move lttv to root
[lttv.git] / lttv / modules / gui / statistics / statistics.c
diff --git a/lttv/modules/gui/statistics/statistics.c b/lttv/modules/gui/statistics/statistics.c
new file mode 100644 (file)
index 0000000..3f5c51d
--- /dev/null
@@ -0,0 +1,738 @@
+/* This file is part of the Linux Trace Toolkit viewer
+ * Copyright (C) 2003-2004 XangXiu Yang
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <glib.h>
+#include <string.h>
+#include <gtk/gtk.h>
+#include <gdk/gdk.h>
+
+#include <ltt/ltt.h>
+#include <ltt/event.h>
+#include <ltt/trace.h>
+
+#include <lttv/lttv.h>
+#include <lttv/module.h>
+#include <lttv/tracecontext.h>
+#include <lttv/hook.h>
+#include <lttv/state.h>
+#include <lttv/stats.h>
+
+#include <lttvwindow/lttvwindow.h>
+#include <lttvwindow/lttvwindowtraces.h>
+#include <lttvwindow/lttv_plugin_tab.h>
+
+#include "hGuiStatisticInsert.xpm"
+
+#define PATH_LENGTH        256  /* CHECK */
+#define MAX_NUMBER_EVENT "max_number_event"
+
+//???????????????6
+//static GPtrArray  * statistic_traceset;
+
+/** Array containing instanced objects. Used when module is unloaded */
+static GSList *g_statistic_viewer_data_list = NULL ;
+
+typedef struct _StatisticViewerData StatisticViewerData;
+
+static void request_background_data(StatisticViewerData *svd);
+GtkWidget *guistatistic_get_widget(StatisticViewerData *svd);
+
+//! Statistic Viewer's constructor hook
+GtkWidget *h_gui_statistic(LttvPlugin *plugin);
+//! Statistic Viewer's constructor
+StatisticViewerData *gui_statistic(LttvPluginTab *ptab);
+//! Statistic Viewer's destructor
+void gui_statistic_destructor(StatisticViewerData *statistic_viewer_data);
+
+static void tree_selection_changed_cb (GtkTreeSelection *selection, gpointer data);
+
+void statistic_destroy_hash_key(gpointer key);
+void statistic_destroy_hash_data(gpointer data);
+
+void show_traceset_stats(StatisticViewerData * statistic_viewer_data);
+void show_tree(StatisticViewerData * statistic_viewer_data,
+         LttvAttribute* stats,  GtkTreeIter* parent);
+void show_statistic(StatisticViewerData * statistic_viewer_data,
+         LttvAttribute* stats, GtkTextBuffer* buf);
+
+
+gboolean statistic_traceset_changed(void * hook_data, void * call_data);
+//void statistic_add_context_hooks(StatisticViewerData * statistic_viewer_data, 
+//           LttvTracesetContext * tsc);
+//void statistic_remove_context_hooks(StatisticViewerData *statistic_viewer_data, 
+//           LttvTracesetContext * tsc);
+
+//gboolean statistic_insert_traceset_stats(void * stats);
+
+enum
+{
+   NAME_COLUMN,
+   N_COLUMNS
+};
+
+struct _StatisticViewerData{
+  Tab *tab;
+  LttvPluginTab *ptab;
+  //LttvTracesetStats * stats;
+  int                 size;
+
+  //gboolean     shown;       //indicate if the statistic is shown or not
+  //char *       filter_key;
+
+  GtkWidget    * hpaned_v;
+  GtkTreeStore * store_m;
+  GtkWidget    * tree_v;
+
+  //scroll window containing Tree View
+  GtkWidget * scroll_win_tree;
+
+  GtkWidget    * text_v;  
+  //scroll window containing Text View
+  GtkWidget * scroll_win_text;
+
+  // Selection handler 
+  GtkTreeSelection *select_c;
+  
+  //hash 
+  GHashTable *statistic_hash;
+
+  guint background_info_waiting;
+};
+
+
+
+
+/* Action to do when background computation completed.
+ *
+ * Eventually, will have to check that every requested traces are finished
+ * before doing the redraw. It will save unnecessary processor usage.
