_sec_abs = ts_sec;
1579 ts_nsec_abs = ts_nsec;
1580 } else if (ts_sec > 0 && ts_nsec < 0) {
1581 is_negative = false;
1582 ts_sec_abs = ts_sec - 1;
1583 ts_nsec_abs = NSEC_PER_SEC + ts_nsec;
1584 } else if (ts_sec == 0 && ts_nsec < 0) {
1585 is_negative = true;
1586 ts_sec_abs = ts_sec;
1587 ts_nsec_abs = -ts_nsec;
1588 } else if (ts_sec < 0 && ts_nsec > 0) {
1589 is_negative = true;
1590 ts_sec_abs = -(ts_sec + 1);
1591 ts_nsec_abs = NSEC_PER_SEC - ts_nsec;
1592 } else if (ts_sec < 0 && ts_nsec == 0) {
1593 is_negative = true;
1594 ts_sec_abs = -ts_sec;
1595 ts_nsec_abs = ts_nsec;
1596 } else { /* (ts_sec < 0 && ts_nsec < 0) */
1597 is_negative = true;
1598 ts_sec_abs = -ts_sec;
1599 ts_nsec_abs = -ts_nsec;
1600 }
1601
1602 ret = asprintf(&s_ret, "%s%" PRId64 ".%09" PRId64,
1603 is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs);
1604 if (ret < 0) {
1605 s_ret = NULL;
1606 }
1607 return s_ret;
1608 }
1609
1610 static
1611 int cmd_run_ctx_connect_upstream_port_to_downstream_component(
1612 struct cmd_run_ctx *ctx,
1613 const bt_component *upstream_comp,
1614 const bt_port_output *out_upstream_port,
1615 struct bt_config_connection *cfg_conn)
1616 {
1617 typedef uint64_t (*input_port_count_func_t)(void *);
1618 typedef const bt_port_input *(*borrow_input_port_by_index_func_t)(
1619 const void *, uint64_t);
1620 const bt_port *upstream_port =
1621 bt_port_output_as_port_const(out_upstream_port);
1622
1623 int ret = 0;
1624 GQuark downstreamp_comp_name_quark;
1625 void *downstream_comp;
1626 uint64_t downstream_port_count;
1627 uint64_t i;
1628 input_port_count_func_t port_count_fn;
1629 borrow_input_port_by_index_func_t port_by_index_fn;
1630 bt_graph_connect_ports_status connect_ports_status =
1631 BT_GRAPH_CONNECT_PORTS_STATUS_OK;
1632 bool insert_trimmer = false;
1633 bt_value *trimmer_params = NULL;
1634 char *intersection_begin = NULL;
1635 char *intersection_end = NULL;
1636 const bt_component_filter *trimmer = NULL;
1637 const bt_component_class_filter *trimmer_class = NULL;
1638 const bt_port_input *trimmer_input = NULL;
1639 const bt_port_output *trimmer_output = NULL;
1640
1641 if (ctx->intersections &&
1642 bt_component_get_class_type(upstream_comp) ==
1643 BT_COMPONENT_CLASS_TYPE_SOURCE) {
1644 struct trace_range *range;
1645 struct port_id port_id = {
1646 .instance_name = (char *) bt_component_get_name(upstream_comp),
1647 .port_name = (char *) bt_port_get_name(upstream_port)
1648 };
1649
1650 if (!port_id.instance_name || !port_id.port_name) {
1651 goto error;
1652 }
1653
1654 range = (struct trace_range *) g_hash_table_lookup(
1655 ctx->intersections, &port_id);
1656 if (range) {
1657 bt_value_map_insert_entry_status insert_status;
1658
1659 intersection_begin = s_from_ns(
1660 range->intersection_range_begin_ns);
1661 intersection_end = s_from_ns(
1662 range->intersection_range_end_ns);
1663 if (!intersection_begin || !intersection_end) {
1664 BT_LOGE_STR("Cannot create trimmer argument timestamp string.");
1665 goto error;
1666 }
1667
1668 insert_trimmer = true;
1669 trimmer_params = bt_value_map_create();
1670 if (!trimmer_params) {
1671 goto error;
1672 }
1673
1674 insert_status = bt_value_map_insert_string_entry(
1675 trimmer_params, "begin", intersection_begin);
