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   if(parent) process->ppid = parent->pid;
 321   process->birth = tfc->timestamp;
 322   process->name = LTTV_STATE_UNNAMED;
 323   process->interrupt_stack = g_array_new(FALSE, FALSE,
 324       sizeof(LttvInterruptState));
 325   g_array_set_size(process->interrupt_stack, 1);
 326   intr = process->state = &g_array_index(process->interrupt_stack,
 327       LttvInterruptState, 0);
 328   intr->t = LTTV_STATE_USER_MODE;
 329   intr->n = 0;
 330   intr->entry = tfc->timestamp;
 331   intr->last_change = tfc->timestamp;
 332   intr->s = LTTV_STATE_WAIT_FORK;
 333
 334   return process;
 335 }
 336
 337
 338 LttvProcessState *find_process(LttvTracefileState *tfs, guint pid)
 339 {
 340   LttvTraceState *ts =(LttvTraceState *)LTTV_TRACEFILE_CONTEXT(tfs)->t_context;
 341   LttvProcessState *process = g_hash_table_lookup(ts->processes,
 342       GUINT_TO_POINTER(pid));
 343   if(process == NULL) process = create_process(tfs, NULL, pid);
 344   return process;
 345 }
 346
 347
 348 void exit_process(LttvTracefileState *tfs, LttvProcessState *process)
 349 {
 350   LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context);
 351
 352   g_hash_table_remove(ts->processes, GUINT_TO_POINTER(process->pid));
 353   g_array_free(process->interrupt_stack, TRUE);
 354   g_free(process);
 355 }
 356
 357
 358 void free_process_state(gpointer key, gpointer value, gpointer user_data)
 359 {
 360   g_array_free(((LttvProcessState *)value)->interrupt_stack, TRUE);
 361   g_free(value);
 362 }
 363
 364
 365 void remove_all_processes(GHashTable *processes)
 366 {
 367   g_hash_table_foreach(processes, free_process_state, NULL);
 368 }
 369
 370
 371 gboolean syscall_entry(void *hook_data, void *call_data)
 372 {
 373   LttField *f = (LttField *)hook_data;
 374
 375   LttvTracefileState *s = (LttvTracefileState *)call_data;
 376
 377   push_state(s, LTTV_STATE_SYSCALL, ltt_event_get_unsigned(
 378       LTTV_TRACEFILE_CONTEXT(s)->e, f));
 379   return FALSE;
 380 }
 381
 382
 383 gboolean syscall_exit(void *hook_data, void *call_data)
 384 {
 385   LttvTracefileState *s = (LttvTracefileState *)call_data;
 386
 387   pop_state(s, LTTV_STATE_SYSCALL);
 388   return FALSE;
 389 }
 390
 391
 392 gboolean trap_entry(void *hook_data, void *call_data)
 393 {
 394   LttField *f = (LttField *)hook_data;
 395
 396   LttvTracefileState *s = (LttvTracefileState *)call_data;
 397
 398   push_state(s, LTTV_STATE_TRAP, ltt_event_get_unsigned(s->parent.e, f));
 399   return FALSE;
 400 }
 401
 402
 403 gboolean trap_exit(void *hook_data, void *call_data)
 404 {
 405   LttvTracefileState *s = (LttvTracefileState *)call_data;
 406
 407   pop_state(s, LTTV_STATE_TRAP);
 408   return FALSE;
 409 }
 410
 411
 412 gboolean irq_entry(void *hook_data, void *call_data)
 413 {
 414   LttField *f = (LttField *)hook_data;
 415
 416   LttvTracefileState *s = (LttvTracefileState *)call_data;
 417
 418   /* Do something with the info about being in user or system mode when int? */
 419   push_state(s, LTTV_STATE_IRQ, ltt_event_get_unsigned(s->parent.e, f));
 420   return FALSE;
 421 }
 422
 423
 424 gboolean irq_exit(void *hook_data, void *call_data)
 425 {
 426   LttvTracefileState *s = (LttvTracefileState *)call_data;
 427
 428   pop_state(s, LTTV_STATE_IRQ);
 429   return FALSE;
 430 }
 431
 432
 433 gboolean schedchange(void *hook_data, void *call_data)
 434 {
 435   struct HookData *h = (struct HookData *)hook_data;
 436
 437   LttvTracefileState *s = (LttvTracefileState *)call_data;
 438
 439   guint pid_in, pid_out, state_out;
 440
 441   pid_in = ltt_event_get_unsigned(s->parent.e, h->f1);
 442   pid_out = ltt_event_get_unsigned(s->parent.e, h->f2);
 443   state_out = ltt_event_get_unsigned(s->parent.e, h->f3);
 444   if(s->process != NULL) {
 445     if(state_out == 0) s->process->state->s = LTTV_STATE_WAIT_CPU;
 446     else if(s->process->state->s == LTTV_STATE_EXIT)
 447         exit_process(s, s->process);
 448     else s->process->state->s = LTTV_STATE_WAIT;
 449
 450     if(s->process->pid == 0)
 451       s->process->pid == pid_out;
 452   }
 453   s->process = find_process(s, pid_in);
 454   s->process->state->s = LTTV_STATE_RUN;
