Commit | Line | Data |
---|---|---|
1fc22eb4 | 1 | /* |
aa15ac1c | 2 | * Copyright (C) 2011-2012 Julien Desfossez |
1fc22eb4 JD |
3 | * |
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 as | |
6 | * published by the Free Software Foundation; | |
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 | * | |
71bd7ce1 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. | |
1fc22eb4 JD |
16 | */ |
17 | ||
18 | #define _GNU_SOURCE | |
19 | #include <config.h> | |
20 | #include <stdio.h> | |
21 | #include <stdint.h> | |
22 | #include <babeltrace/babeltrace.h> | |
23 | #include <babeltrace/ctf/events.h> | |
24 | #include <babeltrace/ctf/callbacks.h> | |
3ba84bed | 25 | #include <babeltrace/ctf/iterator.h> |
1fc22eb4 JD |
26 | #include <fcntl.h> |
27 | #include <pthread.h> | |
28 | #include <popt.h> | |
29 | #include <stdlib.h> | |
30 | #include <ftw.h> | |
31 | #include <dirent.h> | |
32 | #include <ctype.h> | |
33 | #include <sys/stat.h> | |
34 | #include <unistd.h> | |
35 | #include <string.h> | |
36 | #include <errno.h> | |
37 | #include <sys/types.h> | |
38 | #include <fts.h> | |
85db4618 | 39 | #include <assert.h> |
172f5d66 JD |
40 | #include <sys/mman.h> |
41 | #include <lttng/lttng.h> | |
42 | #include <lttng/lttngtop-helper.h> | |
67a84e40 | 43 | #include <babeltrace/lttngtopmmappacketseek.h> |
1fc22eb4 JD |
44 | |
45 | #include "lttngtoptypes.h" | |
46 | #include "cputop.h" | |
47 | #include "iostreamtop.h" | |
48 | #include "cursesdisplay.h" | |
49 | #include "common.h" | |
50 | ||
51 | #define DEFAULT_FILE_ARRAY_SIZE 1 | |
52 | ||
53 | const char *opt_input_path; | |
be5b48bd | 54 | static int opt_textdump; |
be5b48bd | 55 | static int opt_child; |
1fc22eb4 | 56 | |
da4a3c1d JD |
57 | int quit = 0; |
58 | ||
1fc22eb4 JD |
59 | struct lttngtop *copy; |
60 | pthread_t display_thread; | |
61 | pthread_t timer_thread; | |
62 | ||
63 | unsigned long refresh_display = 1 * NSEC_PER_SEC; | |
64 | unsigned long last_display_update = 0; | |
1fc22eb4 | 65 | |
172f5d66 JD |
66 | /* list of FDs available for being read with snapshots */ |
67 | struct mmap_stream_list mmap_list; | |
68 | GPtrArray *lttng_consumer_stream_array; | |
69 | int sessiond_metadata, consumerd_metadata; | |
0865cf6b JD |
70 | struct lttng_consumer_local_data *ctx = NULL; |
71 | /* list of snapshots currently not consumed */ | |
72 | GPtrArray *available_snapshots; | |
73 | sem_t metadata_available; | |
37b4b0bb | 74 | int reload_trace = 0; |
172f5d66 | 75 | |
1fc22eb4 JD |
76 | enum { |
77 | OPT_NONE = 0, | |
78 | OPT_HELP, | |
84d2a515 | 79 | OPT_TEXTDUMP, |
be5b48bd JD |
80 | OPT_PID, |
81 | OPT_CHILD, | |
1fc22eb4 JD |
82 | }; |
83 | ||
84 | static struct poptOption long_options[] = { | |
85 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
86 | { "help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL }, | |
84d2a515 | 87 | { "textdump", 't', POPT_ARG_NONE, NULL, OPT_TEXTDUMP, NULL, NULL }, |
be5b48bd JD |
88 | { "child", 'f', POPT_ARG_NONE, NULL, OPT_CHILD, NULL, NULL }, |
89 | { "pid", 'p', POPT_ARG_INT, &opt_pid, OPT_PID, NULL, NULL }, | |
1fc22eb4 JD |
90 | { NULL, 0, 0, NULL, 0, NULL, NULL }, |
91 | }; | |
92 | ||
828afa52 JD |
93 | static void handle_textdump_sigterm(int signal) |
94 | { | |
95 | quit = 1; | |
96 | lttng_destroy_session("test"); | |
97 | } | |
98 | ||
1fc22eb4 JD |
99 | void *refresh_thread(void *p) |
100 | { | |
024eb6c6 JD |
101 | struct mmap_stream *mmap_info; |
102 | ||
1fc22eb4 | 103 | while (1) { |
da4a3c1d JD |
104 | if (quit) { |
105 | sem_post(&pause_sem); | |
106 | sem_post(&timer); | |
670078c9 | 107 | sem_post(&end_trace_sem); |
da4a3c1d | 108 | sem_post(&goodtodisplay); |
670078c9 | 109 | sem_post(&goodtoupdate); |
da4a3c1d JD |
110 | pthread_exit(0); |
111 | } | |
670078c9 | 112 | if (!opt_input_path) { |
c56c5515 JD |
113 | bt_list_for_each_entry(mmap_info, &mmap_list.head, list) |
114 | helper_kernctl_buffer_flush(mmap_info->fd); | |
670078c9 | 115 | } |
1fc22eb4 JD |
116 | sem_wait(&pause_sem); |
117 | sem_post(&pause_sem); | |
118 | sem_post(&timer); | |
119 | sleep(refresh_display/NSEC_PER_SEC); | |
120 | } | |
121 | } | |
122 | ||
123 | void *ncurses_display(void *p) | |
124 | { | |
125 | unsigned int current_display_index = 0; | |
126 | ||
127 | sem_wait(&bootstrap); | |
b332d28f JD |
128 | /* |
129 | * Prevent the 1 second delay when we hit ESC | |
130 | */ | |
131 | ESCDELAY = 0; | |
1fc22eb4 JD |
132 | init_ncurses(); |
133 | ||
134 | while (1) { | |
135 | sem_wait(&timer); | |
136 | sem_wait(&goodtodisplay); | |
137 | sem_wait(&pause_sem); | |
138 | ||
da4a3c1d | 139 | if (quit) { |
24306dda JD |
140 | sem_post(&pause_sem); |
141 | sem_post(&timer); | |
da4a3c1d JD |
142 | reset_ncurses(); |
143 | pthread_exit(0); | |
144 | } | |
145 | ||
1fc22eb4 | 146 | copy = g_ptr_array_index(copies, current_display_index); |
85db4618 JD |
147 | assert(copy); |
148 | display(current_display_index++); | |
1fc22eb4 JD |
149 | |
150 | sem_post(&goodtoupdate); | |
151 | sem_post(&pause_sem); | |
1fc22eb4 JD |