1676 if (insert_status < 0) {
1677 goto error;
1678 }
1679 insert_status = bt_value_map_insert_string_entry(
1680 trimmer_params,
1681 "end", intersection_end);
1682 if (insert_status < 0) {
1683 goto error;
1684 }
1685 }
1686
1687 trimmer_class = find_filter_component_class("utils", "trimmer");
1688 if (!trimmer_class) {
1689 goto error;
1690 }
1691 }
1692
1693 BT_LOGI("Connecting upstream port to the next available downstream port: "
1694 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1695 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1696 upstream_port, bt_port_get_name(upstream_port),
1697 cfg_conn->downstream_comp_name->str,
1698 cfg_conn->arg->str);
1699 downstreamp_comp_name_quark = g_quark_from_string(
1700 cfg_conn->downstream_comp_name->str);
1701 BT_ASSERT(downstreamp_comp_name_quark > 0);
1702 downstream_comp = g_hash_table_lookup(ctx->flt_components,
1703 GUINT_TO_POINTER(downstreamp_comp_name_quark));
1704 port_count_fn = (input_port_count_func_t)
1705 bt_component_filter_get_input_port_count;
1706 port_by_index_fn = (borrow_input_port_by_index_func_t)
1707 bt_component_filter_borrow_input_port_by_index_const;
1708
1709 if (!downstream_comp) {
1710 downstream_comp = g_hash_table_lookup(ctx->sink_components,
1711 GUINT_TO_POINTER(downstreamp_comp_name_quark));
1712 port_count_fn = (input_port_count_func_t)
1713 bt_component_sink_get_input_port_count;
1714 port_by_index_fn = (borrow_input_port_by_index_func_t)
1715 bt_component_sink_borrow_input_port_by_index_const;
1716 }
1717
1718 if (!downstream_comp) {
1719 BT_LOGE("Cannot find downstream component: comp-name=\"%s\", "
1720 "conn-arg=\"%s\"", cfg_conn->downstream_comp_name->str,
1721 cfg_conn->arg->str);
1722 fprintf(stderr, "Cannot create connection: cannot find downstream component: %s\n",
1723 cfg_conn->arg->str);
1724 goto error;
1725 }
1726
1727 downstream_port_count = port_count_fn(downstream_comp);
1728
1729 for (i = 0; i < downstream_port_count; i++) {
1730 const bt_port_input *in_downstream_port =
1731 port_by_index_fn(downstream_comp, i);
1732 const bt_port *downstream_port =
1733 bt_port_input_as_port_const(in_downstream_port);
1734 const char *upstream_port_name;
1735 const char *downstream_port_name;
1736
1737 BT_ASSERT(downstream_port);
1738
1739 /* Skip port if it's already connected. */
1740 if (bt_port_is_connected(downstream_port)) {
1741 BT_LOGI("Skipping downstream port: already connected: "
1742 "port-addr=%p, port-name=\"%s\"",
1743 downstream_port,
1744 bt_port_get_name(downstream_port));
1745 continue;
1746 }
1747
1748 downstream_port_name = bt_port_get_name(downstream_port);
1749 BT_ASSERT(downstream_port_name);
1750 upstream_port_name = bt_port_get_name(upstream_port);
1751 BT_ASSERT(upstream_port_name);
1752
1753 if (!bt_common_star_glob_match(
1754 cfg_conn->downstream_port_glob->str, SIZE_MAX,
1755 downstream_port_name, SIZE_MAX)) {
1756 continue;
1757 }
1758
1759 if (insert_trimmer) {
1760 /*
1761 * In order to insert the trimmer between the
1762 * two components that were being connected, we
1763 * create a connection configuration entry which
1764 * describes a connection from the trimmer's
1765 * output to the original input that was being
1766 * connected.
