move all projects into the trunk directory
[lttv.git] / ltt / branches / poly / lttv / modules / gui / resourceview / eventhooks.c
diff --git a/ltt/branches/poly/lttv/modules/gui/resourceview/eventhooks.c b/ltt/branches/poly/lttv/modules/gui/resourceview/eventhooks.c
deleted file mode 100644 (file)
index 6c74bdb..0000000
+++ /dev/null
@@ -1,2225 +0,0 @@
-/* This file is part of the Linux Trace Toolkit viewer
- * Copyright (C) 2003-2004 Mathieu Desnoyers
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License Version 2 as
- * published by the Free Software Foundation;
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, 
- * MA 02111-1307, USA.
- */
-
-
-/*****************************************************************************
- *                       Hooks to be called by the main window               *
- *****************************************************************************/
-
-
-/* Event hooks are the drawing hooks called during traceset read. They draw the
- * icons, text, lines and background color corresponding to the events read.
- *
- * Two hooks are used for drawing : before_schedchange and after_schedchange hooks. The
- * before_schedchange is called before the state update that occurs with an event and
- * the after_schedchange hook is called after this state update.
- *
- * The before_schedchange hooks fulfill the task of drawing the visible objects that
- * corresponds to the data accumulated by the after_schedchange hook.
- *
- * The after_schedchange hook accumulates the data that need to be shown on the screen
- * (items) into a queue. Then, the next before_schedchange hook will draw what that
- * queue contains. That's the Right Way (TM) of drawing items on the screen,
- * because we need to draw the background first (and then add icons, text, ...
- * over it), but we only know the length of a background region once the state
- * corresponding to it is over, which happens to be at the next before_schedchange
- * hook.
- *
- * We also have a hook called at the end of a chunk to draw the information left
- * undrawn in each process queue. We use the current time as end of
- * line/background.
- */
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-//#define PANGO_ENABLE_BACKEND
-#include <gtk/gtk.h>
-#include <gdk/gdk.h>
-#include <glib.h>
-#include <assert.h>
-#include <string.h>
-#include <stdio.h>
-
-//#include <pango/pango.h>
-
-#include <ltt/event.h>
-#include <ltt/time.h>
-#include <ltt/trace.h>
-
-#include <lttv/lttv.h>
-#include <lttv/hook.h>
-#include <lttv/state.h>
-#include <lttvwindow/lttvwindow.h>
-#include <lttvwindow/lttvwindowtraces.h>
-#include <lttvwindow/support.h>
-
-
-#include "eventhooks.h"
-#include "cfv.h"
-#include "processlist.h"
-#include "drawing.h"
-
-
-#define MAX_PATH_LEN 256
-#define STATE_LINE_WIDTH 6
-#define COLLISION_POSITION(height) (((height - STATE_LINE_WIDTH)/2) -3)
-
-extern GSList *g_legend_list;
-
-
-/* Action to do when background computation completed.
- *
- * Wait for all the awaited computations to be over.
- */
-
-static gint background_ready(void *hook_data, void *call_data)
-{
-  ControlFlowData *resourceview_data = (ControlFlowData *)hook_data;
-  LttvTrace *trace = (LttvTrace*)call_data;
-
-  resourceview_data->background_info_waiting--;
-  
-  if(resourceview_data->background_info_waiting == 0) {
-    g_message("control flow viewer : background computation data ready.");
-
-    drawing_clear(resourceview_data->drawing);
-    processlist_clear(resourceview_data->process_list);
-    gtk_widget_set_size_request(
-      resourceview_data->drawing->drawing_area,
-      -1, processlist_get_height(resourceview_data->process_list));
-    redraw_notify(resourceview_data, NULL);
-  }
-
-  return 0;
-}
-
-
-/* Request background computation. Verify if it is in progress or ready first.
- * Only for each trace in the tab's traceset.
- */
-static void request_background_data(ControlFlowData *resourceview_data)
-{
-  LttvTracesetContext * tsc =
-        lttvwindow_get_traceset_context(resourceview_data->tab);
-  gint num_traces = lttv_traceset_number(tsc->ts);
-  gint i;
-  LttvTrace *trace;
-  LttvTraceState *tstate;
-
-  LttvHooks *background_ready_hook = 
-    lttv_hooks_new();
-  lttv_hooks_add(background_ready_hook, background_ready, resourceview_data,
-      LTTV_PRIO_DEFAULT);
-  resourceview_data->background_info_waiting = 0;
-  
-  for(i=0;i<num_traces;i++) {
-    trace = lttv_traceset_get(tsc->ts, i);
-    tstate = LTTV_TRACE_STATE(tsc->traces[i]);
-
-    if(lttvwindowtraces_get_ready(g_quark_from_string("state"),trace)==FALSE
-        && !tstate->has_precomputed_states) {
-
-      if(lttvwindowtraces_get_in_progress(g_quark_from_string("state"),
-                                          trace) == FALSE) {
-        /* We first remove requests that could have been done for the same
-         * information. Happens when two viewers ask for it before servicing
-         * starts.
-         */
-        if(!lttvwindowtraces_background_request_find(trace, "state"))
-          lttvwindowtraces_background_request_queue(
-              main_window_get_widget(resourceview_data->tab), trace, "state");
-        lttvwindowtraces_background_notify_queue(resourceview_data,
-                                                 trace,
-                                                 ltt_time_infinite,
-                                                 NULL,
-                                                 background_ready_hook);
-        resourceview_data->background_info_waiting++;
-      } else { /* in progress */
-      
-        lttvwindowtraces_background_notify_current(resourceview_data,
-                                                   trace,
-                                                   ltt_time_infinite,
-                                                   NULL,
-                                                   background_ready_hook);
-        resourceview_data->background_info_waiting++;
-      }
-    } else {
-      /* Data ready. By its nature, this viewer doesn't need to have
-       * its data ready hook called there, because a background
-       * request is always linked with a redraw.
-       */
-    }
-  }
-
-  lttv_hooks_destroy(background_ready_hook);
-}
-
-
-/**
- * Event Viewer's constructor hook
- *
- * This constructor is given as a parameter to the menuitem and toolbar button
- * registration. It creates the list.
- * @param tab A pointer to the parent tab.
- * @return The widget created.
- */
-GtkWidget *
-h_resourceview(LttvPlugin *plugin)
-{
-  LttvPluginTab *ptab = LTTV_PLUGIN_TAB(plugin);
-  Tab *tab = ptab->tab;
-  g_info("h_guicontrolflow, %p", tab);
-  ControlFlowData *resourceview_data = resourceview(ptab);
-  
-  resourceview_data->tab = tab;
-  
-  // Unreg done in the GuiControlFlow_Destructor
-  lttvwindow_register_traceset_notify(tab,
-        traceset_notify,
-        resourceview_data);
-    
-  lttvwindow_register_time_window_notify(tab,
-                                         update_time_window_hook,
-                                         resourceview_data);
-  lttvwindow_register_current_time_notify(tab,
-                                          update_current_time_hook,
-                                          resourceview_data);
-  lttvwindow_register_redraw_notify(tab,
-                                    redraw_notify,
-                                    resourceview_data);
-  lttvwindow_register_continue_notify(tab,
-                                      continue_notify,
-                                      resourceview_data);
-  request_background_data(resourceview_data);
-  
-
-  return guicontrolflow_get_widget(resourceview_data) ;
-  
-}
-
-void legend_destructor(GtkWindow *legend)
-{
-  g_legend_list = g_slist_remove(g_legend_list, legend);
-}
-
-/* Create a popup legend */
-GtkWidget *
-h_legend(LttvPlugin *plugin)
-{
-  LttvPluginTab *ptab = LTTV_PLUGIN_TAB(plugin);
-  Tab *tab = ptab->tab;
-  g_info("h_legend, %p", tab);
-
-  GtkWindow *legend = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
-  g_legend_list = g_slist_append(
-      g_legend_list,
-      legend);
-  g_object_set_data_full(
-      G_OBJECT(legend),
-      "legend",
-      legend,
-      (GDestroyNotify)legend_destructor);
-  
-  gtk_window_set_title(legend, "Control Flow View Legend");
-
-  GtkWidget *pixmap = create_pixmap(GTK_WIDGET(legend), "lttv-color-list.png");
-  
-  gtk_container_add(GTK_CONTAINER(legend), GTK_WIDGET(pixmap));
-
-  gtk_widget_show(GTK_WIDGET(pixmap));
-  gtk_widget_show(GTK_WIDGET(legend));
-  
-
-  return NULL; /* This is a popup window */
-}
-
-
-int event_selected_hook(void *hook_data, void *call_data)
-{
-  ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
-  guint *event_number = (guint*) call_data;
-
-  g_debug("DEBUG : event selected by main window : %u", *event_number);
-  
-  return 0;
