ltt/branches/poly/lttv/main/state.c

   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
  20 #include <lttv/state.h>
  21 #include <ltt/facility.h>
  22 #include <ltt/trace.h>
  23 #include <ltt/event.h>
  24 #include <ltt/type.h>
  25
  26 LttvExecutionMode
  27   LTTV_STATE_MODE_UNKNOWN,
  28   LTTV_STATE_USER_MODE,
  29   LTTV_STATE_SYSCALL,
  30   LTTV_STATE_TRAP,
  31   LTTV_STATE_IRQ;
  32
  33 LttvExecutionSubmode
  34   LTTV_STATE_SUBMODE_UNKNOWN,
  35   LTTV_STATE_SUBMODE_NONE;
  36
  37 LttvProcessStatus
  38   LTTV_STATE_UNNAMED,
  39   LTTV_STATE_WAIT_FORK,
  40   LTTV_STATE_WAIT_CPU,
  41   LTTV_STATE_EXIT,
  42   LTTV_STATE_WAIT,
  43   LTTV_STATE_RUN;
  44
  45 static GQuark
  46   LTTV_STATE_TRACEFILES,
  47   LTTV_STATE_PROCESSES,
  48   LTTV_STATE_PROCESS,
  49   LTTV_STATE_EVENT,
  50   LTTV_STATE_SAVED_STATES,
  51   LTTV_STATE_TIME,
  52   LTTV_STATE_HOOKS;
  53
  54
  55 static void fill_name_tables(LttvTraceState *tcs);
  56
  57 static void free_name_tables(LttvTraceState *tcs);
  58
  59 static void lttv_state_free_process_table(GHashTable *processes);
  60
  61
  62 void lttv_state_save(LttvTraceState *self, LttvAttribute *container)
  63 {
  64   LTTV_TRACE_STATE_GET_CLASS(self)->state_save(self, container);
  65 }
  66
  67
  68 void lttv_state_restore(LttvTraceState *self, LttvAttribute *container)
  69 {
  70   LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container);
  71 }
  72
  73
  74 void lttv_state_saved_state_free(LttvTraceState *self,
  75     LttvAttribute *container)
  76 {
  77   LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container);
  78 }
  79
  80
  81 guint process_hash(gconstpointer key)
  82 {
  83   return ((LttvProcessState *)key)->pid;
  84 }
  85
  86
  87 gboolean process_equal(gconstpointer a, gconstpointer b)
  88 {
  89   LttvProcessState *process_a, *process_b;
  90
  91   process_a = (LttvProcessState *)a;
  92   process_b = (LttvProcessState *)b;
  93
  94   if(process_a->pid != process_b->pid) return FALSE;
  95   if(process_a->pid == 0 &&
  96       process_a->last_cpu != process_b->last_cpu) return FALSE;
  97   return TRUE;
  98 }
  99
 100
 101 static void
 102 restore_init_state(LttvTraceState *self)
 103 {
 104   guint i, nb_control, nb_per_cpu, nb_tracefile;
 105
 106   LttvTracefileState *tfcs;
 107
 108   LttTime null_time = {0,0};
 109
 110   if(self->processes != NULL) lttv_state_free_process_table(self->processes);
 111   self->processes = g_hash_table_new(process_hash, process_equal);
 112   self->nb_event = 0;
 113
 114   nb_control = ltt_trace_control_tracefile_number(self->parent.t);
 115   nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
 116   nb_tracefile = nb_control + nb_per_cpu;
 117   for(i = 0 ; i < nb_tracefile ; i++) {
 118     if(i < nb_control) {
 119       tfcs = LTTV_TRACEFILE_STATE(self->parent.control_tracefiles[i]);
 120     }
 121     else {
 122       tfcs = LTTV_TRACEFILE_STATE(self->parent.per_cpu_tracefiles[i - nb_control]);
 123     }
 124
 125     tfcs->parent.timestamp = null_time;
 126     tfcs->saved_position = 0;
 127     tfcs->process = lttv_state_create_process(tfcs, NULL,0);
 128     tfcs->process->state->s = LTTV_STATE_RUN;
 129     tfcs->process->last_cpu = tfcs->cpu_name;
 130   }
 131 }
 132
 133 static LttTime time_zero = {0,0};
 134
 135 static void
 136 init(LttvTracesetState *self, LttvTraceset *ts)
 137 {
 138   guint i, j, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 139
 140   LttvTraceContext *tc;
 141
 142   LttvTraceState *tcs;
 143
 144   LttvTracefileState *tfcs;
 145
 146   LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
 147       init((LttvTracesetContext *)self, ts);
 148
 149   nb_trace = lttv_traceset_number(ts);
 150   for(i = 0 ; i < nb_trace ; i++) {
 151     tc = self->parent.traces[i];
 152     tcs = (LttvTraceState *)tc;
 153     tcs->save_interval = 100000;
 154     tcs->max_time_state_recomputed_in_seek = &time_zero;
 155     fill_name_tables(tcs);
 156
 157     nb_control = ltt_trace_control_tracefile_number(tc->t);
 158     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(tc->t);
 159     nb_tracefile = nb_control + nb_per_cpu;
 160     for(j = 0 ; j < nb_tracefile ; j++) {
 161       if(j < nb_control) {
 162         tfcs = LTTV_TRACEFILE_STATE(tc->control_tracefiles[j]);
 163       }
 164       else {
 165         tfcs = LTTV_TRACEFILE_STATE(tc->per_cpu_tracefiles[j - nb_control]);
 166       }
 167       tfcs->cpu_name= g_quark_from_string(ltt_tracefile_name(tfcs->parent.tf));
 168     }
 169     tcs->processes = NULL;
 170     restore_init_state(tcs);
 171   }
 172 }
 173
 174
 175 static void
 176 fini(LttvTracesetState *self)