152 | } |
153 | } | |
154 | ||
c1e6815a JD |
155 | /* |
156 | * hook on each event to check the timestamp and refresh the display if | |
157 | * necessary | |
158 | */ | |
159 | enum bt_cb_ret print_timestamp(struct bt_ctf_event *call_data, void *private_data) | |
160 | { | |
161 | unsigned long timestamp; | |
162 | struct tm start; | |
dbb34d88 | 163 | uint64_t ts_nsec_start; |
be5b48bd | 164 | int pid; |
c56c5515 JD |
165 | int64_t syscall_ret; |
166 | const struct definition *scope; | |
c1e6815a | 167 | |
c1e6815a JD |
168 | timestamp = bt_ctf_get_timestamp(call_data); |
169 | ||
dbb34d88 | 170 | start = format_timestamp(timestamp); |
c1e6815a JD |
171 | ts_nsec_start = timestamp % NSEC_PER_SEC; |
172 | ||
be5b48bd JD |
173 | pid = get_context_pid(call_data); |
174 | if (pid == -1ULL && opt_pid) { | |
175 | goto error; | |
176 | } | |
177 | ||
178 | if (opt_pid && opt_pid != pid) | |
179 | goto end; | |
180 | ||
c56c5515 JD |
181 | if (strcmp(bt_ctf_event_name(call_data), "exit_syscall") == 0) { |
182 | scope = bt_ctf_get_top_level_scope(call_data, | |
183 | BT_EVENT_FIELDS); | |
184 | syscall_ret = bt_ctf_get_int64(bt_ctf_get_field(call_data, | |
185 | scope, "_ret")); | |
186 | printf("= %ld\n", syscall_ret); | |
187 | } else { | |
188 | printf("%02d:%02d:%02d.%09" PRIu64 " %d : %s ", start.tm_hour, | |
189 | start.tm_min, start.tm_sec, ts_nsec_start, | |
190 | pid, bt_ctf_event_name(call_data)); | |
191 | } | |
c1e6815a | 192 | |
be5b48bd | 193 | end: |
c1e6815a | 194 | return BT_CB_OK; |
be5b48bd JD |
195 | error: |
196 | return BT_CB_ERROR_STOP; | |
c1e6815a JD |
197 | } |
198 | ||
1fc22eb4 JD |
199 | /* |
200 | * hook on each event to check the timestamp and refresh the display if | |
201 | * necessary | |
202 | */ | |
4adc8274 | 203 | enum bt_cb_ret check_timestamp(struct bt_ctf_event *call_data, void *private_data) |
1fc22eb4 JD |
204 | { |
205 | unsigned long timestamp; | |
206 | ||
67a84e40 | 207 | timestamp = bt_ctf_get_timestamp(call_data); |
1fc22eb4 JD |
208 | if (timestamp == -1ULL) |
209 | goto error; | |
210 | ||
211 | if (last_display_update == 0) | |
212 | last_display_update = timestamp; | |
213 | ||
214 | if (timestamp - last_display_update >= refresh_display) { | |
215 | sem_wait(&goodtoupdate); | |
216 | g_ptr_array_add(copies, get_copy_lttngtop(last_display_update, | |
217 | timestamp)); | |
218 | sem_post(&goodtodisplay); | |
219 | sem_post(&bootstrap); | |
220 | last_display_update = timestamp; | |
221 | } | |
222 | return BT_CB_OK; | |
223 | ||
224 | error: | |
225 | fprintf(stderr, "check_timestamp callback error\n"); | |
226 | return BT_CB_ERROR_STOP; | |
227 | } | |
228 | ||
229 | /* | |
230 | * get_perf_counter : get or create and return a perf_counter struct for | |
231 | * either a process or a cpu (only one of the 2 parameters mandatory) | |
232 | */ | |
233 | struct perfcounter *get_perf_counter(const char *name, struct processtop *proc, | |
234 | struct cputime *cpu) | |
235 | { | |
bb6d72a2 | 236 | struct perfcounter *ret; |
1fc22eb4 JD |
237 | GHashTable *table; |
238 | ||
239 | if (proc) | |
240 | table = proc->perf; | |
241 | else if (cpu) | |
242 | table = cpu->perf; | |
243 | else | |
244 | goto error; | |
245 | ||
246 | ret = g_hash_table_lookup(table, (gpointer) name); | |
247 | if (ret) | |
248 | goto end; | |
249 | ||
559c9f86 | 250 | ret = g_new0(struct perfcounter, 1); |
1fc22eb4 JD |
251 | /* by default, make it visible in the UI */ |
252 | ret->visible = 1; | |
85db4618 | 253 | g_hash_table_insert(table, (gpointer) strdup(name), ret); |
1fc22eb4 | 254 | |
1fc22eb4 JD |
255 | end: |
256 | return ret; | |
257 | ||
258 | error: | |
259 | return NULL; | |
260 | } | |
261 | ||
262 | void update_perf_value(struct processtop *proc, struct cputime *cpu, | |
263 | const char *name, int value) | |
264 | { | |
265 | struct perfcounter *cpu_perf, *process_perf; | |
266 | ||
267 | cpu_perf = get_perf_counter(name, NULL, cpu); | |
268 | if (cpu_perf->count < value) { | |
269 | process_perf = get_perf_counter(name, proc, NULL); | |
270 | process_perf->count += value - cpu_perf->count; | |
271 | cpu_perf->count = value; | |
272 | } | |
273 | } | |
274 | ||
4adc8274 | 275 | void extract_perf_counter_scope(const struct bt_ctf_event *event, |
3ba84bed | 276 | const struct definition *scope, |
1fc22eb4 JD |
277 | struct processtop *proc, |
278 | struct cputime *cpu) | |
279 | { | |
280 | struct definition const * const *list = NULL; | |
bb6d72a2 | 281 | const struct definition *field; |
1fc22eb4 | 282 | unsigned int count; |
bb6d72a2 JD |
283 | struct perfcounter *perfcounter; |
284 | GHashTableIter iter; | |
285 | gpointer key; | |
286 | int ret; | |
1fc22eb4 JD |
287 | |
288 | if (!scope) | |
289 | goto end; | |
290 | ||
291 | ret = bt_ctf_get_field_list(event, scope, &list, &count); | |
292 | if (ret < 0) | |
293 | goto end; | |
294 | ||
bb6d72a2 JD |
295 | if (count == 0) |
296 | goto end; | |
297 | ||
298 | g_hash_table_iter_init(&iter, global_perf_liszt); | |
