lttv/modules/gui/resourceview/eventhooks.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2003-2004 Mathieu Desnoyers
   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 /*****************************************************************************
  21  *                       Hooks to be called by the main window               *
  22  *****************************************************************************/
  23
  24
  25 /* Event hooks are the drawing hooks called during traceset read. They draw the
  26  * icons, text, lines and background color corresponding to the events read.
  27  *
  28  * Two hooks are used for drawing : before_schedchange and after_schedchange hooks. The
  29  * before_schedchange is called before the state update that occurs with an event and
  30  * the after_schedchange hook is called after this state update.
  31  *
  32  * The before_schedchange hooks fulfill the task of drawing the visible objects that
  33  * corresponds to the data accumulated by the after_schedchange hook.
  34  *
  35  * The after_schedchange hook accumulates the data that need to be shown on the screen
  36  * (items) into a queue. Then, the next before_schedchange hook will draw what that
  37  * queue contains. That's the Right Way (TM) of drawing items on the screen,
  38  * because we need to draw the background first (and then add icons, text, ...
  39  * over it), but we only know the length of a background region once the state
  40  * corresponding to it is over, which happens to be at the next before_schedchange
  41  * hook.
  42  *
  43  * We also have a hook called at the end of a chunk to draw the information left
  44  * undrawn in each process queue. We use the current time as end of
  45  * line/background.
  46  */
  47
  48 #ifdef HAVE_CONFIG_H
  49 #include <config.h>
  50 #endif
  51
  52 //#define PANGO_ENABLE_BACKEND
  53 #include <gtk/gtk.h>
  54 #include <gdk/gdk.h>
  55 #include <glib.h>
  56 #include <assert.h>
  57 #include <string.h>
  58 #include <stdio.h>
  59 #include <inttypes.h>
  60
  61 //#include <pango/pango.h>
  62
  63 #include <ltt/event.h>
  64 #include <ltt/time.h>
  65 #include <ltt/trace.h>
  66
  67 #include <lttv/lttv.h>
  68 #include <lttv/hook.h>
  69 #include <lttv/state.h>
  70 #include <lttvwindow/lttvwindow.h>
  71 #include <lttvwindow/lttvwindowtraces.h>
  72 #include <lttvwindow/support.h>
  73
  74
  75 #include "eventhooks.h"
  76 #include "cfv.h"
  77 #include "processlist.h"
  78 #include "drawing.h"
  79
  80
  81 #define MAX_PATH_LEN 256
  82 #define STATE_LINE_WIDTH 6
  83 #define COLLISION_POSITION(height) (((height - STATE_LINE_WIDTH)/2) -3)
  84
  85 extern GSList *g_legend_list;
  86
  87
  88 /* Action to do when background computation completed.
  89  *
  90  * Wait for all the awaited computations to be over.
  91  */
  92
  93 static gint background_ready(void *hook_data, void *call_data)
  94 {
  95   ControlFlowData *resourceview_data = (ControlFlowData *)hook_data;
  96
  97   resourceview_data->background_info_waiting--;
  98
  99   if(resourceview_data->background_info_waiting == 0) {
 100     g_message("control flow viewer : background computation data ready.");
 101
 102     drawing_clear(resourceview_data->drawing);
 103     processlist_clear(resourceview_data->process_list);
 104     gtk_widget_set_size_request(
 105       resourceview_data->drawing->drawing_area,
 106       -1, processlist_get_height(resourceview_data->process_list));
 107     redraw_notify(resourceview_data, NULL);
 108   }
 109
 110   return 0;
 111 }
 112
 113
 114 /* Request background computation. Verify if it is in progress or ready first.
 115  * Only for each trace in the tab's traceset.
 116  */
 117 static void request_background_data(ControlFlowData *resourceview_data)
 118 {
 119   LttvTraceset* ts =
 120         lttvwindow_get_traceset(resourceview_data->tab);
 121   gint num_traces = lttv_traceset_number(ts);
 122   gint i;
 123   LttvTrace *trace;
 124   LttvTraceState *tstate;
 125
 126   LttvHooks *background_ready_hook =
 127     lttv_hooks_new();
 128   lttv_hooks_add(background_ready_hook, background_ready, resourceview_data,
 129       LTTV_PRIO_DEFAULT);
 130   resourceview_data->background_info_waiting = 0;
 131
 132   for(i=0;i<num_traces;i++) {
 133     trace = lttv_traceset_get(ts, i);
 134
 135     if(lttvwindowtraces_get_ready(g_quark_from_string("state"),trace)==FALSE
 136         && !ts->has_precomputed_states) {
 137
 138       if(lttvwindowtraces_get_in_progress(g_quark_from_string("state"),
 139                                           trace) == FALSE) {
 140         /* We first remove requests that could have been done for the same
 141          * information. Happens when two viewers ask for it before servicing
 142          * starts.
 143          */
 144         if(!lttvwindowtraces_background_request_find(trace, "state"))
 145           lttvwindowtraces_background_request_queue(
 146               main_window_get_widget(resourceview_data->tab), trace, "state");
 147         lttvwindowtraces_background_notify_queue(resourceview_data,
 148                                                  trace,
 149                                                  ltt_time_infinite,
 150                                                  NULL,
 151                                                  background_ready_hook);
 152         resourceview_data->background_info_waiting++;
 153       } else { /* in progress */
 154
 155         lttvwindowtraces_background_notify_current(resourceview_data,
 156                                                    trace,
 157                                                    ltt_time_infinite,
 158                                                    NULL,
 159                                                    background_ready_hook);
 160         resourceview_data->background_info_waiting++;
 161       }
 162     } else {
 163       /* Data ready. By its nature, this viewer doesn't need to have
 164        * its data ready hook called there, because a background
 165        * request is always linked with a redraw.
 166        */
 167     }
 168   }
 169
 170   lttv_hooks_destroy(background_ready_hook);
 171 }
 172
 173
 174 /**
 175  * Event Viewer's constructor hook
 176  *
 177  * This constructor is given as a parameter to the menuitem and toolbar button
 178  * registration. It creates the list.
 179  * @param tab A pointer to the parent tab.
 180  * @return The widget created.
 181  */
 182 GtkWidget *
 183 h_resourceview(LttvPlugin *plugin)
 184 {
 185   LttvPluginTab *ptab = LTTV_PLUGIN_TAB(plugin);
 186   Tab *tab = ptab->tab;
 187   g_info("h_guicontrolflow, %p", tab);
 188   ControlFlowData *resourceview_data = resourceview(ptab);
 189
 190   resourceview_data->tab = tab;
 191
 192   // Unreg done in the GuiControlFlow_Destructor
 193   lttvwindow_register_traceset_notify(tab,
 194         traceset_notify,
 195         resourceview_data);
 196
 197   lttvwindow_register_time_window_notify(tab,
 198                                          update_time_window_hook,
 199                                          resourceview_data);
 200   lttvwindow_register_current_time_notify(tab,
 201                                           update_current_time_hook,
 202                                           resourceview_data);
 203   lttvwindow_register_redraw_notify(tab,
 204                                     redraw_notify,
 205                                     resourceview_data);
 206   lttvwindow_register_continue_notify(tab,
 207                                       continue_notify,
 208                                       resourceview_data);
 209   request_background_data(resourceview_data);
 210
 211
 212   return guicontrolflow_get_widget(resourceview_data) ;
 213
 214 }
 215
 216 void legend_destructor(GtkWindow *legend)
 217 {
 218   g_legend_list = g_slist_remove(g_legend_list, legend);
 219 }
 220
 221 /* Create a popup legend */
 222 GtkWidget *
 223 h_legend(LttvPlugin *plugin)
 224 {
 225   LttvPluginTab *ptab = LTTV_PLUGIN_TAB(plugin);
 226   Tab *tab = ptab->tab;
 227   g_info("h_legend, %p", tab);
 228
 229   GtkWindow *legend = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
 230
 231   g_legend_list = g_slist_append(
 232       g_legend_list,
 233       legend);
 234
 235   g_object_set_data_full(
 236       G_OBJECT(legend),
 237       "legend",
 238       legend,
 239       (GDestroyNotify)legend_destructor);
 240
 241   gtk_window_set_title(legend, "Control Flow View Legend");
 242
 243   GtkWidget *pixmap = create_pixmap(GTK_WIDGET(legend), "lttv-color-list.png");
 244
 245   gtk_container_add(GTK_CONTAINER(legend), GTK_WIDGET(pixmap));
 246
 247   gtk_widget_show(GTK_WIDGET(pixmap));
 248   gtk_widget_show(GTK_WIDGET(legend));
 249
 250
 251   return NULL; /* This is a popup window */
 252 }
 253
 254
 255 int event_selected_hook(void *hook_data, void *call_data)
 256 {
 257   guint *event_number = (guint*) call_data;
 258
 259   g_debug("DEBUG : event selected by main window : %u", *event_number);
 260
 261   return 0;
 262 }
 263
 264 static void cpu_set_line_color(PropertiesLine *prop_line, LttvCPUState *s)
 265 {
 266   GQuark present_state;
 267
 268   if(s->mode_stack->len == 0)
 269     present_state = LTTV_CPU_UNKNOWN;
 270   else
 271     present_state = ((GQuark*)s->mode_stack->data)[s->mode_stack->len-1];
 272
 273   if(present_state == LTTV_CPU_IDLE) {
 274     prop_line->color = drawing_colors_cpu[COL_CPU_IDLE];
 275   }
 276   else if(present_state == LTTV_CPU_BUSY) {
 277     prop_line->color = drawing_colors_cpu[COL_CPU_BUSY];
 278   }
 279   else if(present_state == LTTV_CPU_IRQ) {
 280     prop_line->color = drawing_colors_cpu[COL_CPU_IRQ];
 281   }
 282   else if(present_state == LTTV_CPU_SOFT_IRQ) {
 283     prop_line->color = drawing_colors_cpu[COL_CPU_SOFT_IRQ];
 284   }
 285   else if(present_state == LTTV_CPU_TRAP) {
 286     prop_line->color = drawing_colors_cpu[COL_CPU_TRAP];
 287   } else {
 288     prop_line->color = drawing_colors_cpu[COL_CPU_UNKNOWN];
 289   }
 290 }
 291
 292 static void irq_set_line_color(PropertiesLine *prop_line, LttvIRQState *s)
 293 {
 294   GQuark present_state;
 295   if(s->mode_stack->len == 0)
 296     present_state = LTTV_IRQ_UNKNOWN;
 297   else
 298     present_state = ((GQuark*)s->mode_stack->data)[s->mode_stack->len-1];
 299
 300   if(present_state == LTTV_IRQ_IDLE) {
 301     prop_line->color = drawing_colors_irq[COL_IRQ_IDLE];
 302   }
 303   else if(present_state == LTTV_IRQ_BUSY) {
 304     prop_line->color = drawing_colors_irq[COL_IRQ_BUSY];
 305   }
 306   else {
 307     prop_line->color = drawing_colors_irq[COL_IRQ_UNKNOWN];
 308   }
 309 }
 310
 311 static void soft_irq_set_line_color(PropertiesLine *prop_line, LttvSoftIRQState *s)
 312 {
 313   if(s->running)
 314     prop_line->color = drawing_colors_soft_irq[COL_SOFT_IRQ_BUSY];
 315   else if(s->pending)
 316     prop_line->color = drawing_colors_soft_irq[COL_SOFT_IRQ_PENDING];
 317   else
 318     prop_line->color = drawing_colors_soft_irq[COL_SOFT_IRQ_IDLE];
 319 }
 320
 321 static void trap_set_line_color(PropertiesLine *prop_line, LttvTrapState *s)
 322 {
 323   if(s->running == 0)
 324     prop_line->color = drawing_colors_trap[COL_TRAP_IDLE];
 325   else
 326     prop_line->color = drawing_colors_trap[COL_TRAP_BUSY];
 327 }
 328
 329 static void bdev_set_line_color(PropertiesLine *prop_line, LttvBdevState *s)
 330 {
 331   GQuark present_state;
 332   if(s == 0 || s->mode_stack->len == 0)
 333     present_state = LTTV_BDEV_UNKNOWN;
 334   else
 335     present_state = ((GQuark*)s->mode_stack->data)[s->mode_stack->len-1];
 336
 337   if(present_state == LTTV_BDEV_IDLE) {
 338     prop_line->color = drawing_colors_bdev[COL_BDEV_IDLE];
 339   }
 340   else if(present_state == LTTV_BDEV_BUSY_READING) {
 341     prop_line->color = drawing_colors_bdev[COL_BDEV_BUSY_READING];
 342   }
 343   else if(present_state == LTTV_BDEV_BUSY_WRITING) {
 344     prop_line->color = drawing_colors_bdev[COL_BDEV_BUSY_WRITING];
 345   }
 346   else {
 347     prop_line->color = drawing_colors_bdev[COL_BDEV_UNKNOWN];
 348   }
 349 }
 350
 351 /* before_schedchange_hook
 352  *
 353  * This function basically draw lines and icons. Two types of lines are drawn :
 354  * one small (3 pixels?) representing the state of the process and the second
 355  * type is thicker (10 pixels?) representing on which CPU a process is running
 356  * (and this only in running state).
