projects / babeltrace.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
lib: set component's initial log level when adding it to the graph
[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_COMMON_LOG_LEVEL",
53 "BABELTRACE_COMPAT_LOG_LEVEL",
54 "BABELTRACE_CTFSER_LOG_LEVEL",
55 "BABELTRACE_FD_CACHE_LOG_LEVEL",
56 "BABELTRACE_FLT_LTTNG_UTILS_DEBUG_INFO_LOG_LEVEL",
57 "BABELTRACE_FLT_UTILS_COUNTER_LOG_LEVEL",
58 "BABELTRACE_FLT_UTILS_MUXER_LOG_LEVEL",
59 "BABELTRACE_FLT_UTILS_TRIMMER_LOG_LEVEL",
60 "BABELTRACE_PLUGIN_CTF_BFCR_LOG_LEVEL",
61 "BABELTRACE_PLUGIN_CTF_METADATA_LOG_LEVEL",
62 "BABELTRACE_PLUGIN_CTF_MSG_ITER_LOG_LEVEL",
63 "BABELTRACE_PLUGIN_CTF_UTILS_LOG_LEVEL",
64 "BABELTRACE_PYTHON_BT2_LOG_LEVEL",
65 "BABELTRACE_SINK_CTF_FS_LOG_LEVEL",
66 "BABELTRACE_SINK_TEXT_PRETTY_LOG_LEVEL",
67 "BABELTRACE_SINK_TEXT_DETAILS_LOG_LEVEL",
68 "BABELTRACE_SRC_CTF_FS_LOG_LEVEL",
69 "BABELTRACE_SRC_CTF_LTTNG_LIVE_LOG_LEVEL",
70 "BABELTRACE_SRC_TEXT_DMESG_LOG_LEVEL",
71 NULL,
72 };
73
74 /* Application's processing graph (weak) */
75 static bt_graph *the_graph;
76 static bt_query_executor *the_query_executor;
77 static bool canceled = false;
78
79 GPtrArray *loaded_plugins;
80
81 #ifdef __MINGW32__
82
83 #include <windows.h>
84
85 static
86 BOOL WINAPI signal_handler(DWORD signal) {
87 if (the_graph) {
88 bt_graph_cancel(the_graph);
89 }
90
91 canceled = true;
92
93 return TRUE;
94 }
95
96 static
97 void set_signal_handler(void)
98 {
99 if (!SetConsoleCtrlHandler(signal_handler, TRUE)) {
100 BT_LOGE("Failed to set the Ctrl+C handler.");
101 }
102 }
103
104 #else /* __MINGW32__ */
105
106 static
107 void signal_handler(int signum)
108 {
109 if (signum != SIGINT) {
110 return;
111 }
112
113 if (the_graph) {
114 bt_graph_cancel(the_graph);
115 }
116
117 if (the_query_executor) {
118 bt_query_executor_cancel(the_query_executor);
119 }
120
121 canceled = true;
122 }
123
124 static
125 void set_signal_handler(void)
126 {
127 struct sigaction new_action, old_action;
128
129 new_action.sa_handler = signal_handler;
130 sigemptyset(&new_action.sa_mask);
131 new_action.sa_flags = 0;
132 sigaction(SIGINT, NULL, &old_action);
133
134 if (old_action.sa_handler != SIG_IGN) {
135 sigaction(SIGINT, &new_action, NULL);
136 }
137 }
138
139 #endif /* __MINGW32__ */
140
141 static
142 void init_static_data(void)
143 {
144 loaded_plugins = g_ptr_array_new_with_free_func(
145 (GDestroyNotify) bt_object_put_ref);
146 }
147
148 static
149 void fini_static_data(void)
150 {
151 g_ptr_array_free(loaded_plugins, TRUE);
152 }
153
154 static
155 int create_the_query_executor(void)
156 {
157 int ret = 0;
158
159 the_query_executor = bt_query_executor_create();
160 if (!the_query_executor) {
161 BT_LOGE_STR("Cannot create a query executor.");
162 ret = -1;
163 }
164
165 return ret;
166 }
167
168 static
169 void destroy_the_query_executor(void)
170 {
171 BT_QUERY_EXECUTOR_PUT_REF_AND_RESET(the_query_executor);
172 }
173
174 static
175 int query(const bt_component_class *comp_cls, const char *obj,
176 const bt_value *params, const bt_value **user_result,
177 const char **fail_reason)
178 {
179 const bt_value *result = NULL;
180 bt_query_executor_status status;
181 *fail_reason = "unknown error";
182 int ret = 0;
183
184 BT_ASSERT(fail_reason);
185 BT_ASSERT(user_result);
186 ret = create_the_query_executor();
187 if (ret) {
188 /* create_the_query_executor() logs errors */
189 goto end;
190 }
191
192 if (canceled) {
193 BT_LOGI("Canceled by user before executing the query: "
194 "comp-cls-addr=%p, comp-cls-name=\"%s\", "
195 "query-obj=\"%s\"", comp_cls,
196 bt_component_class_get_name(comp_cls), obj);
197 *fail_reason = "canceled by user";
198 goto error;
199 }
200
201 while (true) {
202 status = bt_query_executor_query(the_query_executor,
203 comp_cls, obj, params, &result);
204 switch (status) {
205 case BT_QUERY_EXECUTOR_STATUS_OK:
206 goto ok;
207 case BT_QUERY_EXECUTOR_STATUS_AGAIN:
208 {
209 const uint64_t sleep_time_us = 100000;
210
211 /* Wait 100 ms and retry */
212 BT_LOGD("Got BT_QUERY_EXECUTOR_STATUS_AGAIN: sleeping: "
213 "time-us=%" PRIu64, sleep_time_us);
214
215 if (usleep(sleep_time_us)) {
216 if (bt_query_executor_is_canceled(the_query_executor)) {
217 BT_LOGI("Query was canceled by user: "
218 "comp-cls-addr=%p, comp-cls-name=\"%s\", "
219 "query-obj=\"%s\"", comp_cls,
220 bt_component_class_get_name(comp_cls),
221 obj);
222 *fail_reason = "canceled by user";
223 goto error;
224 }
225 }
226
227 continue;
228 }
229 case BT_QUERY_EXECUTOR_STATUS_CANCELED:
230 *fail_reason = "canceled by user";
231 goto error;
232 case BT_QUERY_EXECUTOR_STATUS_ERROR:
233 goto error;
234 case BT_QUERY_EXECUTOR_STATUS_INVALID_OBJECT:
235 *fail_reason = "invalid or unknown query object";
236 goto error;
237 case BT_QUERY_EXECUTOR_STATUS_INVALID_PARAMS:
238 *fail_reason = "invalid query parameters";
239 goto error;
240 case BT_QUERY_EXECUTOR_STATUS_UNSUPPORTED:
241 *fail_reason = "unsupported action";
242 goto error;
243 case BT_QUERY_EXECUTOR_STATUS_NOMEM:
244 *fail_reason = "not enough memory";
245 goto error;
246 default:
247 BT_LOGF("Unknown query status: status=%d", status);
248 abort();
249 }
250 }
251
252 ok:
253 *user_result = result;
254 result = NULL;
255 goto end;
256
257 error:
258 ret = -1;
259
260 end:
261 destroy_the_query_executor();
262 bt_value_put_ref(result);
263 return ret;
264 }
265
266 static
267 const bt_plugin *find_plugin(const char *name)
268 {
269 int i;
270 const bt_plugin *plugin = NULL;
271
272 BT_ASSERT(name);
273 BT_LOGI("Finding plugin: name=\"%s\"", name);
274
275 for (i = 0; i < loaded_plugins->len; i++) {
276 plugin = g_ptr_array_index(loaded_plugins, i);
277
278 if (strcmp(name, bt_plugin_get_name(plugin)) == 0) {
279 break;
280 }
281
282 plugin = NULL;
283 }
284
285 if (plugin) {
286 BT_LOGI("Found plugin: name=\"%s\", plugin-addr=%p",
287 name, plugin);
288 } else {
289 BT_LOGI("Cannot find plugin: name=\"%s\"", name);
290 }
291
292 bt_plugin_get_ref(plugin);
293 return plugin;
294 }
295
296 typedef const void *(*plugin_borrow_comp_cls_func_t)(
297 const bt_plugin *, const char *);
298
299 static
300 const void *find_component_class_from_plugin(const char *plugin_name,
301 const char *comp_class_name,
302 plugin_borrow_comp_cls_func_t plugin_borrow_comp_cls_func)
303 {
304 const void *comp_class = NULL;
305 const bt_plugin *plugin;
306
307 BT_LOGI("Finding component class: plugin-name=\"%s\", "
308 "comp-cls-name=\"%s\"", plugin_name, comp_class_name);
309
310 plugin = find_plugin(plugin_name);
311 if (!plugin) {
312 goto end;
313 }
314
315 comp_class = plugin_borrow_comp_cls_func(plugin, comp_class_name);
316 bt_object_get_ref(comp_class);
317 BT_PLUGIN_PUT_REF_AND_RESET(plugin);
318
319 end:
320 if (comp_class) {
321 BT_LOGI("Found component class: plugin-name=\"%s\", "
322 "comp-cls-name=\"%s\"", plugin_name, comp_class_name);
323 } else {
324 BT_LOGI("Cannot find source component class: "
325 "plugin-name=\"%s\", comp-cls-name=\"%s\"",
326 plugin_name, comp_class_name);
327 }
328
329 return comp_class;
330 }
331
332 static
333 const bt_component_class_source *find_source_component_class(
334 const char *plugin_name, const char *comp_class_name)
335 {
336 return (const void *) find_component_class_from_plugin(
337 plugin_name, comp_class_name,
338 (plugin_borrow_comp_cls_func_t)
339 bt_plugin_borrow_source_component_class_by_name_const);
340 }
341
342 static
343 const bt_component_class_filter *find_filter_component_class(
344 const char *plugin_name, const char *comp_class_name)
345 {
346 return (const void *) find_component_class_from_plugin(
347 plugin_name, comp_class_name,
348 (plugin_borrow_comp_cls_func_t)
349 bt_plugin_borrow_filter_component_class_by_name_const);
350 }
351
352 static
353 const bt_component_class_sink *find_sink_component_class(
354 const char *plugin_name, const char *comp_class_name)
355 {
356 return (const void *) find_component_class_from_plugin(plugin_name,
357 comp_class_name,
358 (plugin_borrow_comp_cls_func_t)
359 bt_plugin_borrow_sink_component_class_by_name_const);
360 }
361
362 static
363 const bt_component_class *find_component_class(const char *plugin_name,
364 const char *comp_class_name,
365 bt_component_class_type comp_class_type)
366 {
367 const bt_component_class *comp_cls = NULL;
368
369 switch (comp_class_type) {
370 case BT_COMPONENT_CLASS_TYPE_SOURCE:
371 comp_cls = bt_component_class_source_as_component_class_const(find_source_component_class(plugin_name, comp_class_name));
372 break;
373 case BT_COMPONENT_CLASS_TYPE_FILTER:
374 comp_cls = bt_component_class_filter_as_component_class_const(find_filter_component_class(plugin_name, comp_class_name));
375 break;
376 case BT_COMPONENT_CLASS_TYPE_SINK:
377 comp_cls = bt_component_class_sink_as_component_class_const(find_sink_component_class(plugin_name, comp_class_name));
378 break;
379 default:
380 abort();
381 }
382
383 return comp_cls;
384 }
385
386 static
387 void print_indent(FILE *fp, size_t indent)
388 {
389 size_t i;
390
391 for (i = 0; i < indent; i++) {
392 fprintf(fp, " ");
393 }
394 }
395
396 static
397 const char *component_type_str(bt_component_class_type type)
398 {
399 switch (type) {
400 case BT_COMPONENT_CLASS_TYPE_SOURCE:
401 return "source";
402 case BT_COMPONENT_CLASS_TYPE_SINK:
403 return "sink";
404 case BT_COMPONENT_CLASS_TYPE_FILTER:
405 return "filter";
406 default:
407 return "(unknown)";
408 }
409 }
410
411 static
412 void print_plugin_comp_cls_opt(FILE *fh, const char *plugin_name,
413 const char *comp_cls_name, bt_component_class_type type)
414 {
415 GString *shell_plugin_name = NULL;
416 GString *shell_comp_cls_name = NULL;
417
418 shell_plugin_name = bt_common_shell_quote(plugin_name, false);
419 if (!shell_plugin_name) {
420 goto end;
421 }
422
423 shell_comp_cls_name = bt_common_shell_quote(comp_cls_name, false);
424 if (!shell_comp_cls_name) {
425 goto end;
426 }
427
428 fprintf(fh, "'%s%s%s%s.%s%s%s.%s%s%s'",
429 bt_common_color_bold(),
430 bt_common_color_fg_cyan(),
431 component_type_str(type),
432 bt_common_color_fg_default(),
433 bt_common_color_fg_blue(),
434 shell_plugin_name->str,
435 bt_common_color_fg_default(),
436 bt_common_color_fg_yellow(),
437 shell_comp_cls_name->str,
438 bt_common_color_reset());
439
440 end:
