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> |
1fc22eb4 JD |
40 | |
41 | #include "lttngtoptypes.h" | |
42 | #include "cputop.h" | |
43 | #include "iostreamtop.h" | |
44 | #include "cursesdisplay.h" | |
45 | #include "common.h" | |
46 | ||
47 | #define DEFAULT_FILE_ARRAY_SIZE 1 | |
48 | ||
49 | const char *opt_input_path; | |
50 | ||
51 | struct lttngtop *copy; | |
52 | pthread_t display_thread; | |
53 | pthread_t timer_thread; | |
54 | ||
55 | unsigned long refresh_display = 1 * NSEC_PER_SEC; | |
56 | unsigned long last_display_update = 0; | |
57 | int quit = 0; | |
58 | ||
59 | enum { | |
60 | OPT_NONE = 0, | |
61 | OPT_HELP, | |
62 | OPT_LIST, | |
63 | OPT_VERBOSE, | |
64 | OPT_DEBUG, | |
65 | OPT_NAMES, | |
66 | }; | |
67 | ||
68 | static struct poptOption long_options[] = { | |
69 | /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ | |
70 | { "help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL }, | |
71 | { NULL, 0, 0, NULL, 0, NULL, NULL }, | |
72 | }; | |
73 | ||
74 | void *refresh_thread(void *p) | |
75 | { | |
76 | while (1) { | |
85db4618 JD |
77 | if (quit) |
78 | return NULL; | |
1fc22eb4 JD |
79 | sem_wait(&pause_sem); |
80 | sem_post(&pause_sem); | |
81 | sem_post(&timer); | |
82 | sleep(refresh_display/NSEC_PER_SEC); | |
83 | } | |
84 | } | |
85 | ||
86 | void *ncurses_display(void *p) | |
87 | { | |
88 | unsigned int current_display_index = 0; | |
89 | ||
90 | sem_wait(&bootstrap); | |
b332d28f JD |
91 | /* |
92 | * Prevent the 1 second delay when we hit ESC | |
93 | */ | |
94 | ESCDELAY = 0; | |
1fc22eb4 JD |
95 | init_ncurses(); |
96 | ||
97 | while (1) { | |
98 | sem_wait(&timer); | |
99 | sem_wait(&goodtodisplay); | |
100 | sem_wait(&pause_sem); | |
101 | ||
102 | copy = g_ptr_array_index(copies, current_display_index); | |
85db4618 JD |
103 | assert(copy); |
104 | display(current_display_index++); | |
1fc22eb4 JD |
105 | |
106 | sem_post(&goodtoupdate); | |
107 | sem_post(&pause_sem); | |
108 | ||
109 | if (quit) { | |
110 | reset_ncurses(); | |
111 | pthread_exit(0); | |
112 | } | |
113 | } | |
114 | } | |
115 | ||
116 | /* | |
117 | * hook on each event to check the timestamp and refresh the display if | |
118 | * necessary | |
119 | */ | |
4adc8274 | 120 | enum bt_cb_ret check_timestamp(struct bt_ctf_event *call_data, void *private_data) |
1fc22eb4 JD |
121 | { |
122 | unsigned long timestamp; | |
123 | ||
124 | timestamp = bt_ctf_get_timestamp(call_data); | |
125 | if (timestamp == -1ULL) | |
126 | goto error; | |
127 | ||
128 | if (last_display_update == 0) | |
129 | last_display_update = timestamp; | |
130 | ||
131 | if (timestamp - last_display_update >= refresh_display) { | |
132 | sem_wait(&goodtoupdate); | |
133 | g_ptr_array_add(copies, get_copy_lttngtop(last_display_update, | |
134 | timestamp)); | |
135 | sem_post(&goodtodisplay); | |
136 | sem_post(&bootstrap); | |
137 | last_display_update = timestamp; | |
138 | } | |
139 | return BT_CB_OK; | |
140 | ||
141 | error: | |
142 | fprintf(stderr, "check_timestamp callback error\n"); | |
143 | return BT_CB_ERROR_STOP; | |
