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; |
d78d6610 DG |
37 | #if 0 |
38 | /* Not implemented yet */ | |
39 | static char *opt_cmd_name; | |
40 | static pid_t opt_pid; | |
41 | #endif | |
9f19cc17 DG |
42 | |
43 | const char *indent4 = " "; | |
44 | const char *indent6 = " "; | |
45 | const char *indent8 = " "; | |
f3ed775e DG |
46 | |
47 | enum { | |
48 | OPT_HELP = 1, | |
eeac7d46 | 49 | OPT_USERSPACE, |
679b4943 | 50 | OPT_LIST_OPTIONS, |
f3ed775e DG |
51 | }; |
52 | ||
cd80958d | 53 | static struct lttng_handle *handle; |
fb14d0d8 | 54 | static struct mi_writer *writer; |
cd80958d | 55 | |
f3ed775e DG |
56 | static struct poptOption long_options[] = { |
57 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
58 | {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, | |
9f19cc17 | 59 | {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, |
3c6a091f | 60 | {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, |
5cdb6027 | 61 | {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, |
d78d6610 DG |
62 | #if 0 |
63 | /* Not implemented yet */ | |
64 | {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, | |
65 | {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, | |
66 | #else | |
67 | {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, | |
68 | #endif | |
9f19cc17 DG |
69 | {"channel", 'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0}, |
70 | {"domain", 'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0}, | |
f37d259d | 71 | {"fields", 'f', POPT_ARG_VAL, &opt_fields, 1, 0, 0}, |
679b4943 | 72 | {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, |
f3ed775e DG |
73 | {0, 0, 0, 0, 0, 0, 0} |
74 | }; | |
75 | ||
76 | /* | |
77 | * usage | |
78 | */ | |
79 | static void usage(FILE *ofp) | |
80 | { | |
747361fe | 81 | fprintf(ofp, "usage: lttng list [OPTIONS] [SESSION [SESSION OPTIONS]]\n"); |
9f19cc17 DG |
82 | fprintf(ofp, "\n"); |
83 | fprintf(ofp, "With no arguments, list available tracing session(s)\n"); | |
84 | fprintf(ofp, "\n"); | |
27221701 DG |
85 | fprintf(ofp, "Without a session, -k lists available kernel events\n"); |
86 | fprintf(ofp, "Without a session, -u lists available userspace events\n"); | |
9f19cc17 DG |
87 | fprintf(ofp, "\n"); |
88 | fprintf(ofp, " -h, --help Show this help\n"); | |
27221701 | 89 | fprintf(ofp, " --list-options Simple listing of options\n"); |
9f19cc17 DG |
90 | fprintf(ofp, " -k, --kernel Select kernel domain\n"); |
91 | fprintf(ofp, " -u, --userspace Select user-space domain.\n"); | |
3c6a091f | 92 | fprintf(ofp, " -j, --jul Apply for Java application using JUL\n"); |
f37d259d | 93 | fprintf(ofp, " -f, --fields List event fields.\n"); |
d78d6610 | 94 | #if 0 |
9f19cc17 | 95 | fprintf(ofp, " -p, --pid PID List user-space events by PID\n"); |
d78d6610 | 96 | #endif |
f3ed775e | 97 | fprintf(ofp, "\n"); |
27221701 | 98 | fprintf(ofp, "Session Options:\n"); |
9f19cc17 DG |
99 | fprintf(ofp, " -c, --channel NAME List details of a channel\n"); |
100 | fprintf(ofp, " -d, --domain List available domain(s)\n"); | |
f3ed775e DG |
101 | fprintf(ofp, "\n"); |
102 | } | |
103 | ||
104 | /* | |
9f19cc17 | 105 | * Get command line from /proc for a specific pid. |
f3ed775e | 106 | * |
9f19cc17 DG |
107 | * On success, return an allocated string pointer to the proc cmdline. |
108 | * On error, return NULL. | |
f3ed775e DG |
109 | */ |
110 | static char *get_cmdline_by_pid(pid_t pid) | |
111 | { | |
112 | int ret; | |
1ad31aec | 113 | FILE *fp = NULL; |
f3ed775e | 114 | char *cmdline = NULL; |
5f1abdd9 | 115 | char path[20]; /* Can't go bigger than /proc/65535/cmdline */ |
f3ed775e DG |
116 | |
117 | snprintf(path, sizeof(path), "/proc/%d/cmdline", pid); | |
118 | fp = fopen(path, "r"); | |
119 | if (fp == NULL) { | |
120 | goto end; | |
121 | } | |
122 | ||
123 | /* Caller must free() *cmdline */ | |
124 | cmdline = malloc(PATH_MAX); | |
f6962219 JG |
125 | if (!cmdline) { |
126 | perror("malloc cmdline"); | |
127 | goto end; | |
128 | } | |
f3ed775e | 129 | ret = fread(cmdline, 1, PATH_MAX, fp); |
f40799e8 DG |
130 | if (ret < 0) { |
131 | perror("fread proc list"); | |
132 | } | |
f3ed775e DG |
133 | |
134 | end: | |
1ad31aec DG |
135 | if (fp) { |
136 | fclose(fp); | |
137 | } | |
f3ed775e DG |
138 | return cmdline; |
139 | } | |
b551a063 | 140 | |
464dd62d MD |
141 | static |
142 | const char *active_string(int value) | |
143 | { | |
144 | switch (value) { | |
2cbf8fed DG |
145 | case 0: return "inactive"; |
146 | case 1: return "active"; | |
464dd62d MD |
147 | case -1: return ""; |
148 | default: return NULL; | |
149 | } | |
150 | } | |
151 | ||
2cbf8fed DG |
152 | static const char *snapshot_string(int value) |
153 | { | |
154 | switch (value) { | |
155 | case 1: | |
156 | return " snapshot"; | |
157 | default: | |
158 | return ""; | |
159 | } | |
160 | } | |
161 | ||
464dd62d MD |
162 | static |
163 | const char *enabled_string(int value) | |
164 | { | |
165 | switch (value) { | |
b09f0429 MD |
166 | case 0: return " [disabled]"; |
167 | case 1: return " [enabled]"; | |
464dd62d MD |
168 | case -1: return ""; |
169 | default: return NULL; | |
170 | } | |
171 | } | |
172 | ||
fceb65df MD |
173 | static |
174 | const char *filter_string(int value) | |
175 | { | |
176 | switch (value) { | |
177 | case 1: return " [with filter]"; | |
178 | default: return ""; | |
179 | } | |
180 | } | |
181 | ||
4634f12e JI |
182 | static |
183 | const char *exclusion_string(int value) | |
184 | { | |
185 | switch (value) { | |
186 | case 1: return " [has exclusions]"; | |
187 | default: return ""; | |
188 | } | |
189 | } | |
190 | ||
1f0e17de DG |
191 | static const char *logleveltype_string(enum lttng_loglevel_type value) |
192 | { | |
193 | switch (value) { | |
af6bce80 DG |
194 | case LTTNG_EVENT_LOGLEVEL_ALL: |
195 | return ":"; | |
1f0e17de | 196 | case LTTNG_EVENT_LOGLEVEL_RANGE: |
af6bce80 | 197 | return " <="; |
1f0e17de | 198 | case LTTNG_EVENT_LOGLEVEL_SINGLE: |
af6bce80 | 199 | return " =="; |
1f0e17de | 200 | default: |
af6bce80 | 201 | return " <<TYPE UNKN>>"; |
1f0e17de DG |
202 | } |
203 | } | |
204 | ||
b551a063 DG |
205 | /* |
206 | * Pretty print single event. | |
207 | */ | |
208 | static void print_events(struct lttng_event *event) | |
209 | { | |
210 | switch (event->type) { | |
211 | case LTTNG_EVENT_TRACEPOINT: | |
e4baff1e | 212 | { |
8b703175 | 213 | if (event->loglevel != -1) { |
af6bce80 | 214 | MSG("%s%s (loglevel%s %s (%d)) (type: tracepoint)%s%s%s", |
8b703175 | 215 | indent6, |
81afa345 | 216 | event->name, |
1f0e17de | 217 | logleveltype_string(event->loglevel_type), |
fb14d0d8 | 218 | mi_lttng_loglevel_string(event->loglevel), |
