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ae8aacfc0322722689f5e0c79c4d1cb82f9fe375
[babeltrace.git] / cli / babeltrace.c
1 /*
2 * babeltrace.c
3 *
4 * Babeltrace Trace Converter
5 *
6 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
7 *
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 *
10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * SOFTWARE.
27 */
28
29 #define BT_LOG_TAG "CLI"
30 #include "logging.h"
31
32 #include <babeltrace/babeltrace.h>
33 #include <babeltrace/plugin/plugin.h>
34 #include <babeltrace/common-internal.h>
35 #include <babeltrace/graph/component.h>
36 #include <babeltrace/graph/component-source.h>
37 #include <babeltrace/graph/component-sink.h>
38 #include <babeltrace/graph/component-filter.h>
39 #include <babeltrace/graph/component-class.h>
40 #include <babeltrace/graph/port.h>
41 #include <babeltrace/graph/graph.h>
42 #include <babeltrace/graph/connection.h>
43 #include <babeltrace/graph/notification-iterator.h>
44 #include <babeltrace/ref.h>
45 #include <babeltrace/values.h>
46 #include <babeltrace/logging.h>
47 #include <unistd.h>
48 #include <stdlib.h>
49 #include <popt.h>
50 #include <string.h>
51 #include <stdio.h>
52 #include <glib.h>
53 #include <inttypes.h>
54 #include <unistd.h>
55 #include <signal.h>
56 #include "babeltrace-cfg.h"
57 #include "babeltrace-cfg-cli-args.h"
58 #include "babeltrace-cfg-cli-args-default.h"
59
60 #define ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH "BABELTRACE_CLI_WARN_COMMAND_NAME_DIRECTORY_CLASH"
61 #define ENV_BABELTRACE_CLI_LOG_LEVEL "BABELTRACE_CLI_LOG_LEVEL"
62 #define NSEC_PER_SEC 1000000000LL
63
64 /*
65 * Known environment variable names for the log levels of the project's
66 * modules.
67 */
68 static const char* log_level_env_var_names[] = {
69 "BABELTRACE_COMMON_LOG_LEVEL",
70 "BABELTRACE_PLUGIN_CTF_BTR_LOG_LEVEL",
71 "BABELTRACE_PLUGIN_CTF_FS_SRC_LOG_LEVEL",
72 "BABELTRACE_PLUGIN_CTF_LTTNG_LIVE_SRC_LOG_LEVEL",
73 "BABELTRACE_PLUGIN_CTF_METADATA_LOG_LEVEL",
74 "BABELTRACE_PLUGIN_CTF_NOTIF_ITER_LOG_LEVEL",
75 "BABELTRACE_PLUGIN_LTTNG_UTILS_DEBUG_INFO_FLT_LOG_LEVEL",
76 "BABELTRACE_PLUGIN_TEXT_DMESG_SRC_LOG_LEVEL",
77 "BABELTRACE_PLUGIN_UTILS_MUXER_FLT_LOG_LEVEL",
78 "BABELTRACE_PLUGIN_UTILS_TRIMMER_FLT_LOG_LEVEL",
79 "BABELTRACE_PYTHON_PLUGIN_PROVIDER_LOG_LEVEL",
80 NULL,
81 };
82
83 /* Application's processing graph (weak) */
84 static struct bt_graph *the_graph;
85 static bool canceled = false;
86
87 GPtrArray *loaded_plugins;
88
89 static
90 void sigint_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 canceled = true;
101 }
102
103 static
104 void init_static_data(void)
105 {
106 loaded_plugins = g_ptr_array_new_with_free_func(bt_put);
107 }
108
109 static
110 void fini_static_data(void)
111 {
112 g_ptr_array_free(loaded_plugins, TRUE);
113 }
114
115 static
116 struct bt_plugin *find_plugin(const char *name)
117 {
118 int i;
119 struct bt_plugin *plugin = NULL;
120
121 assert(name);
122 BT_LOGD("Finding plugin: name=\"%s\"", name);
123
124 for (i = 0; i < loaded_plugins->len; i++) {
125 plugin = g_ptr_array_index(loaded_plugins, i);
126
127 if (strcmp(name, bt_plugin_get_name(plugin)) == 0) {
128 break;
129 }
130
131 plugin = NULL;
132 }
133
134 if (BT_LOG_ON_DEBUG) {
135 if (plugin) {
136 BT_LOGD("Found plugin: plugin-addr=%p", plugin);
137 } else {
138 BT_LOGD("Cannot find plugin.");
139 }
140 }
141
142 return bt_get(plugin);
143 }
144
145 static
146 struct bt_component_class *find_component_class(const char *plugin_name,
147 const char *comp_class_name,
148 enum bt_component_class_type comp_class_type)
149 {
150 struct bt_component_class *comp_class = NULL;
151 struct bt_plugin *plugin;
152
153 BT_LOGD("Finding component class: plugin-name=\"%s\", "
154 "comp-cls-name=\"%s\", comp-cls-type=%d",
155 plugin_name, comp_class_name, comp_class_type);
156
157 plugin = find_plugin(plugin_name);
158
159 if (!plugin) {
160 goto end;
161 }
162
163 comp_class = bt_plugin_get_component_class_by_name_and_type(plugin,
164 comp_class_name, comp_class_type);
165 BT_PUT(plugin);
166
167 end:
168 if (BT_LOG_ON_DEBUG) {
169 if (comp_class) {
170 BT_LOGD("Found component class: comp-cls-addr=%p",
171 comp_class);
172 } else {
173 BT_LOGD("Cannot find component class.");
174 }
175 }
176
177 return comp_class;
178 }
179
180 static
181 void print_indent(FILE *fp, size_t indent)
182 {
183 size_t i;
184
185 for (i = 0; i < indent; i++) {
186 fprintf(fp, " ");
187 }
188 }
189
190 static
191 const char *component_type_str(enum bt_component_class_type type)
192 {
193 switch (type) {
194 case BT_COMPONENT_CLASS_TYPE_SOURCE:
195 return "source";
196 case BT_COMPONENT_CLASS_TYPE_SINK:
197 return "sink";
198 case BT_COMPONENT_CLASS_TYPE_FILTER:
199 return "filter";
200 case BT_COMPONENT_CLASS_TYPE_UNKNOWN:
201 default:
202 return "(unknown)";
203 }
204 }
205
206 static
207 void print_plugin_comp_cls_opt(FILE *fh, const char *plugin_name,
208 const char *comp_cls_name, enum bt_component_class_type type)
209 {
210 GString *shell_plugin_name = NULL;
211 GString *shell_comp_cls_name = NULL;
212
213 shell_plugin_name = bt_common_shell_quote(plugin_name, false);
214 if (!shell_plugin_name) {
215 goto end;
216 }
217
218 shell_comp_cls_name = bt_common_shell_quote(comp_cls_name, false);
219 if (!shell_comp_cls_name) {
220 goto end;
221 }
222
223 fprintf(fh, "'%s%s%s%s.%s%s%s.%s%s%s'",
224 bt_common_color_bold(),
225 bt_common_color_fg_cyan(),
226 component_type_str(type),
227 bt_common_color_fg_default(),
228 bt_common_color_fg_blue(),
229 shell_plugin_name->str,
230 bt_common_color_fg_default(),
231 bt_common_color_fg_yellow(),
232 shell_comp_cls_name->str,
233 bt_common_color_reset());
234
235 end:
236 if (shell_plugin_name) {
237 g_string_free(shell_plugin_name, TRUE);
238 }
239
240 if (shell_comp_cls_name) {
241 g_string_free(shell_comp_cls_name, TRUE);
242 }
243 }
244
245 static
246 void print_value(FILE *, struct bt_value *, size_t);
247
248 static
249 void print_value_rec(FILE *, struct bt_value *, size_t);
250
251 struct print_map_value_data {
252 size_t indent;
253 FILE *fp;
254 };
255
256 static
257 bt_bool print_map_value(const char *key, struct bt_value *object, void *data)
258 {
259 struct print_map_value_data *print_map_value_data = data;
260
261 print_indent(print_map_value_data->fp, print_map_value_data->indent);
262 fprintf(print_map_value_data->fp, "%s: ", key);
263
264 if (bt_value_is_array(object) &&
265 bt_value_array_is_empty(object)) {
266 fprintf(print_map_value_data->fp, "[ ]\n");
267 return true;
268 }
269
270 if (bt_value_is_map(object) &&
271 bt_value_map_is_empty(object)) {
272 fprintf(print_map_value_data->fp, "{ }\n");
273 return true;
274 }
275
276 if (bt_value_is_array(object) ||
277 bt_value_is_map(object)) {
278 fprintf(print_map_value_data->fp, "\n");
279 }
280
281 print_value_rec(print_map_value_data->fp, object,
282 print_map_value_data->indent + 2);
283 return BT_TRUE;
284 }
285
286 static
287 void print_value_rec(FILE *fp, struct bt_value *value, size_t indent)
288 {
289 bt_bool bool_val;
290 int64_t int_val;
291 double dbl_val;
292 const char *str_val;
293 int size;
294 int i;
295
296 if (!value) {
297 return;
298 }
299
300 switch (bt_value_get_type(value)) {
301 case BT_VALUE_TYPE_NULL:
302 fprintf(fp, "%snull%s\n", bt_common_color_bold(),
303 bt_common_color_reset());
304 break;
305 case BT_VALUE_TYPE_BOOL:
306 bt_value_bool_get(value, &bool_val);
307 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
308 bt_common_color_fg_cyan(), bool_val ? "yes" : "no",
309 bt_common_color_reset());
310 break;
311 case BT_VALUE_TYPE_INTEGER:
312 bt_value_integer_get(value, &int_val);
313 fprintf(fp, "%s%s%" PRId64 "%s\n", bt_common_color_bold(),
314 bt_common_color_fg_red(), int_val,
315 bt_common_color_reset());
316 break;
317 case BT_VALUE_TYPE_FLOAT:
318 bt_value_float_get(value, &dbl_val);
319 fprintf(fp, "%s%s%lf%s\n", bt_common_color_bold(),
320 bt_common_color_fg_red(), dbl_val,
321 bt_common_color_reset());
322 break;
323 case BT_VALUE_TYPE_STRING:
324 bt_value_string_get(value, &str_val);
325 fprintf(fp, "%s%s%s%s\n", bt_common_color_bold(),
326 bt_common_color_fg_green(), str_val,
327 bt_common_color_reset());
328 break;
329 case BT_VALUE_TYPE_ARRAY:
330 size = bt_value_array_size(value);
331 assert(size >= 0);
332
333 if (size == 0) {
334 print_indent(fp, indent);
335 fprintf(fp, "[ ]\n");
336 break;
337 }
338
339 for (i = 0; i < size; i++) {
340 struct bt_value *element =
341 bt_value_array_get(value, i);
342
343 assert(element);
344 print_indent(fp, indent);
345 fprintf(fp, "- ");
346
347 if (bt_value_is_array(element) &&
348 bt_value_array_is_empty(element)) {
349 fprintf(fp, "[ ]\n");
350 continue;
351 }
352
353 if (bt_value_is_map(element) &&
354 bt_value_map_is_empty(element)) {
355 fprintf(fp, "{ }\n");
356 continue;
357 }
358
359 if (bt_value_is_array(element) ||
360 bt_value_is_map(element)) {
361 fprintf(fp, "\n");
362 }
363
364 print_value_rec(fp, element, indent + 2);
365 BT_PUT(element);
366 }
367 break;
368 case BT_VALUE_TYPE_MAP:
369 {
370 struct print_map_value_data data = {
371 .indent = indent,
372 .fp = fp,
373 };
374
375 if (bt_value_map_is_empty(value)) {
376 print_indent(fp, indent);
377 fprintf(fp, "{ }\n");
378 break;
379 }
380
381 bt_value_map_foreach(value, print_map_value, &data);
382 break;
383 }
384 default:
385 abort();
386 }
387 }
388
389 static
390 void print_value(FILE *fp, struct bt_value *value, size_t indent)
391 {
392 if (!bt_value_is_array(value) && !bt_value_is_map(value)) {
393 print_indent(fp, indent);