144 | } | |
145 | ||
146 | /* | |
147 | * get_perf_counter : get or create and return a perf_counter struct for | |
148 | * either a process or a cpu (only one of the 2 parameters mandatory) | |
149 | */ | |
150 | struct perfcounter *get_perf_counter(const char *name, struct processtop *proc, | |
151 | struct cputime *cpu) | |
152 | { | |
153 | struct perfcounter *ret, *global; | |
154 | GHashTable *table; | |
155 | ||
156 | if (proc) | |
157 | table = proc->perf; | |
158 | else if (cpu) | |
159 | table = cpu->perf; | |
160 | else | |
161 | goto error; | |
162 | ||
163 | ret = g_hash_table_lookup(table, (gpointer) name); | |
164 | if (ret) | |
165 | goto end; | |
166 | ||
559c9f86 | 167 | ret = g_new0(struct perfcounter, 1); |
1fc22eb4 JD |
168 | /* by default, make it visible in the UI */ |
169 | ret->visible = 1; | |
85db4618 | 170 | g_hash_table_insert(table, (gpointer) strdup(name), ret); |
1fc22eb4 | 171 | |
0d91c12a | 172 | global = g_hash_table_lookup(global_perf_liszt, (gpointer) name); |
1fc22eb4 | 173 | if (!global) { |
559c9f86 | 174 | global = g_new0(struct perfcounter, 1); |
1fc22eb4 JD |
175 | memcpy(global, ret, sizeof(struct perfcounter)); |
176 | /* by default, sort on the first perf context */ | |
0d91c12a | 177 | if (g_hash_table_size(global_perf_liszt) == 0) |
1fc22eb4 | 178 | global->sort = 1; |
0d91c12a | 179 | g_hash_table_insert(global_perf_liszt, (gpointer) strdup(name), global); |
1fc22eb4 JD |
180 | } |
181 | ||
182 | end: | |
183 | return ret; | |
184 | ||
185 | error: | |
186 | return NULL; | |
187 | } | |
188 | ||
189 | void update_perf_value(struct processtop *proc, struct cputime *cpu, | |
190 | const char *name, int value) | |
191 | { | |
192 | struct perfcounter *cpu_perf, *process_perf; | |
193 | ||
194 | cpu_perf = get_perf_counter(name, NULL, cpu); | |
195 | if (cpu_perf->count < value) { | |
196 | process_perf = get_perf_counter(name, proc, NULL); | |
197 | process_perf->count += value - cpu_perf->count; | |
198 | cpu_perf->count = value; | |
199 | } | |
200 | } | |
201 | ||
4adc8274 | 202 | void extract_perf_counter_scope(const struct bt_ctf_event *event, |
3ba84bed | 203 | const struct definition *scope, |
1fc22eb4 JD |
204 | struct processtop *proc, |
205 | struct cputime *cpu) | |
206 | { | |
207 | struct definition const * const *list = NULL; | |
208 | unsigned int count; | |
209 | int i, ret; | |
210 | ||
211 | if (!scope) | |
212 | goto end; | |
213 | ||
214 | ret = bt_ctf_get_field_list(event, scope, &list, &count); | |
215 | if (ret < 0) | |
216 | goto end; | |
217 | ||
218 | for (i = 0; i < count; i++) { | |
219 | const char *name = bt_ctf_field_name(list[i]); | |
6419078d | 220 | if (strncmp(name, "perf_", 5) == 0) { |
1fc22eb4 JD |
221 | int value = bt_ctf_get_uint64(list[i]); |
222 | if (bt_ctf_field_get_error()) | |
223 | continue; | |
224 | update_perf_value(proc, cpu, name, value); | |
225 | } | |
226 | } | |
227 | ||
228 | end: | |
229 | return; | |
230 | } | |
231 | ||
4adc8274 | 232 | void update_perf_counter(struct processtop *proc, const struct bt_ctf_event *event) |