+ */
+
+static gint background_ready(void *hook_data, void *call_data)
+{
+  StatisticViewerData *svd = (StatisticViewerData *)hook_data;
+  Tab *tab = svd->tab;
+  LttvTrace *trace = (LttvTrace*)call_data;
+
+  svd->background_info_waiting--;
+
+  if(svd->background_info_waiting == 0) {
+    g_message("statistics viewer : background computation data ready.");
+
+    gtk_tree_store_clear (svd->store_m);
+
+    lttv_stats_sum_traceset(lttvwindow_get_traceset_stats(tab),
+      ltt_time_infinite);
+    show_traceset_stats(svd);
+  }
+
+  return 0;
+}
+
+/* Request background computation. Verify if it is in progress or ready first.
+ *
+ * Right now, for all loaded traces.
+ *
+ * Later : must be only for each trace in the tab's traceset.
+ */
+static void request_background_data(StatisticViewerData *svd)
+{
+  gint num_traces = lttvwindowtraces_get_number();
+  gint i;
+  LttvTrace *trace;
+  GtkTextBuffer* buf;
+
+  LttvHooks *background_ready_hook = 
+    lttv_hooks_new();
+  lttv_hooks_add(background_ready_hook, background_ready, svd,
+      LTTV_PRIO_DEFAULT);
+  svd->background_info_waiting = num_traces;
+  buf = gtk_text_view_get_buffer((GtkTextView*)svd->text_v);
+  gtk_text_buffer_set_text(buf,"", -1);
+  
+  for(i=0;i<num_traces;i++) {
+    trace = lttvwindowtraces_get_trace(i);
+
+    if(lttvwindowtraces_get_ready(g_quark_from_string("stats"),trace)==FALSE) {
+
+      if(lttvwindowtraces_get_in_progress(g_quark_from_string("stats"),
+                                          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, "stats"))
+          lttvwindowtraces_background_request_queue(
+              main_window_get_widget(svd->tab), trace, "stats");
+        lttvwindowtraces_background_notify_queue(svd,
+                                                 trace,
+                                                 ltt_time_infinite,
+                                                 NULL,
+                                                 background_ready_hook);
+      } else { /* in progress */
+        lttvwindowtraces_background_notify_current(svd,
+                                                   trace,
+                                                   ltt_time_infinite,
+                                                   NULL,
+                                                   background_ready_hook);
+      
+      }
+    } else {
+      /* ready */
+      lttv_hooks_call(background_ready_hook, NULL);
+    }
+  }
+
+  if(num_traces == 0) {
+    svd->background_info_waiting = 1;
+    lttv_hooks_call(background_ready_hook, NULL);
+  }
+  lttv_hooks_destroy(background_ready_hook);
+}
+
+
+GtkWidget *guistatistic_get_widget(StatisticViewerData *svd)
+{
+  return svd->hpaned_v;
+}
+
+
+void
+gui_statistic_destructor(StatisticViewerData *statistic_viewer_data)
+{
+  Tab *tab = statistic_viewer_data->tab;
+
+  /* May already been done by GTK window closing */
+  if(GTK_IS_WIDGET(guistatistic_get_widget(statistic_viewer_data))){
+    g_info("widget still exists");
+  }
+  if(tab != NULL) {
+    lttvwindow_unregister_traceset_notify(statistic_viewer_data->tab,
+                                          statistic_traceset_changed,
+                                          statistic_viewer_data);
+  }
+  lttvwindowtraces_background_notify_remove(statistic_viewer_data);
+
+  g_hash_table_destroy(statistic_viewer_data->statistic_hash);
+  g_statistic_viewer_data_list =
+    g_slist_remove(g_statistic_viewer_data_list, statistic_viewer_data);
+  g_free(statistic_viewer_data);
+}
+
+
+/**
+ * Statistic Viewer's constructor hook
+ *
+ * This constructor is given as a parameter to the menuitem and toolbar button
+ * registration. It creates the list.
+ * @param parent_window A pointer to the parent window.
+ * @return The widget created.