 177 {
 178   guint i, j, nb_trace, nb_tracefile;
 179
 180   LttvTraceState *tcs;
 181
 182   LttvTracefileState *tfcs;
 183
 184   nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts);
 185   for(i = 0 ; i < nb_trace ; i++) {
 186     tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]);
 187     lttv_state_free_process_table(tcs->processes);
 188     tcs->processes = NULL;
 189     free_name_tables(tcs);
 190   }
 191   LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
 192       fini((LttvTracesetContext *)self);
 193 }
 194
 195
 196 static LttvTracesetContext *
 197 new_traceset_context(LttvTracesetContext *self)
 198 {
 199   return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL));
 200 }
 201
 202
 203 static LttvTraceContext *
 204 new_trace_context(LttvTracesetContext *self)
 205 {
 206   return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL));
 207 }
 208
 209
 210 static LttvTracefileContext *
 211 new_tracefile_context(LttvTracesetContext *self)
 212 {
 213   return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL));
 214 }
 215
 216
 217 static void copy_process_state(gpointer key, gpointer value,gpointer user_data)
 218 {
 219   LttvProcessState *process, *new_process;
 220
 221   GHashTable *new_processes = (GHashTable *)user_data;
 222
 223   guint i;
 224
 225   process = (LttvProcessState *)value;
 226   new_process = g_new(LttvProcessState, 1);
 227   *new_process = *process;
 228   new_process->execution_stack = g_array_new(FALSE, FALSE,
 229       sizeof(LttvExecutionState));
 230   g_array_set_size(new_process->execution_stack,process->execution_stack->len);
 231   for(i = 0 ; i < process->execution_stack->len; i++) {
 232     g_array_index(new_process->execution_stack, LttvExecutionState, i) =
 233         g_array_index(process->execution_stack, LttvExecutionState, i);
 234   }
 235   new_process->state = &g_array_index(new_process->execution_stack,
 236       LttvExecutionState, new_process->execution_stack->len - 1);
 237   g_hash_table_insert(new_processes, new_process, new_process);
 238 }
 239
 240
 241 static GHashTable *lttv_state_copy_process_table(GHashTable *processes)
 242 {
 243   GHashTable *new_processes = g_hash_table_new(process_hash, process_equal);
 244
 245   g_hash_table_foreach(processes, copy_process_state, new_processes);
 246   return new_processes;
 247 }
 248
 249
 250 /* The saved state for each trace contains a member "processes", which
 251    stores a copy of the process table, and a member "tracefiles" with
 252    one entry per tracefile. Each tracefile has a "process" member pointing
 253    to the current process and a "position" member storing the tracefile
 254    position (needed to seek to the current "next" event. */
 255
 256 static void state_save(LttvTraceState *self, LttvAttribute *container)
 257 {
 258   guint i, nb_control, nb_per_cpu, nb_tracefile;
 259
 260   LttvTracefileState *tfcs;
 261
 262   LttvAttribute *tracefiles_tree, *tracefile_tree;
 263
 264   LttvAttributeType type;
 265
 266   LttvAttributeValue value;
 267
 268   LttvAttributeName name;
 269
 270   LttEventPosition *ep;
 271
 272   tracefiles_tree = lttv_attribute_find_subdir(container,
 273       LTTV_STATE_TRACEFILES);
 274
 275   value = lttv_attribute_add(container, LTTV_STATE_PROCESSES,
 276       LTTV_POINTER);
 277   *(value.v_pointer) = lttv_state_copy_process_table(self->processes);
 278
 279   nb_control = ltt_trace_control_tracefile_number(self->parent.t);
 280   nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
 281   nb_tracefile = nb_control + nb_per_cpu;
 282
 283   for(i = 0 ; i < nb_tracefile ; i++) {
 284     if(i < nb_control)
 285         tfcs = (LttvTracefileState *)self->parent.control_tracefiles[i];
 286     else tfcs = (LttvTracefileState *)
 287         self->parent.per_cpu_tracefiles[i - nb_control];
 288
 289     tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
 290     value = lttv_attribute_add(tracefiles_tree, i,
 291         LTTV_GOBJECT);
 292     *(value.v_gobject) = (GObject *)tracefile_tree;
 293     value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS,
 294         LTTV_UINT);
 295     *(value.v_uint) = tfcs->process->pid;
 296     value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT,
 297         LTTV_POINTER);
 298     if(tfcs->parent.e == NULL) *(value.v_pointer) = NULL;
 299     else {
 300       ep = ltt_event_position_new();
 301       ltt_event_position(tfcs->parent.e, ep);
 302       *(value.v_pointer) = ep;
 303     }
 304   }
 305 }
 306
 307
 308 static void state_restore(LttvTraceState *self, LttvAttribute *container)
 309 {
 310   guint i, nb_control, nb_per_cpu, nb_tracefile, pid;
