| 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., 59 Temple Place - Suite 330, Boston, |
| 16 | * MA 02111-1307, USA. |
| 17 | */ |
| 18 | |
| 19 | #ifdef HAVE_CONFIG_H |
| 20 | #include <config.h> |
| 21 | #endif |
| 22 | |
| 23 | #include <string.h> |
| 24 | #include <lttv/tracecontext.h> |
| 25 | #include <ltt/event.h> |
| 26 | #include <ltt/facility.h> |
| 27 | #include <ltt/trace.h> |
| 28 | #include <ltt/type.h> |
| 29 | #include <errno.h> |
| 30 | |
| 31 | |
| 32 | |
| 33 | |
| 34 | gint compare_tracefile(gconstpointer a, gconstpointer b) |
| 35 | { |
| 36 | gint comparison = 0; |
| 37 | |
| 38 | const LttvTracefileContext *trace_a = (const LttvTracefileContext *)a; |
| 39 | const LttvTracefileContext *trace_b = (const LttvTracefileContext *)b; |
| 40 | |
| 41 | if(likely(trace_a != trace_b)) { |
| 42 | comparison = ltt_time_compare(trace_a->timestamp, trace_b->timestamp); |
| 43 | if(unlikely(comparison == 0)) { |
| 44 | if(trace_a->index < trace_b->index) comparison = -1; |
| 45 | else if(trace_a->index > trace_b->index) comparison = 1; |
| 46 | else if(trace_a->t_context->index < trace_b->t_context->index) |
| 47 | comparison = -1; |
| 48 | else if(trace_a->t_context->index > trace_b->t_context->index) |
| 49 | comparison = 1; |
| 50 | } |
| 51 | } |
| 52 | return comparison; |
| 53 | } |
| 54 | |
| 55 | struct _LttvTracesetContextPosition { |
| 56 | GArray *ep; /* Array of LttEventPosition */ |
| 57 | GArray *tfc; /* Array of corresponding |
| 58 | TracefileContext* */ |
| 59 | LttTime timestamp; /* Current time at the saved position */ |
| 60 | }; |
| 61 | |
| 62 | void lttv_context_init(LttvTracesetContext *self, LttvTraceset *ts) |
| 63 | { |
| 64 | LTTV_TRACESET_CONTEXT_GET_CLASS(self)->init(self, ts); |
| 65 | } |
| 66 | |
| 67 | |
| 68 | void lttv_context_fini(LttvTracesetContext *self) |
| 69 | { |
| 70 | LTTV_TRACESET_CONTEXT_GET_CLASS(self)->fini(self); |
| 71 | } |
| 72 | |
| 73 | |
| 74 | LttvTracesetContext * |
| 75 | lttv_context_new_traceset_context(LttvTracesetContext *self) |
| 76 | { |
| 77 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_traceset_context(self); |
| 78 | } |
| 79 | |
| 80 | |
| 81 | |
| 82 | |
| 83 | LttvTraceContext * |
| 84 | lttv_context_new_trace_context(LttvTracesetContext *self) |
| 85 | { |
| 86 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_trace_context(self); |
| 87 | } |
| 88 | |
| 89 | |
| 90 | LttvTracefileContext * |
| 91 | lttv_context_new_tracefile_context(LttvTracesetContext *self) |
| 92 | { |
| 93 | return LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_tracefile_context(self); |
| 94 | } |
| 95 | |
| 96 | /**************************************************************************** |
| 97 | * lttv_traceset_context_compute_time_span |
| 98 | * |
| 99 | * Keep the time span is sync with on the fly addition and removal of traces |
| 100 | * in a trace set. It must be called each time a trace is added/removed from |
| 101 | * the traceset. It could be more efficient to call it only once a bunch |
| 102 | * of traces are loaded, but the calculation is not long, so it's not |
| 103 | * critical. |
| 104 | * |
| 105 | * Author : Xang Xiu Yang |
| 106 | ***************************************************************************/ |
| 107 | static void lttv_traceset_context_compute_time_span( |
| 108 | LttvTracesetContext *self, |
| 109 | TimeInterval *time_span) |
| 110 | { |
| 111 | LttvTraceset * traceset = self->ts; |
| 112 | int numTraces = lttv_traceset_number(traceset); |
| 113 | int i; |
| 114 | LttTime s, e; |
| 115 | LttvTraceContext *tc; |
| 116 | LttTrace * trace; |
| 117 | |
| 118 | time_span->start_time.tv_sec = 0; |
| 119 | time_span->start_time.tv_nsec = 0; |
| 120 | time_span->end_time.tv_sec = 0; |
| 121 | time_span->end_time.tv_nsec = 0; |
| 122 | |
| 123 | for(i=0; i<numTraces;i++){ |
| 124 | tc = self->traces[i]; |
| 125 | trace = tc->t; |
| 126 | |
| 127 | ltt_trace_time_span_get(trace, &s, &e); |
| 128 | |
| 129 | if(i==0){ |
| 130 | time_span->start_time = s; |
| 131 | time_span->end_time = e; |
| 132 | }else{ |
| 133 | if(s.tv_sec < time_span->start_time.tv_sec |
| 134 | || (s.tv_sec == time_span->start_time.tv_sec |
| 135 | && s.tv_nsec < time_span->start_time.tv_nsec)) |
| 136 | time_span->start_time = s; |
| 137 | if(e.tv_sec > time_span->end_time.tv_sec |
| 138 | || (e.tv_sec == time_span->end_time.tv_sec |
