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 static LttvProcessState *create_process(LttvTracefileState *tfs,
  62                                  LttvProcessState *parent, guint pid);
  63
  64 static LttvProcessState *create_process_from_trace(LttvTraceState *ts,
  65                                  LttvProcessState *parent, guint pid);
  66
  67 void lttv_state_save(LttvTraceState *self, LttvAttribute *container)
  68 {
  69   LTTV_TRACE_STATE_GET_CLASS(self)->state_save(self, container);
  70 }
  71
  72
  73 void lttv_state_restore(LttvTraceState *self, LttvAttribute *container)
  74 {
  75   LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container);
  76 }
  77
  78
  79 void lttv_state_saved_state_free(LttvTraceState *self,
  80     LttvAttribute *container)
  81 {
  82   LTTV_TRACE_STATE_GET_CLASS(self)->state_restore(self, container);
  83 }
  84
  85
  86 static void
  87 restore_init_state(LttvTraceState *self)
  88 {
  89   guint i, nb_control, nb_per_cpu, nb_tracefile;
  90
  91   LttvTracefileState *tfcs;
  92
  93   LttTime null_time = {0,0};
  94
  95   if(self->processes != NULL) lttv_state_free_process_table(self->processes);
  96   self->processes = g_hash_table_new(g_direct_hash, g_direct_equal);
  97   self->nb_event = 0;
  98
  99   nb_control = ltt_trace_control_tracefile_number(self->parent.t);
 100   nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
 101   nb_tracefile = nb_control + nb_per_cpu;
 102   for(i = 0 ; i < nb_tracefile ; i++) {
 103     if(i < nb_control) {
 104       tfcs = LTTV_TRACEFILE_STATE(self->parent.control_tracefiles[i]);
 105     }
 106     else {
 107       tfcs = LTTV_TRACEFILE_STATE(self->parent.per_cpu_tracefiles[i - nb_control]);
 108     }
 109
 110     tfcs->parent.timestamp = null_time;
 111     tfcs->saved_position = 0;
 112     tfcs->process = create_process(tfcs, NULL,0);
 113   }
 114 }
 115
 116
 117 static void
 118 init(LttvTracesetState *self, LttvTraceset *ts)
 119 {
 120   guint i, j, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 121
 122   LttvTraceContext *tc;
 123
 124   LttvTraceState *tcs;
 125
 126   LttvTracefileState *tfcs;
 127
 128   LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
 129       init((LttvTracesetContext *)self, ts);
 130
 131   nb_trace = lttv_traceset_number(ts);
 132   for(i = 0 ; i < nb_trace ; i++) {
 133     tc = self->parent.traces[i];
 134     tcs = (LttvTraceState *)tc;
 135     tcs->save_interval = 100000;
 136     tcs->recompute_state_in_seek = TRUE;
 137     tcs->saved_state_ready = FALSE;
 138     fill_name_tables(tcs);
 139
 140     nb_control = ltt_trace_control_tracefile_number(tc->t);
 141     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(tc->t);
 142     nb_tracefile = nb_control + nb_per_cpu;
 143     for(j = 0 ; j < nb_tracefile ; j++) {
 144       if(j < nb_control) {
 145         tfcs = LTTV_TRACEFILE_STATE(tc->control_tracefiles[j]);
 146       }
 147       else {
 148         tfcs = LTTV_TRACEFILE_STATE(tc->per_cpu_tracefiles[j - nb_control]);
 149       }
 150       tfcs->cpu_name= g_quark_from_string(ltt_tracefile_name(tfcs->parent.tf));
 151     }
 152     tcs->processes = NULL;
 153     restore_init_state(tcs);
 154   }
 155 }
 156
 157
 158 static void
 159 fini(LttvTracesetState *self)
 160 {
 161   guint i, j, nb_trace, nb_tracefile;
 162
 163   LttvTraceState *tcs;
 164
 165   LttvTracefileState *tfcs;
 166
 167   nb_trace = lttv_traceset_number(LTTV_TRACESET_CONTEXT(self)->ts);
 168   for(i = 0 ; i < nb_trace ; i++) {
 169     tcs = (LttvTraceState *)(LTTV_TRACESET_CONTEXT(self)->traces[i]);
 170     lttv_state_free_process_table(tcs->processes);
 171     tcs->processes = NULL;
 172     free_name_tables(tcs);
 173   }
 174   LTTV_TRACESET_CONTEXT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
 175       fini((LttvTracesetContext *)self);
 176 }
 177
 178
 179 static LttvTracesetContext *
 180 new_traceset_context(LttvTracesetContext *self)
 181 {
 182   return LTTV_TRACESET_CONTEXT(g_object_new(LTTV_TRACESET_STATE_TYPE, NULL));
 183 }
 184
 185
 186 static LttvTraceContext *
 187 new_trace_context(LttvTracesetContext *self)
 188 {
 189   return LTTV_TRACE_CONTEXT(g_object_new(LTTV_TRACE_STATE_TYPE, NULL));
 190 }
 191
 192
 193 static LttvTracefileContext *
 194 new_tracefile_context(LttvTracesetContext *self)
 195 {
 196   return LTTV_TRACEFILE_CONTEXT(g_object_new(LTTV_TRACEFILE_STATE_TYPE, NULL));
 197 }
 198
 199
 200 static void copy_process_state(gpointer key, gpointer value,gpointer user_data)
 201 {
 202   LttvProcessState *process, *new_process;
 203
 204   GHashTable *new_processes = (GHashTable *)user_data;
 205
 206   guint i;
 207
 208   process = (LttvProcessState *)value;
 209   new_process = g_new(LttvProcessState, 1);
 210   *new_process = *process;
 211   new_process->execution_stack = g_array_new(FALSE, FALSE,
 212       sizeof(LttvExecutionState));
 213   g_array_set_size(new_process->execution_stack,process->execution_stack->len);
 214   for(i = 0 ; i < process->execution_stack->len; i++) {
 215     g_array_index(new_process->execution_stack, LttvExecutionState, i) =