 357  *
 358  * Extremums of the lines :
 359  * x_min : time of the last event context for this process kept in memory.
 360  * x_max : time of the current event.
 361  * y : middle of the process in the process list. The process is found in the
 362  * list, therefore is it's position in pixels.
 363  *
 364  * The choice of lines'color is defined by the context of the last event for this
 365  * process.
 366  */
 367
 368
 369 int before_schedchange_hook(void *hook_data, void *call_data)
 370 {
 371
 372   LttvEvent *event;
 373   LttvTraceState *ts;
 374
 375   event = (LttvEvent *) call_data;
 376   if (strcmp(lttv_traceset_get_name_from_event(event),"sched_switch") != 0)
 377     return FALSE;
 378
 379   ControlFlowData *resourceview_data = (ControlFlowData*)hook_data;
 380
 381   LttTime evtime = lttv_event_get_timestamp(event);
 382
 383   /* we are in a schedchange, before the state update. We must draw the
 384    * items corresponding to the state before it changes : now is the right
 385    * time to do it.
 386    */
 387
 388   guint pid_out;
 389   pid_out = lttv_event_get_long(event, "prev_tid");
 390 // TODO: can't we reenable this? pmf
 391 //  if(pid_in != 0 && pid_out != 0) {
 392 //    /* not a transition to/from idle */
 393 //    return 0;
 394 //  }
 395
 396
 397   guint cpu = lttv_traceset_get_cpuid_from_event(event);
 398   ts = event->state;
 399
 400   guint trace_num = 0;//TODO fdeslauriers 2012-07-17: // Use trace handle to know trace number
 401   /* Add process to process list (if not present) */
 402   HashedResourceData *hashed_process_data = NULL;
 403
 404   hashed_process_data = resourcelist_obtain_cpu(resourceview_data, trace_num, cpu);
 405
 406   /* Now, the process is in the state hash and our own process hash.
 407    * We definitely can draw the items related to the ending state.
 408    */
 409
 410   if(ltt_time_compare(hashed_process_data->next_good_time,
 411                       evtime) > 0)
 412   {
 413     if(hashed_process_data->x.middle_marked == FALSE) {
 414
 415       TimeWindow time_window =
 416         lttvwindow_get_time_window(resourceview_data->tab);
 417 #ifdef EXTRA_CHECK
 418       if(ltt_time_compare(evtime, time_window.start_time) == -1
 419             || ltt_time_compare(evtime, time_window.end_time) == 1)
 420         return;
 421 #endif //EXTRA_CHECK
 422       Drawing_t *drawing = resourceview_data->drawing;
 423       guint width = drawing->width;
 424       guint x;
 425       convert_time_to_pixels(
 426                 time_window,
 427                 evtime,
 428                 width,
 429                 &x);
 430
 431       /* Draw collision indicator */
 432       gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
 433       gdk_draw_point(hashed_process_data->pixmap,
 434                      drawing->gc,
 435                      x,
 436                      COLLISION_POSITION(hashed_process_data->height));
 437       hashed_process_data->x.middle_marked = TRUE;
 438     }
 439   } else {
 440     TimeWindow time_window =
 441       lttvwindow_get_time_window(resourceview_data->tab);
 442 #ifdef EXTRA_CHECK
 443     if(ltt_time_compare(evtime, time_window.start_time) == -1
 444               || ltt_time_compare(evtime, time_window.end_time) == 1)
 445       return;
 446 #endif //EXTRA_CHECK
 447     Drawing_t *drawing = resourceview_data->drawing;
 448     guint width = drawing->width;
 449     guint x;
 450     convert_time_to_pixels(
 451               time_window,
 452               evtime,
 453               width,
 454               &x);
 455
 456     /* Jump over draw if we are at the same x position */
 457     if(x == hashed_process_data->x.middle &&
 458          hashed_process_data->x.middle_used)
 459     {
 460       if(hashed_process_data->x.middle_marked == FALSE) {
 461         /* Draw collision indicator */
 462         gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
 463         gdk_draw_point(hashed_process_data->pixmap,
 464                        drawing->gc,
 465                        x,
 466                        COLLISION_POSITION(hashed_process_data->height));
 467         hashed_process_data->x.middle_marked = TRUE;
 468       }
 469       /* jump */
 470     } else {
 471       DrawContext draw_context;
 472
 473       /* Now create the drawing context that will be used to draw
 474        * items related to the last state. */
 475       draw_context.drawable = hashed_process_data->pixmap;
 476       draw_context.gc = drawing->gc;
 477       draw_context.pango_layout = drawing->pango_layout;
 478       draw_context.drawinfo.start.x = hashed_process_data->x.middle;
 479       draw_context.drawinfo.end.x = x;
 480
 481       draw_context.drawinfo.y.over = 1;
 482       draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
 483       draw_context.drawinfo.y.under = hashed_process_data->height;
 484
 485       draw_context.drawinfo.start.offset.over = 0;
 486       draw_context.drawinfo.start.offset.middle = 0;
 487       draw_context.drawinfo.start.offset.under = 0;
 488       draw_context.drawinfo.end.offset.over = 0;
 489       draw_context.drawinfo.end.offset.middle = 0;
 490       draw_context.drawinfo.end.offset.under = 0;
 491
 492       {
 493         /* Draw the line */
 494         //PropertiesLine prop_line = prepare_s_e_line(process);
 495         PropertiesLine prop_line;
 496         prop_line.line_width = STATE_LINE_WIDTH;
 497         prop_line.style = GDK_LINE_SOLID;
 498         prop_line.y = MIDDLE;
 499         cpu_set_line_color(&prop_line, &(ts->cpu_states[cpu]));
 500         draw_line((void*)&prop_line, (void*)&draw_context);
 501
 502       }
 503       /* become the last x position */
 504       hashed_process_data->x.middle = x;
 505       hashed_process_data->x.middle_used = TRUE;
 506       hashed_process_data->x.middle_marked = FALSE;
 507
 508       /* Calculate the next good time */
 509       convert_pixels_to_time(width, x+1, time_window,
 510                              &hashed_process_data->next_good_time);
 511     }
 512   }
 513
 514   return 0;
 515 }
 516
 517 /* after_schedchange_hook
 518  *
 519  * The draw after hook is called by the reading API to have a
 520  * particular event drawn on the screen.
 521  * @param hook_data ControlFlowData structure of the viewer.
 522  * @param call_data Event context.
 523  *
 524  * This function adds items to be drawn in a queue for each process.