1767 *
1768 * Hence, the creation of the trimmer will cause
1769 * the graph "new port" listener to establish
1770 * all downstream connections as its output port
1771 * is connected. We will then establish the
1772 * connection between the original upstream
1773 * source and the trimmer.
1774 */
1775 char *trimmer_name = NULL;
1776 bt_graph_add_component_status add_comp_status;
1777
1778 ret = asprintf(&trimmer_name,
1779 "stream-intersection-trimmer-%s",
1780 upstream_port_name);
1781 if (ret < 0) {
1782 goto error;
1783 }
1784 ret = 0;
1785
1786 ctx->connect_ports = false;
1787 add_comp_status = bt_graph_add_filter_component(
1788 ctx->graph, trimmer_class, trimmer_name,
1789 trimmer_params, ctx->cfg->log_level,
1790 &trimmer);
1791 free(trimmer_name);
1792 if (add_comp_status !=
1793 BT_GRAPH_ADD_COMPONENT_STATUS_OK) {
1794 goto error;
1795 }
1796 BT_ASSERT(trimmer);
1797
1798 trimmer_input =
1799 bt_component_filter_borrow_input_port_by_index_const(
1800 trimmer, 0);
1801 if (!trimmer_input) {
1802 goto error;
1803 }
1804 trimmer_output =
1805 bt_component_filter_borrow_output_port_by_index_const(
1806 trimmer, 0);
1807 if (!trimmer_output) {
1808 goto error;
1809 }
1810
1811 /*
1812 * Replace the current downstream port by the trimmer's
1813 * upstream port.
1814 */
1815 in_downstream_port = trimmer_input;
1816 downstream_port =
1817 bt_port_input_as_port_const(in_downstream_port);
1818 downstream_port_name = bt_port_get_name(
1819 downstream_port);
1820 BT_ASSERT(downstream_port_name);
1821 }
1822
1823 /* We have a winner! */
1824 connect_ports_status = bt_graph_connect_ports(ctx->graph,
1825 out_upstream_port, in_downstream_port, NULL);
1826 downstream_port = NULL;
1827 switch (connect_ports_status) {
1828 case BT_GRAPH_CONNECT_PORTS_STATUS_OK:
1829 break;
1830 case BT_GRAPH_CONNECT_PORTS_STATUS_CANCELED:
1831 BT_LOGI_STR("Graph was canceled by user.");
1832 break;
1833 default:
1834 BT_LOGE("Cannot create connection: graph refuses to connect ports: "
1835 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1836 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1837 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1838 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1839 "conn-arg=\"%s\"",
1840 upstream_comp, bt_component_get_name(upstream_comp),
1841 upstream_port, bt_port_get_name(upstream_port),
1842 downstream_comp, cfg_conn->downstream_comp_name->str,
1843 downstream_port, downstream_port_name,
1844 cfg_conn->arg->str);
1845 fprintf(stderr,
1846 "Cannot create connection: graph refuses to connect ports (`%s` to `%s`): %s\n",
1847 bt_port_get_name(upstream_port),
1848 downstream_port_name,
1849 cfg_conn->arg->str);
1850 goto error;
1851 }
1852
1853 BT_LOGI("Connected component ports: "
1854 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1855 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1856 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1857 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1858 "conn-arg=\"%s\"",
1859 upstream_comp, bt_component_get_name(upstream_comp),
1860 upstream_port, bt_port_get_name(upstream_port),
1861 downstream_comp, cfg_conn->downstream_comp_name->str,
1862 downstream_port, downstream_port_name,
1863 cfg_conn->arg->str);
1864
1865 if (insert_trimmer) {
1866 /*
1867 * The first connection, from the source to the trimmer,
1868 * has been done. We now connect the trimmer to the
1869 * original downstream port.