 216         g_array_index(process->execution_stack, LttvExecutionState, i);
 217   }
 218   new_process->state = &g_array_index(new_process->execution_stack,
 219       LttvExecutionState, new_process->execution_stack->len - 1);
 220   g_hash_table_insert(new_processes, GUINT_TO_POINTER(new_process->pid),
 221       new_process);
 222 }
 223
 224
 225 static GHashTable *lttv_state_copy_process_table(GHashTable *processes)
 226 {
 227   GHashTable *new_processes = g_hash_table_new(g_direct_hash, g_direct_equal);
 228
 229   g_hash_table_foreach(processes, copy_process_state, new_processes);
 230   return new_processes;
 231 }
 232
 233
 234 /* The saved state for each trace contains a member "processes", which
 235    stores a copy of the process table, and a member "tracefiles" with
 236    one entry per tracefile. Each tracefile has a "process" member pointing
 237    to the current process and a "position" member storing the tracefile
 238    position (needed to seek to the current "next" event. */
 239
 240 static void state_save(LttvTraceState *self, LttvAttribute *container)
 241 {
 242   guint i, nb_control, nb_per_cpu, nb_tracefile;
 243
 244   LttvTracefileState *tfcs;
 245
 246   LttvAttribute *tracefiles_tree, *tracefile_tree;
 247
 248   LttvAttributeType type;
 249
 250   LttvAttributeValue value;
 251
 252   LttvAttributeName name;
 253
 254   LttEventPosition *ep;
 255
 256   tracefiles_tree = lttv_attribute_find_subdir(container,
 257       LTTV_STATE_TRACEFILES);
 258
 259   value = lttv_attribute_add(container, LTTV_STATE_PROCESSES,
 260       LTTV_POINTER);
 261   *(value.v_pointer) = lttv_state_copy_process_table(self->processes);
 262
 263   nb_control = ltt_trace_control_tracefile_number(self->parent.t);
 264   nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
 265   nb_tracefile = nb_control + nb_per_cpu;
 266
 267   for(i = 0 ; i < nb_tracefile ; i++) {
 268     if(i < nb_control)
 269         tfcs = (LttvTracefileState *)self->parent.control_tracefiles[i];
 270     else tfcs = (LttvTracefileState *)
 271         self->parent.per_cpu_tracefiles[i - nb_control];
 272
 273     tracefile_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
 274     value = lttv_attribute_add(tracefiles_tree, i,
 275         LTTV_GOBJECT);
 276     *(value.v_gobject) = (GObject *)tracefile_tree;
 277     value = lttv_attribute_add(tracefile_tree, LTTV_STATE_PROCESS,
 278         LTTV_UINT);
 279     *(value.v_uint) = tfcs->process->pid;
 280     value = lttv_attribute_add(tracefile_tree, LTTV_STATE_EVENT,
 281         LTTV_POINTER);
 282     if(tfcs->parent.e == NULL) *(value.v_pointer) = NULL;
 283     else {
 284       ep = ltt_event_position_new();
 285       ltt_event_position(tfcs->parent.e, ep);
 286       *(value.v_pointer) = ep;
 287     }
 288   }
 289 }
 290
 291
 292 static void state_restore(LttvTraceState *self, LttvAttribute *container)
 293 {
 294   guint i, nb_control, nb_per_cpu, nb_tracefile;
 295
 296   LttvTracefileState *tfcs;
 297
 298   LttvAttribute *tracefiles_tree, *tracefile_tree;
 299
 300   LttvAttributeType type;
 301
 302   LttvAttributeValue value;
 303
 304   LttvAttributeName name;
 305
 306   LttEventPosition *ep;
 307
 308   tracefiles_tree = lttv_attribute_find_subdir(container,
 309       LTTV_STATE_TRACEFILES);
 310
 311   type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
 312       &value);
 313   g_assert(type == LTTV_POINTER);
 314   lttv_state_free_process_table(self->processes);
 315   self->processes = lttv_state_copy_process_table(*(value.v_pointer));
 316
 317   nb_control = ltt_trace_control_tracefile_number(self->parent.t);
 318   nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
 319   nb_tracefile = nb_control + nb_per_cpu;
 320
 321   for(i = 0 ; i < nb_tracefile ; i++) {
 322     if(i < nb_control) tfcs = (LttvTracefileState *)
 323         self->parent.control_tracefiles[i];
 324     else tfcs = (LttvTracefileState *)
 325         self->parent.per_cpu_tracefiles[i - nb_control];
 326
 327     type = lttv_attribute_get(tracefiles_tree, i, &name, &value);
 328     g_assert(type == LTTV_GOBJECT);
 329     tracefile_tree = *((LttvAttribute **)(value.v_gobject));
 330
 331     type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_PROCESS,
 332         &value);
 333     g_assert(type == LTTV_UINT);
 334     tfcs->process = lttv_state_find_process(tfcs, *(value.v_uint));
 335     type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT,
 336         &value);
 337     g_assert(type == LTTV_POINTER);
 338     if(*(value.v_pointer) == NULL) tfcs->parent.e = NULL;
 339     else {
 340       ep = *(value.v_pointer);
 341       ltt_tracefile_seek_position(tfcs->parent.tf, ep);
 342       tfcs->parent.e = ltt_tracefile_read(tfcs->parent.tf);
 343       tfcs->parent.timestamp = ltt_event_time(tfcs->parent.e);
 344     }
 345   }
 346 }
 347
 348
 349 static void state_saved_free(LttvTraceState *self, LttvAttribute *container)
 350 {
 351   guint i, nb_control, nb_per_cpu, nb_tracefile;
 352
 353   LttvTracefileState *tfcs;
 354
 355   LttvAttribute *tracefiles_tree, *tracefile_tree;
 356