441 if (shell_plugin_name) {
442 g_string_free(shell_plugin_name, TRUE);
443 }
444
445 if (shell_comp_cls_name) {
446 g_string_free(shell_comp_cls_name, TRUE);
447 }
448 }
449
450 static
451 void print_value(FILE *, const bt_value *, size_t);
452
453 static
454 void print_value_rec(FILE *, const bt_value *, size_t);
455
456 struct print_map_value_data {
457 size_t indent;
458 FILE *fp;
459 };
460
461 static
462 bt_bool print_map_value(const char *key, const bt_value *object,
463 void *data)
464 {
465 struct print_map_value_data *print_map_value_data = data;
466
467 print_indent(print_map_value_data->fp, print_map_value_data->indent);
468 fprintf(print_map_value_data->fp, "%s: ", key);
469 BT_ASSERT(object);
470
471 if (bt_value_is_array(object) &&
472 bt_value_array_is_empty(object)) {
473 fprintf(print_map_value_data->fp, "[ ]\n");
474 return true;
475 }
476
477 if (bt_value_is_map(object) &&
478 bt_value_map_is_empty(object)) {
479 fprintf(print_map_value_data->fp, "{ }\n");
480 return true;
481 }
482
483 if (bt_value_is_array(object) ||
484 bt_value_is_map(object)) {
485 fprintf(print_map_value_data->fp, "\n");
486 }
487
488 print_value_rec(print_map_value_data->fp, object,
489 print_map_value_data->indent + 2);
490 return BT_TRUE;
491 }
492
493 static
494 void print_value_rec(FILE *fp, const bt_value *value, size_t indent)
495 {
496 bt_bool bool_val;
497 int64_t int_val;
498 uint64_t uint_val;
499 double dbl_val;
500 const char *str_val;
501 int size;
502 int i;
503
504 if (!value) {
505 return;
506 }
507
508 switch (bt_value_get_type(value)) {
509 case BT_VALUE_TYPE_NULL:
510 fprintf(fp, "%snull%s\n", bt_common_color_bold(),
511 bt_common_color_reset());
512 break;
513 case BT_VALUE_TYPE_BOOL:
514 bool_val = bt_value_bool_get(value);
515 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
516 bt_common_color_fg_cyan(), bool_val ? "yes" : "no",
517 bt_common_color_reset());
518 break;
519 case BT_VALUE_TYPE_UNSIGNED_INTEGER:
520 uint_val = bt_value_unsigned_integer_get(value);
521 fprintf(fp, "%s%s%" PRIu64 "%s\n", bt_common_color_bold(),
522 bt_common_color_fg_red(), uint_val,
523 bt_common_color_reset());
524 break;
525 case BT_VALUE_TYPE_SIGNED_INTEGER:
526 int_val = bt_value_signed_integer_get(value);
527 fprintf(fp, "%s%s%" PRId64 "%s\n", bt_common_color_bold(),
528 bt_common_color_fg_red(), int_val,
529 bt_common_color_reset());
530 break;
531 case BT_VALUE_TYPE_REAL:
532 dbl_val = bt_value_real_get(value);
533 fprintf(fp, "%s%s%lf%s\n", bt_common_color_bold(),
534 bt_common_color_fg_red(), dbl_val,
535 bt_common_color_reset());
536 break;
537 case BT_VALUE_TYPE_STRING:
538 str_val = bt_value_string_get(value);
539 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
540 bt_common_color_fg_green(), str_val,
541 bt_common_color_reset());
542 break;
543 case BT_VALUE_TYPE_ARRAY:
544 size = bt_value_array_get_size(value);
545 if (size < 0) {
546 goto error;
547 }
548
549 if (size == 0) {
550 print_indent(fp, indent);
551 fprintf(fp, "[ ]\n");
552 break;
553 }
554
555 for (i = 0; i < size; i++) {
556 const bt_value *element =
557 bt_value_array_borrow_element_by_index_const(
558 value, i);
559
560 if (!element) {
561 goto error;
562 }
563 print_indent(fp, indent);
564 fprintf(fp, "- ");
565
566 if (bt_value_is_array(element) &&
567 bt_value_array_is_empty(element)) {
568 fprintf(fp, "[ ]\n");
569 continue;
570 }
571
572 if (bt_value_is_map(element) &&
573 bt_value_map_is_empty(element)) {
574 fprintf(fp, "{ }\n");
575 continue;
576 }
577
578 if (bt_value_is_array(element) ||
579 bt_value_is_map(element)) {
580 fprintf(fp, "\n");
581 }
582
583 print_value_rec(fp, element, indent + 2);
584 }
585 break;
586 case BT_VALUE_TYPE_MAP:
587 {
588 struct print_map_value_data data = {
589 .indent = indent,
590 .fp = fp,
591 };
592
593 if (bt_value_map_is_empty(value)) {
594 print_indent(fp, indent);
595 fprintf(fp, "{ }\n");
596 break;
597 }
598
599 bt_value_map_foreach_entry_const(value, print_map_value, &data);
600 break;
601 }
602 default:
603 abort();
604 }
605 return;
606
607 error:
608 BT_LOGE("Error printing value of type %s.",
609 bt_common_value_type_string(bt_value_get_type(value)));
610 }
611
612 static
613 void print_value(FILE *fp, const bt_value *value, size_t indent)
614 {
615 if (!bt_value_is_array(value) && !bt_value_is_map(value)) {
616 print_indent(fp, indent);
617 }
618
619 print_value_rec(fp, value, indent);
620 }
621
622 static
623 void print_bt_config_component(struct bt_config_component *bt_config_component)
624 {
625 fprintf(stderr, " ");
626 print_plugin_comp_cls_opt(stderr, bt_config_component->plugin_name->str,
627 bt_config_component->comp_cls_name->str,
628 bt_config_component->type);
629 fprintf(stderr, ":\n");
630
631 if (bt_config_component->instance_name->len > 0) {
632 fprintf(stderr, " Name: %s\n",
633 bt_config_component->instance_name->str);
634 }
635
636 fprintf(stderr, " Parameters:\n");
637 print_value(stderr, bt_config_component->params, 8);
638 }
639
640 static
641 void print_bt_config_components(GPtrArray *array)
642 {
643 size_t i;
644
645 for (i = 0; i < array->len; i++) {
646 struct bt_config_component *cfg_component =
647 bt_config_get_component(array, i);
648 print_bt_config_component(cfg_component);
649 BT_OBJECT_PUT_REF_AND_RESET(cfg_component);
650 }
651 }
652
653 static
654 void print_plugin_paths(const bt_value *plugin_paths)
655 {
656 fprintf(stderr, " Plugin paths:\n");
657 print_value(stderr, plugin_paths, 4);
658 }
659
660 static
661 void print_cfg_run(struct bt_config *cfg)
662 {
663 size_t i;
664
665 print_plugin_paths(cfg->plugin_paths);
666 fprintf(stderr, " Source component instances:\n");
667 print_bt_config_components(cfg->cmd_data.run.sources);
668
669 if (cfg->cmd_data.run.filters->len > 0) {
670 fprintf(stderr, " Filter component instances:\n");
671 print_bt_config_components(cfg->cmd_data.run.filters);
672 }
673
674 fprintf(stderr, " Sink component instances:\n");
675 print_bt_config_components(cfg->cmd_data.run.sinks);
676 fprintf(stderr, " Connections:\n");
677
678 for (i = 0; i < cfg->cmd_data.run.connections->len; i++) {
679 struct bt_config_connection *cfg_connection =
680 g_ptr_array_index(cfg->cmd_data.run.connections,
681 i);
682
683 fprintf(stderr, " %s%s%s -> %s%s%s\n",
684 cfg_connection->upstream_comp_name->str,
685 cfg_connection->upstream_port_glob->len > 0 ? "." : "",
686 cfg_connection->upstream_port_glob->str,
687 cfg_connection->downstream_comp_name->str,
688 cfg_connection->downstream_port_glob->len > 0 ? "." : "",
689 cfg_connection->downstream_port_glob->str);
690 }
691 }
692
693 static
694 void print_cfg_list_plugins(struct bt_config *cfg)
695 {
696 print_plugin_paths(cfg->plugin_paths);
697 }
698
699 static
700 void print_cfg_help(struct bt_config *cfg)
701 {
702 print_plugin_paths(cfg->plugin_paths);
703 }
704
705 static
706 void print_cfg_print_ctf_metadata(struct bt_config *cfg)
707 {
708 print_plugin_paths(cfg->plugin_paths);
709 fprintf(stderr, " Path: %s\n",
710 cfg->cmd_data.print_ctf_metadata.path->str);
711 }
712
713 static
714 void print_cfg_print_lttng_live_sessions(struct bt_config *cfg)
715 {
716 print_plugin_paths(cfg->plugin_paths);
717 fprintf(stderr, " URL: %s\n",
718 cfg->cmd_data.print_lttng_live_sessions.url->str);
719 }
720
721 static
722 void print_cfg_query(struct bt_config *cfg)
723 {
724 print_plugin_paths(cfg->plugin_paths);
725 fprintf(stderr, " Object: `%s`\n", cfg->cmd_data.query.object->str);
726 fprintf(stderr, " Component class:\n");
727 print_bt_config_component(cfg->cmd_data.query.cfg_component);
728 }
729
730 static
731 void print_cfg(struct bt_config *cfg)
732 {
733 if (!BT_LOG_ON_INFO) {
734 return;
735 }
736
737 BT_LOGI_STR("CLI configuration:");
738 BT_LOGI(" Debug mode: %s\n", cfg->debug ? "yes" : "no");
739 BT_LOGI(" Verbose mode: %s\n", cfg->verbose ? "yes" : "no");
740
741 switch (cfg->command) {
742 case BT_CONFIG_COMMAND_RUN:
743 print_cfg_run(cfg);
744 break;
745 case BT_CONFIG_COMMAND_LIST_PLUGINS:
746 print_cfg_list_plugins(cfg);
747 break;
748 case BT_CONFIG_COMMAND_HELP:
749 print_cfg_help(cfg);
750 break;
751 case BT_CONFIG_COMMAND_QUERY:
752 print_cfg_query(cfg);
753 break;
754 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
755 print_cfg_print_ctf_metadata(cfg);
756 break;
757 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
758 print_cfg_print_lttng_live_sessions(cfg);
759 break;
760 default:
761 abort();
762 }
763 }
764
765 static
766 void add_to_loaded_plugins(const bt_plugin_set *plugin_set)
767 {
768 int64_t i;
769 int64_t count;
770
771 count = bt_plugin_set_get_plugin_count(plugin_set);
772 BT_ASSERT(count >= 0);
773
774 for (i = 0; i < count; i++) {
775 const bt_plugin *plugin =
776 bt_plugin_set_borrow_plugin_by_index_const(plugin_set, i);
777 const bt_plugin *loaded_plugin =
778 find_plugin(bt_plugin_get_name(plugin));
779
780 BT_ASSERT(plugin);
781
782 if (loaded_plugin) {
783 BT_LOGI("Not using plugin: another one already exists with the same name: "
784 "plugin-name=\"%s\", plugin-path=\"%s\", "
785 "existing-plugin-path=\"%s\"",
786 bt_plugin_get_name(plugin),
787 bt_plugin_get_path(plugin),
788 bt_plugin_get_path(loaded_plugin));
789 bt_plugin_put_ref(loaded_plugin);
790 } else {
791 /* Add to global array. */
792 BT_LOGD("Adding plugin to loaded plugins: plugin-path=\"%s\"",
793 bt_plugin_get_name(plugin));
794 bt_plugin_get_ref(plugin);
795 g_ptr_array_add(loaded_plugins, (void *) plugin);
796 }
797 }
798 }
799
800 static
801 int load_dynamic_plugins(const bt_value *plugin_paths)
802 {
803 int nr_paths, i, ret = 0;
804
805 nr_paths = bt_value_array_get_size(plugin_paths);
806 if (nr_paths < 0) {
807 BT_LOGE_STR("Cannot load dynamic plugins: no plugin path.");
808 ret = -1;
809 goto end;
810 }
811
812 BT_LOGI_STR("Loading dynamic plugins.");
813
814 for (i = 0; i < nr_paths; i++) {
815 const bt_value *plugin_path_value = NULL;
816 const char *plugin_path;
817 const bt_plugin_set *plugin_set;
818
819 plugin_path_value =
820 bt_value_array_borrow_element_by_index_const(
821 plugin_paths, i);
822 plugin_path = bt_value_string_get(plugin_path_value);
823
824 /*
825 * Skip this if the directory does not exist because
826 * bt_plugin_find_all_from_dir() expects an existing
827 * directory.