299 | while (g_hash_table_iter_next (&iter, &key, (gpointer) &perfcounter)) { | |
300 | field = bt_ctf_get_field(event, scope, (char *) key); | |
301 | if (field) { | |
302 | int value = bt_ctf_get_uint64(field); | |
1fc22eb4 JD |
303 | if (bt_ctf_field_get_error()) |
304 | continue; | |
bb6d72a2 | 305 | update_perf_value(proc, cpu, (char *) key, value); |
1fc22eb4 JD |
306 | } |
307 | } | |
308 | ||
309 | end: | |
310 | return; | |
311 | } | |
312 | ||
4adc8274 | 313 | void update_perf_counter(struct processtop *proc, const struct bt_ctf_event *event) |
1fc22eb4 | 314 | { |
1fc22eb4 | 315 | struct cputime *cpu; |
3ba84bed | 316 | const struct definition *scope; |
1fc22eb4 | 317 | |
d67167cd | 318 | cpu = get_cpu(get_cpu_id(event)); |
1fc22eb4 JD |
319 | |
320 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
321 | extract_perf_counter_scope(event, scope, proc, cpu); | |
322 | ||
323 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_PACKET_CONTEXT); | |
324 | extract_perf_counter_scope(event, scope, proc, cpu); | |
325 | ||
326 | scope = bt_ctf_get_top_level_scope(event, BT_EVENT_CONTEXT); | |
327 | extract_perf_counter_scope(event, scope, proc, cpu); | |
1fc22eb4 JD |
328 | } |
329 | ||
4adc8274 | 330 | enum bt_cb_ret fix_process_table(struct bt_ctf_event *call_data, |
1fc22eb4 JD |
331 | void *private_data) |
332 | { | |
670078c9 | 333 | int pid, tid, ppid, vpid, vtid, vppid; |
1fc22eb4 JD |
334 | char *comm; |
335 | struct processtop *parent, *child; | |
1fc22eb4 JD |
336 | unsigned long timestamp; |
337 | ||
67a84e40 | 338 | timestamp = bt_ctf_get_timestamp(call_data); |
1fc22eb4 JD |
339 | if (timestamp == -1ULL) |
340 | goto error; | |
341 | ||
1dec520a JD |
342 | pid = get_context_pid(call_data); |
343 | if (pid == -1ULL) { | |
1fc22eb4 JD |
344 | goto error; |
345 | } | |
c941855c | 346 | |
1dec520a JD |
347 | tid = get_context_tid(call_data); |
348 | if (tid == -1ULL) { | |
1fc22eb4 JD |
349 | goto error; |
350 | } | |
1dec520a JD |
351 | ppid = get_context_ppid(call_data); |
352 | if (ppid == -1ULL) { | |
1fc22eb4 JD |
353 | goto error; |
354 | } | |
670078c9 JD |
355 | vpid = get_context_vpid(call_data); |
356 | if (pid == -1ULL) { | |
357 | vpid = -1; | |
358 | } | |
359 | vtid = get_context_vtid(call_data); | |
360 | if (tid == -1ULL) { | |
361 | vtid = -1; | |
362 | } | |
363 | vppid = get_context_vppid(call_data); | |
364 | if (ppid == -1ULL) { | |
365 | vppid = -1; | |
366 | } | |
1dec520a JD |
367 | comm = get_context_comm(call_data); |
368 | if (!comm) { | |
1fc22eb4 JD |
369 | goto error; |
370 | } | |
371 | ||
372 | /* find or create the current process */ | |
373 | child = find_process_tid(<tngtop, tid, comm); | |
374 | if (!child) | |
375 | child = add_proc(<tngtop, tid, comm, timestamp); | |
c941855c JD |
376 | if (!child) |
377 | goto end; | |
670078c9 | 378 | update_proc(child, pid, tid, ppid, vpid, vtid, vppid, comm); |
1fc22eb4 JD |
379 | |
380 | if (pid != tid) { | |
381 | /* find or create the parent */ | |
382 | parent = find_process_tid(<tngtop, pid, comm); | |
383 | if (!parent) { | |
384 | parent = add_proc(<tngtop, pid, comm, timestamp); | |
c941855c JD |
385 | if (parent) |
386 | parent->pid = pid; | |
1fc22eb4 JD |
387 | } |
388 | ||
389 | /* attach the parent to the current process */ | |
390 | child->threadparent = parent; | |
391 | add_thread(parent, child); | |
392 | } | |
393 | ||
394 | update_perf_counter(child, call_data); | |
395 | ||
c941855c | 396 | end: |
1fc22eb4 JD |
397 | return BT_CB_OK; |
398 | ||
399 | error: | |
400 | return BT_CB_ERROR_STOP; | |
401 | } | |
402 | ||
403 | void init_lttngtop() | |
404 | { | |
405 | copies = g_ptr_array_new(); | |
0d91c12a | 406 | global_perf_liszt = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
407 | |
408 | sem_init(&goodtodisplay, 0, 0); | |
409 | sem_init(&goodtoupdate, 0, 1); | |
410 | sem_init(&timer, 0, 1); | |
411 | sem_init(&bootstrap, 0, 0); | |
412 | sem_init(&pause_sem, 0, 1); | |
413 | sem_init(&end_trace_sem, 0, 0); | |
414 | ||
e05a35a6 JD |
415 | reset_global_counters(); |
416 | lttngtop.nbproc = 0; | |
417 | lttngtop.nbthreads = 0; | |
418 | lttngtop.nbfiles = 0; | |
419 | ||
5db6fc65 JD |
420 | lttngtop.process_hash_table = g_hash_table_new(g_direct_hash, |
421 | g_direct_equal); | |
1fc22eb4 JD |
422 | lttngtop.process_table = g_ptr_array_new(); |
423 | lttngtop.files_table = g_ptr_array_new(); | |
424 | lttngtop.cpu_table = g_ptr_array_new(); | |
425 | } | |
426 | ||
c263c4eb | 427 | void usage(FILE *fp) |
1fc22eb4 | 428 | { |
c263c4eb JD |
429 | fprintf(fp, "LTTngTop %s\n\n", VERSION); |
430 | fprintf(fp, "Usage : lttngtop /path/to/trace\n"); | |
1fc22eb4 JD |
431 | } |
432 | ||
433 | /* | |
434 | * Return 0 if caller should continue, < 0 if caller should return | |
435 | * error, > 0 if caller should exit without reporting error. | |
436 | */ | |
437 | static int parse_options(int argc, char **argv) | |
438 | { | |
439 | poptContext pc; | |
440 | int opt, ret = 0; | |
441 | ||
1fc22eb4 JD |