1fc22eb4 | 233 | { |
1fc22eb4 | 234 | struct cputime *cpu; |
3ba84bed | 235 | const struct definition *scope; |
1fc22eb4 | 236 | |
d67167cd | 237 | cpu = get_cpu(get_cpu_id(event)); |
1fc22eb4 JD |
238 | |
239 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_EVENT_CONTEXT); | |
240 | extract_perf_counter_scope(event, scope, proc, cpu); | |
241 | ||
242 | scope = bt_ctf_get_top_level_scope(event, BT_STREAM_PACKET_CONTEXT); | |
243 | extract_perf_counter_scope(event, scope, proc, cpu); | |
244 | ||
245 | scope = bt_ctf_get_top_level_scope(event, BT_EVENT_CONTEXT); | |
246 | extract_perf_counter_scope(event, scope, proc, cpu); | |
1fc22eb4 JD |
247 | } |
248 | ||
4adc8274 | 249 | enum bt_cb_ret fix_process_table(struct bt_ctf_event *call_data, |
1fc22eb4 JD |
250 | void *private_data) |
251 | { | |
252 | int pid, tid, ppid; | |
253 | char *comm; | |
254 | struct processtop *parent, *child; | |
1fc22eb4 JD |
255 | unsigned long timestamp; |
256 | ||
1fc22eb4 JD |
257 | timestamp = bt_ctf_get_timestamp(call_data); |
258 | if (timestamp == -1ULL) | |
259 | goto error; | |
260 | ||
1dec520a JD |
261 | pid = get_context_pid(call_data); |
262 | if (pid == -1ULL) { | |
1fc22eb4 JD |
263 | goto error; |
264 | } | |
1dec520a JD |
265 | tid = get_context_tid(call_data); |
266 | if (tid == -1ULL) { | |
1fc22eb4 JD |
267 | goto error; |
268 | } | |
1dec520a JD |
269 | ppid = get_context_ppid(call_data); |
270 | if (ppid == -1ULL) { | |
1fc22eb4 JD |
271 | goto error; |
272 | } | |
1dec520a JD |
273 | comm = get_context_comm(call_data); |
274 | if (!comm) { | |
1fc22eb4 JD |
275 | goto error; |
276 | } | |
277 | ||
278 | /* find or create the current process */ | |
279 | child = find_process_tid(<tngtop, tid, comm); | |
280 | if (!child) | |
281 | child = add_proc(<tngtop, tid, comm, timestamp); | |
282 | update_proc(child, pid, tid, ppid, comm); | |
283 | ||
284 | if (pid != tid) { | |
285 | /* find or create the parent */ | |
286 | parent = find_process_tid(<tngtop, pid, comm); | |
287 | if (!parent) { | |
288 | parent = add_proc(<tngtop, pid, comm, timestamp); | |
289 | parent->pid = pid; | |
290 | } | |
291 | ||
292 | /* attach the parent to the current process */ | |
293 | child->threadparent = parent; | |
294 | add_thread(parent, child); | |
295 | } | |
296 | ||
297 | update_perf_counter(child, call_data); | |
298 | ||
299 | return BT_CB_OK; | |
300 | ||
301 | error: | |
302 | return BT_CB_ERROR_STOP; | |
303 | } | |
304 | ||
305 | void init_lttngtop() | |
306 | { | |
307 | copies = g_ptr_array_new(); | |
0d91c12a | 308 | global_perf_liszt = g_hash_table_new(g_str_hash, g_str_equal); |
1fc22eb4 JD |
309 | |
310 | sem_init(&goodtodisplay, 0, 0); | |
311 | sem_init(&goodtoupdate, 0, 1); | |
312 | sem_init(&timer, 0, 1); | |
313 | sem_init(&bootstrap, 0, 0); | |
314 | sem_init(&pause_sem, 0, 1); | |
315 | sem_init(&end_trace_sem, 0, 0); | |
316 | ||
e05a35a6 JD |
317 | reset_global_counters(); |
318 | lttngtop.nbproc = 0; | |
319 | lttngtop.nbthreads = 0; | |
320 | lttngtop.nbfiles = 0; | |
321 | ||