394 }
395
396 print_value_rec(fp, value, indent);
397 }
398
399 static
400 void print_bt_config_component(struct bt_config_component *bt_config_component)
401 {
402 fprintf(stderr, " ");
403 print_plugin_comp_cls_opt(stderr, bt_config_component->plugin_name->str,
404 bt_config_component->comp_cls_name->str,
405 bt_config_component->type);
406 fprintf(stderr, ":\n");
407
408 if (bt_config_component->instance_name->len > 0) {
409 fprintf(stderr, " Name: %s\n",
410 bt_config_component->instance_name->str);
411 }
412
413 fprintf(stderr, " Parameters:\n");
414 print_value(stderr, bt_config_component->params, 8);
415 }
416
417 static
418 void print_bt_config_components(GPtrArray *array)
419 {
420 size_t i;
421
422 for (i = 0; i < array->len; i++) {
423 struct bt_config_component *cfg_component =
424 bt_config_get_component(array, i);
425 print_bt_config_component(cfg_component);
426 BT_PUT(cfg_component);
427 }
428 }
429
430 static
431 void print_plugin_paths(struct bt_value *plugin_paths)
432 {
433 fprintf(stderr, " Plugin paths:\n");
434 print_value(stderr, plugin_paths, 4);
435 }
436
437 static
438 void print_cfg_run(struct bt_config *cfg)
439 {
440 size_t i;
441
442 print_plugin_paths(cfg->plugin_paths);
443 fprintf(stderr, " Source component instances:\n");
444 print_bt_config_components(cfg->cmd_data.run.sources);
445
446 if (cfg->cmd_data.run.filters->len > 0) {
447 fprintf(stderr, " Filter component instances:\n");
448 print_bt_config_components(cfg->cmd_data.run.filters);
449 }
450
451 fprintf(stderr, " Sink component instances:\n");
452 print_bt_config_components(cfg->cmd_data.run.sinks);
453 fprintf(stderr, " Connections:\n");
454
455 for (i = 0; i < cfg->cmd_data.run.connections->len; i++) {
456 struct bt_config_connection *cfg_connection =
457 g_ptr_array_index(cfg->cmd_data.run.connections,
458 i);
459
460 fprintf(stderr, " %s%s%s -> %s%s%s\n",
461 cfg_connection->upstream_comp_name->str,
462 cfg_connection->upstream_port_glob->len > 0 ? "." : "",
463 cfg_connection->upstream_port_glob->str,
464 cfg_connection->downstream_comp_name->str,
465 cfg_connection->downstream_port_glob->len > 0 ? "." : "",
466 cfg_connection->downstream_port_glob->str);
467 }
468 }
469
470 static
471 void print_cfg_list_plugins(struct bt_config *cfg)
472 {
473 print_plugin_paths(cfg->plugin_paths);
474 }
475
476 static
477 void print_cfg_help(struct bt_config *cfg)
478 {
479 print_plugin_paths(cfg->plugin_paths);
480 }
481
482 static
483 void print_cfg_print_ctf_metadata(struct bt_config *cfg)
484 {
485 print_plugin_paths(cfg->plugin_paths);
486 fprintf(stderr, " Path: %s\n",
487 cfg->cmd_data.print_ctf_metadata.path->str);
488 }
489
490 static
491 void print_cfg_print_lttng_live_sessions(struct bt_config *cfg)
492 {
493 print_plugin_paths(cfg->plugin_paths);
494 fprintf(stderr, " URL: %s\n",
495 cfg->cmd_data.print_lttng_live_sessions.url->str);
496 }
497
498 static
499 void print_cfg_query(struct bt_config *cfg)
500 {
501 print_plugin_paths(cfg->plugin_paths);
502 fprintf(stderr, " Object: `%s`\n", cfg->cmd_data.query.object->str);
503 fprintf(stderr, " Component class:\n");
504 print_bt_config_component(cfg->cmd_data.query.cfg_component);
505 }
506
507 static
508 void print_cfg(struct bt_config *cfg)
509 {
510 if (!BT_LOG_ON_INFO) {
511 return;
512 }
513
514 BT_LOGI_STR("Configuration:");
515 fprintf(stderr, " Debug mode: %s\n", cfg->debug ? "yes" : "no");
516 fprintf(stderr, " Verbose mode: %s\n", cfg->verbose ? "yes" : "no");
517
518 switch (cfg->command) {
519 case BT_CONFIG_COMMAND_RUN:
520 print_cfg_run(cfg);
521 break;
522 case BT_CONFIG_COMMAND_LIST_PLUGINS:
523 print_cfg_list_plugins(cfg);
524 break;
525 case BT_CONFIG_COMMAND_HELP:
526 print_cfg_help(cfg);
527 break;
528 case BT_CONFIG_COMMAND_QUERY:
529 print_cfg_query(cfg);
530 break;
531 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
532 print_cfg_print_ctf_metadata(cfg);
533 break;
534 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
535 print_cfg_print_lttng_live_sessions(cfg);
536 break;
537 default:
538 abort();
539 }
540 }
541
542 static
543 void add_to_loaded_plugins(struct bt_plugin_set *plugin_set)
544 {
545 int64_t i;
546 int64_t count;
547
548 count = bt_plugin_set_get_plugin_count(plugin_set);
549 assert(count >= 0);
550
551 for (i = 0; i < count; i++) {
552 struct bt_plugin *plugin =
553 bt_plugin_set_get_plugin(plugin_set, i);
554 struct bt_plugin *loaded_plugin =
555 find_plugin(bt_plugin_get_name(plugin));
556
557 assert(plugin);
558
559 if (loaded_plugin) {
560 BT_LOGI("Not using plugin: another one already exists with the same name: "
561 "plugin-name=\"%s\", plugin-path=\"%s\", "
562 "existing-plugin-path=\"%s\"",
563 bt_plugin_get_name(plugin),
564 bt_plugin_get_path(plugin),
565 bt_plugin_get_path(loaded_plugin));
566 bt_put(loaded_plugin);
567 } else {
568 /* Add to global array. */
569 BT_LOGD("Adding plugin to loaded plugins: plugin-path=\"%s\"",
570 bt_plugin_get_name(plugin));
571 g_ptr_array_add(loaded_plugins, bt_get(plugin));
572 }
573
574 bt_put(plugin);
575 }
576 }
577
578 static
579 int load_dynamic_plugins(struct bt_value *plugin_paths)
580 {
581 int nr_paths, i, ret = 0;
582
583 nr_paths = bt_value_array_size(plugin_paths);
584 if (nr_paths < 0) {
585 BT_LOGE_STR("Cannot load dynamic plugins: no plugin path.");
586 ret = -1;
587 goto end;
588 }
589
590 BT_LOGI("Loading dynamic plugins.");
591
592 for (i = 0; i < nr_paths; i++) {
593 struct bt_value *plugin_path_value = NULL;
594 const char *plugin_path;
595 struct bt_plugin_set *plugin_set;
596
597 plugin_path_value = bt_value_array_get(plugin_paths, i);
598 bt_value_string_get(plugin_path_value, &plugin_path);
599 assert(plugin_path);
600
601 /*
602 * Skip this if the directory does not exist because
603 * bt_plugin_create_all_from_dir() expects an existing
604 * directory.
605 */
606 if (!g_file_test(plugin_path, G_FILE_TEST_IS_DIR)) {
607 BT_LOGV("Skipping nonexistent directory path: "
608 "path=\"%s\"", plugin_path);
609 BT_PUT(plugin_path_value);
610 continue;
611 }
612
613 plugin_set = bt_plugin_create_all_from_dir(plugin_path, false);
614 if (!plugin_set) {
615 BT_LOGD("Unable to load dynamic plugins: path=\"%s\"",
616 plugin_path);
617 BT_PUT(plugin_path_value);
618 continue;
619 }
620
621 add_to_loaded_plugins(plugin_set);
622 bt_put(plugin_set);
623 BT_PUT(plugin_path_value);
624 }
625 end:
626 return ret;
627 }
628
629 static
630 int load_static_plugins(void)
631 {
632 int ret = 0;
633 struct bt_plugin_set *plugin_set;
634
635 BT_LOGI("Loading static plugins.");
636 plugin_set = bt_plugin_create_all_from_static();
637 if (!plugin_set) {
638 BT_LOGE("Unable to load static plugins.");
639 ret = -1;
640 goto end;
641 }
642
643 add_to_loaded_plugins(plugin_set);
644 bt_put(plugin_set);
645 end:
646 return ret;
647 }
648
649 static
650 int load_all_plugins(struct bt_value *plugin_paths)
651 {
652 int ret = 0;
653
654 if (load_dynamic_plugins(plugin_paths)) {
655 ret = -1;
656 goto end;
657 }
658
659 if (load_static_plugins()) {
660 ret = -1;
661 goto end;
662 }
663
664 BT_LOGI("Loaded all plugins: count=%u", loaded_plugins->len);
665
666 end:
667 return ret;
668 }
669
670 static
671 void print_plugin_info(struct bt_plugin *plugin)
672 {
673 unsigned int major, minor, patch;
674 const char *extra;
675 enum bt_plugin_status version_status;
676 const char *plugin_name;
677 const char *path;
678 const char *author;
679 const char *license;
680 const char *plugin_description;
681
682 plugin_name = bt_plugin_get_name(plugin);
683 path = bt_plugin_get_path(plugin);
684 author = bt_plugin_get_author(plugin);
685 license = bt_plugin_get_license(plugin);
686 plugin_description = bt_plugin_get_description(plugin);
687 version_status = bt_plugin_get_version(plugin, &major, &minor,
688 &patch, &extra);
689 printf("%s%s%s%s:\n", bt_common_color_bold(),
690 bt_common_color_fg_blue(), plugin_name,
691 bt_common_color_reset());
692 printf(" %sPath%s: %s\n", bt_common_color_bold(),
693 bt_common_color_reset(), path ? path : "(None)");
694
695 if (version_status == BT_PLUGIN_STATUS_OK) {
696 printf(" %sVersion%s: %u.%u.%u",
697 bt_common_color_bold(), bt_common_color_reset(),
698 major, minor, patch);
699
700 if (extra) {
701 printf("%s", extra);
702 }
703
704 printf("\n");
705 }
706
707 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
708 bt_common_color_reset(),
709 plugin_description ? plugin_description : "(None)");
710 printf(" %sAuthor%s: %s\n", bt_common_color_bold(),
711 bt_common_color_reset(), author ? author : "(Unknown)");
712 printf(" %sLicense%s: %s\n", bt_common_color_bold(),
713 bt_common_color_reset(),
714 license ? license : "(Unknown)");
715 }
716
717 static
718 int cmd_query(struct bt_config *cfg)
719 {
720 int ret = 0;
721 struct bt_component_class *comp_cls = NULL;
722 struct bt_value *results = NULL;
723
724 comp_cls = find_component_class(cfg->cmd_data.query.cfg_component->plugin_name->str,
725 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
726 cfg->cmd_data.query.cfg_component->type);
727 if (!comp_cls) {
728 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
729 "comp-cls-name=\"%s\", comp-cls-type=%d",
730 cfg->cmd_data.query.cfg_component->plugin_name->str,
731 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
732 cfg->cmd_data.query.cfg_component->type);
733 fprintf(stderr, "%s%sCannot find component class %s",
734 bt_common_color_bold(),
735 bt_common_color_fg_red(),
736 bt_common_color_reset());
737 print_plugin_comp_cls_opt(stderr,