 311
 312   LttvTracefileState *tfcs;
 313
 314   LttvAttribute *tracefiles_tree, *tracefile_tree;
 315
 316   LttvAttributeType type;
 317
 318   LttvAttributeValue value;
 319
 320   LttvAttributeName name;
 321
 322   LttEventPosition *ep;
 323
 324   tracefiles_tree = lttv_attribute_find_subdir(container,
 325       LTTV_STATE_TRACEFILES);
 326
 327   type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
 328       &value);
 329   g_assert(type == LTTV_POINTER);
 330   lttv_state_free_process_table(self->processes);
 331   self->processes = lttv_state_copy_process_table(*(value.v_pointer));
 332
 333   nb_control = ltt_trace_control_tracefile_number(self->parent.t);
 334   nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
 335   nb_tracefile = nb_control + nb_per_cpu;
 336
 337   for(i = 0 ; i < nb_tracefile ; i++) {
 338     if(i < nb_control) tfcs = (LttvTracefileState *)
 339         self->parent.control_tracefiles[i];
 340     else tfcs = (LttvTracefileState *)
 341         self->parent.per_cpu_tracefiles[i - nb_control];
 342
 343     type = lttv_attribute_get(tracefiles_tree, i, &name, &value);
 344     g_assert(type == LTTV_GOBJECT);
 345     tracefile_tree = *((LttvAttribute **)(value.v_gobject));
 346
 347     type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS,
 348         &value);
 349     g_assert(type == LTTV_UINT);
 350     pid = *(value.v_uint);
 351     tfcs->process = lttv_state_find_process_or_create(tfcs, pid);
 352
 353     type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT,
 354         &value);
 355     g_assert(type == LTTV_POINTER);
 356     if(*(value.v_pointer) == NULL) tfcs->parent.e = NULL;
 357     else {
 358       ep = *(value.v_pointer);
 359       ltt_tracefile_seek_position(tfcs->parent.tf, ep);
 360       tfcs->parent.e = ltt_tracefile_read(tfcs->parent.tf);
 361       tfcs->parent.timestamp = ltt_event_time(tfcs->parent.e);
 362     }
 363   }
 364 }
 365
 366
 367 static void state_saved_free(LttvTraceState *self, LttvAttribute *container)
 368 {
 369   guint i, nb_control, nb_per_cpu, nb_tracefile;
 370
 371   LttvTracefileState *tfcs;
 372
 373   LttvAttribute *tracefiles_tree, *tracefile_tree;
 374
 375   LttvAttributeType type;
 376
 377   LttvAttributeValue value;
 378
 379   LttvAttributeName name;
 380
 381   LttEventPosition *ep;
 382
 383   tracefiles_tree = lttv_attribute_find_subdir(container,
 384       LTTV_STATE_TRACEFILES);
 385   lttv_attribute_remove_by_name(container, LTTV_STATE_TRACEFILES);
 386
 387   type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
 388       &value);
 389   g_assert(type == LTTV_POINTER);
 390   lttv_state_free_process_table(*(value.v_pointer));
 391   *(value.v_pointer) = NULL;
 392   lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES);
 393
 394   nb_control = ltt_trace_control_tracefile_number(self->parent.t);
 395   nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
 396   nb_tracefile = nb_control + nb_per_cpu;
 397
 398   for(i = 0 ; i < nb_tracefile ; i++) {
 399     if(i < nb_control) tfcs = (LttvTracefileState *)
 400         self->parent.control_tracefiles[i];
 401     else tfcs = (LttvTracefileState *)
 402         self->parent.per_cpu_tracefiles[i - nb_control];
 403
 404     type = lttv_attribute_get(tracefiles_tree, i, &name, &value);
 405     g_assert(type == LTTV_GOBJECT);
 406     tracefile_tree = *((LttvAttribute **)(value.v_gobject));
 407
 408     type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT,
 409         &value);
 410     g_assert(type == LTTV_POINTER);
 411     if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer));
 412   }
 413   lttv_attribute_recursive_free(tracefiles_tree);
 414 }
 415
 416
 417 static void
 418 fill_name_tables(LttvTraceState *tcs)
 419 {
 420   int i, nb;
 421
 422   char *f_name, *e_name;
 423
 424   LttvTraceHook h;
 425
 426   LttEventType *et;
 427
 428   LttType *t;
 429
 430   GString *fe_name = g_string_new("");
 431
 432   nb = ltt_trace_eventtype_number(tcs->parent.t);
 433   tcs->eventtype_names = g_new(GQuark, nb);
 434   for(i = 0 ; i < nb ; i++) {
 435     et = ltt_trace_eventtype_get(tcs->parent.t, i);
 436     e_name = ltt_eventtype_name(et);
 437     f_name = ltt_facility_name(ltt_eventtype_facility(et));
 438     g_string_printf(fe_name, "%s.%s", f_name, e_name);
 439     tcs->eventtype_names[i] = g_quark_from_string(fe_name->str);
 440   }
 441
 442   lttv_trace_find_hook(tcs->parent.t, "core", "syscall_entry",
 443       "syscall_id", NULL, NULL, NULL, &h);
 444   t = ltt_field_type(h.f1);
 445   nb = ltt_type_element_number(t);
 446
 447   /* CHECK syscalls should be an emun but currently are not!