| 139 | && e.tv_nsec > time_span->end_time.tv_nsec)) |
| 140 | time_span->end_time = e; |
| 141 | } |
| 142 | } |
| 143 | } |
| 144 | |
| 145 | static void init_tracefile_context(LttTracefile *tracefile, |
| 146 | LttvTraceContext *tc) |
| 147 | { |
| 148 | LttvTracefileContext *tfc; |
| 149 | LttvTracesetContext *tsc = tc->ts_context; |
| 150 | |
| 151 | tfc = LTTV_TRACESET_CONTEXT_GET_CLASS(tsc)->new_tracefile_context(tsc); |
| 152 | |
| 153 | tfc->index = tc->tracefiles->len; |
| 154 | tc->tracefiles = g_array_append_val(tc->tracefiles, tfc); |
| 155 | |
| 156 | tfc->tf = tracefile; |
| 157 | |
| 158 | tfc->t_context = tc; |
| 159 | tfc->event = lttv_hooks_new(); |
| 160 | tfc->event_by_id = lttv_hooks_by_id_new(); |
| 161 | tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 162 | } |
| 163 | |
| 164 | |
| 165 | static void |
| 166 | init(LttvTracesetContext *self, LttvTraceset *ts) |
| 167 | { |
| 168 | guint i, j, nb_trace, nb_control, nb_per_cpu, nb_tracefile; |
| 169 | |
| 170 | LttvTraceContext *tc; |
| 171 | |
| 172 | GData **tracefiles_groups; |
| 173 | |
| 174 | struct compute_tracefile_group_args args; |
| 175 | |
| 176 | nb_trace = lttv_traceset_number(ts); |
| 177 | self->ts = ts; |
| 178 | self->traces = g_new(LttvTraceContext *, nb_trace); |
| 179 | self->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 180 | self->ts_a = lttv_traceset_attribute(ts); |
| 181 | for(i = 0 ; i < nb_trace ; i++) { |
| 182 | tc = LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_trace_context(self); |
| 183 | self->traces[i] = tc; |
| 184 | |
| 185 | tc->ts_context = self; |
| 186 | tc->index = i; |
| 187 | tc->vt = lttv_traceset_get(ts, i); |
| 188 | tc->t = lttv_trace(tc->vt); |
| 189 | tc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 190 | tc->t_a = lttv_trace_attribute(tc->vt); |
| 191 | tc->tracefiles = g_array_sized_new(FALSE, TRUE, |
| 192 | sizeof(LttvTracefileContext*), 10); |
| 193 | |
| 194 | tracefiles_groups = ltt_trace_get_tracefiles_groups(tc->t); |
| 195 | |
| 196 | args.func = (ForEachTraceFileFunc)init_tracefile_context; |
| 197 | args.func_args = tc; |
| 198 | |
| 199 | g_datalist_foreach(tracefiles_groups, |
| 200 | (GDataForeachFunc)compute_tracefile_group, |
| 201 | &args); |
| 202 | |
| 203 | #if 0 |
| 204 | nb_control = ltt_trace_control_tracefile_number(tc->t); |
| 205 | nb_per_cpu = ltt_trace_per_cpu_tracefile_number(tc->t); |
| 206 | nb_tracefile = nb_control + nb_per_cpu; |
| 207 | tc->tracefiles = g_new(LttvTracefileContext *, nb_tracefile); |
| 208 | |
| 209 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 210 | tfc = LTTV_TRACESET_CONTEXT_GET_CLASS(self)->new_tracefile_context(self); |
| 211 | tc->tracefiles[j] = tfc; |
| 212 | tfc->index = j; |
| 213 | |
| 214 | if(j < nb_control) { |
| 215 | tfc->control = TRUE; |
| 216 | tfc->tf = ltt_trace_control_tracefile_get(tc->t, j); |
| 217 | } |
| 218 | else { |
| 219 | tfc->control = FALSE; |
| 220 | tfc->tf = ltt_trace_per_cpu_tracefile_get(tc->t, j - nb_control); |
| 221 | } |
| 222 | |
| 223 | tfc->t_context = tc; |
| 224 | tfc->e = ltt_event_new(); |
| 225 | tfc->event = lttv_hooks_new(); |
| 226 | tfc->event_by_id = lttv_hooks_by_id_new(); |
| 227 | tfc->a = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL); |
| 228 | } |
| 229 | #endif //0 |
| 230 | |
| 231 | } |
| 232 | self->pqueue = g_tree_new(compare_tracefile); |
| 233 | lttv_process_traceset_seek_time(self, ltt_time_zero); |
| 234 | lttv_traceset_context_compute_time_span(self, &self->time_span); |
| 235 | |
| 236 | } |
| 237 | |
| 238 | |
| 239 | void fini(LttvTracesetContext *self) |
| 240 | { |
| 241 | guint i, j, nb_trace, nb_tracefile; |
| 242 | |
| 243 | LttvTraceContext *tc; |
| 244 | |
| 245 | LttvTracefileContext *tfc; |
| 246 | |
| 247 | LttvTraceset *ts = self->ts; |
| 248 | |
| 249 | //FIXME : segfault |
| 250 | |
| 251 | g_tree_destroy(self->pqueue); |
| 252 | g_object_unref(self->a); |
| 253 | |
| 254 | nb_trace = lttv_traceset_number(ts); |
| 255 | |
| 256 | for(i = 0 ; i < nb_trace ; i++) { |
| 257 | tc = self->traces[i]; |
| 258 | |
| 259 | g_object_unref(tc->a); |
| 260 | |
| 261 | nb_tracefile = tc->tracefiles->len; |
| 262 | |
| 263 | for(j = 0 ; j < nb_tracefile ; j++) { |
| 264 | tfc = g_array_index(tc->tracefiles, LttvTracefileContext*, j); |
| 265 | lttv_hooks_destroy(tfc->event); |
| 266 | lttv_hooks_by_id_destroy(tfc->event_by_id); |
| 267 | g_object_unref(tfc->a); |