442 | pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 0); |
443 | poptReadDefaultConfig(pc, 0); | |
444 | ||
445 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
446 | switch (opt) { | |
447 | case OPT_HELP: | |
448 | usage(stdout); | |
449 | ret = 1; /* exit cleanly */ | |
450 | goto end; | |
84d2a515 JD |
451 | case OPT_TEXTDUMP: |
452 | opt_textdump = 1; | |
be5b48bd JD |
453 | break; |
454 | case OPT_CHILD: | |
455 | opt_textdump = 1; | |
456 | opt_child = 1; | |
457 | break; | |
458 | case OPT_PID: | |
c941855c | 459 | //opt_textdump = 1; |
be5b48bd | 460 | break; |
1fc22eb4 JD |
461 | default: |
462 | ret = -EINVAL; | |
463 | goto end; | |
464 | } | |
465 | } | |
466 | ||
467 | opt_input_path = poptGetArg(pc); | |
172f5d66 | 468 | |
1fc22eb4 JD |
469 | end: |
470 | if (pc) { | |
471 | poptFreeContext(pc); | |
472 | } | |
473 | return ret; | |
474 | } | |
475 | ||
476 | void iter_trace(struct bt_context *bt_ctx) | |
477 | { | |
478 | struct bt_ctf_iter *iter; | |
479 | struct bt_iter_pos begin_pos; | |
4adc8274 | 480 | const struct bt_ctf_event *event; |
1fc22eb4 JD |
481 | int ret = 0; |
482 | ||
483 | begin_pos.type = BT_SEEK_BEGIN; | |
484 | iter = bt_ctf_iter_create(bt_ctx, &begin_pos, NULL); | |
485 | ||
84d2a515 JD |
486 | if (opt_textdump) { |
487 | bt_ctf_iter_add_callback(iter, 0, NULL, 0, | |
488 | print_timestamp, | |
489 | NULL, NULL, NULL); | |
490 | } else { | |
491 | /* at each event check if we need to refresh */ | |
492 | bt_ctf_iter_add_callback(iter, 0, NULL, 0, | |
493 | check_timestamp, | |
494 | NULL, NULL, NULL); | |
495 | /* at each event, verify the status of the process table */ | |
496 | bt_ctf_iter_add_callback(iter, 0, NULL, 0, | |
497 | fix_process_table, | |
498 | NULL, NULL, NULL); | |
499 | /* to handle the scheduling events */ | |
500 | bt_ctf_iter_add_callback(iter, | |
501 | g_quark_from_static_string("sched_switch"), | |
502 | NULL, 0, handle_sched_switch, NULL, NULL, NULL); | |
503 | /* to clean up the process table */ | |
504 | bt_ctf_iter_add_callback(iter, | |
505 | g_quark_from_static_string("sched_process_free"), | |
506 | NULL, 0, handle_sched_process_free, NULL, NULL, NULL); | |
507 | /* to get all the process from the statedumps */ | |
508 | bt_ctf_iter_add_callback(iter, | |
509 | g_quark_from_static_string( | |
510 | "lttng_statedump_process_state"), | |
511 | NULL, 0, handle_statedump_process_state, | |
512 | NULL, NULL, NULL); | |
513 | ||
514 | /* for IO top */ | |
515 | bt_ctf_iter_add_callback(iter, | |
516 | g_quark_from_static_string("exit_syscall"), | |
517 | NULL, 0, handle_exit_syscall, NULL, NULL, NULL); | |
518 | bt_ctf_iter_add_callback(iter, | |
519 | g_quark_from_static_string("sys_write"), | |
520 | NULL, 0, handle_sys_write, NULL, NULL, NULL); | |
521 | bt_ctf_iter_add_callback(iter, | |
522 | g_quark_from_static_string("sys_read"), | |
523 | NULL, 0, handle_sys_read, NULL, NULL, NULL); | |
524 | bt_ctf_iter_add_callback(iter, | |
525 | g_quark_from_static_string("sys_open"), | |
526 | NULL, 0, handle_sys_open, NULL, NULL, NULL); | |
527 | bt_ctf_iter_add_callback(iter, | |
528 | g_quark_from_static_string("sys_close"), | |
529 | NULL, 0, handle_sys_close, NULL, NULL, NULL); | |
530 | bt_ctf_iter_add_callback(iter, | |
531 | g_quark_from_static_string( | |
ceb3a221 | 532 | "lttng_statedump_file_descriptor"), |
84d2a515 JD |
533 | NULL, 0, handle_statedump_file_descriptor, |
534 | NULL, NULL, NULL); | |
535 | } | |
536 | ||
b208bf29 | 537 | while ((event = bt_ctf_iter_read_event(iter, NULL)) != NULL) { |
37b4b0bb | 538 | if (quit || reload_trace) |
da4a3c1d | 539 | goto end_iter; |
1fc22eb4 JD |
540 | ret = bt_iter_next(bt_ctf_get_iter(iter)); |
541 | if (ret < 0) | |
542 | goto end_iter; | |
543 | } | |
544 | ||
545 | /* block until quit, we reached the end of the trace */ | |
546 | sem_wait(&end_trace_sem); | |
547 | ||
548 | end_iter: | |
06570214 | 549 | bt_ctf_iter_destroy(iter); |
1fc22eb4 JD |
550 | } |
551 | ||
552 | /* | |
553 | * bt_context_add_traces_recursive: Open a trace recursively | |
554 | * (copied from BSD code in converter/babeltrace.c) | |
555 | * | |
556 | * Find each trace present in the subdirectory starting from the given | |
557 | * path, and add them to the context. The packet_seek parameter can be | |
558 | * NULL: this specify to use the default format packet_seek. | |
559 | * | |
560 | * Return: 0 on success, nonzero on failure. | |
561 | * Unable to open toplevel: failure. | |
562 | * Unable to open some subdirectory or file: warn and continue; | |
563 | */ | |
564 | int bt_context_add_traces_recursive(struct bt_context *ctx, const char *path, | |
565 | const char *format_str, | |
566 | void (*packet_seek)(struct stream_pos *pos, | |
567 | size_t offset, int whence)) | |
568 | { | |
569 | FTS *tree; | |
570 | FTSENT *node; | |
571 | GArray *trace_ids; | |
572 | char lpath[PATH_MAX]; | |
573 | char * const paths[2] = { lpath, NULL }; | |
0d567cf1 | 574 | int ret = -1; |
1fc22eb4 JD |
575 | |
576 | /* | |
