| 1 | /* This file is part of the Linux Trace Toolkit viewer |
| 2 | * Copyright (C) 2003-2004 Michel Dagenais |
| 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 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this program; if not, write to the Free Software |
| 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, |
| 16 | * MA 02110-1301, USA. |
| 17 | */ |
| 18 | |
| 19 | #ifdef HAVE_CONFIG_H |
| 20 | #include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | #include <lttv/traceset.h> |
| 24 | #include <lttv/iattribute.h> |
| 25 | #include <lttv/state.h> |
| 26 | #include <lttv/event.h> |
| 27 | #include <lttv/hook.h> |
| 28 | #include <stdio.h> |
| 29 | #include <babeltrace/babeltrace.h> |
| 30 | #include <babeltrace/context.h> |
| 31 | #include <babeltrace/ctf/iterator.h> |
| 32 | #include <babeltrace/ctf/events.h> |
| 33 | |
| 34 | /* To traverse a tree recursively */ |
| 35 | #include <fcntl.h> |
| 36 | /* For the use of realpath*/ |
| 37 | #include <limits.h> |
| 38 | #include <stdlib.h> |
| 39 | /* For strcpy*/ |
| 40 | #include <string.h> |
| 41 | #include <errno.h> |
| 42 | #include <dirent.h> |
| 43 | /* A trace is a sequence of events gathered in the same tracing session. The |
| 44 | events may be stored in several tracefiles in the same directory. |
| 45 | A trace set is defined when several traces are to be analyzed together, |
| 46 | possibly to study the interactions between events in the different traces. |
| 47 | */ |
| 48 | |
| 49 | |
| 50 | LttvTraceset *lttv_traceset_new(void) |
| 51 | { |
| 52 | LttvTraceset *ts; |
| 53 | struct bt_iter_pos begin_pos; |
| 54 | |
| 55 | ts = g_new(LttvTraceset, 1); |
| 56 | ts->filename = NULL; |
| 57 | ts->common_path = NULL; |
| 58 | ts->traces = g_ptr_array_new(); |
| 59 | ts->context = bt_context_create(); |
| 60 | ts->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 61 | |
| 62 | /*Initialize iterator to the beginning of the traces*/ |
| 63 | begin_pos.type = BT_SEEK_BEGIN; |
| 64 | ts->iter = bt_ctf_iter_create(ts->context, &begin_pos, NULL); |
| 65 | |
| 66 | ts->event_hooks = lttv_hooks_new(); |
| 67 | |
| 68 | ts->state_trace_handle_index = g_ptr_array_new(); |
| 69 | ts->has_precomputed_states = FALSE; |
| 70 | |
| 71 | ts->time_span.start_time = ltt_time_zero; |
| 72 | ts->time_span.end_time = ltt_time_zero; |
| 73 | lttv_traceset_get_time_span_real(ts); |
| 74 | return ts; |
| 75 | } |
| 76 | |
| 77 | char * lttv_traceset_name(LttvTraceset * s) |
| 78 | { |
| 79 | return s->filename; |
| 80 | } |
| 81 | |
| 82 | #ifdef BABEL_CLEANUP |
| 83 | LttvTrace *lttv_trace_new(LttTrace *t) |
| 84 | { |
| 85 | LttvTrace *new_trace; |
| 86 | |
| 87 | new_trace = g_new(LttvTrace, 1); |
| 88 | new_trace->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 89 | new_trace->id = t; |
| 90 | new_trace->ref_count = 0; |
| 91 | return new_trace; |
| 92 | } |
| 93 | #endif |
| 94 | /* |
| 95 | * get_absolute_pathname : Return the unique pathname in the system |
| 96 | * |
| 97 | * pathname is the relative path. |
| 98 | * |
| 99 | * abs_pathname is being set to the absolute path. |
| 100 | * |
| 101 | */ |
| 102 | void get_absolute_pathname(const gchar *pathname, gchar * abs_pathname) |
| 103 | { |
| 104 | abs_pathname[0] = '\0'; |