| 268 | g_object_unref(tfc); |
| 269 | } |
| 270 | g_array_free(tc->tracefiles, TRUE); |
| 271 | g_object_unref(tc); |
| 272 | } |
| 273 | g_free(self->traces); |
| 274 | } |
| 275 | |
| 276 | |
| 277 | void lttv_traceset_context_add_hooks(LttvTracesetContext *self, |
| 278 | LttvHooks *before_traceset, |
| 279 | LttvHooks *before_trace, |
| 280 | LttvHooks *before_tracefile, |
| 281 | LttvHooks *event, |
| 282 | LttvHooksById *event_by_id) |
| 283 | { |
| 284 | LttvTraceset *ts = self->ts; |
| 285 | |
| 286 | guint i, nb_trace; |
| 287 | |
| 288 | LttvTraceContext *tc; |
| 289 | |
| 290 | lttv_hooks_call(before_traceset, self); |
| 291 | |
| 292 | nb_trace = lttv_traceset_number(ts); |
| 293 | |
| 294 | for(i = 0 ; i < nb_trace ; i++) { |
| 295 | tc = self->traces[i]; |
| 296 | lttv_trace_context_add_hooks(tc, |
| 297 | before_trace, |
| 298 | before_tracefile, |
| 299 | event, |
| 300 | event_by_id); |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | |
| 305 | void lttv_traceset_context_remove_hooks(LttvTracesetContext *self, |
| 306 | LttvHooks *after_traceset, |
| 307 | LttvHooks *after_trace, |
| 308 | LttvHooks *after_tracefile, |
| 309 | LttvHooks *event, |
| 310 | LttvHooksById *event_by_id) |
| 311 | { |
| 312 | |
| 313 | LttvTraceset *ts = self->ts; |
| 314 | |
| 315 | guint i, nb_trace; |
| 316 | |
| 317 | LttvTraceContext *tc; |
| 318 | |
| 319 | nb_trace = lttv_traceset_number(ts); |
| 320 | |
| 321 | for(i = 0 ; i < nb_trace ; i++) { |
| 322 | tc = self->traces[i]; |
| 323 | lttv_trace_context_remove_hooks(tc, |
| 324 | after_trace, |
| 325 | after_tracefile, |
| 326 | event, |
| 327 | event_by_id); |
| 328 | } |
| 329 | |
| 330 | lttv_hooks_call(after_traceset, self); |
| 331 | |
| 332 | |
| 333 | } |
| 334 | |
| 335 | void lttv_trace_context_add_hooks(LttvTraceContext *self, |
| 336 | LttvHooks *before_trace, |
| 337 | LttvHooks *before_tracefile, |
| 338 | LttvHooks *event, |
| 339 | LttvHooksById *event_by_id) |
| 340 | { |
| 341 | guint i, nb_tracefile; |
| 342 | |
| 343 | LttvTracefileContext *tfc; |
| 344 | |
| 345 | lttv_hooks_call(before_trace, self); |
| 346 | |
| 347 | nb_tracefile = self->tracefiles->len; |
| 348 | |
| 349 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 350 | tfc = g_array_index(self->tracefiles, LttvTracefileContext*, i); |
| 351 | lttv_tracefile_context_add_hooks(tfc, |
| 352 | before_tracefile, |
| 353 | event, |
| 354 | event_by_id); |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | |
| 359 | |
| 360 | void lttv_trace_context_remove_hooks(LttvTraceContext *self, |
| 361 | LttvHooks *after_trace, |
| 362 | LttvHooks *after_tracefile, |
| 363 | LttvHooks *event, |
| 364 | LttvHooksById *event_by_id) |
| 365 | { |
| 366 | guint i, nb_tracefile; |
| 367 | |
| 368 | LttvTracefileContext *tfc; |
| 369 | |
| 370 | nb_tracefile = self->tracefiles->len; |
| 371 | |
| 372 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 373 | tfc = g_array_index(self->tracefiles, LttvTracefileContext*, i); |
| 374 | lttv_tracefile_context_remove_hooks(tfc, |
| 375 | after_tracefile, |
| 376 | event, |
| 377 | event_by_id); |
| 378 | } |
| 379 | |
| 380 | lttv_hooks_call(after_trace, self); |
| 381 | } |
| 382 | |
| 383 | void lttv_tracefile_context_add_hooks(LttvTracefileContext *self, |
| 384 | LttvHooks *before_tracefile, |
| 385 | LttvHooks *event, |
| 386 | LttvHooksById *event_by_id) |
| 387 | { |
| 388 | guint i; |
| 389 | |
| 390 | LttvHooks *hook; |
| 391 | |
| 392 | lttv_hooks_call(before_tracefile, self); |
| 393 | lttv_hooks_add_list(self->event, event); |
| 394 | if(event_by_id != NULL) |
| 395 | for(i = 0; i < lttv_hooks_by_id_max_id(event_by_id); i++) { |
| 396 | hook = lttv_hooks_by_id_find(self->event_by_id, i); |
| 397 | lttv_hooks_add_list(hook, lttv_hooks_by_id_get(event_by_id, i)); |
| 398 | } |
| 399 | |
| 400 | } |
| 401 | |
| 402 | void lttv_tracefile_context_remove_hooks(LttvTracefileContext *self, |
| 403 | LttvHooks *after_tracefile, |
| 404 | LttvHooks *event, |
| 405 | LttvHooksById *event_by_id) |
| 406 | { |
| 407 | guint i; |
| 408 | |
| 409 | LttvHooks *hook; |
| 410 | |
| 411 | |
| 412 | lttv_hooks_remove_list(self->event, event); |
| 413 | if(event_by_id != NULL) |
| 414 | for(i = 0; i < lttv_hooks_by_id_max_id(event_by_id); i++) { |
| 415 | hook = lttv_hooks_by_id_get(self->event_by_id, i); |
| 416 | if(hook != NULL) |
