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 JR |
26 | #include <common/mi-lttng.h> |
27 | ||
c399183f | 28 | #include "../command.h" |
f3ed775e | 29 | |
9f19cc17 DG |
30 | static int opt_userspace; |
31 | static int opt_kernel; | |
3c6a091f | 32 | static int opt_jul; |
5cdb6027 | 33 | static int opt_log4j; |
9f19cc17 DG |
34 | static char *opt_channel; |
35 | static int opt_domain; | |
f37d259d | 36 | static int opt_fields; |
834978fd | 37 | static int opt_syscall; |
d78d6610 DG |
38 | #if 0 |
39 | /* Not implemented yet */ | |
40 | static char *opt_cmd_name; | |
41 | static pid_t opt_pid; | |
42 | #endif | |
9f19cc17 DG |
43 | |
44 | const char *indent4 = " "; | |
45 | const char *indent6 = " "; | |
46 | const char *indent8 = " "; | |
f3ed775e DG |
47 | |
48 | enum { | |
49 | OPT_HELP = 1, | |
eeac7d46 | 50 | OPT_USERSPACE, |
679b4943 | 51 | OPT_LIST_OPTIONS, |
f3ed775e DG |
52 | }; |
53 | ||
cd80958d | 54 | static struct lttng_handle *handle; |
fb14d0d8 | 55 | static struct mi_writer *writer; |
cd80958d | 56 | |
f3ed775e DG |
57 | static struct poptOption long_options[] = { |
58 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
59 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
9f19cc17 | 60 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, |
3c6a091f | 61 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 62 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
d78d6610 DG |
63 | #if 0 |
64 | /* Not implemented yet */ | |
65 | {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, | |
66 | {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, | |
67 | #else | |
68 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, | |
69 | #endif | |
9f19cc17 DG |
70 | {"channel", 'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0}, |
71 | {"domain", 'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0}, | |
f37d259d | 72 | {"fields", 'f', POPT_ARG_VAL, &opt_fields, 1, 0, 0}, |
834978fd | 73 | {"syscall", 'S', POPT_ARG_VAL, &opt_syscall, 1, 0, 0}, |
679b4943 | 74 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
f3ed775e DG |
75 | {0, 0, 0, 0, 0, 0, 0} |
76 | }; | |
77 | ||
78 | /* | |
79 | * usage | |
80 | */ | |
81 | static void usage(FILE *ofp) | |
82 | { | |
747361fe | 83 | fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [SESSION OPTIONS]]\n"); |
9f19cc17 DG |
84 | fprintf(ofp, "\n"); |
85 | fprintf(ofp, "With no arguments, list available tracing session(s)\n"); | |
86 | fprintf(ofp, "\n"); | |
27221701 DG |
87 | fprintf(ofp, "Without a session, -k lists available kernel events\n"); |
88 | fprintf(ofp, "Without a session, -u lists available userspace events\n"); | |
9f19cc17 DG |
89 | fprintf(ofp, "\n"); |
90 | fprintf(ofp, " -h, --help Show this help\n"); | |
27221701 | 91 | fprintf(ofp, " --list-options Simple listing of options\n"); |
9f19cc17 DG |
92 | fprintf(ofp, " -k, --kernel Select kernel domain\n"); |
93 | fprintf(ofp, " -u, --userspace Select user-space domain.\n"); | |
3c6a091f | 94 | fprintf(ofp, " -j, --jul Apply for Java application using JUL\n"); |
9ad71f16 | 95 | fprintf(ofp, " -l, --log4j Apply for Java application using LOG4J\n"); |
f37d259d | 96 | fprintf(ofp, " -f, --fields List event fields.\n"); |
834978fd | 97 | fprintf(ofp, " --syscall List available system calls.\n"); |
d78d6610 | 98 | #if 0 |
9f19cc17 | 99 | fprintf(ofp, " -p, --pid PID List user-space events by PID\n"); |
d78d6610 | 100 | #endif |
f3ed775e | 101 | fprintf(ofp, "\n"); |
27221701 | 102 | fprintf(ofp, "Session Options:\n"); |
9f19cc17 DG |
103 | fprintf(ofp, " -c, --channel NAME List details of a channel\n"); |
104 | fprintf(ofp, " -d, --domain List available domain(s)\n"); | |
f3ed775e DG |
105 | fprintf(ofp, "\n"); |
106 | } | |
107 | ||
108 | /* | |
9f19cc17 | 109 | * Get command line from /proc for a specific pid. |
f3ed775e | 110 | * |
9f19cc17 DG |
111 | * On success, return an allocated string pointer to the proc cmdline. |
112 | * On error, return NULL. | |
f3ed775e DG |
113 | */ |
114 | static char *get_cmdline_by_pid(pid_t pid) | |
115 | { | |
116 | int ret; | |
1ad31aec | 117 | FILE *fp = NULL; |
f3ed775e | 118 | char *cmdline = NULL; |
5f1abdd9 | 119 | char path[20]; /* Can't go bigger than /proc/65535/cmdline */ |
f3ed775e DG |
120 | |
121 | snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); | |
122 | fp = fopen(path, "r"); | |
123 | if (fp == NULL) { | |
124 | goto end; | |
125 | } | |
126 | ||
127 | /* Caller must free() *cmdline */ | |
128 | cmdline = malloc(PATH_MAX); | |
f6962219 JG |
129 | if (!cmdline) { |
130 | perror("malloc cmdline"); | |
131 | goto end; | |
132 | } | |
f3ed775e | 133 | ret = fread(cmdline, 1, PATH_MAX, fp); |
f40799e8 DG |
134 | if (ret < 0) { |
135 | perror("fread proc list"); | |
136 | } | |
f3ed775e DG |
137 | |
138 | end: | |
1ad31aec DG |
139 | if (fp) { |
140 | fclose(fp); | |
141 | } | |
f3ed775e DG |
142 | return cmdline; |
143 | } | |
b551a063 | 144 | |
464dd62d MD |
145 | static |
146 | const char *active_string(int value) | |
147 | { | |
148 | switch (value) { | |
2cbf8fed DG |
149 | case 0: return "inactive"; |
150 | case 1: return "active"; | |
464dd62d MD |
151 | case -1: return ""; |
152 | default: return NULL; | |
153 | } | |
154 | } | |
155 | ||
2cbf8fed DG |
156 | static const char *snapshot_string(int value) |
157 | { | |
158 | switch (value) { | |
159 | case 1: | |
160 | return " snapshot"; | |
161 | default: | |
162 | return ""; | |
163 | } | |
164 | } | |
165 | ||
464dd62d MD |
166 | static |
167 | const char *enabled_string(int value) | |
168 | { | |
169 | switch (value) { | |
b09f0429 MD |
170 | case 0: return " [disabled]"; |
171 | case 1: return " [enabled]"; | |
464dd62d MD |
172 | case -1: return ""; |
173 | default: return NULL; | |
174 | } | |
175 | } | |
176 | ||
fceb65df MD |
177 | static |
178 | const char *filter_string(int value) | |
179 | { | |
180 | switch (value) { | |
181 | case 1: return " [with filter]"; | |
182 | default: return ""; | |
183 | } | |
184 | } | |
185 | ||
4634f12e JI |
186 | static |
187 | const char *exclusion_string(int value) | |
188 | { | |
189 | switch (value) { | |
190 | case 1: return " [has exclusions]"; | |
191 | default: return ""; | |
192 | } | |
193 | } | |
194 | ||
1f0e17de DG |
195 | static const char *logleveltype_string(enum lttng_loglevel_type value) |
196 | { | |
197 | switch (value) { | |
af6bce80 DG |
198 | case LTTNG_EVENT_LOGLEVEL_ALL: |
199 | return ":"; | |
1f0e17de | 200 | case LTTNG_EVENT_LOGLEVEL_RANGE: |
af6bce80 | 201 | return " <="; |
1f0e17de | 202 | case LTTNG_EVENT_LOGLEVEL_SINGLE: |
af6bce80 | 203 | return " =="; |
1f0e17de | 204 | default: |
af6bce80 | 205 | return " <<TYPE UNKN>>"; |
1f0e17de DG |
206 | } |
207 | } | |
208 | ||
834978fd DG |
209 | static const char *bitness_event(enum lttng_event_flag flags) |
210 | { | |
211 | if (flags & LTTNG_EVENT_FLAG_SYSCALL_32) { | |
212 | if (flags & LTTNG_EVENT_FLAG_SYSCALL_64) { | |
213 | return " [32/64-bit]"; | |
214 | } else { | |
215 | return " [32-bit]"; | |
216 | } | |