| 105 | |
| 106 | if (realpath(pathname, abs_pathname) != NULL) |
| 107 | return; |
| 108 | else |
| 109 | { |
| 110 | /* error, return the original path unmodified */ |
| 111 | strcpy(abs_pathname, pathname); |
| 112 | return; |
| 113 | } |
| 114 | return; |
| 115 | } |
| 116 | |
| 117 | |
| 118 | |
| 119 | /* |
| 120 | * lttv_trace_create : Create a trace from a path |
| 121 | * |
| 122 | * ts is the traceset in which will be contained the trace |
| 123 | * |
| 124 | * path is the path where to find a trace. It is not recursive. |
| 125 | * |
| 126 | * This function is static since a trace should always be contained in a |
| 127 | * traceset. |
| 128 | * |
| 129 | * return the created trace or NULL on failure |
| 130 | */ |
| 131 | static LttvTrace *lttv_trace_create(LttvTraceset *ts, const char *path) |
| 132 | { |
| 133 | int id = bt_context_add_trace(lttv_traceset_get_context(ts), |
| 134 | path, |
| 135 | "ctf", |
| 136 | NULL, |
| 137 | NULL, |
| 138 | NULL); |
| 139 | if (id < 0) { |
| 140 | return NULL; |
| 141 | } |
| 142 | // Create the trace and save the trace handle id returned by babeltrace |
| 143 | LttvTrace *new_trace; |
| 144 | |
| 145 | new_trace = g_new(LttvTrace, 1); |
| 146 | new_trace->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 147 | new_trace->id = id; |
| 148 | new_trace->ref_count = 0; |
| 149 | new_trace->short_name[0] = '\0'; |
| 150 | new_trace->traceset = ts; |
| 151 | new_trace->state = g_new(LttvTraceState,1); |
| 152 | lttv_trace_state_init(new_trace->state,new_trace); |
| 153 | |
| 154 | /* Add the state to the trace_handle to state index */ |
| 155 | g_ptr_array_set_size(ts->state_trace_handle_index,id+1); |
| 156 | g_ptr_array_index(ts->state_trace_handle_index,id) = new_trace->state; |
| 157 | |
| 158 | /* Find common path */ |
| 159 | if (ts->common_path == NULL) { |
| 160 | ts->common_path = strdup(path); |
| 161 | } else { |
| 162 | /* TODO ybrosseau 2013-05-24: consider put that in a function */ |
| 163 | int i,j; |
| 164 | for (i = 0; |
| 165 | ts->common_path != '\0'; |
| 166 | i++) { |
| 167 | if (path[i] != ts->common_path[i]) { |
| 168 | /* The common path has changed, redo the other traces */ |
| 169 | for(j = 0; j < ts->traces->len; j++) { |
| 170 | LttvTrace *t = g_ptr_array_index(ts->traces, j); |
| 171 | strncpy(t->short_name, t->full_path+i, TRACE_NAME_SIZE); |
| 172 | } |
| 173 | |
| 174 | break; |
| 175 | } |
| 176 | } |
| 177 | strncpy(new_trace->short_name, path+i, TRACE_NAME_SIZE); |
| 178 | } |
| 179 | new_trace->full_path = strdup(path); |
| 180 | |
| 181 | return new_trace; |
| 182 | } |
| 183 | |
| 184 | /* |
| 185 | * lttv_trace_create : Create and add a single trace to a traceset |
| 186 | * |
| 187 | * ts is the traceset in which will be contained the trace |
| 188 | * |
| 189 | * path is the path where to find a trace. It is not recursive. |
| 190 | * |
| 191 | * return a positive integer (>=0)on success or -1 on failure |
| 192 | */ |
| 193 | static int lttv_traceset_create_trace(LttvTraceset *ts, const char *path) |
| 194 | { |
| 195 | LttvTrace *trace = lttv_trace_create(ts, path); |
| 196 | if (trace == NULL) { |
| 197 | return -1; |
| 198 | } |
| 199 | lttv_traceset_add(ts, trace); |
| 200 | return 0; |