 448   tcs->syscall_names = g_new(GQuark, nb);
 449
 450   for(i = 0 ; i < nb ; i++) {
 451     tcs->syscall_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
 452   }
 453   */
 454
 455   tcs->syscall_names = g_new(GQuark, 256);
 456   for(i = 0 ; i < 256 ; i++) {
 457     g_string_printf(fe_name, "syscall %d", i);
 458     tcs->syscall_names[i] = g_quark_from_string(fe_name->str);
 459   }
 460
 461   lttv_trace_find_hook(tcs->parent.t, "core", "trap_entry",
 462       "trap_id", NULL, NULL, NULL, &h);
 463   t = ltt_field_type(h.f1);
 464   nb = ltt_type_element_number(t);
 465
 466   /*
 467   tcs->trap_names = g_new(GQuark, nb);
 468   for(i = 0 ; i < nb ; i++) {
 469     tcs->trap_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
 470   }
 471   */
 472
 473   tcs->trap_names = g_new(GQuark, 256);
 474   for(i = 0 ; i < 256 ; i++) {
 475     g_string_printf(fe_name, "trap %d", i);
 476     tcs->trap_names[i] = g_quark_from_string(fe_name->str);
 477   }
 478
 479   lttv_trace_find_hook(tcs->parent.t, "core", "irq_entry",
 480       "irq_id", NULL, NULL, NULL, &h);
 481   t = ltt_field_type(h.f1);
 482   nb = ltt_type_element_number(t);
 483
 484   /*
 485   tcs->irq_names = g_new(GQuark, nb);
 486   for(i = 0 ; i < nb ; i++) {
 487     tcs->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
 488   }
 489   */
 490
 491   tcs->irq_names = g_new(GQuark, 256);
 492   for(i = 0 ; i < 256 ; i++) {
 493     g_string_printf(fe_name, "irq %d", i);
 494     tcs->irq_names[i] = g_quark_from_string(fe_name->str);
 495   }
 496
 497   g_string_free(fe_name, TRUE);
 498 }
 499
 500
 501 static void
 502 free_name_tables(LttvTraceState *tcs)
 503 {
 504   g_free(tcs->eventtype_names);
 505   g_free(tcs->syscall_names);
 506   g_free(tcs->trap_names);
 507   g_free(tcs->irq_names);
 508 }
 509
 510
 511 static void push_state(LttvTracefileState *tfs, LttvExecutionMode t,
 512     guint state_id)
 513 {
 514   LttvExecutionState *es;
 515
 516   LttvProcessState *process = tfs->process;
 517
 518   guint depth = process->execution_stack->len;
 519
 520   g_array_set_size(process->execution_stack, depth + 1);
 521   es = &g_array_index(process->execution_stack, LttvExecutionState, depth);
 522   es->t = t;
 523   es->n = state_id;
 524   es->entry = es->change = tfs->parent.timestamp;
 525   es->s = process->state->s;
 526   process->state = es;
 527 }
 528
 529
 530 static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t)
 531 {
 532   LttvProcessState *process = tfs->process;
 533
 534   guint depth = process->execution_stack->len - 1;
 535
 536   if(process->state->t != t){
 537     g_warning("Different execution mode type (%d.%09d): ignore it\n",
 538         tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
 539     g_warning("process state has %s when pop_int is %s\n",
 540                     g_quark_to_string(process->state->t),
 541                     g_quark_to_string(t));
 542     g_warning("{ %u, %u, %s, %s }\n",
 543                     process->pid,
 544                     process->ppid,
 545                     g_quark_to_string(process->name),
 546                     g_quark_to_string(process->state->s));
 547     return;
 548   }
 549
 550   if(depth == 0){
 551     g_warning("Trying to pop last state on stack (%d.%09d): ignore it\n",
 552         tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
 553     return;
 554   }
 555
 556   g_array_remove_index(process->execution_stack, depth);
 557   depth--;
 558   process->state = &g_array_index(process->execution_stack, LttvExecutionState,
 559       depth);
 560   process->state->change = tfs->parent.timestamp;
 561 }
 562
 563
 564 LttvProcessState *
 565 lttv_state_create_process(LttvTracefileState *tfs, LttvProcessState *parent,
 566     guint pid)
 567 {
 568   LttvProcessState *process = g_new(LttvProcessState, 1);
 569
 570   LttvExecutionState *es;
 571
 572   LttvTraceContext *tc;
 573
 574   LttvTraceState *tcs;
 575
 576   char buffer[128];
 577
 578   tcs = (LttvTraceState *)tc = tfs->parent.t_context;
 579
 580   process->pid = pid;
 581   process->last_cpu = tfs->cpu_name;
 582   g_hash_table_insert(tcs->processes, process, process);
 583
 584   if(parent) {
 585     process->ppid = parent->pid;
 586     process->name = parent->name;
 587     process->creation_time = tfs->parent.timestamp;
 588   }
 589
 590   /* No parent. This process exists but we are missing all information about
 591      its creation. The birth time is set to zero but we remember the time of
 592      insertion */
 593
 594   else {
 595     process->ppid = 0;
 596     process->name = LTTV_STATE_UNNAMED;
 597     process->creation_time = ltt_time_zero;
 598   }
 599
 600   process->insertion_time = tfs->parent.timestamp;
 601   sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec,
 602           process->creation_time.tv_nsec);
 603   process->pid_time = g_quark_from_string(buffer);
 604   process->last_cpu = tfs->cpu_name;
 605   process->execution_stack = g_array_new(FALSE, FALSE,
 606       sizeof(LttvExecutionState));
 607   g_array_set_size(process->execution_stack, 1);
 608   es = process->state = &g_array_index(process->execution_stack,
 609       LttvExecutionState, 0);
 610   es->t = LTTV_STATE_USER_MODE;
 611   es->n = LTTV_STATE_SUBMODE_NONE;
 612   es->entry = tfs->parent.timestamp;
 613   es->change = tfs->parent.timestamp;
 614   es->s = LTTV_STATE_WAIT_FORK;
 615