217 | } else if (flags & LTTNG_EVENT_FLAG_SYSCALL_64) { | |
218 | return " [64-bit]"; | |
219 | } else { | |
220 | return ""; | |
221 | } | |
222 | } | |
223 | ||
b551a063 DG |
224 | /* |
225 | * Pretty print single event. | |
226 | */ | |
227 | static void print_events(struct lttng_event *event) | |
228 | { | |
229 | switch (event->type) { | |
230 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 231 | { |
8b703175 | 232 | if (event->loglevel != -1) { |
af6bce80 | 233 | MSG("%s%s (loglevel%s %s (%d)) (type: tracepoint)%s%s%s", |
8b703175 | 234 | indent6, |
81afa345 | 235 | event->name, |
1f0e17de | 236 | logleveltype_string(event->loglevel_type), |
970d848b | 237 | mi_lttng_loglevel_string(event->loglevel, handle->domain.type), |
8b703175 | 238 | event->loglevel, |
fceb65df | 239 | enabled_string(event->enabled), |
4634f12e | 240 | exclusion_string(event->exclusion), |
fceb65df | 241 | filter_string(event->filter)); |
8b703175 | 242 | } else { |
4634f12e | 243 | MSG("%s%s (type: tracepoint)%s%s%s", |
8b703175 MD |
244 | indent6, |
245 | event->name, | |
fceb65df | 246 | enabled_string(event->enabled), |
4634f12e | 247 | exclusion_string(event->exclusion), |
fceb65df | 248 | filter_string(event->filter)); |
8b703175 | 249 | } |
b551a063 | 250 | break; |
e4baff1e | 251 | } |
1896972b DG |
252 | case LTTNG_EVENT_FUNCTION: |
253 | MSG("%s%s (type: function)%s%s", indent6, | |
254 | event->name, enabled_string(event->enabled), | |
255 | filter_string(event->filter)); | |
256 | if (event->attr.probe.addr != 0) { | |
257 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
258 | } else { | |
259 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
260 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
261 | } | |
262 | break; | |
b551a063 | 263 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
264 | MSG("%s%s (type: probe)%s%s", indent6, |
265 | event->name, enabled_string(event->enabled), | |
266 | filter_string(event->filter)); | |
b551a063 DG |
267 | if (event->attr.probe.addr != 0) { |
268 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
269 | } else { | |
270 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
271 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
272 | } | |
273 | break; | |
b551a063 | 274 | case LTTNG_EVENT_FUNCTION_ENTRY: |
fceb65df MD |
275 | MSG("%s%s (type: function)%s%s", indent6, |
276 | event->name, enabled_string(event->enabled), | |
277 | filter_string(event->filter)); | |
b551a063 DG |
278 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
279 | break; | |
280 | case LTTNG_EVENT_SYSCALL: | |
834978fd DG |
281 | MSG("%s%s%s%s%s", indent6, event->name, |
282 | (opt_syscall ? "" : " (type:syscall)"), | |
fceb65df | 283 | enabled_string(event->enabled), |
834978fd | 284 | bitness_event(event->flags)); |
b551a063 DG |
285 | break; |
286 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
287 | MSG("%s (type: noop)%s%s", indent6, |
288 | enabled_string(event->enabled), | |
289 | filter_string(event->filter)); | |
b551a063 DG |
290 | break; |
291 | case LTTNG_EVENT_ALL: | |
292 | /* We should never have "all" events in list. */ | |
293 | assert(0); | |
294 | break; | |
295 | } | |
296 | } | |
297 | ||
f37d259d MD |
298 | static const char *field_type(struct lttng_event_field *field) |
299 | { | |
300 | switch(field->type) { | |
301 | case LTTNG_EVENT_FIELD_INTEGER: | |
302 | return "integer"; | |
303 | case LTTNG_EVENT_FIELD_ENUM: | |
304 | return "enum"; | |
305 | case LTTNG_EVENT_FIELD_FLOAT: | |
306 | return "float"; | |
307 | case LTTNG_EVENT_FIELD_STRING: | |
308 | return "string"; | |
309 | case LTTNG_EVENT_FIELD_OTHER: | |
310 | default: /* fall-through */ | |
311 | return "unknown"; | |
312 | } | |
313 | } | |
314 | ||
315 | /* | |
316 | * Pretty print single event fields. | |
317 | */ | |
318 | static void print_event_field(struct lttng_event_field *field) | |
319 | { | |
320 | if (!field->field_name[0]) { | |
321 | return; | |
322 | } | |
d8fbe2a9 | 323 | MSG("%sfield: %s (%s)%s", indent8, field->field_name, |
45a32634 | 324 | field_type(field), field->nowrite ? " [no write]" : ""); |
f37d259d MD |
325 | } |
326 | ||
fb14d0d8 JR |
327 | /* |
328 | * Machine interface | |
329 | * Jul and ust event listing | |
330 | */ | |
5cdb6027 | 331 | static int mi_list_agent_ust_events(struct lttng_event *events, int count, |
fb14d0d8 JR |
332 | struct lttng_domain *domain) |
333 | { | |
334 | int ret, i; | |
335 | pid_t cur_pid = 0; | |
336 | char *cmdline = NULL; | |
337 | int pid_element_open = 0; | |
338 | ||
339 | /* Open domains element */ | |
340 | ret = mi_lttng_domains_open(writer); | |
341 | if (ret) { | |
342 | goto end; | |
343 | } | |
344 | ||
345 | /* Write domain */ | |
346 | ret = mi_lttng_domain(writer, domain, 1); | |
347 | if (ret) { | |
348 | goto end; | |
349 | } | |
350 | ||
351 | /* Open pids element */ | |
352 | ret = mi_lttng_pids_open(writer); | |
353 | if (ret) { | |
354 | goto end; | |
355 | } | |
356 | ||
357 | for (i = 0; i < count; i++) { | |
358 | if (cur_pid != events[i].pid) { | |
359 | if (pid_element_open) { | |
360 | /* Close the previous events and pid element */ | |
361 | ret = mi_lttng_close_multi_element(writer, 2); | |
362 | if (ret) { | |
363 | goto end; | |
364 | } | |
365 | pid_element_open = 0; | |
366 | } | |
367 | ||
368 | cur_pid = events[i].pid; | |
369 | cmdline = get_cmdline_by_pid(cur_pid); | |
370 | if (!cmdline) { | |
371 | ret = CMD_ERROR; | |
372 | goto end; | |
373 | } | |
374 | ||
375 | if (!pid_element_open) { | |
376 | /* Open and write a pid element */ | |
377 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
378 | if (ret) { | |
379 | goto error; | |
380 | } | |
381 | ||
382 | /* Open events element */ | |
383 | ret = mi_lttng_events_open(writer); | |
384 | if (ret) { | |
385 | goto error; | |
386 | } | |
387 | ||
388 | pid_element_open = 1; | |
389 | } | |
390 | free(cmdline); | |
391 | } | |
392 | ||
393 | /* Write an event */ | |
970d848b | 394 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
fb14d0d8 JR |
395 | if (ret) { |
396 | goto end; | |
397 | } | |
398 | } | |
399 | ||
400 | /* Close pids */ | |
401 | ret = mi_lttng_writer_close_element(writer); | |
402 | if (ret) { | |
403 | goto end; | |
404 | } | |
405 | ||
406 | /* Close domain, domains */ | |
407 | ret = mi_lttng_close_multi_element(writer, 2); | |
408 | end: | |
409 | return ret; | |
410 | error: | |
411 | free(cmdline); | |
412 | return ret; | |
413 | } | |
414 | ||
5cdb6027 | 415 | static int list_agent_events(void) |
3c6a091f | 416 | { |
fb14d0d8 | 417 | int i, size, ret = CMD_SUCCESS; |
3c6a091f DG |
418 | struct lttng_domain domain; |
419 | struct lttng_handle *handle; | |
420 | struct lttng_event *event_list; | |
421 | pid_t cur_pid = 0; | |
422 | char *cmdline = NULL; | |
5cdb6027 | 423 | const char *agent_domain_str; |
3c6a091f DG |
424 | |
425 | memset(&domain, 0, sizeof(domain)); | |
5cdb6027 DG |
426 | if (opt_jul) { |
427 | domain.type = LTTNG_DOMAIN_JUL; | |
428 | } else if (opt_log4j) { | |
429 | domain.type = LTTNG_DOMAIN_LOG4J; | |