 525  *
 526  */
 527 int after_schedchange_hook(void *hook_data, void *call_data)
 528 {
 529   LttvEvent *event;
 530
 531   event = (LttvEvent *) call_data;
 532
 533   if (strcmp(lttv_traceset_get_name_from_event(event),"sched_switch") != 0)
 534         return FALSE;
 535
 536   ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
 537
 538   LttvTraceState *ts = event->state;
 539 #ifdef BABEL_CLEANUP
 540   LttvFilter *filter = resourceview_data->filter;
 541   if(filter != NULL && filter->head != NULL)
 542     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
 543           tfc->t_context->t,tfc,NULL,NULL))
 544       return FALSE;
 545 #endif
 546
 547   LttTime evtime = lttv_event_get_timestamp(event);
 548
 549   /* Add process to process list (if not present) */
 550   LttvProcessState *process_in;
 551   HashedResourceData *hashed_process_data_in = NULL;
 552
 553   ProcessList *process_list = resourceview_data->process_list;
 554
 555   /* Find process pid_in in the list... */
 556   //process_in = lttv_state_find_process(ts, ANY_CPU, pid_in);
 557   //process_in = tfs->process;
 558   guint cpu =  lttv_traceset_get_cpuid_from_event(event);
 559   guint trace_num = 0; /* TODO set right trace number */
 560   process_in = ts->running_process[cpu];
 561   /* It should exist, because we are after the state update. */
 562 #ifdef EXTRA_CHECK
 563   g_assert(process_in != NULL);
 564 #endif //EXTRA_CHECK
 565
 566   //hashed_process_data_in = processlist_get_process_data(process_list, cpuq, trace_num);
 567   hashed_process_data_in = resourcelist_obtain_cpu(resourceview_data, trace_num, cpu);
 568
 569   /* Set the current process */
 570   process_list->current_hash_data[trace_num][process_in->cpu] =
 571                                              hashed_process_data_in;
 572
 573   if(ltt_time_compare(hashed_process_data_in->next_good_time,
 574                           evtime) <= 0)
 575   {
 576     TimeWindow time_window =
 577     lttvwindow_get_time_window(resourceview_data->tab);
 578
 579 #ifdef EXTRA_CHECK
 580     if(ltt_time_compare(evtime, time_window.start_time) == -1
 581         || ltt_time_compare(evtime, time_window.end_time) == 1)
 582             return;
 583 #endif //EXTRA_CHECK
 584     Drawing_t *drawing = resourceview_data->drawing;
 585     guint width = drawing->width;
 586     guint new_x;
 587
 588     convert_time_to_pixels(
 589         time_window,
 590         evtime,
 591         width,
 592         &new_x);
 593
 594     if(hashed_process_data_in->x.middle != new_x) {
 595       hashed_process_data_in->x.middle = new_x;
 596       hashed_process_data_in->x.middle_used = FALSE;
 597       hashed_process_data_in->x.middle_marked = FALSE;
 598     }
 599   }
 600   return 0;
 601 }
 602
 603 int before_execmode_hook_irq(void *hook_data, void *call_data);
 604 int before_execmode_hook_soft_irq(void *hook_data, void *call_data);
 605 int before_execmode_hook_trap(void *hook_data, void *call_data);
 606
 607 /* before_execmode_hook
 608  *
 609  * This function basically draw lines and icons. Two types of lines are drawn :
 610  * one small (3 pixels?) representing the state of the process and the second
 611  * type is thicker (10 pixels?) representing on which CPU a process is running
 612  * (and this only in running state).
 613  *
 614  * Extremums of the lines :
 615  * x_min : time of the last event context for this process kept in memory.
 616  * x_max : time of the current event.
 617  * y : middle of the process in the process list. The process is found in the
 618  * list, therefore is it's position in pixels.
 619  *
 620  * The choice of lines'color is defined by the context of the last event for this
 621  * process.
 622  */
 623
 624 int before_execmode_hook(void *hook_data, void *call_data)
 625 {
 626   LttvEvent *event;
 627   guint cpu;
 628   guint pid = 0;
 629   LttvTraceState *ts;
 630   LttvProcessState *process;
 631
 632   before_execmode_hook_irq(hook_data, call_data);
 633   before_execmode_hook_soft_irq(hook_data, call_data);
 634 #ifdef TRAP_NO_EXIST
 635   before_execmode_hook_trap(hook_data, call_data);
 636 #endif
 637   /* we are in a execmode, before the state update. We must draw the
 638    * items corresponding to the state before it changes : now is the right
 639    * time to do it.
 640    */
 641   event = (LttvEvent *) call_data;
 642   if ((strncmp(lttv_traceset_get_name_from_event(event),"sys_", sizeof("sys_") - 1) == 0)
 643           ||(strcmp(lttv_traceset_get_name_from_event(event),"exit_syscall") == 0)
 644           ||(strncmp(lttv_traceset_get_name_from_event(event),"irq_handler_",sizeof("irq_handler_") -1) == 0)
 645           ||(strncmp(lttv_traceset_get_name_from_event(event),"softirq_", sizeof("softirq_") - 1) == 0)) {
 646
 647   LttTime evtime = lttv_event_get_timestamp(event);
 648   ControlFlowData *resourceview_data = (ControlFlowData*)hook_data;
 649
 650   /* For the pid */
 651   LttvTraceset *traceSet = lttvwindow_get_traceset(resourceview_data->tab);
 652
 653   cpu = lttv_traceset_get_cpuid_from_event(event);
 654   ts = event->state;
 655
 656   guint trace_num = 0;//TODO fdeslauriers 2012-07-17: // Use trace handle to know trace number
 657
 658   process = ts->running_process[cpu];
 659   g_assert(process != NULL);
 660
 661   /* Well, the process_out existed : we must get it in the process hash
 662    * or add it, and draw its items.
 663    */
 664   /* Add process to process list (if not present) */
 665   HashedResourceData *hashed_process_data = NULL;
 666   ProcessList *process_list = resourceview_data->process_list;
 667
 668   if(likely(process_list->current_hash_data[trace_num][cpu] != NULL)) {
 669     hashed_process_data = process_list->current_hash_data[trace_num][cpu];
 670   } else {
 671       hashed_process_data = resourcelist_obtain_cpu(resourceview_data, trace_num, cpu);
 672
 673     /* Set the current process */
 674     process_list->current_hash_data[trace_num][process->cpu] =
 675                                                hashed_process_data;
 676   }
 677
 678   /* Now, the process is in the state hash and our own process hash.
 679    * We definitely can draw the items related to the ending state.
 680    */
 681
 682   if(likely(ltt_time_compare(hashed_process_data->next_good_time,
 683                       evtime) > 0))
 684   {
 685     if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
 686       TimeWindow time_window =
 687         lttvwindow_get_time_window(resourceview_data->tab);
 688
 689 #ifdef EXTRA_CHECK
 690       if(ltt_time_compare(evtime, time_window.start_time) == -1
 691             || ltt_time_compare(evtime, time_window.end_time) == 1)
 692                 return;
 693 #endif //EXTRA_CHECK
 694       Drawing_t *drawing = resourceview_data->drawing;
 695       guint width = drawing->width;
 696       guint x;
 697       convert_time_to_pixels(
 698                 time_window,
 699                 evtime,
 700                 width,
 701                 &x);
 702
 703       /* Draw collision indicator */
 704       gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
 705       gdk_draw_point(hashed_process_data->pixmap,
 706                      drawing->gc,
 707                      x,
 708                      COLLISION_POSITION(hashed_process_data->height));
 709       hashed_process_data->x.middle_marked = TRUE;
 710     }
 711   }
 712   else {
 713     TimeWindow time_window =
 714       lttvwindow_get_time_window(resourceview_data->tab);
 715
 716 #ifdef EXTRA_CHECK
 717     if(ltt_time_compare(evtime, time_window.start_time) == -1
 718           || ltt_time_compare(evtime, time_window.end_time) == 1)
 719               return;
 720 #endif //EXTRA_CHECK
 721     Drawing_t *drawing = resourceview_data->drawing;
 722     guint width = drawing->width;
 723     guint x;
 724
 725     convert_time_to_pixels(
 726         time_window,
 727         evtime,
 728         width,
 729         &x);
 730
 731
 732     /* Jump over draw if we are at the same x position */
 733     if(unlikely(x == hashed_process_data->x.middle &&
 734              hashed_process_data->x.middle_used))
 735     {
 736       if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
 737         /* Draw collision indicator */
 738         gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
 739         gdk_draw_point(hashed_process_data->pixmap,
 740                        drawing->gc,
 741                        x,
 742                        COLLISION_POSITION(hashed_process_data->height));
 743         hashed_process_data->x.middle_marked = TRUE;
 744       }
 745       /* jump */
 746     }
 747     else {
 748
 749       DrawContext draw_context;
 750       /* Now create the drawing context that will be used to draw
 751        * items related to the last state. */
 752       draw_context.drawable = hashed_process_data->pixmap;
 753       draw_context.gc = drawing->gc;
 754       draw_context.pango_layout = drawing->pango_layout;
 755       draw_context.drawinfo.start.x = hashed_process_data->x.middle;
 756       draw_context.drawinfo.end.x = x;
 757
 758       draw_context.drawinfo.y.over = 1;
 759       draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
 760       draw_context.drawinfo.y.under = hashed_process_data->height;
 761
 762       draw_context.drawinfo.start.offset.over = 0;
 763       draw_context.drawinfo.start.offset.middle = 0;
 764       draw_context.drawinfo.start.offset.under = 0;
 765       draw_context.drawinfo.end.offset.over = 0;
 766       draw_context.drawinfo.end.offset.middle = 0;
 767       draw_context.drawinfo.end.offset.under = 0;
 768
 769       {
 770         /* Draw the line */
 771         PropertiesLine prop_line;
 772         prop_line.line_width = STATE_LINE_WIDTH;
 773         prop_line.style = GDK_LINE_SOLID;
 774         prop_line.y = MIDDLE;
 775         cpu_set_line_color(&prop_line, &ts->cpu_states[cpu]);
 776         draw_line((void*)&prop_line, (void*)&draw_context);
 777       }
 778       /* become the last x position */
 779       hashed_process_data->x.middle = x;
 780       hashed_process_data->x.middle_used = TRUE;
 781       hashed_process_data->x.middle_marked = FALSE;
 782
 783       /* Calculate the next good time */
 784       convert_pixels_to_time(width, x+1, time_window,
 785                              &hashed_process_data->next_good_time);
 786     }
 787   }
 788   }
 789   return 0;
 790 }
 791
 792 int before_execmode_hook_irq(void *hook_data, void *call_data)
 793 {
 794    LttvEvent *event;
 795
 796   event = (LttvEvent *) call_data;
 797
 798   LttTime evtime = lttv_event_get_timestamp(event);
 799   ControlFlowData *resourceview_data = (ControlFlowData*)hook_data;
 800
 801   /* we are in a execmode, before the state update. We must draw the
 802    * items corresponding to the state before it changes : now is the right
 803    * time to do it.
 804    */
 805   /* For the pid */
 806
 807   guint64 irq;
 808   guint cpu = lttv_traceset_get_cpuid_from_event(event);
 809   LttvTraceset *traceSet = lttvwindow_get_traceset(resourceview_data->tab);
 810   LttvTraceState *ts = event->state;;
 811
 812   /*
 813    * Check for LTT_CHANNEL_KERNEL channel name and event ID
 814    * corresponding to LTT_EVENT_IRQ_ENTRY or LTT_EVENT_IRQ_EXIT.