| 201 | } |
| 202 | |
| 203 | LttvTraceset *lttv_traceset_copy(LttvTraceset *s_orig) |
| 204 | { |
| 205 | guint i; |
| 206 | LttvTraceset *s; |
| 207 | LttvTrace * trace; |
| 208 | |
| 209 | s = g_new(LttvTraceset, 1); |
| 210 | s->filename = NULL; |
| 211 | s->common_path = strdup(s_orig->common_path); |
| 212 | s->traces = g_ptr_array_new(); |
| 213 | s->state_trace_handle_index = g_ptr_array_new(); |
| 214 | for(i=0;i<s_orig->traces->len;i++) |
| 215 | { |
| 216 | trace = g_ptr_array_index(s_orig->traces, i); |
| 217 | trace->ref_count++; |
| 218 | |
| 219 | /* WARNING: this is an alias, not a copy. */ |
| 220 | g_ptr_array_add(s->traces, trace); |
| 221 | |
| 222 | g_ptr_array_set_size(s->state_trace_handle_index,trace->id+1); |
| 223 | g_ptr_array_index(s->state_trace_handle_index,trace->id) = trace->state; |
| 224 | |
| 225 | } |
| 226 | s->context = s_orig->context; |
| 227 | bt_context_get(s->context); |
| 228 | s->a = LTTV_ATTRIBUTE(lttv_iattribute_deep_copy(LTTV_IATTRIBUTE(s_orig->a))); |
| 229 | return s; |
| 230 | } |
| 231 | |
| 232 | |
| 233 | LttvTraceset *lttv_traceset_load(const gchar *filename) |
| 234 | { |
| 235 | LttvTraceset *s = g_new(LttvTraceset,1); |
| 236 | FILE *tf; |
| 237 | |
| 238 | s->filename = g_strdup(filename); |
| 239 | tf = fopen(filename,"r"); |
| 240 | |
| 241 | g_critical("NOT IMPLEMENTED : load traceset data from a XML file"); |
| 242 | |
| 243 | fclose(tf); |
| 244 | return s; |
| 245 | } |
| 246 | |
| 247 | gint lttv_traceset_save(LttvTraceset *s) |
| 248 | { |
| 249 | FILE *tf; |
| 250 | |
| 251 | tf = fopen(s->filename, "w"); |
| 252 | |
| 253 | g_critical("NOT IMPLEMENTED : save traceset data in a XML file"); |
| 254 | |
| 255 | fclose(tf); |
| 256 | return 0; |
| 257 | } |
| 258 | |
| 259 | void lttv_traceset_destroy(LttvTraceset *s) |
| 260 | { |
| 261 | guint i; |
| 262 | |
| 263 | for(i=0;i<s->traces->len;i++) { |
| 264 | LttvTrace *trace = g_ptr_array_index(s->traces, i); |
| 265 | lttv_trace_unref(trace); |
| 266 | // todo mdenis 2012-03-27: uncomment when babeltrace gets fixed |
| 267 | //bt_context_remove_trace(lttv_traceset_get_context(s), trace->id); |
| 268 | if(lttv_trace_get_ref_number(trace) == 0) |
| 269 | lttv_trace_destroy(trace); |
| 270 | } |
| 271 | free(s->common_path); |
| 272 | g_ptr_array_free(s->traces, TRUE); |
| 273 | bt_context_put(s->context); |
| 274 | g_object_unref(s->a); |
| 275 | g_free(s); |
| 276 | } |
| 277 | |
| 278 | struct bt_context *lttv_traceset_get_context(LttvTraceset *s) |
| 279 | { |
| 280 | return s->context; |
| 281 | } |
| 282 | |
| 283 | LttvTraceset *lttv_trace_get_traceset(LttvTrace *trace) |
| 284 | { |
| 285 | return trace->traceset; |
| 286 | } |
| 287 | |
| 288 | LttvHooks *lttv_traceset_get_hooks(LttvTraceset *s) |
| 289 | { |
| 290 | return s->event_hooks; |
| 291 | } |
| 292 | |
| 293 | void lttv_trace_destroy(LttvTrace *t) |
| 294 | { |
| 295 | free(t->full_path); |
| 296 | g_object_unref(t->a); |
| 297 | g_free(t); |
| 298 | } |
| 299 | |
| 300 | void lttv_traceset_add(LttvTraceset *s, LttvTrace *t) |
| 301 | { |
| 302 | t->ref_count++; |
| 303 | g_ptr_array_add(s->traces, t); |
| 304 | } |
| 305 | |
| 306 | int lttv_traceset_get_trace_index_from_event(LttvEvent *event) |
| 307 | { |
