ltt/branches/poly/lttv/state.c

   1
   2 #include <lttv/state.h>
   3 #include <ltt/facility.h>
   4 #include <ltt/trace.h>
   5
   6 LttvInterruptType
   7   LTTV_STATE_USER_MODE,
   8   LTTV_STATE_SYSCALL,
   9   LTTV_STATE_TRAP,
  10   LTTV_STATE_IRQ;
  11
  12
  13 LttvProcessStatus
  14   LTTV_STATE_UNNAMED,
  15   LTTV_STATE_WAIT_FORK,
  16   LTTV_STATE_WAIT_CPU,
  17   LTTV_STATE_EXIT,
  18   LTTV_STATE_WAIT,
  19   LTTV_STATE_RUN;
  20
  21 static GQuark
  22   LTTV_STATE_HOOKS;
  23
  24 void remove_all_processes(GHashTable *processes);
  25
  26 LttvProcessState *create_process(LttvTracefileState *tfs,
  27                                  LttvProcessState *parent, guint pid);
  28
  29 static void
  30 init(LttvTracesetState *self, LttvTraceset *ts)
  31 {
  32   guint i, j, nb_trace, nb_tracefile;
  33
  34   LttvTraceContext *tc;
  35
  36   LttvTraceState *tcs;
  37
  38   LttvTracefileContext *tfc;
  39
  40   LttvTracefileState *tfcs;
  41
  42   LttTime timestamp = {0,0};
  43
  44   LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek_parent(LTTV_TRACESET_STATE_GET_CLASS(self)))->init((LttvTracesetContext *)self, ts);
  45
  46   nb_trace = lttv_traceset_number(ts);
  47   for(i = 0 ; i < nb_trace ; i++) {
  48     tcs = (LttvTraceState *)tc = (LTTV_TRACESET_CONTEXT(self)->traces[i]);
  49     tcs->processes = g_hash_table_new(g_direct_hash, g_direct_equal);
  50
  51     nb_tracefile = ltt_trace_control_tracefile_number(tc->t);
  52     for(j = 0 ; j < nb_tracefile ; j++) {
  53       tfcs = (LttvTracefileState *)tfc = tc->control_tracefiles[j];
  54       tfc->timestamp = timestamp;
  55       tfcs->process = create_process(tfcs, NULL,0);
  56     }
  57
  58     nb_tracefile = ltt_trace_per_cpu_tracefile_number(tc->t);
  59     for(j = 0 ; j < nb_tracefile ; j++) {
  60       tfcs = (LttvTracefileState *)tfc = tc->per_cpu_tracefiles[j];
  61       tfc->timestamp = timestamp;
  62       tfcs->process = create_process(tfcs, NULL,0);
  63     }
  64   }
  65 }
  66
  67
  68 static void
  69 fini(LttvTracesetState *self)
  70 {
  71   guint i, j, nb_trace, nb_tracefile;
  72
  73   LttvTraceState *tcs;
  74
  75   LttvTracefileState *tfcs;
  76
  77   nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts);
  78   for(i = 0 ; i < nb_trace ; i++) {
  79     tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]);
  80     remove_all_processes(tcs->processes);
  81     g_hash_table_destroy(tcs->processes);
  82   }
  83   LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek_parent(LTTV_TRACESET_STATE_GET_CLASS(self)))->fini((LttvTracesetContext *)self);
  84 }
  85
  86
  87 static LttvTracesetContext *
  88 new_traceset_context(LttvTracesetContext *self)
  89 {
  90   return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL));
  91 }
  92
  93
  94 static LttvTraceContext *
  95 new_trace_context(LttvTracesetContext *self)
  96 {
  97   return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL));
  98 }
  99
 100
 101 static LttvTracefileContext *
 102 new_tracefile_context(LttvTracesetContext *self)
 103 {
 104   return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL));
 105 }
 106
 107
 108 static void
 109 traceset_state_instance_init (GTypeInstance *instance, gpointer g_class)
 110 {
 111 }
 112
 113
 114 static void
 115 traceset_state_finalize (LttvTracesetState *self)
 116 {
 117   G_OBJECT_CLASS(g_type_class_peek_parent(g_type_class_peek_parent(LTTV_TRACESET_STATE_GET_CLASS(self))))->finalize(G_OBJECT(self));
 118 }
 119
 120
 121 static void
 122 traceset_state_class_init (LttvTracesetContextClass *klass)
 123 {