| 417 | lttv_hooks_remove_list(hook, lttv_hooks_by_id_get(event_by_id, i)); |
| 418 | } |
| 419 | |
| 420 | lttv_hooks_call(after_tracefile, self); |
| 421 | } |
| 422 | |
| 423 | |
| 424 | |
| 425 | void lttv_tracefile_context_add_hooks_by_id(LttvTracefileContext *tfc, |
| 426 | unsigned i, |
| 427 | LttvHooks *event_by_id) |
| 428 | { |
| 429 | LttvHooks * h; |
| 430 | h = lttv_hooks_by_id_find(tfc->event_by_id, i); |
| 431 | lttv_hooks_add_list(h, event_by_id); |
| 432 | } |
| 433 | |
| 434 | void lttv_tracefile_context_remove_hooks_by_id(LttvTracefileContext *tfc, |
| 435 | unsigned i) |
| 436 | { |
| 437 | lttv_hooks_by_id_remove(tfc->event_by_id, i); |
| 438 | } |
| 439 | |
| 440 | static LttvTracesetContext * |
| 441 | new_traceset_context(LttvTracesetContext *self) |
| 442 | { |
| 443 | return g_object_new(LTTV_TRACESET_CONTEXT_TYPE, NULL); |
| 444 | } |
| 445 | |
| 446 | |
| 447 | static LttvTraceContext * |
| 448 | new_trace_context(LttvTracesetContext *self) |
| 449 | { |
| 450 | return g_object_new(LTTV_TRACE_CONTEXT_TYPE, NULL); |
| 451 | } |
| 452 | |
| 453 | |
| 454 | static LttvTracefileContext * |
| 455 | new_tracefile_context(LttvTracesetContext *self) |
| 456 | { |
| 457 | return g_object_new(LTTV_TRACEFILE_CONTEXT_TYPE, NULL); |
| 458 | } |
| 459 | |
| 460 | |
| 461 | static void |
| 462 | traceset_context_instance_init (GTypeInstance *instance, gpointer g_class) |
| 463 | { |
| 464 | /* Be careful of anything which would not work well with shallow copies */ |
| 465 | } |
| 466 | |
| 467 | |
| 468 | static void |
| 469 | traceset_context_finalize (LttvTracesetContext *self) |
| 470 | { |
| 471 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACESET_CONTEXT_TYPE))) |
| 472 | ->finalize(G_OBJECT(self)); |
| 473 | } |
| 474 | |
| 475 | |
| 476 | static void |
| 477 | traceset_context_class_init (LttvTracesetContextClass *klass) |
| 478 | { |
| 479 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 480 | |
| 481 | gobject_class->finalize = (void (*)(GObject *self))traceset_context_finalize; |
| 482 | klass->init = init; |
| 483 | klass->fini = fini; |
| 484 | klass->new_traceset_context = new_traceset_context; |
| 485 | klass->new_trace_context = new_trace_context; |
| 486 | klass->new_tracefile_context = new_tracefile_context; |
| 487 | } |
| 488 | |
| 489 | |
| 490 | GType |
| 491 | lttv_traceset_context_get_type(void) |
| 492 | { |
| 493 | static GType type = 0; |
| 494 | if (type == 0) { |
| 495 | static const GTypeInfo info = { |
| 496 | sizeof (LttvTracesetContextClass), |
| 497 | NULL, /* base_init */ |
| 498 | NULL, /* base_finalize */ |
| 499 | (GClassInitFunc) traceset_context_class_init, /* class_init */ |
| 500 | NULL, /* class_finalize */ |
| 501 | NULL, /* class_data */ |
| 502 | sizeof (LttvTracesetContext), |
| 503 | 0, /* n_preallocs */ |
| 504 | (GInstanceInitFunc) traceset_context_instance_init, /* instance_init */ |
| 505 | NULL /* Value handling */ |
| 506 | }; |
| 507 | |
| 508 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTracesetContextType", |
| 509 | &info, 0); |
| 510 | } |
| 511 | return type; |
| 512 | } |
| 513 | |
| 514 | |
| 515 | static void |
| 516 | trace_context_instance_init (GTypeInstance *instance, gpointer g_class) |
| 517 | { |
| 518 | /* Be careful of anything which would not work well with shallow copies */ |
| 519 | } |
| 520 | |
| 521 | |
| 522 | static void |
| 523 | trace_context_finalize (LttvTraceContext *self) |
| 524 | { |
| 525 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACE_CONTEXT_TYPE)))-> |
| 526 | finalize(G_OBJECT(self)); |
| 527 | } |
| 528 | |
| 529 | |
| 530 | static void |
| 531 | trace_context_class_init (LttvTraceContextClass *klass) |
| 532 | { |
| 533 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 534 | |
| 535 | gobject_class->finalize = (void (*)(GObject *self)) trace_context_finalize; |
| 536 | } |
| 537 | |
| 538 | |
| 539 | GType |
| 540 | lttv_trace_context_get_type(void) |
| 541 | { |
| 542 | static GType type = 0; |
| 543 | if (type == 0) { |
| 544 | static const GTypeInfo info = { |
| 545 | sizeof (LttvTraceContextClass), |
| 546 | NULL, /* base_init */ |
| 547 | NULL, /* base_finalize */ |
| 548 | (GClassInitFunc) trace_context_class_init, /* class_init */ |
| 549 | NULL, /* class_finalize */ |
| 550 | NULL, /* class_data */ |
| 551 | sizeof (LttvTraceContext), |
| 552 | 0, /* n_preallocs */ |
| 553 | (GInstanceInitFunc) trace_context_instance_init, /* instance_init */ |