577 | * Need to copy path, because fts_open can change it. | |
578 | * It is the pointer array, not the strings, that are constant. | |
579 | */ | |
580 | strncpy(lpath, path, PATH_MAX); | |
581 | lpath[PATH_MAX - 1] = '\0'; | |
582 | ||
583 | tree = fts_open(paths, FTS_NOCHDIR | FTS_LOGICAL, 0); | |
584 | if (tree == NULL) { | |
585 | fprintf(stderr, "[error] [Context] Cannot traverse \"%s\" for reading.\n", | |
586 | path); | |
587 | return -EINVAL; | |
588 | } | |
589 | ||
590 | trace_ids = g_array_new(FALSE, TRUE, sizeof(int)); | |
591 | ||
592 | while ((node = fts_read(tree))) { | |
593 | int dirfd, metafd; | |
594 | ||
595 | if (!(node->fts_info & FTS_D)) | |
596 | continue; | |
597 | ||
598 | dirfd = open(node->fts_accpath, 0); | |
599 | if (dirfd < 0) { | |
600 | fprintf(stderr, "[error] [Context] Unable to open trace " | |
601 | "directory file descriptor.\n"); | |
602 | ret = dirfd; | |
603 | goto error; | |
604 | } | |
605 | metafd = openat(dirfd, "metadata", O_RDONLY); | |
606 | if (metafd < 0) { | |
7314c855 JD |
607 | close(dirfd); |
608 | ret = -1; | |
609 | continue; | |
1fc22eb4 JD |
610 | } else { |
611 | int trace_id; | |
612 | ||
613 | ret = close(metafd); | |
614 | if (ret < 0) { | |
615 | perror("close"); | |
616 | goto error; | |
617 | } | |
618 | ret = close(dirfd); | |
619 | if (ret < 0) { | |
620 | perror("close"); | |
621 | goto error; | |
622 | } | |
623 | ||
624 | trace_id = bt_context_add_trace(ctx, | |
625 | node->fts_accpath, format_str, | |
626 | packet_seek, NULL, NULL); | |
627 | if (trace_id < 0) { | |
0d567cf1 | 628 | fprintf(stderr, "[warning] [Context] opening trace \"%s\" from %s " |
1fc22eb4 | 629 | "for reading.\n", node->fts_accpath, path); |
0d567cf1 JD |
630 | /* Allow to skip erroneous traces. */ |
631 | continue; | |
1fc22eb4 JD |
632 | } |
633 | g_array_append_val(trace_ids, trace_id); | |
634 | } | |
635 | } | |
636 | ||
637 | g_array_free(trace_ids, TRUE); | |
0d567cf1 | 638 | return ret; |
1fc22eb4 JD |
639 | |
640 | error: | |
641 | return ret; | |
642 | } | |
643 | ||
4553b4d1 | 644 | static int check_field_requirements(const struct bt_ctf_field_decl *const * field_list, |
a54d0d2c JD |
645 | int field_cnt, int *tid_check, int *pid_check, |
646 | int *procname_check, int *ppid_check) | |
647 | { | |
648 | int j; | |
bb6d72a2 JD |
649 | struct perfcounter *global; |
650 | const char *name; | |
a54d0d2c JD |
651 | |
652 | for (j = 0; j < field_cnt; j++) { | |
bb6d72a2 | 653 | name = bt_ctf_get_decl_field_name(field_list[j]); |
a54d0d2c | 654 | if (*tid_check == 0) { |
bb6d72a2 | 655 | if (strncmp(name, "tid", 3) == 0) |
a54d0d2c | 656 | (*tid_check)++; |
a54d0d2c JD |
657 | } |
658 | if (*pid_check == 0) { | |
bb6d72a2 | 659 | if (strncmp(name, "tid", 3) == 0) |
a54d0d2c JD |
660 | (*pid_check)++; |
661 | } | |
662 | if (*ppid_check == 0) { | |
bb6d72a2 | 663 | if (strncmp(name, "ppid", 4) == 0) |
a54d0d2c JD |
664 | (*ppid_check)++; |
665 | } | |
666 | if (*procname_check == 0) { | |
bb6d72a2 | 667 | if (strncmp(name, "procname", 8) == 0) |
a54d0d2c JD |
668 | (*procname_check)++; |
669 | } | |
bb6d72a2 JD |
670 | if (strncmp(name, "perf_", 5) == 0) { |
671 | global = g_hash_table_lookup(global_perf_liszt, (gpointer) name); | |
672 | if (!global) { | |
673 | global = g_new0(struct perfcounter, 1); | |
674 | /* by default, sort on the first perf context */ | |
675 | if (g_hash_table_size(global_perf_liszt) == 0) | |
676 | global->sort = 1; | |
677 | global->visible = 1; | |
678 | g_hash_table_insert(global_perf_liszt, (gpointer) strdup(name), global); | |
679 | } | |
680 | } | |
a54d0d2c | 681 | } |
bb6d72a2 | 682 | |
a54d0d2c JD |
683 | if (*tid_check == 1 && *pid_check == 1 && *ppid_check == 1 && |
684 | *procname_check == 1) | |
685 | return 0; | |
686 | ||
687 | return -1; | |
688 | } | |
689 | ||
690 | /* | |
691 | * check_requirements: check if the required context informations are available | |
692 | * | |
693 | * If each mandatory context information is available for at least in one | |
694 | * event, return 0 otherwise return -1. | |
a54d0d2c JD |
695 | */ |
696 | int check_requirements(struct bt_context *ctx) | |
697 | { | |
698 | unsigned int i, evt_cnt, field_cnt; | |
699 | struct bt_ctf_event_decl *const * evt_list; | |
700 | const struct bt_ctf_field_decl *const * field_list; | |
701 | int tid_check = 0; | |
702 | int pid_check = 0; | |
703 | int procname_check = 0; | |
704 | int ppid_check = 0; | |
705 | int ret = 0; | |
706 | ||
707 | bt_ctf_get_event_decl_list(0, ctx, &evt_list, &evt_cnt); | |
708 | for (i = 0; i < evt_cnt; i++) { | |
709 | bt_ctf_get_decl_fields(evt_list[i], BT_STREAM_EVENT_CONTEXT, | |
710 | &field_list, &field_cnt); | |
711 | ret = check_field_requirements(field_list, field_cnt, | |
712 | &tid_check, &pid_check, &procname_check, | |
713 | &ppid_check); | |
a54d0d2c JD |
714 | |
715 | bt_ctf_get_decl_fields(evt_list[i], BT_EVENT_CONTEXT, | |
716 | &field_list, &field_cnt); | |
717 | ret = check_field_requirements(field_list, field_cnt, | |
718 | &tid_check, &pid_check, &procname_check, | |
