Commit | Line | Data |
---|---|---|
f3ed775e DG |
1 | /* |
2 | * Copyright (C) 2011 - David Goulet <david.goulet@polymtl.ca> | |
3 | * | |
d14d33bf AM |
4 | * This program is free software; you can redistribute it and/or modify |
5 | * it under the terms of the GNU General Public License, version 2 only, | |
6 | * as published by the Free Software Foundation. | |
f3ed775e DG |
7 | * |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
d14d33bf AM |
13 | * You should have received a copy of the GNU General Public License along |
14 | * with this program; if not, write to the Free Software Foundation, Inc., | |
15 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
f3ed775e DG |
16 | */ |
17 | ||
18 | #define _GNU_SOURCE | |
9f19cc17 | 19 | #include <inttypes.h> |
f3ed775e DG |
20 | #include <popt.h> |
21 | #include <stdio.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
7a3d1328 | 24 | #include <assert.h> |
f3ed775e | 25 | |
fb14d0d8 | 26 | #include <common/mi-lttng.h> |
5b4c34a7 | 27 | #include <lttng/constant.h> |
fb14d0d8 | 28 | |
c399183f | 29 | #include "../command.h" |
f3ed775e | 30 | |
9f19cc17 DG |
31 | static int opt_userspace; |
32 | static int opt_kernel; | |
3c6a091f | 33 | static int opt_jul; |
5cdb6027 | 34 | static int opt_log4j; |
9f19cc17 DG |
35 | static char *opt_channel; |
36 | static int opt_domain; | |
f37d259d | 37 | static int opt_fields; |
834978fd | 38 | static int opt_syscall; |
d78d6610 DG |
39 | #if 0 |
40 | /* Not implemented yet */ | |
41 | static char *opt_cmd_name; | |
42 | static pid_t opt_pid; | |
43 | #endif | |
9f19cc17 DG |
44 | |
45 | const char *indent4 = " "; | |
46 | const char *indent6 = " "; | |
47 | const char *indent8 = " "; | |
f3ed775e DG |
48 | |
49 | enum { | |
50 | OPT_HELP = 1, | |
eeac7d46 | 51 | OPT_USERSPACE, |
679b4943 | 52 | OPT_LIST_OPTIONS, |
f3ed775e DG |
53 | }; |
54 | ||
cd80958d | 55 | static struct lttng_handle *handle; |
fb14d0d8 | 56 | static struct mi_writer *writer; |
cd80958d | 57 | |
f3ed775e DG |
58 | static struct poptOption long_options[] = { |
59 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
60 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
9f19cc17 | 61 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, |
3c6a091f | 62 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 63 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
d78d6610 DG |
64 | #if 0 |
65 | /* Not implemented yet */ | |
66 | {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, | |
67 | {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, | |
68 | #else | |
69 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, | |
70 | #endif | |
9f19cc17 DG |
71 | {"channel", 'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0}, |
72 | {"domain", 'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0}, | |
f37d259d | 73 | {"fields", 'f', POPT_ARG_VAL, &opt_fields, 1, 0, 0}, |
834978fd | 74 | {"syscall", 'S', POPT_ARG_VAL, &opt_syscall, 1, 0, 0}, |
679b4943 | 75 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
f3ed775e DG |
76 | {0, 0, 0, 0, 0, 0, 0} |
77 | }; | |
78 | ||
79 | /* | |
80 | * usage | |
81 | */ | |
82 | static void usage(FILE *ofp) | |
83 | { | |
747361fe | 84 | fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [SESSION OPTIONS]]\n"); |
9f19cc17 DG |
85 | fprintf(ofp, "\n"); |
86 | fprintf(ofp, "With no arguments, list available tracing session(s)\n"); | |
87 | fprintf(ofp, "\n"); | |
27221701 DG |
88 | fprintf(ofp, "Without a session, -k lists available kernel events\n"); |
89 | fprintf(ofp, "Without a session, -u lists available userspace events\n"); | |
9f19cc17 DG |
90 | fprintf(ofp, "\n"); |
91 | fprintf(ofp, " -h, --help Show this help\n"); | |
27221701 | 92 | fprintf(ofp, " --list-options Simple listing of options\n"); |
9f19cc17 DG |
93 | fprintf(ofp, " -k, --kernel Select kernel domain\n"); |
94 | fprintf(ofp, " -u, --userspace Select user-space domain.\n"); | |
3c6a091f | 95 | fprintf(ofp, " -j, --jul Apply for Java application using JUL\n"); |
9ad71f16 | 96 | fprintf(ofp, " -l, --log4j Apply for Java application using LOG4J\n"); |
f37d259d | 97 | fprintf(ofp, " -f, --fields List event fields.\n"); |
834978fd | 98 | fprintf(ofp, " --syscall List available system calls.\n"); |
d78d6610 | 99 | #if 0 |
9f19cc17 | 100 | fprintf(ofp, " -p, --pid PID List user-space events by PID\n"); |
d78d6610 | 101 | #endif |
f3ed775e | 102 | fprintf(ofp, "\n"); |
27221701 | 103 | fprintf(ofp, "Session Options:\n"); |
9f19cc17 DG |
104 | fprintf(ofp, " -c, --channel NAME List details of a channel\n"); |
105 | fprintf(ofp, " -d, --domain List available domain(s)\n"); | |
f3ed775e DG |
106 | fprintf(ofp, "\n"); |
107 | } | |
108 | ||
109 | /* | |
9f19cc17 | 110 | * Get command line from /proc for a specific pid. |
f3ed775e | 111 | * |
9f19cc17 DG |
112 | * On success, return an allocated string pointer to the proc cmdline. |
113 | * On error, return NULL. | |
f3ed775e DG |
114 | */ |
115 | static char *get_cmdline_by_pid(pid_t pid) | |
116 | { | |
117 | int ret; | |
1ad31aec | 118 | FILE *fp = NULL; |
f3ed775e | 119 | char *cmdline = NULL; |
5b4c34a7 JG |
120 | /* Can't go bigger than /proc/LTTNG_MAX_PID/cmdline */ |
121 | char path[sizeof("/proc//cmdline") + sizeof(LTTNG_MAX_PID_STR) - 1]; | |
f3ed775e DG |
122 | |
123 | snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); | |
124 | fp = fopen(path, "r"); | |
125 | if (fp == NULL) { | |
126 | goto end; | |
127 | } | |
128 | ||
129 | /* Caller must free() *cmdline */ | |
8639413f | 130 | cmdline = zmalloc(PATH_MAX); |
f6962219 JG |
131 | if (!cmdline) { |
132 | perror("malloc cmdline"); | |
133 | goto end; | |
134 | } | |
f3ed775e | 135 | ret = fread(cmdline, 1, PATH_MAX, fp); |
f40799e8 DG |
136 | if (ret < 0) { |
137 | perror("fread proc list"); | |
138 | } | |
f3ed775e DG |
139 | |
140 | end: | |
1ad31aec DG |
141 | if (fp) { |
142 | fclose(fp); | |
143 | } | |
f3ed775e DG |
144 | return cmdline; |
145 | } | |
b551a063 | 146 | |
464dd62d MD |
147 | static |
148 | const char *active_string(int value) | |
149 | { | |
150 | switch (value) { | |
2cbf8fed DG |
151 | case 0: return "inactive"; |
152 | case 1: return "active"; | |
464dd62d MD |
153 | case -1: return ""; |
154 | default: return NULL; | |
155 | } | |
156 | } | |
157 | ||
2cbf8fed DG |
158 | static const char *snapshot_string(int value) |
159 | { | |
160 | switch (value) { | |
161 | case 1: | |
162 | return " snapshot"; | |
163 | default: | |
164 | return ""; | |
165 | } | |
166 | } | |
167 | ||
464dd62d MD |
168 | static |
169 | const char *enabled_string(int value) | |
170 | { | |
171 | switch (value) { | |
b09f0429 MD |
172 | case 0: return " [disabled]"; |
173 | case 1: return " [enabled]"; | |
464dd62d MD |
174 | case -1: return ""; |
175 | default: return NULL; | |
176 | } | |
177 | } | |
178 | ||
fceb65df MD |
179 | static |
180 | const char *filter_string(int value) | |
181 | { | |
182 | switch (value) { | |
183 | case 1: return " [with filter]"; | |
184 | default: return ""; | |
185 | } | |
186 | } | |
187 | ||
4634f12e JI |
188 | static |
189 | const char *exclusion_string(int value) | |
190 | { | |
191 | switch (value) { | |