8b703175 | 219 | event->loglevel, |
fceb65df | 220 | enabled_string(event->enabled), |
4634f12e | 221 | exclusion_string(event->exclusion), |
fceb65df | 222 | filter_string(event->filter)); |
8b703175 | 223 | } else { |
4634f12e | 224 | MSG("%s%s (type: tracepoint)%s%s%s", |
8b703175 MD |
225 | indent6, |
226 | event->name, | |
fceb65df | 227 | enabled_string(event->enabled), |
4634f12e | 228 | exclusion_string(event->exclusion), |
fceb65df | 229 | filter_string(event->filter)); |
8b703175 | 230 | } |
b551a063 | 231 | break; |
e4baff1e | 232 | } |
1896972b DG |
233 | case LTTNG_EVENT_FUNCTION: |
234 | MSG("%s%s (type: function)%s%s", indent6, | |
235 | event->name, enabled_string(event->enabled), | |
236 | filter_string(event->filter)); | |
237 | if (event->attr.probe.addr != 0) { | |
238 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
239 | } else { | |
240 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
241 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
242 | } | |
243 | break; | |
b551a063 | 244 | case LTTNG_EVENT_PROBE: |
fceb65df MD |
245 | MSG("%s%s (type: probe)%s%s", indent6, |
246 | event->name, enabled_string(event->enabled), | |
247 | filter_string(event->filter)); | |
b551a063 DG |
248 | if (event->attr.probe.addr != 0) { |
249 | MSG("%saddr: 0x%" PRIx64, indent8, event->attr.probe.addr); | |
250 | } else { | |
251 | MSG("%soffset: 0x%" PRIx64, indent8, event->attr.probe.offset); | |
252 | MSG("%ssymbol: %s", indent8, event->attr.probe.symbol_name); | |
253 | } | |
254 | break; | |
b551a063 | 255 | case LTTNG_EVENT_FUNCTION_ENTRY: |
fceb65df MD |
256 | MSG("%s%s (type: function)%s%s", indent6, |
257 | event->name, enabled_string(event->enabled), | |
258 | filter_string(event->filter)); | |
b551a063 DG |
259 | MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); |
260 | break; | |
261 | case LTTNG_EVENT_SYSCALL: | |
fceb65df MD |
262 | MSG("%ssyscalls (type: syscall)%s%s", indent6, |
263 | enabled_string(event->enabled), | |
264 | filter_string(event->filter)); | |
b551a063 DG |
265 | break; |
266 | case LTTNG_EVENT_NOOP: | |
fceb65df MD |
267 | MSG("%s (type: noop)%s%s", indent6, |
268 | enabled_string(event->enabled), | |
269 | filter_string(event->filter)); | |
b551a063 DG |
270 | break; |
271 | case LTTNG_EVENT_ALL: | |
272 | /* We should never have "all" events in list. */ | |
273 | assert(0); | |
274 | break; | |
275 | } | |
276 | } | |
277 | ||
f37d259d MD |
278 | static const char *field_type(struct lttng_event_field *field) |
279 | { | |
280 | switch(field->type) { | |
281 | case LTTNG_EVENT_FIELD_INTEGER: | |
282 | return "integer"; | |
283 | case LTTNG_EVENT_FIELD_ENUM: | |
284 | return "enum"; | |
285 | case LTTNG_EVENT_FIELD_FLOAT: | |
286 | return "float"; | |
287 | case LTTNG_EVENT_FIELD_STRING: | |
288 | return "string"; | |
289 | case LTTNG_EVENT_FIELD_OTHER: | |
290 | default: /* fall-through */ | |
291 | return "unknown"; | |
292 | } | |
293 | } | |
294 | ||
295 | /* | |
296 | * Pretty print single event fields. | |
297 | */ | |
298 | static void print_event_field(struct lttng_event_field *field) | |
299 | { | |
300 | if (!field->field_name[0]) { | |
301 | return; | |
302 | } | |
d8fbe2a9 | 303 | MSG("%sfield: %s (%s)%s", indent8, field->field_name, |
45a32634 | 304 | field_type(field), field->nowrite ? " [no write]" : ""); |
f37d259d MD |
305 | } |
306 | ||
fb14d0d8 JR |
307 | /* |
308 | * Machine interface | |
309 | * Jul and ust event listing | |
310 | */ | |
5cdb6027 | 311 | static int mi_list_agent_ust_events(struct lttng_event *events, int count, |
fb14d0d8 JR |
312 | struct lttng_domain *domain) |
313 | { | |
314 | int ret, i; | |
315 | pid_t cur_pid = 0; | |
316 | char *cmdline = NULL; | |
317 | int pid_element_open = 0; | |
318 | ||
319 | /* Open domains element */ | |
320 | ret = mi_lttng_domains_open(writer); | |
321 | if (ret) { | |
322 | goto end; | |
323 | } | |
324 | ||
325 | /* Write domain */ | |
326 | ret = mi_lttng_domain(writer, domain, 1); | |
327 | if (ret) { | |
328 | goto end; | |
329 | } | |
330 | ||
331 | /* Open pids element */ | |
332 | ret = mi_lttng_pids_open(writer); | |
333 | if (ret) { | |
334 | goto end; | |
335 | } | |
336 | ||
337 | for (i = 0; i < count; i++) { | |
338 | if (cur_pid != events[i].pid) { | |
339 | if (pid_element_open) { | |
340 | /* Close the previous events and pid element */ | |
341 | ret = mi_lttng_close_multi_element(writer, 2); | |
342 | if (ret) { | |
343 | goto end; | |
344 | } | |
345 | pid_element_open = 0; | |
346 | } | |
347 | ||
348 | cur_pid = events[i].pid; | |
349 | cmdline = get_cmdline_by_pid(cur_pid); | |
350 | if (!cmdline) { | |
351 | ret = CMD_ERROR; | |
352 | goto end; | |
353 | } | |
354 | ||
355 | if (!pid_element_open) { | |
356 | /* Open and write a pid element */ | |
357 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
358 | if (ret) { | |
359 | goto error; | |
360 | } | |
361 | ||
362 | /* Open events element */ | |
363 | ret = mi_lttng_events_open(writer); | |
364 | if (ret) { | |
365 | goto error; | |
366 | } | |
367 | ||
368 | pid_element_open = 1; | |
369 | } | |
370 | free(cmdline); | |
371 | } | |
372 | ||
373 | /* Write an event */ | |
374 | ret = mi_lttng_event(writer, &events[i], 0); | |
375 | if (ret) { | |
376 | goto end; | |
377 | } | |
378 | } | |
379 | ||
380 | /* Close pids */ | |
381 | ret = mi_lttng_writer_close_element(writer); | |
382 | if (ret) { | |
383 | goto end; | |
384 | } | |
385 | ||
386 | /* Close domain, domains */ | |
387 | ret = mi_lttng_close_multi_element(writer, 2); | |
388 | end: | |
389 | return ret; | |
390 | error: | |
391 | free(cmdline); | |
392 | return ret; | |
393 | } | |
394 | ||
5cdb6027 | 395 | static int list_agent_events(void) |
3c6a091f | 396 | { |
fb14d0d8 | 397 | int i, size, ret = CMD_SUCCESS; |
3c6a091f DG |
398 | struct lttng_domain domain; |
399 | struct lttng_handle *handle; | |
400 | struct lttng_event *event_list; | |
401 | pid_t cur_pid = 0; | |
402 | char *cmdline = NULL; | |
5cdb6027 | 403 | const char *agent_domain_str; |
3c6a091f DG |
404 | |
405 | memset(&domain, 0, sizeof(domain)); | |
5cdb6027 DG |
406 | if (opt_jul) { |
407 | domain.type = LTTNG_DOMAIN_JUL; | |
408 | } else if (opt_log4j) { | |
409 | domain.type = LTTNG_DOMAIN_LOG4J; | |
410 | } | |
411 | ||
412 | agent_domain_str = get_domain_str(domain.type); | |
413 | ||
414 | DBG("Getting %s tracing events", agent_domain_str); | |
3c6a091f DG |
415 | |
416 | handle = lttng_create_handle(NULL, &domain); | |
417 | if (handle == NULL) { | |
fb14d0d8 JR |
418 | ret = CMD_ERROR; |
419 | goto end; | |
3c6a091f DG |
420 | } |