 357   LttvAttributeType type;
 358
 359   LttvAttributeValue value;
 360
 361   LttvAttributeName name;
 362
 363   LttEventPosition *ep;
 364
 365   tracefiles_tree = lttv_attribute_find_subdir(container,
 366       LTTV_STATE_TRACEFILES);
 367   lttv_attribute_remove_by_name(container, LTTV_STATE_TRACEFILES);
 368
 369   type = lttv_attribute_get_by_name(container, LTTV_STATE_PROCESSES,
 370       &value);
 371   g_assert(type == LTTV_POINTER);
 372   lttv_state_free_process_table(*(value.v_pointer));
 373   *(value.v_pointer) = NULL;
 374   lttv_attribute_remove_by_name(container, LTTV_STATE_PROCESSES);
 375
 376   nb_control = ltt_trace_control_tracefile_number(self->parent.t);
 377   nb_per_cpu = ltt_trace_per_cpu_tracefile_number(self->parent.t);
 378   nb_tracefile = nb_control + nb_per_cpu;
 379
 380   for(i = 0 ; i < nb_tracefile ; i++) {
 381     if(i < nb_control) tfcs = (LttvTracefileState *)
 382         self->parent.control_tracefiles[i];
 383     else tfcs = (LttvTracefileState *)
 384         self->parent.per_cpu_tracefiles[i - nb_control];
 385
 386     type = lttv_attribute_get(tracefiles_tree, i, &name, &value);
 387     g_assert(type == LTTV_GOBJECT);
 388     tracefile_tree = *((LttvAttribute **)(value.v_gobject));
 389
 390     type = lttv_attribute_get_by_name(tracefile_tree, LTTV_STATE_EVENT,
 391         &value);
 392     g_assert(type == LTTV_POINTER);
 393     if(*(value.v_pointer) != NULL) g_free(*(value.v_pointer));
 394   }
 395   lttv_attribute_recursive_free(tracefiles_tree);
 396 }
 397
 398
 399 static void
 400 fill_name_tables(LttvTraceState *tcs)
 401 {
 402   int i, nb;
 403
 404   char *f_name, *e_name;
 405
 406   LttvTraceHook h;
 407
 408   LttEventType *et;
 409
 410   LttType *t;
 411
 412   GString *fe_name = g_string_new("");
 413
 414   nb = ltt_trace_eventtype_number(tcs->parent.t);
 415   tcs->eventtype_names = g_new(GQuark, nb);
 416   for(i = 0 ; i < nb ; i++) {
 417     et = ltt_trace_eventtype_get(tcs->parent.t, i);
 418     e_name = ltt_eventtype_name(et);
 419     f_name = ltt_facility_name(ltt_eventtype_facility(et));
 420     g_string_printf(fe_name, "%s.%s", f_name, e_name);
 421     tcs->eventtype_names[i] = g_quark_from_string(fe_name->str);
 422   }
 423
 424   lttv_trace_find_hook(tcs->parent.t, "core", "syscall_entry",
 425       "syscall_id", NULL, NULL, NULL, &h);
 426   t = ltt_field_type(h.f1);
 427   nb = ltt_type_element_number(t);
 428
 429   /* CHECK syscalls should be an emun but currently are not!
 430   tcs->syscall_names = g_new(GQuark, nb);
 431
 432   for(i = 0 ; i < nb ; i++) {
 433     tcs->syscall_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
 434   }
 435   */
 436
 437   tcs->syscall_names = g_new(GQuark, 256);
 438   for(i = 0 ; i < 256 ; i++) {
 439     g_string_printf(fe_name, "syscall %d", i);
 440     tcs->syscall_names[i] = g_quark_from_string(fe_name->str);
 441   }
 442
 443   lttv_trace_find_hook(tcs->parent.t, "core", "trap_entry",
 444       "trap_id", NULL, NULL, NULL, &h);
 445   t = ltt_field_type(h.f1);
 446   nb = ltt_type_element_number(t);
 447
 448   /*
 449   tcs->trap_names = g_new(GQuark, nb);
 450   for(i = 0 ; i < nb ; i++) {
 451     tcs->trap_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
 452   }
 453   */
 454
 455   tcs->trap_names = g_new(GQuark, 256);
 456   for(i = 0 ; i < 256 ; i++) {
 457     g_string_printf(fe_name, "trap %d", i);
 458     tcs->trap_names[i] = g_quark_from_string(fe_name->str);
 459   }
 460
 461   lttv_trace_find_hook(tcs->parent.t, "core", "irq_entry",
 462       "irq_id", NULL, NULL, NULL, &h);
 463   t = ltt_field_type(h.f1);
 464   nb = ltt_type_element_number(t);
 465
 466   /*
 467   tcs->irq_names = g_new(GQuark, nb);
 468   for(i = 0 ; i < nb ; i++) {
 469     tcs->irq_names[i] = g_quark_from_string(ltt_enum_string_get(t, i));
 470   }
 471   */
 472
 473   tcs->irq_names = g_new(GQuark, 256);
 474   for(i = 0 ; i < 256 ; i++) {
 475     g_string_printf(fe_name, "irq %d", i);
 476     tcs->irq_names[i] = g_quark_from_string(fe_name->str);
 477   }
 478
 479   g_string_free(fe_name, TRUE);
 480 }
 481
 482
 483 static void
 484 free_name_tables(LttvTraceState *tcs)
 485 {
 486   g_free(tcs->eventtype_names);
 487   g_free(tcs->syscall_names);
 488   g_free(tcs->trap_names);
 489   g_free(tcs->irq_names);
 490 }
 491
 492
 493 static void push_state(LttvTracefileState *tfs, LttvExecutionMode t,
 494     guint state_id)
 495 {
 496   LttvExecutionState *es;
 497
 498   LttvProcessState *process = tfs->process;
 499
 500   guint depth = process->execution_stack->len;
 501
 502   g_array_set_size(process->execution_stack, depth + 1);
 503   es = &g_array_index(process->execution_stack, LttvExecutionState, depth);
 504   es->t = t;
 505   es->n = state_id;
 506   es->entry = es->change = tfs->parent.timestamp;
 507   es->s = process->state->s;
 508   process->state = es;
 509 }
 510
 511
 512 static void pop_state(LttvTracefileState *tfs, LttvExecutionMode t)
 513 {
 514   LttvProcessState *process = tfs->process;
 515
 516   guint depth = process->execution_stack->len - 1;
 517
 518   if(process->state->t != t){