 815    */
 816   if (strncmp(lttv_traceset_get_name_from_event(event),"irq_handler_entry",sizeof("irq_handler_entry")) == 0) {
 817     irq = lttv_event_get_long(event, "irq");
 818   } else if (strncmp(lttv_traceset_get_name_from_event(event),"irq_handler_exit",sizeof("irq_handler_exit")) == 0) {
 819     gint len = ts->cpu_states[cpu].irq_stack->len;
 820     if(len) {
 821       irq = g_array_index(ts->cpu_states[cpu].irq_stack, gint, len-1);
 822     }
 823     else {
 824       return 0;
 825     }
 826   } else
 827     return 0;
 828
 829   guint trace_num = 0;//TODO fdeslauriers 2012-07-17: // Use trace handle to know trace number
 830
 831   /* Well, the process_out existed : we must get it in the process hash
 832    * or add it, and draw its items.
 833    */
 834   /* Add process to process list (if not present) */
 835   HashedResourceData *hashed_process_data = NULL;
 836
 837   hashed_process_data = resourcelist_obtain_irq(resourceview_data, trace_num, irq);
 838   // TODO: fix this, it's ugly and slow:
 839   GQuark name;
 840   {
 841     gchar *str;
 842     str = g_strdup_printf("IRQ %" PRIu64 " [%s]", irq,
 843                     (char*)g_quark_to_string(ts->name_tables->irq_names[irq]));
 844     name = g_quark_from_string(str);
 845     g_free(str);
 846   }
 847   gtk_tree_store_set(resourceview_data->process_list->list_store, &hashed_process_data->y_iter, NAME_COLUMN, g_quark_to_string(name), -1);
 848
 849   /* Now, the process is in the state hash and our own process hash.
 850    * We definitely can draw the items related to the ending state.
 851    */
 852
 853   if(likely(ltt_time_compare(hashed_process_data->next_good_time,
 854                       evtime) > 0))
 855   {
 856     if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
 857       TimeWindow time_window =
 858         lttvwindow_get_time_window(resourceview_data->tab);
 859
 860 #ifdef EXTRA_CHECK
 861       if(ltt_time_compare(evtime, time_window.start_time) == -1
 862             || ltt_time_compare(evtime, time_window.end_time) == 1)
 863                 return;
 864 #endif //EXTRA_CHECK
 865       Drawing_t *drawing = resourceview_data->drawing;
 866       guint width = drawing->width;
 867       guint x;
 868       convert_time_to_pixels(
 869                 time_window,
 870                 evtime,
 871                 width,
 872                 &x);
 873
 874       /* Draw collision indicator */
 875       gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
 876       gdk_draw_point(hashed_process_data->pixmap,
 877                      drawing->gc,
 878                      x,
 879                      COLLISION_POSITION(hashed_process_data->height));
 880       hashed_process_data->x.middle_marked = TRUE;
 881     }
 882   }
 883   else {
 884     TimeWindow time_window =
 885       lttvwindow_get_time_window(resourceview_data->tab);
 886
 887 #ifdef EXTRA_CHECK
 888     if(ltt_time_compare(evtime, time_window.start_time) == -1
 889           || ltt_time_compare(evtime, time_window.end_time) == 1)
 890               return;
 891 #endif //EXTRA_CHECK
 892     Drawing_t *drawing = resourceview_data->drawing;
 893     guint width = drawing->width;
 894     guint x;
 895
 896     convert_time_to_pixels(
 897         time_window,
 898         evtime,
 899         width,
 900         &x);
 901
 902
 903     /* Jump over draw if we are at the same x position */
 904     if(unlikely(x == hashed_process_data->x.middle &&
 905              hashed_process_data->x.middle_used))
 906     {
 907       if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
 908         /* Draw collision indicator */
 909         gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
 910         gdk_draw_point(hashed_process_data->pixmap,
 911                        drawing->gc,
 912                        x,
 913                        COLLISION_POSITION(hashed_process_data->height));
 914         hashed_process_data->x.middle_marked = TRUE;
 915       }
 916       /* jump */
 917     }
 918     else {
 919
 920       DrawContext draw_context;
 921       /* Now create the drawing context that will be used to draw
 922        * items related to the last state. */
 923       draw_context.drawable = hashed_process_data->pixmap;
 924       draw_context.gc = drawing->gc;
 925       draw_context.pango_layout = drawing->pango_layout;
 926       draw_context.drawinfo.start.x = hashed_process_data->x.middle;
 927       draw_context.drawinfo.end.x = x;
 928
 929       draw_context.drawinfo.y.over = 1;
 930       draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
 931       draw_context.drawinfo.y.under = hashed_process_data->height;
 932
 933       draw_context.drawinfo.start.offset.over = 0;
 934       draw_context.drawinfo.start.offset.middle = 0;
 935       draw_context.drawinfo.start.offset.under = 0;
 936       draw_context.drawinfo.end.offset.over = 0;
 937       draw_context.drawinfo.end.offset.middle = 0;
 938       draw_context.drawinfo.end.offset.under = 0;
 939
 940       {
 941         /* Draw the line */
 942         PropertiesLine prop_line;
 943         prop_line.line_width = STATE_LINE_WIDTH;
 944         prop_line.style = GDK_LINE_SOLID;
 945         prop_line.y = MIDDLE;
 946         irq_set_line_color(&prop_line, &ts->irq_states[irq]);
 947         draw_line((void*)&prop_line, (void*)&draw_context);
 948       }
 949       /* become the last x position */
 950       hashed_process_data->x.middle = x;
 951       hashed_process_data->x.middle_used = TRUE;
 952       hashed_process_data->x.middle_marked = FALSE;
 953
 954       /* Calculate the next good time */
 955       convert_pixels_to_time(width, x+1, time_window,
 956                              &hashed_process_data->next_good_time);
 957     }
 958   }
 959
 960   return 0;
 961 }
 962
 963 int before_execmode_hook_soft_irq(void *hook_data, void *call_data)
 964 {
 965
 966    LttvEvent *event;
 967   LttvTraceState *ts;
 968
 969   event = (LttvEvent *) call_data;
 970
 971
 972
 973
 974   /* we are in a execmode, before the state update. We must draw the
 975    * items corresponding to the state before it changes : now is the right
 976    * time to do it.
 977    */
 978   /* For the pid */
 979
 980   guint64 softirq;
 981
 982
 983   /*
 984    * Check for LTT_CHANNEL_KERNEL channel name and event ID
 985    * corresponding to LTT_EVENT_SOFT_IRQ_RAISE, LTT_EVENT_SOFT_IRQ_ENTRY
 986    * or LTT_EVENT_SOFT_IRQ_EXIT.
 987    */
 988
 989   if (strncmp(lttv_traceset_get_name_from_event(event),"softirq_entry",sizeof("softirq_entry")) == 0
 990           || strncmp(lttv_traceset_get_name_from_event(event),"softirq_raise",sizeof("softirq_raise")) == 0) {
 991     softirq =  lttv_event_get_long_unsigned(event, "vec");
 992   } else if (strncmp(lttv_traceset_get_name_from_event(event),"softirq_exit",sizeof("softirq_exit")) == 0) {
 993     LttTime evtime = lttv_event_get_timestamp(event);
 994     ControlFlowData *resourceview_data = (ControlFlowData*)hook_data;
 995     LttvTraceset *traceSet = lttvwindow_get_traceset(resourceview_data->tab);
 996     guint cpu =  lttv_traceset_get_cpuid_from_event(event);
 997     ts = event->state;
 998     gint len = ts->cpu_states[cpu].softirq_stack->len;
 999     if(len) {
1000       softirq = g_array_index(ts->cpu_states[cpu].softirq_stack, gint, len-1);
1001     }
1002     else {
1003       return 0;
1004     }
1005
1006
1007   guint trace_num = 0;//TODO change it to the right value;
1008
1009   /* Well, the process_out existed : we must get it in the process hash
1010    * or add it, and draw its items.
1011    */
1012   /* Add process to process list (if not present) */
1013   HashedResourceData *hashed_process_data = NULL;
1014
1015   hashed_process_data = resourcelist_obtain_soft_irq(resourceview_data, trace_num, softirq);
1016
1017   /* Now, the process is in the state hash and our own process hash.
1018    * We definitely can draw the items related to the ending state.