421 | ||
422 | size = lttng_list_tracepoints(handle, &event_list); | |
423 | if (size < 0) { | |
5cdb6027 DG |
424 | ERR("Unable to list %s events: %s", agent_domain_str, |
425 | lttng_strerror(size)); | |
fb14d0d8 JR |
426 | ret = CMD_ERROR; |
427 | goto end; | |
3c6a091f DG |
428 | } |
429 | ||
fb14d0d8 JR |
430 | if (lttng_opt_mi) { |
431 | /* Mi print */ | |
5cdb6027 | 432 | ret = mi_list_agent_ust_events(event_list, size, &domain); |
fb14d0d8 JR |
433 | if (ret) { |
434 | ret = CMD_ERROR; | |
435 | goto error; | |
3c6a091f | 436 | } |
fb14d0d8 JR |
437 | } else { |
438 | /* Pretty print */ | |
5cdb6027 DG |
439 | MSG("%s events (Logger name):\n-------------------------", |
440 | agent_domain_str); | |
3c6a091f | 441 | |
fb14d0d8 JR |
442 | if (size == 0) { |
443 | MSG("None"); | |
444 | } | |
3c6a091f | 445 | |
fb14d0d8 JR |
446 | for (i = 0; i < size; i++) { |
447 | if (cur_pid != event_list[i].pid) { | |
448 | cur_pid = event_list[i].pid; | |
449 | cmdline = get_cmdline_by_pid(cur_pid); | |
450 | if (cmdline == NULL) { | |
451 | ret = CMD_ERROR; | |
452 | goto error; | |
453 | } | |
454 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
455 | free(cmdline); | |
456 | } | |
457 | MSG("%s- %s", indent6, event_list[i].name); | |
458 | } | |
3c6a091f | 459 | |
fb14d0d8 JR |
460 | MSG(""); |
461 | } | |
3c6a091f DG |
462 | |
463 | error: | |
fb14d0d8 JR |
464 | free(event_list); |
465 | end: | |
3c6a091f | 466 | lttng_destroy_handle(handle); |
fb14d0d8 | 467 | return ret; |
3c6a091f DG |
468 | } |
469 | ||
b551a063 DG |
470 | /* |
471 | * Ask session daemon for all user space tracepoints available. | |
472 | */ | |
473 | static int list_ust_events(void) | |
474 | { | |
fb14d0d8 | 475 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
476 | struct lttng_domain domain; |
477 | struct lttng_handle *handle; | |
478 | struct lttng_event *event_list; | |
479 | pid_t cur_pid = 0; | |
ea5cbc00 | 480 | char *cmdline = NULL; |
b551a063 | 481 | |
441c16a7 MD |
482 | memset(&domain, 0, sizeof(domain)); |
483 | ||
b551a063 DG |
484 | DBG("Getting UST tracing events"); |
485 | ||
486 | domain.type = LTTNG_DOMAIN_UST; | |
487 | ||
488 | handle = lttng_create_handle(NULL, &domain); | |
489 | if (handle == NULL) { | |
fb14d0d8 JR |
490 | ret = CMD_ERROR; |
491 | goto end; | |
b551a063 DG |
492 | } |
493 | ||
494 | size = lttng_list_tracepoints(handle, &event_list); | |
495 | if (size < 0) { | |
60e835ca | 496 | ERR("Unable to list UST events: %s", lttng_strerror(size)); |
fb14d0d8 JR |
497 | ret = CMD_ERROR; |
498 | goto error; | |
b551a063 DG |
499 | } |
500 | ||
fb14d0d8 JR |
501 | if (lttng_opt_mi) { |
502 | /* Mi print */ | |
5cdb6027 | 503 | ret = mi_list_agent_ust_events(event_list, size, &domain); |
fb14d0d8 JR |
504 | } else { |
505 | /* Pretty print */ | |
506 | MSG("UST events:\n-------------"); | |
507 | ||
508 | if (size == 0) { | |
509 | MSG("None"); | |
510 | } | |
511 | ||
512 | for (i = 0; i < size; i++) { | |
513 | if (cur_pid != event_list[i].pid) { | |
514 | cur_pid = event_list[i].pid; | |
515 | cmdline = get_cmdline_by_pid(cur_pid); | |
516 | if (cmdline == NULL) { | |
517 | ret = CMD_ERROR; | |
518 | goto error; | |
519 | } | |
520 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
521 | free(cmdline); | |
522 | } | |
523 | print_events(&event_list[i]); | |
524 | } | |
b551a063 | 525 | |
fb14d0d8 | 526 | MSG(""); |
b551a063 DG |
527 | } |
528 | ||
fb14d0d8 JR |
529 | error: |
530 | free(event_list); | |
531 | end: | |
532 | lttng_destroy_handle(handle); | |
533 | return ret; | |
534 | } | |
535 | ||
536 | /* | |
537 | * Machine interface | |
538 | * List all ust event with their fields | |
539 | */ | |
540 | static int mi_list_ust_event_fields(struct lttng_event_field *fields, int count, | |
541 | struct lttng_domain *domain) | |
542 | { | |
543 | int ret, i; | |
544 | pid_t cur_pid = 0; | |
545 | char *cmdline = NULL; | |
546 | int pid_element_open = 0; | |
547 | int event_element_open = 0; | |
548 | struct lttng_event cur_event; | |
549 | ||
550 | /* Open domains element */ | |
551 | ret = mi_lttng_domains_open(writer); | |
552 | if (ret) { | |
553 | goto end; | |
554 | } | |
555 | ||
556 | /* Write domain */ | |
557 | ret = mi_lttng_domain(writer, domain, 1); | |
558 | if (ret) { | |
559 | goto end; | |
560 | } | |
561 | ||
562 | /* Open pids element */ | |
563 | ret = mi_lttng_pids_open(writer); | |
564 | if (ret) { | |
565 | goto end; | |
566 | } | |
567 | ||
568 | for (i = 0; i < count; i++) { | |
569 | if (cur_pid != fields[i].event.pid) { | |
570 | if (pid_element_open) { | |
571 | if (event_element_open) { | |
485ca16f DG |
572 | |
573 | /* Close the previous field element and event. */ | |
fb14d0d8 JR |
574 | ret = mi_lttng_close_multi_element(writer, 2); |
575 | if (ret) { | |
576 | goto end; | |
577 | } | |
578 | event_element_open = 0; | |
579 | } | |
580 | /* Close the previous events, pid element */ | |
581 | ret = mi_lttng_close_multi_element(writer, 2); | |
582 | if (ret) { | |
583 | goto end; | |
584 | } | |
585 | pid_element_open = 0; | |
586 | } | |
587 | ||
588 | cur_pid = fields[i].event.pid; | |
ea5cbc00 | 589 | cmdline = get_cmdline_by_pid(cur_pid); |
fb14d0d8 JR |
590 | if (!pid_element_open) { |
591 | /* Open and write a pid element */ | |
592 | ret = mi_lttng_pid(writer, cur_pid, cmdline, 1); | |
593 | if (ret) { | |
594 | goto error; | |
595 | } | |
596 | ||
597 | /* Open events element */ | |
598 | ret = mi_lttng_events_open(writer); | |
599 | if (ret) { | |
600 | goto error; | |
601 | } | |
602 | pid_element_open = 1; | |
603 | } | |
ea5cbc00 | 604 | free(cmdline); |
fb14d0d8 JR |
605 | /* Wipe current event since we are about to print a new PID. */ |
606 | memset(&cur_event, 0, sizeof(cur_event)); | |
b551a063 | 607 | } |
b551a063 | 608 | |
fb14d0d8 JR |
609 | if (strcmp(cur_event.name, fields[i].event.name) != 0) { |
610 | if (event_element_open) { | |
611 | /* Close the previous fields element and the previous event */ | |
612 | ret = mi_lttng_close_multi_element(writer, 2); | |
613 | if (ret) { | |
614 | goto end; | |
615 | } | |
616 | event_element_open = 0; | |
617 | } | |
618 | ||
619 | memcpy(&cur_event, &fields[i].event, | |
620 | sizeof(cur_event)); | |
b551a063 | 621 | |
fb14d0d8 JR |
622 | if (!event_element_open) { |
623 | /* Open and write the event */ | |
624 | ret = mi_lttng_event(writer, &cur_event, 1); | |
625 | if (ret) { | |
626 | goto end; | |
627 | } | |
628 | ||
629 | /* Open a fields element */ | |
630 | ret = mi_lttng_event_fields_open(writer); | |
631 | if (ret) { | |
632 | goto end; | |
633 | } | |
634 | event_element_open = 1; | |