738 cfg->cmd_data.query.cfg_component->plugin_name->str,
739 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
740 cfg->cmd_data.query.cfg_component->type);
741 fprintf(stderr, "\n");
742 ret = -1;
743 goto end;
744 }
745
746 results = bt_component_class_query(comp_cls,
747 cfg->cmd_data.query.object->str,
748 cfg->cmd_data.query.cfg_component->params);
749 if (!results) {
750 BT_LOGE("Failed to query component class: plugin-name=\"%s\", "
751 "comp-cls-name=\"%s\", comp-cls-type=%d "
752 "object=\"%s\"",
753 cfg->cmd_data.query.cfg_component->plugin_name->str,
754 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
755 cfg->cmd_data.query.cfg_component->type,
756 cfg->cmd_data.query.object->str);
757 fprintf(stderr, "%s%sFailed to query info to %s",
758 bt_common_color_bold(),
759 bt_common_color_fg_red(),
760 bt_common_color_reset());
761 print_plugin_comp_cls_opt(stderr,
762 cfg->cmd_data.query.cfg_component->plugin_name->str,
763 cfg->cmd_data.query.cfg_component->comp_cls_name->str,
764 cfg->cmd_data.query.cfg_component->type);
765 fprintf(stderr, "%s%s with object `%s`%s\n",
766 bt_common_color_bold(),
767 bt_common_color_fg_red(),
768 cfg->cmd_data.query.object->str,
769 bt_common_color_reset());
770 ret = -1;
771 goto end;
772 }
773
774 print_value(stdout, results, 0);
775
776 end:
777 bt_put(comp_cls);
778 bt_put(results);
779 return ret;
780 }
781
782 static
783 int cmd_help(struct bt_config *cfg)
784 {
785 int ret = 0;
786 struct bt_plugin *plugin = NULL;
787 size_t i;
788
789 plugin = find_plugin(cfg->cmd_data.help.cfg_component->plugin_name->str);
790 if (!plugin) {
791 BT_LOGE("Cannot find plugin: plugin-name=\"%s\"",
792 cfg->cmd_data.help.cfg_component->plugin_name->str);
793 fprintf(stderr, "%s%sCannot find plugin %s%s%s\n",
794 bt_common_color_bold(), bt_common_color_fg_red(),
795 bt_common_color_fg_blue(),
796 cfg->cmd_data.help.cfg_component->plugin_name->str,
797 bt_common_color_reset());
798 ret = -1;
799 goto end;
800 }
801
802 print_plugin_info(plugin);
803 printf(" %sComponent classes%s: %d\n",
804 bt_common_color_bold(),
805 bt_common_color_reset(),
806 (int) bt_plugin_get_component_class_count(plugin));
807
808
809 if (cfg->cmd_data.help.cfg_component->type !=
810 BT_COMPONENT_CLASS_TYPE_UNKNOWN) {
811 struct bt_component_class *needed_comp_cls =
812 find_component_class(
813 cfg->cmd_data.help.cfg_component->plugin_name->str,
814 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
815 cfg->cmd_data.help.cfg_component->type);
816
817 if (!needed_comp_cls) {
818 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
819 "comp-cls-name=\"%s\", comp-cls-type=%d",
820 cfg->cmd_data.help.cfg_component->plugin_name->str,
821 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
822 cfg->cmd_data.help.cfg_component->type);
823 fprintf(stderr, "\n%s%sCannot find component class %s",
824 bt_common_color_bold(),
825 bt_common_color_fg_red(),
826 bt_common_color_reset());
827 print_plugin_comp_cls_opt(stderr,
828 cfg->cmd_data.help.cfg_component->plugin_name->str,
829 cfg->cmd_data.help.cfg_component->comp_cls_name->str,
830 cfg->cmd_data.help.cfg_component->type);
831 fprintf(stderr, "\n");
832 ret = -1;
833 goto end;
834 }
835
836 bt_put(needed_comp_cls);
837 }
838
839 for (i = 0; i < bt_plugin_get_component_class_count(plugin); i++) {
840 struct bt_component_class *comp_cls =
841 bt_plugin_get_component_class_by_index(plugin, i);
842 const char *comp_class_name =
843 bt_component_class_get_name(comp_cls);
844 const char *comp_class_description =
845 bt_component_class_get_description(comp_cls);
846 const char *comp_class_help =
847 bt_component_class_get_help(comp_cls);
848 enum bt_component_class_type type =
849 bt_component_class_get_type(comp_cls);
850
851 assert(comp_cls);
852
853 if (cfg->cmd_data.help.cfg_component->type !=
854 BT_COMPONENT_CLASS_TYPE_UNKNOWN) {
855 if (strcmp(cfg->cmd_data.help.cfg_component->comp_cls_name->str,
856 comp_class_name) != 0 &&
857 type ==
858 cfg->cmd_data.help.cfg_component->type) {
859 bt_put(comp_cls);
860 continue;
861 }
862 }
863
864 printf("\n");
865 print_plugin_comp_cls_opt(stdout,
866 cfg->cmd_data.help.cfg_component->plugin_name->str,
867 comp_class_name,
868 type);
869 printf("\n");
870 printf(" %sDescription%s: %s\n", bt_common_color_bold(),
871 bt_common_color_reset(),
872 comp_class_description ? comp_class_description : "(None)");
873
874 if (comp_class_help) {
875 printf("\n%s\n", comp_class_help);
876 }
877
878 bt_put(comp_cls);
879 }
880
881 end:
882 bt_put(plugin);
883 return ret;
884 }
885
886 static
887 int cmd_list_plugins(struct bt_config *cfg)
888 {
889 int ret = 0;
890 int plugins_count, component_classes_count = 0, i;
891
892 printf("From the following plugin paths:\n\n");
893 print_value(stdout, cfg->plugin_paths, 2);
894 printf("\n");
895 plugins_count = loaded_plugins->len;
896 if (plugins_count == 0) {
897 printf("No plugins found.\n");
898 goto end;
899 }
900
901 for (i = 0; i < plugins_count; i++) {
902 struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
903
904 component_classes_count += bt_plugin_get_component_class_count(plugin);
905 }
906
907 printf("Found %s%d%s component classes in %s%d%s plugins.\n",
908 bt_common_color_bold(),
909 component_classes_count,
910 bt_common_color_reset(),
911 bt_common_color_bold(),
912 plugins_count,
913 bt_common_color_reset());
914
915 for (i = 0; i < plugins_count; i++) {
916 int j;
917 struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
918
919 component_classes_count =
920 bt_plugin_get_component_class_count(plugin);
921 printf("\n");
922 print_plugin_info(plugin);
923
924 if (component_classes_count == 0) {
925 printf(" %sComponent classes%s: (none)\n",
926 bt_common_color_bold(),
927 bt_common_color_reset());
928 } else {
929 printf(" %sComponent classes%s:\n",
930 bt_common_color_bold(),
931 bt_common_color_reset());
932 }
933
934 for (j = 0; j < component_classes_count; j++) {
935 struct bt_component_class *comp_class =
936 bt_plugin_get_component_class_by_index(
937 plugin, j);
938 const char *comp_class_name =
939 bt_component_class_get_name(comp_class);
940 const char *comp_class_description =
941 bt_component_class_get_description(comp_class);
942 enum bt_component_class_type type =
943 bt_component_class_get_type(comp_class);
944
945 printf(" ");
946 print_plugin_comp_cls_opt(stdout,
947 bt_plugin_get_name(plugin), comp_class_name,
948 type);
949
950 if (comp_class_description) {
951 printf(": %s", comp_class_description);
952 }
953
954 printf("\n");
955 bt_put(comp_class);
956 }
957 }
958
959 end:
960 return ret;
961 }
962
963 static
964 int cmd_print_lttng_live_sessions(struct bt_config *cfg)
965 {
966 int ret = 0;
967 struct bt_component_class *comp_cls = NULL;
968 struct bt_value *results = NULL;
969 struct bt_value *params = NULL;
970 struct bt_value *map = NULL;
971 struct bt_value *v = NULL;
972 static const char * const plugin_name = "ctf";
973 static const char * const comp_cls_name = "lttng-live";
974 static const enum bt_component_class_type comp_cls_type =
975 BT_COMPONENT_CLASS_TYPE_SOURCE;
976 int64_t array_size, i;
977
978 assert(cfg->cmd_data.print_lttng_live_sessions.url);
979 comp_cls = find_component_class(plugin_name, comp_cls_name,
980 comp_cls_type);
981 if (!comp_cls) {
982 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
983 "comp-cls-name=\"%s\", comp-cls-type=%d",
984 plugin_name, comp_cls_name,
985 BT_COMPONENT_CLASS_TYPE_SOURCE);
986 fprintf(stderr, "%s%sCannot find component class %s",
987 bt_common_color_bold(),
988 bt_common_color_fg_red(),
989 bt_common_color_reset());
990 print_plugin_comp_cls_opt(stderr, plugin_name,
991 comp_cls_name, comp_cls_type);
992 fprintf(stderr, "\n");
993 goto error;
994 }
995
996 params = bt_value_map_create();
997 if (!params) {
998 goto error;
999 }
1000
1001 ret = bt_value_map_insert_string(params, "url",
1002 cfg->cmd_data.print_lttng_live_sessions.url->str);
1003 if (ret) {
1004 goto error;
1005 }
1006
1007 results = bt_component_class_query(comp_cls, "sessions",
1008 params);
1009 if (!results) {
1010 BT_LOGE_STR("Failed to query for sessions.");
1011 fprintf(stderr, "%s%sFailed to request sessions%s\n",
1012 bt_common_color_bold(),
1013 bt_common_color_fg_red(),
1014 bt_common_color_reset());
1015 goto error;
1016 }
1017
1018 if (!bt_value_is_array(results)) {
1019 BT_LOGE_STR("Expecting an array for sessions query.");
1020 fprintf(stderr, "%s%sUnexpected type returned by session query%s\n",
1021 bt_common_color_bold(),
1022 bt_common_color_fg_red(),
1023 bt_common_color_reset());
1024 goto error;
1025 }
1026
1027 array_size = bt_value_array_size(results);
1028 for (i = 0; i < array_size; i++) {
1029 const char *url_text;
1030 int64_t timer_us, streams, clients;
1031
1032 map = bt_value_array_get(results, i);
1033 if (!map) {
1034 BT_LOGE_STR("Unexpected empty array entry.");
1035 goto error;
1036 }
1037 if (!bt_value_is_map(map)) {
1038 BT_LOGE_STR("Unexpected entry type.");
1039 goto error;
1040 }
1041
1042 v = bt_value_map_get(map, "url");
1043 if (!v) {
1044 BT_LOGE_STR("Unexpected empty array \"url\" entry.");
1045 goto error;
1046 }
1047 ret = bt_value_string_get(v, &url_text);
1048 assert(ret == 0);
1049 printf("%s", url_text);
1050 BT_PUT(v);
1051
1052 v = bt_value_map_get(map, "timer-us");
1053 if (!v) {
1054 BT_LOGE_STR("Unexpected empty array \"timer-us\" entry.");
1055 goto error;
1056 }
1057 ret = bt_value_integer_get(v, &timer_us);
1058 assert(ret == 0);
1059 printf(" (timer = %" PRIu64 ", ", timer_us);
1060 BT_PUT(v);
1061