1870 */
1871 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1872 ctx,
1873 bt_component_filter_as_component_const(trimmer),
1874 trimmer_output, cfg_conn);
1875 if (ret) {
1876 goto error;
1877 }
1878 ctx->connect_ports = true;
1879 }
1880
1881 /*
1882 * We found a matching downstream port: the search is
1883 * over.
1884 */
1885 goto end;
1886 }
1887
1888 /* No downstream port found */
1889 BT_LOGE("Cannot create connection: cannot find a matching downstream port for upstream port: "
1890 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1891 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1892 upstream_port, bt_port_get_name(upstream_port),
1893 cfg_conn->downstream_comp_name->str,
1894 cfg_conn->arg->str);
1895 fprintf(stderr,
1896 "Cannot create connection: cannot find a matching downstream port for upstream port `%s`: %s\n",
1897 bt_port_get_name(upstream_port), cfg_conn->arg->str);
1898
1899 error:
1900 ret = -1;
1901
1902 end:
1903 free(intersection_begin);
1904 free(intersection_end);
1905 BT_VALUE_PUT_REF_AND_RESET(trimmer_params);
1906 BT_COMPONENT_CLASS_FILTER_PUT_REF_AND_RESET(trimmer_class);
1907 BT_COMPONENT_FILTER_PUT_REF_AND_RESET(trimmer);
1908 return ret;
1909 }
1910
1911 static
1912 int cmd_run_ctx_connect_upstream_port(struct cmd_run_ctx *ctx,
1913 const bt_port_output *upstream_port)
1914 {
1915 int ret = 0;
1916 const char *upstream_port_name;
1917 const char *upstream_comp_name;
1918 const bt_component *upstream_comp = NULL;
1919 size_t i;
1920
1921 BT_ASSERT(ctx);
1922 BT_ASSERT(upstream_port);
1923 upstream_port_name = bt_port_get_name(
1924 bt_port_output_as_port_const(upstream_port));
1925 BT_ASSERT(upstream_port_name);
1926 upstream_comp = bt_port_borrow_component_const(
1927 bt_port_output_as_port_const(upstream_port));
1928 if (!upstream_comp) {
1929 BT_LOGW("Upstream port to connect is not part of a component: "
1930 "port-addr=%p, port-name=\"%s\"",
1931 upstream_port, upstream_port_name);
1932 ret = -1;
1933 goto end;
1934 }
1935
1936 upstream_comp_name = bt_component_get_name(upstream_comp);
1937 BT_ASSERT(upstream_comp_name);
1938 BT_LOGI("Connecting upstream port: comp-addr=%p, comp-name=\"%s\", "
1939 "port-addr=%p, port-name=\"%s\"",
1940 upstream_comp, upstream_comp_name,
1941 upstream_port, upstream_port_name);
1942
1943 for (i = 0; i < ctx->cfg->cmd_data.run.connections->len; i++) {
1944 struct bt_config_connection *cfg_conn =
1945 g_ptr_array_index(
1946 ctx->cfg->cmd_data.run.connections, i);
1947
1948 if (strcmp(cfg_conn->upstream_comp_name->str,
1949 upstream_comp_name)) {
1950 continue;
1951 }
1952
1953 if (!bt_common_star_glob_match(
1954 cfg_conn->upstream_port_glob->str,
1955 SIZE_MAX, upstream_port_name, SIZE_MAX)) {
1956 continue;
1957 }
1958
1959 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1960 ctx, upstream_comp, upstream_port, cfg_conn);
1961 if (ret) {
1962 BT_LOGE("Cannot connect upstream port: "
1963 "port-addr=%p, port-name=\"%s\"",
1964 upstream_port,
1965 upstream_port_name);
1966 fprintf(stderr,
1967 "Cannot connect port `%s` of component `%s` to a downstream port: %s\n",
1968 upstream_port_name,
1969 upstream_comp_name,