+ */
+GtkWidget *
+h_gui_statistic(LttvPlugin *plugin)
+{
+  LttvPluginTab *ptab = LTTV_PLUGIN_TAB(plugin);
+  StatisticViewerData* statistic_viewer_data = gui_statistic(ptab) ;
+
+  if(statistic_viewer_data)
+    return guistatistic_get_widget(statistic_viewer_data);
+  else return NULL;
+  
+}
+
+#if 0
+gboolean statistic_insert_traceset_stats(void * stats)
+{
+  int i, len;
+  gpointer s;
+
+  len = statistic_traceset->len;
+  for(i=0;i<len;i++){
+    s = g_ptr_array_index(statistic_traceset, i);
+    if(s == stats) break;    
+  }
+  if(i==len){
+    g_ptr_array_add(statistic_traceset, stats);
+    return TRUE;
+  }
+  return FALSE;
+}
+#endif //0
+
+/**
+ * Statistic Viewer's constructor
+ *
+ * This constructor is used to create StatisticViewerData data structure.
+ * @return The Statistic viewer data created.
+ */
+StatisticViewerData *
+gui_statistic(LttvPluginTab *ptab)
+{
+  GtkCellRenderer *renderer;
+  GtkTreeViewColumn *column;
+
+  StatisticViewerData* statistic_viewer_data = g_new(StatisticViewerData,1);
+  Tab *tab = ptab->tab;
+  statistic_viewer_data->tab  = tab;
+  statistic_viewer_data->ptab  = ptab;
+ // statistic_viewer_data->stats  =
+ //         lttvwindow_get_traceset_stats(statistic_viewer_data->tab);
+ // statistic_viewer_data->calculate_stats = 
+ //   statistic_insert_traceset_stats((void *)statistic_viewer_data->stats);
+
+  lttvwindow_register_traceset_notify(statistic_viewer_data->tab,
+                                      statistic_traceset_changed,
+                                      statistic_viewer_data);
+  statistic_viewer_data->statistic_hash = g_hash_table_new_full(g_str_hash,
+                                                  g_str_equal,
+                                                  statistic_destroy_hash_key,
+                                                  NULL);
+
+  statistic_viewer_data->hpaned_v  = gtk_hpaned_new();
+  statistic_viewer_data->store_m = gtk_tree_store_new (N_COLUMNS, G_TYPE_STRING);
+  statistic_viewer_data->tree_v  = 
+    gtk_tree_view_new_with_model (
+        GTK_TREE_MODEL (statistic_viewer_data->store_m));
+  g_object_unref (G_OBJECT (statistic_viewer_data->store_m));
+
+  // Setup the selection handler
+  statistic_viewer_data->select_c = gtk_tree_view_get_selection (GTK_TREE_VIEW (statistic_viewer_data->tree_v));
+  gtk_tree_selection_set_mode (statistic_viewer_data->select_c, GTK_SELECTION_SINGLE);
+  g_signal_connect (G_OBJECT (statistic_viewer_data->select_c), "changed",
+        G_CALLBACK (tree_selection_changed_cb),
+        statistic_viewer_data);
+
+  renderer = gtk_cell_renderer_text_new ();
+  column = gtk_tree_view_column_new_with_attributes ("Statistic Name",
+                 renderer,
+                 "text", NAME_COLUMN,
+                 NULL);
+  gtk_tree_view_column_set_alignment (column, 0.0);
+  //  gtk_tree_view_column_set_fixed_width (column, 45);
+  gtk_tree_view_append_column (GTK_TREE_VIEW (statistic_viewer_data->tree_v), column);
+
+
+  gtk_tree_view_set_headers_visible(GTK_TREE_VIEW (statistic_viewer_data->tree_v), FALSE);
+
+  statistic_viewer_data->scroll_win_tree = gtk_scrolled_window_new (NULL, NULL);
+  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(statistic_viewer_data->scroll_win_tree), 
+         GTK_POLICY_AUTOMATIC,GTK_POLICY_AUTOMATIC);
+
+  gtk_container_add (GTK_CONTAINER (statistic_viewer_data->scroll_win_tree), statistic_viewer_data->tree_v);