192 | case 1: return " [has exclusions]"; | |
193 | default: return ""; | |
194 | } | |
195 | } | |
196 | ||
1f0e17de DG |
197 | static const char *logleveltype_string(enum lttng_loglevel_type value) |
198 | { | |
199 | switch (value) { | |
af6bce80 DG |
200 | case LTTNG_EVENT_LOGLEVEL_ALL: |
201 | return ":"; | |
1f0e17de | 202 | case LTTNG_EVENT_LOGLEVEL_RANGE: |
af6bce80 | 203 | return " <="; |
1f0e17de | 204 | case LTTNG_EVENT_LOGLEVEL_SINGLE: |
af6bce80 | 205 | return " =="; |
1f0e17de | 206 | default: |
af6bce80 | 207 | return " <<TYPE UNKN>>"; |
1f0e17de DG |
208 | } |
209 | } | |
210 | ||
834978fd DG |
211 | static const char *bitness_event(enum lttng_event_flag flags) |
212 | { | |
213 | if (flags & LTTNG_EVENT_FLAG_SYSCALL_32) { | |
214 | if (flags & LTTNG_EVENT_FLAG_SYSCALL_64) { | |
215 | return " [32/64-bit]"; | |
216 | } else { | |
217 | return " [32-bit]"; | |
218 | } | |
219 | } else if (flags & LTTNG_EVENT_FLAG_SYSCALL_64) { | |
220 | return " [64-bit]"; | |
221 | } else { | |
222 | return ""; | |
223 | } | |
224 | } | |
225 | ||
b551a063 DG |
226 | /* |
227 | * Pretty print single event. | |
228 | */ | |
229 | static void print_events(struct lttng_event *event) | |
230 | { | |
231 | switch (event->type) { | |
232 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 233 | { |
8b703175 | 234 | if (event->loglevel != -1) { |
af6bce80 | 235 | MSG("%s%s (loglevel%s %s (%d)) (type: tracepoint)%s%s%s", |
8b703175 | 236 | indent6, |
81afa345 | 237 | event->name, |
1f0e17de | 238 | logleveltype_string(event->loglevel_type), |
970d848b | 239 | mi_lttng_loglevel_string(event->loglevel, handle->domain.type), |
8b703175 | 240 | event->loglevel, |
fceb65df | 241 | enabled_string(event->enabled), |
4634f12e | 242 | exclusion_string(event->exclusion), |
fceb65df | 243 | filter_string(event->filter)); |
8b703175 | 244 | } else { |
4634f12e | 245 | MSG("%s%s (type: tracepoint)%s%s%s", |
8b703175 MD |
246 | indent6, |
247 | event->name, | |
fceb65df | 248 | enabled_string(event->enabled), |
4634f12e | 249 | exclusion_string(event->exclusion), |
fceb65df | 250 | filter_string(event->filter)); |
8b703175 | 251 | } |
b551a063 | 252 | break; |
e4baff1e | 253 | } |
1896972b DG |
254 | case LTTNG_EVENT_FUNCTION: |
255 | MSG("%s%s (type: function)%s%s", indent6, | |
256 | event->name, enabled_string(event->enabled), | |
257 | filter_string(event->filter)); | |
258 | if (event->attr.probe.addr != 0) { | |
259 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
260 | } else { | |
261 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
262 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
263 | } | |
264 | break; | |
b551a063 | 265 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
266 | MSG("%s%s (type: probe)%s%s", indent6, |
267 | event->name, enabled_string(event->enabled), | |
268 | filter_string(event->filter)); | |
b551a063 DG |
269 | if (event->attr.probe.addr != 0) { |
270 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
271 | } else { | |
272 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
273 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
274 | } | |
275 | break; | |
b551a063 | 276 | case LTTNG_EVENT_FUNCTION_ENTRY: |
fceb65df MD |
277 | MSG("%s%s (type: function)%s%s", indent6, |
278 | event->name, enabled_string(event->enabled), | |
279 | filter_string(event->filter)); | |
b551a063 DG |
280 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
281 | break; | |
282 | case LTTNG_EVENT_SYSCALL: | |
834978fd DG |
283 | MSG("%s%s%s%s%s", indent6, event->name, |
284 | (opt_syscall ? "" : " (type:syscall)"), | |
fceb65df | 285 | enabled_string(event->enabled), |
834978fd | 286 | bitness_event(event->flags)); |
b551a063 DG |
287 | break; |
288 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
289 | MSG("%s (type: noop)%s%s", indent6, |
290 | enabled_string(event->enabled), | |
291 | filter_string(event->filter)); | |
b551a063 DG |
292 | break; |
293 | case LTTNG_EVENT_ALL: | |
294 | /* We should never have "all" events in list. */ | |
295 | assert(0); | |
296 | break; | |
297 | } | |
298 | } | |
299 | ||
f37d259d MD |
300 | static const char *field_type(struct lttng_event_field *field) |
301 | { | |
302 | switch(field->type) { | |
303 | case LTTNG_EVENT_FIELD_INTEGER: | |
304 | return "integer"; | |
305 | case LTTNG_EVENT_FIELD_ENUM: | |
306 | return "enum"; | |
307 | case LTTNG_EVENT_FIELD_FLOAT: | |
308 | return "float"; | |
309 | case LTTNG_EVENT_FIELD_STRING: | |
310 | return "string"; | |
311 | case LTTNG_EVENT_FIELD_OTHER: | |
312 | default: /* fall-through */ | |
313 | return "unknown"; | |
314 | } | |
315 | } | |
316 | ||
317 | /* | |
318 | * Pretty print single event fields. | |
319 | */ | |
320 | static void print_event_field(struct lttng_event_field *field) | |
321 | { | |
322 | if (!field->field_name[0]) { | |
323 | return; | |
324 | } | |
d8fbe2a9 | 325 | MSG("%sfield: %s (%s)%s", indent8, field->field_name, |
45a32634 | 326 | field_type(field), field->nowrite ? " [no write]" : ""); |
f37d259d MD |
327 | } |
328 | ||
fb14d0d8 JR |
329 | /* |
330 | * Machine interface | |
331 | * Jul and ust event listing | |
332 | */ | |
5cdb6027 | 333 | static int mi_list_agent_ust_events(struct lttng_event *events, int count, |
fb14d0d8 JR |
334 | struct lttng_domain *domain) |
335 | { | |
336 | int ret, i; | |
337 | pid_t cur_pid = 0; | |
338 | char *cmdline = NULL; | |
339 | int pid_element_open = 0; | |
340 | ||
341 | /* Open domains element */ | |
342 | ret = mi_lttng_domains_open(writer); | |
343 | if (ret) { | |
344 | goto end; | |
345 | } | |
346 | ||
347 | /* Write domain */ | |
348 | ret = mi_lttng_domain(writer, domain, 1); | |
349 | if (ret) { | |
350 | goto end; | |
351 | } | |
352 | ||
353 | /* Open pids element */ | |
354 | ret = mi_lttng_pids_open(writer); | |
355 | if (ret) { | |
356 | goto end; | |
357 | } | |
358 | ||
359 | for (i = 0; i < count; i++) { | |
360 | if (cur_pid != events[i].pid) { | |
361 | if (pid_element_open) { | |
362 | /* Close the previous events and pid element */ | |
363 | ret = mi_lttng_close_multi_element(writer, 2); | |
364 | if (ret) { | |
365 | goto end; | |
366 | } | |
367 | pid_element_open = 0; | |
368 | } | |
369 | ||
370 | cur_pid = events[i].pid; | |
371 | cmdline = get_cmdline_by_pid(cur_pid); | |
372 | if (!cmdline) { | |
373 | ret = CMD_ERROR; | |
374 | goto end; | |
375 | } | |
376 | ||
377 | if (!pid_element_open) { | |
378 | /* Open and write a pid element */ | |
379 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
380 | if (ret) { | |
381 | goto error; | |
382 | } | |
383 | ||
384 | /* Open events element */ | |
385 | ret = mi_lttng_events_open(writer); | |
386 | if (ret) { | |
387 | goto error; | |
388 | } | |
389 | ||
390 | pid_element_open = 1; | |
391 | } | |
392 | free(cmdline); | |
393 | } | |
394 | ||
395 | /* Write an event */ | |
970d848b | 396 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
fb14d0d8 JR |
397 | if (ret) { |
398 | goto end; | |
399 | } | |
400 | } | |
401 | ||
402 | /* Close pids */ | |
403 | ret = mi_lttng_writer_close_element(writer); | |
404 | if (ret) { | |
405 | goto end; | |
406 | } | |
407 | ||