828 */
829 if (!g_file_test(plugin_path, G_FILE_TEST_IS_DIR)) {
830 BT_LOGI("Skipping nonexistent directory path: "
831 "path=\"%s\"", plugin_path);
832 continue;
833 }
834
835 plugin_set = bt_plugin_find_all_from_dir(plugin_path, false);
836 if (!plugin_set) {
837 BT_LOGI("Unable to load dynamic plugins from directory: "
838 "path=\"%s\"", plugin_path);
839 continue;
840 }
841
842 add_to_loaded_plugins(plugin_set);
843 bt_plugin_set_put_ref(plugin_set);
844 }
845 end:
846 return ret;
847 }
848
849 static
850 int load_static_plugins(void)
851 {
852 int ret = 0;
853 const bt_plugin_set *plugin_set;
854
855 BT_LOGI("Loading static plugins.");
856 plugin_set = bt_plugin_find_all_from_static();
857 if (!plugin_set) {
858 BT_LOGE("Unable to load static plugins.");
859 ret = -1;
860 goto end;
861 }
862
863 add_to_loaded_plugins(plugin_set);
864 bt_plugin_set_put_ref(plugin_set);
865 end:
866 return ret;
867 }
868
869 static
870 int load_all_plugins(const bt_value *plugin_paths)
871 {
872 int ret = 0;
873
874 if (load_dynamic_plugins(plugin_paths)) {
875 ret = -1;
876 goto end;
877 }
878
879 if (load_static_plugins()) {
880 ret = -1;
881 goto end;
882 }
883
884 BT_LOGI("Loaded all plugins: count=%u", loaded_plugins->len);
885
886 end:
887 return ret;
888 }
889
890 static
891 void print_plugin_info(const bt_plugin *plugin)
892 {
893 unsigned int major, minor, patch;
894 const char *extra;
895 bt_property_availability version_avail;
896 const char *plugin_name;
897 const char *path;
898 const char *author;
899 const char *license;
900 const char *plugin_description;
901
902 plugin_name = bt_plugin_get_name(plugin);
903 path = bt_plugin_get_path(plugin);
904 author = bt_plugin_get_author(plugin);
905 license = bt_plugin_get_license(plugin);
906 plugin_description = bt_plugin_get_description(plugin);
907 version_avail = bt_plugin_get_version(plugin, &major, &minor,
908 &patch, &extra);
909 printf("%s%s%s%s:\n", bt_common_color_bold(),
910 bt_common_color_fg_blue(), plugin_name,
911 bt_common_color_reset());
912 if (path) {
913 printf(" %sPath%s: %s\n", bt_common_color_bold(),
914 bt_common_color_reset(), path);
915 } else {
916 puts(" Built-in");
917 }
918
919 if (version_avail == BT_PROPERTY_AVAILABILITY_AVAILABLE) {
920 printf(" %sVersion%s: %u.%u.%u",
921 bt_common_color_bold(), bt_common_color_reset(),
922 major, minor, patch);
923
924 if (extra) {
925 printf("%s", extra);
926 }
927
928 printf("\n");
929 }
930
931 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
932 bt_common_color_reset(),
933 plugin_description ? plugin_description : "(None)");
934 printf(" %sAuthor%s: %s\n", bt_common_color_bold(),
935 bt_common_color_reset(), author ? author : "(Unknown)");
936 printf(" %sLicense%s: %s\n", bt_common_color_bold(),
937 bt_common_color_reset(),
938 license ? license : "(Unknown)");
939 }
940
941 static
942 int cmd_query(struct bt_config *cfg)
943 {
944 int ret = 0;
945 const bt_component_class *comp_cls = NULL;
946 const bt_value *results = NULL;
947 const char *fail_reason = NULL;
948
949 comp_cls = find_component_class(
950 cfg->cmd_data.query.cfg_component->plugin_name->str,
951 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
952 cfg->cmd_data.query.cfg_component->type);
953 if (!comp_cls) {
954 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
955 "comp-cls-name=\"%s\", comp-cls-type=%d",
956 cfg->cmd_data.query.cfg_component->plugin_name->str,
957 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
958 cfg->cmd_data.query.cfg_component->type);
959 fprintf(stderr, "%s%sCannot find component class %s",
960 bt_common_color_bold(),
961 bt_common_color_fg_red(),
962 bt_common_color_reset());
963 print_plugin_comp_cls_opt(stderr,
964 cfg->cmd_data.query.cfg_component->plugin_name->str,
965 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
966 cfg->cmd_data.query.cfg_component->type);
967 fprintf(stderr, "\n");
968 ret = -1;
969 goto end;
970 }
971
972 ret = query(comp_cls, cfg->cmd_data.query.object->str,
973 cfg->cmd_data.query.cfg_component->params,
974 &results, &fail_reason);
975 if (ret) {
976 goto failed;
977 }
978
979 print_value(stdout, results, 0);
980 goto end;
981
982 failed:
983 BT_LOGE("Failed to query component class: %s: plugin-name=\"%s\", "
984 "comp-cls-name=\"%s\", comp-cls-type=%d "
985 "object=\"%s\"", fail_reason,
986 cfg->cmd_data.query.cfg_component->plugin_name->str,
987 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
988 cfg->cmd_data.query.cfg_component->type,
989 cfg->cmd_data.query.object->str);
990 fprintf(stderr, "%s%sFailed to query info to %s",
991 bt_common_color_bold(),
992 bt_common_color_fg_red(),
993 bt_common_color_reset());
994 print_plugin_comp_cls_opt(stderr,
995 cfg->cmd_data.query.cfg_component->plugin_name->str,
996 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
997 cfg->cmd_data.query.cfg_component->type);
998 fprintf(stderr, "%s%s with object `%s`: %s%s\n",
999 bt_common_color_bold(),
1000 bt_common_color_fg_red(),
1001 cfg->cmd_data.query.object->str,
1002 fail_reason,
1003 bt_common_color_reset());
1004 ret = -1;
1005
1006 end:
1007 bt_component_class_put_ref(comp_cls);
1008 bt_value_put_ref(results);
1009 return ret;
1010 }
1011
1012 static
1013 void print_component_class_help(const char *plugin_name,
1014 const bt_component_class *comp_cls)
1015 {
1016 const char *comp_class_name =
1017 bt_component_class_get_name(comp_cls);
1018 const char *comp_class_description =
1019 bt_component_class_get_description(comp_cls);
1020 const char *comp_class_help =
1021 bt_component_class_get_help(comp_cls);
1022 bt_component_class_type type =
1023 bt_component_class_get_type(comp_cls);
1024
1025 print_plugin_comp_cls_opt(stdout, plugin_name, comp_class_name, type);
1026 printf("\n");
1027 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
1028 bt_common_color_reset(),
1029 comp_class_description ? comp_class_description : "(None)");
1030
1031 if (comp_class_help) {
1032 printf("\n%s\n", comp_class_help);
1033 }
1034 }
1035
1036 static
1037 int cmd_help(struct bt_config *cfg)
1038 {
1039 int ret = 0;
1040 const bt_plugin *plugin = NULL;
1041 const bt_component_class *needed_comp_cls = NULL;
1042
1043 plugin = find_plugin(cfg->cmd_data.help.cfg_component->plugin_name->str);
1044 if (!plugin) {
1045 BT_LOGE("Cannot find plugin: plugin-name=\"%s\"",
1046 cfg->cmd_data.help.cfg_component->plugin_name->str);
1047 fprintf(stderr, "%s%sCannot find plugin %s%s%s\n",
1048 bt_common_color_bold(), bt_common_color_fg_red(),
1049 bt_common_color_fg_blue(),
1050 cfg->cmd_data.help.cfg_component->plugin_name->str,
1051 bt_common_color_reset());
1052 ret = -1;
1053 goto end;
1054 }
1055
1056 print_plugin_info(plugin);
1057 printf(" %sSource component classes%s: %d\n",
1058 bt_common_color_bold(),
1059 bt_common_color_reset(),
1060 (int) bt_plugin_get_source_component_class_count(plugin));
1061 printf(" %sFilter component classes%s: %d\n",
1062 bt_common_color_bold(),
1063 bt_common_color_reset(),
1064 (int) bt_plugin_get_filter_component_class_count(plugin));
1065 printf(" %sSink component classes%s: %d\n",
1066 bt_common_color_bold(),
1067 bt_common_color_reset(),
1068 (int) bt_plugin_get_sink_component_class_count(plugin));
1069
1070 if (strlen(cfg->cmd_data.help.cfg_component->comp_cls_name->str) == 0) {
1071 /* Plugin help only */
1072 goto end;
1073 }
1074
1075 needed_comp_cls = find_component_class(
1076 cfg->cmd_data.help.cfg_component->plugin_name->str,
1077 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
1078 cfg->cmd_data.help.cfg_component->type);
1079 if (!needed_comp_cls) {
1080 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1081 "comp-cls-name=\"%s\", comp-cls-type=%d",
1082 cfg->cmd_data.help.cfg_component->plugin_name->str,
1083 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
1084 cfg->cmd_data.help.cfg_component->type);
1085 fprintf(stderr, "\n%s%sCannot find component class %s",
1086 bt_common_color_bold(),
1087 bt_common_color_fg_red(),
1088 bt_common_color_reset());
1089 print_plugin_comp_cls_opt(stderr,
1090 cfg->cmd_data.help.cfg_component->plugin_name->str,
1091 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
1092 cfg->cmd_data.help.cfg_component->type);
1093 fprintf(stderr, "\n");
1094 ret = -1;
1095 goto end;
1096 }
1097
1098 printf("\n");
1099 print_component_class_help(
1100 cfg->cmd_data.help.cfg_component->plugin_name->str,
1101 needed_comp_cls);
1102
1103 end:
1104 bt_component_class_put_ref(needed_comp_cls);
1105 bt_plugin_put_ref(plugin);
1106 return ret;
1107 }
1108
1109 typedef void *(* plugin_borrow_comp_cls_by_index_func_t)(const bt_plugin *,
1110 uint64_t);
1111 typedef const bt_component_class *(* spec_comp_cls_borrow_comp_cls_func_t)(
1112 void *);
1113
1114 void cmd_list_plugins_print_component_classes(const bt_plugin *plugin,
1115 const char *cc_type_name, uint64_t count,
1116 plugin_borrow_comp_cls_by_index_func_t borrow_comp_cls_by_index_func,
1117 spec_comp_cls_borrow_comp_cls_func_t spec_comp_cls_borrow_comp_cls_func)
1118 {
1119 uint64_t i;
1120
1121 if (count == 0) {
1122 printf(" %s%s component classes%s: (none)\n",
1123 bt_common_color_bold(),
1124 cc_type_name,
1125 bt_common_color_reset());
1126 goto end;
1127 } else {
1128 printf(" %s%s component classes%s:\n",
1129 bt_common_color_bold(),
1130 cc_type_name,
1131 bt_common_color_reset());
1132 }
1133
1134 for (i = 0; i < count; i++) {
1135 const bt_component_class *comp_class =
1136 spec_comp_cls_borrow_comp_cls_func(
1137 borrow_comp_cls_by_index_func(plugin, i));
1138 const char *comp_class_name =
1139 bt_component_class_get_name(comp_class);
1140 const char *comp_class_description =
1141 bt_component_class_get_description(comp_class);
1142 bt_component_class_type type =
1143 bt_component_class_get_type(comp_class);
1144
1145 printf(" ");
1146 print_plugin_comp_cls_opt(stdout,
1147 bt_plugin_get_name(plugin), comp_class_name,
1148 type);
1149
1150 if (comp_class_description) {
1151 printf(": %s", comp_class_description);
1152 }
1153
1154 printf("\n");
1155 }
1156
1157 end:
1158 return;
1159 }
1160
1161 static
1162 int cmd_list_plugins(struct bt_config *cfg)
1163 {
1164 int ret = 0;
1165 int plugins_count, component_classes_count = 0, i;
1166
1167 printf("From the following plugin paths:\n\n");
1168 print_value(stdout, cfg->plugin_paths, 2);
1169 printf("\n");
1170 plugins_count = loaded_plugins->len;
1171 if (plugins_count == 0) {
1172 printf("No plugins found.\n");
1173 goto end;
1174 }
1175
1176 for (i = 0; i < plugins_count; i++) {
1177 const bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
1178
1179 component_classes_count +=
1180 bt_plugin_get_source_component_class_count(plugin) +
1181 bt_plugin_get_filter_component_class_count(plugin) +