+  gtk_paned_pack1(GTK_PANED(statistic_viewer_data->hpaned_v),statistic_viewer_data->scroll_win_tree, TRUE, FALSE);
+  gtk_paned_set_position(GTK_PANED(statistic_viewer_data->hpaned_v), 160);
+
+  statistic_viewer_data->scroll_win_text = gtk_scrolled_window_new (NULL, NULL);
+  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(statistic_viewer_data->scroll_win_text), 
+         GTK_POLICY_AUTOMATIC,GTK_POLICY_AUTOMATIC);
+
+  statistic_viewer_data->text_v = gtk_text_view_new ();
+  
+  gtk_text_view_set_editable(GTK_TEXT_VIEW(statistic_viewer_data->text_v),FALSE);
+  gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(statistic_viewer_data->text_v),FALSE);
+  gtk_container_add (GTK_CONTAINER (statistic_viewer_data->scroll_win_text), statistic_viewer_data->text_v);
+  gtk_paned_pack2(GTK_PANED(statistic_viewer_data->hpaned_v), statistic_viewer_data->scroll_win_text, TRUE, FALSE);
+
+  gtk_container_set_border_width(
+      GTK_CONTAINER(statistic_viewer_data->hpaned_v), 1);
+  
+  gtk_widget_show(statistic_viewer_data->scroll_win_tree);
+  gtk_widget_show(statistic_viewer_data->scroll_win_text);
+  gtk_widget_show(statistic_viewer_data->tree_v);
+  gtk_widget_show(statistic_viewer_data->text_v);
+  gtk_widget_show(statistic_viewer_data->hpaned_v);
+
+  g_object_set_data_full(
+      G_OBJECT(guistatistic_get_widget(statistic_viewer_data)),
+      "statistic_viewer_data",
+      statistic_viewer_data,
+      (GDestroyNotify)gui_statistic_destructor);
+
+  /* Add the object's information to the module's array */
+  g_statistic_viewer_data_list = g_slist_append(
+      g_statistic_viewer_data_list,
+      statistic_viewer_data);
+
+  request_background_data(statistic_viewer_data);
+  return statistic_viewer_data;
+}
+
+static void
+tree_selection_changed_cb (GtkTreeSelection *selection, gpointer data)
+{
+  StatisticViewerData *statistic_viewer_data = (StatisticViewerData*)data;
+  GtkTreeIter iter;
+  GtkTreeModel *model = GTK_TREE_MODEL(statistic_viewer_data->store_m);
+  gchar *event;
+  GtkTextBuffer* buf;
+  gchar * str;
+  GtkTreePath * path;
+  GtkTextIter   text_iter;
+  LttvAttribute * stats;
+
+  if (gtk_tree_selection_get_selected (selection, &model, &iter))
+    {
+      gtk_tree_model_get (model, &iter, NAME_COLUMN, &event, -1);
+
+      path = gtk_tree_model_get_path(GTK_TREE_MODEL(model),&iter);
+      str = gtk_tree_path_to_string (path);
+      stats = (LttvAttribute*)g_hash_table_lookup (statistic_viewer_data->statistic_hash,str);
+      g_free(str);
+      
+      buf =  gtk_text_view_get_buffer((GtkTextView*)statistic_viewer_data->text_v);
+      gtk_text_buffer_set_text(buf,"Statistic for  '", -1);
+      gtk_text_buffer_get_end_iter(buf, &text_iter);
+      gtk_text_buffer_insert(buf, &text_iter, event, strlen(event));      
+      gtk_text_buffer_get_end_iter(buf, &text_iter);
+      gtk_text_buffer_insert(buf, &text_iter, "' :\n\n",5);
+      
+      show_statistic(statistic_viewer_data, stats, buf);
+
+      g_free (event);
+    }
+}
+
+void statistic_destroy_hash_key(gpointer key)
+{
+  g_free(key);
+}
+
+#ifdef DEBUG
+#include <stdio.h>
+extern FILE *stdin;
+extern FILE *stdout;
+extern FILE *stderr;
+#endif //DEBUG
+
+void show_traceset_stats(StatisticViewerData * statistic_viewer_data)
+{
+  Tab *tab = statistic_viewer_data->tab;
+  int i, nb;
+  LttvTraceset *ts;
+  LttvTraceStats *tcs;