 455   return FALSE;
 456 }
 457
 458
 459 gboolean process_fork(void *hook_data, void *call_data)
 460 {
 461   LttField *f = (LttField *)hook_data;
 462
 463   LttvTracefileState *s = (LttvTracefileState *)call_data;
 464
 465   guint child_pid;
 466
 467   child_pid = ltt_event_get_unsigned(s->parent.e, f);
 468   create_process(s, s->process, child_pid);
 469   return FALSE;
 470 }
 471
 472
 473 gboolean process_exit(void *hook_data, void *call_data)
 474 {
 475   LttvTracefileState *s = (LttvTracefileState *)call_data;
 476
 477   if(s->process != NULL) {
 478     s->process->state->s = LTTV_STATE_EXIT;
 479   }
 480   return FALSE;
 481 }
 482
 483
 484 static LttField *
 485 find_field(LttEventType *et, const char *field)
 486 {
 487   LttType *t;
 488
 489   LttField *f;
 490
 491   guint i, nb;
 492
 493   char *name;
 494
 495   if(field == NULL) return NULL;
 496
 497   f = ltt_eventtype_field(et);
 498   t = ltt_eventtype_type(et);
 499   g_assert(ltt_type_class(t) == LTT_STRUCT);
 500   nb = ltt_type_member_number(t);
 501   for(i = 0 ; i < nb ; i++) {
 502     ltt_type_member_type(t, i, &name);
 503     if(strcmp(name, field) == 0) break;
 504   }
 505   g_assert(i < nb);
 506   return ltt_field_member(f, i);
 507 }
 508
 509
 510 static struct HookId
 511 find_hook(LttTrace *t, char *facility, char *event,
 512     char *field1, char *field2, char *field3, LttvHook h)
 513 {
 514   LttFacility *f;
 515
 516   LttEventType *et;
 517
 518   guint nb, pos, i;
 519
 520   struct HookId hook_id;
 521
 522   struct HookData hook_data, *phook_data;
 523
 524   char *name;
 525
 526   nb = ltt_trace_facility_find(t, facility, &pos);
 527   if(nb < 1) g_error("No %s facility", facility);
 528   f = ltt_trace_facility_get(t, pos);
 529   et = ltt_facility_eventtype_get_by_name(f, event);
 530   if(et == NULL) g_error("Event %s does not exist", event);
 531
 532   hook_id.id = ltt_eventtype_id(et);
 533   hook_id.h = h;
 534   hook_id.free_hook_data = FALSE;
 535   hook_data.f1 = find_field(et, field1);
 536   hook_data.f2 = find_field(et, field2);
 537   hook_data.f3 = find_field(et, field3);
 538   if(hook_data.f1 == NULL) hook_id.hook_data = NULL;
 539   else if(hook_data.f2 == NULL) hook_id.hook_data = hook_data.f1;
 540   else {
 541     phook_data = g_new(struct HookData, 1);
 542     *phook_data = hook_data;
 543     hook_id.hook_data = phook_data;
 544     hook_id.free_hook_data = TRUE;
 545   }
 546   return hook_id;
 547 }
 548
 549
 550 lttv_state_add_event_hooks(LttvTracesetState *self)
 551 {
 552   LttvTraceset *traceset = self->parent.ts;
 553
 554   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 555
 556   LttFacility *f;
 557
 558   LttEventType *et;
 559
 560   LttvTraceState *ts;
 561
 562   LttvTracefileState *tfs;
 563
 564   void *hook_data;
 565
 566   GArray *hooks;
 567
 568   struct HookId hook_id;
 569
 570   LttvAttributeValue val;
 571
 572   nb_trace = lttv_traceset_number(traceset);
 573   for(i = 0 ; i < nb_trace ; i++) {
 574     ts = (LttvTraceState *)self->parent.traces[i];
 575
 576     /* Find the eventtype id for the following events and register the
 577        associated by id hooks. */
 578
 579     hooks = g_array_new(FALSE, FALSE, sizeof(struct HookId));
 580     hook_id = find_hook(ts->parent.t, "core","syscall_entry","syscall_id",
 581                         NULL, NULL, syscall_entry);
 582     g_array_append_val(hooks, hook_id);
 583
 584     hook_id = find_hook(ts->parent.t, "core", "syscall_exit",
 585                         NULL, NULL, NULL, syscall_exit);
 586     g_array_append_val(hooks, hook_id);
 587
 588     hook_id = find_hook(ts->parent.t, "core", "trap_entry", "trap_id",
 589                         NULL, NULL, trap_entry);
 590     g_array_append_val(hooks, hook_id);
 591
 592     hook_id = find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL,
 593                         NULL, trap_exit);
 594     g_array_append_val(hooks, hook_id);
 595
 596     hook_id = find_hook(ts->parent.t, "core", "irq_entry", "irq_id",
 597                         NULL, NULL, irq_entry);
 598     g_array_append_val(hooks, hook_id);
 599