 519     g_warning("Different execution mode type (%d.%09d): ignore it\n",
 520         tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
 521     g_warning("process state has %s when pop_int is %s\n",
 522                     g_quark_to_string(process->state->t),
 523                     g_quark_to_string(t));
 524     g_warning("{ %u, %u, %s, %s }\n",
 525                     process->pid,
 526                     process->ppid,
 527                     g_quark_to_string(process->name),
 528                     g_quark_to_string(process->state->s));
 529     return;
 530   }
 531
 532   if(depth == 0){
 533     g_warning("Trying to pop last state on stack (%d.%09d): ignore it\n",
 534         tfs->parent.timestamp.tv_sec, tfs->parent.timestamp.tv_nsec);
 535     return;
 536   }
 537
 538   g_array_remove_index(process->execution_stack, depth);
 539   depth--;
 540   process->state = &g_array_index(process->execution_stack, LttvExecutionState,
 541       depth);
 542   process->state->change = tfs->parent.timestamp;
 543 }
 544
 545
 546 static LttvProcessState *create_process(LttvTracefileState *tfs,
 547     LttvProcessState *parent, guint pid)
 548 {
 549   LttvProcessState *process = g_new(LttvProcessState, 1);
 550
 551   LttvExecutionState *es;
 552
 553   LttvTraceContext *tc;
 554
 555   LttvTraceState *tcs;
 556
 557   char buffer[128];
 558
 559   tcs = (LttvTraceState *)tc = tfs->parent.t_context;
 560
 561   g_hash_table_insert(tcs->processes, GUINT_TO_POINTER(pid), process);
 562   process->pid = pid;
 563
 564   if(parent) {
 565     process->ppid = parent->pid;
 566     process->name = parent->name;
 567   }
 568   else {
 569     process->ppid = 0;
 570     process->name = LTTV_STATE_UNNAMED;
 571   }
 572
 573   process->creation_time = tfs->parent.timestamp;
 574   sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec,
 575           process->creation_time.tv_nsec);
 576   process->pid_time = g_quark_from_string(buffer);
 577   process->execution_stack = g_array_new(FALSE, FALSE,
 578       sizeof(LttvExecutionState));
 579   g_array_set_size(process->execution_stack, 1);
 580   es = process->state = &g_array_index(process->execution_stack,
 581       LttvExecutionState, 0);
 582   es->t = LTTV_STATE_USER_MODE;
 583   es->n = LTTV_STATE_SUBMODE_NONE;
 584   es->entry = tfs->parent.timestamp;
 585   es->change = tfs->parent.timestamp;
 586   es->s = LTTV_STATE_WAIT_FORK;
 587
 588   return process;
 589 }
 590
 591 static LttvProcessState *create_process_from_trace(LttvTraceState *tcs,
 592     LttvProcessState *parent, guint pid)
 593 {
 594   LttvProcessState *process = g_new(LttvProcessState, 1);
 595
 596   LttvExecutionState *es;
 597
 598   LttvTraceContext *tc = (LttvTraceContext *)tcs;
 599
 600   char buffer[128];
 601
 602   g_hash_table_insert(tcs->processes, GUINT_TO_POINTER(pid), process);
 603   process->pid = pid;
 604
 605   if(parent) {
 606     process->ppid = parent->pid;
 607     process->name = parent->name;
 608   }
 609   else {
 610     process->ppid = 0;
 611     process->name = LTTV_STATE_UNNAMED;
 612   }
 613
 614   //FIXME timestamp should come from trace
 615   process->creation_time.tv_sec = 0;
 616   process->creation_time.tv_nsec = 0;
 617   sprintf(buffer,"%d-%lu.%lu",pid, process->creation_time.tv_sec,
 618           process->creation_time.tv_nsec);
 619   process->pid_time = g_quark_from_string(buffer);
 620   process->execution_stack = g_array_new(FALSE, FALSE,
 621       sizeof(LttvExecutionState));
 622   g_array_set_size(process->execution_stack, 1);
 623   es = process->state = &g_array_index(process->execution_stack,
 624       LttvExecutionState, 0);
 625   es->t = LTTV_STATE_USER_MODE;
 626   es->n = LTTV_STATE_SUBMODE_NONE;
 627   //FIXME es->entry = tfs->parent.timestamp;
 628   es->entry.tv_sec = 0;
 629   es->entry.tv_nsec = 0;
 630   //FIXME es->change = tfs->parent.timestamp;
 631   es->change.tv_sec = 0;
 632   es->change.tv_nsec = 0;
 633   es->s = LTTV_STATE_WAIT_FORK;
 634
 635   return process;
 636 }
 637
 638
 639
 640 LttvProcessState *lttv_state_find_process(LttvTracefileState *tfs,
 641     guint pid)
 642 {
 643   LttvTraceState *ts =(LttvTraceState *)LTTV_TRACEFILE_CONTEXT(tfs)->t_context;
 644   LttvProcessState *process = g_hash_table_lookup(ts->processes,
 645       GUINT_TO_POINTER(pid));
 646   if(process == NULL) process = create_process(tfs, NULL, pid);
 647   return process;
 648 }
 649
 650 LttvProcessState *lttv_state_find_process_from_trace(LttvTraceState *ts,
 651     guint pid)
 652 {
 653   LttvProcessState *process = g_hash_table_lookup(ts->processes,
 654       GUINT_TO_POINTER(pid));
 655
 656   if(process == NULL) process = create_process_from_trace(ts, NULL, pid);
 657   return process;
 658 }
 659
 660
 661
 662 static void exit_process(LttvTracefileState *tfs, LttvProcessState *process)
 663 {
 664   LttvTraceState *ts = LTTV_TRACE_STATE(tfs->parent.t_context);
 665
 666   g_hash_table_remove(ts->processes, GUINT_TO_POINTER(process->pid));
 667   g_array_free(process->execution_stack, TRUE);
 668   g_free(process);
 669 }
 670
 671