+  LttSystemDescription *desc;
+  LttvTracesetStats * tscs = lttvwindow_get_traceset_stats(tab);
+  gchar * str, trace_str[PATH_LENGTH];
+  GtkTreePath * path;
+  GtkTreeIter   iter;
+  GtkTreeStore * store = statistic_viewer_data->store_m;
+
+  if(tscs->stats == NULL) return;
+#ifdef DEBUG
+  lttv_attribute_write_xml(tscs->stats, stdout, 1, 4);
+#endif //DEBUG
+  
+  ts = tscs->parent.parent.ts;
+  nb = lttv_traceset_number(ts);
+  if(nb == 0) return;
+
+  gtk_tree_store_append (store, &iter, NULL);  
+  gtk_tree_store_set (store, &iter,
+          NAME_COLUMN, "Traceset statistics",
+          -1);  
+  path = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &iter);
+  str = gtk_tree_path_to_string (path);
+  g_hash_table_insert(statistic_viewer_data->statistic_hash,
+          (gpointer)str, tscs->stats);
+  show_tree(statistic_viewer_data, tscs->stats, &iter);
+
+  //show stats for all traces
+  for(i = 0 ; i < nb ; i++) {
+    tcs = (LttvTraceStats *)(LTTV_TRACESET_CONTEXT(tscs)->traces[i]);
+#if 0 //FIXME
+    desc = ltt_trace_system_description(tcs->parent.parent.t);    
+    LttTime start_time = ltt_trace_system_description_trace_start_time(desc);
+    sprintf(trace_str, "Trace on system %s at time %lu.%09lu", 
+            ltt_trace_system_description_node_name(desc),
+            start_time.tv_sec,
+            start_time.tv_nsec);
+#endif //0
+    sprintf(trace_str, g_quark_to_string(ltt_trace_name(tcs->parent.parent.t)));
+    gtk_tree_store_append (store, &iter, NULL);  
+    gtk_tree_store_set (store, &iter,NAME_COLUMN,trace_str,-1);  
+    path = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &iter);
+    str = gtk_tree_path_to_string (path);
+    g_hash_table_insert(statistic_viewer_data->statistic_hash,
+      (gpointer)str,tcs->stats);
+    show_tree(statistic_viewer_data, tcs->stats, &iter);
+#ifdef DEBUG
+    lttv_attribute_write_xml(tcs->stats, stdout, 3, 4);
+#endif //DEBUG
+  }
+}
+
+void show_tree(StatisticViewerData * statistic_viewer_data,
+         LttvAttribute* stats,  GtkTreeIter* parent)
+{
+  int i, nb;
+  LttvAttribute *subtree;
+  LttvAttributeName name;
+  LttvAttributeValue value;
+  LttvAttributeType type;
+       gboolean is_named;
+  gchar * str, dir_str[PATH_LENGTH];
+  GtkTreePath * path;
+  GtkTreeIter   iter;
+  GtkTreeStore * store = statistic_viewer_data->store_m;
+
+  nb = lttv_attribute_get_number(stats);
+  for(i = 0 ; i < nb ; i++) {
+    type = lttv_attribute_get(stats, i, &name, &value, &is_named);
+    switch(type) {
+     case LTTV_GOBJECT:
+        if(LTTV_IS_ATTRIBUTE(*(value.v_gobject))) {
+          subtree = (LttvAttribute *)*(value.v_gobject);
+          if(is_named)
+            sprintf(dir_str, "%s", g_quark_to_string(name));
+          else
+            sprintf(dir_str, "%u", name);
+          gtk_tree_store_append (store, &iter, parent);  
+          gtk_tree_store_set (store, &iter,NAME_COLUMN,dir_str,-1);  
+          path = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &iter);
+          str = gtk_tree_path_to_string (path);
+          g_hash_table_insert(statistic_viewer_data->statistic_hash,
+            (gpointer)str, subtree);
+          show_tree(statistic_viewer_data, subtree, &iter);
+        }
+        break;
+      default:
+  break;
+    }
+  }    
+}
+
+void show_statistic(StatisticViewerData * statistic_viewer_data,
+        LttvAttribute* stats, GtkTextBuffer* buf)