408 | /* Close domain, domains */ | |
409 | ret = mi_lttng_close_multi_element(writer, 2); | |
410 | end: | |
411 | return ret; | |
412 | error: | |
413 | free(cmdline); | |
414 | return ret; | |
415 | } | |
416 | ||
5cdb6027 | 417 | static int list_agent_events(void) |
3c6a091f | 418 | { |
fb14d0d8 | 419 | int i, size, ret = CMD_SUCCESS; |
3c6a091f DG |
420 | struct lttng_domain domain; |
421 | struct lttng_handle *handle; | |
422 | struct lttng_event *event_list; | |
423 | pid_t cur_pid = 0; | |
424 | char *cmdline = NULL; | |
5cdb6027 | 425 | const char *agent_domain_str; |
3c6a091f DG |
426 | |
427 | memset(&domain, 0, sizeof(domain)); | |
5cdb6027 DG |
428 | if (opt_jul) { |
429 | domain.type = LTTNG_DOMAIN_JUL; | |
430 | } else if (opt_log4j) { | |
431 | domain.type = LTTNG_DOMAIN_LOG4J; | |
432 | } | |
433 | ||
434 | agent_domain_str = get_domain_str(domain.type); | |
435 | ||
436 | DBG("Getting %s tracing events", agent_domain_str); | |
3c6a091f DG |
437 | |
438 | handle = lttng_create_handle(NULL, &domain); | |
439 | if (handle == NULL) { | |
fb14d0d8 JR |
440 | ret = CMD_ERROR; |
441 | goto end; | |
3c6a091f DG |
442 | } |
443 | ||
444 | size = lttng_list_tracepoints(handle, &event_list); | |
445 | if (size < 0) { | |
5cdb6027 DG |
446 | ERR("Unable to list %s events: %s", agent_domain_str, |
447 | lttng_strerror(size)); | |
fb14d0d8 JR |
448 | ret = CMD_ERROR; |
449 | goto end; | |
3c6a091f DG |
450 | } |
451 | ||
fb14d0d8 JR |
452 | if (lttng_opt_mi) { |
453 | /* Mi print */ | |
5cdb6027 | 454 | ret = mi_list_agent_ust_events(event_list, size, &domain); |
fb14d0d8 JR |
455 | if (ret) { |
456 | ret = CMD_ERROR; | |
457 | goto error; | |
3c6a091f | 458 | } |
fb14d0d8 JR |
459 | } else { |
460 | /* Pretty print */ | |
5cdb6027 DG |
461 | MSG("%s events (Logger name):\n-------------------------", |
462 | agent_domain_str); | |
3c6a091f | 463 | |
fb14d0d8 JR |
464 | if (size == 0) { |
465 | MSG("None"); | |
466 | } | |
3c6a091f | 467 | |
fb14d0d8 JR |
468 | for (i = 0; i < size; i++) { |
469 | if (cur_pid != event_list[i].pid) { | |
470 | cur_pid = event_list[i].pid; | |
471 | cmdline = get_cmdline_by_pid(cur_pid); | |
472 | if (cmdline == NULL) { | |
473 | ret = CMD_ERROR; | |
474 | goto error; | |
475 | } | |
476 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
477 | free(cmdline); | |
478 | } | |
479 | MSG("%s- %s", indent6, event_list[i].name); | |
480 | } | |
3c6a091f | 481 | |
fb14d0d8 JR |
482 | MSG(""); |
483 | } | |
3c6a091f DG |
484 | |
485 | error: | |
fb14d0d8 JR |
486 | free(event_list); |
487 | end: | |
3c6a091f | 488 | lttng_destroy_handle(handle); |
fb14d0d8 | 489 | return ret; |
3c6a091f DG |
490 | } |
491 | ||
b551a063 DG |
492 | /* |
493 | * Ask session daemon for all user space tracepoints available. | |
494 | */ | |
495 | static int list_ust_events(void) | |
496 | { | |
fb14d0d8 | 497 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
498 | struct lttng_domain domain; |
499 | struct lttng_handle *handle; | |
500 | struct lttng_event *event_list; | |
501 | pid_t cur_pid = 0; | |
ea5cbc00 | 502 | char *cmdline = NULL; |
b551a063 | 503 | |
441c16a7 MD |
504 | memset(&domain, 0, sizeof(domain)); |
505 | ||
b551a063 DG |
506 | DBG("Getting UST tracing events"); |
507 | ||
508 | domain.type = LTTNG_DOMAIN_UST; | |
509 | ||
510 | handle = lttng_create_handle(NULL, &domain); | |
511 | if (handle == NULL) { | |
fb14d0d8 JR |
512 | ret = CMD_ERROR; |
513 | goto end; | |
b551a063 DG |
514 | } |
515 | ||
516 | size = lttng_list_tracepoints(handle, &event_list); | |
517 | if (size < 0) { | |
60e835ca | 518 | ERR("Unable to list UST events: %s", lttng_strerror(size)); |
fb14d0d8 JR |
519 | ret = CMD_ERROR; |
520 | goto error; | |
b551a063 DG |
521 | } |
522 | ||
fb14d0d8 JR |
523 | if (lttng_opt_mi) { |
524 | /* Mi print */ | |
5cdb6027 | 525 | ret = mi_list_agent_ust_events(event_list, size, &domain); |
fb14d0d8 JR |
526 | } else { |
527 | /* Pretty print */ | |
528 | MSG("UST events:\n-------------"); | |
529 | ||
530 | if (size == 0) { | |
531 | MSG("None"); | |
532 | } | |
533 | ||
534 | for (i = 0; i < size; i++) { | |
535 | if (cur_pid != event_list[i].pid) { | |
536 | cur_pid = event_list[i].pid; | |
537 | cmdline = get_cmdline_by_pid(cur_pid); | |
538 | if (cmdline == NULL) { | |
539 | ret = CMD_ERROR; | |
540 | goto error; | |
541 | } | |
542 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
543 | free(cmdline); | |
544 | } | |
545 | print_events(&event_list[i]); | |
546 | } | |
b551a063 | 547 | |
fb14d0d8 | 548 | MSG(""); |
b551a063 DG |
549 | } |
550 | ||
fb14d0d8 JR |
551 | error: |
552 | free(event_list); | |
553 | end: | |
554 | lttng_destroy_handle(handle); | |
555 | return ret; | |
556 | } | |
557 | ||
558 | /* | |
559 | * Machine interface | |
560 | * List all ust event with their fields | |
561 | */ | |
562 | static int mi_list_ust_event_fields(struct lttng_event_field *fields, int count, | |
563 | struct lttng_domain *domain) | |
564 | { | |
565 | int ret, i; | |
566 | pid_t cur_pid = 0; | |
567 | char *cmdline = NULL; | |
568 | int pid_element_open = 0; | |
569 | int event_element_open = 0; | |
570 | struct lttng_event cur_event; | |
571 | ||
572 | /* Open domains element */ | |
573 | ret = mi_lttng_domains_open(writer); | |
574 | if (ret) { | |
575 | goto end; | |
576 | } | |
577 | ||
578 | /* Write domain */ | |
579 | ret = mi_lttng_domain(writer, domain, 1); | |
580 | if (ret) { | |
581 | goto end; | |
582 | } | |
583 | ||
584 | /* Open pids element */ | |
585 | ret = mi_lttng_pids_open(writer); | |
586 | if (ret) { | |
587 | goto end; | |
588 | } | |
589 | ||
590 | for (i = 0; i < count; i++) { | |
591 | if (cur_pid != fields[i].event.pid) { | |
592 | if (pid_element_open) { | |
593 | if (event_element_open) { | |
485ca16f DG |
594 | |
595 | /* Close the previous field element and event. */ | |
fb14d0d8 JR |
596 | ret = mi_lttng_close_multi_element(writer, 2); |
597 | if (ret) { | |
598 | goto end; | |
599 | } | |
600 | event_element_open = 0; | |
601 | } | |
602 | /* Close the previous events, pid element */ | |
603 | ret = mi_lttng_close_multi_element(writer, 2); | |
604 | if (ret) { | |
605 | goto end; | |
606 | } | |
607 | pid_element_open = 0; | |
608 | } | |
609 | ||
610 | cur_pid = fields[i].event.pid; | |
ea5cbc00 | 611 | cmdline = get_cmdline_by_pid(cur_pid); |
fb14d0d8 JR |
612 | if (!pid_element_open) { |
613 | /* Open and write a pid element */ | |
614 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
615 | if (ret) { | |
616 | goto error; | |
617 | } | |
618 | ||
619 | /* Open events element */ | |
620 | ret = mi_lttng_events_open(writer); | |
621 | if (ret) { | |
622 | goto error; | |
623 | } | |
624 | pid_element_open = 1; | |
625 | } | |
ea5cbc00 | 626 | free(cmdline); |
fb14d0d8 JR |
627 | /* Wipe current event since we are about to print a new PID. */ |
628 | memset(&cur_event, 0, sizeof(cur_event)); | |
b551a063 | 629 | } |
b551a063 | 630 | |
fb14d0d8 JR |
631 | if (strcmp(cur_event.name, fields[i].event.name) != 0) { |
632 | if (event_element_open) { | |
633 | /* Close the previous fields element and the previous event */ | |
634 | ret = mi_lttng_close_multi_element(writer, 2); | |