| 308 | LttvTraceset *ts = event->state->trace->traceset; |
| 309 | |
| 310 | return lttv_traceset_get_trace_index_from_handle_id(ts, bt_ctf_event_get_handle_id(event->bt_event)); |
| 311 | } |
| 312 | |
| 313 | int lttv_traceset_get_trace_index_from_handle_id(LttvTraceset *ts, int handle_id) |
| 314 | { |
| 315 | int i; |
| 316 | |
| 317 | /* TODO ybrosseau 2013-05-22: use a map to speedup the lookup */ |
| 318 | |
| 319 | for(i = 0; i < ts->traces->len; i++) { |
| 320 | LttvTrace *t = g_ptr_array_index(ts->traces, i); |
| 321 | if (t && t->id == handle_id) { |
| 322 | return i; |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | /* Handle id not found */ |
| 327 | return -1; |
| 328 | |
| 329 | } |
| 330 | |
| 331 | int lttv_traceset_add_path(LttvTraceset *ts, char *trace_path) |
| 332 | { |
| 333 | int ret = -1; |
| 334 | DIR *curdir = NULL; |
| 335 | gboolean metaFileFound = FALSE; |
| 336 | |
| 337 | /* Open top level directory */ |
| 338 | curdir = opendir(trace_path); |
| 339 | if (curdir == NULL) { |
| 340 | g_warning("Cannot open directory %s (%s)", trace_path, strerror(errno)); |
| 341 | return ret; |
| 342 | } |
| 343 | |
| 344 | // Check if a metadata file exists in the current directory |
| 345 | int metafd = openat(dirfd(curdir), "metadata", O_RDONLY); |
| 346 | if (metafd < 0) { |
| 347 | |
| 348 | } else { |
| 349 | ret = close(metafd); |
| 350 | if (ret < 0) { |
| 351 | g_warning("Unable to close metadata " |
| 352 | "file descriptor : %s.", trace_path); |
| 353 | goto error; |
| 354 | } |
| 355 | |
| 356 | ret = lttv_traceset_create_trace(ts, trace_path); |
| 357 | if (ret < 0) { |
| 358 | g_warning("Opening trace \"%s\" " |
| 359 | "for reading.", trace_path); |
| 360 | goto error; |
| 361 | } |
| 362 | metaFileFound = TRUE; |
| 363 | } |
| 364 | |
| 365 | struct dirent curentry; |
| 366 | struct dirent *resultentry; |
| 367 | while ((ret = readdir_r(curdir, &curentry, &resultentry)) == 0) { |
| 368 | if (resultentry == NULL) { |
| 369 | /* No more entry*/ |
| 370 | break; |
| 371 | } |
| 372 | if (curentry.d_name[0] != '.') { |
| 373 | if (curentry.d_type == DT_DIR) { |
| 374 | |
| 375 | char curpath[PATH_MAX]; |
| 376 | snprintf(curpath, PATH_MAX, "%s/%s", trace_path, curentry.d_name); |
| 377 | ret = lttv_traceset_add_path(ts, curpath); |
| 378 | if (ret >= 0) { |
| 379 | metaFileFound = TRUE; |
| 380 | } |
| 381 | } |
| 382 | } |
| 383 | } |
| 384 | |
| 385 | if (ret != 0) { |
| 386 | g_warning("Invalid readdir"); |
| 387 | } |
| 388 | |
| 389 | error: |
| 390 | if(metaFileFound) |
| 391 | return ret; |
| 392 | else |
| 393 | return -1; |
| 394 | } |
| 395 | |
| 396 | unsigned lttv_traceset_number(LttvTraceset *s) |
| 397 | { |
| 398 | return s->traces->len; |
| 399 | } |
| 400 | |
| 401 | |
| 402 | LttvTrace *lttv_traceset_get(LttvTraceset *s, unsigned i) |
| 403 | { |
| 404 | g_assert(s->traces->len > i); |
| 405 | return ((LttvTrace *)s->traces->pdata[i]); |
| 406 | } |
| 407 | |
| 408 | |
| 409 | void lttv_traceset_remove(LttvTraceset *s, unsigned i) |
| 410 | { |
| 411 | LttvTrace * t; |
| 412 | g_assert(s->traces->len > i); |
| 413 | t = (LttvTrace *)s->traces->pdata[i]; |
| 414 | t->ref_count--; |
| 415 | bt_context_remove_trace(lttv_traceset_get_context(s), t->id); |