 124   GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
 125
 126   gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize;
 127   klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init;
 128   klass->fini = (void (*)(LttvTracesetContext *self))fini;
 129   klass->new_traceset_context = new_traceset_context;
 130   klass->new_trace_context = new_trace_context;
 131   klass->new_tracefile_context = new_tracefile_context;
 132 }
 133
 134
 135 GType
 136 lttv_traceset_state_get_type(void)
 137 {
 138   static GType type = 0;
 139   if (type == 0) {
 140     static const GTypeInfo info = {
 141       sizeof (LttvTracesetStateClass),
 142       NULL,   /* base_init */
 143       NULL,   /* base_finalize */
 144       (GClassInitFunc) traceset_state_class_init,   /* class_init */
 145       NULL,   /* class_finalize */
 146       NULL,   /* class_data */
 147       sizeof (LttvTracesetContext),
 148       0,      /* n_preallocs */
 149       (GInstanceInitFunc) traceset_state_instance_init    /* instance_init */
 150     };
 151
 152     type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType",
 153         &info, 0);
 154   }
 155   return type;
 156 }
 157
 158
 159 static void
 160 trace_state_instance_init (GTypeInstance *instance, gpointer g_class)
 161 {
 162 }
 163
 164
 165 static void
 166 trace_state_finalize (LttvTraceState *self)
 167 {
 168   G_OBJECT_CLASS(g_type_class_peek_parent(g_type_class_peek_parent(LTTV_TRACE_STATE_GET_CLASS(self))))->finalize(G_OBJECT(self));
 169 }
 170
 171
 172 static void
 173 trace_state_class_init (LttvTraceContextClass *klass)
 174 {
 175   GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
 176
 177   gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize;
 178 }
 179
 180
 181 GType
 182 lttv_trace_state_get_type(void)
 183 {
 184   static GType type = 0;
 185   if (type == 0) {
 186     static const GTypeInfo info = {
 187       sizeof (LttvTraceStateClass),
 188       NULL,   /* base_init */
 189       NULL,   /* base_finalize */
 190       (GClassInitFunc) trace_state_class_init,   /* class_init */
 191       NULL,   /* class_finalize */
 192       NULL,   /* class_data */
 193       sizeof (LttvTraceState),
 194       0,      /* n_preallocs */
 195       (GInstanceInitFunc) trace_state_instance_init    /* instance_init */
 196     };
 197
 198     type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE,
 199         "LttvTraceStateType", &info, 0);
 200   }
 201   return type;
 202 }
 203
 204
 205 static void
 206 tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class)
 207 {
 208 }
 209
 210
 211 static void
 212 tracefile_state_finalize (LttvTracefileState *self)
 213 {
 214   G_OBJECT_CLASS(g_type_class_peek_parent(g_type_class_peek_parent(LTTV_TRACEFILE_STATE_GET_CLASS(self))))->finalize(G_OBJECT(self));
 215 }
 216
 217
 218 static void
 219 tracefile_state_class_init (LttvTracefileStateClass *klass)
 220 {
 221   GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
 222
 223   gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize;
 224 }
 225
 226
 227 GType
 228 lttv_tracefile_state_get_type(void)
 229 {
 230   static GType type = 0;
 231   if (type == 0) {
 232     static const GTypeInfo info = {
 233       sizeof (LttvTracefileStateClass),
 234       NULL,   /* base_init */
 235       NULL,   /* base_finalize */
 236       (GClassInitFunc) tracefile_state_class_init,   /* class_init */
 237       NULL,   /* class_finalize */
 238       NULL,   /* class_data */
 239       sizeof (LttvTracefileState),
 240       0,      /* n_preallocs */
 241       (GInstanceInitFunc) tracefile_state_instance_init    /* instance_init */
 242     };