1fc22eb4 JD |
322 | lttngtop.process_table = g_ptr_array_new(); |
323 | lttngtop.files_table = g_ptr_array_new(); | |
324 | lttngtop.cpu_table = g_ptr_array_new(); | |
325 | } | |
326 | ||
c263c4eb | 327 | void usage(FILE *fp) |
1fc22eb4 | 328 | { |
c263c4eb JD |
329 | fprintf(fp, "LTTngTop %s\n\n", VERSION); |
330 | fprintf(fp, "Usage : lttngtop /path/to/trace\n"); | |
1fc22eb4 JD |
331 | } |
332 | ||
333 | /* | |
334 | * Return 0 if caller should continue, < 0 if caller should return | |
335 | * error, > 0 if caller should exit without reporting error. | |
336 | */ | |
337 | static int parse_options(int argc, char **argv) | |
338 | { | |
339 | poptContext pc; | |
340 | int opt, ret = 0; | |
341 | ||
342 | if (argc == 1) { | |
343 | usage(stdout); | |
344 | return 1; /* exit cleanly */ | |
345 | } | |
346 | ||
347 | pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 0); | |
348 | poptReadDefaultConfig(pc, 0); | |
349 | ||
350 | while ((opt = poptGetNextOpt(pc)) != -1) { | |
351 | switch (opt) { | |
352 | case OPT_HELP: | |
353 | usage(stdout); | |
354 | ret = 1; /* exit cleanly */ | |
355 | goto end; | |
1fc22eb4 JD |
356 | default: |
357 | ret = -EINVAL; | |
358 | goto end; | |
359 | } | |
360 | } | |
361 | ||
362 | opt_input_path = poptGetArg(pc); | |
363 | if (!opt_input_path) { | |
364 | ret = -EINVAL; | |
365 | goto end; | |
366 | } | |
367 | end: | |
368 | if (pc) { | |
369 | poptFreeContext(pc); | |
370 | } | |
371 | return ret; | |
372 | } | |
373 | ||
374 | void iter_trace(struct bt_context *bt_ctx) | |
375 | { | |
376 | struct bt_ctf_iter *iter; | |
377 | struct bt_iter_pos begin_pos; | |
4adc8274 | 378 | const struct bt_ctf_event *event; |
1fc22eb4 JD |
379 | int ret = 0; |
380 | ||
381 | begin_pos.type = BT_SEEK_BEGIN; | |
382 | iter = bt_ctf_iter_create(bt_ctx, &begin_pos, NULL); | |
383 | ||
384 | /* at each event check if we need to refresh */ | |
385 | bt_ctf_iter_add_callback(iter, 0, NULL, 0, | |
386 | check_timestamp, | |
387 | NULL, NULL, NULL); | |
388 | /* at each event, verify the status of the process table */ | |
389 | bt_ctf_iter_add_callback(iter, 0, NULL, 0, | |
390 | fix_process_table, | |
391 | NULL, NULL, NULL); | |
392 | /* to handle the scheduling events */ | |
393 | bt_ctf_iter_add_callback(iter, | |
394 | g_quark_from_static_string("sched_switch"), | |
395 | NULL, 0, handle_sched_switch, NULL, NULL, NULL); | |
396 | /* to clean up the process table */ | |
397 | bt_ctf_iter_add_callback(iter, | |
398 | g_quark_from_static_string("sched_process_free"), | |
399 | NULL, 0, handle_sched_process_free, NULL, NULL, NULL); | |
928f18a6 MB |
400 | /* to get all the process from the statedumps */ |
401 | bt_ctf_iter_add_callback(iter, | |
402 | g_quark_from_static_string( | |
403 | "lttng_statedump_process_state"), | |
404 | NULL, 0, handle_statedump_process_state, | |
405 | NULL, NULL, NULL); | |
1fc22eb4 JD |
406 | |
407 | /* for IO top */ | |
408 | bt_ctf_iter_add_callback(iter, | |
409 | g_quark_from_static_string("exit_syscall"), | |
410 | NULL, 0, handle_exit_syscall, NULL, NULL, NULL); | |