1019    */
1020
1021   if(likely(ltt_time_compare(hashed_process_data->next_good_time,
1022                       evtime) > 0))
1023   {
1024     if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
1025       TimeWindow time_window =
1026         lttvwindow_get_time_window(resourceview_data->tab);
1027
1028 #ifdef EXTRA_CHECK
1029       if(ltt_time_compare(evtime, time_window.start_time) == -1
1030             || ltt_time_compare(evtime, time_window.end_time) == 1)
1031                 return;
1032 #endif //EXTRA_CHECK
1033       Drawing_t *drawing = resourceview_data->drawing;
1034       guint width = drawing->width;
1035       guint x;
1036       convert_time_to_pixels(
1037                 time_window,
1038                 evtime,
1039                 width,
1040                 &x);
1041
1042       /* Draw collision indicator */
1043       gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
1044       gdk_draw_point(hashed_process_data->pixmap,
1045                      drawing->gc,
1046                      x,
1047                      COLLISION_POSITION(hashed_process_data->height));
1048       hashed_process_data->x.middle_marked = TRUE;
1049     }
1050   }
1051   else {
1052     TimeWindow time_window =
1053       lttvwindow_get_time_window(resourceview_data->tab);
1054
1055 #ifdef EXTRA_CHECK
1056     if(ltt_time_compare(evtime, time_window.start_time) == -1
1057           || ltt_time_compare(evtime, time_window.end_time) == 1)
1058               return;
1059 #endif //EXTRA_CHECK
1060     Drawing_t *drawing = resourceview_data->drawing;
1061     guint width = drawing->width;
1062     guint x;
1063
1064     convert_time_to_pixels(
1065         time_window,
1066         evtime,
1067         width,
1068         &x);
1069
1070
1071     /* Jump over draw if we are at the same x position */
1072     if(unlikely(x == hashed_process_data->x.middle &&
1073              hashed_process_data->x.middle_used))
1074     {
1075       if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
1076         /* Draw collision indicator */
1077         gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
1078         gdk_draw_point(hashed_process_data->pixmap,
1079                        drawing->gc,
1080                        x,
1081                        COLLISION_POSITION(hashed_process_data->height));
1082         hashed_process_data->x.middle_marked = TRUE;
1083       }
1084       /* jump */
1085     }
1086     else {
1087
1088       DrawContext draw_context;
1089       /* Now create the drawing context that will be used to draw
1090        * items related to the last state. */
1091       draw_context.drawable = hashed_process_data->pixmap;
1092       draw_context.gc = drawing->gc;
1093       draw_context.pango_layout = drawing->pango_layout;
1094       draw_context.drawinfo.start.x = hashed_process_data->x.middle;
1095       draw_context.drawinfo.end.x = x;
1096
1097       draw_context.drawinfo.y.over = 1;
1098       draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
1099       draw_context.drawinfo.y.under = hashed_process_data->height;
1100
1101       draw_context.drawinfo.start.offset.over = 0;
1102       draw_context.drawinfo.start.offset.middle = 0;
1103       draw_context.drawinfo.start.offset.under = 0;
1104       draw_context.drawinfo.end.offset.over = 0;
1105       draw_context.drawinfo.end.offset.middle = 0;
1106       draw_context.drawinfo.end.offset.under = 0;
1107
1108       {
1109         /* Draw the line */
1110         PropertiesLine prop_line;
1111         prop_line.line_width = STATE_LINE_WIDTH;
1112         prop_line.style = GDK_LINE_SOLID;
1113         prop_line.y = MIDDLE;
1114         soft_irq_set_line_color(&prop_line, &ts->soft_irq_states[softirq]);
1115         draw_line((void*)&prop_line, (void*)&draw_context);
1116       }
1117       /* become the last x position */
1118       hashed_process_data->x.middle = x;
1119       hashed_process_data->x.middle_used = TRUE;
1120       hashed_process_data->x.middle_marked = FALSE;
1121
1122       /* Calculate the next good time */
1123       convert_pixels_to_time(width, x+1, time_window,
1124                              &hashed_process_data->next_good_time);
1125     }
1126   }
1127   }
1128   return 0;
1129 }
1130 #ifdef TRAP_NO_EXIST
1131 int before_execmode_hook_trap(void *hook_data, void *call_data)
1132 {
1133   LttvTraceHook *th = (LttvTraceHook*)hook_data;
1134   EventsRequest *events_request = (EventsRequest*)th->hook_data;
1135   ControlFlowData *resourceview_data = events_request->viewer_data;
1136
1137   LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
1138
1139   LttvTracefileState *tfs = (LttvTracefileState *)call_data;
1140   LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
1141   struct marker_info *minfo;
1142
1143   LttEvent *e;
1144   e = ltt_tracefile_get_event(tfc->tf);
1145
1146   LttTime evtime = ltt_event_time(e);
1147
1148   /* we are in a execmode, before the state update. We must draw the
1149    * items corresponding to the state before it changes : now is the right
1150    * time to do it.
1151    */
1152   /* For the pid */
1153
1154   guint64 trap;
1155   guint cpu = tfs->cpu;
1156
1157   /*
1158    * Check for LTT_CHANNEL_KERNEL channel name and event ID
1159    * corresponding to LTT_EVENT_TRAP/PAGE_FAULT_ENTRY or
1160    * LTT_EVENT_TRAP/PAGE_FAULT_EXIT.
1161    */
1162   if (tfc->tf->name != LTT_CHANNEL_KERNEL)
1163     return 0;
1164   minfo = marker_get_info_from_id(tfc->tf->mdata, e->event_id);
1165   g_assert(minfo != NULL);
1166   if (minfo->name == LTT_EVENT_TRAP_ENTRY
1167       || minfo->name == LTT_EVENT_PAGE_FAULT_ENTRY
1168       || minfo->name == LTT_EVENT_PAGE_FAULT_NOSEM_ENTRY) {
1169     trap = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
1170   } else if (minfo->name == LTT_EVENT_TRAP_EXIT
1171              || minfo->name == LTT_EVENT_PAGE_FAULT_EXIT
1172              || minfo->name == LTT_EVENT_PAGE_FAULT_NOSEM_EXIT) {
1173     gint len = ts->cpu_states[cpu].trap_stack->len;
1174     if(len) {
1175       trap = g_array_index(ts->cpu_states[cpu].trap_stack, gint, len-1);
1176     }
1177     else {
1178       return 0;
1179     }
1180   } else
1181     return 0;
1182
1183   guint trace_num = ts->parent.index;
1184
1185   /* Well, the process_out existed : we must get it in the process hash
1186    * or add it, and draw its items.
1187    */
1188   /* Add process to process list (if not present) */
1189   HashedResourceData *hashed_process_data = NULL;
1190
1191   hashed_process_data = resourcelist_obtain_trap(resourceview_data, trace_num, trap);
1192
1193   /* Now, the process is in the state hash and our own process hash.
1194    * We definitely can draw the items related to the ending state.
1195    */
1196
1197   if(likely(ltt_time_compare(hashed_process_data->next_good_time,
1198                       evtime) > 0))
1199   {
1200     if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
1201       TimeWindow time_window =
1202         lttvwindow_get_time_window(resourceview_data->tab);
1203
1204 #ifdef EXTRA_CHECK
1205       if(ltt_time_compare(evtime, time_window.start_time) == -1
1206             || ltt_time_compare(evtime, time_window.end_time) == 1)
1207                 return;
1208 #endif //EXTRA_CHECK
1209       Drawing_t *drawing = resourceview_data->drawing;
1210       guint width = drawing->width;
1211       guint x;
1212       convert_time_to_pixels(
1213                 time_window,
1214                 evtime,
1215                 width,
1216                 &x);
1217
1218       /* Draw collision indicator */
1219       gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
1220       gdk_draw_point(hashed_process_data->pixmap,
1221                      drawing->gc,
1222                      x,
1223                      COLLISION_POSITION(hashed_process_data->height));
1224       hashed_process_data->x.middle_marked = TRUE;
1225     }
1226   }
1227   else {
1228     TimeWindow time_window =
1229       lttvwindow_get_time_window(resourceview_data->tab);
1230
1231 #ifdef EXTRA_CHECK
1232     if(ltt_time_compare(evtime, time_window.start_time) == -1
1233           || ltt_time_compare(evtime, time_window.end_time) == 1)
1234               return;
1235 #endif //EXTRA_CHECK
1236     Drawing_t *drawing = resourceview_data->drawing;
1237     guint width = drawing->width;
1238     guint x;
1239
1240     convert_time_to_pixels(
1241         time_window,
1242         evtime,
1243         width,
1244         &x);
1245
1246
1247     /* Jump over draw if we are at the same x position */
1248     if(unlikely(x == hashed_process_data->x.middle &&
1249              hashed_process_data->x.middle_used))
1250     {
1251       if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
1252         /* Draw collision indicator */
1253         gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
1254         gdk_draw_point(hashed_process_data->pixmap,
1255                        drawing->gc,
1256                        x,
1257                        COLLISION_POSITION(hashed_process_data->height));
1258         hashed_process_data->x.middle_marked = TRUE;
1259       }
1260       /* jump */
1261     }
1262     else {
1263
1264       DrawContext draw_context;
1265       /* Now create the drawing context that will be used to draw
1266        * items related to the last state. */
1267       draw_context.drawable = hashed_process_data->pixmap;
1268       draw_context.gc = drawing->gc;
1269       draw_context.pango_layout = drawing->pango_layout;
1270       draw_context.drawinfo.start.x = hashed_process_data->x.middle;
1271       draw_context.drawinfo.end.x = x;
1272
1273       draw_context.drawinfo.y.over = 1;
1274       draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
1275       draw_context.drawinfo.y.under = hashed_process_data->height;
1276
1277       draw_context.drawinfo.start.offset.over = 0;
1278       draw_context.drawinfo.start.offset.middle = 0;
1279       draw_context.drawinfo.start.offset.under = 0;
1280       draw_context.drawinfo.end.offset.over = 0;
1281       draw_context.drawinfo.end.offset.middle = 0;
1282       draw_context.drawinfo.end.offset.under = 0;
1283
1284       {
1285         /* Draw the line */
1286         PropertiesLine prop_line;
1287         prop_line.line_width = STATE_LINE_WIDTH;
1288         prop_line.style = GDK_LINE_SOLID;
1289         prop_line.y = MIDDLE;
1290         trap_set_line_color(&prop_line, &ts->trap_states[trap]);
1291         draw_line((void*)&prop_line, (void*)&draw_context);
1292       }
1293       /* become the last x position */
1294       hashed_process_data->x.middle = x;
1295       hashed_process_data->x.middle_used = TRUE;
1296       hashed_process_data->x.middle_marked = FALSE;
1297
1298       /* Calculate the next good time */
1299       convert_pixels_to_time(width, x+1, time_window,
1300                              &hashed_process_data->next_good_time);
1301     }
1302   }
1303
1304   return 0;
1305 }
1306 #endif
1307 #ifdef BABEL_CLEANUP
1308 //TODO investigate the use of block dev resource
1309 int before_bdev_event_hook(void *hook_data, void *call_data)
1310 {
1311 LttvEvent *event;
1312   guint cpu;
1313   guint pid = 0;
1314   LttvTraceState *ts;
1315   LttvProcessState *process;
1316
1317
1318   /* we are in a execmode, before the state update. We must draw the
1319    * items corresponding to the state before it changes : now is the right
1320    * time to do it.
1321    */
1322
1323   event = (LttvEvent *) call_data;
1324   if (strcmp(lttv_traceset_get_name_from_event(event),"block_rq_issue") != 0 && strcmp(lttv_traceset_get_name_from_event(event),"block_rq_complete") != 0)
1325         return FALSE;
1326
1327
1328   ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
1329
1330   LttvTraceState *ts = event->state;
1331   /* For the pid */
1332
1333   guint8 major = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
1334   guint8 minor = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 1));
1335   gint devcode_gint = MKDEV(major,minor);
1336
1337   guint trace_num = 0; //TODO put the real trace_num;
1338
1339   LttvBdevState *bdev = g_hash_table_lookup(ts->bdev_states, &devcode_gint);
1340   /* the result of the lookup might be NULL. that's ok, the rest of the function
1341      should understand it was not found and that its state is unknown */
1342
1343   /* Well, the process_out existed : we must get it in the process hash
1344    * or add it, and draw its items.