1182 bt_plugin_get_sink_component_class_count(plugin);
1183 }
1184
1185 printf("Found %s%d%s component classes in %s%d%s plugins.\n",
1186 bt_common_color_bold(),
1187 component_classes_count,
1188 bt_common_color_reset(),
1189 bt_common_color_bold(),
1190 plugins_count,
1191 bt_common_color_reset());
1192
1193 for (i = 0; i < plugins_count; i++) {
1194 const bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
1195
1196 printf("\n");
1197 print_plugin_info(plugin);
1198 cmd_list_plugins_print_component_classes(plugin, "Source",
1199 bt_plugin_get_source_component_class_count(plugin),
1200 (plugin_borrow_comp_cls_by_index_func_t)
1201 bt_plugin_borrow_source_component_class_by_index_const,
1202 (spec_comp_cls_borrow_comp_cls_func_t)
1203 bt_component_class_source_as_component_class);
1204 cmd_list_plugins_print_component_classes(plugin, "Filter",
1205 bt_plugin_get_filter_component_class_count(plugin),
1206 (plugin_borrow_comp_cls_by_index_func_t)
1207 bt_plugin_borrow_filter_component_class_by_index_const,
1208 (spec_comp_cls_borrow_comp_cls_func_t)
1209 bt_component_class_filter_as_component_class);
1210 cmd_list_plugins_print_component_classes(plugin, "Sink",
1211 bt_plugin_get_sink_component_class_count(plugin),
1212 (plugin_borrow_comp_cls_by_index_func_t)
1213 bt_plugin_borrow_sink_component_class_by_index_const,
1214 (spec_comp_cls_borrow_comp_cls_func_t)
1215 bt_component_class_sink_as_component_class);
1216 }
1217
1218 end:
1219 return ret;
1220 }
1221
1222 static
1223 int cmd_print_lttng_live_sessions(struct bt_config *cfg)
1224 {
1225 int ret = 0;
1226 const bt_component_class *comp_cls = NULL;
1227 const bt_value *results = NULL;
1228 bt_value *params = NULL;
1229 const bt_value *map = NULL;
1230 const bt_value *v = NULL;
1231 static const char * const plugin_name = "ctf";
1232 static const char * const comp_cls_name = "lttng-live";
1233 static const bt_component_class_type comp_cls_type =
1234 BT_COMPONENT_CLASS_TYPE_SOURCE;
1235 int64_t array_size, i;
1236 const char *fail_reason = NULL;
1237 FILE *out_stream = stdout;
1238
1239 BT_ASSERT(cfg->cmd_data.print_lttng_live_sessions.url);
1240 comp_cls = find_component_class(plugin_name, comp_cls_name,
1241 comp_cls_type);
1242 if (!comp_cls) {
1243 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1244 "comp-cls-name=\"%s\", comp-cls-type=%d",
1245 plugin_name, comp_cls_name,
1246 BT_COMPONENT_CLASS_TYPE_SOURCE);
1247 fprintf(stderr, "%s%sCannot find component class %s",
1248 bt_common_color_bold(),
1249 bt_common_color_fg_red(),
1250 bt_common_color_reset());
1251 print_plugin_comp_cls_opt(stderr, plugin_name,
1252 comp_cls_name, comp_cls_type);
1253 fprintf(stderr, "\n");
1254 goto error;
1255 }
1256
1257 params = bt_value_map_create();
1258 if (!params) {
1259 goto error;
1260 }
1261
1262 ret = bt_value_map_insert_string_entry(params, "url",
1263 cfg->cmd_data.print_lttng_live_sessions.url->str);
1264 if (ret) {
1265 goto error;
1266 }
1267
1268 ret = query(comp_cls, "sessions", params,
1269 &results, &fail_reason);
1270 if (ret) {
1271 goto failed;
1272 }
1273
1274 BT_ASSERT(results);
1275
1276 if (!bt_value_is_array(results)) {
1277 BT_LOGE_STR("Expecting an array for sessions query.");
1278 fprintf(stderr, "%s%sUnexpected type returned by session query%s\n",
1279 bt_common_color_bold(),
1280 bt_common_color_fg_red(),
1281 bt_common_color_reset());
1282 goto error;
1283 }
1284
1285 if (cfg->cmd_data.print_lttng_live_sessions.output_path->len > 0) {
1286 out_stream =
1287 fopen(cfg->cmd_data.print_lttng_live_sessions.output_path->str,
1288 "w");
1289 if (!out_stream) {
1290 ret = -1;
1291 BT_LOGE_ERRNO("Cannot open file for writing",
1292 ": path=\"%s\"",
1293 cfg->cmd_data.print_lttng_live_sessions.output_path->str);
1294 goto end;
1295 }
1296 }
1297
1298 array_size = bt_value_array_get_size(results);
1299 for (i = 0; i < array_size; i++) {
1300 const char *url_text;
1301 int64_t timer_us, streams, clients;
1302
1303 map = bt_value_array_borrow_element_by_index_const(results, i);
1304 if (!map) {
1305 BT_LOGE_STR("Unexpected empty array entry.");
1306 goto error;
1307 }
1308 if (!bt_value_is_map(map)) {
1309 BT_LOGE_STR("Unexpected entry type.");
1310 goto error;
1311 }
1312
1313 v = bt_value_map_borrow_entry_value_const(map, "url");
1314 if (!v) {
1315 BT_LOGE_STR("Unexpected empty array \"url\" entry.");
1316 goto error;
1317 }
1318 url_text = bt_value_string_get(v);
1319 fprintf(out_stream, "%s", url_text);
1320 v = bt_value_map_borrow_entry_value_const(map, "timer-us");
1321 if (!v) {
1322 BT_LOGE_STR("Unexpected empty array \"timer-us\" entry.");
1323 goto error;
1324 }
1325 timer_us = bt_value_signed_integer_get(v);
1326 fprintf(out_stream, " (timer = %" PRIu64 ", ", timer_us);
1327 v = bt_value_map_borrow_entry_value_const(map, "stream-count");
1328 if (!v) {
1329 BT_LOGE_STR("Unexpected empty array \"stream-count\" entry.");
1330 goto error;
1331 }
1332 streams = bt_value_signed_integer_get(v);
1333 fprintf(out_stream, "%" PRIu64 " stream(s), ", streams);
1334 v = bt_value_map_borrow_entry_value_const(map, "client-count");
1335 if (!v) {
1336 BT_LOGE_STR("Unexpected empty array \"client-count\" entry.");
1337 goto error;
1338 }
1339 clients = bt_value_signed_integer_get(v);
1340 fprintf(out_stream, "%" PRIu64 " client(s) connected)\n", clients);
1341 }
1342
1343 goto end;
1344
1345 failed:
1346 BT_LOGE("Failed to query for sessions: %s", fail_reason);
1347 fprintf(stderr, "%s%sFailed to request sessions: %s%s\n",
1348 bt_common_color_bold(),
1349 bt_common_color_fg_red(),
1350 fail_reason,
1351 bt_common_color_reset());
1352
1353 error:
1354 ret = -1;
1355
1356 end:
1357 bt_value_put_ref(results);
1358 bt_value_put_ref(params);
1359 bt_component_class_put_ref(comp_cls);
1360
1361 if (out_stream && out_stream != stdout) {
1362 int fclose_ret = fclose(out_stream);
1363
1364 if (fclose_ret) {
1365 BT_LOGE_ERRNO("Cannot close file stream",
1366 ": path=\"%s\"",
1367 cfg->cmd_data.print_lttng_live_sessions.output_path->str);
1368 }
1369 }
1370
1371 return ret;
1372 }
1373
1374 static
1375 int cmd_print_ctf_metadata(struct bt_config *cfg)
1376 {
1377 int ret = 0;
1378 const bt_component_class *comp_cls = NULL;
1379 const bt_value *results = NULL;
1380 bt_value *params = NULL;
1381 const bt_value *metadata_text_value = NULL;
1382 const char *metadata_text = NULL;
1383 static const char * const plugin_name = "ctf";
1384 static const char * const comp_cls_name = "fs";
1385 static const bt_component_class_type comp_cls_type =
1386 BT_COMPONENT_CLASS_TYPE_SOURCE;
1387 const char *fail_reason = NULL;
1388 FILE *out_stream = stdout;
1389
1390 BT_ASSERT(cfg->cmd_data.print_ctf_metadata.path);
1391 comp_cls = find_component_class(plugin_name, comp_cls_name,
1392 comp_cls_type);
1393 if (!comp_cls) {
1394 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1395 "comp-cls-name=\"%s\", comp-cls-type=%d",
1396 plugin_name, comp_cls_name,
1397 BT_COMPONENT_CLASS_TYPE_SOURCE);
1398 fprintf(stderr, "%s%sCannot find component class %s",
1399 bt_common_color_bold(),
1400 bt_common_color_fg_red(),
1401 bt_common_color_reset());
1402 print_plugin_comp_cls_opt(stderr, plugin_name,
1403 comp_cls_name, comp_cls_type);
1404 fprintf(stderr, "\n");
1405 ret = -1;
1406 goto end;
1407 }
1408
1409 params = bt_value_map_create();
1410 if (!params) {
1411 ret = -1;
1412 goto end;
1413 }
1414
1415 ret = bt_value_map_insert_string_entry(params, "path",
1416 cfg->cmd_data.print_ctf_metadata.path->str);
1417 if (ret) {
1418 ret = -1;
1419 goto end;
1420 }
1421
1422 ret = query(comp_cls, "metadata-info",
1423 params, &results, &fail_reason);
1424 if (ret) {
1425 goto failed;
1426 }
1427
1428 metadata_text_value = bt_value_map_borrow_entry_value_const(results,
1429 "text");
1430 if (!metadata_text_value) {
1431 BT_LOGE_STR("Cannot find `text` string value in the resulting metadata info object.");
1432 ret = -1;
1433 goto end;
1434 }
1435
1436 metadata_text = bt_value_string_get(metadata_text_value);
1437
1438 if (cfg->cmd_data.print_ctf_metadata.output_path->len > 0) {
1439 out_stream =
1440 fopen(cfg->cmd_data.print_ctf_metadata.output_path->str,
1441 "w");
1442 if (!out_stream) {
1443 ret = -1;
1444 BT_LOGE_ERRNO("Cannot open file for writing",
1445 ": path=\"%s\"",
1446 cfg->cmd_data.print_ctf_metadata.output_path->str);
1447 goto end;
1448 }
1449 }
1450
1451 ret = fprintf(out_stream, "%s\n", metadata_text);
1452 if (ret < 0) {
1453 BT_LOGE("Cannot write whole metadata text to output stream: "
1454 "ret=%d", ret);
1455 goto end;
1456 }
1457
1458 ret = 0;
1459
1460 goto end;
1461
1462 failed:
1463 ret = -1;
1464 BT_LOGE("Failed to query for metadata info: %s", fail_reason);
1465 fprintf(stderr, "%s%sFailed to request metadata info: %s%s\n",
1466 bt_common_color_bold(),
1467 bt_common_color_fg_red(),
1468 fail_reason,
1469 bt_common_color_reset());
1470
1471 end:
1472 bt_value_put_ref(results);
1473 bt_value_put_ref(params);
1474 bt_component_class_put_ref(comp_cls);
1475
1476 if (out_stream && out_stream != stdout) {
1477 int fclose_ret = fclose(out_stream);
1478
1479 if (fclose_ret) {
1480 BT_LOGE_ERRNO("Cannot close file stream",
1481 ": path=\"%s\"",
1482 cfg->cmd_data.print_ctf_metadata.output_path->str);
1483 }
1484 }
1485
1486 return ret;
1487 }
1488
1489 struct port_id {
1490 char *instance_name;
1491 char *port_name;
1492 };
1493
1494 struct trace_range {
1495 uint64_t intersection_range_begin_ns;
1496 uint64_t intersection_range_end_ns;
1497 };
1498
1499 static
1500 guint port_id_hash(gconstpointer v)
1501 {
1502 const struct port_id *id = v;
1503
1504 BT_ASSERT(id->instance_name);
1505 BT_ASSERT(id->port_name);
1506
1507 return g_str_hash(id->instance_name) ^ g_str_hash(id->port_name);
1508 }
1509
1510 static
1511 gboolean port_id_equal(gconstpointer v1, gconstpointer v2)
1512 {
1513 const struct port_id *id1 = v1;
1514 const struct port_id *id2 = v2;
1515
1516 return !strcmp(id1->instance_name, id2->instance_name) &&
1517 !strcmp(id1->port_name, id2->port_name);
1518 }
1519
1520 static
1521 void port_id_destroy(gpointer data)
1522 {
1523 struct port_id *id = data;
1524
1525 free(id->instance_name);
1526 free(id->port_name);
1527 free(id);
1528 }
1529
1530 static
1531 void trace_range_destroy(gpointer data)
1532 {
1533 free(data);
1534 }
1535
1536 struct cmd_run_ctx {
1537 /* Owned by this */
1538 GHashTable *src_components;
1539
1540 /* Owned by this */
1541 GHashTable *flt_components;
1542
1543 /* Owned by this */
1544 GHashTable *sink_components;
1545
1546 /* Owned by this */
1547 bt_graph *graph;
1548
1549 /* Weak */
1550 struct bt_config *cfg;
1551
1552 bool connect_ports;
1553
1554 bool stream_intersection_mode;
1555
1556 /*
1557 * Association of struct port_id -> struct trace_range.