| 554 | NULL /* Value handling */ |
| 555 | }; |
| 556 | |
| 557 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTraceContextType", |
| 558 | &info, 0); |
| 559 | } |
| 560 | return type; |
| 561 | } |
| 562 | |
| 563 | |
| 564 | static void |
| 565 | tracefile_context_instance_init (GTypeInstance *instance, gpointer g_class) |
| 566 | { |
| 567 | /* Be careful of anything which would not work well with shallow copies */ |
| 568 | } |
| 569 | |
| 570 | |
| 571 | static void |
| 572 | tracefile_context_finalize (LttvTracefileContext *self) |
| 573 | { |
| 574 | G_OBJECT_CLASS(g_type_class_peek(g_type_parent(LTTV_TRACEFILE_CONTEXT_TYPE))) |
| 575 | ->finalize(G_OBJECT(self)); |
| 576 | } |
| 577 | |
| 578 | |
| 579 | static void |
| 580 | tracefile_context_class_init (LttvTracefileContextClass *klass) |
| 581 | { |
| 582 | GObjectClass *gobject_class = G_OBJECT_CLASS(klass); |
| 583 | |
| 584 | gobject_class->finalize = (void (*)(GObject *self))tracefile_context_finalize; |
| 585 | } |
| 586 | |
| 587 | |
| 588 | GType |
| 589 | lttv_tracefile_context_get_type(void) |
| 590 | { |
| 591 | static GType type = 0; |
| 592 | if (type == 0) { |
| 593 | static const GTypeInfo info = { |
| 594 | sizeof (LttvTracefileContextClass), |
| 595 | NULL, /* base_init */ |
| 596 | NULL, /* base_finalize */ |
| 597 | (GClassInitFunc) tracefile_context_class_init, /* class_init */ |
| 598 | NULL, /* class_finalize */ |
| 599 | NULL, /* class_data */ |
| 600 | sizeof (LttvTracefileContext), |
| 601 | 0, /* n_preallocs */ |
| 602 | (GInstanceInitFunc) tracefile_context_instance_init, /* instance_init */ |
| 603 | NULL /* Value handling */ |
| 604 | }; |
| 605 | |
| 606 | type = g_type_register_static (G_TYPE_OBJECT, "LttvTracefileContextType", |
| 607 | &info, 0); |
| 608 | } |
| 609 | return type; |
| 610 | } |
| 611 | |
| 612 | |
| 613 | |
| 614 | static gboolean get_first(gpointer key, gpointer value, gpointer user_data) { |
| 615 | *((LttvTracefileContext **)user_data) = (LttvTracefileContext *)value; |
| 616 | return TRUE; |
| 617 | } |
| 618 | |
| 619 | |
| 620 | void lttv_process_traceset_begin(LttvTracesetContext *self, |
| 621 | LttvHooks *before_traceset, |
| 622 | LttvHooks *before_trace, |
| 623 | LttvHooks *before_tracefile, |
| 624 | LttvHooks *event, |
| 625 | LttvHooksById *event_by_id) |
| 626 | { |
| 627 | |
| 628 | /* simply add hooks in context. _before hooks are called by add_hooks. */ |
| 629 | /* It calls all before_traceset, before_trace, and before_tracefile hooks. */ |
| 630 | lttv_traceset_context_add_hooks(self, |
| 631 | before_traceset, |
| 632 | before_trace, |
| 633 | before_tracefile, |
| 634 | event, |
| 635 | event_by_id); |
| 636 | |
| 637 | } |
| 638 | |
| 639 | /* Note : a _middle must be preceded from a _seek or another middle */ |
| 640 | guint lttv_process_traceset_middle(LttvTracesetContext *self, |
| 641 | LttTime end, |
| 642 | guint nb_events, |
| 643 | const LttvTracesetContextPosition *end_position) |
| 644 | { |
| 645 | GTree *pqueue = self->pqueue; |
| 646 | |
| 647 | guint id; |
| 648 | |
| 649 | LttvTracefileContext *tfc; |
| 650 | |
| 651 | LttEvent *e; |
| 652 | |
| 653 | unsigned count = 0; |
| 654 | |
| 655 | gboolean last_ret = FALSE; /* return value of the last hook list called */ |
| 656 | |
| 657 | /* Get the next event from the pqueue, call its hooks, |
| 658 | reinsert in the pqueue the following event from the same tracefile |
| 659 | unless the tracefile is finished or the event is later than the |
| 660 | end time. */ |
| 661 | |
| 662 | while(TRUE) { |
| 663 | tfc = NULL; |
| 664 | g_tree_foreach(pqueue, get_first, &tfc); |
| 665 | /* End of traceset : tfc is NULL */ |
| 666 | if(unlikely(tfc == NULL)) |
| 667 | { |
| 668 | return count; |
| 669 | } |
| 670 | |
| 671 | /* Have we reached : |
| 672 | * - the maximum number of events specified? |
| 673 | * - the end position ? |
| 674 | * - the end time ? |
| 675 | * then the read is finished. We leave the queue in the same state and |
| 676 | * break the loop. |
| 677 | */ |
| 678 | |
| 679 | if(unlikely(last_ret == TRUE || |
| 680 | count >= nb_events || |
| 681 | (end_position!=NULL&<tv_traceset_context_ctx_pos_compare(self, |
| 682 | end_position) == 0)|| |
| 683 | ltt_time_compare(end, tfc->timestamp) <= 0)) |
| 684 | { |
| 685 | return count; |
| 686 | } |
| 687 | |
| 688 | /* Get the tracefile with an event for the smallest time found. If two |