411 | bt_ctf_iter_add_callback(iter, | |
412 | g_quark_from_static_string("sys_write"), | |
413 | NULL, 0, handle_sys_write, NULL, NULL, NULL); | |
414 | bt_ctf_iter_add_callback(iter, | |
415 | g_quark_from_static_string("sys_read"), | |
416 | NULL, 0, handle_sys_read, NULL, NULL, NULL); | |
b093de8a MB |
417 | bt_ctf_iter_add_callback(iter, |
418 | g_quark_from_static_string("sys_open"), | |
419 | NULL, 0, handle_sys_open, NULL, NULL, NULL); | |
b093de8a MB |
420 | bt_ctf_iter_add_callback(iter, |
421 | g_quark_from_static_string("sys_close"), | |
422 | NULL, 0, handle_sys_close, NULL, NULL, NULL); | |
ceb3a221 MB |
423 | bt_ctf_iter_add_callback(iter, |
424 | g_quark_from_static_string( | |
425 | "lttng_statedump_file_descriptor"), | |
426 | NULL, 0, handle_statedump_file_descriptor, | |
427 | NULL, NULL, NULL); | |
59288610 | 428 | |
1fc22eb4 JD |
429 | while ((event = bt_ctf_iter_read_event(iter)) != NULL) { |
430 | ret = bt_iter_next(bt_ctf_get_iter(iter)); | |
431 | if (ret < 0) | |
432 | goto end_iter; | |
433 | } | |
434 | ||
435 | /* block until quit, we reached the end of the trace */ | |
436 | sem_wait(&end_trace_sem); | |
437 | ||
438 | end_iter: | |
06570214 | 439 | bt_ctf_iter_destroy(iter); |
1fc22eb4 JD |
440 | } |
441 | ||
442 | /* | |
443 | * bt_context_add_traces_recursive: Open a trace recursively | |
444 | * (copied from BSD code in converter/babeltrace.c) | |
445 | * | |
446 | * Find each trace present in the subdirectory starting from the given | |
447 | * path, and add them to the context. The packet_seek parameter can be | |
448 | * NULL: this specify to use the default format packet_seek. | |
449 | * | |
450 | * Return: 0 on success, nonzero on failure. | |
451 | * Unable to open toplevel: failure. | |
452 | * Unable to open some subdirectory or file: warn and continue; | |
453 | */ | |
454 | int bt_context_add_traces_recursive(struct bt_context *ctx, const char *path, | |
455 | const char *format_str, | |
456 | void (*packet_seek)(struct stream_pos *pos, | |
457 | size_t offset, int whence)) | |
458 | { | |
459 | FTS *tree; | |
460 | FTSENT *node; | |
461 | GArray *trace_ids; | |
462 | char lpath[PATH_MAX]; | |
463 | char * const paths[2] = { lpath, NULL }; | |
0d567cf1 | 464 | int ret = -1; |
1fc22eb4 JD |
465 | |
466 | /* | |
467 | * Need to copy path, because fts_open can change it. | |
468 | * It is the pointer array, not the strings, that are constant. | |
469 | */ | |
470 | strncpy(lpath, path, PATH_MAX); | |
471 | lpath[PATH_MAX - 1] = '\0'; | |
472 | ||
473 | tree = fts_open(paths, FTS_NOCHDIR | FTS_LOGICAL, 0); | |
474 | if (tree == NULL) { | |
475 | fprintf(stderr, "[error] [Context] Cannot traverse \"%s\" for reading.\n", | |
476 | path); | |
477 | return -EINVAL; | |
478 | } | |
479 | ||
480 | trace_ids = g_array_new(FALSE, TRUE, sizeof(int)); | |
481 | ||
482 | while ((node = fts_read(tree))) { | |
483 | int dirfd, metafd; | |
484 | ||
485 | if (!(node->fts_info & FTS_D)) | |
486 | continue; | |
487 | ||
488 | dirfd = open(node->fts_accpath, 0); | |
489 | if (dirfd < 0) { | |