1345    */
1346   /* Add process to process list (if not present) */
1347   HashedResourceData *hashed_process_data = NULL;
1348 //  LttTime birth = process->creation_time;
1349
1350 //  if(likely(process_list->current_hash_data[trace_num][cpu] != NULL)) {
1351 //    hashed_process_data = process_list->current_hash_data[trace_num][cpu];
1352 //  } else {
1353   hashed_process_data = resourcelist_obtain_bdev(resourceview_data, trace_num, devcode_gint);
1354     ////hashed_process_data = processlist_get_process_data(process_list, resourceq, trace_num);
1355 //    hashed_process_data = processlist_get_process_data(process_list,
1356 //            pid,
1357 //            process->cpu,
1358 //            &birth,
1359 //            trace_num);
1360 //
1361     /* Set the current process */
1362 //    process_list->current_hash_data[trace_num][process->cpu] =
1363 //                                               hashed_process_data;
1364 //  }
1365
1366   /* Now, the process is in the state hash and our own process hash.
1367    * We definitely can draw the items related to the ending state.
1368    */
1369
1370   if(likely(ltt_time_compare(hashed_process_data->next_good_time,
1371                       evtime) > 0))
1372   {
1373     if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
1374       TimeWindow time_window =
1375         lttvwindow_get_time_window(resourceview_data->tab);
1376
1377 #ifdef EXTRA_CHECK
1378       if(ltt_time_compare(evtime, time_window.start_time) == -1
1379             || ltt_time_compare(evtime, time_window.end_time) == 1)
1380                 return;
1381 #endif //EXTRA_CHECK
1382       Drawing_t *drawing = resourceview_data->drawing;
1383       guint width = drawing->width;
1384       guint x;
1385       convert_time_to_pixels(
1386                 time_window,
1387                 evtime,
1388                 width,
1389                 &x);
1390
1391       /* Draw collision indicator */
1392       gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
1393       gdk_draw_point(hashed_process_data->pixmap,
1394                      drawing->gc,
1395                      x,
1396                      COLLISION_POSITION(hashed_process_data->height));
1397       hashed_process_data->x.middle_marked = TRUE;
1398     }
1399   }
1400   else {
1401     TimeWindow time_window =
1402       lttvwindow_get_time_window(resourceview_data->tab);
1403
1404 #ifdef EXTRA_CHECK
1405     if(ltt_time_compare(evtime, time_window.start_time) == -1
1406           || ltt_time_compare(evtime, time_window.end_time) == 1)
1407               return;
1408 #endif //EXTRA_CHECK
1409     Drawing_t *drawing = resourceview_data->drawing;
1410     guint width = drawing->width;
1411     guint x;
1412
1413     convert_time_to_pixels(
1414         time_window,
1415         evtime,
1416         width,
1417         &x);
1418
1419
1420     /* Jump over draw if we are at the same x position */
1421     if(unlikely(x == hashed_process_data->x.middle &&
1422              hashed_process_data->x.middle_used))
1423     {
1424       if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
1425         /* Draw collision indicator */
1426         gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
1427         gdk_draw_point(hashed_process_data->pixmap,
1428                        drawing->gc,
1429                        x,
1430                        COLLISION_POSITION(hashed_process_data->height));
1431         hashed_process_data->x.middle_marked = TRUE;
1432       }
1433       /* jump */
1434     }
1435     else {
1436
1437       DrawContext draw_context;
1438       /* Now create the drawing context that will be used to draw
1439        * items related to the last state. */
1440       draw_context.drawable = hashed_process_data->pixmap;
1441       draw_context.gc = drawing->gc;
1442       draw_context.pango_layout = drawing->pango_layout;
1443       draw_context.drawinfo.start.x = hashed_process_data->x.middle;
1444       draw_context.drawinfo.end.x = x;
1445
1446       draw_context.drawinfo.y.over = 1;
1447       draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
1448       draw_context.drawinfo.y.under = hashed_process_data->height;
1449
1450       draw_context.drawinfo.start.offset.over = 0;
1451       draw_context.drawinfo.start.offset.middle = 0;
1452       draw_context.drawinfo.start.offset.under = 0;
1453       draw_context.drawinfo.end.offset.over = 0;
1454       draw_context.drawinfo.end.offset.middle = 0;
1455       draw_context.drawinfo.end.offset.under = 0;
1456
1457       {
1458         /* Draw the line */
1459         PropertiesLine prop_line;
1460         prop_line.line_width = STATE_LINE_WIDTH;
1461         prop_line.style = GDK_LINE_SOLID;
1462         prop_line.y = MIDDLE;
1463         bdev_set_line_color(&prop_line, bdev);
1464         draw_line((void*)&prop_line, (void*)&draw_context);
1465       }
1466       /* become the last x position */
1467       hashed_process_data->x.middle = x;
1468       hashed_process_data->x.middle_used = TRUE;
1469       hashed_process_data->x.middle_marked = FALSE;
1470
1471       /* Calculate the next good time */
1472       convert_pixels_to_time(width, x+1, time_window,
1473                              &hashed_process_data->next_good_time);
1474     }
1475   }
1476
1477   return 0;
1478 }
1479 #endif
1480 gint update_time_window_hook(void *hook_data, void *call_data)
1481 {
1482   ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
1483   Drawing_t *drawing = resourceview_data->drawing;
1484   ProcessList *process_list = resourceview_data->process_list;
1485
1486   const TimeWindowNotifyData *time_window_nofify_data =
1487                           ((const TimeWindowNotifyData *)call_data);
1488
1489   TimeWindow *old_time_window =
1490     time_window_nofify_data->old_time_window;
1491   TimeWindow *new_time_window =
1492     time_window_nofify_data->new_time_window;
1493
1494   /* Update the ruler */
1495   drawing_update_ruler(resourceview_data->drawing,
1496                        new_time_window);
1497
1498
1499   /* Two cases : zoom in/out or scrolling */
1500
1501   /* In order to make sure we can reuse the old drawing, the scale must
1502    * be the same and the new time interval being partly located in the
1503    * currently shown time interval. (reuse is only for scrolling)
1504    */
1505
1506   g_info("Old time window HOOK : %lu, %lu to %lu, %lu",
1507       old_time_window->start_time.tv_sec,
1508       old_time_window->start_time.tv_nsec,
1509       old_time_window->time_width.tv_sec,
1510       old_time_window->time_width.tv_nsec);
1511
1512   g_info("New time window HOOK : %lu, %lu to %lu, %lu",
1513       new_time_window->start_time.tv_sec,
1514       new_time_window->start_time.tv_nsec,
1515       new_time_window->time_width.tv_sec,
1516       new_time_window->time_width.tv_nsec);
1517
1518   if( new_time_window->time_width.tv_sec == old_time_window->time_width.tv_sec
1519   && new_time_window->time_width.tv_nsec == old_time_window->time_width.tv_nsec)
1520   {
1521     /* Same scale (scrolling) */
1522     g_info("scrolling");
1523     LttTime *ns = &new_time_window->start_time;
1524     LttTime *os = &old_time_window->start_time;
1525     LttTime old_end = old_time_window->end_time;
1526     LttTime new_end = new_time_window->end_time;
1527     //if(ns<os+w<ns+w)
1528     //if(ns<os+w && os+w<ns+w)
1529     //if(ns<old_end && os<ns)
1530     if(ltt_time_compare(*ns, old_end) == -1
1531         && ltt_time_compare(*os, *ns) == -1)
1532     {
1533       g_info("scrolling near right");
1534       /* Scroll right, keep right part of the screen */
1535       guint x = 0;
1536       guint width = resourceview_data->drawing->width;
1537       convert_time_to_pixels(
1538           *old_time_window,
1539           *ns,
1540           width,
1541           &x);
1542
1543       /* Copy old data to new location */
1544       copy_pixmap_region(process_list,
1545                   NULL,
1546                   resourceview_data->drawing->drawing_area->style->black_gc,
1547                   NULL,
1548                   x, 0,
1549                   0, 0,
1550                   resourceview_data->drawing->width-x+SAFETY, -1);
1551
1552       if(drawing->damage_begin == drawing->damage_end)
1553         drawing->damage_begin = resourceview_data->drawing->width-x;
1554       else
1555         drawing->damage_begin = 0;
1556
1557       drawing->damage_end = resourceview_data->drawing->width;
1558
1559       /* Clear the data request background, but not SAFETY */
1560       rectangle_pixmap(process_list,
1561           resourceview_data->drawing->drawing_area->style->black_gc,
1562           TRUE,
1563           drawing->damage_begin+SAFETY, 0,
1564           drawing->damage_end - drawing->damage_begin,  // do not overlap
1565           -1);
1566       gtk_widget_queue_draw(drawing->drawing_area);
1567
1568       /* Get new data for the rest. */
1569       drawing_data_request(resourceview_data->drawing,
1570           drawing->damage_begin, 0,
1571           drawing->damage_end - drawing->damage_begin,
1572           resourceview_data->drawing->height);
1573     } else {
1574       if(ltt_time_compare(*ns,*os) == -1
1575           && ltt_time_compare(*os,new_end) == -1)
1576       {
1577         g_info("scrolling near left");
1578         /* Scroll left, keep left part of the screen */
1579         guint x = 0;
1580         guint width = resourceview_data->drawing->width;
1581         convert_time_to_pixels(
1582             *new_time_window,
1583             *os,
1584             width,
1585             &x);
1586
1587         /* Copy old data to new location */
1588         copy_pixmap_region  (process_list,
1589             NULL,
1590             resourceview_data->drawing->drawing_area->style->black_gc,
1591             NULL,
1592             0, 0,
1593             x, 0,
1594             -1, -1);
1595
1596         if(drawing->damage_begin == drawing->damage_end)
1597           drawing->damage_end = x;
1598         else
1599           drawing->damage_end =
1600             resourceview_data->drawing->width;
1601
1602         drawing->damage_begin = 0;
1603