635 | if (ret) { | |
636 | goto end; | |
637 | } | |
638 | event_element_open = 0; | |
639 | } | |
640 | ||
641 | memcpy(&cur_event, &fields[i].event, | |
642 | sizeof(cur_event)); | |
b551a063 | 643 | |
fb14d0d8 JR |
644 | if (!event_element_open) { |
645 | /* Open and write the event */ | |
970d848b DG |
646 | ret = mi_lttng_event(writer, &cur_event, 1, |
647 | handle->domain.type); | |
fb14d0d8 JR |
648 | if (ret) { |
649 | goto end; | |
650 | } | |
651 | ||
652 | /* Open a fields element */ | |
653 | ret = mi_lttng_event_fields_open(writer); | |
654 | if (ret) { | |
655 | goto end; | |
656 | } | |
657 | event_element_open = 1; | |
658 | } | |
659 | } | |
b551a063 | 660 | |
fb14d0d8 JR |
661 | /* Print the event_field */ |
662 | ret = mi_lttng_event_field(writer, &fields[i]); | |
663 | if (ret) { | |
664 | goto end; | |
665 | } | |
666 | } | |
b551a063 | 667 | |
fb14d0d8 JR |
668 | /* Close pids, domain, domains */ |
669 | ret = mi_lttng_close_multi_element(writer, 3); | |
670 | end: | |
671 | return ret; | |
b551a063 | 672 | error: |
fb14d0d8 JR |
673 | free(cmdline); |
674 | return ret; | |
b551a063 | 675 | } |
f3ed775e | 676 | |
f37d259d MD |
677 | /* |
678 | * Ask session daemon for all user space tracepoint fields available. | |
679 | */ | |
680 | static int list_ust_event_fields(void) | |
681 | { | |
fb14d0d8 | 682 | int i, size, ret = CMD_SUCCESS; |
f37d259d MD |
683 | struct lttng_domain domain; |
684 | struct lttng_handle *handle; | |
685 | struct lttng_event_field *event_field_list; | |
686 | pid_t cur_pid = 0; | |
ea5cbc00 CB |
687 | char *cmdline = NULL; |
688 | ||
f37d259d MD |
689 | struct lttng_event cur_event; |
690 | ||
691 | memset(&domain, 0, sizeof(domain)); | |
692 | memset(&cur_event, 0, sizeof(cur_event)); | |
693 | ||
694 | DBG("Getting UST tracing event fields"); | |
695 | ||
696 | domain.type = LTTNG_DOMAIN_UST; | |
697 | ||
698 | handle = lttng_create_handle(NULL, &domain); | |
699 | if (handle == NULL) { | |
fb14d0d8 JR |
700 | ret = CMD_ERROR; |
701 | goto end; | |
f37d259d MD |
702 | } |
703 | ||
704 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
705 | if (size < 0) { | |
60e835ca | 706 | ERR("Unable to list UST event fields: %s", lttng_strerror(size)); |
fb14d0d8 JR |
707 | ret = CMD_ERROR; |
708 | goto end; | |
f37d259d MD |
709 | } |
710 | ||
fb14d0d8 JR |
711 | if (lttng_opt_mi) { |
712 | /* Mi print */ | |
713 | ret = mi_list_ust_event_fields(event_field_list, size, &domain); | |
714 | if (ret) { | |
715 | ret = CMD_ERROR; | |
716 | goto error; | |
717 | } | |
718 | } else { | |
719 | /* Pretty print */ | |
720 | MSG("UST events:\n-------------"); | |
f37d259d | 721 | |
fb14d0d8 JR |
722 | if (size == 0) { |
723 | MSG("None"); | |
f37d259d | 724 | } |
fb14d0d8 JR |
725 | |
726 | for (i = 0; i < size; i++) { | |
727 | if (cur_pid != event_field_list[i].event.pid) { | |
728 | cur_pid = event_field_list[i].event.pid; | |
729 | cmdline = get_cmdline_by_pid(cur_pid); | |
730 | if (cmdline == NULL) { | |
731 | ret = CMD_ERROR; | |
732 | goto error; | |
733 | } | |
734 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
735 | free(cmdline); | |
736 | /* Wipe current event since we are about to print a new PID. */ | |
737 | memset(&cur_event, 0, sizeof(cur_event)); | |
738 | } | |
739 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
740 | print_events(&event_field_list[i].event); | |
741 | memcpy(&cur_event, &event_field_list[i].event, | |
742 | sizeof(cur_event)); | |
743 | } | |
744 | print_event_field(&event_field_list[i]); | |
f37d259d | 745 | } |
f37d259d | 746 | |
fb14d0d8 JR |
747 | MSG(""); |
748 | } | |
f37d259d | 749 | |
fb14d0d8 | 750 | error: |
f37d259d | 751 | free(event_field_list); |
fb14d0d8 | 752 | end: |
f37d259d | 753 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
754 | return ret; |
755 | } | |
f37d259d | 756 | |
fb14d0d8 JR |
757 | /* |
758 | * Machine interface | |
759 | * Print a list of kernel events | |
760 | */ | |
761 | static int mi_list_kernel_events(struct lttng_event *events, int count, | |
762 | struct lttng_domain *domain) | |
763 | { | |
764 | int ret, i; | |
f37d259d | 765 | |
fb14d0d8 JR |
766 | /* Open domains element */ |
767 | ret = mi_lttng_domains_open(writer); | |
768 | if (ret) { | |
769 | goto end; | |
770 | } | |
771 | ||
772 | /* Write domain */ | |
773 | ret = mi_lttng_domain(writer, domain, 1); | |
774 | if (ret) { | |
775 | goto end; | |
776 | } | |
777 | ||
778 | /* Open events */ | |
779 | ret = mi_lttng_events_open(writer); | |
780 | if (ret) { | |
781 | goto end; | |
782 | } | |
783 | ||
784 | for (i = 0; i < count; i++) { | |
970d848b | 785 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
fb14d0d8 JR |
786 | if (ret) { |
787 | goto end; | |
788 | } | |
789 | } | |
790 | ||
791 | /* close events, domain and domains */ | |
792 | ret = mi_lttng_close_multi_element(writer, 3); | |
793 | if (ret) { | |
794 | goto end; | |
795 | } | |
796 | ||
797 | end: | |
798 | return ret; | |
f37d259d MD |
799 | } |
800 | ||
f3ed775e | 801 | /* |
fb14d0d8 | 802 | * Ask for all trace events in the kernel |
f3ed775e | 803 | */ |
9f19cc17 | 804 | static int list_kernel_events(void) |
f3ed775e | 805 | { |
fb14d0d8 | 806 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
807 | struct lttng_domain domain; |
808 | struct lttng_handle *handle; | |
9f19cc17 | 809 | struct lttng_event *event_list; |
f3ed775e | 810 | |
441c16a7 MD |
811 | memset(&domain, 0, sizeof(domain)); |
812 | ||
b551a063 DG |
813 | DBG("Getting kernel tracing events"); |
814 | ||
815 | domain.type = LTTNG_DOMAIN_KERNEL; | |
816 | ||
817 | handle = lttng_create_handle(NULL, &domain); | |
818 | if (handle == NULL) { | |
fb14d0d8 | 819 | ret = CMD_ERROR; |
b551a063 DG |
820 | goto error; |
821 | } | |
f3ed775e | 822 | |
cd80958d | 823 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 | 824 | if (size < 0) { |
60e835ca | 825 | ERR("Unable to list kernel events: %s", lttng_strerror(size)); |
ef021732 | 826 | lttng_destroy_handle(handle); |
fb14d0d8 | 827 | return CMD_ERROR; |
f3ed775e DG |
828 | } |
829 | ||
fb14d0d8 JR |
830 | if (lttng_opt_mi) { |
831 | /* Mi print */ | |
832 | ret = mi_list_kernel_events(event_list, size, &domain); | |
833 | if (ret) { | |
834 | ret = CMD_ERROR; | |
835 | goto end; | |
836 | } | |
837 | } else { | |
838 | MSG("Kernel events:\n-------------"); | |
f3ed775e | 839 | |
fb14d0d8 JR |
840 | for (i = 0; i < size; i++) { |
841 | print_events(&event_list[i]); | |
842 | } | |
f3ed775e | 843 | |
fb14d0d8 JR |
844 | MSG(""); |
845 | } | |
b551a063 | 846 | |
fb14d0d8 | 847 | end: |
f3ed775e DG |
848 | free(event_list); |
849 | ||
ef021732 | 850 | lttng_destroy_handle(handle); |
fb14d0d8 | 851 | return ret; |
b551a063 DG |
852 | |
853 | error: | |
ef021732 | 854 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
855 | return ret; |
856 | } | |
857 | ||
834978fd DG |
858 | /* |
859 | * Machine interface | |
860 | * Print a list of system calls. | |
861 | */ | |
862 | static int mi_list_syscalls(struct lttng_event *events, int count) | |
863 | { | |
864 | int ret, i; | |
865 | ||
866 | /* Open events */ | |
867 | ret = mi_lttng_events_open(writer); | |