 672 static void free_process_state(gpointer key, gpointer value,gpointer user_data)
 673 {
 674   g_array_free(((LttvProcessState *)value)->execution_stack, TRUE);
 675   g_free(value);
 676 }
 677
 678
 679 static void lttv_state_free_process_table(GHashTable *processes)
 680 {
 681   g_hash_table_foreach(processes, free_process_state, NULL);
 682   g_hash_table_destroy(processes);
 683 }
 684
 685
 686 static gboolean syscall_entry(void *hook_data, void *call_data)
 687 {
 688   LttField *f = ((LttvTraceHook *)hook_data)->f1;
 689
 690   LttvTracefileState *s = (LttvTracefileState *)call_data;
 691
 692   LttvExecutionSubmode submode;
 693
 694   submode = ((LttvTraceState *)(s->parent.t_context))->syscall_names[
 695       ltt_event_get_unsigned(s->parent.e, f)];
 696   push_state(s, LTTV_STATE_SYSCALL, submode);
 697   return FALSE;
 698 }
 699
 700
 701 static gboolean syscall_exit(void *hook_data, void *call_data)
 702 {
 703   LttvTracefileState *s = (LttvTracefileState *)call_data;
 704
 705   pop_state(s, LTTV_STATE_SYSCALL);
 706   return FALSE;
 707 }
 708
 709
 710 static gboolean trap_entry(void *hook_data, void *call_data)
 711 {
 712   LttField *f = ((LttvTraceHook *)hook_data)->f1;
 713
 714   LttvTracefileState *s = (LttvTracefileState *)call_data;
 715
 716   LttvExecutionSubmode submode;
 717
 718   submode = ((LttvTraceState *)(s->parent.t_context))->trap_names[
 719       ltt_event_get_unsigned(s->parent.e, f)];
 720   push_state(s, LTTV_STATE_TRAP, submode);
 721   return FALSE;
 722 }
 723
 724
 725 static gboolean trap_exit(void *hook_data, void *call_data)
 726 {
 727   LttvTracefileState *s = (LttvTracefileState *)call_data;
 728
 729   pop_state(s, LTTV_STATE_TRAP);
 730   return FALSE;
 731 }
 732
 733
 734 static gboolean irq_entry(void *hook_data, void *call_data)
 735 {
 736   LttField *f = ((LttvTraceHook *)hook_data)->f1;
 737
 738   LttvTracefileState *s = (LttvTracefileState *)call_data;
 739
 740   LttvExecutionSubmode submode;
 741
 742   submode = ((LttvTraceState *)(s->parent.t_context))->irq_names[
 743       ltt_event_get_unsigned(s->parent.e, f)];
 744
 745   /* Do something with the info about being in user or system mode when int? */
 746   push_state(s, LTTV_STATE_IRQ, submode);
 747   return FALSE;
 748 }
 749
 750
 751 static gboolean irq_exit(void *hook_data, void *call_data)
 752 {
 753   LttvTracefileState *s = (LttvTracefileState *)call_data;
 754
 755   pop_state(s, LTTV_STATE_IRQ);
 756   return FALSE;
 757 }
 758
 759
 760 static gboolean schedchange(void *hook_data, void *call_data)
 761 {
 762   LttvTraceHook *h = (LttvTraceHook *)hook_data;
 763
 764   LttvTracefileState *s = (LttvTracefileState *)call_data;
 765
 766   guint pid_in, pid_out, state_out;
 767
 768   pid_in = ltt_event_get_unsigned(s->parent.e, h->f1);
 769   pid_out = ltt_event_get_unsigned(s->parent.e, h->f2);
 770   state_out = ltt_event_get_unsigned(s->parent.e, h->f3);
 771
 772   if(s->process != NULL) {
 773
 774     if(state_out == 0) s->process->state->s = LTTV_STATE_WAIT_CPU;
 775     else if(s->process->state->s == LTTV_STATE_EXIT)
 776         exit_process(s, s->process);
 777     else s->process->state->s = LTTV_STATE_WAIT;
 778
 779     if(s->process->pid == 0)
 780       s->process->pid = pid_out;
 781
 782     s->process->state->change = s->parent.timestamp;
 783   }
 784   s->process = lttv_state_find_process(s, pid_in);
 785   s->process->state->s = LTTV_STATE_RUN;
 786   s->process->state->change = s->parent.timestamp;
 787   return FALSE;
 788 }
 789
 790
 791 static gboolean process_fork(void *hook_data, void *call_data)
 792 {
 793   LttField *f = ((LttvTraceHook *)hook_data)->f1;
 794
 795   LttvTracefileState *s = (LttvTracefileState *)call_data;
 796
 797   guint child_pid;
 798
 799   child_pid = ltt_event_get_unsigned(s->parent.e, f);
 800   create_process(s, s->process, child_pid);
 801   return FALSE;
 802 }
 803
 804
 805 static gboolean process_exit(void *hook_data, void *call_data)
 806 {
 807   LttvTracefileState *s = (LttvTracefileState *)call_data;
 808
 809   if(s->process != NULL) {
 810     s->process->state->s = LTTV_STATE_EXIT;
 811   }
 812   return FALSE;
 813 }
 814
 815
 816 void lttv_state_add_event_hooks(LttvTracesetState *self)
 817 {
 818   LttvTraceset *traceset = self->parent.ts;
 819
 820   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 821
 822   LttvTraceState *ts;
 823
 824   LttvTracefileState *tfs;
 825
 826   GArray *hooks;
 827
 828   LttvTraceHook hook;
 829
 830   LttvAttributeValue val;
 831
 832   nb_trace = lttv_traceset_number(traceset);
 833   for(i = 0 ; i < nb_trace ; i++) {
 834     ts = (LttvTraceState *)self->parent.traces[i];
 835
 836     /* Find the eventtype id for the following events and register the
 837        associated by id hooks. */
 838
 839     hooks = g_array_new(FALSE, FALSE, sizeof(LttvTraceHook));
 840     g_array_set_size(hooks, 9);
 841
 842     lttv_trace_find_hook(ts->parent.t, "core","syscall_entry","syscall_id",
 843         NULL, NULL, syscall_entry, &g_array_index(hooks, LttvTraceHook, 0));
 844
 845     lttv_trace_find_hook(ts->parent.t, "core", "syscall_exit", NULL, NULL,