1604         rectangle_pixmap (process_list,
1605           resourceview_data->drawing->drawing_area->style->black_gc,
1606           TRUE,
1607           drawing->damage_begin, 0,
1608           drawing->damage_end - drawing->damage_begin,  // do not overlap
1609           -1);
1610
1611         gtk_widget_queue_draw(drawing->drawing_area);
1612
1613         /* Get new data for the rest. */
1614         drawing_data_request(resourceview_data->drawing,
1615             drawing->damage_begin, 0,
1616             drawing->damage_end - drawing->damage_begin,
1617             resourceview_data->drawing->height);
1618
1619       } else {
1620         if(ltt_time_compare(*ns,*os) == 0)
1621         {
1622           g_info("not scrolling");
1623         } else {
1624           g_info("scrolling far");
1625           /* Cannot reuse any part of the screen : far jump */
1626
1627
1628           rectangle_pixmap (process_list,
1629             resourceview_data->drawing->drawing_area->style->black_gc,
1630             TRUE,
1631             0, 0,
1632             resourceview_data->drawing->width+SAFETY, // do not overlap
1633             -1);
1634
1635           gtk_widget_queue_draw(drawing->drawing_area);
1636
1637           drawing->damage_begin = 0;
1638           drawing->damage_end = resourceview_data->drawing->width;
1639
1640           drawing_data_request(resourceview_data->drawing,
1641               0, 0,
1642               resourceview_data->drawing->width,
1643               resourceview_data->drawing->height);
1644
1645         }
1646       }
1647     }
1648   } else {
1649     /* Different scale (zoom) */
1650     g_info("zoom");
1651
1652     rectangle_pixmap (process_list,
1653           resourceview_data->drawing->drawing_area->style->black_gc,
1654           TRUE,
1655           0, 0,
1656           resourceview_data->drawing->width+SAFETY, // do not overlap
1657           -1);
1658
1659     gtk_widget_queue_draw(drawing->drawing_area);
1660
1661     drawing->damage_begin = 0;
1662     drawing->damage_end = resourceview_data->drawing->width;
1663
1664     drawing_data_request(resourceview_data->drawing,
1665         0, 0,
1666         resourceview_data->drawing->width,
1667         resourceview_data->drawing->height);
1668   }
1669
1670   /* Update directly when scrolling */
1671   gdk_window_process_updates(resourceview_data->drawing->drawing_area->window,
1672       TRUE);
1673
1674   return 0;
1675 }
1676
1677 gint traceset_notify(void *hook_data, void *call_data)
1678 {
1679   ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
1680   Drawing_t *drawing = resourceview_data->drawing;
1681
1682   if(unlikely(drawing->gc == NULL)) {
1683     return FALSE;
1684   }
1685   if(drawing->dotted_gc == NULL) {
1686     return FALSE;
1687   }
1688
1689   drawing_clear(resourceview_data->drawing);
1690   processlist_clear(resourceview_data->process_list);
1691   gtk_widget_set_size_request(
1692       resourceview_data->drawing->drawing_area,
1693                 -1, processlist_get_height(resourceview_data->process_list));
1694   redraw_notify(resourceview_data, NULL);
1695
1696   request_background_data(resourceview_data);
1697
1698   return FALSE;
1699 }
1700
1701 gint redraw_notify(void *hook_data, void *call_data)
1702 {
1703   ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
1704   Drawing_t *drawing = resourceview_data->drawing;
1705   GtkWidget *widget = drawing->drawing_area;
1706
1707   drawing->damage_begin = 0;
1708   drawing->damage_end = drawing->width;
1709
1710   /* fun feature, to be separated someday... */
1711   drawing_clear(resourceview_data->drawing);
1712   processlist_clear(resourceview_data->process_list);
1713   gtk_widget_set_size_request(
1714       resourceview_data->drawing->drawing_area,
1715                 -1, processlist_get_height(resourceview_data->process_list));
1716   // Clear the images
1717   rectangle_pixmap (resourceview_data->process_list,
1718         widget->style->black_gc,
1719         TRUE,
1720         0, 0,
1721         drawing->alloc_width,
1722         -1);
1723
1724   gtk_widget_queue_draw(drawing->drawing_area);
1725
1726   if(drawing->damage_begin < drawing->damage_end)
1727   {
1728     drawing_data_request(drawing,
1729                          drawing->damage_begin,
1730                          0,
1731                          drawing->damage_end-drawing->damage_begin,
1732                          drawing->height);
1733   }
1734
1735   return FALSE;
1736
1737 }
1738
1739
1740 gint continue_notify(void *hook_data, void *call_data)
1741 {
1742   ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
1743   Drawing_t *drawing = resourceview_data->drawing;
1744
1745   if(drawing->damage_begin < drawing->damage_end)
1746   {
1747     drawing_data_request(drawing,
1748                          drawing->damage_begin,
1749                          0,
1750                          drawing->damage_end-drawing->damage_begin,
1751                          drawing->height);
1752   }
1753
1754   return FALSE;
1755 }
1756
1757
1758 gint update_current_time_hook(void *hook_data, void *call_data)
1759 {
1760   ControlFlowData *resourceview_data = (ControlFlowData*)hook_data;
1761
1762   LttTime current_time = *((LttTime*)call_data);
1763
1764   TimeWindow time_window =
1765             lttvwindow_get_time_window(resourceview_data->tab);
1766
1767   LttTime time_begin = time_window.start_time;
1768   LttTime width = time_window.time_width;
1769   LttTime half_width;
1770   {
1771     guint64 time_ll = ltt_time_to_uint64(width);
1772     time_ll = time_ll >> 1; /* divide by two */
1773     half_width = ltt_time_from_uint64(time_ll);
1774   }
1775   LttTime time_end = ltt_time_add(time_begin, width);
1776
1777   LttvTraceset * ts = lttvwindow_get_traceset(resourceview_data->tab);
1778
1779   TimeInterval time_span = lttv_traceset_get_time_span_real(ts);
1780   LttTime trace_start = time_span.start_time;
1781   LttTime trace_end = time_span.end_time;
1782
1783   g_info("New current time HOOK : %lu, %lu", current_time.tv_sec,
1784               current_time.tv_nsec);
1785
1786   /* If current time is inside time interval, just move the highlight
1787    * bar */
1788
1789   /* Else, we have to change the time interval. We have to tell it
1790    * to the main window. */
1791   /* The time interval change will take care of placing the current
1792    * time at the center of the visible area, or nearest possible if we are
1793    * at one end of the trace. */
1794
1795
1796   if(ltt_time_compare(current_time, time_begin) < 0)
1797   {
1798     TimeWindow new_time_window;
1799
1800     if(ltt_time_compare(current_time,
1801           ltt_time_add(trace_start,half_width)) < 0)
1802       time_begin = trace_start;
1803     else
1804       time_begin = ltt_time_sub(current_time,half_width);
1805
1806     new_time_window.start_time = time_begin;
1807     new_time_window.time_width = width;
1808     new_time_window.time_width_double = ltt_time_to_double(width);
1809     new_time_window.end_time = ltt_time_add(time_begin, width);
1810
1811     lttvwindow_report_time_window(resourceview_data->tab, new_time_window);
1812   }
1813   else if(ltt_time_compare(current_time, time_end) > 0)
1814   {
1815     TimeWindow new_time_window;
1816
1817     if(ltt_time_compare(current_time, ltt_time_sub(trace_end, half_width)) > 0)
1818       time_begin = ltt_time_sub(trace_end,width);
1819     else
1820       time_begin = ltt_time_sub(current_time,half_width);
1821
1822     new_time_window.start_time = time_begin;
1823     new_time_window.time_width = width;
1824     new_time_window.time_width_double = ltt_time_to_double(width);
1825     new_time_window.end_time = ltt_time_add(time_begin, width);
1826
1827     lttvwindow_report_time_window(resourceview_data->tab, new_time_window);
1828
1829   }
1830   gtk_widget_queue_draw(resourceview_data->drawing->drawing_area);
1831
1832   /* Update directly when scrolling */
1833   gdk_window_process_updates(resourceview_data->drawing->drawing_area->window,
1834       TRUE);
1835
1836   return 0;
1837 }
1838
1839 typedef struct _ClosureData {
1840   EventsRequest *events_request;
1841   LttTime end_time;
1842   guint x_end;
1843 } ClosureData;
1844
1845 /* Draw line until end of the screen */
1846
1847 void draw_closure(gpointer key, gpointer value, gpointer user_data)
1848 {
1849   ResourceUniqueNumeric *process_info = (ResourceUniqueNumeric*)key;
1850   HashedResourceData *hashed_process_data = (HashedResourceData*)value;
1851   ClosureData *closure_data = (ClosureData*)user_data;
1852
1853   EventsRequest *events_request = closure_data->events_request;
1854   ControlFlowData *resourceview_data = events_request->viewer_data;
1855   LttvTraceset *ts = lttvwindow_get_traceset(resourceview_data->tab);
1856
1857   LttTime evtime = closure_data->end_time;
1858
1859   gboolean dodraw = TRUE;
1860
1861   if(hashed_process_data->type == RV_RESOURCE_MACHINE)
1862         return;
1863
1864   {
1865     /* For the process */
1866     /* First, check if the current process is in the state computation
1867      * process list. If it is there, that means we must add it right now and
1868      * draw items from the beginning of the read for it. If it is not
1869      * present, it's a new process and it was not present : it will
1870      * be added after the state update.  */
1871 #ifdef EXTRA_CHECK
1872     g_assert(lttv_traceset_number(tsc->ts) > 0);
1873 #endif //EXTRA_CHECK
1874     //TODO Fdeslauriers 2012-07-17: adapt for multiple traces
1875     LttvTrace *trace = lttv_traceset_get(ts,0);
1876     LttvTraceState *ts = trace->state;
1877
1878     /* Only draw for processes that are currently in the trace states */
1879
1880 #ifdef EXTRA_CHECK
1881     /* Should be alike when background info is ready */
1882     if(resourceview_data->background_info_waiting==0)
1883         g_assert(ltt_time_compare(process->creation_time,
1884                                   process_info->birth) == 0);
1885 #endif //EXTRA_CHECK
1886
1887     /* Now, the process is in the state hash and our own process hash.
1888      * We definitely can draw the items related to the ending state.