868 | if (ret) { | |
869 | goto end; | |
870 | } | |
871 | ||
872 | for (i = 0; i < count; i++) { | |
970d848b | 873 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
834978fd DG |
874 | if (ret) { |
875 | goto end; | |
876 | } | |
877 | } | |
878 | ||
879 | /* Close events. */ | |
880 | ret = mi_lttng_writer_close_element(writer); | |
881 | if (ret) { | |
882 | goto end; | |
883 | } | |
884 | ||
885 | end: | |
886 | return ret; | |
887 | } | |
888 | ||
889 | /* | |
890 | * Ask for kernel system calls. | |
891 | */ | |
892 | static int list_syscalls(void) | |
893 | { | |
894 | int i, size, ret = CMD_SUCCESS; | |
895 | struct lttng_event *event_list; | |
896 | ||
897 | DBG("Getting kernel system call events"); | |
898 | ||
899 | size = lttng_list_syscalls(&event_list); | |
900 | if (size < 0) { | |
901 | ERR("Unable to list system calls: %s", lttng_strerror(size)); | |
902 | ret = CMD_ERROR; | |
903 | goto error; | |
904 | } | |
905 | ||
906 | if (lttng_opt_mi) { | |
907 | /* Mi print */ | |
908 | ret = mi_list_syscalls(event_list, size); | |
909 | if (ret) { | |
910 | ret = CMD_ERROR; | |
911 | goto end; | |
912 | } | |
913 | } else { | |
914 | MSG("System calls:\n-------------"); | |
915 | ||
916 | for (i = 0; i < size; i++) { | |
917 | print_events(&event_list[i]); | |
918 | } | |
919 | ||
920 | MSG(""); | |
921 | } | |
922 | ||
923 | end: | |
924 | free(event_list); | |
925 | return ret; | |
926 | ||
927 | error: | |
928 | return ret; | |
929 | } | |
930 | ||
fb14d0d8 JR |
931 | /* |
932 | * Machine Interface | |
5cdb6027 | 933 | * Print a list of agent events |
fb14d0d8 | 934 | */ |
5cdb6027 | 935 | static int mi_list_session_agent_events(struct lttng_event *events, int count) |
fb14d0d8 JR |
936 | { |
937 | int ret, i; | |
938 | ||
939 | /* Open events element */ | |
940 | ret = mi_lttng_events_open(writer); | |
941 | if (ret) { | |
942 | goto end; | |
943 | } | |
944 | ||
945 | for (i = 0; i < count; i++) { | |
970d848b | 946 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
fb14d0d8 JR |
947 | if (ret) { |
948 | goto end; | |
949 | } | |
950 | } | |
951 | ||
952 | /* Close events element */ | |
953 | ret = mi_lttng_writer_close_element(writer); | |
954 | ||
955 | end: | |
956 | return ret; | |
f3ed775e DG |
957 | } |
958 | ||
3c6a091f | 959 | /* |
5cdb6027 | 960 | * List agent events for a specific session using the handle. |
3c6a091f DG |
961 | * |
962 | * Return CMD_SUCCESS on success else a negative value. | |
963 | */ | |
5cdb6027 | 964 | static int list_session_agent_events(void) |
3c6a091f | 965 | { |
fb14d0d8 | 966 | int ret = CMD_SUCCESS, count, i; |
3c6a091f DG |
967 | struct lttng_event *events = NULL; |
968 | ||
969 | count = lttng_list_events(handle, "", &events); | |
970 | if (count < 0) { | |
fb14d0d8 JR |
971 | ret = CMD_ERROR; |
972 | ERR("%s", lttng_strerror(count)); | |
3c6a091f DG |
973 | goto error; |
974 | } | |
975 | ||
fb14d0d8 JR |
976 | if (lttng_opt_mi) { |
977 | /* Mi print */ | |
5cdb6027 | 978 | ret = mi_list_session_agent_events(events, count); |
fb14d0d8 JR |
979 | if (ret) { |
980 | ret = CMD_ERROR; | |
981 | goto end; | |
982 | } | |
983 | } else { | |
984 | /* Pretty print */ | |
985 | MSG("Events (Logger name):\n---------------------"); | |
986 | if (count == 0) { | |
987 | MSG("%sNone\n", indent6); | |
988 | goto end; | |
989 | } | |
990 | ||
991 | for (i = 0; i < count; i++) { | |
992 | MSG("%s- %s%s (loglevel%s %s)", indent4, events[i].name, | |
993 | enabled_string(events[i].enabled), | |
994 | logleveltype_string(events[i].loglevel_type), | |
970d848b DG |
995 | mi_lttng_loglevel_string(events[i].loglevel, |
996 | handle->domain.type)); | |
fb14d0d8 JR |
997 | } |
998 | ||
999 | MSG(""); | |
1000 | } | |
1001 | ||
1002 | end: | |
1003 | free(events); | |
1004 | error: | |
1005 | return ret; | |
1006 | } | |
1007 | ||
1008 | /* | |
1009 | * Machine interface | |
1010 | * print a list of event | |
1011 | */ | |
1012 | static int mi_list_events(struct lttng_event *events, int count) | |
1013 | { | |
1014 | int ret, i; | |
1015 | ||
1016 | /* Open events element */ | |
1017 | ret = mi_lttng_events_open(writer); | |
1018 | if (ret) { | |
3c6a091f DG |
1019 | goto end; |
1020 | } | |
1021 | ||
1022 | for (i = 0; i < count; i++) { | |
970d848b | 1023 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
fb14d0d8 JR |
1024 | if (ret) { |
1025 | goto end; | |
1026 | } | |
3c6a091f DG |
1027 | } |
1028 | ||
fb14d0d8 JR |
1029 | /* Close events element */ |
1030 | ret = mi_lttng_writer_close_element(writer); | |
3c6a091f DG |
1031 | |
1032 | end: | |
3c6a091f DG |
1033 | return ret; |
1034 | } | |
1035 | ||
f3ed775e | 1036 | /* |
9f19cc17 | 1037 | * List events of channel of session and domain. |
f3ed775e | 1038 | */ |
cd80958d | 1039 | static int list_events(const char *channel_name) |
f3ed775e | 1040 | { |
fb14d0d8 | 1041 | int ret = CMD_SUCCESS, count, i; |
9f19cc17 | 1042 | struct lttng_event *events = NULL; |
f3ed775e | 1043 | |
cd80958d | 1044 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e | 1045 | if (count < 0) { |
fb14d0d8 JR |
1046 | ret = CMD_ERROR; |
1047 | ERR("%s", lttng_strerror(count)); | |
f3ed775e DG |
1048 | goto error; |
1049 | } | |
1050 | ||
fb14d0d8 JR |
1051 | if (lttng_opt_mi) { |
1052 | /* Mi print */ | |
1053 | ret = mi_list_events(events, count); | |
1054 | if (ret) { | |
1055 | ret = CMD_ERROR; | |
1056 | goto end; | |
1057 | } | |
1058 | } else { | |
1059 | /* Pretty print */ | |
1060 | MSG("\n%sEvents:", indent4); | |
1061 | if (count == 0) { | |
1062 | MSG("%sNone\n", indent6); | |
1063 | goto end; | |
1064 | } | |
f3ed775e | 1065 | |
fb14d0d8 JR |
1066 | for (i = 0; i < count; i++) { |
1067 | print_events(&events[i]); | |
1068 | } | |
f3ed775e | 1069 | |
fb14d0d8 JR |
1070 | MSG(""); |
1071 | } | |
9f19cc17 | 1072 | end: |
0e428499 | 1073 | free(events); |
f3ed775e DG |
1074 | error: |
1075 | return ret; | |
1076 | } | |
1077 | ||
1078 | /* | |
9f19cc17 DG |
1079 | * Pretty print channel |
1080 | */ | |
1081 | static void print_channel(struct lttng_channel *channel) | |
1082 | { | |
464dd62d | 1083 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
1084 | |
1085 | MSG("%sAttributes:", indent4); | |
a5bbe8f6 DG |
1086 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); |
1087 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
9f19cc17 | 1088 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); |
a5bbe8f6 DG |
1089 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); |
1090 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
2f785fe7 DG |
1091 | MSG("%strace file count: %" PRIu64, indent6, channel->attr.tracefile_count); |
1092 | MSG("%strace file size (bytes): %" PRIu64, indent6, channel->attr.tracefile_size); | |
9f19cc17 DG |
1093 | switch (channel->attr.output) { |
1094 | case LTTNG_EVENT_SPLICE: | |
1095 | MSG("%soutput: splice()", indent6); | |
1096 | break; | |
1097 | case LTTNG_EVENT_MMAP: | |
1098 | MSG("%soutput: mmap()", indent6); | |
1099 | break; | |
1100 | } | |
1101 | } | |
1102 | ||
fb14d0d8 JR |
1103 | /* |
1104 | * Machine interface | |
1105 | * Print a list of channel | |
1106 | * | |
1107 | */ | |