-}
-
-static void cpu_set_line_color(PropertiesLine *prop_line, LttvCPUState *s)
-{
-  GQuark present_state;
-
-  if(s->mode_stack->len == 0)
-    present_state = LTTV_CPU_UNKNOWN;
-  else
-    present_state = ((GQuark*)s->mode_stack->data)[s->mode_stack->len-1];
-
-  if(present_state == LTTV_CPU_IDLE) {
-    prop_line->color = drawing_colors_cpu[COL_CPU_IDLE];
-  }
-  else if(present_state == LTTV_CPU_BUSY) {
-    prop_line->color = drawing_colors_cpu[COL_CPU_BUSY];
-  }
-  else if(present_state == LTTV_CPU_IRQ) {
-    prop_line->color = drawing_colors_cpu[COL_CPU_IRQ];
-  }
-  else if(present_state == LTTV_CPU_SOFT_IRQ) {
-    prop_line->color = drawing_colors_cpu[COL_CPU_SOFT_IRQ];
-  }
-  else if(present_state == LTTV_CPU_TRAP) {
-    prop_line->color = drawing_colors_cpu[COL_CPU_TRAP];
-  } else {
-    prop_line->color = drawing_colors_cpu[COL_CPU_UNKNOWN];
-  }
-}
-
-static void irq_set_line_color(PropertiesLine *prop_line, LttvIRQState *s)
-{
-  GQuark present_state;
-  if(s->mode_stack->len == 0)
-    present_state = LTTV_IRQ_UNKNOWN;
-  else
-    present_state = ((GQuark*)s->mode_stack->data)[s->mode_stack->len-1];
-
-  if(present_state == LTTV_IRQ_IDLE) {
-    prop_line->color = drawing_colors_irq[COL_IRQ_IDLE];
-  }
-  else if(present_state == LTTV_IRQ_BUSY) {
-    prop_line->color = drawing_colors_irq[COL_IRQ_BUSY];
-  }
-  else {
-    prop_line->color = drawing_colors_irq[COL_IRQ_UNKNOWN];
-  }
-}
-
-static void soft_irq_set_line_color(PropertiesLine *prop_line, LttvSoftIRQState *s)
-{
-  GQuark present_state;
-  if(s->running)
-    prop_line->color = drawing_colors_soft_irq[COL_SOFT_IRQ_BUSY];
-  else if(s->pending)
-    prop_line->color = drawing_colors_soft_irq[COL_SOFT_IRQ_PENDING];
-  else
-    prop_line->color = drawing_colors_soft_irq[COL_SOFT_IRQ_IDLE];
-}
-
-static void trap_set_line_color(PropertiesLine *prop_line, LttvTrapState *s)
-{
-  GQuark present_state;
-  if(s->running == 0)
-    prop_line->color = drawing_colors_trap[COL_TRAP_IDLE];
-  else
-    prop_line->color = drawing_colors_trap[COL_TRAP_BUSY];
-}
-
-static void bdev_set_line_color(PropertiesLine *prop_line, LttvBdevState *s)
-{
-  GQuark present_state;
-  if(s == 0 || s->mode_stack->len == 0)
-    present_state = LTTV_BDEV_UNKNOWN;
-  else
-    present_state = ((GQuark*)s->mode_stack->data)[s->mode_stack->len-1];
-
-  if(present_state == LTTV_BDEV_IDLE) {
-    prop_line->color = drawing_colors_bdev[COL_BDEV_IDLE];
-  }
-  else if(present_state == LTTV_BDEV_BUSY_READING) {
-    prop_line->color = drawing_colors_bdev[COL_BDEV_BUSY_READING];
-  }
-  else if(present_state == LTTV_BDEV_BUSY_WRITING) {
-    prop_line->color = drawing_colors_bdev[COL_BDEV_BUSY_WRITING];
-  }
-  else {
-    prop_line->color = drawing_colors_bdev[COL_BDEV_UNKNOWN];
-  }
-}
-
-/* before_schedchange_hook
- * 
- * This function basically draw lines and icons. Two types of lines are drawn :
- * one small (3 pixels?) representing the state of the process and the second
- * type is thicker (10 pixels?) representing on which CPU a process is running
- * (and this only in running state).
- *
- * Extremums of the lines :
- * x_min : time of the last event context for this process kept in memory.
- * x_max : time of the current event.
- * y : middle of the process in the process list. The process is found in the
- * list, therefore is it's position in pixels.
- *
- * The choice of lines'color is defined by the context of the last event for this
- * process.
- */
-
-
-int before_schedchange_hook(void *hook_data, void *call_data)
-{
-  LttvTraceHook *th = (LttvTraceHook*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)th->hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-  gint target_pid_saved = tfc->target_pid;
-
-  LttTime evtime = ltt_event_time(e);
-  LttvFilter *filter = resourceview_data->filter;
-
-  /* we are in a schedchange, before the state update. We must draw the
-   * items corresponding to the state before it changes : now is the right
-   * time to do it.
-   */
-
-  guint pid_out;
-  guint pid_in;
-  pid_out = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
-  pid_in = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 1));
-// TODO: can't we reenable this? pmf
-//  if(pid_in != 0 && pid_out != 0) {
-//    /* not a transition to/from idle */
-//    return 0;
-//  }
-
-  tfc->target_pid = pid_out;
-
-  guint cpu = tfs->cpu;
-
-  guint trace_num = ts->parent.index;
-   /* Add process to process list (if not present) */
-  guint pl_height = 0;
-  HashedResourceData *hashed_process_data = NULL;
-  ProcessList *process_list = resourceview_data->process_list;
-  
-  hashed_process_data = resourcelist_obtain_cpu(resourceview_data, trace_num, cpu);
-  
-  /* Now, the process is in the state hash and our own process hash.
-   * We definitely can draw the items related to the ending state.
-   */
-  
-  if(ltt_time_compare(hashed_process_data->next_good_time,
-                      evtime) > 0)
-  {
-    if(hashed_process_data->x.middle_marked == FALSE) {
-  
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(resourceview_data->tab);
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-        return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = resourceview_data->drawing;
-      guint width = drawing->width;
-      guint x;
-      convert_time_to_pixels(
-                time_window,
-                evtime,
-                width,
-                &x);
-
-      /* Draw collision indicator */
-      gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-      gdk_draw_point(hashed_process_data->pixmap,
-                     drawing->gc,
-                     x,
-                     COLLISION_POSITION(hashed_process_data->height));
-      hashed_process_data->x.middle_marked = TRUE;
-    }
-  } else {
-    TimeWindow time_window = 
-      lttvwindow_get_time_window(resourceview_data->tab);
-#ifdef EXTRA_CHECK
-    if(ltt_time_compare(evtime, time_window.start_time) == -1
-              || ltt_time_compare(evtime, time_window.end_time) == 1)
-      return;
-#endif //EXTRA_CHECK
-    Drawing_t *drawing = resourceview_data->drawing;
-    guint width = drawing->width;
-    guint x;
-    convert_time_to_pixels(
-              time_window,
-              evtime,
-              width,
-              &x);
-
-    /* Jump over draw if we are at the same x position */
-    if(x == hashed_process_data->x.middle &&
-         hashed_process_data->x.middle_used)
-    {
-      if(hashed_process_data->x.middle_marked == FALSE) {
-        /* Draw collision indicator */
-        gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-        gdk_draw_point(hashed_process_data->pixmap,
-                       drawing->gc,
-                       x,
-                       COLLISION_POSITION(hashed_process_data->height));
-        hashed_process_data->x.middle_marked = TRUE;
-      }
-      /* jump */
-    } else {
-      DrawContext draw_context;
-
-      /* Now create the drawing context that will be used to draw
-       * items related to the last state. */
-      draw_context.drawable = hashed_process_data->pixmap;
-      draw_context.gc = drawing->gc;
-      draw_context.pango_layout = drawing->pango_layout;
-      draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-      draw_context.drawinfo.end.x = x;
-
-      draw_context.drawinfo.y.over = 1;
-      draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-      draw_context.drawinfo.y.under = hashed_process_data->height;
-
-      draw_context.drawinfo.start.offset.over = 0;
-      draw_context.drawinfo.start.offset.middle = 0;
-      draw_context.drawinfo.start.offset.under = 0;
-      draw_context.drawinfo.end.offset.over = 0;
-      draw_context.drawinfo.end.offset.middle = 0;
-      draw_context.drawinfo.end.offset.under = 0;
-
-      {
-        /* Draw the line */
-        //PropertiesLine prop_line = prepare_s_e_line(process);
-        PropertiesLine prop_line;
-        prop_line.line_width = STATE_LINE_WIDTH;
-        prop_line.style = GDK_LINE_SOLID;
-        prop_line.y = MIDDLE;
-        cpu_set_line_color(&prop_line, tfs->cpu_state);
-        draw_line((void*)&prop_line, (void*)&draw_context);
-
-      }
-      /* become the last x position */
-      hashed_process_data->x.middle = x;
-      hashed_process_data->x.middle_used = TRUE;
-      hashed_process_data->x.middle_marked = FALSE;
-
-      /* Calculate the next good time */
-      convert_pixels_to_time(width, x+1, time_window,
-                             &hashed_process_data->next_good_time);
-    }
-  }
-
-  return 0;
-}
-
-/* after_schedchange_hook
- * 
- * The draw after hook is called by the reading API to have a
- * particular event drawn on the screen.
- * @param hook_data ControlFlowData structure of the viewer. 
- * @param call_data Event context.
- *
- * This function adds items to be drawn in a queue for each process.