490 | fprintf(stderr, "[error] [Context] Unable to open trace " | |
491 | "directory file descriptor.\n"); | |
492 | ret = dirfd; | |
493 | goto error; | |
494 | } | |
495 | metafd = openat(dirfd, "metadata", O_RDONLY); | |
496 | if (metafd < 0) { | |
7314c855 JD |
497 | close(dirfd); |
498 | ret = -1; | |
499 | continue; | |
1fc22eb4 JD |
500 | } else { |
501 | int trace_id; | |
502 | ||
503 | ret = close(metafd); | |
504 | if (ret < 0) { | |
505 | perror("close"); | |
506 | goto error; | |
507 | } | |
508 | ret = close(dirfd); | |
509 | if (ret < 0) { | |
510 | perror("close"); | |
511 | goto error; | |
512 | } | |
513 | ||
514 | trace_id = bt_context_add_trace(ctx, | |
515 | node->fts_accpath, format_str, | |
516 | packet_seek, NULL, NULL); | |
517 | if (trace_id < 0) { | |
0d567cf1 | 518 | fprintf(stderr, "[warning] [Context] opening trace \"%s\" from %s " |
1fc22eb4 | 519 | "for reading.\n", node->fts_accpath, path); |
0d567cf1 JD |
520 | /* Allow to skip erroneous traces. */ |
521 | continue; | |
1fc22eb4 JD |
522 | } |
523 | g_array_append_val(trace_ids, trace_id); | |
524 | } | |
525 | } | |
526 | ||
527 | g_array_free(trace_ids, TRUE); | |
0d567cf1 | 528 | return ret; |
1fc22eb4 JD |
529 | |
530 | error: | |
531 | return ret; | |
532 | } | |
533 | ||
4553b4d1 | 534 | static int check_field_requirements(const struct bt_ctf_field_decl *const * field_list, |
a54d0d2c JD |
535 | int field_cnt, int *tid_check, int *pid_check, |
536 | int *procname_check, int *ppid_check) | |
537 | { | |
538 | int j; | |
539 | ||
540 | for (j = 0; j < field_cnt; j++) { | |
541 | if (*tid_check == 0) { | |
542 | if (strncmp(bt_ctf_get_decl_field_name(field_list[j]), "tid", 3) == 0) { | |
543 | (*tid_check)++; | |
544 | } | |
545 | } | |
546 | if (*pid_check == 0) { | |
547 | if (strncmp(bt_ctf_get_decl_field_name(field_list[j]), "pid", 3) == 0) | |
548 | (*pid_check)++; | |
549 | } | |
550 | if (*ppid_check == 0) { | |
551 | if (strncmp(bt_ctf_get_decl_field_name(field_list[j]), "ppid", 4) == 0) | |
552 | (*ppid_check)++; | |
553 | } | |
554 | if (*procname_check == 0) { | |
555 | if (strncmp(bt_ctf_get_decl_field_name(field_list[j]), "procname", 8) == 0) | |
556 | (*procname_check)++; | |
557 | } | |
558 | } | |
559 | /* if all checks are OK, no need to continue the checks */ | |
560 | if (*tid_check == 1 && *pid_check == 1 && *ppid_check == 1 && | |
561 | *procname_check == 1) | |
562 | return 0; | |
563 | ||
564 | return -1; | |
565 | } | |
566 | ||
567 | /* | |
568 | * check_requirements: check if the required context informations are available | |
569 | * | |
570 | * If each mandatory context information is available for at least in one | |
571 | * event, return 0 otherwise return -1. | |
a54d0d2c JD |
572 | */ |
573 | int check_requirements(struct bt_context *ctx) | |
574 | { | |
575 | unsigned int i, evt_cnt, field_cnt; | |
576 | struct bt_ctf_event_decl *const * evt_list; | |
577 | const struct bt_ctf_field_decl *const * field_list; | |
578 | int tid_check = 0; | |
579 | int pid_check = 0; | |
580 | int procname_check = 0; | |