| 689 | or more tracefiles have events for the same time, hope that lookup |
| 690 | and remove are consistent. */ |
| 691 | |
| 692 | g_tree_remove(pqueue, tfc); |
| 693 | count++; |
| 694 | |
| 695 | e = ltt_tracefile_get_event(tfc->tf); |
| 696 | id = ltt_event_eventtype_id(e); |
| 697 | last_ret = lttv_hooks_call_merge(tfc->event, tfc, |
| 698 | lttv_hooks_by_id_get(tfc->event_by_id, id), tfc); |
| 699 | |
| 700 | if(likely(!ltt_tracefile_read(tfc->tf))) { |
| 701 | tfc->timestamp = ltt_event_time(e); |
| 702 | g_tree_insert(pqueue, tfc, tfc); |
| 703 | } |
| 704 | } |
| 705 | } |
| 706 | |
| 707 | |
| 708 | void lttv_process_traceset_end(LttvTracesetContext *self, |
| 709 | LttvHooks *after_traceset, |
| 710 | LttvHooks *after_trace, |
| 711 | LttvHooks *after_tracefile, |
| 712 | LttvHooks *event, |
| 713 | LttvHooksById *event_by_id) |
| 714 | { |
| 715 | /* Remove hooks from context. _after hooks are called by remove_hooks. */ |
| 716 | /* It calls all after_traceset, after_trace, and after_tracefile hooks. */ |
| 717 | lttv_traceset_context_remove_hooks(self, |
| 718 | after_traceset, |
| 719 | after_trace, |
| 720 | after_tracefile, |
| 721 | event, |
| 722 | event_by_id); |
| 723 | } |
| 724 | |
| 725 | /* Subtile modification : |
| 726 | * if tracefile has no event at or after the time requested, it is not put in |
| 727 | * the queue, as the next read would fail. */ |
| 728 | void lttv_process_trace_seek_time(LttvTraceContext *self, LttTime start) |
| 729 | { |
| 730 | guint i, nb_tracefile; |
| 731 | |
| 732 | gint ret; |
| 733 | |
| 734 | LttvTracefileContext *tfc; |
| 735 | |
| 736 | GTree *pqueue = self->ts_context->pqueue; |
| 737 | |
| 738 | nb_tracefile = self->tracefiles->len; |
| 739 | |
| 740 | for(i = 0 ; i < nb_tracefile ; i++) { |
| 741 | tfc = g_array_index(self->tracefiles, LttvTracefileContext*, i); |
| 742 | ret = ltt_tracefile_seek_time(tfc->tf, start); |
| 743 | if(ret == EPERM) g_error("error in lttv_process_trace_seek_time seek"); |
| 744 | g_tree_remove(pqueue, tfc); |
| 745 | |
| 746 | if(ret == 0) { /* not ERANGE especially */ |
| 747 | tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf)); |
| 748 | g_tree_insert(pqueue, tfc, tfc); |
| 749 | } |
| 750 | } |
| 751 | } |
| 752 | |
| 753 | |
| 754 | void lttv_process_traceset_seek_time(LttvTracesetContext *self, LttTime start) |
| 755 | { |
| 756 | guint i, nb_trace; |
| 757 | |
| 758 | LttvTraceContext *tc; |
| 759 | |
| 760 | nb_trace = lttv_traceset_number(self->ts); |
| 761 | for(i = 0 ; i < nb_trace ; i++) { |
| 762 | tc = self->traces[i]; |
| 763 | lttv_process_trace_seek_time(tc, start); |
| 764 | } |
| 765 | } |
| 766 | |
| 767 | |
| 768 | gboolean lttv_process_traceset_seek_position(LttvTracesetContext *self, |
| 769 | const LttvTracesetContextPosition *pos) |
| 770 | { |
| 771 | guint i; |
| 772 | LttvTraceContext *tc; |
| 773 | LttvTracefileContext *tfc; |
| 774 | |
| 775 | g_tree_destroy(self->pqueue); |
| 776 | self->pqueue = g_tree_new(compare_tracefile); |
| 777 | |
| 778 | for(i=0;i<pos->ep->len; i++) { |
| 779 | LttEventPosition *ep = g_array_index(pos->ep, LttEventPosition*, i); |
| 780 | LttvTracefileContext *tfc = |
| 781 | g_array_index(pos->tfc, LttvTracefileContext*, i); |
| 782 | g_assert(ltt_tracefile_seek_position(tfc->tf, ep) == 0); |
| 783 | tfc->timestamp = ltt_event_time(ltt_tracefile_get_event(tfc->tf)); |
| 784 | g_tree_insert(self->pqueue, tfc, tfc); |
| 785 | } |
| 786 | return TRUE; |
| 787 | } |
| 788 | |
| 789 | |
| 790 | |
| 791 | static LttField * |
| 792 | find_field(LttEventType *et, const GQuark field) |
| 793 | { |
| 794 | LttType *t; |
| 795 | |
| 796 | LttField *f; |
| 797 | |
| 798 | guint i, nb; |
| 799 | |
| 800 | GQuark name; |
| 801 | |
| 802 | /* Field is unset */ |
| 803 | if(field == 0) return NULL; |
| 804 | |
| 805 | f = ltt_eventtype_field(et); |
| 806 | t = ltt_eventtype_type(et); |
| 807 | g_assert(ltt_type_class(t) == LTT_STRUCT); |
| 808 | nb = ltt_type_member_number(t); |
| 809 | for(i = 0 ; i < nb ; i++) { |
| 810 | ltt_type_member_type(t, i, &name); |
| 811 | if(name == field) break; |
| 812 | } |
| 813 | g_assert(i < nb); |
| 814 | return ltt_field_member(f, i); |
| 815 | } |
| 816 | |
| 817 | LttvTraceHookByFacility *lttv_trace_hook_get_fac(LttvTraceHook *th, |
| 818 | guint facility_id) |
| 819 | { |
| 820 | return &g_array_index(th->fac_index, LttvTraceHookByFacility, facility_id); |