1970 cfg_conn->arg->str);
1971 goto error;
1972 }
1973 goto end;
1974 }
1975
1976 BT_LOGE("Cannot connect upstream port: port does not match any connection argument: "
1977 "port-addr=%p, port-name=\"%s\"", upstream_port,
1978 upstream_port_name);
1979 fprintf(stderr,
1980 "Cannot create connection: upstream port `%s` does not match any connection\n",
1981 upstream_port_name);
1982
1983 error:
1984 ret = -1;
1985
1986 end:
1987 return ret;
1988 }
1989
1990 static
1991 bt_graph_listener_func_status
1992 graph_output_port_added_listener(struct cmd_run_ctx *ctx,
1993 const bt_port_output *out_port)
1994 {
1995 const bt_component *comp;
1996 const bt_port *port = bt_port_output_as_port_const(out_port);
1997 bt_graph_listener_func_status ret =
1998 BT_GRAPH_LISTENER_FUNC_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_FUNC_STATUS_ERROR;
2024 goto end;
2025 }
2026
2027 end:
2028 return ret;
2029 }
2030
2031 static
2032 bt_graph_listener_func_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_func_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_add_component_status add_comp_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 add_comp_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 (add_comp_status != BT_GRAPH_ADD_COMPONENT_STATUS_OK) {
2124 BT_LOGE_STR("Cannot add \"port added\" listener to graph.");
2125 goto error;
2126 }
2127
2128 add_comp_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 (add_comp_status != BT_GRAPH_ADD_COMPONENT_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_TRACE);
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
2572 int cmd_run(struct bt_config *cfg)
2573 {
2574 int ret = 0;
2575 struct cmd_run_ctx ctx = { 0 };
2576
2577 /* Initialize the command's context and the graph object */
2578 if (cmd_run_ctx_init(&ctx, cfg)) {
2579 BT_LOGE_STR("Cannot initialize the command's context.");
2580 fprintf(stderr, "Cannot initialize the command's context\n");
2581 goto error;
2582 }
2583
2584 if (canceled) {
2585 BT_LOGI_STR("Canceled by user before creating components.");
2586 goto error;
2587 }
2588
2589 BT_LOGI_STR("Creating components.");
2590
2591 /* Create the requested component instances */
2592 if (cmd_run_ctx_create_components(&ctx)) {
2593 BT_LOGE_STR("Cannot create components.");
2594 fprintf(stderr, "Cannot create components\n");
2595 goto error;
2596 }
2597
2598 if (canceled) {
2599 BT_LOGI_STR("Canceled by user before connecting components.");
2600 goto error;
2601 }
2602
2603 BT_LOGI_STR("Connecting components.");
2604
2605 /* Connect the initially visible component ports */
2606 if (cmd_run_ctx_connect_ports(&ctx)) {
2607 BT_LOGE_STR("Cannot connect initial component ports.");
2608 fprintf(stderr, "Cannot connect initial component ports\n");
2609 goto error;
2610 }
2611
2612 if (canceled) {
2613 BT_LOGI_STR("Canceled by user before running the graph.");
2614 goto error;
2615 }
2616
2617 BT_LOGI_STR("Running the graph.");
2618
2619 /* Run the graph */
2620 while (true) {
2621 bt_graph_run_status run_status = bt_graph_run(ctx.graph);
2622
2623 /*
2624 * Reset console in case something messed with console
2625 * codes during the graph's execution.