635 | } | |
636 | } | |
b551a063 | 637 | |
fb14d0d8 JR |
638 | /* Print the event_field */ |
639 | ret = mi_lttng_event_field(writer, &fields[i]); | |
640 | if (ret) { | |
641 | goto end; | |
642 | } | |
643 | } | |
b551a063 | 644 | |
fb14d0d8 JR |
645 | /* Close pids, domain, domains */ |
646 | ret = mi_lttng_close_multi_element(writer, 3); | |
647 | end: | |
648 | return ret; | |
b551a063 | 649 | error: |
fb14d0d8 JR |
650 | free(cmdline); |
651 | return ret; | |
b551a063 | 652 | } |
f3ed775e | 653 | |
f37d259d MD |
654 | /* |
655 | * Ask session daemon for all user space tracepoint fields available. | |
656 | */ | |
657 | static int list_ust_event_fields(void) | |
658 | { | |
fb14d0d8 | 659 | int i, size, ret = CMD_SUCCESS; |
f37d259d MD |
660 | struct lttng_domain domain; |
661 | struct lttng_handle *handle; | |
662 | struct lttng_event_field *event_field_list; | |
663 | pid_t cur_pid = 0; | |
ea5cbc00 CB |
664 | char *cmdline = NULL; |
665 | ||
f37d259d MD |
666 | struct lttng_event cur_event; |
667 | ||
668 | memset(&domain, 0, sizeof(domain)); | |
669 | memset(&cur_event, 0, sizeof(cur_event)); | |
670 | ||
671 | DBG("Getting UST tracing event fields"); | |
672 | ||
673 | domain.type = LTTNG_DOMAIN_UST; | |
674 | ||
675 | handle = lttng_create_handle(NULL, &domain); | |
676 | if (handle == NULL) { | |
fb14d0d8 JR |
677 | ret = CMD_ERROR; |
678 | goto end; | |
f37d259d MD |
679 | } |
680 | ||
681 | size = lttng_list_tracepoint_fields(handle, &event_field_list); | |
682 | if (size < 0) { | |
60e835ca | 683 | ERR("Unable to list UST event fields: %s", lttng_strerror(size)); |
fb14d0d8 JR |
684 | ret = CMD_ERROR; |
685 | goto end; | |
f37d259d MD |
686 | } |
687 | ||
fb14d0d8 JR |
688 | if (lttng_opt_mi) { |
689 | /* Mi print */ | |
690 | ret = mi_list_ust_event_fields(event_field_list, size, &domain); | |
691 | if (ret) { | |
692 | ret = CMD_ERROR; | |
693 | goto error; | |
694 | } | |
695 | } else { | |
696 | /* Pretty print */ | |
697 | MSG("UST events:\n-------------"); | |
f37d259d | 698 | |
fb14d0d8 JR |
699 | if (size == 0) { |
700 | MSG("None"); | |
f37d259d | 701 | } |
fb14d0d8 JR |
702 | |
703 | for (i = 0; i < size; i++) { | |
704 | if (cur_pid != event_field_list[i].event.pid) { | |
705 | cur_pid = event_field_list[i].event.pid; | |
706 | cmdline = get_cmdline_by_pid(cur_pid); | |
707 | if (cmdline == NULL) { | |
708 | ret = CMD_ERROR; | |
709 | goto error; | |
710 | } | |
711 | MSG("\nPID: %d - Name: %s", cur_pid, cmdline); | |
712 | free(cmdline); | |
713 | /* Wipe current event since we are about to print a new PID. */ | |
714 | memset(&cur_event, 0, sizeof(cur_event)); | |
715 | } | |
716 | if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) { | |
717 | print_events(&event_field_list[i].event); | |
718 | memcpy(&cur_event, &event_field_list[i].event, | |
719 | sizeof(cur_event)); | |
720 | } | |
721 | print_event_field(&event_field_list[i]); | |
f37d259d | 722 | } |
f37d259d | 723 | |
fb14d0d8 JR |
724 | MSG(""); |
725 | } | |
f37d259d | 726 | |
fb14d0d8 | 727 | error: |
f37d259d | 728 | free(event_field_list); |
fb14d0d8 | 729 | end: |
f37d259d | 730 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
731 | return ret; |
732 | } | |
f37d259d | 733 | |
fb14d0d8 JR |
734 | /* |
735 | * Machine interface | |
736 | * Print a list of kernel events | |
737 | */ | |
738 | static int mi_list_kernel_events(struct lttng_event *events, int count, | |
739 | struct lttng_domain *domain) | |
740 | { | |
741 | int ret, i; | |
f37d259d | 742 | |
fb14d0d8 JR |
743 | /* Open domains element */ |
744 | ret = mi_lttng_domains_open(writer); | |
745 | if (ret) { | |
746 | goto end; | |
747 | } | |
748 | ||
749 | /* Write domain */ | |
750 | ret = mi_lttng_domain(writer, domain, 1); | |
751 | if (ret) { | |
752 | goto end; | |
753 | } | |
754 | ||
755 | /* Open events */ | |
756 | ret = mi_lttng_events_open(writer); | |
757 | if (ret) { | |
758 | goto end; | |
759 | } | |
760 | ||
761 | for (i = 0; i < count; i++) { | |
d58bb917 | 762 | ret = mi_lttng_event(writer, &events[i], 0); |
fb14d0d8 JR |
763 | if (ret) { |
764 | goto end; | |
765 | } | |
766 | } | |
767 | ||
768 | /* close events, domain and domains */ | |
769 | ret = mi_lttng_close_multi_element(writer, 3); | |
770 | if (ret) { | |
771 | goto end; | |
772 | } | |
773 | ||
774 | end: | |
775 | return ret; | |
f37d259d MD |
776 | } |
777 | ||
f3ed775e | 778 | /* |
fb14d0d8 | 779 | * Ask for all trace events in the kernel |
f3ed775e | 780 | */ |
9f19cc17 | 781 | static int list_kernel_events(void) |
f3ed775e | 782 | { |
fb14d0d8 | 783 | int i, size, ret = CMD_SUCCESS; |
b551a063 DG |
784 | struct lttng_domain domain; |
785 | struct lttng_handle *handle; | |
9f19cc17 | 786 | struct lttng_event *event_list; |
f3ed775e | 787 | |
441c16a7 MD |
788 | memset(&domain, 0, sizeof(domain)); |
789 | ||
b551a063 DG |
790 | DBG("Getting kernel tracing events"); |
791 | ||
792 | domain.type = LTTNG_DOMAIN_KERNEL; | |
793 | ||
794 | handle = lttng_create_handle(NULL, &domain); | |
795 | if (handle == NULL) { | |
fb14d0d8 | 796 | ret = CMD_ERROR; |
b551a063 DG |
797 | goto error; |
798 | } | |
f3ed775e | 799 | |
cd80958d | 800 | size = lttng_list_tracepoints(handle, &event_list); |
9f19cc17 | 801 | if (size < 0) { |
60e835ca | 802 | ERR("Unable to list kernel events: %s", lttng_strerror(size)); |
ef021732 | 803 | lttng_destroy_handle(handle); |
fb14d0d8 | 804 | return CMD_ERROR; |
f3ed775e DG |
805 | } |
806 | ||
fb14d0d8 JR |
807 | if (lttng_opt_mi) { |
808 | /* Mi print */ | |
809 | ret = mi_list_kernel_events(event_list, size, &domain); | |
810 | if (ret) { | |
811 | ret = CMD_ERROR; | |
812 | goto end; | |
813 | } | |
814 | } else { | |
815 | MSG("Kernel events:\n-------------"); | |
f3ed775e | 816 | |
fb14d0d8 JR |
817 | for (i = 0; i < size; i++) { |
818 | print_events(&event_list[i]); | |
819 | } | |
f3ed775e | 820 | |
fb14d0d8 JR |
821 | MSG(""); |
822 | } | |
b551a063 | 823 | |
fb14d0d8 | 824 | end: |
f3ed775e DG |
825 | free(event_list); |
826 | ||
ef021732 | 827 | lttng_destroy_handle(handle); |
fb14d0d8 | 828 | return ret; |
b551a063 DG |
829 | |
830 | error: | |
ef021732 | 831 | lttng_destroy_handle(handle); |
fb14d0d8 JR |
832 | return ret; |
833 | } | |
834 | ||
835 | /* | |
836 | * Machine Interface | |
5cdb6027 | 837 | * Print a list of agent events |
fb14d0d8 | 838 | */ |
5cdb6027 | 839 | static int mi_list_session_agent_events(struct lttng_event *events, int count) |
fb14d0d8 JR |
840 | { |
841 | int ret, i; | |
842 | ||
843 | /* Open events element */ | |
844 | ret = mi_lttng_events_open(writer); | |
845 | if (ret) { | |
846 | goto end; | |