- * 
- */
-int after_schedchange_hook(void *hook_data, void *call_data)
-{
-  LttvTraceHook *th = (LttvTraceHook*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)th->hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-  LttEvent *e;
-
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttvFilter *filter = resourceview_data->filter;
-  if(filter != NULL && filter->head != NULL)
-    if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
-          tfc->t_context->t,tfc,NULL,NULL))
-      return FALSE;
-
-  LttTime evtime = ltt_event_time(e);
-
-  /* Add process to process list (if not present) */
-  LttvProcessState *process_in;
-  LttTime birth;
-  guint pl_height = 0;
-  HashedResourceData *hashed_process_data_in = NULL;
-
-  ProcessList *process_list = resourceview_data->process_list;
-  
-  guint pid_in;
-  {
-    guint pid_out;
-    pid_out = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
-    pid_in = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 1));
-  }
-
-
-  /* Find process pid_in in the list... */
-  //process_in = lttv_state_find_process(ts, ANY_CPU, pid_in);
-  //process_in = tfs->process;
-  guint cpu = tfs->cpu;
-  guint trace_num = ts->parent.index;
-  process_in = ts->running_process[cpu];
-  /* It should exist, because we are after the state update. */
-#ifdef EXTRA_CHECK
-  g_assert(process_in != NULL);
-#endif //EXTRA_CHECK
-  birth = process_in->creation_time;
-
-  //hashed_process_data_in = processlist_get_process_data(process_list, cpuq, trace_num);
-  hashed_process_data_in = resourcelist_obtain_cpu(resourceview_data, trace_num, cpu);
-
-  /* Set the current process */
-  process_list->current_hash_data[trace_num][process_in->cpu] =
-                                             hashed_process_data_in;
-
-  if(ltt_time_compare(hashed_process_data_in->next_good_time,
-                          evtime) <= 0)
-  {
-    TimeWindow time_window = 
-    lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-    if(ltt_time_compare(evtime, time_window.start_time) == -1
-        || ltt_time_compare(evtime, time_window.end_time) == 1)
-            return;
-#endif //EXTRA_CHECK
-    Drawing_t *drawing = resourceview_data->drawing;
-    guint width = drawing->width;
-    guint new_x;
-    
-    convert_time_to_pixels(
-        time_window,
-        evtime,
-        width,
-        &new_x);
-
-    if(hashed_process_data_in->x.middle != new_x) {
-      hashed_process_data_in->x.middle = new_x;
-      hashed_process_data_in->x.middle_used = FALSE;
-      hashed_process_data_in->x.middle_marked = FALSE;
-    }
-  }
-  return 0;
-}
-
-/* before_execmode_hook
- * 
- * This function basically draw lines and icons. Two types of lines are drawn :
- * one small (3 pixels?) representing the state of the process and the second
- * type is thicker (10 pixels?) representing on which CPU a process is running
- * (and this only in running state).
- *
- * Extremums of the lines :
- * x_min : time of the last event context for this process kept in memory.
- * x_max : time of the current event.
- * y : middle of the process in the process list. The process is found in the
- * list, therefore is it's position in pixels.
- *
- * The choice of lines'color is defined by the context of the last event for this
- * process.
- */
-
-int before_execmode_hook(void *hook_data, void *call_data)
-{
-  LttvTraceHook *th = (LttvTraceHook*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)th->hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttTime evtime = ltt_event_time(e);
-
-  before_execmode_hook_irq(hook_data, call_data);
-  before_execmode_hook_soft_irq(hook_data, call_data);
-  before_execmode_hook_trap(hook_data, call_data);
-
-  /* we are in a execmode, before the state update. We must draw the
-   * items corresponding to the state before it changes : now is the right
-   * time to do it.
-   */
-  /* For the pid */
-  guint cpu = tfs->cpu;
-
-  guint trace_num = ts->parent.index;
-  LttvProcessState *process = ts->running_process[cpu];
-  g_assert(process != NULL);
-
-  /* Well, the process_out existed : we must get it in the process hash
-   * or add it, and draw its items.
-   */
-   /* Add process to process list (if not present) */
-  guint pl_height = 0;
-  HashedResourceData *hashed_process_data = NULL;
-  ProcessList *process_list = resourceview_data->process_list;
-
-  LttTime birth = process->creation_time;
-  if(likely(process_list->current_hash_data[trace_num][cpu] != NULL)) {
-    hashed_process_data = process_list->current_hash_data[trace_num][cpu];
-  } else {
-      hashed_process_data = resourcelist_obtain_cpu(resourceview_data, trace_num, cpu);
-
-    /* Set the current process */
-    process_list->current_hash_data[trace_num][process->cpu] =
-                                               hashed_process_data;
-  }
-
-  /* Now, the process is in the state hash and our own process hash.
-   * We definitely can draw the items related to the ending state.
-   */
-
-  if(likely(ltt_time_compare(hashed_process_data->next_good_time,
-                      evtime) > 0))
-  {
-    if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = resourceview_data->drawing;
-      guint width = drawing->width;
-      guint x;
-      convert_time_to_pixels(
-                time_window,
-                evtime,
-                width,
-                &x);
-
-      /* Draw collision indicator */
-      gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-      gdk_draw_point(hashed_process_data->pixmap,
-                     drawing->gc,
-                     x,
-                     COLLISION_POSITION(hashed_process_data->height));
-      hashed_process_data->x.middle_marked = TRUE;
-    }
-  }
-  else {
-    TimeWindow time_window = 
-      lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-    if(ltt_time_compare(evtime, time_window.start_time) == -1
-          || ltt_time_compare(evtime, time_window.end_time) == 1)
-              return;
-#endif //EXTRA_CHECK
-    Drawing_t *drawing = resourceview_data->drawing;
-    guint width = drawing->width;
-    guint x;
-
-    convert_time_to_pixels(
-        time_window,
-        evtime,
-        width,
-        &x);
-
-
-    /* Jump over draw if we are at the same x position */
-    if(unlikely(x == hashed_process_data->x.middle &&
-             hashed_process_data->x.middle_used))
-    {
-      if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-        /* Draw collision indicator */
-        gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-        gdk_draw_point(hashed_process_data->pixmap,
-                       drawing->gc,
-                       x,
-                       COLLISION_POSITION(hashed_process_data->height));
-        hashed_process_data->x.middle_marked = TRUE;
-      }
-      /* jump */
-    }
-    else {
-
-      DrawContext draw_context;
-      /* Now create the drawing context that will be used to draw
-       * items related to the last state. */
-      draw_context.drawable = hashed_process_data->pixmap;
-      draw_context.gc = drawing->gc;
-      draw_context.pango_layout = drawing->pango_layout;
-      draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-      draw_context.drawinfo.end.x = x;
-
-      draw_context.drawinfo.y.over = 1;
-      draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-      draw_context.drawinfo.y.under = hashed_process_data->height;
-
-      draw_context.drawinfo.start.offset.over = 0;
-      draw_context.drawinfo.start.offset.middle = 0;
-      draw_context.drawinfo.start.offset.under = 0;
-      draw_context.drawinfo.end.offset.over = 0;
-      draw_context.drawinfo.end.offset.middle = 0;
-      draw_context.drawinfo.end.offset.under = 0;
-
-      {
-        /* Draw the line */
-        PropertiesLine prop_line;
-        prop_line.line_width = STATE_LINE_WIDTH;
-        prop_line.style = GDK_LINE_SOLID;
-        prop_line.y = MIDDLE;
-        cpu_set_line_color(&prop_line, tfs->cpu_state);
-        draw_line((void*)&prop_line, (void*)&draw_context);
-      }
-      /* become the last x position */
-      hashed_process_data->x.middle = x;
-      hashed_process_data->x.middle_used = TRUE;
-      hashed_process_data->x.middle_marked = FALSE;
-
-      /* Calculate the next good time */
-      convert_pixels_to_time(width, x+1, time_window,
-                             &hashed_process_data->next_good_time);
-    }
-  }
-  
-  return 0;
-}
-
-int before_execmode_hook_irq(void *hook_data, void *call_data)
-{
-  LttvTraceHook *th = (LttvTraceHook*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)th->hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttTime evtime = ltt_event_time(e);
-
-  LttTrace *trace = tfc->t_context->t;
-
-  /* we are in a execmode, before the state update. We must draw the
-   * items corresponding to the state before it changes : now is the right
-   * time to do it.
-   */
-  /* For the pid */
-
-  guint64 irq;
-  guint cpu = tfs->cpu;
-
-  guint16 ev_id_entry = marker_get_id_from_info(trace, marker_get_info_from_name(trace, lttv_merge_facility_event_name(LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_ENTRY)));
-  guint16 ev_id_exit = marker_get_id_from_info(trace, marker_get_info_from_name(trace, lttv_merge_facility_event_name(LTT_FACILITY_KERNEL, LTT_EVENT_IRQ_EXIT)));
-  if(ev_id_entry == e->event_id) {
-    irq = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
-  }
-  else if(ev_id_exit == e->event_id) {
-    irq = ts->cpu_states[cpu].last_irq;
-  }
-  else {
-    return 0;
-  }
-
-  guint trace_num = ts->parent.index;
-
-  /* Well, the process_out existed : we must get it in the process hash
-   * or add it, and draw its items.