1558 */
1559 GHashTable *intersections;
1560 };
1561
1562 /* Returns a timestamp of the form "(-)s.ns" */
1563 static
1564 char *s_from_ns(int64_t ns)
1565 {
1566 int ret;
1567 char *s_ret = NULL;
1568 bool is_negative;
1569 int64_t ts_sec_abs, ts_nsec_abs;
1570 int64_t ts_sec = ns / NSEC_PER_SEC;
1571 int64_t ts_nsec = ns % NSEC_PER_SEC;
1572
1573 if (ts_sec >= 0 && ts_nsec >= 0) {
1574 is_negative = false;
1575 ts_sec_abs = ts_sec;
1576 ts_nsec_abs = ts_nsec;
1577 } else if (ts_sec > 0 && ts_nsec < 0) {
1578 is_negative = false;
1579 ts_sec_abs = ts_sec - 1;
1580 ts_nsec_abs = NSEC_PER_SEC + ts_nsec;
1581 } else if (ts_sec == 0 && ts_nsec < 0) {
1582 is_negative = true;
1583 ts_sec_abs = ts_sec;
1584 ts_nsec_abs = -ts_nsec;
1585 } else if (ts_sec < 0 && ts_nsec > 0) {
1586 is_negative = true;
1587 ts_sec_abs = -(ts_sec + 1);
1588 ts_nsec_abs = NSEC_PER_SEC - ts_nsec;
1589 } else if (ts_sec < 0 && ts_nsec == 0) {
1590 is_negative = true;
1591 ts_sec_abs = -ts_sec;
1592 ts_nsec_abs = ts_nsec;
1593 } else { /* (ts_sec < 0 && ts_nsec < 0) */
1594 is_negative = true;
1595 ts_sec_abs = -ts_sec;
1596 ts_nsec_abs = -ts_nsec;
1597 }
1598
1599 ret = asprintf(&s_ret, "%s%" PRId64 ".%09" PRId64,
1600 is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs);
1601 if (ret < 0) {
1602 s_ret = NULL;
1603 }
1604 return s_ret;
1605 }
1606
1607 static
1608 int cmd_run_ctx_connect_upstream_port_to_downstream_component(
1609 struct cmd_run_ctx *ctx,
1610 const bt_component *upstream_comp,
1611 const bt_port_output *out_upstream_port,
1612 struct bt_config_connection *cfg_conn)
1613 {
1614 typedef uint64_t (*input_port_count_func_t)(void *);
1615 typedef const bt_port_input *(*borrow_input_port_by_index_func_t)(
1616 const void *, uint64_t);
1617 const bt_port *upstream_port =
1618 bt_port_output_as_port_const(out_upstream_port);
1619
1620 int ret = 0;
1621 GQuark downstreamp_comp_name_quark;
1622 void *downstream_comp;
1623 uint64_t downstream_port_count;
1624 uint64_t i;
1625 input_port_count_func_t port_count_fn;
1626 borrow_input_port_by_index_func_t port_by_index_fn;
1627 bt_graph_status status = BT_GRAPH_STATUS_ERROR;
1628 bool insert_trimmer = false;
1629 bt_value *trimmer_params = NULL;
1630 char *intersection_begin = NULL;
1631 char *intersection_end = NULL;
1632 const bt_component_filter *trimmer = NULL;
1633 const bt_component_class_filter *trimmer_class = NULL;
1634 const bt_port_input *trimmer_input = NULL;
1635 const bt_port_output *trimmer_output = NULL;
1636
1637 if (ctx->intersections &&
1638 bt_component_get_class_type(upstream_comp) ==
1639 BT_COMPONENT_CLASS_TYPE_SOURCE) {
1640 struct trace_range *range;
1641 struct port_id port_id = {
1642 .instance_name = (char *) bt_component_get_name(upstream_comp),
1643 .port_name = (char *) bt_port_get_name(upstream_port)
1644 };
1645
1646 if (!port_id.instance_name || !port_id.port_name) {
1647 goto error;
1648 }
1649
1650 range = (struct trace_range *) g_hash_table_lookup(
1651 ctx->intersections, &port_id);
1652 if (range) {
1653 bt_value_status status;
1654
1655 intersection_begin = s_from_ns(
1656 range->intersection_range_begin_ns);
1657 intersection_end = s_from_ns(
1658 range->intersection_range_end_ns);
1659 if (!intersection_begin || !intersection_end) {
1660 BT_LOGE_STR("Cannot create trimmer argument timestamp string.");
1661 goto error;
1662 }
1663
1664 insert_trimmer = true;
1665 trimmer_params = bt_value_map_create();
1666 if (!trimmer_params) {
1667 goto error;
1668 }
1669
1670 status = bt_value_map_insert_string_entry(
1671 trimmer_params, "begin", intersection_begin);
1672 if (status != BT_VALUE_STATUS_OK) {
1673 goto error;
1674 }
1675 status = bt_value_map_insert_string_entry(
1676 trimmer_params,
1677 "end", intersection_end);
1678 if (status != BT_VALUE_STATUS_OK) {
1679 goto error;
1680 }
1681 }
1682
1683 trimmer_class = find_filter_component_class("utils", "trimmer");
1684 if (!trimmer_class) {
1685 goto error;
1686 }
1687 }
1688
1689 BT_LOGI("Connecting upstream port to the next available downstream port: "
1690 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1691 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1692 upstream_port, bt_port_get_name(upstream_port),
1693 cfg_conn->downstream_comp_name->str,
1694 cfg_conn->arg->str);
1695 downstreamp_comp_name_quark = g_quark_from_string(
1696 cfg_conn->downstream_comp_name->str);
1697 BT_ASSERT(downstreamp_comp_name_quark > 0);
1698 downstream_comp = g_hash_table_lookup(ctx->flt_components,
1699 GUINT_TO_POINTER(downstreamp_comp_name_quark));
1700 port_count_fn = (input_port_count_func_t)
1701 bt_component_filter_get_input_port_count;
1702 port_by_index_fn = (borrow_input_port_by_index_func_t)
1703 bt_component_filter_borrow_input_port_by_index_const;
1704
1705 if (!downstream_comp) {
1706 downstream_comp = g_hash_table_lookup(ctx->sink_components,
1707 GUINT_TO_POINTER(downstreamp_comp_name_quark));
1708 port_count_fn = (input_port_count_func_t)
1709 bt_component_sink_get_input_port_count;
1710 port_by_index_fn = (borrow_input_port_by_index_func_t)
1711 bt_component_sink_borrow_input_port_by_index_const;
1712 }
1713
1714 if (!downstream_comp) {
1715 BT_LOGE("Cannot find downstream component: comp-name=\"%s\", "
1716 "conn-arg=\"%s\"", cfg_conn->downstream_comp_name->str,
1717 cfg_conn->arg->str);
1718 fprintf(stderr, "Cannot create connection: cannot find downstream component: %s\n",
1719 cfg_conn->arg->str);
1720 goto error;
1721 }
1722
1723 downstream_port_count = port_count_fn(downstream_comp);
1724
1725 for (i = 0; i < downstream_port_count; i++) {
1726 const bt_port_input *in_downstream_port =
1727 port_by_index_fn(downstream_comp, i);
1728 const bt_port *downstream_port =
1729 bt_port_input_as_port_const(in_downstream_port);
1730 const char *upstream_port_name;
1731 const char *downstream_port_name;
1732
1733 BT_ASSERT(downstream_port);
1734
1735 /* Skip port if it's already connected. */
1736 if (bt_port_is_connected(downstream_port)) {
1737 BT_LOGI("Skipping downstream port: already connected: "
1738 "port-addr=%p, port-name=\"%s\"",
1739 downstream_port,
1740 bt_port_get_name(downstream_port));
1741 continue;
1742 }
1743
1744 downstream_port_name = bt_port_get_name(downstream_port);
1745 BT_ASSERT(downstream_port_name);
1746 upstream_port_name = bt_port_get_name(upstream_port);
1747 BT_ASSERT(upstream_port_name);
1748
1749 if (!bt_common_star_glob_match(
1750 cfg_conn->downstream_port_glob->str, SIZE_MAX,
1751 downstream_port_name, SIZE_MAX)) {
1752 continue;
1753 }
1754
1755 if (insert_trimmer) {
1756 /*
1757 * In order to insert the trimmer between the
1758 * two components that were being connected, we
1759 * create a connection configuration entry which
1760 * describes a connection from the trimmer's
1761 * output to the original input that was being
1762 * connected.
1763 *
1764 * Hence, the creation of the trimmer will cause
1765 * the graph "new port" listener to establish
1766 * all downstream connections as its output port
1767 * is connected. We will then establish the
1768 * connection between the original upstream
1769 * source and the trimmer.
1770 */
1771 char *trimmer_name = NULL;
1772 bt_graph_status graph_status;
1773
1774 ret = asprintf(&trimmer_name,
1775 "stream-intersection-trimmer-%s",
1776 upstream_port_name);
1777 if (ret < 0) {
1778 goto error;
1779 }
1780 ret = 0;
1781
1782 ctx->connect_ports = false;
1783 graph_status = bt_graph_add_filter_component(
1784 ctx->graph, trimmer_class, trimmer_name,
1785 trimmer_params, ctx->cfg->log_level,
1786 &trimmer);
1787 free(trimmer_name);
1788 if (graph_status != BT_GRAPH_STATUS_OK) {
1789 goto error;
1790 }
1791 BT_ASSERT(trimmer);
1792
1793 trimmer_input =
1794 bt_component_filter_borrow_input_port_by_index_const(
1795 trimmer, 0);
1796 if (!trimmer_input) {
1797 goto error;
1798 }
1799 trimmer_output =
1800 bt_component_filter_borrow_output_port_by_index_const(
1801 trimmer, 0);
1802 if (!trimmer_output) {
1803 goto error;
1804 }
1805
1806 /*
1807 * Replace the current downstream port by the trimmer's
1808 * upstream port.
1809 */
1810 in_downstream_port = trimmer_input;
1811 downstream_port =
1812 bt_port_input_as_port_const(in_downstream_port);
1813 downstream_port_name = bt_port_get_name(
1814 downstream_port);
1815 BT_ASSERT(downstream_port_name);
1816 }
1817
1818 /* We have a winner! */
1819 status = bt_graph_connect_ports(ctx->graph,
1820 out_upstream_port, in_downstream_port, NULL);
1821 downstream_port = NULL;
1822 switch (status) {
1823 case BT_GRAPH_STATUS_OK:
1824 break;
1825 case BT_GRAPH_STATUS_CANCELED:
1826 BT_LOGI_STR("Graph was canceled by user.");
1827 status = BT_GRAPH_STATUS_OK;
1828 break;
1829 case BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION:
1830 BT_LOGE("A component refused a connection to one of its ports: "
1831 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1832 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1833 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1834 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1835 "conn-arg=\"%s\"",
1836 upstream_comp, bt_component_get_name(upstream_comp),
1837 upstream_port, bt_port_get_name(upstream_port),
1838 downstream_comp, cfg_conn->downstream_comp_name->str,
1839 downstream_port, downstream_port_name,
1840 cfg_conn->arg->str);
1841 fprintf(stderr,
1842 "A component refused a connection to one of its ports (`%s` to `%s`): %s\n",
1843 bt_port_get_name(upstream_port),
1844 downstream_port_name,
1845 cfg_conn->arg->str);
1846 break;
1847 default:
1848 BT_LOGE("Cannot create connection: graph refuses to connect ports: "
1849 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1850 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1851 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1852 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1853 "conn-arg=\"%s\"",
1854 upstream_comp, bt_component_get_name(upstream_comp),
1855 upstream_port, bt_port_get_name(upstream_port),
1856 downstream_comp, cfg_conn->downstream_comp_name->str,
1857 downstream_port, downstream_port_name,
1858 cfg_conn->arg->str);
1859 fprintf(stderr,
1860 "Cannot create connection: graph refuses to connect ports (`%s` to `%s`): %s\n",
1861 bt_port_get_name(upstream_port),
1862 downstream_port_name,
1863 cfg_conn->arg->str);
1864 goto error;
1865 }
1866
1867 BT_LOGI("Connected component ports: "
1868 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1869 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1870 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1871 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1872 "conn-arg=\"%s\"",
1873 upstream_comp, bt_component_get_name(upstream_comp),
1874 upstream_port, bt_port_get_name(upstream_port),
1875 downstream_comp, cfg_conn->downstream_comp_name->str,
1876 downstream_port, downstream_port_name,
1877 cfg_conn->arg->str);
1878
1879 if (insert_trimmer) {
1880 /*
1881 * The first connection, from the source to the trimmer,
1882 * has been done. We now connect the trimmer to the
1883 * original downstream port.