 616   return process;
 617 }
 618
 619
 620 LttvProcessState *
 621 lttv_state_find_process_from_trace(LttvTraceState *ts, GQuark cpu, guint pid)
 622 {
 623   LttvProcessState key;
 624   LttvProcessState *process;
 625
 626   key.pid = pid;
 627   key.last_cpu = cpu;
 628   process = g_hash_table_lookup(ts->processes, &key);
 629   return process;
 630 }
 631
 632
 633 LttvProcessState *lttv_state_find_process(LttvTracefileState *tfs,
 634     guint pid)
 635 {
 636   LttvTraceState *ts =(LttvTraceState *)tfs->parent.t_context;
 637   return lttv_state_find_process_from_trace(ts, tfs->cpu_name, pid);
 638 }
 639
 640
 641 LttvProcessState *
 642 lttv_state_find_process_or_create(LttvTracefileState *tfs, guint pid)
 643 {
 644   LttvProcessState *process = lttv_state_find_process(tfs, pid);
 645
 646   if(process == NULL) process = lttv_state_create_process(tfs, NULL, pid);
 647   return process;
 648 }
 649
 650
 651 static void exit_process(LttvTracefileState *tfs, LttvProcessState *process)
 652 {
 653   LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context);
 654   LttvProcessState key;
 655
 656   key.pid = process->pid;
 657   key.last_cpu = process->last_cpu;
 658   g_hash_table_remove(ts->processes, &key);
 659   g_array_free(process->execution_stack, TRUE);
 660   g_free(process);
 661 }
 662
 663
 664 static void free_process_state(gpointer key, gpointer value,gpointer user_data)
 665 {
 666   g_array_free(((LttvProcessState *)value)->execution_stack, TRUE);
 667   g_free(value);
 668 }
 669
 670
 671 static void lttv_state_free_process_table(GHashTable *processes)
 672 {
 673   g_hash_table_foreach(processes, free_process_state, NULL);
 674   g_hash_table_destroy(processes);
 675 }
 676
 677
 678 static gboolean syscall_entry(void *hook_data, void *call_data)
 679 {
 680   LttField *f = ((LttvTraceHook *)hook_data)->f1;
 681
 682   LttvTracefileState *s = (LttvTracefileState *)call_data;
 683
 684   LttvExecutionSubmode submode;
 685
 686   submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[
 687       ltt_event_get_unsigned(s->parent.e, f)];
 688   push_state(s, LTTV_STATE_SYSCALL, submode);
 689   return FALSE;
 690 }
 691
 692
 693 static gboolean syscall_exit(void *hook_data, void *call_data)
 694 {
 695   LttvTracefileState *s = (LttvTracefileState *)call_data;
 696
 697   pop_state(s, LTTV_STATE_SYSCALL);
 698   return FALSE;
 699 }
 700
 701
 702 static gboolean trap_entry(void *hook_data, void *call_data)
 703 {
 704   LttField *f = ((LttvTraceHook *)hook_data)->f1;
 705
 706   LttvTracefileState *s = (LttvTracefileState *)call_data;
 707
 708   LttvExecutionSubmode submode;
 709
 710   submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[
 711       ltt_event_get_unsigned(s->parent.e, f)];
 712   push_state(s, LTTV_STATE_TRAP, submode);
 713   return FALSE;
 714 }
 715
 716
 717 static gboolean trap_exit(void *hook_data, void *call_data)
 718 {
 719   LttvTracefileState *s = (LttvTracefileState *)call_data;
 720
 721   pop_state(s, LTTV_STATE_TRAP);
 722   return FALSE;
 723 }
 724
 725
 726 static gboolean irq_entry(void *hook_data, void *call_data)
 727 {
 728   LttField *f = ((LttvTraceHook *)hook_data)->f1;
 729
 730   LttvTracefileState *s = (LttvTracefileState *)call_data;
 731
 732   LttvExecutionSubmode submode;
 733
 734   submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[
 735       ltt_event_get_unsigned(s->parent.e, f)];
 736
 737   /* Do something with the info about being in user or system mode when int? */
 738   push_state(s, LTTV_STATE_IRQ, submode);
 739   return FALSE;
 740 }
 741
 742
 743 static gboolean irq_exit(void *hook_data, void *call_data)
 744 {
 745   LttvTracefileState *s = (LttvTracefileState *)call_data;
 746
 747   pop_state(s, LTTV_STATE_IRQ);
 748   return FALSE;
 749 }
 750
 751
 752 static gboolean schedchange(void *hook_data, void *call_data)
 753 {
 754   LttvTraceHook *h = (LttvTraceHook *)hook_data;
 755
 756   LttvTracefileState *s = (LttvTracefileState *)call_data;
 757
 758   guint pid_in, pid_out, state_out;
 759
 760   pid_in = ltt_event_get_unsigned(s->parent.e, h->f1);
 761   pid_out = ltt_event_get_unsigned(s->parent.e, h->f2);
 762   state_out = ltt_event_get_unsigned(s->parent.e, h->f3);
 763
 764   if(s->process != NULL) {
 765
 766     if(state_out == 0) s->process->state->s = LTTV_STATE_WAIT_CPU;
 767     else if(s->process->state->s == LTTV_STATE_EXIT)
 768         exit_process(s, s->process);
 769     else s->process->state->s = LTTV_STATE_WAIT;
 770
 771     if(s->process->pid == 0)
 772       s->process->pid = pid_out;
 773
 774     s->process->state->change = s->parent.timestamp;
 775   }
 776   s->process = lttv_state_find_process_or_create(s, pid_in);
 777   s->process->state->s = LTTV_STATE_RUN;
 778   s->process->last_cpu = s->cpu_name;
 779   s->process->state->change = s->parent.timestamp;
 780   return FALSE;
 781 }
 782
 783
 784 static gboolean process_fork(void *hook_data, void *call_data)
 785 {
 786   LttField *f = ((LttvTraceHook *)hook_data)->f1;
 787
 788   LttvTracefileState *s = (LttvTracefileState *)call_data;
 789
 790   guint child_pid;
 791
 792   child_pid = ltt_event_get_unsigned(s->parent.e, f);
 793   lttv_state_create_process(s, s->process, child_pid);
 794   return FALSE;
 795 }
 796
 797
 798 static gboolean process_exit(void *hook_data, void *call_data)
 799 {
 800   LttvTracefileState *s = (LttvTracefileState *)call_data;