1062 v = bt_value_map_get(map, "stream-count");
1063 if (!v) {
1064 BT_LOGE_STR("Unexpected empty array \"stream-count\" entry.");
1065 goto error;
1066 }
1067 ret = bt_value_integer_get(v, &streams);
1068 assert(ret == 0);
1069 printf("%" PRIu64 " stream(s), ", streams);
1070 BT_PUT(v);
1071
1072 v = bt_value_map_get(map, "client-count");
1073 if (!v) {
1074 BT_LOGE_STR("Unexpected empty array \"client-count\" entry.");
1075 goto error;
1076 }
1077 ret = bt_value_integer_get(v, &clients);
1078 assert(ret == 0);
1079 printf("%" PRIu64 " client(s) connected)\n", clients);
1080 BT_PUT(v);
1081
1082 BT_PUT(map);
1083 }
1084 end:
1085 bt_put(v);
1086 bt_put(map);
1087 bt_put(results);
1088 bt_put(params);
1089 bt_put(comp_cls);
1090 return 0;
1091
1092 error:
1093 ret = -1;
1094 goto end;
1095 }
1096
1097 static
1098 int cmd_print_ctf_metadata(struct bt_config *cfg)
1099 {
1100 int ret = 0;
1101 struct bt_component_class *comp_cls = NULL;
1102 struct bt_value *results = NULL;
1103 struct bt_value *params = NULL;
1104 struct bt_value *metadata_text_value = NULL;
1105 const char *metadata_text = NULL;
1106 static const char * const plugin_name = "ctf";
1107 static const char * const comp_cls_name = "fs";
1108 static const enum bt_component_class_type comp_cls_type =
1109 BT_COMPONENT_CLASS_TYPE_SOURCE;
1110
1111 assert(cfg->cmd_data.print_ctf_metadata.path);
1112 comp_cls = find_component_class(plugin_name, comp_cls_name,
1113 comp_cls_type);
1114 if (!comp_cls) {
1115 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
1116 "comp-cls-name=\"%s\", comp-cls-type=%d",
1117 plugin_name, comp_cls_name,
1118 BT_COMPONENT_CLASS_TYPE_SOURCE);
1119 fprintf(stderr, "%s%sCannot find component class %s",
1120 bt_common_color_bold(),
1121 bt_common_color_fg_red(),
1122 bt_common_color_reset());
1123 print_plugin_comp_cls_opt(stderr, plugin_name,
1124 comp_cls_name, comp_cls_type);
1125 fprintf(stderr, "\n");
1126 ret = -1;
1127 goto end;
1128 }
1129
1130 params = bt_value_map_create();
1131 if (!params) {
1132 ret = -1;
1133 goto end;
1134 }
1135
1136 ret = bt_value_map_insert_string(params, "path",
1137 cfg->cmd_data.print_ctf_metadata.path->str);
1138 if (ret) {
1139 ret = -1;
1140 goto end;
1141 }
1142
1143 results = bt_component_class_query(comp_cls, "metadata-info",
1144 params);
1145 if (!results) {
1146 ret = -1;
1147 BT_LOGE_STR("Failed to query for metadata info.");
1148 fprintf(stderr, "%s%sFailed to request metadata info%s\n",
1149 bt_common_color_bold(),
1150 bt_common_color_fg_red(),
1151 bt_common_color_reset());
1152 goto end;
1153 }
1154
1155 metadata_text_value = bt_value_map_get(results, "text");
1156 if (!metadata_text_value) {
1157 BT_LOGE_STR("Cannot find `text` string value in the resulting metadata info object.");
1158 ret = -1;
1159 goto end;
1160 }
1161
1162 ret = bt_value_string_get(metadata_text_value, &metadata_text);
1163 assert(ret == 0);
1164 printf("%s\n", metadata_text);
1165
1166 end:
1167 bt_put(results);
1168 bt_put(params);
1169 bt_put(metadata_text_value);
1170 bt_put(comp_cls);
1171 return 0;
1172 }
1173
1174 struct port_id {
1175 char *instance_name;
1176 char *port_name;
1177 };
1178
1179 struct trace_range {
1180 uint64_t intersection_range_begin_ns;
1181 uint64_t intersection_range_end_ns;
1182 };
1183
1184 static
1185 guint port_id_hash(gconstpointer v)
1186 {
1187 const struct port_id *id = v;
1188
1189 assert(id->instance_name);
1190 assert(id->port_name);
1191
1192 return g_str_hash(id->instance_name) ^ g_str_hash(id->port_name);
1193 }
1194
1195 static
1196 gboolean port_id_equal(gconstpointer v1, gconstpointer v2)
1197 {
1198 const struct port_id *id1 = v1;
1199 const struct port_id *id2 = v2;
1200
1201 return !strcmp(id1->instance_name, id2->instance_name) &&
1202 !strcmp(id1->port_name, id2->port_name);
1203 }
1204
1205 static
1206 void port_id_destroy(gpointer data)
1207 {
1208 struct port_id *id = data;
1209
1210 free(id->instance_name);
1211 free(id->port_name);
1212 free(id);
1213 }
1214
1215 static
1216 void trace_range_destroy(gpointer data)
1217 {
1218 free(data);
1219 }
1220
1221 struct cmd_run_ctx {
1222 /* Owned by this */
1223 GHashTable *components;
1224
1225 /* Owned by this */
1226 struct bt_graph *graph;
1227
1228 /* Weak */
1229 struct bt_config *cfg;
1230
1231 bool connect_ports;
1232
1233 bool stream_intersection_mode;
1234
1235 /*
1236 * Association of struct port_id -> struct trace_range.
1237 */
1238 GHashTable *intersections;
1239 };
1240
1241 /* Returns a timestamp of the form "(-)s.ns" */
1242 static
1243 char *s_from_ns(int64_t ns)
1244 {
1245 int ret;
1246 char *s_ret = NULL;
1247 bool is_negative;
1248 int64_t ts_sec_abs, ts_nsec_abs;
1249 int64_t ts_sec = ns / NSEC_PER_SEC;
1250 int64_t ts_nsec = ns % NSEC_PER_SEC;
1251
1252 if (ts_sec >= 0 && ts_nsec >= 0) {
1253 is_negative = false;
1254 ts_sec_abs = ts_sec;
1255 ts_nsec_abs = ts_nsec;
1256 } else if (ts_sec > 0 && ts_nsec < 0) {
1257 is_negative = false;
1258 ts_sec_abs = ts_sec - 1;
1259 ts_nsec_abs = NSEC_PER_SEC + ts_nsec;
1260 } else if (ts_sec == 0 && ts_nsec < 0) {
1261 is_negative = true;
1262 ts_sec_abs = ts_sec;
1263 ts_nsec_abs = -ts_nsec;
1264 } else if (ts_sec < 0 && ts_nsec > 0) {
1265 is_negative = true;
1266 ts_sec_abs = -(ts_sec + 1);
1267 ts_nsec_abs = NSEC_PER_SEC - ts_nsec;
1268 } else if (ts_sec < 0 && ts_nsec == 0) {
1269 is_negative = true;
1270 ts_sec_abs = -ts_sec;
1271 ts_nsec_abs = ts_nsec;
1272 } else { /* (ts_sec < 0 && ts_nsec < 0) */
1273 is_negative = true;
1274 ts_sec_abs = -ts_sec;
1275 ts_nsec_abs = -ts_nsec;
1276 }
1277
1278 ret = asprintf(&s_ret, "%s%" PRId64 ".%09" PRId64,
1279 is_negative ? "-" : "", ts_sec_abs, ts_nsec_abs);
1280 if (ret < 0) {
1281 s_ret = NULL;
1282 }
1283 return s_ret;
1284 }
1285
1286 static
1287 int cmd_run_ctx_connect_upstream_port_to_downstream_component(
1288 struct cmd_run_ctx *ctx, struct bt_component *upstream_comp,
1289 struct bt_port *upstream_port,
1290 struct bt_config_connection *cfg_conn)
1291 {
1292 int ret = 0;
1293 GQuark downstreamp_comp_name_quark;
1294 struct bt_component *downstream_comp;
1295 int64_t downstream_port_count;
1296 uint64_t i;
1297 int64_t (*port_count_fn)(struct bt_component *);
1298 struct bt_port *(*port_by_index_fn)(struct bt_component *, uint64_t);
1299 enum bt_graph_status status = BT_GRAPH_STATUS_ERROR;
1300 bool insert_trimmer = false;
1301 struct bt_value *trimmer_params = NULL;
1302 char *intersection_begin = NULL;
1303 char *intersection_end = NULL;
1304 struct bt_component *trimmer = NULL;
1305 struct bt_component_class *trimmer_class = NULL;
1306 struct bt_port *trimmer_input = NULL;
1307 struct bt_port *trimmer_output = NULL;
1308
1309 if (ctx->intersections &&
1310 bt_component_get_class_type(upstream_comp) ==
1311 BT_COMPONENT_CLASS_TYPE_SOURCE) {
1312 struct trace_range *range;
1313 struct port_id port_id = {
1314 .instance_name = (char *) bt_component_get_name(upstream_comp),
1315 .port_name = (char *) bt_port_get_name(upstream_port)
1316 };
1317
1318 if (!port_id.instance_name || !port_id.port_name) {
1319 goto error;
1320 }
1321
1322 range = (struct trace_range *) g_hash_table_lookup(
1323 ctx->intersections, &port_id);
1324 if (range) {
1325 enum bt_value_status status;
1326
1327 intersection_begin = s_from_ns(
1328 range->intersection_range_begin_ns);
1329 intersection_end = s_from_ns(
1330 range->intersection_range_end_ns);
1331 if (!intersection_begin || !intersection_end) {
1332 BT_LOGE_STR("Cannot create trimmer argument timestamp string.");
1333 goto error;
1334 }
1335
1336 insert_trimmer = true;
1337 trimmer_params = bt_value_map_create();
1338 if (!trimmer_params) {
1339 goto error;
1340 }
1341
1342 status = bt_value_map_insert_string(trimmer_params,
1343 "begin", intersection_begin);
1344 if (status != BT_VALUE_STATUS_OK) {
1345 goto error;
1346 }
1347 status = bt_value_map_insert_string(trimmer_params,
1348 "end", intersection_end);
1349 if (status != BT_VALUE_STATUS_OK) {
1350 goto error;
1351 }
1352 }
1353
1354 trimmer_class = find_component_class("utils", "trimmer",
1355 BT_COMPONENT_CLASS_TYPE_FILTER);
1356 if (!trimmer_class) {
1357 goto error;
1358 }
1359 }
1360
1361 BT_LOGI("Connecting upstream port to the next available downstream port: "
1362 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1363 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1364 upstream_port, bt_port_get_name(upstream_port),
1365 cfg_conn->downstream_comp_name->str,
1366 cfg_conn->arg->str);
1367 downstreamp_comp_name_quark = g_quark_from_string(
1368 cfg_conn->downstream_comp_name->str);
1369 assert(downstreamp_comp_name_quark > 0);
1370 downstream_comp = g_hash_table_lookup(ctx->components,
1371 GUINT_TO_POINTER(downstreamp_comp_name_quark));
1372 if (!downstream_comp) {
1373 BT_LOGE("Cannot find downstream component: comp-name=\"%s\", "
1374 "conn-arg=\"%s\"", cfg_conn->downstream_comp_name->str,
1375 cfg_conn->arg->str);
1376 fprintf(stderr, "Cannot create connection: cannot find downstream component: %s\n",
1377 cfg_conn->arg->str);
1378 goto error;
1379 }
1380
1381 if (bt_component_is_filter(downstream_comp)) {
1382 port_count_fn = bt_component_filter_get_input_port_count;
1383 port_by_index_fn = bt_component_filter_get_input_port_by_index;
1384 } else if (bt_component_is_sink(downstream_comp)) {
1385 port_count_fn = bt_component_sink_get_input_port_count;
1386 port_by_index_fn = bt_component_sink_get_input_port_by_index;
1387 } else {
1388 /*
1389 * Should never happen because the connections are
1390 * validated before we get here.