-   */
-   /* Add process to process list (if not present) */
-  guint pl_height = 0;
-  HashedResourceData *hashed_process_data = NULL;
-  ProcessList *process_list = resourceview_data->process_list;
-
-  hashed_process_data = resourcelist_obtain_irq(resourceview_data, trace_num, irq);
-  // TODO: fix this, it's ugly and slow:
-  GQuark name;
-  {
-    gchar *str;
-    str = g_strdup_printf("IRQ %llu [%s]", irq, (char*)g_quark_to_string(ts->irq_names[irq]));
-    name = g_quark_from_string(str);
-    g_free(str);
-  }
-  gtk_tree_store_set(resourceview_data->process_list->list_store, &hashed_process_data->y_iter, NAME_COLUMN, g_quark_to_string(name), -1);
-
-  /* Now, the process is in the state hash and our own process hash.
-   * We definitely can draw the items related to the ending state.
-   */
-
-  if(likely(ltt_time_compare(hashed_process_data->next_good_time,
-                      evtime) > 0))
-  {
-    if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = resourceview_data->drawing;
-      guint width = drawing->width;
-      guint x;
-      convert_time_to_pixels(
-                time_window,
-                evtime,
-                width,
-                &x);
-
-      /* Draw collision indicator */
-      gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-      gdk_draw_point(hashed_process_data->pixmap,
-                     drawing->gc,
-                     x,
-                     COLLISION_POSITION(hashed_process_data->height));
-      hashed_process_data->x.middle_marked = TRUE;
-    }
-  }
-  else {
-    TimeWindow time_window = 
-      lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-    if(ltt_time_compare(evtime, time_window.start_time) == -1
-          || ltt_time_compare(evtime, time_window.end_time) == 1)
-              return;
-#endif //EXTRA_CHECK
-    Drawing_t *drawing = resourceview_data->drawing;
-    guint width = drawing->width;
-    guint x;
-
-    convert_time_to_pixels(
-        time_window,
-        evtime,
-        width,
-        &x);
-
-
-    /* Jump over draw if we are at the same x position */
-    if(unlikely(x == hashed_process_data->x.middle &&
-             hashed_process_data->x.middle_used))
-    {
-      if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-        /* Draw collision indicator */
-        gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-        gdk_draw_point(hashed_process_data->pixmap,
-                       drawing->gc,
-                       x,
-                       COLLISION_POSITION(hashed_process_data->height));
-        hashed_process_data->x.middle_marked = TRUE;
-      }
-      /* jump */
-    }
-    else {
-
-      DrawContext draw_context;
-      /* Now create the drawing context that will be used to draw
-       * items related to the last state. */
-      draw_context.drawable = hashed_process_data->pixmap;
-      draw_context.gc = drawing->gc;
-      draw_context.pango_layout = drawing->pango_layout;
-      draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-      draw_context.drawinfo.end.x = x;
-
-      draw_context.drawinfo.y.over = 1;
-      draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-      draw_context.drawinfo.y.under = hashed_process_data->height;
-
-      draw_context.drawinfo.start.offset.over = 0;
-      draw_context.drawinfo.start.offset.middle = 0;
-      draw_context.drawinfo.start.offset.under = 0;
-      draw_context.drawinfo.end.offset.over = 0;
-      draw_context.drawinfo.end.offset.middle = 0;
-      draw_context.drawinfo.end.offset.under = 0;
-
-      {
-        /* Draw the line */
-        PropertiesLine prop_line;
-        prop_line.line_width = STATE_LINE_WIDTH;
-        prop_line.style = GDK_LINE_SOLID;
-        prop_line.y = MIDDLE;
-        irq_set_line_color(&prop_line, &ts->irq_states[irq]);
-        draw_line((void*)&prop_line, (void*)&draw_context);
-      }
-      /* become the last x position */
-      hashed_process_data->x.middle = x;
-      hashed_process_data->x.middle_used = TRUE;
-      hashed_process_data->x.middle_marked = FALSE;
-
-      /* Calculate the next good time */
-      convert_pixels_to_time(width, x+1, time_window,
-                             &hashed_process_data->next_good_time);
-    }
-  }
-  
-  return 0;
-}
-
-int before_execmode_hook_soft_irq(void *hook_data, void *call_data)
-{
-  LttvTraceHook *th = (LttvTraceHook*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)th->hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttTime evtime = ltt_event_time(e);
-
-  LttTrace *trace = tfc->t_context->t;
-
-  /* we are in a execmode, before the state update. We must draw the
-   * items corresponding to the state before it changes : now is the right
-   * time to do it.
-   */
-  /* For the pid */
-
-  guint64 softirq;
-  guint cpu = tfs->cpu;
-
-  guint16 ev_id_raise = marker_get_id_from_info(trace, marker_get_info_from_name(trace, lttv_merge_facility_event_name(LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_RAISE)));
-  guint16 ev_id_entry = marker_get_id_from_info(trace, marker_get_info_from_name(trace, lttv_merge_facility_event_name(LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_ENTRY)));
-  guint16 ev_id_exit = marker_get_id_from_info(trace, marker_get_info_from_name(trace, lttv_merge_facility_event_name(LTT_FACILITY_KERNEL, LTT_EVENT_SOFT_IRQ_EXIT)));
-  if(ev_id_entry == e->event_id || ev_id_raise == e->event_id) {
-    softirq = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
-  }
-  else if(ev_id_exit == e->event_id) {
-    softirq = ts->cpu_states[cpu].last_soft_irq;
-  }
-  else {
-    return 0;
-  }
-
-  guint trace_num = ts->parent.index;
-
-  /* Well, the process_out existed : we must get it in the process hash
-   * or add it, and draw its items.
-   */
-   /* Add process to process list (if not present) */
-  guint pl_height = 0;
-  HashedResourceData *hashed_process_data = NULL;
-  ProcessList *process_list = resourceview_data->process_list;
-
-  hashed_process_data = resourcelist_obtain_soft_irq(resourceview_data, trace_num, softirq);
-
-  /* Now, the process is in the state hash and our own process hash.
-   * We definitely can draw the items related to the ending state.
-   */
-
-  if(likely(ltt_time_compare(hashed_process_data->next_good_time,
-                      evtime) > 0))
-  {
-    if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = resourceview_data->drawing;
-      guint width = drawing->width;
-      guint x;
-      convert_time_to_pixels(
-                time_window,
-                evtime,
-                width,
-                &x);
-
-      /* Draw collision indicator */
-      gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-      gdk_draw_point(hashed_process_data->pixmap,
-                     drawing->gc,
-                     x,
-                     COLLISION_POSITION(hashed_process_data->height));
-      hashed_process_data->x.middle_marked = TRUE;
-    }
-  }
-  else {
-    TimeWindow time_window = 
-      lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-    if(ltt_time_compare(evtime, time_window.start_time) == -1
-          || ltt_time_compare(evtime, time_window.end_time) == 1)
-              return;
-#endif //EXTRA_CHECK
-    Drawing_t *drawing = resourceview_data->drawing;
-    guint width = drawing->width;
-    guint x;
-
-    convert_time_to_pixels(
-        time_window,
-        evtime,
-        width,
-        &x);
-
-
-    /* Jump over draw if we are at the same x position */
-    if(unlikely(x == hashed_process_data->x.middle &&
-             hashed_process_data->x.middle_used))
-    {
-      if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-        /* Draw collision indicator */
-        gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-        gdk_draw_point(hashed_process_data->pixmap,
-                       drawing->gc,
-                       x,
-                       COLLISION_POSITION(hashed_process_data->height));
-        hashed_process_data->x.middle_marked = TRUE;
-      }
-      /* jump */
-    }
-    else {
-
-      DrawContext draw_context;
-      /* Now create the drawing context that will be used to draw
-       * items related to the last state. */
-      draw_context.drawable = hashed_process_data->pixmap;
-      draw_context.gc = drawing->gc;
-      draw_context.pango_layout = drawing->pango_layout;
-      draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-      draw_context.drawinfo.end.x = x;
-
-      draw_context.drawinfo.y.over = 1;
-      draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-      draw_context.drawinfo.y.under = hashed_process_data->height;
-
-      draw_context.drawinfo.start.offset.over = 0;
-      draw_context.drawinfo.start.offset.middle = 0;
-      draw_context.drawinfo.start.offset.under = 0;
-      draw_context.drawinfo.end.offset.over = 0;
-      draw_context.drawinfo.end.offset.middle = 0;
-      draw_context.drawinfo.end.offset.under = 0;
-
-      {
-        /* Draw the line */
-        PropertiesLine prop_line;
-        prop_line.line_width = STATE_LINE_WIDTH;
-        prop_line.style = GDK_LINE_SOLID;
-        prop_line.y = MIDDLE;
-        soft_irq_set_line_color(&prop_line, &ts->soft_irq_states[softirq]);
-        draw_line((void*)&prop_line, (void*)&draw_context);
-      }
-      /* become the last x position */
-      hashed_process_data->x.middle = x;
-      hashed_process_data->x.middle_used = TRUE;
-      hashed_process_data->x.middle_marked = FALSE;
-
-      /* Calculate the next good time */
-      convert_pixels_to_time(width, x+1, time_window,
-                             &hashed_process_data->next_good_time);
-    }
-  }
-  
-  return 0;
-}
-
-int before_execmode_hook_trap(void *hook_data, void *call_data)
-{
-  LttvTraceHook *th = (LttvTraceHook*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)th->hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttTime evtime = ltt_event_time(e);
-
-  LttTrace *trace = tfc->t_context->t;
-
-  /* we are in a execmode, before the state update. We must draw the
-   * items corresponding to the state before it changes : now is the right
-   * time to do it.