847 | } | |
848 | ||
849 | for (i = 0; i < count; i++) { | |
850 | ret = mi_lttng_event(writer, &events[i], 0); | |
851 | if (ret) { | |
852 | goto end; | |
853 | } | |
854 | } | |
855 | ||
856 | /* Close events element */ | |
857 | ret = mi_lttng_writer_close_element(writer); | |
858 | ||
859 | end: | |
860 | return ret; | |
f3ed775e DG |
861 | } |
862 | ||
3c6a091f | 863 | /* |
5cdb6027 | 864 | * List agent events for a specific session using the handle. |
3c6a091f DG |
865 | * |
866 | * Return CMD_SUCCESS on success else a negative value. | |
867 | */ | |
5cdb6027 | 868 | static int list_session_agent_events(void) |
3c6a091f | 869 | { |
fb14d0d8 | 870 | int ret = CMD_SUCCESS, count, i; |
3c6a091f DG |
871 | struct lttng_event *events = NULL; |
872 | ||
873 | count = lttng_list_events(handle, "", &events); | |
874 | if (count < 0) { | |
fb14d0d8 JR |
875 | ret = CMD_ERROR; |
876 | ERR("%s", lttng_strerror(count)); | |
3c6a091f DG |
877 | goto error; |
878 | } | |
879 | ||
fb14d0d8 JR |
880 | if (lttng_opt_mi) { |
881 | /* Mi print */ | |
5cdb6027 | 882 | ret = mi_list_session_agent_events(events, count); |
fb14d0d8 JR |
883 | if (ret) { |
884 | ret = CMD_ERROR; | |
885 | goto end; | |
886 | } | |
887 | } else { | |
888 | /* Pretty print */ | |
889 | MSG("Events (Logger name):\n---------------------"); | |
890 | if (count == 0) { | |
891 | MSG("%sNone\n", indent6); | |
892 | goto end; | |
893 | } | |
894 | ||
895 | for (i = 0; i < count; i++) { | |
896 | MSG("%s- %s%s (loglevel%s %s)", indent4, events[i].name, | |
897 | enabled_string(events[i].enabled), | |
898 | logleveltype_string(events[i].loglevel_type), | |
136f2f81 | 899 | mi_lttng_loglevel_string(events[i].loglevel)); |
fb14d0d8 JR |
900 | } |
901 | ||
902 | MSG(""); | |
903 | } | |
904 | ||
905 | end: | |
906 | free(events); | |
907 | error: | |
908 | return ret; | |
909 | } | |
910 | ||
911 | /* | |
912 | * Machine interface | |
913 | * print a list of event | |
914 | */ | |
915 | static int mi_list_events(struct lttng_event *events, int count) | |
916 | { | |
917 | int ret, i; | |
918 | ||
919 | /* Open events element */ | |
920 | ret = mi_lttng_events_open(writer); | |
921 | if (ret) { | |
3c6a091f DG |
922 | goto end; |
923 | } | |
924 | ||
925 | for (i = 0; i < count; i++) { | |
fb14d0d8 JR |
926 | ret = mi_lttng_event(writer, &events[i], 0); |
927 | if (ret) { | |
928 | goto end; | |
929 | } | |
3c6a091f DG |
930 | } |
931 | ||
fb14d0d8 JR |
932 | /* Close events element */ |
933 | ret = mi_lttng_writer_close_element(writer); | |
3c6a091f DG |
934 | |
935 | end: | |
3c6a091f DG |
936 | return ret; |
937 | } | |
938 | ||
f3ed775e | 939 | /* |
9f19cc17 | 940 | * List events of channel of session and domain. |
f3ed775e | 941 | */ |
cd80958d | 942 | static int list_events(const char *channel_name) |
f3ed775e | 943 | { |
fb14d0d8 | 944 | int ret = CMD_SUCCESS, count, i; |
9f19cc17 | 945 | struct lttng_event *events = NULL; |
f3ed775e | 946 | |
cd80958d | 947 | count = lttng_list_events(handle, channel_name, &events); |
f3ed775e | 948 | if (count < 0) { |
fb14d0d8 JR |
949 | ret = CMD_ERROR; |
950 | ERR("%s", lttng_strerror(count)); | |
f3ed775e DG |
951 | goto error; |
952 | } | |
953 | ||
fb14d0d8 JR |
954 | if (lttng_opt_mi) { |
955 | /* Mi print */ | |
956 | ret = mi_list_events(events, count); | |
957 | if (ret) { | |
958 | ret = CMD_ERROR; | |
959 | goto end; | |
960 | } | |
961 | } else { | |
962 | /* Pretty print */ | |
963 | MSG("\n%sEvents:", indent4); | |
964 | if (count == 0) { | |
965 | MSG("%sNone\n", indent6); | |
966 | goto end; | |
967 | } | |
f3ed775e | 968 | |
fb14d0d8 JR |
969 | for (i = 0; i < count; i++) { |
970 | print_events(&events[i]); | |
971 | } | |
f3ed775e | 972 | |
fb14d0d8 JR |
973 | MSG(""); |
974 | } | |
9f19cc17 | 975 | end: |
0e428499 | 976 | free(events); |
f3ed775e DG |
977 | error: |
978 | return ret; | |
979 | } | |
980 | ||
981 | /* | |
9f19cc17 DG |
982 | * Pretty print channel |
983 | */ | |
984 | static void print_channel(struct lttng_channel *channel) | |
985 | { | |
464dd62d | 986 | MSG("- %s:%s\n", channel->name, enabled_string(channel->enabled)); |
9f19cc17 DG |
987 | |
988 | MSG("%sAttributes:", indent4); | |
a5bbe8f6 DG |
989 | MSG("%soverwrite mode: %d", indent6, channel->attr.overwrite); |
990 | MSG("%ssubbufers size: %" PRIu64, indent6, channel->attr.subbuf_size); | |
9f19cc17 | 991 | MSG("%snumber of subbufers: %" PRIu64, indent6, channel->attr.num_subbuf); |
a5bbe8f6 DG |
992 | MSG("%sswitch timer interval: %u", indent6, channel->attr.switch_timer_interval); |
993 | MSG("%sread timer interval: %u", indent6, channel->attr.read_timer_interval); | |
2f785fe7 DG |
994 | MSG("%strace file count: %" PRIu64, indent6, channel->attr.tracefile_count); |
995 | MSG("%strace file size (bytes): %" PRIu64, indent6, channel->attr.tracefile_size); | |
9f19cc17 DG |
996 | switch (channel->attr.output) { |
997 | case LTTNG_EVENT_SPLICE: | |
998 | MSG("%soutput: splice()", indent6); | |
999 | break; | |
1000 | case LTTNG_EVENT_MMAP: | |
1001 | MSG("%soutput: mmap()", indent6); | |
1002 | break; | |
1003 | } | |
1004 | } | |
1005 | ||
fb14d0d8 JR |
1006 | /* |
1007 | * Machine interface | |
1008 | * Print a list of channel | |
1009 | * | |
1010 | */ | |
1011 | static int mi_list_channels(struct lttng_channel *channels, int count, | |
1012 | const char *channel_name) | |
1013 | { | |
1014 | int i, ret; | |
1015 | unsigned int chan_found = 0; | |
1016 | ||
1017 | /* Open channels element */ | |
1018 | ret = mi_lttng_channels_open(writer); | |
1019 | if (ret) { | |
1020 | goto error; | |
1021 | } | |
1022 | ||
1023 | for (i = 0; i < count; i++) { | |
1024 | if (channel_name != NULL) { | |
1025 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1026 | chan_found = 1; | |
1027 | } else { | |
1028 | continue; | |
1029 | } | |
1030 | } | |
1031 | ||
1032 | /* Write channel element and leave it open */ | |
1033 | ret = mi_lttng_channel(writer, &channels[i], 1); | |
1034 | if (ret) { | |
1035 | goto error; | |
1036 | } | |
1037 | ||
1038 | /* Listing events per channel */ | |
1039 | ret = list_events(channels[i].name); | |
1040 | if (ret) { | |
1041 | goto error; | |
1042 | } | |
1043 | ||
1044 | /* Closing the channel element we opened earlier */ | |
1045 | ret = mi_lttng_writer_close_element(writer); | |
1046 | if (ret) { | |
1047 | goto error; | |
1048 | } | |
1049 | ||
1050 | if (chan_found) { | |
1051 | break; | |
1052 | } | |
1053 | } | |
1054 | ||
1055 | /* Close channels element */ | |
1056 | ret = mi_lttng_writer_close_element(writer); | |
1057 | if (ret) { | |
1058 | goto error; | |
1059 | } | |