 243
 244     type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE,
 245         "LttvTracefileStateType", &info, 0);
 246   }
 247   return type;
 248 }
 249
 250
 251 struct HookData {
 252   LttField *f1;
 253   LttField *f2;
 254   LttField *f3;
 255 };
 256
 257
 258 struct HookId {
 259   LttvHook h;
 260   guint id;
 261   void *hook_data;
 262   gboolean free_hook_data;
 263 };
 264
 265
 266 static void push_state(LttvTracefileState *tfs, LttvInterruptType t,
 267     guint state_id)
 268 {
 269   LttvInterruptState *intr;
 270
 271   LttvProcessState *process = tfs->process;
 272
 273   guint depth = process->interrupt_stack->len;
 274
 275   g_array_set_size(process->interrupt_stack, depth + 1);
 276   intr = &g_array_index(process->interrupt_stack, LttvInterruptState, depth);
 277   intr->t = t;
 278   intr->n = state_id;
 279   intr->entry = intr->last_change = LTTV_TRACEFILE_CONTEXT(tfs)->timestamp;
 280   intr->s = process->state->s;
 281   process->state = intr;
 282 }
 283
 284
 285 static void pop_state(LttvTracefileState *tfs, LttvInterruptType t)
 286 {
 287   LttvProcessState *process = tfs->process;
 288
 289   guint depth = process->interrupt_stack->len - 1;
 290
 291   //  g_assert(process->state->t == t);
 292   if(process->state->t != t){
 293     g_warning("Different interrupt type: ignore it\n");
 294     return;
 295   }
 296   g_array_remove_index(process->interrupt_stack, depth);
 297   depth--;
 298   process->state = &g_array_index(process->interrupt_stack, LttvInterruptState,
 299       depth);
 300 }
 301
 302
 303 LttvProcessState *create_process(LttvTracefileState *tfs,
 304     LttvProcessState *parent, guint pid)
 305 {
 306   LttvProcessState *process = g_new(LttvProcessState, 1);
 307
 308   LttvInterruptState *intr;
 309
 310   LttvTraceContext *tc;
 311
 312   LttvTraceState *tcs;
 313
 314   LttvTracefileContext *tfc = LTTV_TRACEFILE_CONTEXT(tfs);
 315
 316   tcs = (LttvTraceState *)tc = tfc->t_context;
 317
 318   g_hash_table_insert(tcs->processes, GUINT_TO_POINTER(pid), process);
 319   process->pid = pid;
 320   process->birth = tfc->timestamp;
 321   process->name = LTTV_STATE_UNNAMED;
 322   process->interrupt_stack = g_array_new(FALSE, FALSE,
 323       sizeof(LttvInterruptState));
 324   g_array_set_size(process->interrupt_stack, 1);
 325   intr = process->state = &g_array_index(process->interrupt_stack,
 326       LttvInterruptState, 0);
 327   intr->t = LTTV_STATE_USER_MODE;
 328   intr->n = 0;
 329   intr->entry = tfc->timestamp;
 330   intr->last_change = tfc->timestamp;
 331   intr->s = LTTV_STATE_WAIT_FORK;
 332
 333   return process;
 334 }
 335
 336
 337 LttvProcessState *find_process(LttvTracefileState *tfs, guint pid)
 338 {
 339   LttvTraceState *ts =(LttvTraceState *)LTTV_TRACEFILE_CONTEXT(tfs)->t_context;
 340   LttvProcessState *process = g_hash_table_lookup(ts->processes,
 341       GUINT_TO_POINTER(pid));
 342   if(process == NULL) process = create_process(tfs, NULL, pid);
 343   return process;
 344 }
 345
 346
 347 void exit_process(LttvTracefileState *tfs, LttvProcessState *process)
 348 {
 349   LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context);
 350
 351   g_hash_table_remove(ts->processes, GUINT_TO_POINTER(process->pid));
 352   g_array_free(process->interrupt_stack, TRUE);
 353   g_free(process);
 354 }
 355
 356
 357 void free_process_state(gpointer key, gpointer value, gpointer user_data)
 358 {
 359   g_array_free(((LttvProcessState *)value)->interrupt_stack, TRUE);
 360   g_free(value);
 361 }
 362
 363
 364 void remove_all_processes(GHashTable *processes)
 365 {