1391 */
1392 BT_LOGF("Invalid connection: downstream component is a source: "
1393 "conn-arg=\"%s\"", cfg_conn->arg->str);
1394 abort();
1395 }
1396
1397 downstream_port_count = port_count_fn(downstream_comp);
1398 assert(downstream_port_count >= 0);
1399
1400 for (i = 0; i < downstream_port_count; i++) {
1401 struct bt_port *downstream_port =
1402 port_by_index_fn(downstream_comp, i);
1403 const char *upstream_port_name;
1404 const char *downstream_port_name;
1405
1406 assert(downstream_port);
1407
1408 /* Skip port if it's already connected. */
1409 if (bt_port_is_connected(downstream_port)) {
1410 bt_put(downstream_port);
1411 BT_LOGD("Skipping downstream port: already connected: "
1412 "port-addr=%p, port-name=\"%s\"",
1413 downstream_port,
1414 bt_port_get_name(downstream_port));
1415 continue;
1416 }
1417
1418 downstream_port_name = bt_port_get_name(downstream_port);
1419 assert(downstream_port_name);
1420 upstream_port_name = bt_port_get_name(upstream_port);
1421 assert(upstream_port_name);
1422
1423 if (!bt_common_star_glob_match(
1424 cfg_conn->downstream_port_glob->str, -1ULL,
1425 downstream_port_name, -1ULL)) {
1426 bt_put(downstream_port);
1427 continue;
1428 }
1429
1430 if (insert_trimmer) {
1431 /*
1432 * In order to insert the trimmer between the two
1433 * components that were being connected, we create
1434 * a connection configuration entry which describes
1435 * a connection from the trimmer's output to the
1436 * original input that was being connected.
1437 *
1438 * Hence, the creation of the trimmer will cause the
1439 * graph "new port" listener to establish all downstream
1440 * connections as its output port is connected. We will
1441 * then establish the connection between the original
1442 * upstream source and the trimmer.
1443 */
1444 char *trimmer_name = NULL;
1445 enum bt_graph_status graph_status;
1446
1447 ret = asprintf(&trimmer_name, "%s-%s",
1448 "stream-intersection-trimmer",
1449 upstream_port_name);
1450 if (ret < 0) {
1451 goto error;
1452 }
1453 ret = 0;
1454
1455 ctx->connect_ports = false;
1456 graph_status = bt_graph_add_component(ctx->graph,
1457 trimmer_class, trimmer_name, trimmer_params,
1458 &trimmer);
1459 free(trimmer_name);
1460 if (graph_status != BT_GRAPH_STATUS_OK) {
1461 goto error;
1462 }
1463 assert(trimmer);
1464
1465 trimmer_input =
1466 bt_component_filter_get_input_port_by_index(
1467 trimmer, 0);
1468 if (!trimmer_input) {
1469 goto error;
1470 }
1471 trimmer_output =
1472 bt_component_filter_get_output_port_by_index(
1473 trimmer, 0);
1474 if (!trimmer_output) {
1475 goto error;
1476 }
1477
1478 /*
1479 * Replace the current downstream port by the trimmer's
1480 * upstream port.
1481 */
1482 BT_MOVE(downstream_port, trimmer_input);
1483 downstream_port_name = bt_port_get_name(
1484 downstream_port);
1485 if (!downstream_port_name) {
1486 goto error;
1487 }
1488 }
1489
1490 /* We have a winner! */
1491 status = bt_graph_connect_ports(ctx->graph,
1492 upstream_port, downstream_port, NULL);
1493 BT_PUT(downstream_port);
1494 switch (status) {
1495 case BT_GRAPH_STATUS_OK:
1496 break;
1497 case BT_GRAPH_STATUS_CANCELED:
1498 BT_LOGI_STR("Graph was canceled by user.");
1499 status = BT_GRAPH_STATUS_OK;
1500 break;
1501 case BT_GRAPH_STATUS_COMPONENT_REFUSES_PORT_CONNECTION:
1502 BT_LOGE("A component refused a connection to one of its ports: "
1503 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1504 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1505 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1506 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1507 "conn-arg=\"%s\"",
1508 upstream_comp, bt_component_get_name(upstream_comp),
1509 upstream_port, bt_port_get_name(upstream_port),
1510 downstream_comp, cfg_conn->downstream_comp_name->str,
1511 downstream_port, downstream_port_name,
1512 cfg_conn->arg->str);
1513 fprintf(stderr,
1514 "A component refused a connection to one of its ports (`%s` to `%s`): %s\n",
1515 bt_port_get_name(upstream_port),
1516 downstream_port_name,
1517 cfg_conn->arg->str);
1518 break;
1519 default:
1520 BT_LOGE("Cannot create connection: graph refuses to connect ports: "
1521 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1522 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1523 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1524 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1525 "conn-arg=\"%s\"",
1526 upstream_comp, bt_component_get_name(upstream_comp),
1527 upstream_port, bt_port_get_name(upstream_port),
1528 downstream_comp, cfg_conn->downstream_comp_name->str,
1529 downstream_port, downstream_port_name,
1530 cfg_conn->arg->str);
1531 fprintf(stderr,
1532 "Cannot create connection: graph refuses to connect ports (`%s` to `%s`): %s\n",
1533 bt_port_get_name(upstream_port),
1534 downstream_port_name,
1535 cfg_conn->arg->str);
1536 goto error;
1537 }
1538
1539 BT_LOGI("Connected component ports: "
1540 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1541 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1542 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1543 "downstream-port-addr=%p, downstream-port-name=\"%s\", "
1544 "conn-arg=\"%s\"",
1545 upstream_comp, bt_component_get_name(upstream_comp),
1546 upstream_port, bt_port_get_name(upstream_port),
1547 downstream_comp, cfg_conn->downstream_comp_name->str,
1548 downstream_port, downstream_port_name,
1549 cfg_conn->arg->str);
1550
1551 if (insert_trimmer) {
1552 /*
1553 * The first connection, from the source to the trimmer,
1554 * has been done. We now connect the trimmer to the
1555 * original downstream port.
1556 */
1557 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1558 ctx, trimmer, trimmer_output, cfg_conn);
1559 if (ret) {
1560 goto error;
1561 }
1562 ctx->connect_ports = true;
1563 }
1564 goto end;
1565 }
1566
1567 if (status != BT_GRAPH_STATUS_OK) {
1568 BT_LOGE("Cannot create connection: cannot find a matching downstream port for upstream port: "
1569 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1570 "downstream-comp-name=\"%s\", conn-arg=\"%s\"",
1571 upstream_port, bt_port_get_name(upstream_port),
1572 cfg_conn->downstream_comp_name->str,
1573 cfg_conn->arg->str);
1574 fprintf(stderr,
1575 "Cannot create connection: cannot find a matching downstream port for upstream port `%s`: %s\n",
1576 bt_port_get_name(upstream_port), cfg_conn->arg->str);
1577 goto error;
1578 }
1579
1580 goto end;
1581
1582 error:
1583 ret = -1;
1584
1585 end:
1586 free(intersection_begin);
1587 free(intersection_end);
1588 BT_PUT(trimmer_params);
1589 BT_PUT(trimmer_class);
1590 BT_PUT(trimmer);
1591 BT_PUT(trimmer_input);
1592 BT_PUT(trimmer_output);
1593 return ret;
1594 }
1595
1596 static
1597 int cmd_run_ctx_connect_upstream_port(struct cmd_run_ctx *ctx,
1598 struct bt_port *upstream_port)
1599 {
1600 int ret = 0;
1601 const char *upstream_port_name;
1602 const char *upstream_comp_name;
1603 struct bt_component *upstream_comp = NULL;
1604 size_t i;
1605
1606 assert(ctx);
1607 assert(upstream_port);
1608 upstream_port_name = bt_port_get_name(upstream_port);
1609 assert(upstream_port_name);
1610 upstream_comp = bt_port_get_component(upstream_port);
1611 if (!upstream_comp) {
1612 BT_LOGW("Upstream port to connect is not part of a component: "
1613 "port-addr=%p, port-name=\"%s\"",
1614 upstream_port, upstream_port_name);
1615 ret = -1;
1616 goto end;
1617 }
1618
1619 upstream_comp_name = bt_component_get_name(upstream_comp);
1620 assert(upstream_comp_name);
1621 BT_LOGI("Connecting upstream port: comp-addr=%p, comp-name=\"%s\", "
1622 "port-addr=%p, port-name=\"%s\"",
1623 upstream_comp, upstream_comp_name,
1624 upstream_port, upstream_port_name);
1625
1626 for (i = 0; i < ctx->cfg->cmd_data.run.connections->len; i++) {
1627 struct bt_config_connection *cfg_conn =
1628 g_ptr_array_index(
1629 ctx->cfg->cmd_data.run.connections, i);
1630
1631 if (strcmp(cfg_conn->upstream_comp_name->str,
1632 upstream_comp_name)) {
1633 continue;
1634 }
1635
1636 if (!bt_common_star_glob_match(
1637 cfg_conn->upstream_port_glob->str,
1638 -1ULL, upstream_port_name, -1ULL)) {
1639 continue;
1640 }
1641
1642 ret = cmd_run_ctx_connect_upstream_port_to_downstream_component(
1643 ctx, upstream_comp, upstream_port, cfg_conn);
1644 if (ret) {
1645 BT_LOGE("Cannot connect upstream port: "
1646 "port-addr=%p, port-name=\"%s\"",
1647 upstream_port,
1648 upstream_port_name);
1649 fprintf(stderr,
1650 "Cannot connect port `%s` of component `%s` to a downstream port: %s\n",
1651 upstream_port_name,
1652 upstream_comp_name,
1653 cfg_conn->arg->str);
1654 goto error;
1655 }
1656 goto end;
1657 }
1658
1659 BT_LOGE("Cannot connect upstream port: port does not match any connection argument: "
1660 "port-addr=%p, port-name=\"%s\"", upstream_port,
1661 upstream_port_name);
1662 fprintf(stderr,
1663 "Cannot create connection: upstream port `%s` does not match any connection\n",
1664 upstream_port_name);
1665
1666 error:
1667 ret = -1;
1668
1669 end:
1670 bt_put(upstream_comp);
1671 return ret;
1672 }
1673
1674 static
1675 void graph_port_added_listener(struct bt_port *port, void *data)
1676 {
1677 struct bt_component *comp = NULL;
1678 struct cmd_run_ctx *ctx = data;
1679
1680 comp = bt_port_get_component(port);
1681 BT_LOGI("Port added to a graph's component: comp-addr=%p, "
1682 "comp-name=\"%s\", port-addr=%p, port-name=\"%s\"",
1683 comp, comp ? bt_component_get_name(comp) : "",
1684 port, bt_port_get_name(port));
1685
1686 if (!ctx->connect_ports) {
1687 goto end;
1688 }
1689
1690 if (!comp) {
1691 BT_LOGW_STR("Port has no component.");
1692 goto end;
1693 }
1694