1108 | static int mi_list_channels(struct lttng_channel *channels, int count, | |
1109 | const char *channel_name) | |
1110 | { | |
1111 | int i, ret; | |
1112 | unsigned int chan_found = 0; | |
1113 | ||
1114 | /* Open channels element */ | |
1115 | ret = mi_lttng_channels_open(writer); | |
1116 | if (ret) { | |
1117 | goto error; | |
1118 | } | |
1119 | ||
1120 | for (i = 0; i < count; i++) { | |
1121 | if (channel_name != NULL) { | |
1122 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1123 | chan_found = 1; | |
1124 | } else { | |
1125 | continue; | |
1126 | } | |
1127 | } | |
1128 | ||
1129 | /* Write channel element and leave it open */ | |
1130 | ret = mi_lttng_channel(writer, &channels[i], 1); | |
1131 | if (ret) { | |
1132 | goto error; | |
1133 | } | |
1134 | ||
1135 | /* Listing events per channel */ | |
1136 | ret = list_events(channels[i].name); | |
1137 | if (ret) { | |
1138 | goto error; | |
1139 | } | |
1140 | ||
1141 | /* Closing the channel element we opened earlier */ | |
1142 | ret = mi_lttng_writer_close_element(writer); | |
1143 | if (ret) { | |
1144 | goto error; | |
1145 | } | |
1146 | ||
1147 | if (chan_found) { | |
1148 | break; | |
1149 | } | |
1150 | } | |
1151 | ||
1152 | /* Close channels element */ | |
1153 | ret = mi_lttng_writer_close_element(writer); | |
1154 | if (ret) { | |
1155 | goto error; | |
1156 | } | |
1157 | ||
1158 | error: | |
1159 | return ret; | |
1160 | } | |
1161 | ||
9f19cc17 DG |
1162 | /* |
1163 | * List channel(s) of session and domain. | |
f3ed775e | 1164 | * |
9f19cc17 | 1165 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 1166 | */ |
cd80958d | 1167 | static int list_channels(const char *channel_name) |
f3ed775e | 1168 | { |
9f19cc17 DG |
1169 | int count, i, ret = CMD_SUCCESS; |
1170 | unsigned int chan_found = 0; | |
1171 | struct lttng_channel *channels = NULL; | |
f3ed775e | 1172 | |
3e25cb20 | 1173 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 1174 | |
cd80958d | 1175 | count = lttng_list_channels(handle, &channels); |
f3ed775e | 1176 | if (count < 0) { |
c7d620a2 DG |
1177 | switch (-count) { |
1178 | case LTTNG_ERR_KERN_CHAN_NOT_FOUND: | |
fb14d0d8 JR |
1179 | if (lttng_opt_mi) { |
1180 | /* When printing mi this is not an error | |
1181 | * but an empty channels element */ | |
1182 | count = 0; | |
1183 | } else { | |
1184 | ret = CMD_SUCCESS; | |
1185 | WARN("No kernel channel"); | |
1186 | goto error_channels; | |
1187 | } | |
c7d620a2 DG |
1188 | break; |
1189 | default: | |
1190 | /* We had a real error */ | |
fb14d0d8 JR |
1191 | ret = CMD_ERROR; |
1192 | ERR("%s", lttng_strerror(count)); | |
1193 | goto error_channels; | |
60e835ca | 1194 | break; |
c7d620a2 | 1195 | } |
f3ed775e DG |
1196 | } |
1197 | ||
fb14d0d8 JR |
1198 | if (lttng_opt_mi) { |
1199 | /* Mi print */ | |
1200 | ret = mi_list_channels(channels, count, channel_name); | |
1201 | if (ret) { | |
1202 | ret = CMD_ERROR; | |
1203 | goto error; | |
1204 | } | |
1205 | } else { | |
1206 | /* Pretty print */ | |
9247b8d0 | 1207 | if (count) { |
fb14d0d8 JR |
1208 | MSG("Channels:\n-------------"); |
1209 | } | |
9f19cc17 | 1210 | |
fb14d0d8 JR |
1211 | for (i = 0; i < count; i++) { |
1212 | if (channel_name != NULL) { | |
1213 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1214 | chan_found = 1; | |
1215 | } else { | |
1216 | continue; | |
1217 | } | |
1218 | } | |
1219 | print_channel(&channels[i]); | |
1220 | ||
1221 | /* Listing events per channel */ | |
1222 | ret = list_events(channels[i].name); | |
1223 | if (ret) { | |
1224 | goto error; | |
1225 | } | |
1226 | ||
1227 | if (chan_found) { | |
1228 | break; | |
9f19cc17 DG |
1229 | } |
1230 | } | |
9f19cc17 | 1231 | |
fb14d0d8 JR |
1232 | if (!chan_found && channel_name != NULL) { |
1233 | ret = CMD_ERROR; | |
1234 | ERR("Channel %s not found", channel_name); | |
1235 | goto error; | |
9f19cc17 | 1236 | } |
fb14d0d8 JR |
1237 | } |
1238 | error: | |
1239 | free(channels); | |
9f19cc17 | 1240 | |
fb14d0d8 JR |
1241 | error_channels: |
1242 | return ret; | |
1243 | } | |
1244 | ||
1245 | /* | |
1246 | * Machine interface | |
1247 | * Find the session with session_name as name | |
1248 | * and print his informations. | |
1249 | */ | |
1250 | static int mi_list_session(const char *session_name, | |
1251 | struct lttng_session *sessions, int count) | |
1252 | { | |
1253 | int ret, i; | |
1254 | unsigned int session_found = 0; | |
1255 | ||
1256 | if (session_name == NULL) { | |
1257 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1258 | goto end; | |
1259 | } | |
1260 | ||
1261 | for (i = 0; i < count; i++) { | |
1262 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1263 | /* We need to leave it open to append other informations | |
1264 | * like domain, channel, events etc.*/ | |
1265 | session_found = 1; | |
1266 | ret = mi_lttng_session(writer, &sessions[i], 1); | |
1267 | if (ret) { | |
1268 | goto end; | |
1269 | } | |
9f19cc17 | 1270 | break; |
f3ed775e | 1271 | } |
f3ed775e DG |
1272 | } |
1273 | ||
fb14d0d8 JR |
1274 | if (!session_found) { |
1275 | ERR("Session '%s' not found", session_name); | |
1276 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1277 | goto end; | |
9f19cc17 | 1278 | } |
f3ed775e | 1279 | |
fb14d0d8 JR |
1280 | end: |
1281 | return ret; | |
1282 | } | |
f3ed775e | 1283 | |
fb14d0d8 JR |
1284 | /* |
1285 | * Machine interface | |
1286 | * List all availables session | |
1287 | */ | |
1288 | static int mi_list_sessions(struct lttng_session *sessions, int count) | |
1289 | { | |
1290 | int ret, i; | |
ae856491 | 1291 | |
fb14d0d8 JR |
1292 | /* Opening sessions element */ |
1293 | ret = mi_lttng_sessions_open(writer); | |
1294 | if (ret) { | |
1295 | goto end; | |
1296 | } | |
1297 | ||
1298 | /* Listing sessions */ | |
1299 | for (i = 0; i < count; i++) { | |
1300 | ret = mi_lttng_session(writer, &sessions[i], 0); | |
1301 | if (ret) { | |
1302 | goto end; | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | /* Closing sessions element */ | |
1307 | ret = mi_lttng_writer_close_element(writer); | |
1308 | if (ret) { | |
1309 | goto end; | |
1310 | } | |
1311 | ||
1312 | end: | |
f3ed775e DG |
1313 | return ret; |
1314 | } | |
1315 | ||
1316 | /* | |
9f19cc17 | 1317 | * List available tracing session. List only basic information. |
f3ed775e | 1318 | * |
9f19cc17 | 1319 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 1320 | */ |
9f19cc17 | 1321 | static int list_sessions(const char *session_name) |
f3ed775e | 1322 | { |
fb14d0d8 JR |
1323 | int ret = CMD_SUCCESS; |
1324 | int count, i; | |
9f19cc17 DG |
1325 | unsigned int session_found = 0; |
1326 | struct lttng_session *sessions; | |
1327 | ||
1328 | count = lttng_list_sessions(&sessions); | |
1329 | DBG("Session count %d", count); | |
1330 | if (count < 0) { | |
fb14d0d8 JR |
1331 | ret = CMD_ERROR; |
1332 | ERR("%s", lttng_strerror(count)); | |
d32fb093 | 1333 | goto end; |
9f19cc17 DG |
1334 | } |
1335 | ||
fb14d0d8 JR |
1336 | if (lttng_opt_mi) { |
1337 | /* Mi */ | |
1338 | if (session_name == NULL) { | |
1339 | /* List all session */ | |
1340 | ret = mi_list_sessions(sessions, count); | |
1341 | } else { | |