430 | } | |
431 | ||
432 | agent_domain_str = get_domain_str(domain.type); | |
433 | ||
434 | DBG("Getting %s tracing events", agent_domain_str); | |
3c6a091f DG |
435 | |
436 | handle = lttng_create_handle(NULL, &domain); | |
437 | if (handle == NULL) { | |
fb14d0d8 JR |
438 | ret = CMD_ERROR; |
439 | goto end; | |
3c6a091f DG |
440 | } |
441 | ||
442 | size = lttng_list_tracepoints(handle, &event_list); | |
443 | if (size < 0) { | |
5cdb6027 DG |
444 | ERR("Unable to list %s events: %s", agent_domain_str, |
445 | lttng_strerror(size)); | |
fb14d0d8 JR |
446 | ret = CMD_ERROR; |
447 | goto end; | |
3c6a091f DG |
448 | } |
449 | ||
fb14d0d8 JR |
450 | if (lttng_opt_mi) { |
451 | /* Mi print */ | |
5cdb6027 | 452 | ret = mi_list_agent_ust_events(event_list, size, &domain); |
fb14d0d8 JR |
453 | if (ret) { |
454 | ret = CMD_ERROR; | |
455 | goto error; | |
3c6a091f | 456 | } |
fb14d0d8 JR |
457 | } else { |
458 | /* Pretty print */ | |
5cdb6027 DG |
459 | MSG("%s events (Logger name):\n-------------------------", |
460 | agent_domain_str); | |
3c6a091f | 461 | |
fb14d0d8 JR |
462 | if (size == 0) { |
463 | MSG("None"); | |
464 | } | |
3c6a091f | 465 | |
fb14d0d8 JR |
466 | for (i = 0; i < size; i++) { |
467 | if (cur_pid != event_list[i].pid) { | |
468 | cur_pid = event_list[i].pid; | |
469 | cmdline = get_cmdline_by_pid(cur_pid); | |
470 | if (cmdline == NULL) { | |
471 | ret = CMD_ERROR; | |
472 | goto error; | |
473 | } | |
474 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
475 | free(cmdline); | |
476 | } | |
477 | MSG("%s- %s", indent6, event_list[i].name); | |
478 | } | |
3c6a091f | 479 | |
fb14d0d8 JR |
480 | MSG(""); |
481 | } | |
3c6a091f DG |
482 | |
483 | error: | |
fb14d0d8 JR |
484 | free(event_list); |
485 | end: | |
3c6a091f | 486 | lttng_destroy_handle(handle); |
fb14d0d8 | 487 | return ret; |
3c6a091f DG |
488 | } |
489 | ||
b551a063 DG |
490 | /* |
491 | * Ask session daemon for all user space tracepoints available. | |
492 | */ | |
493 | static int list_ust_events(void) | |
494 | { | |
fb14d0d8 | 495 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
496 | struct lttng_domain domain; |
497 | struct lttng_handle *handle; | |
498 | struct lttng_event *event_list; | |
499 | pid_t cur_pid = 0; | |
ea5cbc00 | 500 | char *cmdline = NULL; |
b551a063 | 501 | |
441c16a7 MD |
502 | memset(&domain, 0, sizeof(domain)); |
503 | ||
b551a063 DG |
504 | DBG("Getting UST tracing events"); |
505 | ||
506 | domain.type = LTTNG_DOMAIN_UST; | |
507 | ||
508 | handle = lttng_create_handle(NULL, &domain); | |
509 | if (handle == NULL) { | |
fb14d0d8 JR |
510 | ret = CMD_ERROR; |
511 | goto end; | |
b551a063 DG |
512 | } |
513 | ||
514 | size = lttng_list_tracepoints(handle, &event_list); | |
515 | if (size < 0) { | |
60e835ca | 516 | ERR("Unable to list UST events: %s", lttng_strerror(size)); |
fb14d0d8 JR |
517 | ret = CMD_ERROR; |
518 | goto error; | |
b551a063 DG |
519 | } |
520 | ||
fb14d0d8 JR |
521 | if (lttng_opt_mi) { |
522 | /* Mi print */ | |
5cdb6027 | 523 | ret = mi_list_agent_ust_events(event_list, size, &domain); |
fb14d0d8 JR |
524 | } else { |
525 | /* Pretty print */ | |
526 | MSG("UST events:\n-------------"); | |
527 | ||
528 | if (size == 0) { | |
529 | MSG("None"); | |
530 | } | |
531 | ||
532 | for (i = 0; i < size; i++) { | |
533 | if (cur_pid != event_list[i].pid) { | |
534 | cur_pid = event_list[i].pid; | |
535 | cmdline = get_cmdline_by_pid(cur_pid); | |
536 | if (cmdline == NULL) { | |
537 | ret = CMD_ERROR; | |
538 | goto error; | |
539 | } | |
540 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
541 | free(cmdline); | |
542 | } | |
543 | print_events(&event_list[i]); | |
544 | } | |
b551a063 | 545 | |
fb14d0d8 | 546 | MSG(""); |
b551a063 DG |
547 | } |
548 | ||
fb14d0d8 JR |
549 | error: |
550 | free(event_list); | |
551 | end: | |
552 | lttng_destroy_handle(handle); | |
553 | return ret; | |
554 | } | |
555 | ||
556 | /* | |
557 | * Machine interface | |
558 | * List all ust event with their fields | |
559 | */ | |
560 | static int mi_list_ust_event_fields(struct lttng_event_field *fields, int count, | |
561 | struct lttng_domain *domain) | |
562 | { | |
563 | int ret, i; | |
564 | pid_t cur_pid = 0; | |
565 | char *cmdline = NULL; | |
566 | int pid_element_open = 0; | |
567 | int event_element_open = 0; | |
568 | struct lttng_event cur_event; | |
569 | ||
570 | /* Open domains element */ | |
571 | ret = mi_lttng_domains_open(writer); | |
572 | if (ret) { | |
573 | goto end; | |
574 | } | |
575 | ||
576 | /* Write domain */ | |
577 | ret = mi_lttng_domain(writer, domain, 1); | |
578 | if (ret) { | |
579 | goto end; | |
580 | } | |
581 | ||
582 | /* Open pids element */ | |
583 | ret = mi_lttng_pids_open(writer); | |
584 | if (ret) { | |
585 | goto end; | |
586 | } | |
587 | ||
588 | for (i = 0; i < count; i++) { | |
589 | if (cur_pid != fields[i].event.pid) { | |
590 | if (pid_element_open) { | |
591 | if (event_element_open) { | |
485ca16f DG |
592 | |
593 | /* Close the previous field element and event. */ | |
fb14d0d8 JR |
594 | ret = mi_lttng_close_multi_element(writer, 2); |
595 | if (ret) { | |
596 | goto end; | |
597 | } | |
598 | event_element_open = 0; | |
599 | } | |
600 | /* Close the previous events, pid element */ | |
601 | ret = mi_lttng_close_multi_element(writer, 2); | |
602 | if (ret) { | |
603 | goto end; | |
604 | } | |
605 | pid_element_open = 0; | |
606 | } | |
607 | ||
608 | cur_pid = fields[i].event.pid; | |
ea5cbc00 | 609 | cmdline = get_cmdline_by_pid(cur_pid); |
fb14d0d8 JR |
610 | if (!pid_element_open) { |
611 | /* Open and write a pid element */ | |
612 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
613 | if (ret) { | |
614 | goto error; | |
615 | } | |
616 | ||
617 | /* Open events element */ | |
618 | ret = mi_lttng_events_open(writer); | |
619 | if (ret) { | |
620 | goto error; | |
621 | } | |
622 | pid_element_open = 1; | |
623 | } | |
ea5cbc00 | 624 | free(cmdline); |
fb14d0d8 JR |
625 | /* Wipe current event since we are about to print a new PID. */ |
626 | memset(&cur_event, 0, sizeof(cur_event)); | |
b551a063 | 627 | } |
b551a063 | 628 | |
fb14d0d8 JR |
629 | if (strcmp(cur_event.name, fields[i].event.name) != 0) { |
630 | if (event_element_open) { | |
631 | /* Close the previous fields element and the previous event */ | |
632 | ret = mi_lttng_close_multi_element(writer, 2); | |
633 | if (ret) { | |
634 | goto end; | |
635 | } | |
636 | event_element_open = 0; | |
637 | } | |
638 | ||
639 | memcpy(&cur_event, &fields[i].event, | |
640 | sizeof(cur_event)); | |
b551a063 | 641 | |
fb14d0d8 JR |
642 | if (!event_element_open) { |
643 | /* Open and write the event */ | |
970d848b DG |
644 | ret = mi_lttng_event(writer, &cur_event, 1, |
645 | handle->domain.type); | |
fb14d0d8 JR |
646 | if (ret) { |
647 | goto end; | |
648 | } | |
649 | ||
650 | /* Open a fields element */ | |
651 | ret = mi_lttng_event_fields_open(writer); | |
652 | if (ret) { | |
653 | goto end; | |
654 | } | |
655 | event_element_open = 1; | |