-   */
-  /* For the pid */
-
-  guint64 trap;
-  guint cpu = tfs->cpu;
-
-  guint16 ev_id_entry = marker_get_id_from_info(trace, marker_get_info_from_name(trace, lttv_merge_facility_event_name(LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_TRAP_ENTRY)));
-  guint16 ev_id_exit = marker_get_id_from_info(trace, marker_get_info_from_name(trace, lttv_merge_facility_event_name(LTT_FACILITY_KERNEL_ARCH, LTT_EVENT_TRAP_EXIT)));
-  if(ev_id_entry == e->event_id) {
-    trap = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
-  }
-  else if(ev_id_exit == e->event_id) {
-    trap = ts->cpu_states[cpu].last_trap;
-  }
-  else {
-    return 0;
-  }
-
-  guint trace_num = ts->parent.index;
-
-  /* Well, the process_out existed : we must get it in the process hash
-   * or add it, and draw its items.
-   */
-   /* Add process to process list (if not present) */
-  guint pl_height = 0;
-  HashedResourceData *hashed_process_data = NULL;
-  ProcessList *process_list = resourceview_data->process_list;
-
-  hashed_process_data = resourcelist_obtain_trap(resourceview_data, trace_num, trap);
-
-  /* Now, the process is in the state hash and our own process hash.
-   * We definitely can draw the items related to the ending state.
-   */
-
-  if(likely(ltt_time_compare(hashed_process_data->next_good_time,
-                      evtime) > 0))
-  {
-    if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = resourceview_data->drawing;
-      guint width = drawing->width;
-      guint x;
-      convert_time_to_pixels(
-                time_window,
-                evtime,
-                width,
-                &x);
-
-      /* Draw collision indicator */
-      gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-      gdk_draw_point(hashed_process_data->pixmap,
-                     drawing->gc,
-                     x,
-                     COLLISION_POSITION(hashed_process_data->height));
-      hashed_process_data->x.middle_marked = TRUE;
-    }
-  }
-  else {
-    TimeWindow time_window = 
-      lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-    if(ltt_time_compare(evtime, time_window.start_time) == -1
-          || ltt_time_compare(evtime, time_window.end_time) == 1)
-              return;
-#endif //EXTRA_CHECK
-    Drawing_t *drawing = resourceview_data->drawing;
-    guint width = drawing->width;
-    guint x;
-
-    convert_time_to_pixels(
-        time_window,
-        evtime,
-        width,
-        &x);
-
-
-    /* Jump over draw if we are at the same x position */
-    if(unlikely(x == hashed_process_data->x.middle &&
-             hashed_process_data->x.middle_used))
-    {
-      if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-        /* Draw collision indicator */
-        gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-        gdk_draw_point(hashed_process_data->pixmap,
-                       drawing->gc,
-                       x,
-                       COLLISION_POSITION(hashed_process_data->height));
-        hashed_process_data->x.middle_marked = TRUE;
-      }
-      /* jump */
-    }
-    else {
-
-      DrawContext draw_context;
-      /* Now create the drawing context that will be used to draw
-       * items related to the last state. */
-      draw_context.drawable = hashed_process_data->pixmap;
-      draw_context.gc = drawing->gc;
-      draw_context.pango_layout = drawing->pango_layout;
-      draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-      draw_context.drawinfo.end.x = x;
-
-      draw_context.drawinfo.y.over = 1;
-      draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-      draw_context.drawinfo.y.under = hashed_process_data->height;
-
-      draw_context.drawinfo.start.offset.over = 0;
-      draw_context.drawinfo.start.offset.middle = 0;
-      draw_context.drawinfo.start.offset.under = 0;
-      draw_context.drawinfo.end.offset.over = 0;
-      draw_context.drawinfo.end.offset.middle = 0;
-      draw_context.drawinfo.end.offset.under = 0;
-
-      {
-        /* Draw the line */
-        PropertiesLine prop_line;
-        prop_line.line_width = STATE_LINE_WIDTH;
-        prop_line.style = GDK_LINE_SOLID;
-        prop_line.y = MIDDLE;
-        trap_set_line_color(&prop_line, &ts->trap_states[trap]);
-        draw_line((void*)&prop_line, (void*)&draw_context);
-      }
-      /* become the last x position */
-      hashed_process_data->x.middle = x;
-      hashed_process_data->x.middle_used = TRUE;
-      hashed_process_data->x.middle_marked = FALSE;
-
-      /* Calculate the next good time */
-      convert_pixels_to_time(width, x+1, time_window,
-                             &hashed_process_data->next_good_time);
-    }
-  }
-  
-  return 0;
-}
-
-
-int before_bdev_event_hook(void *hook_data, void *call_data)
-{
-  LttvTraceHook *th = (LttvTraceHook*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)th->hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttTime evtime = ltt_event_time(e);
-
-  /* we are in a execmode, before the state update. We must draw the
-   * items corresponding to the state before it changes : now is the right
-   * time to do it.
-   */
-  /* For the pid */
-
-  guint cpu = tfs->cpu;
-  guint8 major = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 0));
-  guint8 minor = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 1));
-  guint oper = ltt_event_get_long_unsigned(e, lttv_trace_get_hook_field(th, 2));
-  gint devcode_gint = MKDEV(major,minor);
-
-  guint trace_num = ts->parent.index;
-
-  LttvBdevState *bdev = g_hash_table_lookup(ts->bdev_states, &devcode_gint); 
-  /* the result of the lookup might be NULL. that's ok, the rest of the function
-     should understand it was not found and that its state is unknown */
-
-  /* Well, the process_out existed : we must get it in the process hash
-   * or add it, and draw its items.
-   */
-   /* Add process to process list (if not present) */
-  guint pl_height = 0;
-  HashedResourceData *hashed_process_data = NULL;
-  ProcessList *process_list = resourceview_data->process_list;
-//  LttTime birth = process->creation_time;
-//  if(likely(process_list->current_hash_data[trace_num][cpu] != NULL)) {
-//    hashed_process_data = process_list->current_hash_data[trace_num][cpu];
-//  } else {
-  hashed_process_data = resourcelist_obtain_bdev(resourceview_data, trace_num, devcode_gint);
-    ////hashed_process_data = processlist_get_process_data(process_list, resourceq, trace_num);
-//    hashed_process_data = processlist_get_process_data(process_list,
-//            pid,
-//            process->cpu,
-//            &birth,
-//            trace_num);
-//
-    /* Set the current process */
-//    process_list->current_hash_data[trace_num][process->cpu] =
-//                                               hashed_process_data;
-//  }
-
-  /* Now, the process is in the state hash and our own process hash.
-   * We definitely can draw the items related to the ending state.