1884 */
1885 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1886 ctx,
1887 bt_component_filter_as_component_const(trimmer),
1888 trimmer_output, cfg_conn);
1889 if (ret) {
1890 goto error;
1891 }
1892 ctx->connect_ports = true;
1893 }
1894
1895 /*
1896 * We found a matching downstream port: the search is
1897 * over.
1898 */
1899 goto end;
1900 }
1901
1902 /* No downstream port found */
1903 BT_LOGE("Cannot create connection: cannot find a matching downstream port for upstream port: "
1904 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1905 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1906 upstream_port, bt_port_get_name(upstream_port),
1907 cfg_conn->downstream_comp_name->str,
1908 cfg_conn->arg->str);
1909 fprintf(stderr,
1910 "Cannot create connection: cannot find a matching downstream port for upstream port `%s`: %s\n",
1911 bt_port_get_name(upstream_port), cfg_conn->arg->str);
1912
1913 error:
1914 ret = -1;
1915
1916 end:
1917 free(intersection_begin);
1918 free(intersection_end);
1919 BT_VALUE_PUT_REF_AND_RESET(trimmer_params);
1920 BT_COMPONENT_CLASS_FILTER_PUT_REF_AND_RESET(trimmer_class);
1921 BT_COMPONENT_FILTER_PUT_REF_AND_RESET(trimmer);
1922 return ret;
1923 }
1924
1925 static
1926 int cmd_run_ctx_connect_upstream_port(struct cmd_run_ctx *ctx,
1927 const bt_port_output *upstream_port)
1928 {
1929 int ret = 0;
1930 const char *upstream_port_name;
1931 const char *upstream_comp_name;
1932 const bt_component *upstream_comp = NULL;
1933 size_t i;
1934
1935 BT_ASSERT(ctx);
1936 BT_ASSERT(upstream_port);
1937 upstream_port_name = bt_port_get_name(
1938 bt_port_output_as_port_const(upstream_port));
1939 BT_ASSERT(upstream_port_name);
1940 upstream_comp = bt_port_borrow_component_const(
1941 bt_port_output_as_port_const(upstream_port));
1942 if (!upstream_comp) {
1943 BT_LOGW("Upstream port to connect is not part of a component: "
1944 "port-addr=%p, port-name=\"%s\"",
1945 upstream_port, upstream_port_name);
1946 ret = -1;
1947 goto end;
1948 }
1949
1950 upstream_comp_name = bt_component_get_name(upstream_comp);
1951 BT_ASSERT(upstream_comp_name);
1952 BT_LOGI("Connecting upstream port: comp-addr=%p, comp-name=\"%s\", "
1953 "port-addr=%p, port-name=\"%s\"",
1954 upstream_comp, upstream_comp_name,
1955 upstream_port, upstream_port_name);
1956
1957 for (i = 0; i < ctx->cfg->cmd_data.run.connections->len; i++) {
1958 struct bt_config_connection *cfg_conn =
1959 g_ptr_array_index(
1960 ctx->cfg->cmd_data.run.connections, i);
1961
1962 if (strcmp(cfg_conn->upstream_comp_name->str,
1963 upstream_comp_name)) {
1964 continue;
1965 }
1966
1967 if (!bt_common_star_glob_match(
1968 cfg_conn->upstream_port_glob->str,
1969 SIZE_MAX, upstream_port_name, SIZE_MAX)) {
1970 continue;
1971 }
1972
1973 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1974 ctx, upstream_comp, upstream_port, cfg_conn);
1975 if (ret) {
1976 BT_LOGE("Cannot connect upstream port: "
1977 "port-addr=%p, port-name=\"%s\"",
1978 upstream_port,
1979 upstream_port_name);
1980 fprintf(stderr,
1981 "Cannot connect port `%s` of component `%s` to a downstream port: %s\n",
1982 upstream_port_name,
1983 upstream_comp_name,
1984 cfg_conn->arg->str);
1985 goto error;
1986 }
1987 goto end;
1988 }
1989
1990 BT_LOGE("Cannot connect upstream port: port does not match any connection argument: "
1991 "port-addr=%p, port-name=\"%s\"", upstream_port,
1992 upstream_port_name);
1993 fprintf(stderr,
1994 "Cannot create connection: upstream port `%s` does not match any connection\n",
1995 upstream_port_name);
1996
1997 error:
1998 ret = -1;
1999
2000 end:
2001 return ret;
2002 }
2003
2004 static
2005 bt_graph_listener_status
2006 graph_output_port_added_listener(struct cmd_run_ctx *ctx,
2007 const bt_port_output *out_port)
2008 {
2009 const bt_component *comp;
2010 const bt_port *port = bt_port_output_as_port_const(out_port);
2011 bt_graph_listener_status ret = BT_GRAPH_LISTENER_STATUS_OK;
2012
2013 comp = bt_port_borrow_component_const(port);
2014 BT_LOGI("Port added to a graph's component: comp-addr=%p, "
2015 "comp-name=\"%s\", port-addr=%p, port-name=\"%s\"",
2016 comp, comp ? bt_component_get_name(comp) : "",
2017 port, bt_port_get_name(port));
2018
2019 if (!ctx->connect_ports) {
2020 goto end;
2021 }
2022
2023 if (!comp) {
2024 BT_LOGW_STR("Port has no component.");
2025 goto end;
2026 }
2027
2028 if (bt_port_is_connected(port)) {
2029 BT_LOGW_STR("Port is already connected.");
2030 goto end;
2031 }
2032
2033 if (cmd_run_ctx_connect_upstream_port(ctx, out_port)) {
2034 BT_LOGF_STR("Cannot connect upstream port.");
2035 fprintf(stderr, "Added port could not be connected: aborting\n");
2036 ret = BT_GRAPH_LISTENER_STATUS_ERROR;
2037 goto end;
2038 }
2039
2040 end:
2041 return ret;
2042 }
2043
2044 static
2045 bt_graph_listener_status graph_source_output_port_added_listener(
2046 const bt_component_source *component,
2047 const bt_port_output *port, void *data)
2048 {
2049 return graph_output_port_added_listener(data, port);
2050 }
2051
2052 static
2053 bt_graph_listener_status graph_filter_output_port_added_listener(
2054 const bt_component_filter *component,
2055 const bt_port_output *port, void *data)
2056 {
2057 return graph_output_port_added_listener(data, port);
2058 }
2059
2060 static
2061 void cmd_run_ctx_destroy(struct cmd_run_ctx *ctx)
2062 {
2063 if (!ctx) {
2064 return;
2065 }
2066
2067 if (ctx->src_components) {
2068 g_hash_table_destroy(ctx->src_components);
2069 ctx->src_components = NULL;
2070 }
2071
2072 if (ctx->flt_components) {
2073 g_hash_table_destroy(ctx->flt_components);
2074 ctx->flt_components = NULL;
2075 }
2076
2077 if (ctx->sink_components) {
2078 g_hash_table_destroy(ctx->sink_components);
2079 ctx->sink_components = NULL;
2080 }
2081
2082 if (ctx->intersections) {
2083 g_hash_table_destroy(ctx->intersections);
2084 ctx->intersections = NULL;
2085 }
2086
2087 BT_GRAPH_PUT_REF_AND_RESET(ctx->graph);
2088 the_graph = NULL;
2089 ctx->cfg = NULL;
2090 }
2091
2092 static
2093 int cmd_run_ctx_init(struct cmd_run_ctx *ctx, struct bt_config *cfg)
2094 {
2095 int ret = 0;
2096 bt_graph_status status;
2097
2098 ctx->cfg = cfg;
2099 ctx->connect_ports = false;
2100 ctx->src_components = g_hash_table_new_full(g_direct_hash,
2101 g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref);
2102 if (!ctx->src_components) {
2103 goto error;
2104 }
2105
2106 ctx->flt_components = g_hash_table_new_full(g_direct_hash,
2107 g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref);
2108 if (!ctx->flt_components) {
2109 goto error;
2110 }
2111
2112 ctx->sink_components = g_hash_table_new_full(g_direct_hash,
2113 g_direct_equal, NULL, (GDestroyNotify) bt_object_put_ref);
2114 if (!ctx->sink_components) {
2115 goto error;
2116 }
2117
2118 if (cfg->cmd_data.run.stream_intersection_mode) {
2119 ctx->stream_intersection_mode = true;
2120 ctx->intersections = g_hash_table_new_full(port_id_hash,
2121 port_id_equal, port_id_destroy, trace_range_destroy);
2122 if (!ctx->intersections) {
2123 goto error;
2124 }
2125 }
2126
2127 ctx->graph = bt_graph_create();
2128 if (!ctx->graph) {
2129 goto error;
2130 }
2131
2132 the_graph = ctx->graph;
2133 status = bt_graph_add_source_component_output_port_added_listener(
2134 ctx->graph, graph_source_output_port_added_listener, NULL, ctx,
2135 NULL);
2136 if (status != BT_GRAPH_STATUS_OK) {
2137 BT_LOGE_STR("Cannot add \"port added\" listener to graph.");
2138 goto error;
2139 }
2140
2141 status = bt_graph_add_filter_component_output_port_added_listener(
2142 ctx->graph, graph_filter_output_port_added_listener, NULL, ctx,
2143 NULL);
2144 if (status != BT_GRAPH_STATUS_OK) {
2145 BT_LOGE_STR("Cannot add \"port added\" listener to graph.");
2146 goto error;
2147 }
2148
2149 goto end;
2150
2151 error:
2152 cmd_run_ctx_destroy(ctx);
2153 ret = -1;
2154
2155 end:
2156 return ret;
2157 }
2158
2159 static
2160 int set_stream_intersections(struct cmd_run_ctx *ctx,
2161 struct bt_config_component *cfg_comp,
2162 const bt_component_class_source *src_comp_cls)
2163 {
2164 int ret = 0;
2165 uint64_t trace_idx;
2166 int64_t trace_count;
2167 const char *path = NULL;
2168 const bt_value *query_result = NULL;
2169 const bt_value *trace_info = NULL;
2170 const bt_value *intersection_range = NULL;
2171 const bt_value *intersection_begin = NULL;
2172 const bt_value *intersection_end = NULL;
2173 const bt_value *stream_infos = NULL;
2174 const bt_value *stream_info = NULL;
2175 struct port_id *port_id = NULL;
2176 struct trace_range *trace_range = NULL;
2177 const char *fail_reason = NULL;
2178 const bt_component_class *comp_cls =
2179 bt_component_class_source_as_component_class_const(src_comp_cls);
2180
2181 ret = query(comp_cls, "trace-info",
2182 cfg_comp->params, &query_result,
2183 &fail_reason);
2184 if (ret) {
2185 BT_LOGD("Component class does not support the `trace-info` query: %s: "