1342 | /* Note : this return an open session element */ | |
1343 | ret = mi_list_session(session_name, sessions, count); | |
1344 | } | |
1345 | if (ret) { | |
1346 | ret = CMD_ERROR; | |
1347 | goto error; | |
1348 | } | |
1349 | } else { | |
1350 | /* Pretty print */ | |
1351 | if (count == 0) { | |
1352 | MSG("Currently no available tracing session"); | |
fb14d0d8 JR |
1353 | goto end; |
1354 | } | |
9f19cc17 | 1355 | |
fb14d0d8 JR |
1356 | if (session_name == NULL) { |
1357 | MSG("Available tracing sessions:"); | |
1358 | } | |
1359 | ||
1360 | ||
1361 | for (i = 0; i < count; i++) { | |
1362 | if (session_name != NULL) { | |
1363 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1364 | session_found = 1; | |
1365 | MSG("Tracing session %s: [%s%s]", session_name, | |
1366 | active_string(sessions[i].enabled), | |
1367 | snapshot_string(sessions[i].snapshot_mode)); | |
1368 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); | |
1369 | break; | |
1370 | } | |
1371 | } else { | |
1372 | MSG(" %d) %s (%s) [%s%s]", i + 1, | |
1373 | sessions[i].name, sessions[i].path, | |
2cbf8fed DG |
1374 | active_string(sessions[i].enabled), |
1375 | snapshot_string(sessions[i].snapshot_mode)); | |
2f785fe7 DG |
1376 | MSG("%sTrace path: %s", indent4, sessions[i].path); |
1377 | MSG("%sLive timer interval (usec): %u\n", indent4, | |
1378 | sessions[i].live_timer_interval); | |
9f19cc17 | 1379 | } |
fb14d0d8 JR |
1380 | } |
1381 | ||
1382 | if (!session_found && session_name != NULL) { | |
1383 | ERR("Session '%s' not found", session_name); | |
1384 | ret = CMD_ERROR; | |
1385 | goto error; | |
1386 | } | |
1387 | ||
1388 | if (session_name == NULL) { | |
1389 | MSG("\nUse lttng list <session_name> for more details"); | |
9f19cc17 DG |
1390 | } |
1391 | } | |
1392 | ||
fb14d0d8 | 1393 | error: |
9f19cc17 | 1394 | free(sessions); |
fb14d0d8 JR |
1395 | end: |
1396 | return ret; | |
1397 | } | |
9f19cc17 | 1398 | |
fb14d0d8 JR |
1399 | |
1400 | /* | |
1401 | * Machine Interface | |
1402 | * list available domain(s) for a session. | |
1403 | */ | |
1404 | static int mi_list_domains(struct lttng_domain *domains, int count) | |
1405 | { | |
1406 | int i, ret; | |
1407 | /* Open domains element */ | |
1408 | ret = mi_lttng_domains_open(writer); | |
1409 | if (ret) { | |
1410 | goto end; | |
9f19cc17 DG |
1411 | } |
1412 | ||
fb14d0d8 JR |
1413 | for (i = 0; i < count; i++) { |
1414 | ret = mi_lttng_domain(writer, &domains[i] , 0); | |
1415 | if (ret) { | |
1416 | goto end; | |
1417 | } | |
9f19cc17 | 1418 | } |
f3ed775e | 1419 | |
fb14d0d8 JR |
1420 | /* Closing domains element */ |
1421 | ret = mi_lttng_writer_close_element(writer); | |
1422 | if (ret) { | |
1423 | goto end; | |
1424 | } | |
d32fb093 | 1425 | end: |
f3ed775e DG |
1426 | return ret; |
1427 | } | |
f3ed775e DG |
1428 | |
1429 | /* | |
9f19cc17 | 1430 | * List available domain(s) for a session. |
f3ed775e | 1431 | */ |
330be774 | 1432 | static int list_domains(const char *session_name) |
f3ed775e | 1433 | { |
9f19cc17 DG |
1434 | int i, count, ret = CMD_SUCCESS; |
1435 | struct lttng_domain *domains = NULL; | |
1436 | ||
9f19cc17 | 1437 | |
330be774 | 1438 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 | 1439 | if (count < 0) { |
fb14d0d8 JR |
1440 | ret = CMD_ERROR; |
1441 | ERR("%s", lttng_strerror(count)); | |
9f19cc17 DG |
1442 | goto end; |
1443 | } | |
1444 | ||
fb14d0d8 JR |
1445 | if (lttng_opt_mi) { |
1446 | /* Mi output */ | |
1447 | ret = mi_list_domains(domains, count); | |
1448 | if (ret) { | |
1449 | ret = CMD_ERROR; | |
1450 | goto error; | |
1451 | } | |
1452 | } else { | |
1453 | /* Pretty print */ | |
1454 | MSG("Domains:\n-------------"); | |
1455 | if (count == 0) { | |
1456 | MSG(" None"); | |
1457 | goto end; | |
1458 | } | |
1459 | ||
1460 | for (i = 0; i < count; i++) { | |
1461 | switch (domains[i].type) { | |
1462 | case LTTNG_DOMAIN_KERNEL: | |
1463 | MSG(" - Kernel"); | |
1464 | break; | |
1465 | case LTTNG_DOMAIN_UST: | |
1466 | MSG(" - UST global"); | |
1467 | break; | |
1468 | case LTTNG_DOMAIN_JUL: | |
1469 | MSG(" - JUL (Java Util Logging)"); | |
1470 | break; | |
5cdb6027 DG |
1471 | case LTTNG_DOMAIN_LOG4J: |
1472 | MSG(" - LOG4j (Logging for Java)"); | |
1473 | break; | |
fb14d0d8 JR |
1474 | default: |
1475 | break; | |
1476 | } | |
9f19cc17 DG |
1477 | } |
1478 | } | |
1479 | ||
fb14d0d8 | 1480 | error: |
9f19cc17 DG |
1481 | free(domains); |
1482 | ||
fb14d0d8 | 1483 | end: |
9f19cc17 | 1484 | return ret; |
f3ed775e | 1485 | } |
f3ed775e DG |
1486 | |
1487 | /* | |
9f19cc17 | 1488 | * The 'list <options>' first level command |
f3ed775e DG |
1489 | */ |
1490 | int cmd_list(int argc, const char **argv) | |
1491 | { | |
c617c0c6 | 1492 | int opt, ret = CMD_SUCCESS; |
9f19cc17 | 1493 | const char *session_name; |
f3ed775e | 1494 | static poptContext pc; |
9f19cc17 DG |
1495 | struct lttng_domain domain; |
1496 | struct lttng_domain *domains = NULL; | |
f3ed775e | 1497 | |
441c16a7 MD |
1498 | memset(&domain, 0, sizeof(domain)); |
1499 | ||
9f19cc17 | 1500 | if (argc < 1) { |
f3ed775e | 1501 | usage(stderr); |
ca1c3607 | 1502 | ret = CMD_ERROR; |
f3ed775e DG |
1503 | goto end; |
1504 | } | |
1505 | ||
1506 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1507 | poptReadDefaultConfig(pc, 0); | |
1508 | ||
1509 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1510 | switch (opt) { | |
1511 | case OPT_HELP: | |
ca1c3607 | 1512 | usage(stdout); |
f3ed775e | 1513 | goto end; |
eeac7d46 MD |
1514 | case OPT_USERSPACE: |
1515 | opt_userspace = 1; | |
eeac7d46 | 1516 | break; |
679b4943 SM |
1517 | case OPT_LIST_OPTIONS: |
1518 | list_cmd_options(stdout, long_options); | |
679b4943 | 1519 | goto end; |
f3ed775e DG |
1520 | default: |
1521 | usage(stderr); | |
1522 | ret = CMD_UNDEFINED; | |
1523 | goto end; | |
1524 | } | |
1525 | } | |
1526 | ||
fb14d0d8 JR |
1527 | /* Mi check */ |
1528 | if (lttng_opt_mi) { | |
1529 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1530 | if (!writer) { | |
1531 | ret = CMD_ERROR; | |
1532 | goto end; | |
1533 | } | |
1534 | ||
1535 | /* Open command element */ | |
1536 | ret = mi_lttng_writer_command_open(writer, | |
1537 | mi_lttng_element_command_list); | |
1538 | if (ret) { | |
1539 | ret = CMD_ERROR; | |
1540 | goto end; | |
1541 | } | |
1542 | ||
1543 | /* Open output element */ | |
1544 | ret = mi_lttng_writer_open_element(writer, | |
1545 | mi_lttng_element_command_output); | |
1546 | if (ret) { | |
1547 | ret = CMD_ERROR; | |
1548 | goto end; | |
1549 | } | |
1550 | } | |
1551 | ||
9f19cc17 DG |
1552 | /* Get session name (trailing argument) */ |
1553 | session_name = poptGetArg(pc); | |
b551a063 | 1554 | DBG2("Session name: %s", session_name); |
9f19cc17 | 1555 | |
cd80958d DG |
1556 | if (opt_kernel) { |
1557 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
1558 | } else if (opt_userspace) { |
1559 | DBG2("Listing userspace global domain"); | |
1560 | domain.type = LTTNG_DOMAIN_UST; | |
3c6a091f DG |
1561 | } else if (opt_jul) { |
1562 | DBG2("Listing JUL domain"); | |
1563 | domain.type = LTTNG_DOMAIN_JUL; | |
edf60534 | 1564 | } else if (opt_log4j) { |
5cdb6027 | 1565 | domain.type = LTTNG_DOMAIN_LOG4J; |
cd80958d DG |