719 | &ppid_check); | |
a54d0d2c JD |
720 | |
721 | bt_ctf_get_decl_fields(evt_list[i], BT_STREAM_PACKET_CONTEXT, | |
722 | &field_list, &field_cnt); | |
723 | ret = check_field_requirements(field_list, field_cnt, | |
724 | &tid_check, &pid_check, &procname_check, | |
725 | &ppid_check); | |
a54d0d2c JD |
726 | } |
727 | ||
728 | if (tid_check == 0) { | |
729 | ret = -1; | |
730 | fprintf(stderr, "[error] missing tid context information\n"); | |
731 | } | |
732 | if (pid_check == 0) { | |
733 | ret = -1; | |
734 | fprintf(stderr, "[error] missing pid context information\n"); | |
735 | } | |
736 | if (ppid_check == 0) { | |
737 | ret = -1; | |
738 | fprintf(stderr, "[error] missing ppid context information\n"); | |
739 | } | |
740 | if (procname_check == 0) { | |
741 | ret = -1; | |
742 | fprintf(stderr, "[error] missing procname context information\n"); | |
743 | } | |
744 | ||
a54d0d2c JD |
745 | return ret; |
746 | } | |
747 | ||
172f5d66 JD |
748 | ssize_t read_subbuffer(struct lttng_consumer_stream *kconsumerd_fd, |
749 | struct lttng_consumer_local_data *ctx) | |
750 | { | |
751 | unsigned long len; | |
752 | int err; | |
753 | long ret = 0; | |
754 | int infd = helper_get_lttng_consumer_stream_wait_fd(kconsumerd_fd); | |
755 | ||
756 | if (helper_get_lttng_consumer_stream_output(kconsumerd_fd) == LTTNG_EVENT_SPLICE) { | |
757 | /* Get the next subbuffer */ | |
172f5d66 JD |
758 | err = helper_kernctl_get_next_subbuf(infd); |
759 | if (err != 0) { | |
760 | ret = errno; | |
761 | perror("Reserving sub buffer failed (everything is normal, " | |
762 | "it is due to concurrency)"); | |
763 | goto end; | |
764 | } | |
765 | /* read the whole subbuffer */ | |
766 | err = helper_kernctl_get_padded_subbuf_size(infd, &len); | |
767 | if (err != 0) { | |
768 | ret = errno; | |
769 | perror("Getting sub-buffer len failed."); | |
770 | goto end; | |
771 | } | |
172f5d66 JD |
772 | |
773 | /* splice the subbuffer to the tracefile */ | |
774 | ret = helper_lttng_consumer_on_read_subbuffer_splice(ctx, kconsumerd_fd, len); | |
775 | if (ret < 0) { | |
776 | /* | |
777 | * display the error but continue processing to try | |
778 | * to release the subbuffer | |
779 | */ | |
780 | fprintf(stderr,"Error splicing to tracefile\n"); | |
781 | } | |
172f5d66 JD |
782 | err = helper_kernctl_put_next_subbuf(infd); |
783 | if (err != 0) { | |
784 | ret = errno; | |
785 | perror("Reserving sub buffer failed (everything is normal, " | |
786 | "it is due to concurrency)"); | |
787 | goto end; | |
788 | } | |
0865cf6b | 789 | sem_post(&metadata_available); |
172f5d66 JD |
790 | } |
791 | ||
792 | end: | |
793 | return 0; | |
794 | } | |
795 | ||
796 | int on_update_fd(int key, uint32_t state) | |
797 | { | |
798 | /* let the lib handle the metadata FD */ | |
799 | if (key == sessiond_metadata) | |
800 | return 0; | |
801 | return 1; | |
802 | } | |
803 | ||
804 | int on_recv_fd(struct lttng_consumer_stream *kconsumerd_fd) | |
805 | { | |
806 | int ret; | |
dbb34d88 | 807 | struct mmap_stream *new_mmap_stream; |
172f5d66 | 808 | |
172f5d66 JD |
809 | /* Opening the tracefile in write mode */ |
810 | if (helper_get_lttng_consumer_stream_path_name(kconsumerd_fd) != NULL) { | |
811 | ret = open(helper_get_lttng_consumer_stream_path_name(kconsumerd_fd), | |
812 | O_WRONLY|O_CREAT|O_TRUNC, S_IRWXU|S_IRWXG|S_IRWXO); | |
813 | if (ret < 0) { | |
814 | perror("open"); | |
815 | goto end; | |
816 | } | |
817 | helper_set_lttng_consumer_stream_out_fd(kconsumerd_fd, ret); | |
818 | } | |
819 | ||
820 | if (helper_get_lttng_consumer_stream_output(kconsumerd_fd) == LTTNG_EVENT_MMAP) { | |
dbb34d88 JD |
821 | new_mmap_stream = malloc(sizeof(struct mmap_stream)); |
822 | new_mmap_stream->fd = helper_get_lttng_consumer_stream_wait_fd( | |
823 | kconsumerd_fd); | |
824 | bt_list_add(&new_mmap_stream->list, &mmap_list.head); | |
172f5d66 JD |
825 | |
826 | g_ptr_array_add(lttng_consumer_stream_array, kconsumerd_fd); | |
c1e6815a JD |
827 | /* keep mmap FDs internally */ |
828 | ret = 1; | |
172f5d66 JD |
829 | } else { |
830 | consumerd_metadata = helper_get_lttng_consumer_stream_wait_fd(kconsumerd_fd); | |
831 | sessiond_metadata = helper_get_lttng_consumer_stream_key(kconsumerd_fd); | |
832 | ret = 0; | |
833 | } | |
834 | ||
37b4b0bb JD |
835 | reload_trace = 1; |
836 | ||
172f5d66 JD |
837 | end: |
838 | return ret; | |
839 | } | |
840 | ||
a440e379 | 841 | void live_consume(struct bt_context **bt_ctx) |
346f2b4c | 842 | { |
346f2b4c | 843 | int ret; |
37b4b0bb | 844 | FILE *metadata_fp; |
346f2b4c | 845 | |
37b4b0bb JD |
846 | sem_wait(&metadata_available); |
847 | if (access("/tmp/livesession/kernel/metadata", F_OK) != 0) { | |
848 | fprintf(stderr,"no metadata\n"); | |
849 | goto end; | |
f03aeb2f | 850 | } |
37b4b0bb | 851 | metadata_fp = fopen("/tmp/livesession/kernel/metadata", "r"); |
67a84e40 | 852 | |
37b4b0bb JD |
853 | *bt_ctx = bt_context_create(); |
854 | ret = bt_context_add_trace(*bt_ctx, NULL, "ctf", | |