| 821 | } |
| 822 | |
| 823 | /* Get the first facility corresponding to the name. As the types must be |
| 824 | * compatible, it is relevant to use the field name and sizes of the first |
| 825 | * facility to create data structures and assume the data will be compatible |
| 826 | * thorough the trace */ |
| 827 | LttvTraceHookByFacility *lttv_trace_hook_get_first(LttvTraceHook *th) |
| 828 | { |
| 829 | g_assert(th->fac_list->len > 0); |
| 830 | return g_array_index(th->fac_list, LttvTraceHookByFacility*, 0); |
| 831 | } |
| 832 | |
| 833 | |
| 834 | /* Returns 0 on success, -1 if fails. */ |
| 835 | gint |
| 836 | lttv_trace_find_hook(LttTrace *t, GQuark facility, GQuark event, |
| 837 | GQuark field1, GQuark field2, GQuark field3, LttvHook h, LttvTraceHook *th) |
| 838 | { |
| 839 | LttFacility *f; |
| 840 | |
| 841 | LttEventType *et, *first_et; |
| 842 | |
| 843 | GArray *facilities; |
| 844 | |
| 845 | guint i, fac_id; |
| 846 | |
| 847 | LttvTraceHookByFacility *thf, *first_thf; |
| 848 | |
| 849 | facilities = ltt_trace_facility_get_by_name(t, facility); |
| 850 | |
| 851 | if(unlikely(facilities == NULL)) goto facility_error; |
| 852 | |
| 853 | th->fac_index = g_array_sized_new(FALSE, TRUE, |
| 854 | sizeof(LttvTraceHookByFacility), |
| 855 | NUM_FACILITIES); |
| 856 | th->fac_index = g_array_set_size(th->fac_index, NUM_FACILITIES); |
| 857 | |
| 858 | th->fac_list = g_array_sized_new(FALSE, TRUE, |
| 859 | sizeof(LttvTraceHookByFacility*), |
| 860 | facilities->len); |
| 861 | th->fac_list = g_array_set_size(th->fac_list, facilities->len); |
| 862 | |
| 863 | fac_id = g_array_index(facilities, guint, 0); |
| 864 | f = ltt_trace_get_facility_by_num(t, fac_id); |
| 865 | |
| 866 | et = ltt_facility_eventtype_get_by_name(f, event); |
| 867 | if(unlikely(et == NULL)) goto event_error; |
| 868 | |
| 869 | thf = &g_array_index(th->fac_index, LttvTraceHookByFacility, fac_id); |
| 870 | g_array_index(th->fac_list, LttvTraceHookByFacility*, 0) |
| 871 | = thf; |
| 872 | thf->h = h; |
| 873 | thf->id = ltt_eventtype_id(et); |
| 874 | thf->f1 = find_field(et, field1); |
| 875 | thf->f2 = find_field(et, field2); |
| 876 | thf->f3 = find_field(et, field3); |
| 877 | |
| 878 | first_thf = thf; |
| 879 | |
| 880 | /* Check for type compatibility too */ |
| 881 | for(i=1;i<facilities->len;i++) { |
| 882 | fac_id = g_array_index(facilities, guint, i); |
| 883 | f = ltt_trace_get_facility_by_num(t, fac_id); |
| 884 | |
| 885 | et = ltt_facility_eventtype_get_by_name(f, ltt_eventtype_name(et)); |
| 886 | if(unlikely(et == NULL)) goto event_error; |
| 887 | |
| 888 | thf = &g_array_index(th->fac_index, LttvTraceHookByFacility, fac_id); |
| 889 | g_array_index(th->fac_list, LttvTraceHookByFacility*, i) |
| 890 | = thf; |
| 891 | thf->h = h; |
| 892 | thf->id = ltt_eventtype_id(et); |
| 893 | thf->f1 = find_field(et, field1); |
| 894 | if(check_fields_compatibility(first_et, et, |
| 895 | first_thf->f1, thf->f1)) |
| 896 | goto type_error; |
| 897 | |
| 898 | thf->f2 = find_field(et, field2); |
| 899 | if(check_fields_compatibility(first_et, et, |
| 900 | first_thf->f2, thf->f2)) |
| 901 | goto type_error; |
| 902 | |
| 903 | thf->f3 = find_field(et, field3); |
| 904 | if(check_fields_compatibility(first_et, et, |
| 905 | first_thf->f3, thf->f3)) |
| 906 | goto type_error; |
| 907 | } |
| 908 | |
| 909 | return 0; |
| 910 | |
| 911 | type_error: |
| 912 | goto free; |
| 913 | event_error: |
| 914 | g_error("Event type %s does not exist", |
| 915 | g_quark_to_string(ltt_eventtype_name(et))); |
| 916 | goto free; |
| 917 | facility_error: |
| 918 | g_error("No %s facility", g_quark_to_string(facility)); |
| 919 | goto free; |
| 920 | free: |
| 921 | g_array_free(th->fac_index, TRUE); |
| 922 | g_array_free(th->fac_list, TRUE); |
| 923 | th->fac_index = NULL; |
| 924 | th->fac_list = NULL; |
| 925 | return -1; |
| 926 | } |
| 927 | |
| 928 | void lttv_trace_hook_destroy(LttvTraceHook *th) |
| 929 | { |
| 930 | g_array_free(th->fac_index, TRUE); |
| 931 | g_array_free(th->fac_list, TRUE); |
| 932 | } |
| 933 | |
| 934 | |
| 935 | LttvTracesetContextPosition *lttv_traceset_context_position_new() |
| 936 | { |
| 937 | LttvTracesetContextPosition *pos = g_new(LttvTracesetContextPosition,1); |
| 938 | pos->ep = g_array_sized_new(FALSE, TRUE, sizeof(LttEventPosition*), |
| 939 | 10); |