581 | int ppid_check = 0; | |
582 | int ret = 0; | |
583 | ||
584 | bt_ctf_get_event_decl_list(0, ctx, &evt_list, &evt_cnt); | |
585 | for (i = 0; i < evt_cnt; i++) { | |
586 | bt_ctf_get_decl_fields(evt_list[i], BT_STREAM_EVENT_CONTEXT, | |
587 | &field_list, &field_cnt); | |
588 | ret = check_field_requirements(field_list, field_cnt, | |
589 | &tid_check, &pid_check, &procname_check, | |
590 | &ppid_check); | |
591 | if (ret == 0) | |
592 | goto end; | |
593 | ||
594 | bt_ctf_get_decl_fields(evt_list[i], BT_EVENT_CONTEXT, | |
595 | &field_list, &field_cnt); | |
596 | ret = check_field_requirements(field_list, field_cnt, | |
597 | &tid_check, &pid_check, &procname_check, | |
598 | &ppid_check); | |
599 | if (ret == 0) | |
600 | goto end; | |
601 | ||
602 | bt_ctf_get_decl_fields(evt_list[i], BT_STREAM_PACKET_CONTEXT, | |
603 | &field_list, &field_cnt); | |
604 | ret = check_field_requirements(field_list, field_cnt, | |
605 | &tid_check, &pid_check, &procname_check, | |
606 | &ppid_check); | |
607 | if (ret == 0) | |
608 | goto end; | |
609 | } | |
610 | ||
611 | if (tid_check == 0) { | |
612 | ret = -1; | |
613 | fprintf(stderr, "[error] missing tid context information\n"); | |
614 | } | |
615 | if (pid_check == 0) { | |
616 | ret = -1; | |
617 | fprintf(stderr, "[error] missing pid context information\n"); | |
618 | } | |
619 | if (ppid_check == 0) { | |
620 | ret = -1; | |
621 | fprintf(stderr, "[error] missing ppid context information\n"); | |
622 | } | |
623 | if (procname_check == 0) { | |
624 | ret = -1; | |
625 | fprintf(stderr, "[error] missing procname context information\n"); | |
626 | } | |
627 | ||
628 | end: | |
629 | return ret; | |
630 | } | |
631 | ||
1fc22eb4 JD |
632 | int main(int argc, char **argv) |
633 | { | |
634 | int ret; | |
635 | struct bt_context *bt_ctx = NULL; | |
636 | ||
637 | ret = parse_options(argc, argv); | |
638 | if (ret < 0) { | |
639 | fprintf(stdout, "Error parsing options.\n\n"); | |
640 | usage(stdout); | |
641 | exit(EXIT_FAILURE); | |
642 | } else if (ret > 0) { | |
643 | exit(EXIT_SUCCESS); | |
644 | } | |
645 | ||
646 | init_lttngtop(); | |
647 | ||
648 | bt_ctx = bt_context_create(); | |
649 | ret = bt_context_add_traces_recursive(bt_ctx, opt_input_path, "ctf", NULL); | |
650 | if (ret < 0) { | |
a54d0d2c JD |
651 | fprintf(stderr, "[error] Opening the trace\n"); |
652 | goto end; | |
653 | } | |
654 | ||
655 | ret = check_requirements(bt_ctx); | |
656 | if (ret < 0) { | |
6ff9c173 | 657 | fprintf(stderr, "[error] some mandatory contexts were missing, exiting.\n"); |
1fc22eb4 JD |
658 | goto end; |
659 | } | |
660 | ||
661 | pthread_create(&display_thread, NULL, ncurses_display, (void *) NULL); | |
662 | pthread_create(&timer_thread, NULL, refresh_thread, (void *) NULL); | |
663 | ||
664 | iter_trace(bt_ctx); | |
665 | ||
666 | quit = 1; | |
667 | pthread_join(display_thread, NULL); | |
85db4618 | 668 | pthread_join(timer_thread, NULL); |
1fc22eb4 JD |
669 | |
670 | end: | |
85db4618 | 671 | bt_context_put(bt_ctx); |
1fc22eb4 JD |
672 | return 0; |
673 | } |