-   */
-
-  if(likely(ltt_time_compare(hashed_process_data->next_good_time,
-                      evtime) > 0))
-  {
-    if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = resourceview_data->drawing;
-      guint width = drawing->width;
-      guint x;
-      convert_time_to_pixels(
-                time_window,
-                evtime,
-                width,
-                &x);
-
-      /* Draw collision indicator */
-      gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-      gdk_draw_point(hashed_process_data->pixmap,
-                     drawing->gc,
-                     x,
-                     COLLISION_POSITION(hashed_process_data->height));
-      hashed_process_data->x.middle_marked = TRUE;
-    }
-  }
-  else {
-    TimeWindow time_window = 
-      lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-    if(ltt_time_compare(evtime, time_window.start_time) == -1
-          || ltt_time_compare(evtime, time_window.end_time) == 1)
-              return;
-#endif //EXTRA_CHECK
-    Drawing_t *drawing = resourceview_data->drawing;
-    guint width = drawing->width;
-    guint x;
-
-    convert_time_to_pixels(
-        time_window,
-        evtime,
-        width,
-        &x);
-
-
-    /* Jump over draw if we are at the same x position */
-    if(unlikely(x == hashed_process_data->x.middle &&
-             hashed_process_data->x.middle_used))
-    {
-      if(unlikely(hashed_process_data->x.middle_marked == FALSE)) {
-        /* Draw collision indicator */
-        gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-        gdk_draw_point(hashed_process_data->pixmap,
-                       drawing->gc,
-                       x,
-                       COLLISION_POSITION(hashed_process_data->height));
-        hashed_process_data->x.middle_marked = TRUE;
-      }
-      /* jump */
-    }
-    else {
-
-      DrawContext draw_context;
-      /* Now create the drawing context that will be used to draw
-       * items related to the last state. */
-      draw_context.drawable = hashed_process_data->pixmap;
-      draw_context.gc = drawing->gc;
-      draw_context.pango_layout = drawing->pango_layout;
-      draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-      draw_context.drawinfo.end.x = x;
-
-      draw_context.drawinfo.y.over = 1;
-      draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-      draw_context.drawinfo.y.under = hashed_process_data->height;
-
-      draw_context.drawinfo.start.offset.over = 0;
-      draw_context.drawinfo.start.offset.middle = 0;
-      draw_context.drawinfo.start.offset.under = 0;
-      draw_context.drawinfo.end.offset.over = 0;
-      draw_context.drawinfo.end.offset.middle = 0;
-      draw_context.drawinfo.end.offset.under = 0;
-
-      {
-        /* Draw the line */
-        PropertiesLine prop_line;
-        prop_line.line_width = STATE_LINE_WIDTH;
-        prop_line.style = GDK_LINE_SOLID;
-        prop_line.y = MIDDLE;
-        bdev_set_line_color(&prop_line, bdev);
-        draw_line((void*)&prop_line, (void*)&draw_context);
-      }
-      /* become the last x position */
-      hashed_process_data->x.middle = x;
-      hashed_process_data->x.middle_used = TRUE;
-      hashed_process_data->x.middle_marked = FALSE;
-
-      /* Calculate the next good time */
-      convert_pixels_to_time(width, x+1, time_window,
-                             &hashed_process_data->next_good_time);
-    }
-  }
-  
-  return 0;
-}
-
-gint update_time_window_hook(void *hook_data, void *call_data)
-{
-  ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
-  Drawing_t *drawing = resourceview_data->drawing;
-  ProcessList *process_list = resourceview_data->process_list;
-
-  const TimeWindowNotifyData *time_window_nofify_data = 
-                          ((const TimeWindowNotifyData *)call_data);
-
-  TimeWindow *old_time_window = 
-    time_window_nofify_data->old_time_window;
-  TimeWindow *new_time_window = 
-    time_window_nofify_data->new_time_window;
-  
-  /* Update the ruler */
-  drawing_update_ruler(resourceview_data->drawing,
-                       new_time_window);
-
-
-  /* Two cases : zoom in/out or scrolling */
-  
-  /* In order to make sure we can reuse the old drawing, the scale must
-   * be the same and the new time interval being partly located in the
-   * currently shown time interval. (reuse is only for scrolling)
-   */
-
-  g_info("Old time window HOOK : %lu, %lu to %lu, %lu",
-      old_time_window->start_time.tv_sec,
-      old_time_window->start_time.tv_nsec,
-      old_time_window->time_width.tv_sec,
-      old_time_window->time_width.tv_nsec);
-
-  g_info("New time window HOOK : %lu, %lu to %lu, %lu",
-      new_time_window->start_time.tv_sec,
-      new_time_window->start_time.tv_nsec,
-      new_time_window->time_width.tv_sec,
-      new_time_window->time_width.tv_nsec);
-
-  if( new_time_window->time_width.tv_sec == old_time_window->time_width.tv_sec
-  && new_time_window->time_width.tv_nsec == old_time_window->time_width.tv_nsec)
-  {
-    /* Same scale (scrolling) */
-    g_info("scrolling");
-    LttTime *ns = &new_time_window->start_time;
-    LttTime *nw = &new_time_window->time_width;
-    LttTime *os = &old_time_window->start_time;
-    LttTime *ow = &old_time_window->time_width;
-    LttTime old_end = old_time_window->end_time;
-    LttTime new_end = new_time_window->end_time;
-    //if(ns<os+w<ns+w)
-    //if(ns<os+w && os+w<ns+w)
-    //if(ns<old_end && os<ns)
-    if(ltt_time_compare(*ns, old_end) == -1
-        && ltt_time_compare(*os, *ns) == -1)
-    {
-      g_info("scrolling near right");
-      /* Scroll right, keep right part of the screen */
-      guint x = 0;
-      guint width = resourceview_data->drawing->width;
-      convert_time_to_pixels(
-          *old_time_window,
-          *ns,
-          width,
-          &x);
-
-      /* Copy old data to new location */
-      copy_pixmap_region(process_list,
-                  NULL,
-                  resourceview_data->drawing->drawing_area->style->black_gc,
-                  NULL,
-                  x, 0,
-                  0, 0,
-                  resourceview_data->drawing->width-x+SAFETY, -1);
-
-      if(drawing->damage_begin == drawing->damage_end)
-        drawing->damage_begin = resourceview_data->drawing->width-x;
-      else
-        drawing->damage_begin = 0;
-
-      drawing->damage_end = resourceview_data->drawing->width;
-
-      /* Clear the data request background, but not SAFETY */
-      rectangle_pixmap(process_list,
-          resourceview_data->drawing->drawing_area->style->black_gc,
-          TRUE,
-          drawing->damage_begin+SAFETY, 0,
-          drawing->damage_end - drawing->damage_begin,  // do not overlap
-          -1);
-      gtk_widget_queue_draw(drawing->drawing_area);
-
-      /* Get new data for the rest. */
-      drawing_data_request(resourceview_data->drawing,
-          drawing->damage_begin, 0,
-          drawing->damage_end - drawing->damage_begin,
-          resourceview_data->drawing->height);
-    } else { 
-      if(ltt_time_compare(*ns,*os) == -1
-          && ltt_time_compare(*os,new_end) == -1)
-      {
-        g_info("scrolling near left");
-        /* Scroll left, keep left part of the screen */
-        guint x = 0;
-        guint width = resourceview_data->drawing->width;
-        convert_time_to_pixels(
-            *new_time_window,
-            *os,
-            width,
-            &x);
-        
-        /* Copy old data to new location */
-        copy_pixmap_region  (process_list,
-            NULL,
-            resourceview_data->drawing->drawing_area->style->black_gc,
-            NULL,
-            0, 0,
-            x, 0,
-            -1, -1);
-  
-        if(drawing->damage_begin == drawing->damage_end)
-          drawing->damage_end = x;
-        else
-          drawing->damage_end = 
-            resourceview_data->drawing->width;
-
-        drawing->damage_begin = 0;
-        
-        rectangle_pixmap (process_list,
-          resourceview_data->drawing->drawing_area->style->black_gc,
-          TRUE,
-          drawing->damage_begin, 0,
-          drawing->damage_end - drawing->damage_begin,  // do not overlap
-          -1);
-
-        gtk_widget_queue_draw(drawing->drawing_area);
-
-        /* Get new data for the rest. */
-        drawing_data_request(resourceview_data->drawing,
-            drawing->damage_begin, 0,
-            drawing->damage_end - drawing->damage_begin,
-            resourceview_data->drawing->height);
-    
-      } else {
-        if(ltt_time_compare(*ns,*os) == 0)
-        {
-          g_info("not scrolling");
-        } else {
-          g_info("scrolling far");
-          /* Cannot reuse any part of the screen : far jump */
-          
-          
-          rectangle_pixmap (process_list,
-            resourceview_data->drawing->drawing_area->style->black_gc,
-            TRUE,
-            0, 0,
-            resourceview_data->drawing->width+SAFETY, // do not overlap
-            -1);
-
-          gtk_widget_queue_draw(drawing->drawing_area);
-
-          drawing->damage_begin = 0;
-          drawing->damage_end = resourceview_data->drawing->width;
-
-          drawing_data_request(resourceview_data->drawing,
-              0, 0,
-              resourceview_data->drawing->width,
-              resourceview_data->drawing->height);
-      
-        }
-      }
-    }
-  } else {
-    /* Different scale (zoom) */
-    g_info("zoom");
-