656 | } | |
657 | } | |
b551a063 | 658 | |
fb14d0d8 JR |
659 | /* Print the event_field */ |
660 | ret = mi_lttng_event_field(writer, &fields[i]); | |
661 | if (ret) { | |
662 | goto end; | |
663 | } | |
664 | } | |
b551a063 | 665 | |
fb14d0d8 JR |
666 | /* Close pids, domain, domains */ |
667 | ret = mi_lttng_close_multi_element(writer, 3); | |
668 | end: | |
669 | return ret; | |
b551a063 | 670 | error: |
fb14d0d8 JR |
671 | free(cmdline); |
672 | return ret; | |
b551a063 | 673 | } |
f3ed775e | 674 | |
f37d259d MD |
675 | /* |
676 | * Ask session daemon for all user space tracepoint fields available. | |
677 | */ | |
678 | static int list_ust_event_fields(void) | |
679 | { | |
fb14d0d8 | 680 | int i, size, ret = CMD_SUCCESS; |
f37d259d MD |
681 | struct lttng_domain domain; |
682 | struct lttng_handle *handle; | |
683 | struct lttng_event_field *event_field_list; | |
684 | pid_t cur_pid = 0; | |
ea5cbc00 CB |
685 | char *cmdline = NULL; |
686 | ||
f37d259d MD |
687 | struct lttng_event cur_event; |
688 | ||
689 | memset(&domain, 0, sizeof(domain)); | |
690 | memset(&cur_event, 0, sizeof(cur_event)); | |
691 | ||
692 | DBG("Getting UST tracing event fields"); | |
693 | ||
694 | domain.type = LTTNG_DOMAIN_UST; | |
695 | ||
696 | handle = lttng_create_handle(NULL, &domain); | |
697 | if (handle == NULL) { | |
fb14d0d8 JR |
698 | ret = CMD_ERROR; |
699 | goto end; | |
f37d259d MD |
700 | } |
701 | ||
702 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
703 | if (size < 0) { | |
60e835ca | 704 | ERR("Unable to list UST event fields: %s", lttng_strerror(size)); |
fb14d0d8 JR |
705 | ret = CMD_ERROR; |
706 | goto end; | |
f37d259d MD |
707 | } |
708 | ||
fb14d0d8 JR |
709 | if (lttng_opt_mi) { |
710 | /* Mi print */ | |
711 | ret = mi_list_ust_event_fields(event_field_list, size, &domain); | |
712 | if (ret) { | |
713 | ret = CMD_ERROR; | |
714 | goto error; | |
715 | } | |
716 | } else { | |
717 | /* Pretty print */ | |
718 | MSG("UST events:\n-------------"); | |
f37d259d | 719 | |
fb14d0d8 JR |
720 | if (size == 0) { |
721 | MSG("None"); | |
f37d259d | 722 | } |
fb14d0d8 JR |
723 | |
724 | for (i = 0; i < size; i++) { | |
725 | if (cur_pid != event_field_list[i].event.pid) { | |
726 | cur_pid = event_field_list[i].event.pid; | |
727 | cmdline = get_cmdline_by_pid(cur_pid); | |
728 | if (cmdline == NULL) { | |
729 | ret = CMD_ERROR; | |
730 | goto error; | |
731 | } | |
732 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
733 | free(cmdline); | |
734 | /* Wipe current event since we are about to print a new PID. */ | |
735 | memset(&cur_event, 0, sizeof(cur_event)); | |
736 | } | |
737 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
738 | print_events(&event_field_list[i].event); | |
739 | memcpy(&cur_event, &event_field_list[i].event, | |
740 | sizeof(cur_event)); | |
741 | } | |
742 | print_event_field(&event_field_list[i]); | |
f37d259d | 743 | } |
f37d259d | 744 | |
fb14d0d8 JR |
745 | MSG(""); |
746 | } | |
f37d259d | 747 | |
fb14d0d8 | 748 | error: |
f37d259d | 749 | free(event_field_list); |
fb14d0d8 | 750 | end: |
f37d259d | 751 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
752 | return ret; |
753 | } | |
f37d259d | 754 | |
fb14d0d8 JR |
755 | /* |
756 | * Machine interface | |
757 | * Print a list of kernel events | |
758 | */ | |
759 | static int mi_list_kernel_events(struct lttng_event *events, int count, | |
760 | struct lttng_domain *domain) | |
761 | { | |
762 | int ret, i; | |
f37d259d | 763 | |
fb14d0d8 JR |
764 | /* Open domains element */ |
765 | ret = mi_lttng_domains_open(writer); | |
766 | if (ret) { | |
767 | goto end; | |
768 | } | |
769 | ||
770 | /* Write domain */ | |
771 | ret = mi_lttng_domain(writer, domain, 1); | |
772 | if (ret) { | |
773 | goto end; | |
774 | } | |
775 | ||
776 | /* Open events */ | |
777 | ret = mi_lttng_events_open(writer); | |
778 | if (ret) { | |
779 | goto end; | |
780 | } | |
781 | ||
782 | for (i = 0; i < count; i++) { | |
970d848b | 783 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
fb14d0d8 JR |
784 | if (ret) { |
785 | goto end; | |
786 | } | |
787 | } | |
788 | ||
789 | /* close events, domain and domains */ | |
790 | ret = mi_lttng_close_multi_element(writer, 3); | |
791 | if (ret) { | |
792 | goto end; | |
793 | } | |
794 | ||
795 | end: | |
796 | return ret; | |
f37d259d MD |
797 | } |
798 | ||
f3ed775e | 799 | /* |
fb14d0d8 | 800 | * Ask for all trace events in the kernel |
f3ed775e | 801 | */ |
9f19cc17 | 802 | static int list_kernel_events(void) |
f3ed775e | 803 | { |
fb14d0d8 | 804 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
805 | struct lttng_domain domain; |
806 | struct lttng_handle *handle; | |
9f19cc17 | 807 | struct lttng_event *event_list; |
f3ed775e | 808 | |
441c16a7 MD |
809 | memset(&domain, 0, sizeof(domain)); |
810 | ||
b551a063 DG |
811 | DBG("Getting kernel tracing events"); |
812 | ||
813 | domain.type = LTTNG_DOMAIN_KERNEL; | |
814 | ||
815 | handle = lttng_create_handle(NULL, &domain); | |
816 | if (handle == NULL) { | |
fb14d0d8 | 817 | ret = CMD_ERROR; |
b551a063 DG |
818 | goto error; |
819 | } | |
f3ed775e | 820 | |
cd80958d | 821 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 | 822 | if (size < 0) { |
60e835ca | 823 | ERR("Unable to list kernel events: %s", lttng_strerror(size)); |
ef021732 | 824 | lttng_destroy_handle(handle); |
fb14d0d8 | 825 | return CMD_ERROR; |
f3ed775e DG |
826 | } |
827 | ||
fb14d0d8 JR |
828 | if (lttng_opt_mi) { |
829 | /* Mi print */ | |
830 | ret = mi_list_kernel_events(event_list, size, &domain); | |
831 | if (ret) { | |
832 | ret = CMD_ERROR; | |
833 | goto end; | |
834 | } | |
835 | } else { | |
836 | MSG("Kernel events:\n-------------"); | |
f3ed775e | 837 | |
fb14d0d8 JR |
838 | for (i = 0; i < size; i++) { |
839 | print_events(&event_list[i]); | |
840 | } | |
f3ed775e | 841 | |
fb14d0d8 JR |
842 | MSG(""); |
843 | } | |
b551a063 | 844 | |
fb14d0d8 | 845 | end: |
f3ed775e DG |
846 | free(event_list); |
847 | ||
ef021732 | 848 | lttng_destroy_handle(handle); |
fb14d0d8 | 849 | return ret; |
b551a063 DG |
850 | |
851 | error: | |
ef021732 | 852 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
853 | return ret; |
854 | } | |
855 | ||
834978fd DG |
856 | /* |
857 | * Machine interface | |
858 | * Print a list of system calls. | |
859 | */ | |
860 | static int mi_list_syscalls(struct lttng_event *events, int count) | |
861 | { | |
862 | int ret, i; | |
863 | ||
864 | /* Open events */ | |
865 | ret = mi_lttng_events_open(writer); | |
866 | if (ret) { | |
867 | goto end; | |
868 | } | |
869 | ||
870 | for (i = 0; i < count; i++) { | |
970d848b | 871 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
834978fd DG |
872 | if (ret) { |
873 | goto end; | |
874 | } | |
875 | } | |
876 | ||
877 | /* Close events. */ | |
878 | ret = mi_lttng_writer_close_element(writer); | |
879 | if (ret) { | |
880 | goto end; | |
881 | } | |
882 | ||
883 | end: | |
884 | return ret; | |
885 | } | |
886 | ||
887 | /* | |
888 | * Ask for kernel system calls. | |