 846         NULL, syscall_exit, &g_array_index(hooks, LttvTraceHook, 1));
 847
 848     lttv_trace_find_hook(ts->parent.t, "core", "trap_entry", "trap_id",
 849         NULL, NULL, trap_entry, &g_array_index(hooks, LttvTraceHook, 2));
 850
 851     lttv_trace_find_hook(ts->parent.t, "core", "trap_exit", NULL, NULL, NULL,
 852         trap_exit, &g_array_index(hooks, LttvTraceHook, 3));
 853
 854     lttv_trace_find_hook(ts->parent.t, "core", "irq_entry", "irq_id", NULL,
 855         NULL, irq_entry, &g_array_index(hooks, LttvTraceHook, 4));
 856
 857     lttv_trace_find_hook(ts->parent.t, "core", "irq_exit", NULL, NULL, NULL,
 858         irq_exit, &g_array_index(hooks, LttvTraceHook, 5));
 859
 860     lttv_trace_find_hook(ts->parent.t, "core", "schedchange", "in", "out",
 861         "out_state", schedchange, &g_array_index(hooks, LttvTraceHook, 6));
 862
 863     lttv_trace_find_hook(ts->parent.t, "core", "process_fork", "child_pid",
 864         NULL, NULL, process_fork, &g_array_index(hooks, LttvTraceHook, 7));
 865
 866     lttv_trace_find_hook(ts->parent.t, "core", "process_exit", NULL, NULL,
 867         NULL, process_exit, &g_array_index(hooks, LttvTraceHook, 8));
 868
 869     /* Add these hooks to each before_event_by_id hooks list */
 870
 871     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 872     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 873     nb_tracefile = nb_control + nb_per_cpu;
 874     for(j = 0 ; j < nb_tracefile ; j++) {
 875       if(j < nb_control) {
 876         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
 877       }
 878       else {
 879         tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
 880       }
 881
 882       for(k = 0 ; k < hooks->len ; k++) {
 883         hook = g_array_index(hooks, LttvTraceHook, k);
 884         lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.after_event_by_id,
 885           hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k));
 886       }
 887     }
 888     lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
 889     *(val.v_pointer) = hooks;
 890   }
 891 }
 892
 893
 894 void lttv_state_remove_event_hooks(LttvTracesetState *self)
 895 {
 896   LttvTraceset *traceset = self->parent.ts;
 897
 898   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 899
 900   LttvTraceState *ts;
 901
 902   LttvTracefileState *tfs;
 903
 904   GArray *hooks;
 905
 906   LttvTraceHook hook;
 907
 908   LttvAttributeValue val;
 909
 910   nb_trace = lttv_traceset_number(traceset);
 911   for(i = 0 ; i < nb_trace ; i++) {
 912     ts = LTTV_TRACE_STATE(self->parent.traces[i]);
 913     lttv_attribute_find(self->parent.a, LTTV_STATE_HOOKS, LTTV_POINTER, &val);
 914     hooks = *(val.v_pointer);
 915
 916     /* Add these hooks to each before_event_by_id hooks list */
 917
 918     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 919     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 920     nb_tracefile = nb_control + nb_per_cpu;
 921     for(j = 0 ; j < nb_tracefile ; j++) {
 922       if(j < nb_control) {
 923         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
 924       }
 925       else {
 926         tfs = LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
 927       }
 928
 929       for(k = 0 ; k < hooks->len ; k++) {
 930         hook = g_array_index(hooks, LttvTraceHook, k);
 931         lttv_hooks_remove_data(
 932             lttv_hooks_by_id_find(tfs->parent.after_event_by_id,
 933             hook.id), hook.h, &g_array_index(hooks, LttvTraceHook, k));
 934       }
 935     }
 936     g_array_free(hooks, TRUE);
 937   }
 938 }
 939
 940
 941 static gboolean block_end(void *hook_data, void *call_data)
 942 {
 943   LttvTracefileState *tfcs = (LttvTracefileState *)call_data;
 944
 945   LttvTraceState *tcs = (LttvTraceState *)(tfcs->parent.t_context);
 946
 947   LttEventPosition *ep = ltt_event_position_new();
 948
 949   guint nb_block, nb_event;
 950
 951   LttTracefile *tf;
 952
 953   LttvAttribute *saved_states_tree, *saved_state_tree;
 954
 955   LttvAttributeValue value;
 956
 957   ltt_event_position(tfcs->parent.e, ep);
 958
 959   ltt_event_position_get(ep, &nb_block, &nb_event, &tf);
 960   tcs->nb_event += nb_event - tfcs->saved_position;
 961   tfcs->saved_position = 0;
 962   if(tcs->nb_event >= tcs->save_interval) {
 963     saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
 964         LTTV_STATE_SAVED_STATES);
 965     saved_state_tree = g_object_new(LTTV_ATTRIBUTE_TYPE, NULL);
 966     value = lttv_attribute_add(saved_states_tree,
 967         lttv_attribute_get_number(saved_states_tree), LTTV_GOBJECT);
 968     *(value.v_gobject) = (GObject *)saved_state_tree;
 969     value = lttv_attribute_add(saved_state_tree, LTTV_STATE_TIME, LTTV_TIME);
 970     *(value.v_time) = tfcs->parent.timestamp;
 971     lttv_state_save(tcs, saved_state_tree);
 972     tcs->nb_event = 0;
 973   }
 974   return FALSE;
 975 }
 976
 977
 978 void lttv_state_save_add_event_hooks(LttvTracesetState *self)
 979 {
 980   LttvTraceset *traceset = self->parent.ts;
 981
 982   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