1566 | } |
1567 | ||
834978fd DG |
1568 | if (!opt_kernel && opt_syscall) { |
1569 | WARN("--syscall will only work with the Kernel domain (-k)"); | |
1570 | ret = CMD_ERROR; | |
1571 | goto end; | |
1572 | } | |
1573 | ||
5cdb6027 | 1574 | if (opt_kernel || opt_userspace || opt_jul || opt_log4j) { |
aa5de748 MD |
1575 | handle = lttng_create_handle(session_name, &domain); |
1576 | if (handle == NULL) { | |
1577 | ret = CMD_FATAL; | |
1578 | goto end; | |
1579 | } | |
cd80958d DG |
1580 | } |
1581 | ||
9f19cc17 | 1582 | if (session_name == NULL) { |
5cdb6027 | 1583 | if (!opt_kernel && !opt_userspace && !opt_jul && !opt_log4j) { |
b551a063 | 1584 | ret = list_sessions(NULL); |
fb14d0d8 | 1585 | if (ret) { |
b551a063 DG |
1586 | goto end; |
1587 | } | |
1588 | } | |
9f19cc17 | 1589 | if (opt_kernel) { |
834978fd DG |
1590 | if (opt_syscall) { |
1591 | ret = list_syscalls(); | |
1592 | if (ret) { | |
1593 | goto end; | |
1594 | } | |
1595 | } else { | |
1596 | ret = list_kernel_events(); | |
1597 | if (ret) { | |
1598 | goto end; | |
1599 | } | |
9f19cc17 | 1600 | } |
b551a063 DG |
1601 | } |
1602 | if (opt_userspace) { | |
f37d259d MD |
1603 | if (opt_fields) { |
1604 | ret = list_ust_event_fields(); | |
1605 | } else { | |
1606 | ret = list_ust_events(); | |
1607 | } | |
fb14d0d8 | 1608 | if (ret) { |
9f19cc17 DG |
1609 | goto end; |
1610 | } | |
1611 | } | |
5cdb6027 DG |
1612 | if (opt_jul || opt_log4j) { |
1613 | ret = list_agent_events(); | |
fb14d0d8 | 1614 | if (ret) { |
3c6a091f DG |
1615 | goto end; |
1616 | } | |
1617 | } | |
9f19cc17 DG |
1618 | } else { |
1619 | /* List session attributes */ | |
fb14d0d8 JR |
1620 | if (lttng_opt_mi) { |
1621 | /* Open element sessions | |
1622 | * Present for xml consistency */ | |
1623 | ret = mi_lttng_sessions_open(writer); | |
1624 | if (ret) { | |
1625 | goto end; | |
1626 | } | |
1627 | } | |
1628 | /* MI: the ouptut of list_sessions is an unclosed session element */ | |
9f19cc17 | 1629 | ret = list_sessions(session_name); |
fb14d0d8 | 1630 | if (ret) { |
9f19cc17 DG |
1631 | goto end; |
1632 | } | |
1633 | ||
1634 | /* Domain listing */ | |
1635 | if (opt_domain) { | |
330be774 | 1636 | ret = list_domains(session_name); |
9f19cc17 DG |
1637 | goto end; |
1638 | } | |
1639 | ||
fb14d0d8 | 1640 | /* Channel listing */ |
1c3de747 | 1641 | if (opt_kernel || opt_userspace) { |
fb14d0d8 JR |
1642 | if (lttng_opt_mi) { |
1643 | /* Add of domains and domain element for xml | |
1644 | * consistency and validation | |
1645 | */ | |
1646 | ret = mi_lttng_domains_open(writer); | |
1647 | if (ret) { | |
1648 | goto end; | |
1649 | } | |
1650 | ||
1651 | /* Open domain and leave it open for | |
1652 | * nested channels printing */ | |
1653 | ret = mi_lttng_domain(writer, &domain, 1); | |
1654 | if (ret) { | |
1655 | goto end; | |
1656 | } | |
1657 | ||
1658 | } | |
1659 | ||
cd80958d | 1660 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1661 | if (ret) { |
1662 | goto end; | |
1663 | } | |
1664 | ||
1665 | if (lttng_opt_mi) { | |
1666 | /* Close domain and domain element */ | |
1667 | ret = mi_lttng_close_multi_element(writer, 2); | |
1668 | } | |
1669 | if (ret) { | |
9f19cc17 DG |
1670 | goto end; |
1671 | } | |
fb14d0d8 JR |
1672 | |
1673 | ||
9f19cc17 | 1674 | } else { |
c617c0c6 MD |
1675 | int i, nb_domain; |
1676 | ||
9f19cc17 | 1677 | /* We want all domain(s) */ |
330be774 | 1678 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 1679 | if (nb_domain < 0) { |
fb14d0d8 JR |
1680 | ret = CMD_ERROR; |
1681 | ERR("%s", lttng_strerror(nb_domain)); | |
9f19cc17 DG |
1682 | goto end; |
1683 | } | |
1684 | ||
fb14d0d8 JR |
1685 | if (lttng_opt_mi) { |
1686 | ret = mi_lttng_domains_open(writer); | |
1687 | if (ret) { | |
1688 | ret = CMD_ERROR; | |
1689 | goto end; | |
1690 | } | |
1691 | } | |
1692 | ||
b551a063 | 1693 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
1694 | switch (domains[i].type) { |
1695 | case LTTNG_DOMAIN_KERNEL: | |
1696 | MSG("=== Domain: Kernel ===\n"); | |
1697 | break; | |
b551a063 DG |
1698 | case LTTNG_DOMAIN_UST: |
1699 | MSG("=== Domain: UST global ===\n"); | |
88c5f0d8 DG |
1700 | MSG("Buffer type: %s\n", |
1701 | domains[i].buf_type == | |
1702 | LTTNG_BUFFER_PER_PID ? "per PID" : "per UID"); | |
b551a063 | 1703 | break; |
3c6a091f DG |
1704 | case LTTNG_DOMAIN_JUL: |
1705 | MSG("=== Domain: JUL (Java Util Logging) ===\n"); | |
1706 | break; | |
5cdb6027 DG |
1707 | case LTTNG_DOMAIN_LOG4J: |
1708 | MSG("=== Domain: LOG4j (Logging for Java) ===\n"); | |
1709 | break; | |
9f19cc17 DG |
1710 | default: |
1711 | MSG("=== Domain: Unimplemented ===\n"); | |
1712 | break; | |
1713 | } | |
1714 | ||
fb14d0d8 JR |
1715 | if (lttng_opt_mi) { |
1716 | ret = mi_lttng_domain(writer, &domains[i], 1); | |
1717 | if (ret) { | |
1718 | ret = CMD_ERROR; | |
1719 | goto end; | |
1720 | } | |
1721 | } | |
1722 | ||
cd80958d | 1723 | /* Clean handle before creating a new one */ |
aa5de748 MD |
1724 | if (handle) { |
1725 | lttng_destroy_handle(handle); | |
1726 | } | |
cd80958d DG |
1727 | |
1728 | handle = lttng_create_handle(session_name, &domains[i]); | |
1729 | if (handle == NULL) { | |
ca1c3607 | 1730 | ret = CMD_FATAL; |
cd80958d DG |
1731 | goto end; |
1732 | } | |
1733 | ||
5cdb6027 DG |
1734 | if (domains[i].type == LTTNG_DOMAIN_JUL || |
1735 | domains[i].type == LTTNG_DOMAIN_LOG4J) { | |
1736 | ret = list_session_agent_events(); | |
fb14d0d8 | 1737 | if (ret) { |
3c6a091f DG |
1738 | goto end; |
1739 | } | |
1740 | continue; | |
1741 | } | |
1742 | ||
cd80958d | 1743 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1744 | if (ret) { |
1745 | goto end; | |
1746 | } | |
1747 | ||
1748 | if (lttng_opt_mi) { | |
1749 | /* Close domain element */ | |
1750 | ret = mi_lttng_writer_close_element(writer); | |
1751 | if (ret) { | |
1752 | ret = CMD_ERROR; | |
1753 | goto end; | |
1754 | } | |
1755 | } | |
1756 | ||
1757 | } | |
1758 | if (lttng_opt_mi) { | |
1759 | /* Close the domains, session and sessions element */ | |
1760 | ret = mi_lttng_close_multi_element(writer, 3); | |
1761 | if (ret) { | |
1762 | ret = CMD_ERROR; | |
9f19cc17 DG |
1763 | goto end; |
1764 | } | |
1765 | } | |
1766 | } | |
f3ed775e DG |
1767 | } |
1768 | ||
fb14d0d8 JR |
1769 | /* Mi closing */ |
1770 | if (lttng_opt_mi) { | |
1771 | /* Close output element */ | |
1772 | ret = mi_lttng_writer_close_element(writer); | |
1773 | if (ret) { | |
1774 | ret = CMD_ERROR; | |
1775 | goto end; | |
1776 | } | |
1777 | ||
1778 | /* Command element close */ | |
1779 | ret = mi_lttng_writer_command_close(writer); | |
1780 | if (ret) { | |
1781 | ret = CMD_ERROR; | |
1782 | goto end; | |
1783 | } | |
1784 | } | |
f3ed775e | 1785 | end: |
fb14d0d8 JR |
1786 | /* Mi clean-up */ |
1787 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1788 | /* Preserve original error code */ | |
1789 | ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL; | |
1790 | } | |
1791 | ||
0e428499 | 1792 | free(domains); |
aa5de748 MD |
1793 | if (handle) { |
1794 | lttng_destroy_handle(handle); | |
1795 | } | |
cd80958d | 1796 | |
ca1c3607 | 1797 | poptFreeContext(pc); |
f3ed775e DG |
1798 | return ret; |
1799 | } |