889 | */ | |
890 | static int list_syscalls(void) | |
891 | { | |
892 | int i, size, ret = CMD_SUCCESS; | |
893 | struct lttng_event *event_list; | |
894 | ||
895 | DBG("Getting kernel system call events"); | |
896 | ||
897 | size = lttng_list_syscalls(&event_list); | |
898 | if (size < 0) { | |
899 | ERR("Unable to list system calls: %s", lttng_strerror(size)); | |
900 | ret = CMD_ERROR; | |
901 | goto error; | |
902 | } | |
903 | ||
904 | if (lttng_opt_mi) { | |
905 | /* Mi print */ | |
906 | ret = mi_list_syscalls(event_list, size); | |
907 | if (ret) { | |
908 | ret = CMD_ERROR; | |
909 | goto end; | |
910 | } | |
911 | } else { | |
912 | MSG("System calls:\n-------------"); | |
913 | ||
914 | for (i = 0; i < size; i++) { | |
915 | print_events(&event_list[i]); | |
916 | } | |
917 | ||
918 | MSG(""); | |
919 | } | |
920 | ||
921 | end: | |
922 | free(event_list); | |
923 | return ret; | |
924 | ||
925 | error: | |
926 | return ret; | |
927 | } | |
928 | ||
fb14d0d8 JR |
929 | /* |
930 | * Machine Interface | |
5cdb6027 | 931 | * Print a list of agent events |
fb14d0d8 | 932 | */ |
5cdb6027 | 933 | static int mi_list_session_agent_events(struct lttng_event *events, int count) |
fb14d0d8 JR |
934 | { |
935 | int ret, i; | |
936 | ||
937 | /* Open events element */ | |
938 | ret = mi_lttng_events_open(writer); | |
939 | if (ret) { | |
940 | goto end; | |
941 | } | |
942 | ||
943 | for (i = 0; i < count; i++) { | |
970d848b | 944 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
fb14d0d8 JR |
945 | if (ret) { |
946 | goto end; | |
947 | } | |
948 | } | |
949 | ||
950 | /* Close events element */ | |
951 | ret = mi_lttng_writer_close_element(writer); | |
952 | ||
953 | end: | |
954 | return ret; | |
f3ed775e DG |
955 | } |
956 | ||
3c6a091f | 957 | /* |
5cdb6027 | 958 | * List agent events for a specific session using the handle. |
3c6a091f DG |
959 | * |
960 | * Return CMD_SUCCESS on success else a negative value. | |
961 | */ | |
5cdb6027 | 962 | static int list_session_agent_events(void) |
3c6a091f | 963 | { |
fb14d0d8 | 964 | int ret = CMD_SUCCESS, count, i; |
3c6a091f DG |
965 | struct lttng_event *events = NULL; |
966 | ||
967 | count = lttng_list_events(handle, "", &events); | |
968 | if (count < 0) { | |
fb14d0d8 JR |
969 | ret = CMD_ERROR; |
970 | ERR("%s", lttng_strerror(count)); | |
3c6a091f DG |
971 | goto error; |
972 | } | |
973 | ||
fb14d0d8 JR |
974 | if (lttng_opt_mi) { |
975 | /* Mi print */ | |
5cdb6027 | 976 | ret = mi_list_session_agent_events(events, count); |
fb14d0d8 JR |
977 | if (ret) { |
978 | ret = CMD_ERROR; | |
979 | goto end; | |
980 | } | |
981 | } else { | |
982 | /* Pretty print */ | |
983 | MSG("Events (Logger name):\n---------------------"); | |
984 | if (count == 0) { | |
985 | MSG("%sNone\n", indent6); | |
986 | goto end; | |
987 | } | |
988 | ||
989 | for (i = 0; i < count; i++) { | |
990 | MSG("%s- %s%s (loglevel%s %s)", indent4, events[i].name, | |
991 | enabled_string(events[i].enabled), | |
992 | logleveltype_string(events[i].loglevel_type), | |
970d848b DG |
993 | mi_lttng_loglevel_string(events[i].loglevel, |
994 | handle->domain.type)); | |
fb14d0d8 JR |
995 | } |
996 | ||
997 | MSG(""); | |
998 | } | |
999 | ||
1000 | end: | |
1001 | free(events); | |
1002 | error: | |
1003 | return ret; | |
1004 | } | |
1005 | ||
1006 | /* | |
1007 | * Machine interface | |
1008 | * print a list of event | |
1009 | */ | |
1010 | static int mi_list_events(struct lttng_event *events, int count) | |
1011 | { | |
1012 | int ret, i; | |
1013 | ||
1014 | /* Open events element */ | |
1015 | ret = mi_lttng_events_open(writer); | |
1016 | if (ret) { | |
3c6a091f DG |
1017 | goto end; |
1018 | } | |
1019 | ||
1020 | for (i = 0; i < count; i++) { | |
970d848b | 1021 | ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); |
fb14d0d8 JR |
1022 | if (ret) { |
1023 | goto end; | |
1024 | } | |
3c6a091f DG |
1025 | } |
1026 | ||
fb14d0d8 JR |
1027 | /* Close events element */ |
1028 | ret = mi_lttng_writer_close_element(writer); | |
3c6a091f DG |
1029 | |
1030 | end: | |
3c6a091f DG |
1031 | return ret; |
1032 | } | |
1033 | ||
f3ed775e | 1034 | /* |
9f19cc17 | 1035 | * List events of channel of session and domain. |
f3ed775e | 1036 | */ |
cd80958d | 1037 | static int list_events(const char *channel_name) |
f3ed775e | 1038 | { |
fb14d0d8 | 1039 | int ret = CMD_SUCCESS, count, i; |
9f19cc17 | 1040 | struct lttng_event *events = NULL; |
f3ed775e | 1041 | |
cd80958d | 1042 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e | 1043 | if (count < 0) { |
fb14d0d8 JR |
1044 | ret = CMD_ERROR; |
1045 | ERR("%s", lttng_strerror(count)); | |
f3ed775e DG |
1046 | goto error; |
1047 | } | |
1048 | ||
fb14d0d8 JR |
1049 | if (lttng_opt_mi) { |
1050 | /* Mi print */ | |
1051 | ret = mi_list_events(events, count); | |
1052 | if (ret) { | |
1053 | ret = CMD_ERROR; | |
1054 | goto end; | |
1055 | } | |
1056 | } else { | |
1057 | /* Pretty print */ | |
1058 | MSG("\n%sEvents:", indent4); | |
1059 | if (count == 0) { | |
1060 | MSG("%sNone\n", indent6); | |
1061 | goto end; | |
1062 | } | |
f3ed775e | 1063 | |
fb14d0d8 JR |
1064 | for (i = 0; i < count; i++) { |
1065 | print_events(&events[i]); | |
1066 | } | |
f3ed775e | 1067 | |
fb14d0d8 JR |
1068 | MSG(""); |
1069 | } | |
9f19cc17 | 1070 | end: |
0e428499 | 1071 | free(events); |
f3ed775e DG |
1072 | error: |
1073 | return ret; | |
1074 | } | |
1075 | ||
1076 | /* | |
9f19cc17 DG |
1077 | * Pretty print channel |
1078 | */ | |
1079 | static void print_channel(struct lttng_channel *channel) | |
1080 | { | |
464dd62d | 1081 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
1082 | |
1083 | MSG("%sAttributes:", indent4); | |
a5bbe8f6 DG |
1084 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); |
1085 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
9f19cc17 | 1086 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); |
a5bbe8f6 DG |
1087 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); |
1088 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
2f785fe7 DG |
1089 | MSG("%strace file count: %" PRIu64, indent6, channel->attr.tracefile_count); |
1090 | MSG("%strace file size (bytes): %" PRIu64, indent6, channel->attr.tracefile_size); | |
9f19cc17 DG |
1091 | switch (channel->attr.output) { |
1092 | case LTTNG_EVENT_SPLICE: | |
1093 | MSG("%soutput: splice()", indent6); | |
1094 | break; | |
1095 | case LTTNG_EVENT_MMAP: | |
1096 | MSG("%soutput: mmap()", indent6); | |
1097 | break; | |
1098 | } | |
1099 | } | |
1100 | ||
fb14d0d8 JR |
1101 | /* |
1102 | * Machine interface | |
1103 | * Print a list of channel | |
1104 | * | |
1105 | */ | |
1106 | static int mi_list_channels(struct lttng_channel *channels, int count, | |
1107 | const char *channel_name) | |
1108 | { | |
1109 | int i, ret; | |
1110 | unsigned int chan_found = 0; | |
1111 | ||
1112 | /* Open channels element */ | |
1113 | ret = mi_lttng_channels_open(writer); | |
1114 | if (ret) { | |
1115 | goto error; | |
1116 | } | |
1117 | ||
1118 | for (i = 0; i < count; i++) { | |