 983
 984   LttvTraceState *ts;
 985
 986   LttvTracefileState *tfs;
 987
 988   LttvTraceHook hook;
 989
 990   nb_trace = lttv_traceset_number(traceset);
 991   for(i = 0 ; i < nb_trace ; i++) {
 992     ts = (LttvTraceState *)self->parent.traces[i];
 993     lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL,
 994         NULL, NULL, block_end, &hook);
 995
 996     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
 997     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
 998     nb_tracefile = nb_control + nb_per_cpu;
 999     for(j = 0 ; j < nb_tracefile ; j++) {
1000       if(j < nb_control) {
1001         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
1002       }
1003       else {
1004         tfs =LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
1005       }
1006
1007       lttv_hooks_add(lttv_hooks_by_id_find(tfs->parent.after_event_by_id,
1008           hook.id), hook.h, NULL);
1009     }
1010   }
1011 }
1012
1013
1014 void lttv_state_save_remove_event_hooks(LttvTracesetState *self)
1015 {
1016   LttvTraceset *traceset = self->parent.ts;
1017
1018   guint i, j, k, nb_trace, nb_control, nb_per_cpu, nb_tracefile;
1019
1020   LttvTraceState *ts;
1021
1022   LttvTracefileState *tfs;
1023
1024   LttvTraceHook hook;
1025
1026   nb_trace = lttv_traceset_number(traceset);
1027   for(i = 0 ; i < nb_trace ; i++) {
1028     ts = LTTV_TRACE_STATE(self->parent.traces[i]);
1029     lttv_trace_find_hook(ts->parent.t, "core","block_end",NULL,
1030         NULL, NULL, block_end, &hook);
1031
1032     nb_control = ltt_trace_control_tracefile_number(ts->parent.t);
1033     nb_per_cpu = ltt_trace_per_cpu_tracefile_number(ts->parent.t);
1034     nb_tracefile = nb_control + nb_per_cpu;
1035     for(j = 0 ; j < nb_tracefile ; j++) {
1036       if(j < nb_control) {
1037         tfs = LTTV_TRACEFILE_STATE(ts->parent.control_tracefiles[j]);
1038       }
1039       else {
1040         tfs =LTTV_TRACEFILE_STATE(ts->parent.per_cpu_tracefiles[j-nb_control]);
1041       }
1042
1043       lttv_hooks_remove_data(lttv_hooks_by_id_find(
1044           tfs->parent.after_event_by_id, hook.id), hook.h, NULL);
1045     }
1046   }
1047 }
1048
1049
1050 void lttv_state_traceset_seek_time_closest(LttvTracesetState *self, LttTime t)
1051 {
1052   LttvTraceset *traceset = self->parent.ts;
1053
1054   guint i, j, nb_trace, nb_saved_state;
1055
1056   int min_pos, mid_pos, max_pos;
1057
1058   LttvTraceState *tcs;
1059
1060   LttvAttributeValue value;
1061
1062   LttvAttributeType type;
1063
1064   LttvAttributeName name;
1065
1066   LttvAttribute *saved_states_tree, *saved_state_tree, *closest_tree;
1067
1068   nb_trace = lttv_traceset_number(traceset);
1069   for(i = 0 ; i < nb_trace ; i++) {
1070     tcs = (LttvTraceState *)self->parent.traces[i];
1071
1072     if(tcs->recompute_state_in_seek) {
1073       if(tcs->saved_state_available) {
1074         saved_states_tree = lttv_attribute_find_subdir(tcs->parent.t_a,
1075             LTTV_STATE_SAVED_STATES);
1076         min_pos = -1;
1077         max_pos = lttv_attribute_get_number(saved_states_tree) - 1;
1078         mid_pos = max_pos / 2;
1079         while(min_pos < max_pos) {
1080           type = lttv_attribute_get(saved_states_tree, mid_pos, &name, &value);
1081           g_assert(type == LTTV_GOBJECT);
1082           saved_state_tree = *((LttvAttribute **)(value.v_gobject));
1083           type = lttv_attribute_get_by_name(saved_state_tree, LTTV_STATE_TIME,
1084               &value);
1085           g_assert(type == LTTV_TIME);
1086           if(ltt_time_compare(*(value.v_time), t) < 0) {
1087             min_pos = mid_pos;
1088             closest_tree = saved_state_tree;
1089           }
1090           else max_pos = mid_pos - 1;
1091
1092           mid_pos = (min_pos + max_pos + 1) / 2;
1093         }
1094
1095         /* restore the closest earlier saved state */
1096         if(min_pos != -1) lttv_state_restore(tcs, closest_tree);
1097
1098       }
1099       /* There is no saved state yet we want to have it. Restart at T0 */
1100       else {
1101         restore_init_state(tcs);
1102         lttv_process_trace_seek_time(&(tcs->parent), ltt_time_zero);
1103       }
1104     }
1105     /* We want to seek quickly without restoring/updating the state */
1106     else {
1107       restore_init_state(tcs);
1108       lttv_process_trace_seek_time(&(tcs->parent), t);
1109     }
1110   }
1111 }
1112
1113
1114 static void
1115 traceset_state_instance_init (GTypeInstance *instance, gpointer g_class)
1116 {
1117 }
1118
1119
1120 static void
1121 traceset_state_finalize (LttvTracesetState *self)
1122 {
1123   G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACESET_CONTEXT_TYPE))->
1124       finalize(G_OBJECT(self));
1125 }
1126
1127
1128 static void
1129 traceset_state_class_init (LttvTracesetContextClass *klass)
1130 {
1131   GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
1132
1133   gobject_class->finalize = (void (*)(GObject *self)) traceset_state_finalize;
1134   klass->init = (void (*)(LttvTracesetContext *self, LttvTraceset *ts))init;
1135   klass->fini = (void (*)(LttvTracesetContext *self))fini;