2626 */
2627 printf("%s", bt_common_color_reset());
2628 fflush(stdout);
2629 fprintf(stderr, "%s", bt_common_color_reset());
2630 BT_LOGT("bt_graph_run() returned: status=%s",
2631 bt_common_func_status_string(run_status));
2632
2633 switch (run_status) {
2634 case BT_GRAPH_RUN_STATUS_OK:
2635 break;
2636 case BT_GRAPH_RUN_STATUS_CANCELED:
2637 BT_LOGI_STR("Graph was canceled by user.");
2638 goto error;
2639 case BT_GRAPH_RUN_STATUS_AGAIN:
2640 if (bt_graph_is_canceled(ctx.graph)) {
2641 BT_LOGI_STR("Graph was canceled by user.");
2642 goto error;
2643 }
2644
2645 if (cfg->cmd_data.run.retry_duration_us > 0) {
2646 BT_LOGT("Got BT_GRAPH_RUN_STATUS_AGAIN: sleeping: "
2647 "time-us=%" PRIu64,
2648 cfg->cmd_data.run.retry_duration_us);
2649
2650 if (usleep(cfg->cmd_data.run.retry_duration_us)) {
2651 if (bt_graph_is_canceled(ctx.graph)) {
2652 BT_LOGI_STR("Graph was canceled by user.");
2653 goto error;
2654 }
2655 }
2656 }
2657 break;
2658 case BT_GRAPH_RUN_STATUS_END:
2659 goto end;
2660 default:
2661 BT_LOGE_STR("Graph failed to complete successfully");
2662 fprintf(stderr, "Graph failed to complete successfully\n");
2663 goto error;
2664 }
2665 }
2666
2667 goto end;
2668
2669 error:
2670 if (ret == 0) {
2671 ret = -1;
2672 }
2673
2674 end:
2675 cmd_run_ctx_destroy(&ctx);
2676 return ret;
2677 }
2678
2679 static
2680 void warn_command_name_and_directory_clash(struct bt_config *cfg)
2681 {
2682 const char *env_clash;
2683
2684 if (!cfg->command_name) {
2685 return;
2686 }
2687
2688 env_clash = getenv(ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH);
2689 if (env_clash && strcmp(env_clash, "0") == 0) {
2690 return;
2691 }
2692
2693 if (g_file_test(cfg->command_name,
2694 G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) {
2695 fprintf(stderr, "\nNOTE: The `%s` command was executed. If you meant to convert a\n",
2696 cfg->command_name);
2697 fprintf(stderr, "trace located in the local `%s` directory, please use:\n",
2698 cfg->command_name);
2699 fprintf(stderr, "\n");
2700 fprintf(stderr, " babeltrace2 convert %s [OPTIONS]\n",
2701 cfg->command_name);
2702 }
2703 }
2704
2705 static
2706 void init_log_level(void)
2707 {
2708 bt_cli_log_level = bt_log_get_level_from_env(ENV_BABELTRACE_CLI_LOG_LEVEL);
2709 }
2710
2711 static
2712 void set_auto_log_levels(struct bt_config *cfg)
2713 {
2714 const char **env_var_name;
2715
2716 /*
2717 * Override the configuration's default log level if
2718 * BABELTRACE_VERBOSE or BABELTRACE_DEBUG environment variables
2719 * are found for backward compatibility with legacy Babetrace 1.
2720 */
2721 if (getenv("BABELTRACE_DEBUG") &&
2722 strcmp(getenv("BABELTRACE_DEBUG"), "1") == 0) {
2723 cfg->log_level = BT_LOG_TRACE;
2724 } else if (getenv("BABELTRACE_VERBOSE") &&
2725 strcmp(getenv("BABELTRACE_VERBOSE"), "1") == 0) {
2726 cfg->log_level = BT_LOG_INFO;
2727 }
2728
2729 /*
2730 * Set log levels according to --debug or --verbose. For
2731 * backward compatibility, --debug is more verbose than
2732 * --verbose. So:
2733 *
2734 * --verbose: INFO log level
2735 * --debug: TRACE log level (includes DEBUG, which is
2736 * is less verbose than TRACE in the internal
2737 * logging framework)
2738 */
2739 if (!getenv("LIBBABELTRACE2_INIT_LOG_LEVEL")) {
2740 if (cfg->verbose) {
2741 bt_logging_set_global_level(BT_LOG_INFO);
2742 } else if (cfg->debug) {
2743 bt_logging_set_global_level(BT_LOG_TRACE);
2744 } else {
2745 /*
2746 * Set library's default log level if not
2747 * explicitly specified.