-    rectangle_pixmap (process_list,
-          resourceview_data->drawing->drawing_area->style->black_gc,
-          TRUE,
-          0, 0,
-          resourceview_data->drawing->width+SAFETY, // do not overlap
-          -1);
-
-    gtk_widget_queue_draw(drawing->drawing_area);
-  
-    drawing->damage_begin = 0;
-    drawing->damage_end = resourceview_data->drawing->width;
-
-    drawing_data_request(resourceview_data->drawing,
-        0, 0,
-        resourceview_data->drawing->width,
-        resourceview_data->drawing->height);
-  }
-
-  /* Update directly when scrolling */
-  gdk_window_process_updates(resourceview_data->drawing->drawing_area->window,
-      TRUE);
-
-  return 0;
-}
-
-gint traceset_notify(void *hook_data, void *call_data)
-{
-  ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
-  Drawing_t *drawing = resourceview_data->drawing;
-
-  if(unlikely(drawing->gc == NULL)) {
-    return FALSE;
-  }
-  if(drawing->dotted_gc == NULL) {
-    return FALSE;
-  }
-
-  drawing_clear(resourceview_data->drawing);
-  processlist_clear(resourceview_data->process_list);
-  gtk_widget_set_size_request(
-      resourceview_data->drawing->drawing_area,
-                -1, processlist_get_height(resourceview_data->process_list));
-  redraw_notify(resourceview_data, NULL);
-
-  request_background_data(resourceview_data);
-  return FALSE;
-}
-
-gint redraw_notify(void *hook_data, void *call_data)
-{
-  ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
-  Drawing_t *drawing = resourceview_data->drawing;
-  GtkWidget *widget = drawing->drawing_area;
-
-  drawing->damage_begin = 0;
-  drawing->damage_end = drawing->width;
-
-  /* fun feature, to be separated someday... */
-  drawing_clear(resourceview_data->drawing);
-  processlist_clear(resourceview_data->process_list);
-  gtk_widget_set_size_request(
-      resourceview_data->drawing->drawing_area,
-                -1, processlist_get_height(resourceview_data->process_list));
-  // Clear the images
-  rectangle_pixmap (resourceview_data->process_list,
-        widget->style->black_gc,
-        TRUE,
-        0, 0,
-        drawing->alloc_width,
-        -1);
-
-  gtk_widget_queue_draw(drawing->drawing_area);
-  
-  if(drawing->damage_begin < drawing->damage_end)
-  {
-    drawing_data_request(drawing,
-                         drawing->damage_begin,
-                         0,
-                         drawing->damage_end-drawing->damage_begin,
-                         drawing->height);
-  }
-
-  return FALSE;
-
-}
-
-
-gint continue_notify(void *hook_data, void *call_data)
-{
-  ControlFlowData *resourceview_data = (ControlFlowData*) hook_data;
-  Drawing_t *drawing = resourceview_data->drawing;
-
-  if(drawing->damage_begin < drawing->damage_end)
-  {
-    drawing_data_request(drawing,
-                         drawing->damage_begin,
-                         0,
-                         drawing->damage_end-drawing->damage_begin,
-                         drawing->height);
-  }
-
-  return FALSE;
-}
-
-
-gint update_current_time_hook(void *hook_data, void *call_data)
-{
-  ControlFlowData *resourceview_data = (ControlFlowData*)hook_data;
-  Drawing_t *drawing = resourceview_data->drawing;
-
-  LttTime current_time = *((LttTime*)call_data);
-  
-  TimeWindow time_window =
-            lttvwindow_get_time_window(resourceview_data->tab);
-  
-  LttTime time_begin = time_window.start_time;
-  LttTime width = time_window.time_width;
-  LttTime half_width;
-  {
-    guint64 time_ll = ltt_time_to_uint64(width);
-    time_ll = time_ll >> 1; /* divide by two */
-    half_width = ltt_time_from_uint64(time_ll);
-  }
-  LttTime time_end = ltt_time_add(time_begin, width);
-
-  LttvTracesetContext * tsc =
-        lttvwindow_get_traceset_context(resourceview_data->tab);
-  
-  LttTime trace_start = tsc->time_span.start_time;
-  LttTime trace_end = tsc->time_span.end_time;
-  
-  g_info("New current time HOOK : %lu, %lu", current_time.tv_sec,
-              current_time.tv_nsec);
-  
-  /* If current time is inside time interval, just move the highlight
-   * bar */
-
-  /* Else, we have to change the time interval. We have to tell it
-   * to the main window. */
-  /* The time interval change will take care of placing the current
-   * time at the center of the visible area, or nearest possible if we are
-   * at one end of the trace. */
-  
-  
-  if(ltt_time_compare(current_time, time_begin) < 0)
-  {
-    TimeWindow new_time_window;
-
-    if(ltt_time_compare(current_time,
-          ltt_time_add(trace_start,half_width)) < 0)
-      time_begin = trace_start;
-    else
-      time_begin = ltt_time_sub(current_time,half_width);
-  
-    new_time_window.start_time = time_begin;
-    new_time_window.time_width = width;
-    new_time_window.time_width_double = ltt_time_to_double(width);
-    new_time_window.end_time = ltt_time_add(time_begin, width);
-
-    lttvwindow_report_time_window(resourceview_data->tab, new_time_window);
-  }
-  else if(ltt_time_compare(current_time, time_end) > 0)
-  {
-    TimeWindow new_time_window;
-
-    if(ltt_time_compare(current_time, ltt_time_sub(trace_end, half_width)) > 0)
-      time_begin = ltt_time_sub(trace_end,width);
-    else
-      time_begin = ltt_time_sub(current_time,half_width);
-  
-    new_time_window.start_time = time_begin;
-    new_time_window.time_width = width;
-    new_time_window.time_width_double = ltt_time_to_double(width);
-    new_time_window.end_time = ltt_time_add(time_begin, width);
-
-    lttvwindow_report_time_window(resourceview_data->tab, new_time_window);
-    
-  }
-  gtk_widget_queue_draw(resourceview_data->drawing->drawing_area);
-  
-  /* Update directly when scrolling */
-  gdk_window_process_updates(resourceview_data->drawing->drawing_area->window,
-      TRUE);
-                             
-  return 0;
-}
-
-typedef struct _ClosureData {
-  EventsRequest *events_request;
-  LttvTracesetState *tss;
-  LttTime end_time;
-  guint x_end;
-} ClosureData;
-  
-/* Draw line until end of the screen */
-
-void draw_closure(gpointer key, gpointer value, gpointer user_data)
-{
-  ResourceUniqueNumeric *process_info = (ResourceUniqueNumeric*)key;
-  HashedResourceData *hashed_process_data = (HashedResourceData*)value;
-  ClosureData *closure_data = (ClosureData*)user_data;
-    
-  EventsRequest *events_request = closure_data->events_request;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-
-  LttvTracesetState *tss = closure_data->tss;
-  LttvTracesetContext *tsc = (LttvTracesetContext*)tss;
-
-  LttTime evtime = closure_data->end_time;
-
-  gboolean dodraw = TRUE;
-
-  if(hashed_process_data->type == RV_RESOURCE_MACHINE)
-       return;
-
-  { 
-    /* For the process */
-    /* First, check if the current process is in the state computation
-     * process list. If it is there, that means we must add it right now and
-     * draw items from the beginning of the read for it. If it is not
-     * present, it's a new process and it was not present : it will
-     * be added after the state update.  */
-#ifdef EXTRA_CHECK
-    g_assert(lttv_traceset_number(tsc->ts) > 0);
-#endif //EXTRA_CHECK
-    LttvTraceContext *tc = tsc->traces[process_info->trace_num];
-    LttvTraceState *ts = (LttvTraceState*)tc;
-
-    /* Only draw for processes that are currently in the trace states */
-
-    ProcessList *process_list = resourceview_data->process_list;
-#ifdef EXTRA_CHECK
-    /* Should be alike when background info is ready */
-    if(resourceview_data->background_info_waiting==0)
-        g_assert(ltt_time_compare(process->creation_time,
-                                  process_info->birth) == 0);
-#endif //EXTRA_CHECK
-    
-    /* Now, the process is in the state hash and our own process hash.
-     * We definitely can draw the items related to the ending state.
-     */
-    
-    if(unlikely(ltt_time_compare(hashed_process_data->next_good_time,
-                          evtime) <= 0))
-    {
-      TimeWindow time_window = 
-        lttvwindow_get_time_window(resourceview_data->tab);
-
-#ifdef EXTRA_CHECK
-      if(ltt_time_compare(evtime, time_window.start_time) == -1
-            || ltt_time_compare(evtime, time_window.end_time) == 1)
-                return;
-#endif //EXTRA_CHECK
-      Drawing_t *drawing = resourceview_data->drawing;
-      guint width = drawing->width;
-
-      guint x = closure_data->x_end;
-
-      DrawContext draw_context;
-
-      /* Now create the drawing context that will be used to draw
-       * items related to the last state. */
-      draw_context.drawable = hashed_process_data->pixmap;
-      draw_context.gc = drawing->gc;
-      draw_context.pango_layout = drawing->pango_layout;
-      draw_context.drawinfo.end.x = x;
-
-      draw_context.drawinfo.y.over = 1;
-      draw_context.drawinfo.y.middle = (hashed_process_data->height/2);
-      draw_context.drawinfo.y.under = hashed_process_data->height;
-
-      draw_context.drawinfo.start.offset.over = 0;
-      draw_context.drawinfo.start.offset.middle = 0;
-      draw_context.drawinfo.start.offset.under = 0;
-      draw_context.drawinfo.end.offset.over = 0;
-      draw_context.drawinfo.end.offset.middle = 0;
-      draw_context.drawinfo.end.offset.under = 0;
-#if 0
-      /* Jump over draw if we are at the same x position */
-      if(x == hashed_process_data->x.over)
-      {
-        /* jump */
-      } else {
-        draw_context.drawinfo.start.x = hashed_process_data->x.over;
-        /* Draw the line */