1136   klass->new_traceset_context = new_traceset_context;
1137   klass->new_trace_context = new_trace_context;
1138   klass->new_tracefile_context = new_tracefile_context;
1139 }
1140
1141
1142 GType
1143 lttv_traceset_state_get_type(void)
1144 {
1145   static GType type = 0;
1146   if (type == 0) {
1147     static const GTypeInfo info = {
1148       sizeof (LttvTracesetStateClass),
1149       NULL,   /* base_init */
1150       NULL,   /* base_finalize */
1151       (GClassInitFunc) traceset_state_class_init,   /* class_init */
1152       NULL,   /* class_finalize */
1153       NULL,   /* class_data */
1154       sizeof (LttvTracesetContext),
1155       0,      /* n_preallocs */
1156       (GInstanceInitFunc) traceset_state_instance_init    /* instance_init */
1157     };
1158
1159     type = g_type_register_static (LTTV_TRACESET_CONTEXT_TYPE, "LttvTracesetStateType",
1160         &info, 0);
1161   }
1162   return type;
1163 }
1164
1165
1166 static void
1167 trace_state_instance_init (GTypeInstance *instance, gpointer g_class)
1168 {
1169 }
1170
1171
1172 static void
1173 trace_state_finalize (LttvTraceState *self)
1174 {
1175   G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACE_CONTEXT_TYPE))->
1176       finalize(G_OBJECT(self));
1177 }
1178
1179
1180 static void
1181 trace_state_class_init (LttvTraceStateClass *klass)
1182 {
1183   GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
1184
1185   gobject_class->finalize = (void (*)(GObject *self)) trace_state_finalize;
1186   klass->state_save = state_save;
1187   klass->state_restore = state_restore;
1188   klass->state_saved_free = state_saved_free;
1189 }
1190
1191
1192 GType
1193 lttv_trace_state_get_type(void)
1194 {
1195   static GType type = 0;
1196   if (type == 0) {
1197     static const GTypeInfo info = {
1198       sizeof (LttvTraceStateClass),
1199       NULL,   /* base_init */
1200       NULL,   /* base_finalize */
1201       (GClassInitFunc) trace_state_class_init,   /* class_init */
1202       NULL,   /* class_finalize */
1203       NULL,   /* class_data */
1204       sizeof (LttvTraceState),
1205       0,      /* n_preallocs */
1206       (GInstanceInitFunc) trace_state_instance_init    /* instance_init */
1207     };
1208
1209     type = g_type_register_static (LTTV_TRACE_CONTEXT_TYPE,
1210         "LttvTraceStateType", &info, 0);
1211   }
1212   return type;
1213 }
1214
1215
1216 static void
1217 tracefile_state_instance_init (GTypeInstance *instance, gpointer g_class)
1218 {
1219 }
1220
1221
1222 static void
1223 tracefile_state_finalize (LttvTracefileState *self)
1224 {
1225   G_OBJECT_CLASS(g_type_class_peek(LTTV_TRACEFILE_CONTEXT_TYPE))->
1226       finalize(G_OBJECT(self));
1227 }
1228
1229
1230 static void
1231 tracefile_state_class_init (LttvTracefileStateClass *klass)
1232 {
1233   GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
1234
1235   gobject_class->finalize = (void (*)(GObject *self)) tracefile_state_finalize;
1236 }
1237
1238
1239 GType
1240 lttv_tracefile_state_get_type(void)
1241 {
1242   static GType type = 0;
1243   if (type == 0) {
1244     static const GTypeInfo info = {
1245       sizeof (LttvTracefileStateClass),
1246       NULL,   /* base_init */
1247       NULL,   /* base_finalize */
1248       (GClassInitFunc) tracefile_state_class_init,   /* class_init */
1249       NULL,   /* class_finalize */
1250       NULL,   /* class_data */
1251       sizeof (LttvTracefileState),
1252       0,      /* n_preallocs */
1253       (GInstanceInitFunc) tracefile_state_instance_init    /* instance_init */
1254     };
1255
1256     type = g_type_register_static (LTTV_TRACEFILE_CONTEXT_TYPE,
1257         "LttvTracefileStateType", &info, 0);
1258   }
1259   return type;
1260 }
1261
1262
1263 void lttv_state_init(int argc, char **argv)
1264 {
1265   LTTV_STATE_UNNAMED = g_quark_from_string("unnamed");
1266   LTTV_STATE_MODE_UNKNOWN = g_quark_from_string("unknown execution mode");
1267   LTTV_STATE_USER_MODE = g_quark_from_string("user mode");
1268   LTTV_STATE_WAIT_FORK = g_quark_from_string("wait fork");
1269   LTTV_STATE_SYSCALL = g_quark_from_string("system call");
1270   LTTV_STATE_TRAP = g_quark_from_string("trap");
1271   LTTV_STATE_IRQ = g_quark_from_string("irq");
1272   LTTV_STATE_SUBMODE_UNKNOWN = g_quark_from_string("unknown submode");
1273   LTTV_STATE_SUBMODE_NONE = g_quark_from_string("(no submode)");
1274   LTTV_STATE_WAIT_CPU = g_quark_from_string("wait for cpu");
1275   LTTV_STATE_EXIT = g_quark_from_string("exiting");
1276   LTTV_STATE_WAIT = g_quark_from_string("wait for I/O");
1277   LTTV_STATE_RUN = g_quark_from_string("running");
1278   LTTV_STATE_TRACEFILES = g_quark_from_string("tracefiles");
1279   LTTV_STATE_PROCESSES = g_quark_from_string("processes");
1280   LTTV_STATE_PROCESS = g_quark_from_string("process");
1281   LTTV_STATE_EVENT = g_quark_from_string("event");
1282   LTTV_STATE_SAVED_STATES = g_quark_from_string("saved states");
1283   LTTV_STATE_TIME = g_quark_from_string("time");
1284   LTTV_STATE_HOOKS = g_quark_from_string("saved state hooks");
1285 }
1286
1287 void lttv_state_destroy()
1288 {
1289 }
1290
1291
1292
1293