+{
+  int i, nb , flag;
+  LttvAttributeName name;
+  LttvAttributeValue value;
+  LttvAttributeType type;
+       gboolean is_named;
+  gchar type_name[PATH_LENGTH], type_value[PATH_LENGTH];
+  GtkTextIter   text_iter;
+  
+  flag = 0;
+  nb = lttv_attribute_get_number(stats);
+  for(i = 0 ; i < nb ; i++) {
+    type = lttv_attribute_get(stats, i, &name, &value, &is_named);
+               if(is_named)
+           sprintf(type_name,"%s", g_quark_to_string(name));
+               else
+           sprintf(type_name,"%u", name);
+    type_value[0] = '\0';
+    switch(type) {
+      case LTTV_INT:
+        sprintf(type_value, " :  %d\n", *value.v_int);
+        break;
+      case LTTV_UINT:
+        sprintf(type_value, " :  %u\n", *value.v_uint);
+        break;
+      case LTTV_LONG:
+        sprintf(type_value, " :  %ld\n", *value.v_long);
+        break;
+      case LTTV_ULONG:
+        sprintf(type_value, " :  %lu\n", *value.v_ulong);
+        break;
+      case LTTV_FLOAT:
+        sprintf(type_value, " :  %f\n", (double)*value.v_float);
+        break;
+      case LTTV_DOUBLE:
+        sprintf(type_value, " :  %f\n", *value.v_double);
+        break;
+      case LTTV_TIME:
+        sprintf(type_value, " :  %10lu.%09lu\n", value.v_time->tv_sec, 
+            value.v_time->tv_nsec);
+        break;
+      case LTTV_POINTER:
+        sprintf(type_value, " :  POINTER\n");
+        break;
+      case LTTV_STRING:
+        sprintf(type_value, " :  %s\n", *value.v_string);
+        break;
+      default:
+        break;
+    }
+    if(strlen(type_value)){
+      flag = 1;
+      strcat(type_name,type_value);
+      gtk_text_buffer_get_end_iter(buf, &text_iter);
+      gtk_text_buffer_insert(buf, &text_iter, type_name, strlen(type_name));
+    }
+  }
+
+  if(flag == 0){
+    sprintf(type_value, "No statistic information in this directory.\nCheck in subdirectories please.\n");
+    gtk_text_buffer_get_end_iter(buf, &text_iter);
+    gtk_text_buffer_insert(buf, &text_iter, type_value, strlen(type_value));
+
+  }
+}
+
+gboolean statistic_traceset_changed(void * hook_data, void * call_data)
+{
+  StatisticViewerData *statistic_viewer_data = (StatisticViewerData*) hook_data;
+  
+  request_background_data(statistic_viewer_data);
+
+  return FALSE;
+}
+
+#if 0
+void statistic_add_context_hooks(StatisticViewerData * statistic_viewer_data, 
+           LttvTracesetContext * tsc)
+{
+  gint i, j, nbi, nb_tracefile;
+  LttTrace *trace;
+  LttvTraceContext *tc;
+  LttvTracefileContext *tfc;
+  LttvTracesetSelector  * ts_s;
+  LttvTraceSelector     * t_s;
+  LttvTracefileSelector * tf_s;
+  gboolean selected;
+
+  ts_s = (LttvTracesetSelector*)g_object_get_data(G_OBJECT(statistic_viewer_data->hpaned_v), 
+              statistic_viewer_data->filter_key);
+
+  //if there are hooks for traceset, add them here
+  
+  nbi = lttv_traceset_number(tsc->ts);
+  for(i = 0 ; i < nbi ; i++) {
+    t_s = lttv_traceset_selector_trace_get(ts_s,i);
+    selected = lttv_trace_selector_get_selected(t_s);
+    if(!selected) continue;
+    tc = tsc->traces[i];
+    trace = tc->t;
+    //if there are hooks for trace, add them here
+
+    nb_tracefile = ltt_trace_control_tracefile_number(trace) +
+        ltt_trace_per_cpu_tracefile_number(trace);
+    
+    for(j = 0 ; j < nb_tracefile ; j++) {
+      tf_s = lttv_trace_selector_tracefile_get(t_s,j);