1060 | ||
1061 | error: | |
1062 | return ret; | |
1063 | } | |
1064 | ||
9f19cc17 DG |
1065 | /* |
1066 | * List channel(s) of session and domain. | |
f3ed775e | 1067 | * |
9f19cc17 | 1068 | * If channel_name is NULL, all channels are listed. |
f3ed775e | 1069 | */ |
cd80958d | 1070 | static int list_channels(const char *channel_name) |
f3ed775e | 1071 | { |
9f19cc17 DG |
1072 | int count, i, ret = CMD_SUCCESS; |
1073 | unsigned int chan_found = 0; | |
1074 | struct lttng_channel *channels = NULL; | |
f3ed775e | 1075 | |
3e25cb20 | 1076 | DBG("Listing channel(s) (%s)", channel_name ? : "<all>"); |
9f19cc17 | 1077 | |
cd80958d | 1078 | count = lttng_list_channels(handle, &channels); |
f3ed775e | 1079 | if (count < 0) { |
c7d620a2 DG |
1080 | switch (-count) { |
1081 | case LTTNG_ERR_KERN_CHAN_NOT_FOUND: | |
fb14d0d8 JR |
1082 | if (lttng_opt_mi) { |
1083 | /* When printing mi this is not an error | |
1084 | * but an empty channels element */ | |
1085 | count = 0; | |
1086 | } else { | |
1087 | ret = CMD_SUCCESS; | |
1088 | WARN("No kernel channel"); | |
1089 | goto error_channels; | |
1090 | } | |
c7d620a2 DG |
1091 | break; |
1092 | default: | |
1093 | /* We had a real error */ | |
fb14d0d8 JR |
1094 | ret = CMD_ERROR; |
1095 | ERR("%s", lttng_strerror(count)); | |
1096 | goto error_channels; | |
60e835ca | 1097 | break; |
c7d620a2 | 1098 | } |
f3ed775e DG |
1099 | } |
1100 | ||
fb14d0d8 JR |
1101 | if (lttng_opt_mi) { |
1102 | /* Mi print */ | |
1103 | ret = mi_list_channels(channels, count, channel_name); | |
1104 | if (ret) { | |
1105 | ret = CMD_ERROR; | |
1106 | goto error; | |
1107 | } | |
1108 | } else { | |
1109 | /* Pretty print */ | |
1110 | if (channel_name == NULL) { | |
1111 | MSG("Channels:\n-------------"); | |
1112 | } | |
9f19cc17 | 1113 | |
fb14d0d8 JR |
1114 | for (i = 0; i < count; i++) { |
1115 | if (channel_name != NULL) { | |
1116 | if (strncmp(channels[i].name, channel_name, NAME_MAX) == 0) { | |
1117 | chan_found = 1; | |
1118 | } else { | |
1119 | continue; | |
1120 | } | |
1121 | } | |
1122 | print_channel(&channels[i]); | |
1123 | ||
1124 | /* Listing events per channel */ | |
1125 | ret = list_events(channels[i].name); | |
1126 | if (ret) { | |
1127 | goto error; | |
1128 | } | |
1129 | ||
1130 | if (chan_found) { | |
1131 | break; | |
9f19cc17 DG |
1132 | } |
1133 | } | |
9f19cc17 | 1134 | |
fb14d0d8 JR |
1135 | if (!chan_found && channel_name != NULL) { |
1136 | ret = CMD_ERROR; | |
1137 | ERR("Channel %s not found", channel_name); | |
1138 | goto error; | |
9f19cc17 | 1139 | } |
fb14d0d8 JR |
1140 | } |
1141 | error: | |
1142 | free(channels); | |
9f19cc17 | 1143 | |
fb14d0d8 JR |
1144 | error_channels: |
1145 | return ret; | |
1146 | } | |
1147 | ||
1148 | /* | |
1149 | * Machine interface | |
1150 | * Find the session with session_name as name | |
1151 | * and print his informations. | |
1152 | */ | |
1153 | static int mi_list_session(const char *session_name, | |
1154 | struct lttng_session *sessions, int count) | |
1155 | { | |
1156 | int ret, i; | |
1157 | unsigned int session_found = 0; | |
1158 | ||
1159 | if (session_name == NULL) { | |
1160 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1161 | goto end; | |
1162 | } | |
1163 | ||
1164 | for (i = 0; i < count; i++) { | |
1165 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1166 | /* We need to leave it open to append other informations | |
1167 | * like domain, channel, events etc.*/ | |
1168 | session_found = 1; | |
1169 | ret = mi_lttng_session(writer, &sessions[i], 1); | |
1170 | if (ret) { | |
1171 | goto end; | |
1172 | } | |
9f19cc17 | 1173 | break; |
f3ed775e | 1174 | } |
f3ed775e DG |
1175 | } |
1176 | ||
fb14d0d8 JR |
1177 | if (!session_found) { |
1178 | ERR("Session '%s' not found", session_name); | |
1179 | ret = -LTTNG_ERR_SESS_NOT_FOUND; | |
1180 | goto end; | |
9f19cc17 | 1181 | } |
f3ed775e | 1182 | |
fb14d0d8 JR |
1183 | end: |
1184 | return ret; | |
1185 | } | |
f3ed775e | 1186 | |
fb14d0d8 JR |
1187 | /* |
1188 | * Machine interface | |
1189 | * List all availables session | |
1190 | */ | |
1191 | static int mi_list_sessions(struct lttng_session *sessions, int count) | |
1192 | { | |
1193 | int ret, i; | |
ae856491 | 1194 | |
fb14d0d8 JR |
1195 | /* Opening sessions element */ |
1196 | ret = mi_lttng_sessions_open(writer); | |
1197 | if (ret) { | |
1198 | goto end; | |
1199 | } | |
1200 | ||
1201 | /* Listing sessions */ | |
1202 | for (i = 0; i < count; i++) { | |
1203 | ret = mi_lttng_session(writer, &sessions[i], 0); | |
1204 | if (ret) { | |
1205 | goto end; | |
1206 | } | |
1207 | } | |
1208 | ||
1209 | /* Closing sessions element */ | |
1210 | ret = mi_lttng_writer_close_element(writer); | |
1211 | if (ret) { | |
1212 | goto end; | |
1213 | } | |
1214 | ||
1215 | end: | |
f3ed775e DG |
1216 | return ret; |
1217 | } | |
1218 | ||
1219 | /* | |
9f19cc17 | 1220 | * List available tracing session. List only basic information. |
f3ed775e | 1221 | * |
9f19cc17 | 1222 | * If session_name is NULL, all sessions are listed. |
f3ed775e | 1223 | */ |
9f19cc17 | 1224 | static int list_sessions(const char *session_name) |
f3ed775e | 1225 | { |
fb14d0d8 JR |
1226 | int ret = CMD_SUCCESS; |
1227 | int count, i; | |
9f19cc17 DG |
1228 | unsigned int session_found = 0; |
1229 | struct lttng_session *sessions; | |
1230 | ||
1231 | count = lttng_list_sessions(&sessions); | |
1232 | DBG("Session count %d", count); | |
1233 | if (count < 0) { | |
fb14d0d8 JR |
1234 | ret = CMD_ERROR; |
1235 | ERR("%s", lttng_strerror(count)); | |
d32fb093 | 1236 | goto end; |
9f19cc17 DG |
1237 | } |
1238 | ||
fb14d0d8 JR |
1239 | if (lttng_opt_mi) { |
1240 | /* Mi */ | |
1241 | if (session_name == NULL) { | |
1242 | /* List all session */ | |
1243 | ret = mi_list_sessions(sessions, count); | |
1244 | } else { | |
1245 | /* Note : this return an open session element */ | |
1246 | ret = mi_list_session(session_name, sessions, count); | |
1247 | } | |
1248 | if (ret) { | |
1249 | ret = CMD_ERROR; | |
1250 | goto error; | |
1251 | } | |
1252 | } else { | |
1253 | /* Pretty print */ | |
1254 | if (count == 0) { | |
1255 | MSG("Currently no available tracing session"); | |
fb14d0d8 JR |
1256 | goto end; |
1257 | } | |
9f19cc17 | 1258 | |
fb14d0d8 JR |
1259 | if (session_name == NULL) { |
1260 | MSG("Available tracing sessions:"); | |
1261 | } | |
1262 | ||
1263 | ||
1264 | for (i = 0; i < count; i++) { | |
1265 | if (session_name != NULL) { | |
1266 | if (strncmp(sessions[i].name, session_name, NAME_MAX) == 0) { | |
1267 | session_found = 1; | |
1268 | MSG("Tracing session %s: [%s%s]", session_name, | |