2748 */
2749 bt_logging_set_global_level(cfg->log_level);
2750 }
2751 }
2752
2753 if (!getenv(ENV_BABELTRACE_CLI_LOG_LEVEL)) {
2754 if (cfg->verbose) {
2755 bt_cli_log_level = BT_LOG_INFO;
2756 } else if (cfg->debug) {
2757 bt_cli_log_level = BT_LOG_TRACE;
2758 } else {
2759 /*
2760 * Set CLI's default log level if not explicitly
2761 * specified.
2762 */
2763 bt_cli_log_level = cfg->log_level;
2764 }
2765 }
2766
2767 env_var_name = log_level_env_var_names;
2768
2769 while (*env_var_name) {
2770 if (!getenv(*env_var_name)) {
2771 if (cfg->verbose) {
2772 g_setenv(*env_var_name, "INFO", 1);
2773 } else if (cfg->debug) {
2774 g_setenv(*env_var_name, "TRACE", 1);
2775 } else {
2776 char val[2] = { 0 };
2777
2778 /*
2779 * Set module's default log level if not
2780 * explicitly specified.
2781 */
2782 val[0] = bt_log_get_letter_from_level(
2783 cfg->log_level);
2784 g_setenv(*env_var_name, val, 1);
2785 }
2786 }
2787
2788 env_var_name++;
2789 }
2790 }
2791
2792 int main(int argc, const char **argv)
2793 {
2794 int ret;
2795 int retcode;
2796 struct bt_config *cfg;
2797
2798 init_log_level();
2799 set_signal_handler();
2800 init_static_data();
2801 cfg = bt_config_cli_args_create_with_default(argc, argv, &retcode);
2802
2803 if (retcode < 0) {
2804 /* Quit without errors; typically usage/version */
2805 retcode = 0;
2806 BT_LOGI_STR("Quitting without errors.");
2807 goto end;
2808 }
2809
2810 if (retcode > 0) {
2811 BT_LOGE("Command-line error: retcode=%d", retcode);
2812 goto end;
2813 }
2814
2815 if (!cfg) {
2816 BT_LOGE_STR("Failed to create a valid Babeltrace configuration.");
2817 fprintf(stderr, "Failed to create Babeltrace configuration\n");
2818 retcode = 1;
2819 goto end;
2820 }
2821
2822 set_auto_log_levels(cfg);
2823 print_cfg(cfg);
2824
2825 if (cfg->command_needs_plugins) {
2826 ret = load_all_plugins(cfg->plugin_paths);
2827 if (ret) {
2828 BT_LOGE("Failed to load plugins: ret=%d", ret);
2829 retcode = 1;
2830 goto end;
2831 }
2832 }
2833
2834 BT_LOGI("Executing command: cmd=%d, command-name=\"%s\"",
2835 cfg->command, cfg->command_name);
2836
2837 switch (cfg->command) {
2838 case BT_CONFIG_COMMAND_RUN:
2839 ret = cmd_run(cfg);
2840 break;
2841 case BT_CONFIG_COMMAND_LIST_PLUGINS:
2842 ret = cmd_list_plugins(cfg);
2843 break;
2844 case BT_CONFIG_COMMAND_HELP:
2845 ret = cmd_help(cfg);
2846 break;
2847 case BT_CONFIG_COMMAND_QUERY:
2848 ret = cmd_query(cfg);
2849 break;
2850 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
2851 ret = cmd_print_ctf_metadata(cfg);
2852 break;
2853 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
2854 ret = cmd_print_lttng_live_sessions(cfg);
2855 break;
2856 default:
2857 BT_LOGF("Invalid/unknown command: cmd=%d", cfg->command);
2858 abort();
2859 }
2860
2861 BT_LOGI("Command completed: cmd=%d, command-name=\"%s\", ret=%d",
2862 cfg->command, cfg->command_name, ret);
2863 warn_command_name_and_directory_clash(cfg);
2864 retcode = ret ? 1 : 0;
2865
2866 end:
2867 BT_OBJECT_PUT_REF_AND_RESET(cfg);
2868 fini_static_data();
2869 return retcode;
2870 }
BabelTrace - Trace Format Babel Tower
This page took 0.147305 seconds and 4 git commands to generate.