855 | lttngtop_ctf_packet_seek, &mmap_list, metadata_fp); | |
856 | if (ret < 0) { | |
857 | printf("Error adding trace\n"); | |
858 | goto end; | |
346f2b4c | 859 | } |
dbb34d88 | 860 | |
a440e379 JD |
861 | end: |
862 | return; | |
346f2b4c | 863 | } |
172f5d66 JD |
864 | |
865 | int setup_consumer(char *command_sock_path, pthread_t *threads, | |
866 | struct lttng_consumer_local_data *ctx) | |
867 | { | |
868 | int ret = 0; | |
869 | ||
870 | ctx = helper_lttng_consumer_create(HELPER_LTTNG_CONSUMER_KERNEL, | |
871 | read_subbuffer, NULL, on_recv_fd, on_update_fd); | |
872 | if (!ctx) | |
873 | goto end; | |
874 | ||
875 | unlink(command_sock_path); | |
876 | helper_lttng_consumer_set_command_sock_path(ctx, command_sock_path); | |
877 | helper_lttng_consumer_init(); | |
878 | ||
879 | /* Create the thread to manage the receive of fd */ | |
880 | ret = pthread_create(&threads[0], NULL, helper_lttng_consumer_thread_receive_fds, | |
881 | (void *) ctx); | |
882 | if (ret != 0) { | |
67a84e40 | 883 | perror("pthread_create receive fd"); |
172f5d66 JD |
884 | goto end; |
885 | } | |
346f2b4c JD |
886 | /* Create thread to manage the polling/writing of traces */ |
887 | ret = pthread_create(&threads[1], NULL, helper_lttng_consumer_thread_poll_fds, | |
888 | (void *) ctx); | |
889 | if (ret != 0) { | |
67a84e40 | 890 | perror("pthread_create poll fd"); |
346f2b4c JD |
891 | goto end; |
892 | } | |
893 | ||
172f5d66 JD |
894 | end: |
895 | return ret; | |
896 | } | |
897 | ||
33ff396d | 898 | int setup_live_tracing() |
172f5d66 JD |
899 | { |
900 | struct lttng_domain dom; | |
901 | struct lttng_channel chan; | |
902 | char *channel_name = "mmapchan"; | |
172f5d66 JD |
903 | struct lttng_event ev; |
904 | int ret = 0; | |
905 | char *command_sock_path = "/tmp/consumerd_sock"; | |
906 | static pthread_t threads[2]; /* recv_fd, poll */ | |
907 | struct lttng_event_context kctxpid, kctxcomm, kctxppid, kctxtid; | |
172f5d66 JD |
908 | |
909 | struct lttng_handle *handle; | |
910 | ||
911 | BT_INIT_LIST_HEAD(&mmap_list.head); | |
912 | ||
913 | lttng_consumer_stream_array = g_ptr_array_new(); | |
914 | ||
915 | if ((ret = setup_consumer(command_sock_path, threads, ctx)) < 0) { | |
916 | fprintf(stderr,"error setting up consumer\n"); | |
33ff396d | 917 | goto error; |
172f5d66 JD |
918 | } |
919 | ||
920 | available_snapshots = g_ptr_array_new(); | |
921 | ||
922 | /* setup the session */ | |
923 | dom.type = LTTNG_DOMAIN_KERNEL; | |
924 | ||
a440e379 | 925 | ret = unlink("/tmp/livesession"); |
172f5d66 | 926 | |
f03aeb2f | 927 | lttng_destroy_session("test"); |
172f5d66 JD |
928 | if ((ret = lttng_create_session("test", "/tmp/livesession")) < 0) { |
929 | fprintf(stderr,"error creating the session : %s\n", | |
930 | helper_lttcomm_get_readable_code(ret)); | |
33ff396d | 931 | goto error; |
172f5d66 JD |
932 | } |
933 | ||
934 | if ((handle = lttng_create_handle("test", &dom)) == NULL) { | |
935 | fprintf(stderr,"error creating handle\n"); | |
33ff396d | 936 | goto error_session; |
172f5d66 JD |
937 | } |
938 | ||
37b4b0bb JD |
939 | /* |
940 | * FIXME : need to let the | |
941 | * helper_lttng_consumer_thread_receive_fds create the | |
942 | * socket. | |
943 | * Cleaner solution ? | |
944 | */ | |
945 | while (access(command_sock_path, F_OK)) { | |
946 | sleep(0.1); | |
947 | } | |
948 | ||
172f5d66 JD |
949 | if ((ret = lttng_register_consumer(handle, command_sock_path)) < 0) { |
950 | fprintf(stderr,"error registering consumer : %s\n", | |
951 | helper_lttcomm_get_readable_code(ret)); | |
33ff396d | 952 | goto error_session; |
172f5d66 JD |
953 | } |
954 | ||
955 | strcpy(chan.name, channel_name); | |
67a84e40 | 956 | chan.attr.overwrite = 0; |
c941855c | 957 | if (opt_pid && opt_textdump) { |
c56c5515 JD |
958 | chan.attr.subbuf_size = 32768; |
959 | chan.attr.num_subbuf = 8; | |
960 | } else { | |
961 | chan.attr.subbuf_size = 1048576; /* 1MB */ | |
962 | chan.attr.num_subbuf = 4; | |
963 | } | |
172f5d66 JD |
964 | chan.attr.switch_timer_interval = 0; |
965 | chan.attr.read_timer_interval = 200; | |
966 | chan.attr.output = LTTNG_EVENT_MMAP; | |
967 | ||
968 | if ((ret = lttng_enable_channel(handle, &chan)) < 0) { | |
154f4a27 JD |
969 | fprintf(stderr,"error creating channel : %s\n", |
970 | helper_lttcomm_get_readable_code(ret)); | |
33ff396d | 971 | goto error_session; |
172f5d66 JD |
972 | } |
973 | ||
154f4a27 JD |
974 | memset(&ev, '\0', sizeof(struct lttng_event)); |
975 | //sprintf(ev.name, "sched_switch"); | |
c941855c | 976 | // if (!opt_pid) { |
c56c5515 JD |
977 | ev.type = LTTNG_EVENT_TRACEPOINT; |
978 | if ((ret = lttng_enable_event(handle, &ev, channel_name)) < 0) { | |
979 | fprintf(stderr,"error enabling event : %s\n", | |
980 | helper_lttcomm_get_readable_code(ret)); | |
981 | goto error_session; | |
982 | } | |
c941855c | 983 | // } |
172f5d66 | 984 | |
84d2a515 JD |
985 | ev.type = LTTNG_EVENT_SYSCALL; |
986 | if ((ret = lttng_enable_event(handle, &ev, channel_name)) < 0) { | |
987 | fprintf(stderr,"error enabling syscalls : %s\n", | |