1269 | active_string(sessions[i].enabled), | |
1270 | snapshot_string(sessions[i].snapshot_mode)); | |
1271 | MSG("%sTrace path: %s\n", indent4, sessions[i].path); | |
1272 | break; | |
1273 | } | |
1274 | } else { | |
1275 | MSG(" %d) %s (%s) [%s%s]", i + 1, | |
1276 | sessions[i].name, sessions[i].path, | |
2cbf8fed DG |
1277 | active_string(sessions[i].enabled), |
1278 | snapshot_string(sessions[i].snapshot_mode)); | |
2f785fe7 DG |
1279 | MSG("%sTrace path: %s", indent4, sessions[i].path); |
1280 | MSG("%sLive timer interval (usec): %u\n", indent4, | |
1281 | sessions[i].live_timer_interval); | |
9f19cc17 | 1282 | } |
fb14d0d8 JR |
1283 | } |
1284 | ||
1285 | if (!session_found && session_name != NULL) { | |
1286 | ERR("Session '%s' not found", session_name); | |
1287 | ret = CMD_ERROR; | |
1288 | goto error; | |
1289 | } | |
1290 | ||
1291 | if (session_name == NULL) { | |
1292 | MSG("\nUse lttng list <session_name> for more details"); | |
9f19cc17 DG |
1293 | } |
1294 | } | |
1295 | ||
fb14d0d8 | 1296 | error: |
9f19cc17 | 1297 | free(sessions); |
fb14d0d8 JR |
1298 | end: |
1299 | return ret; | |
1300 | } | |
9f19cc17 | 1301 | |
fb14d0d8 JR |
1302 | |
1303 | /* | |
1304 | * Machine Interface | |
1305 | * list available domain(s) for a session. | |
1306 | */ | |
1307 | static int mi_list_domains(struct lttng_domain *domains, int count) | |
1308 | { | |
1309 | int i, ret; | |
1310 | /* Open domains element */ | |
1311 | ret = mi_lttng_domains_open(writer); | |
1312 | if (ret) { | |
1313 | goto end; | |
9f19cc17 DG |
1314 | } |
1315 | ||
fb14d0d8 JR |
1316 | for (i = 0; i < count; i++) { |
1317 | ret = mi_lttng_domain(writer, &domains[i] , 0); | |
1318 | if (ret) { | |
1319 | goto end; | |
1320 | } | |
9f19cc17 | 1321 | } |
f3ed775e | 1322 | |
fb14d0d8 JR |
1323 | /* Closing domains element */ |
1324 | ret = mi_lttng_writer_close_element(writer); | |
1325 | if (ret) { | |
1326 | goto end; | |
1327 | } | |
d32fb093 | 1328 | end: |
f3ed775e DG |
1329 | return ret; |
1330 | } | |
f3ed775e DG |
1331 | |
1332 | /* | |
9f19cc17 | 1333 | * List available domain(s) for a session. |
f3ed775e | 1334 | */ |
330be774 | 1335 | static int list_domains(const char *session_name) |
f3ed775e | 1336 | { |
9f19cc17 DG |
1337 | int i, count, ret = CMD_SUCCESS; |
1338 | struct lttng_domain *domains = NULL; | |
1339 | ||
9f19cc17 | 1340 | |
330be774 | 1341 | count = lttng_list_domains(session_name, &domains); |
9f19cc17 | 1342 | if (count < 0) { |
fb14d0d8 JR |
1343 | ret = CMD_ERROR; |
1344 | ERR("%s", lttng_strerror(count)); | |
9f19cc17 DG |
1345 | goto end; |
1346 | } | |
1347 | ||
fb14d0d8 JR |
1348 | if (lttng_opt_mi) { |
1349 | /* Mi output */ | |
1350 | ret = mi_list_domains(domains, count); | |
1351 | if (ret) { | |
1352 | ret = CMD_ERROR; | |
1353 | goto error; | |
1354 | } | |
1355 | } else { | |
1356 | /* Pretty print */ | |
1357 | MSG("Domains:\n-------------"); | |
1358 | if (count == 0) { | |
1359 | MSG(" None"); | |
1360 | goto end; | |
1361 | } | |
1362 | ||
1363 | for (i = 0; i < count; i++) { | |
1364 | switch (domains[i].type) { | |
1365 | case LTTNG_DOMAIN_KERNEL: | |
1366 | MSG(" - Kernel"); | |
1367 | break; | |
1368 | case LTTNG_DOMAIN_UST: | |
1369 | MSG(" - UST global"); | |
1370 | break; | |
1371 | case LTTNG_DOMAIN_JUL: | |
1372 | MSG(" - JUL (Java Util Logging)"); | |
1373 | break; | |
5cdb6027 DG |
1374 | case LTTNG_DOMAIN_LOG4J: |
1375 | MSG(" - LOG4j (Logging for Java)"); | |
1376 | break; | |
fb14d0d8 JR |
1377 | default: |
1378 | break; | |
1379 | } | |
9f19cc17 DG |
1380 | } |
1381 | } | |
1382 | ||
fb14d0d8 | 1383 | error: |
9f19cc17 DG |
1384 | free(domains); |
1385 | ||
fb14d0d8 | 1386 | end: |
9f19cc17 | 1387 | return ret; |
f3ed775e | 1388 | } |
f3ed775e DG |
1389 | |
1390 | /* | |
9f19cc17 | 1391 | * The 'list <options>' first level command |
f3ed775e DG |
1392 | */ |
1393 | int cmd_list(int argc, const char **argv) | |
1394 | { | |
c617c0c6 | 1395 | int opt, ret = CMD_SUCCESS; |
9f19cc17 | 1396 | const char *session_name; |
f3ed775e | 1397 | static poptContext pc; |
9f19cc17 DG |
1398 | struct lttng_domain domain; |
1399 | struct lttng_domain *domains = NULL; | |
f3ed775e | 1400 | |
441c16a7 MD |
1401 | memset(&domain, 0, sizeof(domain)); |
1402 | ||
9f19cc17 | 1403 | if (argc < 1) { |
f3ed775e | 1404 | usage(stderr); |
ca1c3607 | 1405 | ret = CMD_ERROR; |
f3ed775e DG |
1406 | goto end; |
1407 | } | |
1408 | ||
1409 | pc = poptGetContext(NULL, argc, argv, long_options, 0); | |
1410 | poptReadDefaultConfig(pc, 0); | |
1411 | ||
1412 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
1413 | switch (opt) { | |
1414 | case OPT_HELP: | |
ca1c3607 | 1415 | usage(stdout); |
f3ed775e | 1416 | goto end; |
eeac7d46 MD |
1417 | case OPT_USERSPACE: |
1418 | opt_userspace = 1; | |
eeac7d46 | 1419 | break; |
679b4943 SM |
1420 | case OPT_LIST_OPTIONS: |
1421 | list_cmd_options(stdout, long_options); | |
679b4943 | 1422 | goto end; |
f3ed775e DG |
1423 | default: |
1424 | usage(stderr); | |
1425 | ret = CMD_UNDEFINED; | |
1426 | goto end; | |
1427 | } | |
1428 | } | |
1429 | ||
fb14d0d8 JR |
1430 | /* Mi check */ |
1431 | if (lttng_opt_mi) { | |
1432 | writer = mi_lttng_writer_create(fileno(stdout), lttng_opt_mi); | |
1433 | if (!writer) { | |
1434 | ret = CMD_ERROR; | |
1435 | goto end; | |
1436 | } | |
1437 | ||
1438 | /* Open command element */ | |
1439 | ret = mi_lttng_writer_command_open(writer, | |
1440 | mi_lttng_element_command_list); | |
1441 | if (ret) { | |
1442 | ret = CMD_ERROR; | |
1443 | goto end; | |
1444 | } | |
1445 | ||
1446 | /* Open output element */ | |
1447 | ret = mi_lttng_writer_open_element(writer, | |
1448 | mi_lttng_element_command_output); | |
1449 | if (ret) { | |
1450 | ret = CMD_ERROR; | |
1451 | goto end; | |
1452 | } | |
1453 | } | |
1454 | ||
9f19cc17 DG |
1455 | /* Get session name (trailing argument) */ |
1456 | session_name = poptGetArg(pc); | |
b551a063 | 1457 | DBG2("Session name: %s", session_name); |
9f19cc17 | 1458 | |
cd80958d DG |
1459 | if (opt_kernel) { |
1460 | domain.type = LTTNG_DOMAIN_KERNEL; | |
b551a063 DG |
1461 | } else if (opt_userspace) { |
1462 | DBG2("Listing userspace global domain"); | |
1463 | domain.type = LTTNG_DOMAIN_UST; | |
3c6a091f DG |
1464 | } else if (opt_jul) { |
1465 | DBG2("Listing JUL domain"); | |
1466 | domain.type = LTTNG_DOMAIN_JUL; | |
edf60534 | 1467 | } else if (opt_log4j) { |
5cdb6027 | 1468 | domain.type = LTTNG_DOMAIN_LOG4J; |
cd80958d DG |
1469 | } |
1470 | ||
5cdb6027 | 1471 | if (opt_kernel || opt_userspace || opt_jul || opt_log4j) { |
aa5de748 MD |
1472 | handle = lttng_create_handle(session_name, &domain); |