1695 if (bt_port_is_connected(port)) {
1696 BT_LOGW_STR("Port is already connected.");
1697 goto end;
1698 }
1699
1700 if (!bt_port_is_output(port)) {
1701 BT_LOGI_STR("Skipping input port.");
1702 goto end;
1703 }
1704
1705 if (cmd_run_ctx_connect_upstream_port(ctx, port)) {
1706 BT_LOGF_STR("Cannot connect upstream port.");
1707 fprintf(stderr, "Added port could not be connected: aborting\n");
1708 abort();
1709 }
1710
1711 end:
1712 bt_put(comp);
1713 return;
1714 }
1715
1716 static
1717 void graph_port_removed_listener(struct bt_component *component,
1718 struct bt_port *port, void *data)
1719 {
1720 BT_LOGI("Port removed from a graph's component: comp-addr=%p, "
1721 "comp-name=\"%s\", port-addr=%p, port-name=\"%s\"",
1722 component, bt_component_get_name(component),
1723 port, bt_port_get_name(port));
1724 }
1725
1726 static
1727 void graph_ports_connected_listener(struct bt_port *upstream_port,
1728 struct bt_port *downstream_port, void *data)
1729 {
1730 struct bt_component *upstream_comp = bt_port_get_component(upstream_port);
1731 struct bt_component *downstream_comp = bt_port_get_component(downstream_port);
1732
1733 assert(upstream_comp);
1734 assert(downstream_comp);
1735 BT_LOGI("Graph's component ports connected: "
1736 "upstream-comp-addr=%p, upstream-comp-name=\"%s\", "
1737 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1738 "downstream-comp-addr=%p, downstream-comp-name=\"%s\", "
1739 "downstream-port-addr=%p, downstream-port-name=\"%s\"",
1740 upstream_comp, bt_component_get_name(upstream_comp),
1741 upstream_port, bt_port_get_name(upstream_port),
1742 downstream_comp, bt_component_get_name(downstream_comp),
1743 downstream_port, bt_port_get_name(downstream_port));
1744 bt_put(upstream_comp);
1745 bt_put(downstream_comp);
1746 }
1747
1748 static
1749 void graph_ports_disconnected_listener(
1750 struct bt_component *upstream_component,
1751 struct bt_component *downstream_component,
1752 struct bt_port *upstream_port, struct bt_port *downstream_port,
1753 void *data)
1754 {
1755 BT_LOGI("Graph's component ports disconnected: "
1756 "upstream-port-addr=%p, upstream-port-name=\"%s\", "
1757 "downstream-port-addr=%p, downstream-port-name=\"%s\"",
1758 upstream_port, bt_port_get_name(upstream_port),
1759 downstream_port, bt_port_get_name(downstream_port));
1760 }
1761
1762 static
1763 void cmd_run_ctx_destroy(struct cmd_run_ctx *ctx)
1764 {
1765 if (!ctx) {
1766 return;
1767 }
1768
1769 if (ctx->components) {
1770 g_hash_table_destroy(ctx->components);
1771 ctx->components = NULL;
1772 }
1773
1774 if (ctx->intersections) {
1775 g_hash_table_destroy(ctx->intersections);
1776 ctx->intersections = NULL;
1777 }
1778
1779 BT_PUT(ctx->graph);
1780 the_graph = NULL;
1781 ctx->cfg = NULL;
1782 }
1783
1784 static
1785 int cmd_run_ctx_init(struct cmd_run_ctx *ctx, struct bt_config *cfg)
1786 {
1787 int ret = 0;
1788
1789 ctx->cfg = cfg;
1790 ctx->connect_ports = false;
1791 ctx->components = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1792 NULL, bt_put);
1793 if (!ctx->components) {
1794 goto error;
1795 }
1796
1797 if (cfg->cmd_data.run.stream_intersection_mode) {
1798 ctx->stream_intersection_mode = true;
1799 ctx->intersections = g_hash_table_new_full(port_id_hash,
1800 port_id_equal, port_id_destroy, trace_range_destroy);
1801 if (!ctx->intersections) {
1802 goto error;
1803 }
1804 }
1805
1806 ctx->graph = bt_graph_create();
1807 if (!ctx->graph) {
1808 goto error;
1809 }
1810
1811 the_graph = ctx->graph;
1812 ret = bt_graph_add_port_added_listener(ctx->graph,
1813 graph_port_added_listener, ctx);
1814 if (ret < 0) {
1815 BT_LOGE_STR("Cannot add \"port added\" listener to graph.");
1816 goto error;
1817 }
1818
1819 ret = bt_graph_add_port_removed_listener(ctx->graph,
1820 graph_port_removed_listener, ctx);
1821 if (ret < 0) {
1822 BT_LOGE_STR("Cannot add \"port removed\" listener to graph.");
1823 goto error;
1824 }
1825
1826 ret = bt_graph_add_ports_connected_listener(ctx->graph,
1827 graph_ports_connected_listener, ctx);
1828 if (ret < 0) {
1829 BT_LOGE_STR("Cannot add \"ports connected\" listener to graph.");
1830 goto error;
1831 }
1832
1833 ret = bt_graph_add_ports_disconnected_listener(ctx->graph,
1834 graph_ports_disconnected_listener, ctx);
1835 if (ret < 0) {
1836 BT_LOGE_STR("Cannot add \"ports disconnected\" listener to graph.");
1837 goto error;
1838 }
1839
1840 goto end;
1841
1842 error:
1843 cmd_run_ctx_destroy(ctx);
1844 ret = -1;
1845
1846 end:
1847 return ret;
1848 }
1849
1850 static
1851 int set_stream_intersections(struct cmd_run_ctx *ctx,
1852 struct bt_config_component *cfg_comp,
1853 struct bt_component_class *comp_cls)
1854 {
1855 int ret = 0;
1856 uint64_t trace_idx;
1857 int64_t trace_count;
1858 enum bt_value_status value_status;
1859 const char *path = NULL;
1860 struct bt_value *component_path_value = NULL;
1861 struct bt_value *query_params = NULL;
1862 struct bt_value *query_result = NULL;
1863 struct bt_value *trace_info = NULL;
1864 struct bt_value *intersection_range = NULL;
1865 struct bt_value *intersection_begin = NULL;
1866 struct bt_value *intersection_end = NULL;
1867 struct bt_value *stream_path_value = NULL;
1868 struct bt_value *stream_paths = NULL;
1869 struct bt_value *stream_infos = NULL;
1870 struct bt_value *stream_info = NULL;
1871 struct port_id *port_id = NULL;
1872 struct trace_range *trace_range = NULL;
1873
1874 component_path_value = bt_value_map_get(cfg_comp->params, "path");
1875 if (!bt_value_is_string(component_path_value)) {
1876 BT_LOGD("Cannot get path parameter: component-name=%s",
1877 cfg_comp->instance_name->str);
1878 ret = -1;
1879 goto error;
1880 }
1881
1882 value_status = bt_value_string_get(component_path_value, &path);
1883 if (value_status != BT_VALUE_STATUS_OK) {
1884 BT_LOGD("Cannot get path string value: component-name=%s",
1885 cfg_comp->instance_name->str);
1886 ret = -1;
1887 goto error;
1888 }
1889
1890 query_params = bt_value_map_create();
1891 if (!query_params) {
1892 BT_LOGE_STR("Cannot create query parameters.");
1893 ret = -1;
1894 goto error;
1895 }
1896
1897 value_status = bt_value_map_insert(query_params, "path", component_path_value);
1898 if (value_status != BT_VALUE_STATUS_OK) {
1899 BT_LOGE_STR("Cannot insert path parameter in query paramater map.");
1900 ret = -1;
1901 goto error;
1902 }
1903
1904 query_result = bt_component_class_query(comp_cls, "trace-info",
1905 query_params);
1906 if (!query_result) {
1907 BT_LOGD("Component class \'%s\' does not support the \'trace-info\' query.",
1908 bt_component_class_get_name(comp_cls));
1909 ret = -1;
1910 goto error;
1911 }
1912
1913 if (!bt_value_is_array(query_result)) {
1914 BT_LOGD("Unexpected format of \'trace-info\' query result: "
1915 "component-class-name=%s",
1916 bt_component_class_get_name(comp_cls));
1917 ret = -1;
1918 goto error;
1919 }
1920
1921 trace_count = bt_value_array_size(query_result);
1922 if (trace_count < 0) {
1923 ret = -1;
1924 goto error;
1925 }
1926
1927 for (trace_idx = 0; trace_idx < trace_count; trace_idx++) {
1928 int64_t begin, end;
1929 uint64_t stream_idx;
1930 int64_t stream_count;
1931
1932 trace_info = bt_value_array_get(query_result, trace_idx);
1933 if (!trace_info || !bt_value_is_map(trace_info)) {
1934 ret = -1;
1935 BT_LOGD_STR("Cannot retrieve trace from query result.");
1936 goto error;
1937 }
1938
1939 intersection_range = bt_value_map_get(trace_info,
1940 "intersection-range-ns");
1941 if (!intersection_range) {
1942 ret = -1;
1943 BT_LOGD_STR("Cannot retrieve \'intersetion-range-ns\' field from query result.");
1944 goto error;
1945 }
1946
1947 intersection_begin = bt_value_map_get(intersection_range,
1948 "begin");
1949 if (!intersection_begin) {
1950 ret = -1;
1951 BT_LOGD_STR("Cannot retrieve intersection-range-ns \'begin\' field from query result.");
1952 goto error;
1953 }
1954
1955 intersection_end = bt_value_map_get(intersection_range,
1956 "end");
1957 if (!intersection_end) {
1958 ret = -1;
1959 BT_LOGD_STR("Cannot retrieve intersection-range-ns \'end\' field from query result.");
1960 goto error;
1961 }
1962
1963 value_status = bt_value_integer_get(intersection_begin, &begin);
1964 if (value_status != BT_VALUE_STATUS_OK) {
1965 ret = -1;
1966 BT_LOGD_STR("Cannot retrieve value of intersection-range-ns \'begin\' field from query result.");
1967 goto error;
1968 }
1969
1970 value_status = bt_value_integer_get(intersection_end, &end);
1971 if (value_status != BT_VALUE_STATUS_OK) {
1972 ret = -1;
1973 BT_LOGD_STR("Cannot retrieve value of intersection-range-ns \'end\' field from query result.");
1974 goto error;
1975 }
1976
1977 if (begin < 0 || end < 0 || end < begin) {
1978 BT_LOGW("Invalid trace stream intersection values: "
1979 "intersection-range-ns:begin=%" PRId64
1980 ", intersection-range-ns:end=%" PRId64,
1981 begin, end);
1982 ret = -1;
1983 goto error;
1984 }
1985
1986 stream_infos = bt_value_map_get(trace_info, "streams");
1987 if (!stream_infos || !bt_value_is_array(stream_infos)) {
1988 ret = -1;
1989 BT_LOGD_STR("Cannot retrieve stream informations from trace in query result.");
1990 goto error;
1991 }
1992
1993 stream_count = bt_value_array_size(stream_infos);
1994 if (stream_count < 0) {
1995 ret = -1;
1996 goto error;
1997 }
1998
1999 /*
2000 * FIXME
2001 *
2002 * The first path of a stream's "paths" is currently used to
2003 * associate streams/ports to a given trace intersection.
2004 *
2005 * This is a fragile hack as it relies on the port names
2006 * being set to the various streams path.
2007 *
2008 * A stream name should be introduced as part of the trace-info
2009 * query result.