1889      */
1890
1891     if(unlikely(ltt_time_compare(hashed_process_data->next_good_time,
1892                           evtime) <= 0))
1893     {
1894       TimeWindow time_window =
1895         lttvwindow_get_time_window(resourceview_data->tab);
1896
1897 #ifdef EXTRA_CHECK
1898       if(ltt_time_compare(evtime, time_window.start_time) == -1
1899             || ltt_time_compare(evtime, time_window.end_time) == 1)
1900                 return;
1901 #endif //EXTRA_CHECK
1902       Drawing_t *drawing = resourceview_data->drawing;
1903       guint width = drawing->width;
1904
1905       guint x = closure_data->x_end;
1906
1907       DrawContext draw_context;
1908
1909       /* Now create the drawing context that will be used to draw
1910        * items related to the last state. */
1911       draw_context.drawable = hashed_process_data->pixmap;
1912       draw_context.gc = drawing->gc;
1913       draw_context.pango_layout = drawing->pango_layout;
1914       draw_context.drawinfo.end.x = x;
1915
1916       draw_context.drawinfo.y.over = 1;
1917       draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
1918       draw_context.drawinfo.y.under = hashed_process_data->height;
1919
1920       draw_context.drawinfo.start.offset.over = 0;
1921       draw_context.drawinfo.start.offset.middle = 0;
1922       draw_context.drawinfo.start.offset.under = 0;
1923       draw_context.drawinfo.end.offset.over = 0;
1924       draw_context.drawinfo.end.offset.middle = 0;
1925       draw_context.drawinfo.end.offset.under = 0;
1926 #if 0
1927       /* Jump over draw if we are at the same x position */
1928       if(x == hashed_process_data->x.over)
1929       {
1930         /* jump */
1931       } else {
1932         draw_context.drawinfo.start.x = hashed_process_data->x.over;
1933         /* Draw the line */
1934         PropertiesLine prop_line = prepare_execmode_line(process);
1935         draw_line((void*)&prop_line, (void*)&draw_context);
1936
1937         hashed_process_data->x.over = x;
1938       }
1939 #endif //0
1940
1941       if(unlikely(x == hashed_process_data->x.middle &&
1942           hashed_process_data->x.middle_used)) {
1943 #if 0 /* do not mark closure : not missing information */
1944       if(hashed_process_data->x.middle_marked == FALSE) {
1945         /* Draw collision indicator */
1946         gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
1947         gdk_draw_point(drawing->pixmap,
1948                        drawing->gc,
1949                        x,
1950                        y+(height/2)-3);
1951         hashed_process_data->x.middle_marked = TRUE;
1952       }
1953 #endif //0
1954         /* Jump */
1955       } else {
1956         draw_context.drawinfo.start.x = hashed_process_data->x.middle;
1957         /* Draw the line */
1958         if(dodraw) {
1959           PropertiesLine prop_line;
1960           prop_line.line_width = STATE_LINE_WIDTH;
1961           prop_line.style = GDK_LINE_SOLID;
1962           prop_line.y = MIDDLE;
1963           if(hashed_process_data->type == RV_RESOURCE_CPU)
1964             cpu_set_line_color(&prop_line, &ts->cpu_states[process_info->id]);
1965           else if(hashed_process_data->type == RV_RESOURCE_IRQ)
1966             irq_set_line_color(&prop_line, &ts->irq_states[process_info->id]);
1967           else if(hashed_process_data->type == RV_RESOURCE_SOFT_IRQ)
1968             soft_irq_set_line_color(&prop_line, &ts->soft_irq_states[process_info->id]);
1969           else if(hashed_process_data->type == RV_RESOURCE_TRAP)
1970             trap_set_line_color(&prop_line, &ts->trap_states[process_info->id]);
1971           else if(hashed_process_data->type == RV_RESOURCE_BDEV) {
1972             gint devcode_gint = process_info->id;
1973             LttvBdevState *bdev = g_hash_table_lookup(ts->bdev_states, &devcode_gint);
1974             // the lookup may return null; bdev_set_line_color must act appropriately
1975             bdev_set_line_color(&prop_line, bdev);
1976           }
1977
1978           draw_line((void*)&prop_line, (void*)&draw_context);
1979         }
1980
1981          /* become the last x position */
1982         if(likely(x != hashed_process_data->x.middle)) {
1983           hashed_process_data->x.middle = x;
1984           /* but don't use the pixel */
1985           hashed_process_data->x.middle_used = FALSE;
1986
1987           /* Calculate the next good time */
1988           convert_pixels_to_time(width, x+1, time_window,
1989                                 &hashed_process_data->next_good_time);
1990         }
1991       }
1992     }
1993   }
1994 }
1995
1996 int before_chunk(void *hook_data, void *call_data)
1997 {
1998   EventsRequest *events_request = (EventsRequest*)hook_data;
1999   LttvTraceset *ts = (LttvTraceset*)call_data;
2000
2001 #if 0
2002   /* Deactivate sort */
2003   gtk_tree_sortable_set_sort_column_id(
2004       GTK_TREE_SORTABLE(cfd->process_list->list_store),
2005       TRACE_COLUMN,
2006       GTK_SORT_ASCENDING);
2007 #endif //0
2008   drawing_chunk_begin(events_request, ts);
2009
2010   return 0;
2011 }
2012
2013 /* before_request
2014  *
2015  * This gets executed just before an events request is executed
2016  */
2017
2018 int before_request(void *hook_data, void *call_data)
2019 {
2020   EventsRequest *events_request = (EventsRequest*)hook_data;
2021
2022   drawing_data_request_begin(events_request);
2023
2024   return 0;
2025 }
2026
2027 void draw_closing_lines(ControlFlowData *resourceview_data,
2028                         EventsRequest* events_request)
2029 {
2030  LttTime end_time = events_request->end_time;
2031   ClosureData closure_data;
2032   closure_data.events_request = events_request;
2033   closure_data.end_time = end_time;
2034
2035
2036   TimeWindow time_window =
2037           lttvwindow_get_time_window(resourceview_data->tab);
2038   guint width = resourceview_data->drawing->width;
2039   convert_time_to_pixels(
2040             time_window,
2041             end_time,
2042             width,
2043             &closure_data.x_end);
2044
2045   guint i;
2046   /* Draw last items */
2047   for(i=0; i<RV_RESOURCE_COUNT; i++) {
2048     g_hash_table_foreach(resourcelist_get_resource_hash_table(resourceview_data, i), draw_closure,
2049                         (void*)&closure_data);
2050   }
2051
2052   /* Request expose */
2053   drawing_request_expose(events_request, end_time);
2054
2055 }
2056 /*
2057  * after request is necessary in addition of after chunk in order to draw
2058  * lines until the end of the screen. after chunk just draws lines until
2059  * the last event.
2060  *
2061  * for each process
2062  *    draw closing line
2063  *    expose
2064  */
2065 int after_request(void *hook_data, void *call_data)
2066 {
2067
2068   EventsRequest *events_request = (EventsRequest*)hook_data;
2069   ControlFlowData *resourceview_data = events_request->viewer_data;
2070
2071   draw_closing_lines(resourceview_data, events_request);
2072
2073   return 0;
2074 }
2075
2076 /*
2077  * for each process
2078  *    draw closing line
2079  * expose
2080  */
2081 int after_chunk(void *hook_data, void *call_data)
2082 {
2083   EventsRequest *events_request = (EventsRequest*)hook_data;
2084   ControlFlowData *resourceview_data = events_request->viewer_data;
2085   LttvTraceset *ts = (LttvTraceset*)call_data;
2086
2087   LttTime end_time;
2088
2089   ProcessList *process_list = resourceview_data->process_list;
2090   guint i;
2091   guint nb_trace = lttv_traceset_number(ts);
2092
2093   /* Only execute when called for the first trace's events request */
2094   if(!process_list->current_hash_data)
2095           return 0;
2096
2097   for(i = 0 ; i < nb_trace ; i++) {
2098     g_free(process_list->current_hash_data[i]);
2099   }
2100   g_free(process_list->current_hash_data);
2101   process_list->current_hash_data = NULL;
2102 #ifdef BABEL_CLEANUP
2103   if(tfc != NULL)
2104     end_time = LTT_TIME_MIN(tfc->timestamp, events_request->end_time);
2105   else /* end of traceset, or position now out of request : end */
2106     end_time = events_request->end_time;
2107 #endif
2108   draw_closing_lines(resourceview_data, events_request);
2109
2110   return 0;
2111 }
2112
2113 /* after_statedump_end
2114  *
2115  * @param hook_data ControlFlowData structure of the viewer.
2116  * @param call_data Event context.
2117  *
2118  * This function adds items to be drawn in a queue for each process.
2119  *
2120  */
2121 int before_statedump_end(void *hook_data, void *call_data)
2122 {
2123   LttvEvent *event;
2124
2125   event = (LttvEvent *) call_data;
2126
2127   if (strcmp(lttv_traceset_get_name_from_event(event),"lttng_statedump_end") != 0)
2128         return FALSE;
2129
2130   ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
2131
2132
2133   LttvTraceState *ts = event->state;
2134
2135
2136   gint i;
2137
2138 #ifdef BABEL_CLEANUP
2139
2140   LttvFilter *filter = resourceview_data->filter;
2141   if(filter != NULL && filter->head != NULL)
2142     if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
2143           tfc->t_context->t,tfc,NULL,NULL))
2144       return FALSE;
2145 #endif
2146
2147   LttTime evtime = lttv_event_get_timestamp(event);
2148
2149   ClosureData closure_data;
2150   //TODO ybrosseau 2013-03-27: Fake and event_request.
2151   //   We need to change the API of drawing_request_expose to ask
2152   //   For and control flow data only.
2153   EventsRequest events_request;
2154   events_request.viewer_data = resourceview_data;
2155   closure_data.events_request = &events_request;
2156   closure_data.end_time = evtime;
2157
2158   TimeWindow time_window =
2159           lttvwindow_get_time_window(resourceview_data->tab);
2160   guint width = resourceview_data->drawing->width;
2161   convert_time_to_pixels(
2162             time_window,
2163             evtime,
2164             width,
2165             &closure_data.x_end);
2166
2167   /* Draw last items */
2168
2169   for(i=0; i<RV_RESOURCE_COUNT; i++) {
2170     g_hash_table_foreach(resourcelist_get_resource_hash_table(resourceview_data, i), draw_closure,
2171                         (void*)&closure_data);
2172   }
2173 #if 0
2174   /* Reactivate sort */
2175   gtk_tree_sortable_set_sort_column_id(
2176       GTK_TREE_SORTABLE(resourceview_data->process_list->list_store),
2177       GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
2178       GTK_SORT_ASCENDING);
2179
2180   update_index_to_pixmap(resourceview_data->process_list);
2181   /* Request a full expose : drawing scrambled */
2182   gtk_widget_queue_draw(resourceview_data->drawing->drawing_area);
2183 #endif //0
2184   /* Request expose (updates damages zone also) */
2185   drawing_request_expose(&events_request, evtime);
2186
2187   return 0;
2188
2189 }