1473 | if (handle == NULL) { | |
1474 | ret = CMD_FATAL; | |
1475 | goto end; | |
1476 | } | |
cd80958d DG |
1477 | } |
1478 | ||
9f19cc17 | 1479 | if (session_name == NULL) { |
5cdb6027 | 1480 | if (!opt_kernel && !opt_userspace && !opt_jul && !opt_log4j) { |
b551a063 | 1481 | ret = list_sessions(NULL); |
fb14d0d8 | 1482 | if (ret) { |
b551a063 DG |
1483 | goto end; |
1484 | } | |
1485 | } | |
9f19cc17 DG |
1486 | if (opt_kernel) { |
1487 | ret = list_kernel_events(); | |
fb14d0d8 | 1488 | if (ret) { |
9f19cc17 DG |
1489 | goto end; |
1490 | } | |
b551a063 DG |
1491 | } |
1492 | if (opt_userspace) { | |
f37d259d MD |
1493 | if (opt_fields) { |
1494 | ret = list_ust_event_fields(); | |
1495 | } else { | |
1496 | ret = list_ust_events(); | |
1497 | } | |
fb14d0d8 | 1498 | if (ret) { |
9f19cc17 DG |
1499 | goto end; |
1500 | } | |
1501 | } | |
5cdb6027 DG |
1502 | if (opt_jul || opt_log4j) { |
1503 | ret = list_agent_events(); | |
fb14d0d8 | 1504 | if (ret) { |
3c6a091f DG |
1505 | goto end; |
1506 | } | |
1507 | } | |
9f19cc17 DG |
1508 | } else { |
1509 | /* List session attributes */ | |
fb14d0d8 JR |
1510 | if (lttng_opt_mi) { |
1511 | /* Open element sessions | |
1512 | * Present for xml consistency */ | |
1513 | ret = mi_lttng_sessions_open(writer); | |
1514 | if (ret) { | |
1515 | goto end; | |
1516 | } | |
1517 | } | |
1518 | /* MI: the ouptut of list_sessions is an unclosed session element */ | |
9f19cc17 | 1519 | ret = list_sessions(session_name); |
fb14d0d8 | 1520 | if (ret) { |
9f19cc17 DG |
1521 | goto end; |
1522 | } | |
1523 | ||
1524 | /* Domain listing */ | |
1525 | if (opt_domain) { | |
330be774 | 1526 | ret = list_domains(session_name); |
9f19cc17 DG |
1527 | goto end; |
1528 | } | |
1529 | ||
fb14d0d8 | 1530 | /* Channel listing */ |
1c3de747 | 1531 | if (opt_kernel || opt_userspace) { |
fb14d0d8 JR |
1532 | if (lttng_opt_mi) { |
1533 | /* Add of domains and domain element for xml | |
1534 | * consistency and validation | |
1535 | */ | |
1536 | ret = mi_lttng_domains_open(writer); | |
1537 | if (ret) { | |
1538 | goto end; | |
1539 | } | |
1540 | ||
1541 | /* Open domain and leave it open for | |
1542 | * nested channels printing */ | |
1543 | ret = mi_lttng_domain(writer, &domain, 1); | |
1544 | if (ret) { | |
1545 | goto end; | |
1546 | } | |
1547 | ||
1548 | } | |
1549 | ||
cd80958d | 1550 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1551 | if (ret) { |
1552 | goto end; | |
1553 | } | |
1554 | ||
1555 | if (lttng_opt_mi) { | |
1556 | /* Close domain and domain element */ | |
1557 | ret = mi_lttng_close_multi_element(writer, 2); | |
1558 | } | |
1559 | if (ret) { | |
9f19cc17 DG |
1560 | goto end; |
1561 | } | |
fb14d0d8 JR |
1562 | |
1563 | ||
9f19cc17 | 1564 | } else { |
c617c0c6 MD |
1565 | int i, nb_domain; |
1566 | ||
9f19cc17 | 1567 | /* We want all domain(s) */ |
330be774 | 1568 | nb_domain = lttng_list_domains(session_name, &domains); |
b551a063 | 1569 | if (nb_domain < 0) { |
fb14d0d8 JR |
1570 | ret = CMD_ERROR; |
1571 | ERR("%s", lttng_strerror(nb_domain)); | |
9f19cc17 DG |
1572 | goto end; |
1573 | } | |
1574 | ||
fb14d0d8 JR |
1575 | if (lttng_opt_mi) { |
1576 | ret = mi_lttng_domains_open(writer); | |
1577 | if (ret) { | |
1578 | ret = CMD_ERROR; | |
1579 | goto end; | |
1580 | } | |
1581 | } | |
1582 | ||
b551a063 | 1583 | for (i = 0; i < nb_domain; i++) { |
9f19cc17 DG |
1584 | switch (domains[i].type) { |
1585 | case LTTNG_DOMAIN_KERNEL: | |
1586 | MSG("=== Domain: Kernel ===\n"); | |
1587 | break; | |
b551a063 DG |
1588 | case LTTNG_DOMAIN_UST: |
1589 | MSG("=== Domain: UST global ===\n"); | |
88c5f0d8 DG |
1590 | MSG("Buffer type: %s\n", |
1591 | domains[i].buf_type == | |
1592 | LTTNG_BUFFER_PER_PID ? "per PID" : "per UID"); | |
b551a063 | 1593 | break; |
3c6a091f DG |
1594 | case LTTNG_DOMAIN_JUL: |
1595 | MSG("=== Domain: JUL (Java Util Logging) ===\n"); | |
1596 | break; | |
5cdb6027 DG |
1597 | case LTTNG_DOMAIN_LOG4J: |
1598 | MSG("=== Domain: LOG4j (Logging for Java) ===\n"); | |
1599 | break; | |
9f19cc17 DG |
1600 | default: |
1601 | MSG("=== Domain: Unimplemented ===\n"); | |
1602 | break; | |
1603 | } | |
1604 | ||
fb14d0d8 JR |
1605 | if (lttng_opt_mi) { |
1606 | ret = mi_lttng_domain(writer, &domains[i], 1); | |
1607 | if (ret) { | |
1608 | ret = CMD_ERROR; | |
1609 | goto end; | |
1610 | } | |
1611 | } | |
1612 | ||
cd80958d | 1613 | /* Clean handle before creating a new one */ |
aa5de748 MD |
1614 | if (handle) { |
1615 | lttng_destroy_handle(handle); | |
1616 | } | |
cd80958d DG |
1617 | |
1618 | handle = lttng_create_handle(session_name, &domains[i]); | |
1619 | if (handle == NULL) { | |
ca1c3607 | 1620 | ret = CMD_FATAL; |
cd80958d DG |
1621 | goto end; |
1622 | } | |
1623 | ||
5cdb6027 DG |
1624 | if (domains[i].type == LTTNG_DOMAIN_JUL || |
1625 | domains[i].type == LTTNG_DOMAIN_LOG4J) { | |
1626 | ret = list_session_agent_events(); | |
fb14d0d8 | 1627 | if (ret) { |
3c6a091f DG |
1628 | goto end; |
1629 | } | |
1630 | continue; | |
1631 | } | |
1632 | ||
cd80958d | 1633 | ret = list_channels(opt_channel); |
fb14d0d8 JR |
1634 | if (ret) { |
1635 | goto end; | |
1636 | } | |
1637 | ||
1638 | if (lttng_opt_mi) { | |
1639 | /* Close domain element */ | |
1640 | ret = mi_lttng_writer_close_element(writer); | |
1641 | if (ret) { | |
1642 | ret = CMD_ERROR; | |
1643 | goto end; | |
1644 | } | |
1645 | } | |
1646 | ||
1647 | } | |
1648 | if (lttng_opt_mi) { | |
1649 | /* Close the domains, session and sessions element */ | |
1650 | ret = mi_lttng_close_multi_element(writer, 3); | |
1651 | if (ret) { | |
1652 | ret = CMD_ERROR; | |
9f19cc17 DG |
1653 | goto end; |
1654 | } | |
1655 | } | |
1656 | } | |
f3ed775e DG |
1657 | } |
1658 | ||
fb14d0d8 JR |
1659 | /* Mi closing */ |
1660 | if (lttng_opt_mi) { | |
1661 | /* Close output element */ | |
1662 | ret = mi_lttng_writer_close_element(writer); | |
1663 | if (ret) { | |
1664 | ret = CMD_ERROR; | |
1665 | goto end; | |
1666 | } | |
1667 | ||
1668 | /* Command element close */ | |
1669 | ret = mi_lttng_writer_command_close(writer); | |
1670 | if (ret) { | |
1671 | ret = CMD_ERROR; | |
1672 | goto end; | |
1673 | } | |
1674 | } | |
f3ed775e | 1675 | end: |
fb14d0d8 JR |
1676 | /* Mi clean-up */ |
1677 | if (writer && mi_lttng_writer_destroy(writer)) { | |
1678 | /* Preserve original error code */ | |
1679 | ret = ret ? ret : -LTTNG_ERR_MI_IO_FAIL; | |
1680 | } | |
1681 | ||
0e428499 | 1682 | free(domains); |
aa5de748 MD |
1683 | if (handle) { |
1684 | lttng_destroy_handle(handle); | |
1685 | } | |
cd80958d | 1686 | |
ca1c3607 | 1687 | poptFreeContext(pc); |
f3ed775e DG |
1688 | return ret; |
1689 | } |