988 | helper_lttcomm_get_readable_code(ret)); | |
33ff396d | 989 | goto error_session; |
84d2a515 JD |
990 | } |
991 | ||
172f5d66 JD |
992 | kctxpid.ctx = LTTNG_EVENT_CONTEXT_PID; |
993 | lttng_add_context(handle, &kctxpid, NULL, NULL); | |
172f5d66 JD |
994 | kctxtid.ctx = LTTNG_EVENT_CONTEXT_TID; |
995 | lttng_add_context(handle, &kctxtid, NULL, NULL); | |
c941855c | 996 | // if (!opt_pid) { |
c56c5515 JD |
997 | kctxppid.ctx = LTTNG_EVENT_CONTEXT_PPID; |
998 | lttng_add_context(handle, &kctxppid, NULL, NULL); | |
999 | kctxcomm.ctx = LTTNG_EVENT_CONTEXT_PROCNAME; | |
1000 | lttng_add_context(handle, &kctxcomm, NULL, NULL); | |
1001 | kctxpid.ctx = LTTNG_EVENT_CONTEXT_VPID; | |
1002 | lttng_add_context(handle, &kctxpid, NULL, NULL); | |
1003 | kctxtid.ctx = LTTNG_EVENT_CONTEXT_VTID; | |
1004 | lttng_add_context(handle, &kctxtid, NULL, NULL); | |
c941855c | 1005 | // } |
172f5d66 JD |
1006 | |
1007 | if ((ret = lttng_start_tracing("test")) < 0) { | |
154f4a27 JD |
1008 | fprintf(stderr,"error starting tracing : %s\n", |
1009 | helper_lttcomm_get_readable_code(ret)); | |
33ff396d | 1010 | goto error_session; |
172f5d66 JD |
1011 | } |
1012 | ||
1013 | helper_kernctl_buffer_flush(consumerd_metadata); | |
346f2b4c | 1014 | |
172f5d66 | 1015 | /* block until metadata is ready */ |
0865cf6b | 1016 | sem_init(&metadata_available, 0, 0); |
172f5d66 | 1017 | |
33ff396d JD |
1018 | return 0; |
1019 | ||
1020 | error_session: | |
1021 | lttng_destroy_session("test"); | |
1022 | error: | |
1023 | return -1; | |
172f5d66 JD |
1024 | } |
1025 | ||
1fc22eb4 JD |
1026 | int main(int argc, char **argv) |
1027 | { | |
1028 | int ret; | |
1029 | struct bt_context *bt_ctx = NULL; | |
37b4b0bb JD |
1030 | struct mmap_stream *mmap_info; |
1031 | unsigned long mmap_len; | |
1fc22eb4 JD |
1032 | |
1033 | ret = parse_options(argc, argv); | |
1034 | if (ret < 0) { | |
1035 | fprintf(stdout, "Error parsing options.\n\n"); | |
1036 | usage(stdout); | |
1037 | exit(EXIT_FAILURE); | |
1038 | } else if (ret > 0) { | |
1039 | exit(EXIT_SUCCESS); | |
1040 | } | |
1041 | ||
172f5d66 | 1042 | if (!opt_input_path) { |
828afa52 JD |
1043 | if (opt_textdump) { |
1044 | signal(SIGTERM, handle_textdump_sigterm); | |
1045 | signal(SIGINT, handle_textdump_sigterm); | |
1046 | } | |
33ff396d JD |
1047 | ret = setup_live_tracing(); |
1048 | if (ret < 0) { | |
1049 | goto end; | |
1050 | } | |
84d2a515 JD |
1051 | init_lttngtop(); |
1052 | if (!opt_textdump) { | |
1053 | pthread_create(&display_thread, NULL, ncurses_display, (void *) NULL); | |
1054 | pthread_create(&timer_thread, NULL, refresh_thread, (void *) NULL); | |
1055 | } | |
37b4b0bb JD |
1056 | while (!quit) { |
1057 | reload_trace = 0; | |
1058 | live_consume(&bt_ctx); | |
1059 | iter_trace(bt_ctx); | |
1060 | ret = bt_context_remove_trace(bt_ctx, 0); | |
1061 | if (ret != 0) | |
1062 | fprintf(stderr, "error removing trace\n"); | |
1063 | if (bt_ctx) { | |
1064 | bt_context_put(bt_ctx); | |
1065 | } | |
1066 | ||
1067 | /* | |
1068 | * since we receive all FDs every time there is an | |
1069 | * update and the FD number is different every time, | |
1070 | * we don't know which one are valid. | |
1071 | * so we check if all FDs are usable with a simple | |
1072 | * ioctl call. | |
1073 | */ | |
1074 | bt_list_for_each_entry(mmap_info, &mmap_list.head, list) { | |
1075 | ret = helper_kernctl_get_mmap_len(mmap_info->fd, &mmap_len); | |
1076 | if (ret != 0) { | |
37b4b0bb JD |
1077 | bt_list_del(&mmap_info->list); |
1078 | } | |
1079 | } | |
1080 | sem_post(&metadata_available); | |
1081 | } | |
a440e379 | 1082 | |
da4a3c1d | 1083 | pthread_join(timer_thread, NULL); |
a440e379 JD |
1084 | quit = 1; |
1085 | pthread_join(display_thread, NULL); | |
84d2a515 | 1086 | |
67a84e40 | 1087 | lttng_stop_tracing("test"); |
67a84e40 JD |
1088 | lttng_destroy_session("test"); |
1089 | ||
1fc22eb4 | 1090 | goto end; |
172f5d66 JD |
1091 | } else { |
1092 | init_lttngtop(); | |
1093 | ||
1094 | bt_ctx = bt_context_create(); | |
1095 | ret = bt_context_add_traces_recursive(bt_ctx, opt_input_path, "ctf", NULL); | |
1096 | if (ret < 0) { | |
1097 | fprintf(stderr, "[error] Opening the trace\n"); | |
1098 | goto end; | |
1099 | } | |
1fc22eb4 | 1100 | |
172f5d66 JD |
1101 | ret = check_requirements(bt_ctx); |
1102 | if (ret < 0) { | |
1103 | fprintf(stderr, "[error] some mandatory contexts were missing, exiting.\n"); | |
1104 | goto end; | |
1105 | } | |
1106 | pthread_create(&display_thread, NULL, ncurses_display, (void *) NULL); | |
1107 | pthread_create(&timer_thread, NULL, refresh_thread, (void *) NULL); | |
1fc22eb4 | 1108 | |
172f5d66 | 1109 | iter_trace(bt_ctx); |
1fc22eb4 | 1110 | |
172f5d66 | 1111 | pthread_join(display_thread, NULL); |
da4a3c1d | 1112 | quit = 1; |
172f5d66 JD |
1113 | pthread_join(timer_thread, NULL); |
1114 | } | |
1fc22eb4 JD |
1115 | |
1116 | end: | |
172f5d66 JD |
1117 | if (bt_ctx) |
1118 | bt_context_put(bt_ctx); | |
1119 | ||
1fc22eb4 JD |
1120 | return 0; |
1121 | } |