+      selected = lttv_tracefile_selector_get_selected(tf_s);
+      if(!selected) continue;
+      tfc = tc->tracefiles[j];
+      
+      //if there are hooks for tracefile, add them here
+      //      lttv_tracefile_context_add_hooks(tfc, NULL,NULL,NULL,NULL,
+      //               statistic_viewer_data->before_event_hooks,NULL);
+    }
+  }  
+
+  lttv_stats_add_event_hooks(LTTV_TRACESET_STATS(tsc));
+  
+}
+
+void statistic_remove_context_hooks(StatisticViewerData * statistic_viewer_data, 
+        LttvTracesetContext * tsc)
+{
+  gint i, j, nbi, nb_tracefile;
+  LttTrace *trace;
+  LttvTraceContext *tc;
+  LttvTracefileContext *tfc;
+  LttvTracesetSelector  * ts_s;
+  LttvTraceSelector     * t_s;
+  LttvTracefileSelector * tf_s;
+  gboolean selected;
+
+  ts_s = (LttvTracesetSelector*)g_object_get_data(G_OBJECT(statistic_viewer_data->hpaned_v), 
+              statistic_viewer_data->filter_key);
+
+  //if there are hooks for traceset, remove them here
+  
+  nbi = lttv_traceset_number(tsc->ts);
+  for(i = 0 ; i < nbi ; i++) {
+    t_s = lttv_traceset_selector_trace_get(ts_s,i);
+    selected = lttv_trace_selector_get_selected(t_s);
+    if(!selected) continue;
+    tc = tsc->traces[i];
+    trace = tc->t;
+    //if there are hooks for trace, remove them here
+
+    nb_tracefile = ltt_trace_control_tracefile_number(trace) +
+        ltt_trace_per_cpu_tracefile_number(trace);
+    
+    for(j = 0 ; j < nb_tracefile ; j++) {
+      tf_s = lttv_trace_selector_tracefile_get(t_s,j);
+      selected = lttv_tracefile_selector_get_selected(tf_s);
+      if(!selected) continue;
+      tfc = tc->tracefiles[j];
+      
+      //if there are hooks for tracefile, remove them here
+      //      lttv_tracefile_context_remove_hooks(tfc, NULL,NULL,NULL,NULL,
+      //            statistic_viewer_data->before_event_hooks,NULL);
+    }
+  }
+
+  lttv_stats_remove_event_hooks(LTTV_TRACESET_STATS(tsc));
+}
+#endif //0
+
+/**
+ * plugin's init function
+ *
+ * This function initializes the Statistic Viewer functionnality through the
+ * gtkTraceSet API.
+ */
+static void init() {
+
+  lttvwindow_register_constructor("guistatistics",
+                                  "/",
+                                  "Insert Statistic Viewer",
+                                  hGuiStatisticInsert_xpm,
+                                  "Insert Statistic Viewer",
+                                  h_gui_statistic);
+}
+
+void statistic_destroy_walk(gpointer data, gpointer user_data)
+{
+  StatisticViewerData *svd = (StatisticViewerData*)data;
+
+  g_debug("CFV.c : statistic_destroy_walk, %p", svd);
+  /* May already have been done by GTK window closing */
+  if(GTK_IS_WIDGET(guistatistic_get_widget(svd)))
+    gtk_widget_destroy(guistatistic_get_widget(svd));
+}
+
+/**
+ * plugin's destroy function
+ *
+ * This function releases the memory reserved by the module and unregisters
+ * everything that has been registered in the gtkTraceSet API.
+ */
+static void destroy() {
+  
+  g_slist_foreach(g_statistic_viewer_data_list, statistic_destroy_walk, NULL );    
+  g_slist_free(g_statistic_viewer_data_list);
+
+  lttvwindow_unregister_constructor(h_gui_statistic);
+  
+}
+
+
+LTTV_MODULE("guistatistics", "Statistics viewer", \
+    "Graphical module to view statistics about processes, CPUs and systems", \
+    init, destroy, "lttvwindow")
+
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