| 416 | g_ptr_array_remove_index(s->traces, i); |
| 417 | } |
| 418 | |
| 419 | |
| 420 | /* A set of attributes is attached to each trace set, trace and tracefile |
| 421 | to store user defined data as needed. */ |
| 422 | |
| 423 | LttvAttribute *lttv_traceset_attribute(LttvTraceset *s) |
| 424 | { |
| 425 | return s->a; |
| 426 | } |
| 427 | |
| 428 | |
| 429 | LttvAttribute *lttv_trace_attribute(LttvTrace *t) |
| 430 | { |
| 431 | return t->a; |
| 432 | } |
| 433 | |
| 434 | |
| 435 | gint lttv_trace_get_id(LttvTrace *t) |
| 436 | { |
| 437 | return t->id; |
| 438 | } |
| 439 | |
| 440 | guint lttv_trace_get_ref_number(LttvTrace * t) |
| 441 | { |
| 442 | // todo mdenis: adapt to babeltrace |
| 443 | return t->ref_count; |
| 444 | } |
| 445 | |
| 446 | guint lttv_trace_ref(LttvTrace * t) |
| 447 | { |
| 448 | t->ref_count++; |
| 449 | |
| 450 | return t->ref_count; |
| 451 | } |
| 452 | |
| 453 | guint lttv_trace_unref(LttvTrace * t) |
| 454 | { |
| 455 | if(likely(t->ref_count > 0)) |
| 456 | t->ref_count--; |
| 457 | |
| 458 | return t->ref_count; |
| 459 | } |
| 460 | |
| 461 | guint lttv_trace_get_num_cpu(LttvTrace *t) |
| 462 | { |
| 463 | #warning "TODO - Set the right number of CPU" |
| 464 | return 24; |
| 465 | } |
| 466 | |
| 467 | LttvTracesetPosition *lttv_traceset_create_current_position(const LttvTraceset *traceset) |
| 468 | { |
| 469 | LttvTracesetPosition *traceset_pos; |
| 470 | |
| 471 | traceset_pos = g_new(LttvTracesetPosition, 1); |
| 472 | |
| 473 | /* Check if the new passed */ |
| 474 | if(traceset_pos == NULL) { |
| 475 | return NULL; |
| 476 | } |
| 477 | |
| 478 | traceset_pos->iter = traceset->iter; |
| 479 | traceset_pos->bt_pos = bt_iter_get_pos(bt_ctf_get_iter(traceset->iter)); |
| 480 | traceset_pos->timestamp = G_MAXUINT64; |
| 481 | traceset_pos->cpu_id = INT_MAX; |
| 482 | |
| 483 | return traceset_pos; |
| 484 | } |
| 485 | |
| 486 | LttvTracesetPosition *lttv_traceset_create_time_position(LttvTraceset *traceset, |
| 487 | LttTime timestamp) |
| 488 | { |
| 489 | LttvTracesetPosition *traceset_pos; |
| 490 | |
| 491 | traceset_pos = g_new(LttvTracesetPosition, 1); |
| 492 | |
| 493 | /* Check if the new passed */ |
| 494 | if(traceset_pos == NULL) { |
| 495 | return NULL; |
| 496 | } |
| 497 | |
| 498 | traceset_pos->iter = traceset->iter; |
| 499 | traceset_pos->bt_pos = bt_iter_create_time_pos( |
| 500 | bt_ctf_get_iter(traceset_pos->iter), |
| 501 | ltt_time_to_uint64(timestamp)); |
| 502 | traceset_pos->timestamp = G_MAXUINT64; |
| 503 | traceset_pos->cpu_id = INT_MAX; |
| 504 | return traceset_pos; |
| 505 | } |
| 506 | |
| 507 | void lttv_traceset_destroy_position(LttvTracesetPosition *traceset_pos) |
| 508 | { |
| 509 | bt_iter_free_pos(traceset_pos->bt_pos); |
| 510 | g_free(traceset_pos); |
| 511 | } |
| 512 | |
| 513 | void lttv_traceset_seek_to_position(const LttvTracesetPosition *traceset_pos) |
| 514 | { |
| 515 | bt_iter_set_pos(bt_ctf_get_iter(traceset_pos->iter), traceset_pos->bt_pos); |
| 516 | } |
| 517 | |
| 518 | guint lttv_traceset_get_cpuid_from_event(LttvEvent *event) |
| 519 | { |
| 520 | unsigned long timestamp; |
| 521 | unsigned int cpu_id; |
| 522 | |
| 523 | struct bt_ctf_event *ctf_event = event->bt_event; |