2186 "comp-class-name=\"%s\"", fail_reason,
2187 bt_component_class_get_name(comp_cls));
2188 ret = -1;
2189 goto error;
2190 }
2191
2192 BT_ASSERT(query_result);
2193
2194 if (!bt_value_is_array(query_result)) {
2195 BT_LOGD("Unexpected format of \'trace-info\' query result: "
2196 "component-class-name=%s",
2197 bt_component_class_get_name(comp_cls));
2198 ret = -1;
2199 goto error;
2200 }
2201
2202 trace_count = bt_value_array_get_size(query_result);
2203 if (trace_count < 0) {
2204 ret = -1;
2205 goto error;
2206 }
2207
2208 for (trace_idx = 0; trace_idx < trace_count; trace_idx++) {
2209 int64_t begin, end;
2210 uint64_t stream_idx;
2211 int64_t stream_count;
2212
2213 trace_info = bt_value_array_borrow_element_by_index_const(
2214 query_result, trace_idx);
2215 if (!trace_info || !bt_value_is_map(trace_info)) {
2216 ret = -1;
2217 BT_LOGD_STR("Cannot retrieve trace from query result.");
2218 goto error;
2219 }
2220
2221 intersection_range = bt_value_map_borrow_entry_value_const(
2222 trace_info, "intersection-range-ns");
2223 if (!intersection_range) {
2224 ret = -1;
2225 BT_LOGD_STR("Cannot retrieve \'intersetion-range-ns\' field from query result.");
2226 goto error;
2227 }
2228
2229 intersection_begin = bt_value_map_borrow_entry_value_const(intersection_range,
2230 "begin");
2231 if (!intersection_begin) {
2232 ret = -1;
2233 BT_LOGD_STR("Cannot retrieve intersection-range-ns \'begin\' field from query result.");
2234 goto error;
2235 }
2236
2237 intersection_end = bt_value_map_borrow_entry_value_const(intersection_range,
2238 "end");
2239 if (!intersection_end) {
2240 ret = -1;
2241 BT_LOGD_STR("Cannot retrieve intersection-range-ns \'end\' field from query result.");
2242 goto error;
2243 }
2244
2245 begin = bt_value_signed_integer_get(intersection_begin);
2246 end = bt_value_signed_integer_get(intersection_end);
2247
2248 if (begin < 0 || end < 0 || end < begin) {
2249 BT_LOGW("Invalid trace stream intersection values: "
2250 "intersection-range-ns:begin=%" PRId64
2251 ", intersection-range-ns:end=%" PRId64,
2252 begin, end);
2253 ret = -1;
2254 goto error;
2255 }
2256
2257 stream_infos = bt_value_map_borrow_entry_value_const(trace_info,
2258 "streams");
2259 if (!stream_infos || !bt_value_is_array(stream_infos)) {
2260 ret = -1;
2261 BT_LOGD_STR("Cannot retrieve stream information from trace in query result.");
2262 goto error;
2263 }
2264
2265 stream_count = bt_value_array_get_size(stream_infos);
2266 if (stream_count < 0) {
2267 ret = -1;
2268 goto error;
2269 }
2270
2271 for (stream_idx = 0; stream_idx < stream_count; stream_idx++) {
2272 const bt_value *port_name;
2273
2274 port_id = g_new0(struct port_id, 1);
2275 if (!port_id) {
2276 ret = -1;
2277 BT_LOGE_STR("Cannot allocate memory for port_id structure.");
2278 goto error;
2279 }
2280 port_id->instance_name = strdup(cfg_comp->instance_name->str);
2281 if (!port_id->instance_name) {
2282 ret = -1;
2283 BT_LOGE_STR("Cannot allocate memory for port_id component instance name.");
2284 goto error;
2285 }
2286
2287 trace_range = g_new0(struct trace_range, 1);
2288 if (!trace_range) {
2289 ret = -1;
2290 BT_LOGE_STR("Cannot allocate memory for trace_range structure.");
2291 goto error;
2292 }
2293 trace_range->intersection_range_begin_ns = begin;
2294 trace_range->intersection_range_end_ns = end;
2295
2296 stream_info = bt_value_array_borrow_element_by_index_const(
2297 stream_infos, stream_idx);
2298 if (!stream_info || !bt_value_is_map(stream_info)) {
2299 ret = -1;
2300 BT_LOGE_STR("Cannot retrieve stream informations from trace in query result.");
2301 goto error;
2302 }
2303
2304 port_name = bt_value_map_borrow_entry_value_const(stream_info, "port-name");
2305 if (!port_name || !bt_value_is_string(port_name)) {
2306 ret = -1;
2307 BT_LOGE_STR("Cannot retrieve port name in query result.");
2308 goto error;
2309 }
2310
2311 port_id->port_name = g_strdup(bt_value_string_get(port_name));
2312 if (!port_id->port_name) {
2313 ret = -1;
2314 BT_LOGE_STR("Cannot allocate memory for port_id port_name.");
2315 goto error;
2316 }
2317
2318 BT_LOGD("Inserting stream intersection ");
2319
2320 g_hash_table_insert(ctx->intersections, port_id, trace_range);
2321
2322 port_id = NULL;
2323 trace_range = NULL;
2324 }
2325 }
2326
2327 goto end;
2328
2329 error:
2330 fprintf(stderr, "%s%sCannot determine stream intersection of trace at path \'%s\'.%s\n",
2331 bt_common_color_bold(),
2332 bt_common_color_fg_yellow(),
2333 path ? path : "(unknown)",
2334 bt_common_color_reset());
2335 end:
2336 bt_value_put_ref(query_result);
2337 g_free(port_id);
2338 g_free(trace_range);
2339 return ret;
2340 }
2341
2342 static
2343 int cmd_run_ctx_create_components_from_config_components(
2344 struct cmd_run_ctx *ctx, GPtrArray *cfg_components)
2345 {
2346 size_t i;
2347 const void *comp_cls = NULL;
2348 const void *comp = NULL;
2349 int ret = 0;
2350
2351 for (i = 0; i < cfg_components->len; i++) {
2352 struct bt_config_component *cfg_comp =
2353 g_ptr_array_index(cfg_components, i);
2354 GQuark quark;
2355
2356 switch (cfg_comp->type) {
2357 case BT_COMPONENT_CLASS_TYPE_SOURCE:
2358 comp_cls = find_source_component_class(
2359 cfg_comp->plugin_name->str,
2360 cfg_comp->comp_cls_name->str);
2361 break;
2362 case BT_COMPONENT_CLASS_TYPE_FILTER:
2363 comp_cls = find_filter_component_class(
2364 cfg_comp->plugin_name->str,
2365 cfg_comp->comp_cls_name->str);
2366 break;
2367 case BT_COMPONENT_CLASS_TYPE_SINK:
2368 comp_cls = find_sink_component_class(
2369 cfg_comp->plugin_name->str,
2370 cfg_comp->comp_cls_name->str);
2371 break;
2372 default:
2373 abort();
2374 }
2375
2376 if (!comp_cls) {
2377 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
2378 "comp-cls-name=\"%s\", comp-cls-type=%d",
2379 cfg_comp->plugin_name->str,
2380 cfg_comp->comp_cls_name->str,
2381 cfg_comp->type);
2382 fprintf(stderr, "%s%sCannot find component class %s",
2383 bt_common_color_bold(),
2384 bt_common_color_fg_red(),
2385 bt_common_color_reset());
2386 print_plugin_comp_cls_opt(stderr,
2387 cfg_comp->plugin_name->str,
2388 cfg_comp->comp_cls_name->str,
2389 cfg_comp->type);
2390 fprintf(stderr, "\n");
2391 goto error;
2392 }
2393
2394 switch (cfg_comp->type) {
2395 case BT_COMPONENT_CLASS_TYPE_SOURCE:
2396 ret = bt_graph_add_source_component(ctx->graph,
2397 comp_cls, cfg_comp->instance_name->str,
2398 cfg_comp->params, ctx->cfg->log_level,
2399 (void *) &comp);
2400 break;
2401 case BT_COMPONENT_CLASS_TYPE_FILTER:
2402 ret = bt_graph_add_filter_component(ctx->graph,
2403 comp_cls, cfg_comp->instance_name->str,
2404 cfg_comp->params, ctx->cfg->log_level,
2405 (void *) &comp);
2406 break;
2407 case BT_COMPONENT_CLASS_TYPE_SINK:
2408 ret = bt_graph_add_sink_component(ctx->graph,
2409 comp_cls, cfg_comp->instance_name->str,
2410 cfg_comp->params, ctx->cfg->log_level,
2411 (void *) &comp);
2412 break;
2413 default:
2414 abort();
2415 }
2416
2417 if (ret) {
2418 BT_LOGE("Cannot create component: plugin-name=\"%s\", "
2419 "comp-cls-name=\"%s\", comp-cls-type=%d, "
2420 "comp-name=\"%s\"",
2421 cfg_comp->plugin_name->str,
2422 cfg_comp->comp_cls_name->str,
2423 cfg_comp->type, cfg_comp->instance_name->str);
2424 fprintf(stderr, "%s%sCannot create component `%s`%s\n",
2425 bt_common_color_bold(),
2426 bt_common_color_fg_red(),
2427 cfg_comp->instance_name->str,
2428 bt_common_color_reset());
2429 goto error;
2430 }
2431
2432 if (ctx->stream_intersection_mode &&
2433 cfg_comp->type == BT_COMPONENT_CLASS_TYPE_SOURCE) {
2434 ret = set_stream_intersections(ctx, cfg_comp, comp_cls);
2435 if (ret) {
2436 goto error;
2437 }
2438 }
2439
2440 BT_LOGI("Created and inserted component: comp-addr=%p, comp-name=\"%s\"",
2441 comp, cfg_comp->instance_name->str);
2442 quark = g_quark_from_string(cfg_comp->instance_name->str);
2443 BT_ASSERT(quark > 0);
2444
2445 switch (cfg_comp->type) {
2446 case BT_COMPONENT_CLASS_TYPE_SOURCE:
2447 g_hash_table_insert(ctx->src_components,
2448 GUINT_TO_POINTER(quark), (void *) comp);
2449 break;
2450 case BT_COMPONENT_CLASS_TYPE_FILTER:
2451 g_hash_table_insert(ctx->flt_components,
2452 GUINT_TO_POINTER(quark), (void *) comp);
2453 break;
2454 case BT_COMPONENT_CLASS_TYPE_SINK:
2455 g_hash_table_insert(ctx->sink_components,
2456 GUINT_TO_POINTER(quark), (void *) comp);
2457 break;
2458 default:
2459 abort();
2460 }
2461
2462 comp = NULL;
2463 BT_OBJECT_PUT_REF_AND_RESET(comp_cls);
2464 }
2465
2466 goto end;
2467
2468 error:
2469 ret = -1;
2470
2471 end:
2472 bt_object_put_ref(comp);
2473 bt_object_put_ref(comp_cls);
2474 return ret;
2475 }
2476
2477 static
2478 int cmd_run_ctx_create_components(struct cmd_run_ctx *ctx)
2479 {
2480 int ret = 0;
2481
2482 /*
2483 * Make sure that, during this phase, our graph's "port added"
2484 * listener does not connect ports while we are creating the
2485 * components because we have a special, initial phase for
2486 * this.