 366   g_hash_table_foreach(processes, free_process_state, NULL);
 367 }
 368
 369
 370 gboolean syscall_entry(void *hook_data, void *call_data)
 371 {
 372   LttField *f = (LttField *)hook_data;
 373
 374   LttvTracefileState *s = (LttvTracefileState *)call_data;
 375
 376   push_state(s, LTTV_STATE_SYSCALL, ltt_event_get_unsigned(
 377       LTTV_TRACEFILE_CONTEXT(s)->e, f));
 378   return FALSE;
 379 }
 380
 381
 382 gboolean syscall_exit(void *hook_data, void *call_data)
 383 {
 384   LttvTracefileState *s = (LttvTracefileState *)call_data;
 385
 386   pop_state(s, LTTV_STATE_SYSCALL);
 387   return FALSE;
 388 }
 389
 390
 391 gboolean trap_entry(void *hook_data, void *call_data)
 392 {
 393   LttField *f = (LttField *)hook_data;
 394
 395   LttvTracefileState *s = (LttvTracefileState *)call_data;
 396
 397   push_state(s, LTTV_STATE_TRAP, ltt_event_get_unsigned(s->parent.e, f));
 398   return FALSE;
 399 }
 400
 401
 402 gboolean trap_exit(void *hook_data, void *call_data)
 403 {
 404   LttvTracefileState *s = (LttvTracefileState *)call_data;
 405
 406   pop_state(s, LTTV_STATE_TRAP);
 407   return FALSE;
 408 }
 409
 410
 411 gboolean irq_entry(void *hook_data, void *call_data)
 412 {
 413   LttField *f = (LttField *)hook_data;
 414
 415   LttvTracefileState *s = (LttvTracefileState *)call_data;
 416
 417   /* Do something with the info about being in user or system mode when int? */
 418   push_state(s, LTTV_STATE_IRQ, ltt_event_get_unsigned(s->parent.e, f));
 419   return FALSE;
 420 }
 421
 422
 423 gboolean irq_exit(void *hook_data, void *call_data)
 424 {
 425   LttvTracefileState *s = (LttvTracefileState *)call_data;
 426
 427   pop_state(s, LTTV_STATE_IRQ);
 428   return FALSE;
 429 }
 430
 431
 432 gboolean schedchange(void *hook_data, void *call_data)
 433 {
 434   struct HookData *h = (struct HookData *)hook_data;
 435
 436   LttvTracefileState *s = (LttvTracefileState *)call_data;
 437
 438   guint pid_in, pid_out, state_out;
 439
 440   pid_in = ltt_event_get_unsigned(s->parent.e, h->f1);
 441   pid_out = ltt_event_get_unsigned(s->parent.e, h->f2);
 442   state_out = ltt_event_get_unsigned(s->parent.e, h->f3);
 443   if(s->process != NULL) {
 444     if(state_out == 0) s->process->state->s = LTTV_STATE_WAIT_CPU;
 445     else if(s->process->state->s == LTTV_STATE_EXIT)
 446         exit_process(s, s->process);
 447     else s->process->state->s = LTTV_STATE_WAIT;
 448
 449     if(s->process->pid == 0)
 450       s->process->pid == pid_out;
 451   }
 452   s->process = find_process(s, pid_in);
 453   s->process->state->s = LTTV_STATE_RUN;
 454   return FALSE;
 455 }
 456
 457
 458 gboolean process_fork(void *hook_data, void *call_data)
 459 {
 460   LttField *f = (LttField *)hook_data;
 461
 462   LttvTracefileState *s = (LttvTracefileState *)call_data;
 463
 464   guint child_pid;
 465
 466   child_pid = ltt_event_get_unsigned(s->parent.e, f);
 467   create_process(s, s->process, child_pid);
 468   return FALSE;
 469 }
 470
 471
 472 gboolean process_exit(void *hook_data, void *call_data)
 473 {
 474   LttvTracefileState *s = (LttvTracefileState *)call_data;
 475
 476   if(s->process != NULL) {
 477     s->process->state->s = LTTV_STATE_EXIT;
 478   }
 479   return FALSE;
 480 }
 481
 482
 483 static LttField *
 484 find_field(LttEventType *et, const char *field)
 485 {
 486   LttType *t;
 487
 488   LttField *f;
 489
 490   guint i, nb;
 491
 492   char *name;
 493
 494   if(field == NULL) return NULL;
 495
 496   f = ltt_eventtype_field(et);
 497   t = ltt_eventtype_type(et);
 498   g_assert(ltt_type_class(t) == LTT_STRUCT);
 499   nb = ltt_type_member_number(t);
 500   for(i = 0 ; i < nb ; i++) {