 801
 802   if(s->process != NULL) {
 803     s->process->state->s = LTTV_STATE_EXIT;
 804   }
 805   return FALSE;
 806 }
 807
 808
 809 void lttv_state_add_event_hooks(LttvTracesetState *self)
 810 {
 811   LttvTraceset *traceset = self->parent.ts;
 812
 813   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 814
 815   LttvTraceState *ts;
 816
 817   LttvTracefileState *tfs;
 818
 819   GArray *hooks;
 820
 821   LttvTraceHook hook;
 822
 823   LttvAttributeValue val;
 824
 825   nb_trace = lttv_traceset_number(traceset);
 826   for(i = 0 ; i < nb_trace ; i++) {
 827     ts = (LttvTraceState *)self->parent.traces[i];
 828
 829     /* Find the eventtype id for the following events and register the
 830        associated by id hooks. */
 831
 832     hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook));
 833     g_array_set_size(hooks, 9);
 834
 835     lttv_trace_find_hook(ts->parent.t, "core","syscall_entry","syscall_id",
 836         NULL, NULL, syscall_entry, &g_array_index(hooks, LttvTraceHook, 0));
 837
 838     lttv_trace_find_hook(ts->parent.t, "core", "syscall_exit", NULL, NULL,
 839         NULL, syscall_exit, &g_array_index(hooks, LttvTraceHook, 1));
 840
 841     lttv_trace_find_hook(ts->parent.t, "core", "trap_entry", "trap_id",
 842         NULL, NULL, trap_entry, &g_array_index(hooks, LttvTraceHook, 2));
 843
 844     lttv_trace_find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL, NULL,
 845         trap_exit, &g_array_index(hooks, LttvTraceHook, 3));
 846
 847     lttv_trace_find_hook(ts->parent.t, "core", "irq_entry", "irq_id", NULL,
 848         NULL, irq_entry, &g_array_index(hooks, LttvTraceHook, 4));
 849
 850     lttv_trace_find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL, NULL,
 851         irq_exit, &g_array_index(hooks, LttvTraceHook, 5));
 852
 853     lttv_trace_find_hook(ts->parent.t, "core", "schedchange", "in", "out",
 854         "out_state", schedchange, &g_array_index(hooks, LttvTraceHook, 6));
 855
 856     lttv_trace_find_hook(ts->parent.t, "core", "process_fork", "child_pid",
 857         NULL, NULL, process_fork, &g_array_index(hooks, LttvTraceHook, 7));
 858
 859     lttv_trace_find_hook(ts->parent.t, "core", "process_exit", NULL, NULL,
 860         NULL, process_exit, &g_array_index(hooks, LttvTraceHook, 8));
 861
 862     /* Add these hooks to each before_event_by_id hooks list */
 863
 864     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 865     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 866     nb_tracefile = nb_control + nb_per_cpu;
 867     for(j = 0 ; j < nb_tracefile ; j++) {
 868       if(j < nb_control) {
 869         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
 870       }
 871       else {
 872         tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
 873       }
 874
 875       for(k = 0 ; k < hooks->len ; k++) {
 876         hook = g_array_index(hooks, LttvTraceHook, k);
 877         lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.after_event_by_id,
 878           hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k));
 879       }
 880     }
 881     lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
 882     *(val.v_pointer) = hooks;
 883   }
 884 }
 885
 886
 887 void lttv_state_remove_event_hooks(LttvTracesetState *self)
 888 {
 889   LttvTraceset *traceset = self->parent.ts;
 890
 891   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 892
 893   LttvTraceState *ts;
 894
 895   LttvTracefileState *tfs;
 896
 897   GArray *hooks;
 898
 899   LttvTraceHook hook;
 900
 901   LttvAttributeValue val;
 902
 903   nb_trace = lttv_traceset_number(traceset);
 904   for(i = 0 ; i < nb_trace ; i++) {
 905     ts = LTTV_TRACE_STATE(self->parent.traces[i]);
 906     lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
 907     hooks = *(val.v_pointer);
 908
 909     /* Add these hooks to each before_event_by_id hooks list */
 910
 911     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 912     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 913     nb_tracefile = nb_control + nb_per_cpu;
 914     for(j = 0 ; j < nb_tracefile ; j++) {
 915       if(j < nb_control) {
 916         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
 917       }
 918       else {
 919         tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
 920       }
 921
 922       for(k = 0 ; k < hooks->len ; k++) {
 923         hook = g_array_index(hooks, LttvTraceHook, k);
 924         lttv_hooks_remove_data(
 925             lttv_hooks_by_id_find(tfs->parent.after_event_by_id,
 926             hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k));
 927       }
 928     }
 929     g_array_free(hooks, TRUE);
 930   }
 931 }
 932
 933
 934 static gboolean block_end(void *hook_data, void *call_data)
 935 {
 936   LttvTracefileState *tfcs = (LttvTracefileState *)call_data;
 937
 938   LttvTraceState *tcs = (LttvTraceState *)(tfcs->parent.t_context);
 939
 940   LttEventPosition *ep = ltt_event_position_new();
 941
 942   guint nb_block, nb_event;
 943
 944   LttTracefile *tf;
 945
 946   LttvAttribute *saved_states_tree, *saved_state_tree;
 947
 948   LttvAttributeValue value;
 949
 950   ltt_event_position(tfcs->parent.e, ep);
 951
 952   ltt_event_position_get(ep, &nb_block, &nb_event, &tf);
 953   tcs->nb_event += nb_event - tfcs->saved_position;
 954   tfcs->saved_position = 0;
 955   if(tcs->nb_event >= tcs->save_interval) {