2487 */
2488 ctx->connect_ports = false;
2489
2490 ret = cmd_run_ctx_create_components_from_config_components(
2491 ctx, ctx->cfg->cmd_data.run.sources);
2492 if (ret) {
2493 ret = -1;
2494 goto end;
2495 }
2496
2497 ret = cmd_run_ctx_create_components_from_config_components(
2498 ctx, ctx->cfg->cmd_data.run.filters);
2499 if (ret) {
2500 ret = -1;
2501 goto end;
2502 }
2503
2504 ret = cmd_run_ctx_create_components_from_config_components(
2505 ctx, ctx->cfg->cmd_data.run.sinks);
2506 if (ret) {
2507 ret = -1;
2508 goto end;
2509 }
2510
2511 end:
2512 return ret;
2513 }
2514
2515 typedef uint64_t (*output_port_count_func_t)(const void *);
2516 typedef const bt_port_output *(*borrow_output_port_by_index_func_t)(
2517 const void *, uint64_t);
2518
2519 static
2520 int cmd_run_ctx_connect_comp_ports(struct cmd_run_ctx *ctx,
2521 void *comp, output_port_count_func_t port_count_fn,
2522 borrow_output_port_by_index_func_t port_by_index_fn)
2523 {
2524 int ret = 0;
2525 uint64_t count;
2526 uint64_t i;
2527
2528 count = port_count_fn(comp);
2529
2530 for (i = 0; i < count; i++) {
2531 const bt_port_output *upstream_port = port_by_index_fn(comp, i);
2532
2533 BT_ASSERT(upstream_port);
2534 ret = cmd_run_ctx_connect_upstream_port(ctx, upstream_port);
2535 if (ret) {
2536 goto end;
2537 }
2538 }
2539
2540 end:
2541 return ret;
2542 }
2543
2544 static
2545 int cmd_run_ctx_connect_ports(struct cmd_run_ctx *ctx)
2546 {
2547 int ret = 0;
2548 GHashTableIter iter;
2549 gpointer g_name_quark, g_comp;
2550
2551 ctx->connect_ports = true;
2552 g_hash_table_iter_init(&iter, ctx->src_components);
2553
2554 while (g_hash_table_iter_next(&iter, &g_name_quark, &g_comp)) {
2555 ret = cmd_run_ctx_connect_comp_ports(ctx, g_comp,
2556 (output_port_count_func_t)
2557 bt_component_source_get_output_port_count,
2558 (borrow_output_port_by_index_func_t)
2559 bt_component_source_borrow_output_port_by_index_const);
2560 if (ret) {
2561 goto end;
2562 }
2563 }
2564
2565 g_hash_table_iter_init(&iter, ctx->flt_components);
2566
2567 while (g_hash_table_iter_next(&iter, &g_name_quark, &g_comp)) {
2568 ret = cmd_run_ctx_connect_comp_ports(ctx, g_comp,
2569 (output_port_count_func_t)
2570 bt_component_filter_get_output_port_count,
2571 (borrow_output_port_by_index_func_t)
2572 bt_component_filter_borrow_output_port_by_index_const);
2573 if (ret) {
2574 goto end;
2575 }
2576 }
2577
2578 end:
2579 return ret;
2580 }
2581
2582 static inline
2583 const char *bt_graph_status_str(bt_graph_status status)
2584 {
2585 switch (status) {
2586 case BT_GRAPH_STATUS_OK:
2587 return "BT_GRAPH_STATUS_OK";
2588 case BT_GRAPH_STATUS_END:
2589 return "BT_GRAPH_STATUS_END";
2590 case BT_GRAPH_STATUS_AGAIN:
2591 return "BT_GRAPH_STATUS_AGAIN";
2592 case BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION:
2593 return "BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION";
2594 case BT_GRAPH_STATUS_CANCELED:
2595 return "BT_GRAPH_STATUS_CANCELED";
2596 case BT_GRAPH_STATUS_ERROR:
2597 return "BT_GRAPH_STATUS_ERROR";
2598 case BT_GRAPH_STATUS_NOMEM:
2599 return "BT_GRAPH_STATUS_NOMEM";
2600 default:
2601 return "(unknown)";
2602 }
2603 }
2604
2605 static
2606 int cmd_run(struct bt_config *cfg)
2607 {
2608 int ret = 0;
2609 struct cmd_run_ctx ctx = { 0 };
2610
2611 /* Initialize the command's context and the graph object */
2612 if (cmd_run_ctx_init(&ctx, cfg)) {
2613 BT_LOGE_STR("Cannot initialize the command's context.");
2614 fprintf(stderr, "Cannot initialize the command's context\n");
2615 goto error;
2616 }
2617
2618 if (canceled) {
2619 BT_LOGI_STR("Canceled by user before creating components.");
2620 goto error;
2621 }
2622
2623 BT_LOGI_STR("Creating components.");
2624
2625 /* Create the requested component instances */
2626 if (cmd_run_ctx_create_components(&ctx)) {
2627 BT_LOGE_STR("Cannot create components.");
2628 fprintf(stderr, "Cannot create components\n");
2629 goto error;
2630 }
2631
2632 if (canceled) {
2633 BT_LOGI_STR("Canceled by user before connecting components.");
2634 goto error;
2635 }
2636
2637 BT_LOGI_STR("Connecting components.");
2638
2639 /* Connect the initially visible component ports */
2640 if (cmd_run_ctx_connect_ports(&ctx)) {
2641 BT_LOGE_STR("Cannot connect initial component ports.");
2642 fprintf(stderr, "Cannot connect initial component ports\n");
2643 goto error;
2644 }
2645
2646 if (canceled) {
2647 BT_LOGI_STR("Canceled by user before running the graph.");
2648 goto error;
2649 }
2650
2651 BT_LOGI_STR("Running the graph.");
2652
2653 /* Run the graph */
2654 while (true) {
2655 bt_graph_status graph_status = bt_graph_run(ctx.graph);
2656
2657 /*
2658 * Reset console in case something messed with console
2659 * codes during the graph's execution.
2660 */
2661 printf("%s", bt_common_color_reset());
2662 fflush(stdout);
2663 fprintf(stderr, "%s", bt_common_color_reset());
2664 BT_LOGV("bt_graph_run() returned: status=%s",
2665 bt_graph_status_str(graph_status));
2666
2667 switch (graph_status) {
2668 case BT_GRAPH_STATUS_OK:
2669 break;
2670 case BT_GRAPH_STATUS_CANCELED:
2671 BT_LOGI_STR("Graph was canceled by user.");
2672 goto error;
2673 case BT_GRAPH_STATUS_AGAIN:
2674 if (bt_graph_is_canceled(ctx.graph)) {
2675 BT_LOGI_STR("Graph was canceled by user.");
2676 goto error;
2677 }
2678
2679 if (cfg->cmd_data.run.retry_duration_us > 0) {
2680 BT_LOGV("Got BT_GRAPH_STATUS_AGAIN: sleeping: "
2681 "time-us=%" PRIu64,
2682 cfg->cmd_data.run.retry_duration_us);
2683
2684 if (usleep(cfg->cmd_data.run.retry_duration_us)) {
2685 if (bt_graph_is_canceled(ctx.graph)) {
2686 BT_LOGI_STR("Graph was canceled by user.");
2687 goto error;
2688 }
2689 }
2690 }
2691 break;
2692 case BT_GRAPH_STATUS_END:
2693 goto end;
2694 default:
2695 BT_LOGE_STR("Graph failed to complete successfully");
2696 fprintf(stderr, "Graph failed to complete successfully\n");
2697 goto error;
2698 }
2699 }
2700
2701 goto end;
2702
2703 error:
2704 if (ret == 0) {
2705 ret = -1;
2706 }
2707
2708 end:
2709 cmd_run_ctx_destroy(&ctx);
2710 return ret;
2711 }
2712
2713 static
2714 void warn_command_name_and_directory_clash(struct bt_config *cfg)
2715 {
2716 const char *env_clash;
2717
2718 if (!cfg->command_name) {
2719 return;
2720 }
2721
2722 env_clash = getenv(ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH);
2723 if (env_clash && strcmp(env_clash, "0") == 0) {
2724 return;
2725 }
2726
2727 if (g_file_test(cfg->command_name,
2728 G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) {
2729 fprintf(stderr, "\nNOTE: The `%s` command was executed. If you meant to convert a\n",
2730 cfg->command_name);
2731 fprintf(stderr, "trace located in the local `%s` directory, please use:\n",
2732 cfg->command_name);
2733 fprintf(stderr, "\n");
2734 fprintf(stderr, " babeltrace2 convert %s [OPTIONS]\n",
2735 cfg->command_name);
2736 }
2737 }
2738
2739 static
2740 void init_log_level(void)
2741 {
2742 bt_cli_log_level = bt_log_get_level_from_env(ENV_BABELTRACE_CLI_LOG_LEVEL);
2743 }
2744
2745 static
2746 void set_auto_log_levels(struct bt_config *cfg)
2747 {
2748 const char **env_var_name;
2749
2750 /*
2751 * Override the configuration's default log level if
2752 * BABELTRACE_VERBOSE or BABELTRACE_DEBUG environment variables
2753 * are found for backward compatibility with legacy Babetrace 1.
2754 */
2755 if (getenv("BABELTRACE_DEBUG") &&
2756 strcmp(getenv("BABELTRACE_DEBUG"), "1") == 0) {
2757 cfg->log_level = BT_LOG_VERBOSE;
2758 } else if (getenv("BABELTRACE_VERBOSE") &&
2759 strcmp(getenv("BABELTRACE_VERBOSE"), "1") == 0) {
2760 cfg->log_level = BT_LOG_INFO;
2761 }
2762
2763 /*
2764 * Set log levels according to --debug or --verbose. For
2765 * backward compatibility, --debug is more verbose than
2766 * --verbose. So:
2767 *
2768 * --verbose: INFO log level
2769 * --debug: VERBOSE log level (includes DEBUG, which is
2770 * is less verbose than VERBOSE in the internal
2771 * logging framework)
2772 */
2773 if (!getenv("BABELTRACE_LOGGING_GLOBAL_LEVEL")) {
2774 if (cfg->verbose) {
2775 bt_logging_set_global_level(BT_LOG_INFO);
2776 } else if (cfg->debug) {
2777 bt_logging_set_global_level(BT_LOG_VERBOSE);
2778 } else {
2779 /*
2780 * Set library's default log level if not
2781 * explicitly specified.
2782 */
2783 bt_logging_set_global_level(cfg->log_level);
2784 }
2785 }
2786
2787 if (!getenv(ENV_BABELTRACE_CLI_LOG_LEVEL)) {
2788 if (cfg->verbose) {
2789 bt_cli_log_level = BT_LOG_INFO;
2790 } else if (cfg->debug) {
2791 bt_cli_log_level = BT_LOG_VERBOSE;
2792 } else {
2793 /*
2794 * Set CLI's default log level if not explicitly
2795 * specified.
2796 */
2797 bt_cli_log_level = cfg->log_level;
2798 }
2799 }
2800
2801 env_var_name = log_level_env_var_names;
2802
2803 while (*env_var_name) {
2804 if (!getenv(*env_var_name)) {
2805 if (cfg->verbose) {
2806 g_setenv(*env_var_name, "I", 1);
2807 } else if (cfg->debug) {
2808 g_setenv(*env_var_name, "V", 1);
2809 } else {
2810 char val[2] = { 0 };
2811
2812 /*
2813 * Set module's default log level if not
2814 * explicitly specified.
2815 */
2816 val[0] = bt_log_get_letter_from_level(
2817 cfg->log_level);
2818 g_setenv(*env_var_name, val, 1);
2819 }
2820 }
2821
2822 env_var_name++;
2823 }
2824 }
2825
2826 int main(int argc, const char **argv)
2827 {
2828 int ret;
2829 int retcode;
2830 struct bt_config *cfg;
2831
2832 init_log_level();
2833 set_signal_handler();
2834 init_static_data();
2835 cfg = bt_config_cli_args_create_with_default(argc, argv, &retcode);
2836
2837 if (retcode < 0) {
2838 /* Quit without errors; typically usage/version */
2839 retcode = 0;
2840 BT_LOGI_STR("Quitting without errors.");
2841 goto end;
2842 }
2843
2844 if (retcode > 0) {
2845 BT_LOGE("Command-line error: retcode=%d", retcode);
2846 goto end;
2847 }
2848
2849 if (!cfg) {
2850 BT_LOGE_STR("Failed to create a valid Babeltrace configuration.");
2851 fprintf(stderr, "Failed to create Babeltrace configuration\n");
2852 retcode = 1;
2853 goto end;
2854 }
2855
2856 set_auto_log_levels(cfg);
2857 print_cfg(cfg);
2858
2859 if (cfg->command_needs_plugins) {
2860 ret = load_all_plugins(cfg->plugin_paths);
2861 if (ret) {
2862 BT_LOGE("Failed to load plugins: ret=%d", ret);
2863 retcode = 1;
2864 goto end;
2865 }
2866 }
2867
2868 BT_LOGI("Executing command: cmd=%d, command-name=\"%s\"",
2869 cfg->command, cfg->command_name);
2870
2871 switch (cfg->command) {
2872 case BT_CONFIG_COMMAND_RUN:
2873 ret = cmd_run(cfg);
2874 break;
2875 case BT_CONFIG_COMMAND_LIST_PLUGINS:
2876 ret = cmd_list_plugins(cfg);
2877 break;
2878 case BT_CONFIG_COMMAND_HELP:
2879 ret = cmd_help(cfg);
2880 break;
2881 case BT_CONFIG_COMMAND_QUERY:
2882 ret = cmd_query(cfg);
2883 break;
2884 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
2885 ret = cmd_print_ctf_metadata(cfg);
2886 break;
2887 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
2888 ret = cmd_print_lttng_live_sessions(cfg);
2889 break;
2890 default:
2891 BT_LOGF("Invalid/unknown command: cmd=%d", cfg->command);
2892 abort();
2893 }
2894
2895 BT_LOGI("Command completed: cmd=%d, command-name=\"%s\", ret=%d",
2896 cfg->command, cfg->command_name, ret);
2897 warn_command_name_and_directory_clash(cfg);
2898 retcode = ret ? 1 : 0;
2899
2900 end:
2901 BT_OBJECT_PUT_REF_AND_RESET(cfg);
2902 fini_static_data();
2903 return retcode;
2904 }
BabelTrace - Trace Format Babel Tower
This page took 0.129644 seconds and 5 git commands to generate.