| 524 | timestamp = bt_ctf_get_timestamp(ctf_event); |
| 525 | if (timestamp == -1ULL) { |
| 526 | return 0; |
| 527 | } |
| 528 | const struct bt_definition *scope = bt_ctf_get_top_level_scope(ctf_event, BT_STREAM_PACKET_CONTEXT); |
| 529 | if (bt_ctf_field_get_error()) { |
| 530 | return 0; |
| 531 | } |
| 532 | cpu_id = bt_ctf_get_uint64(bt_ctf_get_field(ctf_event, scope, "cpu_id")); |
| 533 | if (bt_ctf_field_get_error()) { |
| 534 | return 0; |
| 535 | } else { |
| 536 | return cpu_id; |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | guint64 lttv_traceset_get_timestamp_first_event(LttvTraceset *ts) |
| 541 | { |
| 542 | LttvTracesetPosition begin_position; |
| 543 | struct bt_iter_pos pos; |
| 544 | begin_position.bt_pos = &pos; |
| 545 | begin_position.timestamp = G_MAXUINT64; |
| 546 | begin_position.cpu_id = INT_MAX; |
| 547 | |
| 548 | /* Assign iterator to the beginning of the traces */ |
| 549 | begin_position.bt_pos->type = BT_SEEK_BEGIN; |
| 550 | begin_position.iter = ts->iter; |
| 551 | |
| 552 | return lttv_traceset_position_get_timestamp(&begin_position); |
| 553 | } |
| 554 | |
| 555 | guint64 lttv_traceset_get_timestamp_last_event(LttvTraceset *ts) |
| 556 | { |
| 557 | LttvTracesetPosition last_position; |
| 558 | struct bt_iter_pos pos; |
| 559 | last_position.bt_pos = &pos; |
| 560 | last_position.timestamp = G_MAXUINT64; |
| 561 | last_position.cpu_id = INT_MAX; |
| 562 | |
| 563 | /* Assign iterator to the last event of the traces */ |
| 564 | last_position.bt_pos->type = BT_SEEK_LAST; |
| 565 | last_position.iter = ts->iter; |
| 566 | |
| 567 | return lttv_traceset_position_get_timestamp(&last_position); |
| 568 | } |
| 569 | |
| 570 | /* |
| 571 | * lttv_traceset_get_timestamp_begin : returns the minimum timestamp of |
| 572 | * all the traces in the traceset. |
| 573 | * |
| 574 | */ |
| 575 | guint64 lttv_traceset_get_timestamp_begin(LttvTraceset *traceset) |
| 576 | { |
| 577 | struct bt_context *bt_ctx; |
| 578 | bt_ctx = lttv_traceset_get_context(traceset); |
| 579 | guint64 timestamp_min, timestamp_cur = 0; |
| 580 | int i; |
| 581 | int trace_count; |
| 582 | LttvTrace *currentTrace; |
| 583 | trace_count = traceset->traces->len; |
| 584 | if(trace_count == 0) |
| 585 | timestamp_min = 0; |
| 586 | else{ |
| 587 | timestamp_min = G_MAXUINT64; |
| 588 | for(i = 0; i < trace_count;i++) |
| 589 | { |
| 590 | currentTrace = g_ptr_array_index(traceset->traces,i); |
| 591 | timestamp_cur = bt_trace_handle_get_timestamp_begin(bt_ctx, |
| 592 | currentTrace->id, |
| 593 | BT_CLOCK_REAL); |
| 594 | if(timestamp_cur < timestamp_min) |
| 595 | timestamp_min = timestamp_cur; |
| 596 | } |
| 597 | } |
| 598 | return timestamp_min; |
| 599 | } |
| 600 | |
| 601 | /* |
| 602 | * lttv_traceset_get_timestamp_end: returns the maximum timestamp of |
| 603 | * all the traces in the traceset. |
| 604 | * |
| 605 | */ |
| 606 | guint64 lttv_traceset_get_timestamp_end(LttvTraceset *traceset) |
| 607 | { |
| 608 | struct bt_context *bt_ctx; |
| 609 | bt_ctx = lttv_traceset_get_context(traceset); |
| 610 | guint64 timestamp_max, timestamp_cur = 0; |
| 611 | int i; |
| 612 | int trace_count; |
| 613 | LttvTrace *currentTrace; |
| 614 | trace_count = traceset->traces->len; |
| 615 | |
| 616 | if(trace_count == 0){ |