 501     ltt_type_member_type(t, i, &name);
 502     if(strcmp(name, field) == 0) break;
 503   }
 504   g_assert(i < nb);
 505   return ltt_field_member(f, i);
 506 }
 507
 508
 509 static struct HookId
 510 find_hook(LttTrace *t, char *facility, char *event,
 511     char *field1, char *field2, char *field3, LttvHook h)
 512 {
 513   LttFacility *f;
 514
 515   LttEventType *et;
 516
 517   guint nb, pos, i;
 518
 519   struct HookId hook_id;
 520
 521   struct HookData hook_data, *phook_data;
 522
 523   char *name;
 524
 525   nb = ltt_trace_facility_find(t, facility, &pos);
 526   if(nb < 1) g_error("No %s facility", facility);
 527   f = ltt_trace_facility_get(t, pos);
 528   et = ltt_facility_eventtype_get_by_name(f, event);
 529   if(et == NULL) g_error("Event %s does not exist", event);
 530
 531   hook_id.id = ltt_eventtype_id(et);
 532   hook_id.h = h;
 533   hook_id.free_hook_data = FALSE;
 534   hook_data.f1 = find_field(et, field1);
 535   hook_data.f2 = find_field(et, field2);
 536   hook_data.f3 = find_field(et, field3);
 537   if(hook_data.f1 == NULL) hook_id.hook_data = NULL;
 538   else if(hook_data.f2 == NULL) hook_id.hook_data = hook_data.f1;
 539   else {
 540     phook_data = g_new(struct HookData, 1);
 541     *phook_data = hook_data;
 542     hook_id.hook_data = phook_data;
 543     hook_id.free_hook_data = TRUE;
 544   }
 545   return hook_id;
 546 }
 547
 548
 549 lttv_state_add_event_hooks(LttvTracesetState *self)
 550 {
 551   LttvTraceset *traceset = self->parent.ts;
 552
 553   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 554
 555   LttFacility *f;
 556
 557   LttEventType *et;
 558
 559   LttvTraceState *ts;
 560
 561   LttvTracefileState *tfs;
 562
 563   void *hook_data;
 564
 565   GArray *hooks;
 566
 567   struct HookId hook_id;
 568
 569   LttvAttributeValue val;
 570
 571   nb_trace = lttv_traceset_number(traceset);
 572   for(i = 0 ; i < nb_trace ; i++) {
 573     ts = (LttvTraceState *)self->parent.traces[i];
 574
 575     /* Find the eventtype id for the following events and register the
 576        associated by id hooks. */
 577
 578     hooks = g_array_new(FALSE, FALSE, sizeof(struct HookId));
 579     hook_id = find_hook(ts->parent.t, "core","syscall_entry","syscall_id",
 580                         NULL, NULL, syscall_entry);
 581     g_array_append_val(hooks, hook_id);
 582
 583     hook_id = find_hook(ts->parent.t, "core", "syscall_exit",
 584                         NULL, NULL, NULL, syscall_exit);
 585     g_array_append_val(hooks, hook_id);
 586
 587     hook_id = find_hook(ts->parent.t, "core", "trap_entry", "trap_id",
 588                         NULL, NULL, trap_entry);
 589     g_array_append_val(hooks, hook_id);
 590
 591     hook_id = find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL,
 592                         NULL, trap_exit);
 593     g_array_append_val(hooks, hook_id);
 594
 595     hook_id = find_hook(ts->parent.t, "core", "irq_entry", "irq_id",
 596                         NULL, NULL, irq_entry);
 597     g_array_append_val(hooks, hook_id);
 598
 599     hook_id = find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL,
 600                         NULL, irq_exit);
 601     g_array_append_val(hooks, hook_id);
 602
 603     hook_id = find_hook(ts->parent.t, "core", "schedchange",
 604                         "in", "out", "out_state", schedchange);
 605     g_array_append_val(hooks, hook_id);
 606
 607     hook_id = find_hook(ts->parent.t, "core", "process_fork",
 608                         "child_pid", NULL, NULL, process_fork);
 609     g_array_append_val(hooks, hook_id);
 610