1119 | if (channel_name != NULL) { | |
1120 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1121 | chan_found = 1; | |
1122 | } else { | |
1123 | continue; | |
1124 | } | |
1125 | } | |
1126 | ||
1127 | /* Write channel element and leave it open */ | |
1128 | ret = mi_lttng_channel(writer, &channels[i], 1); | |
1129 | if (ret) { | |
1130 | goto error; | |
1131 | } | |
1132 | ||
1133 | /* Listing events per channel */ | |
1134 | ret = list_events(channels[i].name); | |
1135 | if (ret) { | |
1136 | goto error; | |
1137 | } | |
1138 | ||
1139 | /* Closing the channel element we opened earlier */ | |
1140 | ret = mi_lttng_writer_close_element(writer); | |
1141 | if (ret) { | |
1142 | goto error; | |
1143 | } | |
1144 | ||
1145 | if (chan_found) { | |
1146 | break; | |
1147 | } | |
1148 | } | |
1149 | ||
1150 | /* Close channels element */ | |
1151 | ret = mi_lttng_writer_close_element(writer); | |
1152 | if (ret) { | |
1153 | goto error; | |
1154 | } | |
1155 | ||
1156 | error: | |
1157 | return ret; | |
1158 | } | |
1159 | ||
9f19cc17 DG |
1160 | /* |
1161 | * List channel(s) of session and domain. | |
f3ed775e | 1162 | * |
9f19cc17 | 1163 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 1164 | */ |
cd80958d | 1165 | static int list_channels(const char *channel_name) |
f3ed775e | 1166 | { |
9f19cc17 DG |
1167 | int count, i, ret = CMD_SUCCESS; |
1168 | unsigned int chan_found = 0; | |
1169 | struct lttng_channel *channels = NULL; | |
f3ed775e | 1170 | |
3e25cb20 | 1171 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 1172 | |
cd80958d | 1173 | count = lttng_list_channels(handle, &channels); |
f3ed775e | 1174 | if (count < 0) { |
c7d620a2 DG |
1175 | switch (-count) { |
1176 | case LTTNG_ERR_KERN_CHAN_NOT_FOUND: | |
fb14d0d8 JR |
1177 | if (lttng_opt_mi) { |
1178 | /* When printing mi this is not an error | |
1179 | * but an empty channels element */ | |
1180 | count = 0; | |
1181 | } else { | |
1182 | ret = CMD_SUCCESS; | |
1183 | WARN("No kernel channel"); | |
1184 | goto error_channels; | |
1185 | } | |
c7d620a2 DG |
1186 | break; |
1187 | default: | |
1188 | /* We had a real error */ | |
fb14d0d8 JR |
1189 | ret = CMD_ERROR; |
1190 | ERR("%s", lttng_strerror(count)); | |
1191 | goto error_channels; | |
60e835ca | 1192 | break; |
c7d620a2 | 1193 | } |
f3ed775e DG |
1194 | } |
1195 | ||
fb14d0d8 JR |
1196 | if (lttng_opt_mi) { |
1197 | /* Mi print */ | |
1198 | ret = mi_list_channels(channels, count, channel_name); | |
1199 | if (ret) { | |
1200 | ret = CMD_ERROR; | |
1201 | goto error; | |
1202 | } | |
1203 | } else { | |
1204 | /* Pretty print */ | |
1205 | if (channel_name == NULL) { | |
1206 | MSG("Channels:\n-------------"); | |
1207 | } | |
9f19cc17 | 1208 | |
fb14d0d8 JR |
1209 | for (i = 0; i < count; i++) { |
1210 | if (channel_name != NULL) { | |
1211 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1212 | chan_found = 1; | |
1213 | } else { | |
1214 | continue; | |
1215 | } | |
1216 | } | |
1217 | print_channel(&channels[i]); | |
1218 | ||
1219 | /* Listing events per channel */ | |
1220 | ret = list_events(channels[i].name); | |
1221 | if (ret) { | |
1222 | goto error; | |
1223 | } | |
1224 | ||
1225 | if (chan_found) { | |
1226 | break; | |
9f19cc17 DG |
1227 | } |
1228 | } | |
9f19cc17 | 1229 | |
fb14d0d8 JR |
1230 | if (!chan_found && channel_name != NULL) { |
1231 | ret = CMD_ERROR; | |
1232 | ERR("Channel %s not found", channel_name); | |
1233 | goto error; | |
9f19cc17 | 1234 | } |
fb14d0d8 JR |
1235 | } |
1236 | error: | |
1237 | free(channels); | |
9f19cc17 | 1238 | |
fb14d0d8 JR |
1239 | error_channels: |
1240 | return ret; | |
1241 | } | |
1242 | ||
1243 | /* | |
1244 | * Machine interface | |
1245 | * Find the session with session_name as name | |
1246 | * and print his informations. | |
1247 | */ | |
1248 | static int mi_list_session(const char *session_name, | |
1249 | struct lttng_session *sessions, int count) | |
1250 | { | |
1251 | int ret, i; | |
1252 | unsigned int session_found = 0; | |
1253 | ||
1254 | if (session_name == NULL) { | |
1255 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1256 | goto end; | |
1257 | } | |
1258 | ||
1259 | for (i = 0; i < count; i++) { | |
1260 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1261 | /* We need to leave it open to append other informations | |
1262 | * like domain, channel, events etc.*/ | |
1263 | session_found = 1; | |
1264 | ret = mi_lttng_session(writer, &sessions[i], 1); | |
1265 | if (ret) { | |
1266 | goto end; | |
1267 | } | |
9f19cc17 | 1268 | break; |
f3ed775e | 1269 | } |
f3ed775e DG |
1270 | } |
1271 | ||
fb14d0d8 JR |
1272 | if (!session_found) { |
1273 | ERR("Session '%s' not found", session_name); | |
1274 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1275 | goto end; | |
9f19cc17 | 1276 | } |
f3ed775e | 1277 | |
fb14d0d8 JR |
1278 | end: |
1279 | return ret; | |
1280 | } | |
f3ed775e | 1281 | |
fb14d0d8 JR |
1282 | /* |
1283 | * Machine interface | |
1284 | * List all availables session | |
1285 | */ | |
1286 | static int mi_list_sessions(struct lttng_session *sessions, int count) | |
1287 | { | |
1288 | int ret, i; | |
ae856491 | 1289 | |
fb14d0d8 JR |
1290 | /* Opening sessions element */ |
1291 | ret = mi_lttng_sessions_open(writer); | |
1292 | if (ret) { | |
1293 | goto end; | |
1294 | } | |
1295 | ||
1296 | /* Listing sessions */ | |
1297 | for (i = 0; i < count; i++) { | |
1298 | ret = mi_lttng_session(writer, &sessions[i], 0); | |
1299 | if (ret) { | |
1300 | goto end; | |
1301 | } | |
1302 | } | |
1303 | ||
1304 | /* Closing sessions element */ | |
1305 | ret = mi_lttng_writer_close_element(writer); | |
1306 | if (ret) { | |
1307 | goto end; | |
1308 | } | |
1309 | ||
1310 | end: | |
f3ed775e DG |
1311 | return ret; |
1312 | } | |
1313 | ||
1314 | /* | |
9f19cc17 | 1315 | * List available tracing session. List only basic information. |
f3ed775e | 1316 | * |
9f19cc17 | 1317 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 1318 | */ |
9f19cc17 | 1319 | static int list_sessions(const char *session_name) |
f3ed775e | 1320 | { |
fb14d0d8 JR |
1321 | int ret = CMD_SUCCESS; |
1322 | int count, i; | |
9f19cc17 DG |
1323 | unsigned int session_found = 0; |
1324 | struct lttng_session *sessions; | |
1325 | ||
1326 | count = lttng_list_sessions(&sessions); | |
1327 | DBG("Session count %d", count); | |
1328 | if (count < 0) { | |
fb14d0d8 JR |
1329 | ret = CMD_ERROR; |
1330 | ERR("%s", lttng_strerror(count)); | |
d32fb093 | 1331 | goto end; |
9f19cc17 DG |
1332 | } |
1333 | ||
fb14d0d8 JR |
1334 | if (lttng_opt_mi) { |
1335 | /* Mi */ | |
1336 | if (session_name == NULL) { | |
1337 | /* List all session */ | |
1338 | ret = mi_list_sessions(sessions, count); | |
1339 | } else { | |
1340 | /* Note : this return an open session element */ | |
1341 | ret = mi_list_session(session_name, sessions, count); | |
1342 | } | |
1343 | if (ret) { | |
1344 | ret = CMD_ERROR; | |
1345 | goto error; | |
1346 | } | |
1347 | } else { | |
1348 | /* Pretty print */ | |
1349 | if (count == 0) { | |