| 617 | timestamp_max = 1; |
| 618 | } |
| 619 | else{ |
| 620 | timestamp_max = 0; |
| 621 | for(i =0; i < trace_count;i++) |
| 622 | { |
| 623 | currentTrace = g_ptr_array_index(traceset->traces,i); |
| 624 | timestamp_cur = bt_trace_handle_get_timestamp_end(bt_ctx, |
| 625 | currentTrace->id, |
| 626 | BT_CLOCK_REAL); |
| 627 | if(timestamp_cur > timestamp_max){ |
| 628 | timestamp_max = timestamp_cur; |
| 629 | } |
| 630 | } |
| 631 | } |
| 632 | return timestamp_max; |
| 633 | } |
| 634 | /* |
| 635 | * lttv_traceset_get_time_span_real : return a TimeInterval representing the |
| 636 | * minimum timestamp and the maximum timestamp of the traceset. |
| 637 | * |
| 638 | */ |
| 639 | TimeInterval lttv_traceset_get_time_span_real(LttvTraceset *ts) |
| 640 | { |
| 641 | |
| 642 | |
| 643 | if(ltt_time_compare(ts->time_span.start_time, |
| 644 | ltt_time_zero) == 0 && ts->traces->len > 0){ |
| 645 | ts->time_span.start_time = ltt_time_from_uint64( |
| 646 | lttv_traceset_get_timestamp_first_event(ts)); |
| 647 | ts->time_span.end_time = ltt_time_from_uint64( |
| 648 | lttv_traceset_get_timestamp_last_event(ts)); |
| 649 | } |
| 650 | return ts->time_span; |
| 651 | } |
| 652 | |
| 653 | /* |
| 654 | * lttv_traceset_get_time_span : return a TimeInterval representing the |
| 655 | * minimum timestamp and the maximum timestamp of the traceset. |
| 656 | * |
| 657 | */ |
| 658 | TimeInterval lttv_traceset_get_time_span(LttvTraceset *ts) |
| 659 | { |
| 660 | if(ltt_time_compare(ts->time_span.start_time, ltt_time_zero) == 0){ |
| 661 | ts->time_span.start_time =ltt_time_from_uint64( |
| 662 | lttv_traceset_get_timestamp_begin(ts)); |
| 663 | ts->time_span.end_time = ltt_time_from_uint64( |
| 664 | lttv_traceset_get_timestamp_end(ts)); |
| 665 | } |
| 666 | return ts->time_span; |
| 667 | } |
| 668 | |
| 669 | const char *lttv_traceset_get_name_from_event(LttvEvent *event) |
| 670 | { |
| 671 | return bt_ctf_event_name(event->bt_event); |
| 672 | } |
| 673 | |
| 674 | int set_values_position(const LttvTracesetPosition *pos) |
| 675 | { |
| 676 | LttvTracesetPosition previous_pos; |
| 677 | previous_pos.iter = pos->iter; |
| 678 | previous_pos.bt_pos = bt_iter_get_pos(bt_ctf_get_iter(pos->iter)); |
| 679 | /* Seek to the new desired position */ |
| 680 | lttv_traceset_seek_to_position(pos); |
| 681 | /*Read the event*/ |
| 682 | struct bt_ctf_event *event = bt_ctf_iter_read_event(pos->iter); |
| 683 | |
| 684 | if(event != NULL){ |
| 685 | ((LttvTracesetPosition *)pos)->timestamp = bt_ctf_get_timestamp(event); |
| 686 | |
| 687 | LttvEvent lttv_event; |
| 688 | lttv_event.bt_event = event; |
| 689 | ((LttvTracesetPosition *)pos)->cpu_id = lttv_traceset_get_cpuid_from_event(<tv_event); |
| 690 | } |
| 691 | else { |
| 692 | /* The event is null */ |
| 693 | return 0; |
| 694 | } |
| 695 | |
| 696 | /* Reassign the previously saved position */ |
| 697 | lttv_traceset_seek_to_position(&previous_pos); |
| 698 | /*We must desallocate because the function bt_iter_get_pos() does a g_new */ |
| 699 | bt_iter_free_pos(previous_pos.bt_pos); |
| 700 | if (pos->timestamp == G_MAXUINT64) { |
| 701 | return 0; |
| 702 | } |
| 703 | return 1; |
| 704 | } |
| 705 | |