2010 */
2011 for (stream_idx = 0; stream_idx < stream_count; stream_idx++) {
2012 const char *stream_path;
2013
2014 port_id = g_new0(struct port_id, 1);
2015 if (!port_id) {
2016 ret = -1;
2017 BT_LOGE_STR("Cannot allocate memory for port_id structure.");
2018 goto error;
2019 }
2020 port_id->instance_name = strdup(cfg_comp->instance_name->str);
2021 if (!port_id->instance_name) {
2022 ret = -1;
2023 BT_LOGE_STR("Cannot allocate memory for port_id component instance name.");
2024 goto error;
2025 }
2026
2027 trace_range = g_new0(struct trace_range, 1);
2028 if (!trace_range) {
2029 ret = -1;
2030 BT_LOGE_STR("Cannot allocate memory for trace_range structure.");
2031 goto error;
2032 }
2033 trace_range->intersection_range_begin_ns = begin;
2034 trace_range->intersection_range_end_ns = end;
2035
2036 stream_info = bt_value_array_get(stream_infos,
2037 stream_idx);
2038 if (!stream_info || !bt_value_is_map(stream_info)) {
2039 ret = -1;
2040 BT_LOGD_STR("Cannot retrieve stream informations from trace in query result.");
2041 goto error;
2042 }
2043
2044 stream_paths = bt_value_map_get(stream_info, "paths");
2045 if (!stream_paths || !bt_value_is_array(stream_paths)) {
2046 ret = -1;
2047 BT_LOGD_STR("Cannot retrieve stream paths from trace in query result.");
2048 goto error;
2049 }
2050
2051 stream_path_value = bt_value_array_get(stream_paths, 0);
2052 if (!stream_path_value ||
2053 !bt_value_is_string(stream_path_value)) {
2054 ret = -1;
2055 BT_LOGD_STR("Cannot retrieve stream path value from trace in query result.");
2056 goto error;
2057 }
2058
2059 value_status = bt_value_string_get(stream_path_value,
2060 &stream_path);
2061 if (value_status != BT_VALUE_STATUS_OK) {
2062 ret = -1;
2063 goto error;
2064 }
2065
2066 port_id->port_name = strdup(stream_path);
2067 if (!port_id->port_name) {
2068 ret = -1;
2069 BT_LOGE_STR("Cannot allocate memory for port_id port_name.");
2070 goto error;
2071 }
2072
2073 BT_LOGD("Inserting stream intersection ");
2074
2075 g_hash_table_insert(ctx->intersections, port_id, trace_range);
2076
2077 port_id = NULL;
2078 trace_range = NULL;
2079 BT_PUT(stream_info);
2080 BT_PUT(stream_paths);
2081 BT_PUT(stream_path_value);
2082 }
2083
2084 BT_PUT(trace_info);
2085 BT_PUT(stream_paths);
2086 BT_PUT(stream_path_value);
2087 BT_PUT(intersection_range);
2088 BT_PUT(intersection_begin);
2089 BT_PUT(intersection_end);
2090 BT_PUT(stream_paths);
2091 BT_PUT(stream_path_value);
2092 }
2093
2094 goto end;
2095
2096 error:
2097 fprintf(stderr, "%s%sCannot determine stream intersection of trace at path \'%s\'.%s\n",
2098 bt_common_color_bold(),
2099 bt_common_color_fg_yellow(),
2100 path ? path : "(unknown)",
2101 bt_common_color_reset());
2102 end:
2103 bt_put(component_path_value);
2104 bt_put(query_params);
2105 bt_put(query_result);
2106 bt_put(trace_info);
2107 bt_put(intersection_range);
2108 bt_put(intersection_begin);
2109 bt_put(intersection_end);
2110 bt_put(stream_infos);
2111 bt_put(stream_info);
2112 bt_put(stream_paths);
2113 bt_put(stream_path_value);
2114 g_free(port_id);
2115 g_free(trace_range);
2116 return ret;
2117 }
2118
2119 static
2120 int cmd_run_ctx_create_components_from_config_components(
2121 struct cmd_run_ctx *ctx, GPtrArray *cfg_components)
2122 {
2123 size_t i;
2124 struct bt_component_class *comp_cls = NULL;
2125 struct bt_component *comp = NULL;
2126 int ret = 0;
2127
2128 for (i = 0; i < cfg_components->len; i++) {
2129 struct bt_config_component *cfg_comp =
2130 g_ptr_array_index(cfg_components, i);
2131 GQuark quark;
2132
2133 comp_cls = find_component_class(cfg_comp->plugin_name->str,
2134 cfg_comp->comp_cls_name->str, cfg_comp->type);
2135 if (!comp_cls) {
2136 BT_LOGE("Cannot find component class: plugin-name=\"%s\", "
2137 "comp-cls-name=\"%s\", comp-cls-type=%d",
2138 cfg_comp->plugin_name->str,
2139 cfg_comp->comp_cls_name->str,
2140 cfg_comp->type);
2141 fprintf(stderr, "%s%sCannot find component class %s",
2142 bt_common_color_bold(),
2143 bt_common_color_fg_red(),
2144 bt_common_color_reset());
2145 print_plugin_comp_cls_opt(stderr,
2146 cfg_comp->plugin_name->str,
2147 cfg_comp->comp_cls_name->str,
2148 cfg_comp->type);
2149 fprintf(stderr, "\n");
2150 goto error;
2151 }
2152
2153 ret = bt_graph_add_component(ctx->graph, comp_cls,
2154 cfg_comp->instance_name->str, cfg_comp->params, &comp);
2155 if (ret) {
2156 BT_LOGE("Cannot create component: plugin-name=\"%s\", "
2157 "comp-cls-name=\"%s\", comp-cls-type=%d, "
2158 "comp-name=\"%s\"",
2159 cfg_comp->plugin_name->str,
2160 cfg_comp->comp_cls_name->str,
2161 cfg_comp->type, cfg_comp->instance_name->str);
2162 fprintf(stderr, "%s%sCannot create component `%s`%s\n",
2163 bt_common_color_bold(),
2164 bt_common_color_fg_red(),
2165 cfg_comp->instance_name->str,
2166 bt_common_color_reset());
2167 goto error;
2168 }
2169
2170 if (ctx->stream_intersection_mode &&
2171 cfg_comp->type == BT_COMPONENT_CLASS_TYPE_SOURCE) {
2172 ret = set_stream_intersections(ctx, cfg_comp, comp_cls);
2173 if (ret) {
2174 goto error;
2175 }
2176 }
2177
2178 BT_LOGI("Created and inserted component: comp-addr=%p, comp-name=\"%s\"",
2179 comp, cfg_comp->instance_name->str);
2180 quark = g_quark_from_string(cfg_comp->instance_name->str);
2181 assert(quark > 0);
2182 g_hash_table_insert(ctx->components,
2183 GUINT_TO_POINTER(quark), comp);
2184 comp = NULL;
2185 BT_PUT(comp_cls);
2186 }
2187
2188 goto end;
2189
2190 error:
2191 ret = -1;
2192
2193 end:
2194 bt_put(comp);
2195 bt_put(comp_cls);
2196 return ret;
2197 }
2198
2199 static
2200 int cmd_run_ctx_create_components(struct cmd_run_ctx *ctx)
2201 {
2202 int ret = 0;
2203
2204 /*
2205 * Make sure that, during this phase, our graph's "port added"
2206 * listener does not connect ports while we are creating the
2207 * components because we have a special, initial phase for
2208 * this.
2209 */
2210 ctx->connect_ports = false;
2211
2212 ret = cmd_run_ctx_create_components_from_config_components(
2213 ctx, ctx->cfg->cmd_data.run.sources);
2214 if (ret) {
2215 ret = -1;
2216 goto end;
2217 }
2218
2219 ret = cmd_run_ctx_create_components_from_config_components(
2220 ctx, ctx->cfg->cmd_data.run.filters);
2221 if (ret) {
2222 ret = -1;
2223 goto end;
2224 }
2225
2226 ret = cmd_run_ctx_create_components_from_config_components(
2227 ctx, ctx->cfg->cmd_data.run.sinks);
2228 if (ret) {
2229 ret = -1;
2230 goto end;
2231 }
2232
2233 end:
2234 return ret;
2235 }
2236
2237 static
2238 int cmd_run_ctx_connect_comp_ports(struct cmd_run_ctx *ctx,
2239 struct bt_component *comp,
2240 int64_t (*port_count_fn)(struct bt_component *),
2241 struct bt_port *(*port_by_index_fn)(struct bt_component *, uint64_t))
2242 {
2243 int ret = 0;
2244 int64_t count;
2245 uint64_t i;
2246
2247 count = port_count_fn(comp);
2248 assert(count >= 0);
2249
2250 for (i = 0; i < count; i++) {
2251 struct bt_port *upstream_port = port_by_index_fn(comp, i);
2252
2253 assert(upstream_port);
2254 ret = cmd_run_ctx_connect_upstream_port(ctx, upstream_port);
2255 bt_put(upstream_port);
2256 if (ret) {
2257 goto end;
2258 }
2259 }
2260
2261 end:
2262 return ret;
2263 }
2264
2265 static
2266 int cmd_run_ctx_connect_ports(struct cmd_run_ctx *ctx)
2267 {
2268 int ret = 0;
2269 GHashTableIter iter;
2270 gpointer g_name_quark, g_comp;
2271
2272 ctx->connect_ports = true;
2273 g_hash_table_iter_init(&iter, ctx->components);
2274
2275 while (g_hash_table_iter_next(&iter, &g_name_quark, &g_comp)) {
2276 int64_t (*port_count_fn)(struct bt_component *);
2277 struct bt_port *(*port_by_index_fn)(struct bt_component *, uint64_t);
2278
2279 if (bt_component_is_source(g_comp)) {
2280 port_count_fn =
2281 bt_component_source_get_output_port_count;
2282 port_by_index_fn =
2283 bt_component_source_get_output_port_by_index;
2284 } else if (bt_component_is_filter(g_comp)) {
2285 port_count_fn =
2286 bt_component_filter_get_output_port_count;
2287 port_by_index_fn =
2288 bt_component_filter_get_output_port_by_index;
2289 } else {
2290 continue;
2291 }
2292
2293 ret = cmd_run_ctx_connect_comp_ports(ctx,
2294 g_comp, port_count_fn, port_by_index_fn);
2295 if (ret) {
2296 goto end;
2297 }
2298 }
2299
2300 end:
2301 return ret;
2302 }
2303
2304 static inline
2305 const char *bt_graph_status_str(enum bt_graph_status status)
2306 {
2307 switch (status) {
2308 case BT_GRAPH_STATUS_CANCELED:
2309 return "BT_GRAPH_STATUS_CANCELED";
2310 case BT_GRAPH_STATUS_AGAIN:
2311 return "BT_GRAPH_STATUS_AGAIN";
2312 case BT_GRAPH_STATUS_END:
2313 return "BT_GRAPH_STATUS_END";
2314 case BT_GRAPH_STATUS_OK:
2315 return "BT_GRAPH_STATUS_OK";
2316 case BT_GRAPH_STATUS_INVALID:
2317 return "BT_GRAPH_STATUS_INVALID";
2318 case BT_GRAPH_STATUS_NO_SINK:
2319 return "BT_GRAPH_STATUS_NO_SINK";
2320 case BT_GRAPH_STATUS_ERROR:
2321 return "BT_GRAPH_STATUS_ERROR";
2322 default:
2323 return "(unknown)";
2324 }
2325 }
2326
2327 static
2328 int cmd_run(struct bt_config *cfg)
2329 {
2330 int ret = 0;
2331 struct cmd_run_ctx ctx = { 0 };
2332
2333 /* Initialize the command's context and the graph object */
2334 if (cmd_run_ctx_init(&ctx, cfg)) {
2335 BT_LOGE_STR("Cannot initialize the command's context.");
2336 fprintf(stderr, "Cannot initialize the command's context\n");
2337 goto error;
2338 }
2339
2340 if (canceled) {
2341 BT_LOGI_STR("Canceled by user before creating components.");
2342 goto error;
2343 }
2344
2345 BT_LOGI_STR("Creating components.");
2346
2347 /* Create the requested component instances */
2348 if (cmd_run_ctx_create_components(&ctx)) {
2349 BT_LOGE_STR("Cannot create components.");
2350 fprintf(stderr, "Cannot create components\n");
2351 goto error;
2352 }
2353
2354 if (canceled) {
2355 BT_LOGI_STR("Canceled by user before connecting components.");
2356 goto error;
2357 }
2358
2359 BT_LOGI_STR("Connecting components.");
2360
2361 /* Connect the initially visible component ports */
2362 if (cmd_run_ctx_connect_ports(&ctx)) {
2363 BT_LOGE_STR("Cannot connect initial component ports.");
2364 fprintf(stderr, "Cannot connect initial component ports\n");
2365 goto error;
2366 }
2367
2368 if (canceled) {
2369 BT_LOGI_STR("Canceled by user before running the graph.");
2370 goto error;
2371 }
2372
2373 BT_LOGI_STR("Running the graph.");
2374
2375 /* Run the graph */
2376 while (true) {
2377 enum bt_graph_status graph_status = bt_graph_run(ctx.graph);
2378
2379 /*
2380 * Reset console in case something messed with console
2381 * codes during the graph's execution.