1350 | MSG("Currently no available tracing session"); | |
fb14d0d8 JR |
1351 | goto end; |
1352 | } | |
9f19cc17 | 1353 | |
fb14d0d8 JR |
1354 | if (session_name == NULL) { |
1355 | MSG("Available tracing sessions:"); | |
1356 | } | |
1357 | ||
1358 | ||
1359 | for (i = 0; i < count; i++) { | |
1360 | if (session_name != NULL) { | |
1361 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1362 | session_found = 1; | |
1363 | MSG("Tracing session %s: [%s%s]", session_name, | |
1364 | active_string(sessions[i].enabled), | |
1365 | snapshot_string(sessions[i].snapshot_mode)); | |
1366 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); | |
1367 | break; | |
1368 | } | |
1369 | } else { | |
1370 | MSG(" %d) %s (%s) [%s%s]", i + 1, | |
1371 | sessions[i].name, sessions[i].path, | |
2cbf8fed DG |
1372 | active_string(sessions[i].enabled), |
1373 | snapshot_string(sessions[i].snapshot_mode)); | |
2f785fe7 DG |
1374 | MSG("%sTrace path: %s", indent4, sessions[i].path); |
1375 | MSG("%sLive timer interval (usec): %u\n", indent4, | |
1376 | sessions[i].live_timer_interval); | |
9f19cc17 | 1377 | } |
fb14d0d8 JR |
1378 | } |
1379 | ||
1380 | if (!session_found && session_name != NULL) { | |
1381 | ERR("Session '%s' not found", session_name); | |
1382 | ret = CMD_ERROR; | |
1383 | goto error; | |
1384 | } | |
1385 | ||
1386 | if (session_name == NULL) { | |
1387 | MSG("\nUse lttng list <session_name> for more details"); | |
9f19cc17 DG |
1388 | } |
1389 | } | |
1390 | ||
fb14d0d8 | 1391 | error: |
9f19cc17 | 1392 | free(sessions); |
fb14d0d8 JR |
1393 | end: |
1394 | return ret; | |
1395 | } | |
9f19cc17 | 1396 | |
fb14d0d8 JR |
1397 | |
1398 | /* | |
1399 | * Machine Interface | |
1400 | * list available domain(s) for a session. | |
1401 | */ | |
1402 | static int mi_list_domains(struct lttng_domain *domains, int count) | |
1403 | { | |
1404 | int i, ret; | |
1405 | /* Open domains element */ | |
1406 | ret = mi_lttng_domains_open(writer); | |
1407 | if (ret) { | |
1408 | goto end; | |
9f19cc17 DG |
1409 | } |
1410 | ||
fb14d0d8 JR |
1411 | for (i = 0; i < count; i++) { |
1412 | ret = mi_lttng_domain(writer, &domains[i] , 0); | |
1413 | if (ret) { | |
1414 | goto end; | |
1415 | } | |
9f19cc17 | 1416 | } |
f3ed775e | 1417 | |
fb14d0d8 JR |
1418 | /* Closing domains element */ |
1419 | ret = mi_lttng_writer_close_element(writer); | |
1420 | if (ret) { | |
1421 | goto end; | |
1422 | } | |
d32fb093 | 1423 | end: |
f3ed775e DG |
1424 | return ret; |
1425 | } | |
f3ed775e DG |
1426 | |
1427 | /* | |
9f19cc17 | 1428 | * List available domain(s) for a session. |
f3ed775e | 1429 | */ |
330be774 | 1430 | static int list_domains(const char *session_name) |
f3ed775e | 1431 | { |
9f19cc17 DG |
1432 | int i, count, ret = CMD_SUCCESS; |
1433 | struct lttng_domain *domains = NULL; | |
1434 | ||
9f19cc17 | 1435 | |
330be774 | 1436 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 | 1437 | if (count < 0) { |
fb14d0d8 JR |
1438 | ret = CMD_ERROR; |
1439 | ERR("%s", lttng_strerror(count)); | |
9f19cc17 DG |
1440 | goto end; |
1441 | } | |
1442 | ||
fb14d0d8 JR |
1443 | if (lttng_opt_mi) { |
1444 | /* Mi output */ | |
1445 | ret = mi_list_domains(domains, count); | |
1446 | if (ret) { | |
1447 | ret = CMD_ERROR; | |
1448 | goto error; | |
1449 | } | |
1450 | } else { | |
1451 | /* Pretty print */ | |
1452 | MSG("Domains:\n-------------"); | |
1453 | if (count == 0) { | |
1454 | MSG(" None"); | |
1455 | goto end; | |
1456 | } | |
1457 | ||
1458 | for (i = 0; i < count; i++) { | |
1459 | switch (domains[i].type) { | |
1460 | case LTTNG_DOMAIN_KERNEL: | |
1461 | MSG(" - Kernel"); | |
1462 | break; | |
1463 | case LTTNG_DOMAIN_UST: | |
1464 | MSG(" - UST global"); | |
1465 | break; | |
1466 | case LTTNG_DOMAIN_JUL: | |
1467 | MSG(" - JUL (Java Util Logging)"); | |
1468 | break; | |
5cdb6027 DG |
1469 | case LTTNG_DOMAIN_LOG4J: |
1470 | MSG(" - LOG4j (Logging for Java)"); | |
1471 | break; | |
fb14d0d8 JR |
1472 | default: |
1473 | break; | |
1474 | } | |
9f19cc17 DG |
1475 | } |
1476 | } | |
1477 | ||
fb14d0d8 | 1478 | error: |
9f19cc17 DG |
1479 | free(domains); |
1480 | ||
fb14d0d8 | 1481 | end: |
9f19cc17 | 1482 | return ret; |
f3ed775e | 1483 | } |
f3ed775e DG |
1484 | |
1485 | /* | |
9f19cc17 | 1486 | * The 'list <options>' first level command |
f3ed775e DG |
1487 | */ |
1488 | int cmd_list(int argc, const char **argv) | |
1489 | { | |
c617c0c6 | 1490 | int opt, ret = CMD_SUCCESS; |
9f19cc17 | 1491 | const char *session_name; |
f3ed775e | 1492 | static poptContext pc; |
9f19cc17 DG |
1493 | struct lttng_domain domain; |
1494 | struct lttng_domain *domains = NULL; | |
f3ed775e | 1495 | |
441c16a7 MD |
1496 | memset(&domain, 0, sizeof(domain)); |
1497 | ||
9f19cc17 | 1498 | if (argc < 1) { |
f3ed775e | 1499 | usage(stderr); |
ca1c3607 | 1500 | ret = CMD_ERROR; |
f3ed775e DG |
1501 | goto end; |
1502 | } | |
1503 | ||
1504 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1505 | poptReadDefaultConfig(pc, 0); | |
1506 | ||
1507 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1508 | switch (opt) { | |
1509 | case OPT_HELP: | |
ca1c3607 | 1510 | usage(stdout); |
f3ed775e | 1511 | goto end; |
eeac7d46 MD |
1512 | case OPT_USERSPACE: |
1513 | opt_userspace = 1; | |
eeac7d46 | 1514 | break; |
679b4943 SM |
1515 | case OPT_LIST_OPTIONS: |
1516 | list_cmd_options(stdout, long_options); | |
679b4943 | 1517 | goto end; |
f3ed775e DG |
1518 | default: |
1519 | usage(stderr); | |
1520 | ret = CMD_UNDEFINED; | |
1521 | goto end; | |
1522 | } | |
1523 | } | |
1524 | ||
fb14d0d8 JR |
1525 | /* Mi check */ |
1526 | if (lttng_opt_mi) { | |
1527 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1528 | if (!writer) { | |
1529 | ret = CMD_ERROR; | |
1530 | goto end; | |
1531 | } | |
1532 | ||
1533 | /* Open command element */ | |
1534 | ret = mi_lttng_writer_command_open(writer, | |
1535 | mi_lttng_element_command_list); | |
1536 | if (ret) { | |
1537 | ret = CMD_ERROR; | |
1538 | goto end; | |
1539 | } | |
1540 | ||
1541 | /* Open output element */ | |
1542 | ret = mi_lttng_writer_open_element(writer, | |
1543 | mi_lttng_element_command_output); | |
1544 | if (ret) { | |
1545 | ret = CMD_ERROR; | |
1546 | goto end; | |
1547 | } | |
1548 | } | |
1549 | ||
9f19cc17 DG |
1550 | /* Get session name (trailing argument) */ |
1551 | session_name = poptGetArg(pc); | |
b551a063 | 1552 | DBG2("Session name: %s", session_name); |
9f19cc17 | 1553 | |
cd80958d DG |
1554 | if (opt_kernel) { |
1555 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
1556 | } else if (opt_userspace) { |
1557 | DBG2("Listing userspace global domain"); | |
1558 | domain.type = LTTNG_DOMAIN_UST; | |
3c6a091f DG |
1559 | } else if (opt_jul) { |
1560 | DBG2("Listing JUL domain"); | |
1561 | domain.type = LTTNG_DOMAIN_JUL; | |
edf60534 | 1562 | } else if (opt_log4j) { |
5cdb6027 | 1563 | domain.type = LTTNG_DOMAIN_LOG4J; |
cd80958d DG |
1564 | } |
1565 | ||
834978fd DG |
1566 | if (!opt_kernel && opt_syscall) { |
1567 | WARN("--syscall will only work with the Kernel domain (-k)"); | |