-        PropertiesLine prop_line = prepare_execmode_line(process);
-        draw_line((void*)&prop_line, (void*)&draw_context);
-
-        hashed_process_data->x.over = x;
-      }
-#endif //0
-
-      if(unlikely(x == hashed_process_data->x.middle &&
-          hashed_process_data->x.middle_used)) {
-#if 0 /* do not mark closure : not missing information */
-      if(hashed_process_data->x.middle_marked == FALSE) {
-        /* Draw collision indicator */
-        gdk_gc_set_foreground(drawing->gc, &drawing_colors[COL_WHITE]);
-        gdk_draw_point(drawing->pixmap,
-                       drawing->gc,
-                       x,
-                       y+(height/2)-3);
-        hashed_process_data->x.middle_marked = TRUE;
-      }
-#endif //0
-        /* Jump */
-      } else {
-        draw_context.drawinfo.start.x = hashed_process_data->x.middle;
-        /* Draw the line */
-        if(dodraw) {
-          PropertiesLine prop_line;
-          prop_line.line_width = STATE_LINE_WIDTH;
-          prop_line.style = GDK_LINE_SOLID;
-          prop_line.y = MIDDLE;
-          if(hashed_process_data->type == RV_RESOURCE_CPU)
-            cpu_set_line_color(&prop_line, &ts->cpu_states[process_info->id]);
-          else if(hashed_process_data->type == RV_RESOURCE_IRQ)
-            irq_set_line_color(&prop_line, &ts->irq_states[process_info->id]);
-          else if(hashed_process_data->type == RV_RESOURCE_SOFT_IRQ)
-            soft_irq_set_line_color(&prop_line, &ts->soft_irq_states[process_info->id]);
-          else if(hashed_process_data->type == RV_RESOURCE_TRAP)
-            trap_set_line_color(&prop_line, &ts->trap_states[process_info->id]);
-          else if(hashed_process_data->type == RV_RESOURCE_BDEV) {
-            gint devcode_gint = process_info->id;
-            LttvBdevState *bdev = g_hash_table_lookup(ts->bdev_states, &devcode_gint);
-            // the lookup may return null; bdev_set_line_color must act appropriately
-            bdev_set_line_color(&prop_line, bdev);
-          }
-          
-          draw_line((void*)&prop_line, (void*)&draw_context);
-        }
-
-         /* become the last x position */
-        if(likely(x != hashed_process_data->x.middle)) {
-          hashed_process_data->x.middle = x;
-          /* but don't use the pixel */
-          hashed_process_data->x.middle_used = FALSE;
-
-          /* Calculate the next good time */
-          convert_pixels_to_time(width, x+1, time_window,
-                                &hashed_process_data->next_good_time);
-        }
-      }
-    }
-  }
-}
-
-int before_chunk(void *hook_data, void *call_data)
-{
-  EventsRequest *events_request = (EventsRequest*)hook_data;
-  LttvTracesetState *tss = (LttvTracesetState*)call_data;
-  ControlFlowData *cfd = (ControlFlowData*)events_request->viewer_data;
-#if 0  
-  /* Deactivate sort */
-  gtk_tree_sortable_set_sort_column_id(
-      GTK_TREE_SORTABLE(cfd->process_list->list_store),
-      TRACE_COLUMN,
-      GTK_SORT_ASCENDING);
-#endif //0
-  drawing_chunk_begin(events_request, tss);
-
-  return 0;
-}
-
-/* before_request
- *
- * This gets executed just before an events request is executed
- */
-
-int before_request(void *hook_data, void *call_data)
-{
-  EventsRequest *events_request = (EventsRequest*)hook_data;
-  LttvTracesetState *tss = (LttvTracesetState*)call_data;
-  drawing_data_request_begin(events_request, tss);
-
-  return 0;
-}
-
-
-/*
- * after request is necessary in addition of after chunk in order to draw 
- * lines until the end of the screen. after chunk just draws lines until
- * the last event.
- * 
- * for each process
- *    draw closing line
- *    expose
- */
-int after_request(void *hook_data, void *call_data)
-{
-  guint i;
-  EventsRequest *events_request = (EventsRequest*)hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-  LttvTracesetState *tss = (LttvTracesetState*)call_data;
-  
-  ProcessList *process_list = resourceview_data->process_list;
-  LttTime end_time = events_request->end_time;
-
-  ClosureData closure_data;
-  closure_data.events_request = (EventsRequest*)hook_data;
-  closure_data.tss = tss;
-  closure_data.end_time = end_time;
-
-  TimeWindow time_window = 
-          lttvwindow_get_time_window(resourceview_data->tab);
-  guint width = resourceview_data->drawing->width;
-  convert_time_to_pixels(
-            time_window,
-            end_time,
-            width,
-            &closure_data.x_end);
-
-
-  /* Draw last items */
-  for(i=0; i<RV_RESOURCE_COUNT; i++) {
-    g_hash_table_foreach(resourcelist_get_resource_hash_table(resourceview_data, i), draw_closure,
-                        (void*)&closure_data);
-  }
-  
-  /* Request expose */
-  drawing_request_expose(events_request, tss, end_time);
-  return 0;
-}
-
-/*
- * for each process
- *    draw closing line
- * expose
- */
-int after_chunk(void *hook_data, void *call_data)
-{
-  EventsRequest *events_request = (EventsRequest*)hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-  LttvTracesetState *tss = (LttvTracesetState*)call_data;
-  LttvTracesetContext *tsc = (LttvTracesetContext*)call_data;
-  LttvTracefileContext *tfc = lttv_traceset_context_get_current_tfc(tsc);
-  LttTime end_time;
-  
-  ProcessList *process_list = resourceview_data->process_list;
-  guint i;
-  LttvTraceset *traceset = tsc->ts;
-  guint nb_trace = lttv_traceset_number(traceset);
-
-  /* Only execute when called for the first trace's events request */
-  if(!process_list->current_hash_data) return;
-
-  for(i = 0 ; i < nb_trace ; i++) {
-    g_free(process_list->current_hash_data[i]);
-  }
-  g_free(process_list->current_hash_data);
-  process_list->current_hash_data = NULL;
-
-  if(tfc != NULL)
-    end_time = LTT_TIME_MIN(tfc->timestamp, events_request->end_time);
-  else /* end of traceset, or position now out of request : end */
-    end_time = events_request->end_time;
-  
-  ClosureData closure_data;
-  closure_data.events_request = (EventsRequest*)hook_data;
-  closure_data.tss = tss;
-  closure_data.end_time = end_time;
-
-  TimeWindow time_window = 
-          lttvwindow_get_time_window(resourceview_data->tab);
-  guint width = resourceview_data->drawing->width;
-  convert_time_to_pixels(
-            time_window,
-            end_time,
-            width,
-            &closure_data.x_end);
-
-  /* Draw last items */
-  for(i=0; i<RV_RESOURCE_COUNT; i++) {
-    g_hash_table_foreach(resourcelist_get_resource_hash_table(resourceview_data, i), draw_closure,
-                        (void*)&closure_data);
-  }
-#if 0
-  /* Reactivate sort */
-  gtk_tree_sortable_set_sort_column_id(
-      GTK_TREE_SORTABLE(resourceview_data->process_list->list_store),
-      GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
-      GTK_SORT_ASCENDING);
-
-  update_index_to_pixmap(resourceview_data->process_list);
-  /* Request a full expose : drawing scrambled */
-  gtk_widget_queue_draw(resourceview_data->drawing->drawing_area);
-#endif //0
-  /* Request expose (updates damages zone also) */
-  drawing_request_expose(events_request, tss, end_time);
-
-  return 0;
-}
-
-/* after_statedump_end
- * 
- * @param hook_data ControlFlowData structure of the viewer. 
- * @param call_data Event context.
- *
- * This function adds items to be drawn in a queue for each process.
- * 
- */
-int before_statedump_end(void *hook_data, void *call_data)
-{
-  gint i;
-
-  LttvTraceHook *th = (LttvTraceHook*)hook_data;
-  EventsRequest *events_request = (EventsRequest*)th->hook_data;
-  ControlFlowData *resourceview_data = events_request->viewer_data;
-
-  LttvTracefileContext *tfc = (LttvTracefileContext *)call_data;
-
-  LttvTracefileState *tfs = (LttvTracefileState *)call_data;
-
-  LttvTraceState *ts = (LttvTraceState *)tfc->t_context;
-
-  LttvTracesetState *tss = (LttvTracesetState*)tfc->t_context->ts_context;
-  ProcessList *process_list = resourceview_data->process_list;
-
-  LttEvent *e;
-  e = ltt_tracefile_get_event(tfc->tf);
-
-  LttvFilter *filter = resourceview_data->filter;
-  if(filter != NULL && filter->head != NULL)
-    if(!lttv_filter_tree_parse(filter->head,e,tfc->tf,
-          tfc->t_context->t,tfc,NULL,NULL))
-      return FALSE;
-
-  LttTime evtime = ltt_event_time(e);
-
-  ClosureData closure_data;
-  closure_data.events_request = events_request;
-  closure_data.tss = tss;
-  closure_data.end_time = evtime;
-
-  TimeWindow time_window = 
-          lttvwindow_get_time_window(resourceview_data->tab);
-  guint width = resourceview_data->drawing->width;
-  convert_time_to_pixels(
-            time_window,
-            evtime,
-            width,
-            &closure_data.x_end);
-
-  /* Draw last items */
-  
-  for(i=0; i<RV_RESOURCE_COUNT; i++) {
-    g_hash_table_foreach(resourcelist_get_resource_hash_table(resourceview_data, i), draw_closure,
-                        (void*)&closure_data);
-  }
-#if 0
-  /* Reactivate sort */
-  gtk_tree_sortable_set_sort_column_id(
-      GTK_TREE_SORTABLE(resourceview_data->process_list->list_store),
-      GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
-      GTK_SORT_ASCENDING);
-
-  update_index_to_pixmap(resourceview_data->process_list);
-  /* Request a full expose : drawing scrambled */
-  gtk_widget_queue_draw(resourceview_data->drawing->drawing_area);
-#endif //0
-  /* Request expose (updates damages zone also) */
-  drawing_request_expose(events_request, tss, evtime);
-
-  return 0;
-}
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