2382 */
2383 printf("%s", bt_common_color_reset());
2384 fflush(stdout);
2385 fprintf(stderr, "%s", bt_common_color_reset());
2386 BT_LOGV("bt_graph_run() returned: status=%s",
2387 bt_graph_status_str(graph_status));
2388
2389 switch (graph_status) {
2390 case BT_GRAPH_STATUS_OK:
2391 break;
2392 case BT_GRAPH_STATUS_CANCELED:
2393 BT_LOGI_STR("Graph was canceled by user.");
2394 goto error;
2395 case BT_GRAPH_STATUS_AGAIN:
2396 if (bt_graph_is_canceled(ctx.graph)) {
2397 BT_LOGI_STR("Graph was canceled by user.");
2398 goto error;
2399 }
2400
2401 if (cfg->cmd_data.run.retry_duration_us > 0) {
2402 BT_LOGV("Got BT_GRAPH_STATUS_AGAIN: sleeping: "
2403 "time-us=%" PRIu64,
2404 cfg->cmd_data.run.retry_duration_us);
2405
2406 if (usleep(cfg->cmd_data.run.retry_duration_us)) {
2407 if (bt_graph_is_canceled(ctx.graph)) {
2408 BT_LOGI_STR("Graph was canceled by user.");
2409 goto error;
2410 }
2411 }
2412 }
2413 break;
2414 case BT_COMPONENT_STATUS_END:
2415 goto end;
2416 default:
2417 BT_LOGE_STR("Graph failed to complete successfully");
2418 fprintf(stderr, "Graph failed to complete successfully\n");
2419 goto error;
2420 }
2421 }
2422
2423 goto end;
2424
2425 error:
2426 if (ret == 0) {
2427 ret = -1;
2428 }
2429
2430 end:
2431 cmd_run_ctx_destroy(&ctx);
2432 return ret;
2433 }
2434
2435 static
2436 void warn_command_name_and_directory_clash(struct bt_config *cfg)
2437 {
2438 const char *env_clash;
2439
2440 if (!cfg->command_name) {
2441 return;
2442 }
2443
2444 env_clash = getenv(ENV_BABELTRACE_WARN_COMMAND_NAME_DIRECTORY_CLASH);
2445 if (env_clash && strcmp(env_clash, "0") == 0) {
2446 return;
2447 }
2448
2449 if (g_file_test(cfg->command_name,
2450 G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) {
2451 fprintf(stderr, "\nNOTE: The `%s` command was executed. If you meant to convert a\n",
2452 cfg->command_name);
2453 fprintf(stderr, "trace located in the local `%s` directory, please use:\n",
2454 cfg->command_name);
2455 fprintf(stderr, "\n");
2456 fprintf(stderr, " babeltrace convert %s [OPTIONS]\n",
2457 cfg->command_name);
2458 }
2459 }
2460
2461 static
2462 void init_log_level(void)
2463 {
2464 bt_cli_log_level = bt_log_get_level_from_env(ENV_BABELTRACE_CLI_LOG_LEVEL);
2465 }
2466
2467 static
2468 void set_auto_log_levels(struct bt_config *cfg)
2469 {
2470 const char **env_var_name;
2471
2472 /*
2473 * Override the configuration's default log level if
2474 * BABELTRACE_VERBOSE or BABELTRACE_DEBUG environment variables
2475 * are found for backward compatibility with legacy Babetrace 1.
2476 */
2477 if (getenv("BABELTRACE_DEBUG") &&
2478 strcmp(getenv("BABELTRACE_DEBUG"), "1") == 0) {
2479 cfg->log_level = 'V';
2480 } else if (getenv("BABELTRACE_VERBOSE") &&
2481 strcmp(getenv("BABELTRACE_VERBOSE"), "1") == 0) {
2482 cfg->log_level = 'I';
2483 }
2484
2485 /*
2486 * Set log levels according to --debug or --verbose. For
2487 * backward compatibility, --debug is more verbose than
2488 * --verbose. So:
2489 *
2490 * --verbose: INFO log level
2491 * --debug: VERBOSE log level (includes DEBUG, which is
2492 * is less verbose than VERBOSE in the internal
2493 * logging framework)
2494 */
2495 if (!getenv("BABELTRACE_LOGGING_GLOBAL_LEVEL")) {
2496 if (cfg->verbose) {
2497 bt_logging_set_global_level(BT_LOGGING_LEVEL_INFO);
2498 } else if (cfg->debug) {
2499 bt_logging_set_global_level(BT_LOGGING_LEVEL_VERBOSE);
2500 } else {
2501 /*
2502 * Set library's default log level if not
2503 * explicitly specified.
2504 */
2505 switch (cfg->log_level) {
2506 case 'N':
2507 bt_logging_set_global_level(BT_LOGGING_LEVEL_NONE);
2508 break;
2509 case 'V':
2510 bt_logging_set_global_level(BT_LOGGING_LEVEL_VERBOSE);
2511 break;
2512 case 'D':
2513 bt_logging_set_global_level(BT_LOGGING_LEVEL_DEBUG);
2514 break;
2515 case 'I':
2516 bt_logging_set_global_level(BT_LOGGING_LEVEL_INFO);
2517 break;
2518 case 'W':
2519 bt_logging_set_global_level(BT_LOGGING_LEVEL_WARN);
2520 break;
2521 case 'E':
2522 bt_logging_set_global_level(BT_LOGGING_LEVEL_ERROR);
2523 break;
2524 case 'F':
2525 bt_logging_set_global_level(BT_LOGGING_LEVEL_FATAL);
2526 break;
2527 default:
2528 abort();
2529 }
2530 }
2531 }
2532
2533 if (!getenv(ENV_BABELTRACE_CLI_LOG_LEVEL)) {
2534 if (cfg->verbose) {
2535 bt_cli_log_level = BT_LOG_INFO;
2536 } else if (cfg->debug) {
2537 bt_cli_log_level = BT_LOG_VERBOSE;
2538 } else {
2539 /*
2540 * Set CLI's default log level if not explicitly
2541 * specified.
2542 */
2543 switch (cfg->log_level) {
2544 case 'N':
2545 bt_cli_log_level = BT_LOG_NONE;
2546 break;
2547 case 'V':
2548 bt_cli_log_level = BT_LOG_VERBOSE;
2549 break;
2550 case 'D':
2551 bt_cli_log_level = BT_LOG_DEBUG;
2552 break;
2553 case 'I':
2554 bt_cli_log_level = BT_LOG_INFO;
2555 break;
2556 case 'W':
2557 bt_cli_log_level = BT_LOG_WARN;
2558 break;
2559 case 'E':
2560 bt_cli_log_level = BT_LOG_ERROR;
2561 break;
2562 case 'F':
2563 bt_cli_log_level = BT_LOG_FATAL;
2564 break;
2565 default:
2566 abort();
2567 }
2568 }
2569 }
2570
2571 env_var_name = log_level_env_var_names;
2572
2573 while (*env_var_name) {
2574 if (!getenv(*env_var_name)) {
2575 if (cfg->verbose) {
2576 g_setenv(*env_var_name, "I", 1);
2577 } else if (cfg->debug) {
2578 g_setenv(*env_var_name, "V", 1);
2579 } else {
2580 char val[2] = { 0 };
2581
2582 /*
2583 * Set module's default log level if not
2584 * explicitly specified.
2585 */
2586 val[0] = cfg->log_level;
2587 g_setenv(*env_var_name, val, 1);
2588 }
2589 }
2590
2591 env_var_name++;
2592 }
2593 }
2594
2595 static
2596 void set_sigint_handler(void)
2597 {
2598 struct sigaction new_action, old_action;
2599
2600 new_action.sa_handler = sigint_handler;
2601 sigemptyset(&new_action.sa_mask);
2602 new_action.sa_flags = 0;
2603 sigaction(SIGINT, NULL, &old_action);
2604
2605 if (old_action.sa_handler != SIG_IGN) {
2606 sigaction(SIGINT, &new_action, NULL);
2607 }
2608 }
2609
2610 int main(int argc, const char **argv)
2611 {
2612 int ret;
2613 int retcode;
2614 struct bt_config *cfg;
2615
2616 init_log_level();
2617 set_sigint_handler();
2618 init_static_data();
2619 cfg = bt_config_cli_args_create_with_default(argc, argv, &retcode);
2620
2621 if (retcode < 0) {
2622 /* Quit without errors; typically usage/version */
2623 retcode = 0;
2624 BT_LOGI_STR("Quitting without errors.");
2625 goto end;
2626 }
2627
2628 if (retcode > 0) {
2629 BT_LOGE("Command-line error: retcode=%d", retcode);
2630 goto end;
2631 }
2632
2633 if (!cfg) {
2634 BT_LOGE_STR("Failed to create a valid Babeltrace configuration.");
2635 fprintf(stderr, "Failed to create Babeltrace configuration\n");
2636 retcode = 1;
2637 goto end;
2638 }
2639
2640 set_auto_log_levels(cfg);
2641 print_cfg(cfg);
2642
2643 if (cfg->command_needs_plugins) {
2644 ret = load_all_plugins(cfg->plugin_paths);
2645 if (ret) {
2646 BT_LOGE("Failed to load plugins: ret=%d", ret);
2647 retcode = 1;
2648 goto end;
2649 }
2650 }
2651
2652 BT_LOGI("Executing command: cmd=%d, command-name=\"%s\"",
2653 cfg->command, cfg->command_name);
2654
2655 switch (cfg->command) {
2656 case BT_CONFIG_COMMAND_RUN:
2657 ret = cmd_run(cfg);
2658 break;
2659 case BT_CONFIG_COMMAND_LIST_PLUGINS:
2660 ret = cmd_list_plugins(cfg);
2661 break;
2662 case BT_CONFIG_COMMAND_HELP:
2663 ret = cmd_help(cfg);
2664 break;
2665 case BT_CONFIG_COMMAND_QUERY:
2666 ret = cmd_query(cfg);
2667 break;
2668 case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
2669 ret = cmd_print_ctf_metadata(cfg);
2670 break;
2671 case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
2672 ret = cmd_print_lttng_live_sessions(cfg);
2673 break;
2674 default:
2675 BT_LOGF("Invalid/unknown command: cmd=%d", cfg->command);
2676 abort();
2677 }
2678
2679 BT_LOGI("Command completed: cmd=%d, command-name=\"%s\", ret=%d",
2680 cfg->command, cfg->command_name, ret);
2681 warn_command_name_and_directory_clash(cfg);
2682 retcode = ret ? 1 : 0;
2683
2684 end:
2685 BT_PUT(cfg);
2686 fini_static_data();
2687 return retcode;
2688 }
BabelTrace - Trace Format Babel Tower
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