| 940 | pos->tfc = g_array_sized_new(FALSE, TRUE, sizeof(LttvTracefileContext*), |
| 941 | 10); |
| 942 | pos->timestamp = ltt_time_infinite; |
| 943 | return pos; |
| 944 | } |
| 945 | |
| 946 | gboolean traverse_get_tfc(gpointer key, gpointer value, gpointer data) |
| 947 | { |
| 948 | LttvTracefileContext *tfc = (LttvTracefileContext *)value; |
| 949 | LttvTracesetContextPosition *pos = (LttvTracesetContextPosition *)data; |
| 950 | |
| 951 | LttEvent *event = ltt_tracefile_get_event(tfc->tf); |
| 952 | LttEventPosition *ep = ltt_event_position_new(); |
| 953 | |
| 954 | ltt_event_position(event, ep); |
| 955 | |
| 956 | g_array_append_val(pos->ep, ep); |
| 957 | g_array_append_val(pos->tfc, tfc); |
| 958 | |
| 959 | if(ltt_time_compare(tfc->timestamp, pos->timestamp) < 0) |
| 960 | pos->timestamp = tfc->timestamp; |
| 961 | |
| 962 | return 0; |
| 963 | } |
| 964 | |
| 965 | /* Subtile modification : |
| 966 | * only save the tracefiles that are loaded in the pqueue */ |
| 967 | void lttv_traceset_context_position_save(const LttvTracesetContext *self, |
| 968 | LttvTracesetContextPosition *pos) |
| 969 | { |
| 970 | g_tree_foreach(self->pqueue, traverse_get_tfc, pos); |
| 971 | } |
| 972 | |
| 973 | void lttv_traceset_context_position_destroy(LttvTracesetContextPosition *pos) |
| 974 | { |
| 975 | int i; |
| 976 | for(i=0;i<pos->ep->len;i++) |
| 977 | g_free(g_array_index(pos->ep, LttEventPosition*, i)); |
| 978 | g_array_free(pos->ep, TRUE); |
| 979 | g_array_free(pos->tfc, TRUE); |
| 980 | g_free(pos); |
| 981 | } |
| 982 | |
| 983 | void lttv_traceset_context_position_copy(LttvTracesetContextPosition *dest, |
| 984 | const LttvTracesetContextPosition *src) |
| 985 | { |
| 986 | int i; |
| 987 | |
| 988 | g_array_set_size(dest->ep, src->ep->len); |
| 989 | g_array_set_size(dest->tfc, src->tfc->len); |
| 990 | |
| 991 | for(i=0;i<src->ep->len;i++) { |
| 992 | g_array_index(dest->ep, LttEventPosition*, i) = ltt_event_position_new(); |
| 993 | ltt_event_position_copy( |
| 994 | g_array_index(dest->ep, LttEventPosition*, i), |
| 995 | g_array_index(src->ep, LttEventPosition*, i)); |
| 996 | } |
| 997 | for(i=0;i<src->tfc->len;i++) { |
| 998 | g_array_index(dest->tfc, LttvTracefileContext*, i) = |
| 999 | g_array_index(src->tfc, LttvTracefileContext*, i); |
| 1000 | } |
| 1001 | dest->timestamp = src->timestamp; |
| 1002 | } |
| 1003 | |
| 1004 | gint lttv_traceset_context_ctx_pos_compare(const LttvTracesetContext *self, |
| 1005 | const LttvTracesetContextPosition *pos) |
| 1006 | { |
| 1007 | int i; |
| 1008 | int ret; |
| 1009 | |
| 1010 | for(i=0;i<pos->ep->len;i++) { |
| 1011 | LttEventPosition *ep = g_array_index(pos->ep, LttEventPosition*, i); |
| 1012 | LttvTracefileContext *tfc = |
| 1013 | g_array_index(pos->tfc, LttvTracefileContext*, i); |
| 1014 | |
| 1015 | LttEvent *event = ltt_tracefile_get_event(tfc->tf); |
| 1016 | |
| 1017 | ret = ltt_event_position_compare((LttEventPosition*)event, |
| 1018 | ep); |
| 1019 | if(ret != 0) return ret; |
| 1020 | |
| 1021 | } |
| 1022 | return 0; |
| 1023 | } |
| 1024 | |
| 1025 | |
| 1026 | gint lttv_traceset_context_pos_pos_compare( |
| 1027 | const LttvTracesetContextPosition *pos1, |
| 1028 | const LttvTracesetContextPosition *pos2) |
| 1029 | { |
| 1030 | int i, j; |
| 1031 | int ret; |
| 1032 | |
| 1033 | for(i=0;i<pos1->ep->len;i++) { |
| 1034 | LttEventPosition *ep1 = g_array_index(pos1->ep, LttEventPosition*, i); |
| 1035 | LttTracefile *tf1 = ltt_event_position_tracefile(ep1); |
| 1036 | |
| 1037 | for(j=0;j<pos2->ep->len;j++) { |
| 1038 | LttEventPosition *ep2 = g_array_index(pos2->ep, LttEventPosition*, j); |
| 1039 | LttTracefile *tf2 = ltt_event_position_tracefile(ep2); |
| 1040 | |
| 1041 | if(tf1 == tf2) { |
| 1042 | ret = ltt_event_position_compare(ep1, ep2); |
| 1043 | if(ret != 0) return ret; |
| 1044 | } |
| 1045 | } |
| 1046 | } |
| 1047 | return 0; |
| 1048 | |
| 1049 | } |
| 1050 | |
| 1051 | |
| 1052 | LttTime lttv_traceset_context_position_get_time( |
| 1053 | const LttvTracesetContextPosition *pos) |
| 1054 | { |
| 1055 | return pos->timestamp; |
| 1056 | } |
| 1057 | |
| 1058 | |
| 1059 | LttvTracefileContext *lttv_traceset_context_get_current_tfc(LttvTracesetContext *self) |
| 1060 | { |
| 1061 | GTree *pqueue = self->pqueue; |
| 1062 | LttvTracefileContext *tfc = NULL; |
| 1063 | |
| 1064 | g_tree_foreach(pqueue, get_first, &tfc); |
| 1065 | |
| 1066 | return tfc; |
| 1067 | } |