 600     hook_id = find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL,
 601                         NULL, irq_exit);
 602     g_array_append_val(hooks, hook_id);
 603
 604     hook_id = find_hook(ts->parent.t, "core", "schedchange",
 605                         "in", "out", "out_state", schedchange);
 606     g_array_append_val(hooks, hook_id);
 607
 608     hook_id = find_hook(ts->parent.t, "core", "process_fork",
 609                         "child_pid", NULL, NULL, process_fork);
 610     g_array_append_val(hooks, hook_id);
 611
 612     hook_id = find_hook(ts->parent.t, "core", "process_exit",
 613                         NULL, NULL, NULL, process_exit);
 614     g_array_append_val(hooks, hook_id);
 615
 616     /* Add these hooks to each before_event_by_id hooks list */
 617
 618     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 619     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 620     nb_tracefile = nb_control + nb_per_cpu;
 621     for(j = 0 ; j < nb_tracefile ; j++) {
 622       if(j < nb_control) {
 623         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
 624       }
 625       else {
 626         tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
 627       }
 628
 629       for(k = 0 ; k < hooks->len ; k++) {
 630         hook_id = g_array_index(hooks, struct HookId, k);
 631         lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.before_event_by_id,
 632           hook_id.id), hook_id.h, hook_id.hook_data);
 633       }
 634     }
 635     lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
 636     *(val.v_pointer) = hooks;
 637   }
 638 }
 639
 640
 641 lttv_state_remove_event_hooks(LttvTracesetState *self)
 642 {
 643   LttvTraceset *traceset = self->parent.ts;
 644
 645   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 646
 647   LttvTraceState *ts;
 648
 649   LttvTracefileState *tfs;
 650
 651   void *hook_data;
 652
 653   GArray *hooks;
 654
 655   struct HookId hook_id;
 656
 657   LttvAttributeValue val;
 658
 659   nb_trace = lttv_traceset_number(traceset);
 660   for(i = 0 ; i < nb_trace ; i++) {
 661     ts = LTTV_TRACE_STATE(self->parent.traces[i]);
 662     lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
 663     hooks = *(val.v_pointer);
 664
 665     /* Add these hooks to each before_event_by_id hooks list */
 666
 667     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 668     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 669     nb_tracefile = nb_control + nb_per_cpu;
 670     for(j = 0 ; j < nb_tracefile ; j++) {
 671       if(j < nb_control) {
 672         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
 673       }
 674       else {
 675         tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
 676       }
 677
 678       for(k = 0 ; k < hooks->len ; k++) {
 679         hook_id = g_array_index(hooks, struct HookId, k);
 680         lttv_hooks_remove_data(
 681             lttv_hooks_by_id_find(tfs->parent.before_event_by_id,
 682             hook_id.id), hook_id.h, hook_id.hook_data);
 683         if(hook_id.free_hook_data) g_free(hook_id.hook_data);
 684       }
 685       //      for(k = 0 ; k < hooks->len ; k++) {
 686       //        hook_id = g_array_index(hooks, struct HookId, k);
 687       //        if(hook_id.free_hook_data) g_free(hook_id.hook_data);
 688       //      }
 689     }
 690     g_array_free(hooks, TRUE);
 691   }
 692 }
 693
 694
 695 void lttv_state_init(int argc, char **argv)
 696 {
 697   LTTV_STATE_UNNAMED = g_quark_from_string("unnamed");
 698   LTTV_STATE_USER_MODE = g_quark_from_string("user mode");
 699   LTTV_STATE_WAIT_FORK = g_quark_from_string("wait fork");
 700   LTTV_STATE_SYSCALL = g_quark_from_string("system call");
 701   LTTV_STATE_TRAP = g_quark_from_string("trap");
 702   LTTV_STATE_IRQ = g_quark_from_string("irq");
 703   LTTV_STATE_WAIT_CPU = g_quark_from_string("wait for cpu");
 704   LTTV_STATE_EXIT = g_quark_from_string("exiting");
 705   LTTV_STATE_WAIT = g_quark_from_string("wait for I/O");
 706   LTTV_STATE_RUN = g_quark_from_string("running");
 707   LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks");
 708 }
 709
 710 void lttv_state_destroy()
 711 {
 712 }
 713
 714
 715
 716