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