 611     hook_id = find_hook(ts->parent.t, "core", "process_exit",
 612                         NULL, NULL, NULL, process_exit);
 613     g_array_append_val(hooks, hook_id);
 614
 615     /* Add these hooks to each before_event_by_id hooks list */
 616
 617     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 618     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 619     nb_tracefile = nb_control + nb_per_cpu;
 620     for(j = 0 ; j < nb_tracefile ; j++) {
 621       if(j < nb_control) {
 622         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
 623       }
 624       else {
 625         tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
 626       }
 627
 628       for(k = 0 ; k < hooks->len ; k++) {
 629         hook_id = g_array_index(hooks, struct HookId, k);
 630         lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.before_event_by_id,
 631           hook_id.id), hook_id.h, hook_id.hook_data);
 632       }
 633     }
 634     lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
 635     *(val.v_pointer) = hooks;
 636   }
 637 }
 638
 639
 640 lttv_state_remove_event_hooks(LttvTracesetState *self)
 641 {
 642   LttvTraceset *traceset = self->parent.ts;
 643
 644   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 645
 646   LttvTraceState *ts;
 647
 648   LttvTracefileState *tfs;
 649
 650   void *hook_data;
 651
 652   GArray *hooks;
 653
 654   struct HookId hook_id;
 655
 656   LttvAttributeValue val;
 657
 658   nb_trace = lttv_traceset_number(traceset);
 659   for(i = 0 ; i < nb_trace ; i++) {
 660     ts = LTTV_TRACE_STATE(self->parent.traces[i]);
 661     lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
 662     hooks = *(val.v_pointer);
 663
 664     /* Add these hooks to each before_event_by_id hooks list */
 665
 666     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 667     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 668     nb_tracefile = nb_control + nb_per_cpu;
 669     for(j = 0 ; j < nb_tracefile ; j++) {
 670       if(j < nb_control) {
 671         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
 672       }
 673       else {
 674         tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
 675       }
 676
 677       for(k = 0 ; k < hooks->len ; k++) {
 678         hook_id = g_array_index(hooks, struct HookId, k);
 679         lttv_hooks_remove_data(
 680             lttv_hooks_by_id_find(tfs->parent.before_event_by_id,
 681             hook_id.id), hook_id.h, hook_id.hook_data);
 682         if(hook_id.free_hook_data) g_free(hook_id.hook_data);
 683       }
 684       //      for(k = 0 ; k < hooks->len ; k++) {
 685       //        hook_id = g_array_index(hooks, struct HookId, k);
 686       //        if(hook_id.free_hook_data) g_free(hook_id.hook_data);
 687       //      }
 688     }
 689     g_array_free(hooks, TRUE);
 690   }
 691 }
 692
 693
 694 void lttv_state_init(int argc, char **argv)
 695 {
 696   LTTV_STATE_UNNAMED = g_quark_from_string("unnamed");
 697   LTTV_STATE_USER_MODE = g_quark_from_string("user mode");
 698   LTTV_STATE_WAIT_FORK = g_quark_from_string("wait fork");
 699   LTTV_STATE_SYSCALL = g_quark_from_string("system call");
 700   LTTV_STATE_TRAP = g_quark_from_string("trap");
 701   LTTV_STATE_IRQ = g_quark_from_string("irq");
 702   LTTV_STATE_WAIT_CPU = g_quark_from_string("wait for cpu");
 703   LTTV_STATE_EXIT = g_quark_from_string("exiting");
 704   LTTV_STATE_WAIT = g_quark_from_string("wait for I/O");
 705   LTTV_STATE_RUN = g_quark_from_string("running");
 706   LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks");
 707 }
 708
 709 void lttv_state_destroy()
 710 {
 711 }
 712
 713
 714
 715