 956     saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
 957         LTTV_STATE_SAVED_STATES);
 958     saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
 959     value = lttv_attribute_add(saved_states_tree,
 960         lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT);
 961     *(value.v_gobject) = (GObject *)saved_state_tree;
 962     value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME);
 963     *(value.v_time) = tfcs->parent.timestamp;
 964     lttv_state_save(tcs, saved_state_tree);
 965     tcs->nb_event = 0;
 966   }
 967   return FALSE;
 968 }
 969
 970
 971 void lttv_state_save_add_event_hooks(LttvTracesetState *self)
 972 {
 973   LttvTraceset *traceset = self->parent.ts;
 974
 975   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 976
 977   LttvTraceState *ts;
 978
 979   LttvTracefileState *tfs;
 980
 981   LttvTraceHook hook;
 982
 983   nb_trace = lttv_traceset_number(traceset);
 984   for(i = 0 ; i < nb_trace ; i++) {
 985     ts = (LttvTraceState *)self->parent.traces[i];
 986     lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL,
 987         NULL, NULL, block_end, &hook);
 988
 989     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 990     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 991     nb_tracefile = nb_control + nb_per_cpu;
 992     for(j = 0 ; j < nb_tracefile ; j++) {
 993       if(j < nb_control) {
 994         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
 995       }
 996       else {
 997         tfs =LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
 998       }
 999
1000       lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.after_event_by_id,
1001           hook.id), hook.h, NULL);
1002     }
1003   }
1004 }
1005
1006
1007 void lttv_state_save_remove_event_hooks(LttvTracesetState *self)
1008 {
1009   LttvTraceset *traceset = self->parent.ts;
1010
1011   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
1012
1013   LttvTraceState *ts;
1014
1015   LttvTracefileState *tfs;
1016
1017   LttvTraceHook hook;
1018
1019   nb_trace = lttv_traceset_number(traceset);
1020   for(i = 0 ; i < nb_trace ; i++) {
1021     ts = LTTV_TRACE_STATE(self->parent.traces[i]);
1022     lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL,
1023         NULL, NULL, block_end, &hook);
1024
1025     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
1026     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
1027     nb_tracefile = nb_control + nb_per_cpu;
1028     for(j = 0 ; j < nb_tracefile ; j++) {
1029       if(j < nb_control) {
1030         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
1031       }
1032       else {
1033         tfs =LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
1034       }
1035
1036       lttv_hooks_remove_data(lttv_hooks_by_id_find(
1037           tfs->parent.after_event_by_id, hook.id), hook.h, NULL);
1038     }
1039   }
1040 }
1041
1042
1043 void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t)
1044 {
1045   LttvTraceset *traceset = self->parent.ts;
1046
1047   guint i, j, nb_trace, nb_saved_state;
1048
1049   int min_pos, mid_pos, max_pos;
1050
1051   LttvTraceState *tcs;
1052
1053   LttvAttributeValue value;
1054
1055   LttvAttributeType type;
1056
1057   LttvAttributeName name;
1058
1059   LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree;
1060
1061   nb_trace = lttv_traceset_number(traceset);
1062   for(i = 0 ; i < nb_trace ; i++) {
1063     tcs = (LttvTraceState *)self->parent.traces[i];
1064
1065     if(ltt_time_compare(t, *(tcs->max_time_state_recomputed_in_seek)) < 0) {
1066       saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
1067           LTTV_STATE_SAVED_STATES);
1068       min_pos = -1;
1069
1070       if(saved_states_tree) {
1071         max_pos = lttv_attribute_get_number(saved_states_tree) - 1;
1072         mid_pos = max_pos / 2;
1073         while(min_pos < max_pos) {
1074           type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value);
1075           g_assert(type == LTTV_GOBJECT);
1076           saved_state_tree = *((LttvAttribute **)(value.v_gobject));
1077           type = lttv_attribute_get_by_name(saved_state_tree, LTTV_STATE_TIME,
1078               &value);
1079           g_assert(type == LTTV_TIME);
1080           if(ltt_time_compare(*(value.v_time), t) < 0) {
1081             min_pos = mid_pos;
1082             closest_tree = saved_state_tree;
1083           }
1084           else max_pos = mid_pos - 1;
1085
1086           mid_pos = (min_pos + max_pos + 1) / 2;
1087         }
1088       }
1089
1090       /* restore the closest earlier saved state */
1091       if(min_pos != -1) lttv_state_restore(tcs, closest_tree);
1092
1093       /* There is no saved state, yet we want to have it. Restart at T0 */
1094       else {
1095         restore_init_state(tcs);
1096         lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero);
1097       }
1098     }
1099     /* We want to seek quickly without restoring/updating the state */
1100     else {
1101       restore_init_state(tcs);
1102       lttv_process_trace_seek_time(&(tcs->parent), t);
1103     }
1104   }
1105 }
1106
1107
1108 static void
1109 traceset_state_instance_init (GTypeInstance *instance, gpointer g_class)
1110 {
1111 }
1112
1113
1114 static void
1115 traceset_state_finalize (LttvTracesetState *self)
1116 {
1117   G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
1118       finalize(G_OBJECT(self));