| 706 | guint64 lttv_traceset_position_get_timestamp(const LttvTracesetPosition *pos) |
| 707 | { |
| 708 | if(pos->timestamp == G_MAXUINT64){ |
| 709 | if(set_values_position(pos) == 0){ |
| 710 | return 0; |
| 711 | } |
| 712 | } |
| 713 | |
| 714 | return pos->timestamp; |
| 715 | } |
| 716 | |
| 717 | int lttv_traceset_position_get_cpuid(const LttvTracesetPosition *pos){ |
| 718 | if(pos->cpu_id == INT_MAX ){ |
| 719 | if(set_values_position(pos) == 0){ |
| 720 | return 0; |
| 721 | } |
| 722 | } |
| 723 | return pos->cpu_id; |
| 724 | } |
| 725 | |
| 726 | LttTime lttv_traceset_position_get_time(const LttvTracesetPosition *pos) |
| 727 | { |
| 728 | return ltt_time_from_uint64(lttv_traceset_position_get_timestamp(pos)); |
| 729 | } |
| 730 | |
| 731 | |
| 732 | /* 0 if equals, other is different */ |
| 733 | int lttv_traceset_position_compare(const LttvTracesetPosition *pos1, const LttvTracesetPosition *pos2) |
| 734 | { |
| 735 | #warning " TODO :Rename for lttv_traceset_position_equals && Must return COMPARAISON OF THE 2 POSITION && verify if it is the best way to compare position" |
| 736 | if(pos1 == NULL || pos2 == NULL){ |
| 737 | return -1; |
| 738 | } |
| 739 | |
| 740 | int res = -1; |
| 741 | #ifdef HAVE_BT_ITER_EQUALS_POS |
| 742 | if(pos1->timestamp == G_MAXUINT64 || pos2->timestamp == G_MAXUINT64) { |
| 743 | res = bt_iter_equals_pos(pos1->bt_pos, pos2->bt_pos); |
| 744 | } |
| 745 | #endif |
| 746 | if (res < 0) { |
| 747 | |
| 748 | guint64 timeStampPos1,timeStampPos2; |
| 749 | guint cpuId1, cpuId2; |
| 750 | |
| 751 | timeStampPos1 = lttv_traceset_position_get_timestamp(pos1); |
| 752 | timeStampPos2 = lttv_traceset_position_get_timestamp(pos2); |
| 753 | |
| 754 | if (timeStampPos1 == timeStampPos2) { |
| 755 | |
| 756 | cpuId1 = lttv_traceset_position_get_cpuid(pos1); |
| 757 | cpuId2 = lttv_traceset_position_get_cpuid(pos2); |
| 758 | |
| 759 | if(cpuId1 == cpuId2){ |
| 760 | return 0; |
| 761 | } |
| 762 | } |
| 763 | return 1; |
| 764 | } else { |
| 765 | |
| 766 | return !res; |
| 767 | } |
| 768 | } |
| 769 | |
| 770 | int lttv_traceset_position_time_compare(const LttvTracesetPosition *pos1, |
| 771 | const LttvTracesetPosition *pos2) |
| 772 | { |
| 773 | guint64 timeStampPos1,timeStampPos2; |
| 774 | |
| 775 | timeStampPos1 = lttv_traceset_position_get_timestamp(pos1); |
| 776 | timeStampPos2 = lttv_traceset_position_get_timestamp(pos2); |
| 777 | |
| 778 | return timeStampPos1 - timeStampPos2; |
| 779 | } |
| 780 | int lttv_traceset_position_compare_current(const LttvTraceset *ts, |
| 781 | const LttvTracesetPosition *pos) |
| 782 | { |
| 783 | int result = 0; |
| 784 | LttvTracesetPosition *curPos = lttv_traceset_create_current_position(ts); |
| 785 | |
| 786 | result = lttv_traceset_position_compare(curPos,pos); |
| 787 | |
| 788 | lttv_traceset_destroy_position(curPos); |
| 789 | |
| 790 | return result; |
| 791 | } |
| 792 | |
| 793 | LttTime lttv_traceset_get_current_time(const LttvTraceset *ts) |
| 794 | { |
| 795 | LttvTracesetPosition *curPos = lttv_traceset_create_current_position(ts); |
| 796 | guint64 currentTimestamp = lttv_traceset_position_get_timestamp(curPos); |
| 797 | lttv_traceset_destroy_position(curPos); |
| 798 | |
| 799 | return ltt_time_from_uint64(currentTimestamp); |
| 800 | } |