1568 | ret = CMD_ERROR; | |
1569 | goto end; | |
1570 | } | |
1571 | ||
5cdb6027 | 1572 | if (opt_kernel || opt_userspace || opt_jul || opt_log4j) { |
aa5de748 MD |
1573 | handle = lttng_create_handle(session_name, &domain); |
1574 | if (handle == NULL) { | |
1575 | ret = CMD_FATAL; | |
1576 | goto end; | |
1577 | } | |
cd80958d DG |
1578 | } |
1579 | ||
9f19cc17 | 1580 | if (session_name == NULL) { |
5cdb6027 | 1581 | if (!opt_kernel && !opt_userspace && !opt_jul && !opt_log4j) { |
b551a063 | 1582 | ret = list_sessions(NULL); |
fb14d0d8 | 1583 | if (ret) { |
b551a063 DG |
1584 | goto end; |
1585 | } | |
1586 | } | |
9f19cc17 | 1587 | if (opt_kernel) { |
834978fd DG |
1588 | if (opt_syscall) { |
1589 | ret = list_syscalls(); | |
1590 | if (ret) { | |
1591 | goto end; | |
1592 | } | |
1593 | } else { | |
1594 | ret = list_kernel_events(); | |
1595 | if (ret) { | |
1596 | goto end; | |
1597 | } | |
9f19cc17 | 1598 | } |
b551a063 DG |
1599 | } |
1600 | if (opt_userspace) { | |
f37d259d MD |
1601 | if (opt_fields) { |
1602 | ret = list_ust_event_fields(); | |
1603 | } else { | |
1604 | ret = list_ust_events(); | |
1605 | } | |
fb14d0d8 | 1606 | if (ret) { |
9f19cc17 DG |
1607 | goto end; |
1608 | } | |
1609 | } | |
5cdb6027 DG |
1610 | if (opt_jul || opt_log4j) { |
1611 | ret = list_agent_events(); | |
fb14d0d8 | 1612 | if (ret) { |
3c6a091f DG |
1613 | goto end; |
1614 | } | |
1615 | } | |
9f19cc17 DG |
1616 | } else { |
1617 | /* List session attributes */ | |
fb14d0d8 JR |
1618 | if (lttng_opt_mi) { |
1619 | /* Open element sessions | |
1620 | * Present for xml consistency */ | |
1621 | ret = mi_lttng_sessions_open(writer); | |
1622 | if (ret) { | |
1623 | goto end; | |
1624 | } | |
1625 | } | |
1626 | /* MI: the ouptut of list_sessions is an unclosed session element */ | |
9f19cc17 | 1627 | ret = list_sessions(session_name); |
fb14d0d8 | 1628 | if (ret) { |
9f19cc17 DG |
1629 | goto end; |
1630 | } | |
1631 | ||
1632 | /* Domain listing */ | |
1633 | if (opt_domain) { | |
330be774 | 1634 | ret = list_domains(session_name); |
9f19cc17 DG |
1635 | goto end; |
1636 | } | |
1637 | ||
fb14d0d8 | 1638 | /* Channel listing */ |
1c3de747 | 1639 | if (opt_kernel || opt_userspace) { |
fb14d0d8 JR |
1640 | if (lttng_opt_mi) { |
1641 | /* Add of domains and domain element for xml | |
1642 | * consistency and validation | |
1643 | */ | |
1644 | ret = mi_lttng_domains_open(writer); | |
1645 | if (ret) { | |
1646 | goto end; | |
1647 | } | |
1648 | ||
1649 | /* Open domain and leave it open for | |
1650 | * nested channels printing */ | |
1651 | ret = mi_lttng_domain(writer, &domain, 1); | |
1652 | if (ret) { | |
1653 | goto end; | |
1654 | } | |
1655 | ||
1656 | } | |
1657 | ||
cd80958d | 1658 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1659 | if (ret) { |
1660 | goto end; | |
1661 | } | |
1662 | ||
1663 | if (lttng_opt_mi) { | |
1664 | /* Close domain and domain element */ | |
1665 | ret = mi_lttng_close_multi_element(writer, 2); | |
1666 | } | |
1667 | if (ret) { | |
9f19cc17 DG |
1668 | goto end; |
1669 | } | |
fb14d0d8 JR |
1670 | |
1671 | ||
9f19cc17 | 1672 | } else { |
c617c0c6 MD |
1673 | int i, nb_domain; |
1674 | ||
9f19cc17 | 1675 | /* We want all domain(s) */ |
330be774 | 1676 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 1677 | if (nb_domain < 0) { |
fb14d0d8 JR |
1678 | ret = CMD_ERROR; |
1679 | ERR("%s", lttng_strerror(nb_domain)); | |
9f19cc17 DG |
1680 | goto end; |
1681 | } | |
1682 | ||
fb14d0d8 JR |
1683 | if (lttng_opt_mi) { |
1684 | ret = mi_lttng_domains_open(writer); | |
1685 | if (ret) { | |
1686 | ret = CMD_ERROR; | |
1687 | goto end; | |
1688 | } | |
1689 | } | |
1690 | ||
b551a063 | 1691 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
1692 | switch (domains[i].type) { |
1693 | case LTTNG_DOMAIN_KERNEL: | |
1694 | MSG("=== Domain: Kernel ===\n"); | |
1695 | break; | |
b551a063 DG |
1696 | case LTTNG_DOMAIN_UST: |
1697 | MSG("=== Domain: UST global ===\n"); | |
88c5f0d8 DG |
1698 | MSG("Buffer type: %s\n", |
1699 | domains[i].buf_type == | |
1700 | LTTNG_BUFFER_PER_PID ? "per PID" : "per UID"); | |
b551a063 | 1701 | break; |
3c6a091f DG |
1702 | case LTTNG_DOMAIN_JUL: |
1703 | MSG("=== Domain: JUL (Java Util Logging) ===\n"); | |
1704 | break; | |
5cdb6027 DG |
1705 | case LTTNG_DOMAIN_LOG4J: |
1706 | MSG("=== Domain: LOG4j (Logging for Java) ===\n"); | |
1707 | break; | |
9f19cc17 DG |
1708 | default: |
1709 | MSG("=== Domain: Unimplemented ===\n"); | |
1710 | break; | |
1711 | } | |
1712 | ||
fb14d0d8 JR |
1713 | if (lttng_opt_mi) { |
1714 | ret = mi_lttng_domain(writer, &domains[i], 1); | |
1715 | if (ret) { | |
1716 | ret = CMD_ERROR; | |
1717 | goto end; | |
1718 | } | |
1719 | } | |
1720 | ||
cd80958d | 1721 | /* Clean handle before creating a new one */ |
aa5de748 MD |
1722 | if (handle) { |
1723 | lttng_destroy_handle(handle); | |
1724 | } | |
cd80958d DG |
1725 | |
1726 | handle = lttng_create_handle(session_name, &domains[i]); | |
1727 | if (handle == NULL) { | |
ca1c3607 | 1728 | ret = CMD_FATAL; |
cd80958d DG |
1729 | goto end; |
1730 | } | |
1731 | ||
5cdb6027 DG |
1732 | if (domains[i].type == LTTNG_DOMAIN_JUL || |
1733 | domains[i].type == LTTNG_DOMAIN_LOG4J) { | |
1734 | ret = list_session_agent_events(); | |
fb14d0d8 | 1735 | if (ret) { |
3c6a091f DG |
1736 | goto end; |
1737 | } | |
1738 | continue; | |
1739 | } | |
1740 | ||
cd80958d | 1741 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1742 | if (ret) { |
1743 | goto end; | |
1744 | } | |
1745 | ||
1746 | if (lttng_opt_mi) { | |
1747 | /* Close domain element */ | |
1748 | ret = mi_lttng_writer_close_element(writer); | |
1749 | if (ret) { | |
1750 | ret = CMD_ERROR; | |
1751 | goto end; | |
1752 | } | |
1753 | } | |
1754 | ||
1755 | } | |
1756 | if (lttng_opt_mi) { | |
1757 | /* Close the domains, session and sessions element */ | |
1758 | ret = mi_lttng_close_multi_element(writer, 3); | |
1759 | if (ret) { | |
1760 | ret = CMD_ERROR; | |
9f19cc17 DG |
1761 | goto end; |
1762 | } | |
1763 | } | |
1764 | } | |
f3ed775e DG |
1765 | } |
1766 | ||
fb14d0d8 JR |
1767 | /* Mi closing */ |
1768 | if (lttng_opt_mi) { | |
1769 | /* Close output element */ | |
1770 | ret = mi_lttng_writer_close_element(writer); | |
1771 | if (ret) { | |
1772 | ret = CMD_ERROR; | |
1773 | goto end; | |
1774 | } | |
1775 | ||
1776 | /* Command element close */ | |
1777 | ret = mi_lttng_writer_command_close(writer); | |
1778 | if (ret) { | |
1779 | ret = CMD_ERROR; | |
1780 | goto end; | |
1781 | } | |
1782 | } | |
f3ed775e | 1783 | end: |
fb14d0d8 JR |
1784 | /* Mi clean-up */ |
1785 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1786 | /* Preserve original error code */ | |
1787 | ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL; | |
1788 | } | |
1789 | ||
0e428499 | 1790 | free(domains); |
aa5de748 MD |
1791 | if (handle) { |
1792 | lttng_destroy_handle(handle); | |
1793 | } | |
cd80958d | 1794 | |
ca1c3607 | 1795 | poptFreeContext(pc); |
f3ed775e DG |
1796 | return ret; |
1797 | } |