1119 }
1120
1121
1122 static void
1123 traceset_state_class_init (LttvTracesetContextClass *klass)
1124 {
1125   GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
1126
1127   gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize;
1128   klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init;
1129   klass->fini = (void (*)(LttvTracesetContext *self))fini;
1130   klass->new_traceset_context = new_traceset_context;
1131   klass->new_trace_context = new_trace_context;
1132   klass->new_tracefile_context = new_tracefile_context;
1133 }
1134
1135
1136 GType
1137 lttv_traceset_state_get_type(void)
1138 {
1139   static GType type = 0;
1140   if (type == 0) {
1141     static const GTypeInfo info = {
1142       sizeof (LttvTracesetStateClass),
1143       NULL,   /* base_init */
1144       NULL,   /* base_finalize */
1145       (GClassInitFunc) traceset_state_class_init,   /* class_init */
1146       NULL,   /* class_finalize */
1147       NULL,   /* class_data */
1148       sizeof (LttvTracesetContext),
1149       0,      /* n_preallocs */
1150       (GInstanceInitFunc) traceset_state_instance_init    /* instance_init */
1151     };
1152
1153     type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType",
1154         &info, 0);
1155   }
1156   return type;
1157 }
1158
1159
1160 static void
1161 trace_state_instance_init (GTypeInstance *instance, gpointer g_class)
1162 {
1163 }
1164
1165
1166 static void
1167 trace_state_finalize (LttvTraceState *self)
1168 {
1169   G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))->
1170       finalize(G_OBJECT(self));
1171 }
1172
1173
1174 static void
1175 trace_state_class_init (LttvTraceStateClass *klass)
1176 {
1177   GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
1178
1179   gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize;
1180   klass->state_save = state_save;
1181   klass->state_restore = state_restore;
1182   klass->state_saved_free = state_saved_free;
1183 }
1184
1185
1186 GType
1187 lttv_trace_state_get_type(void)
1188 {
1189   static GType type = 0;
1190   if (type == 0) {
1191     static const GTypeInfo info = {
1192       sizeof (LttvTraceStateClass),
1193       NULL,   /* base_init */
1194       NULL,   /* base_finalize */
1195       (GClassInitFunc) trace_state_class_init,   /* class_init */
1196       NULL,   /* class_finalize */
1197       NULL,   /* class_data */
1198       sizeof (LttvTraceState),
1199       0,      /* n_preallocs */
1200       (GInstanceInitFunc) trace_state_instance_init    /* instance_init */
1201     };
1202
1203     type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE,
1204         "LttvTraceStateType", &info, 0);
1205   }
1206   return type;
1207 }
1208
1209
1210 static void
1211 tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class)
1212 {
1213 }
1214
1215
1216 static void
1217 tracefile_state_finalize (LttvTracefileState *self)
1218 {
1219   G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))->
1220       finalize(G_OBJECT(self));
1221 }
1222
1223
1224 static void
1225 tracefile_state_class_init (LttvTracefileStateClass *klass)
1226 {
1227   GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
1228
1229   gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize;
1230 }
1231
1232
1233 GType
1234 lttv_tracefile_state_get_type(void)
1235 {
1236   static GType type = 0;
1237   if (type == 0) {
1238     static const GTypeInfo info = {
1239       sizeof (LttvTracefileStateClass),
1240       NULL,   /* base_init */
1241       NULL,   /* base_finalize */
1242       (GClassInitFunc) tracefile_state_class_init,   /* class_init */
1243       NULL,   /* class_finalize */
1244       NULL,   /* class_data */
1245       sizeof (LttvTracefileState),
1246       0,      /* n_preallocs */
1247       (GInstanceInitFunc) tracefile_state_instance_init    /* instance_init */
1248     };
1249
1250     type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE,
1251         "LttvTracefileStateType", &info, 0);
1252   }
1253   return type;
1254 }
1255
1256
1257 void lttv_state_init(int argc, char **argv)
1258 {
1259   LTTV_STATE_UNNAMED = g_quark_from_string("unnamed");
1260   LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("unknown execution mode");
1261   LTTV_STATE_USER_MODE = g_quark_from_string("user mode");
1262   LTTV_STATE_WAIT_FORK = g_quark_from_string("wait fork");
1263   LTTV_STATE_SYSCALL = g_quark_from_string("system call");
1264   LTTV_STATE_TRAP = g_quark_from_string("trap");
1265   LTTV_STATE_IRQ = g_quark_from_string("irq");
1266   LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("unknown submode");
1267   LTTV_STATE_SUBMODE_NONE = g_quark_from_string("(no submode)");
1268   LTTV_STATE_WAIT_CPU = g_quark_from_string("wait for cpu");
1269   LTTV_STATE_EXIT = g_quark_from_string("exiting");
1270   LTTV_STATE_WAIT = g_quark_from_string("wait for I/O");
1271   LTTV_STATE_RUN = g_quark_from_string("running");
1272   LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles");
1273   LTTV_STATE_PROCESSES = g_quark_from_string("processes");
1274   LTTV_STATE_PROCESS = g_quark_from_string("process");
1275   LTTV_STATE_EVENT = g_quark_from_string("event");
1276   LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states");
1277   LTTV_STATE_TIME = g_quark_from_string("time");
1278   LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks");
1279 }
1280
1281 void lttv_state_destroy()
1282 {
1283 }
1284
1285
1286
1287