ltt/branches/poly/lttv/modules/gui/controlflow/processlist.c

   1 /* This file is part of the Linux Trace Toolkit viewer
   2  * Copyright (C) 2003-2004 Mathieu Desnoyers
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License Version 2 as
   6  * published by the Free Software Foundation;
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  16  * MA 02111-1307, USA.
  17  */
  18
  19 #ifdef HAVE_CONFIG_H
  20 #include <config.h>
  21 #endif
  22
  23 #include <gtk/gtk.h>
  24 #include <gdk/gdk.h>
  25 #include <glib.h>
  26 #include <string.h>
  27 #include <stdlib.h>
  28 #include <math.h>
  29
  30 #include "processlist.h"
  31 #include "drawing.h"
  32 #include "drawitem.h"
  33
  34 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  35
  36 /* Preallocated Size of the index_to_pixmap array */
  37 #define ALLOCATE_PROCESSES 1000
  38
  39 /*****************************************************************************
  40  *                       Methods to synchronize process list                 *
  41  *****************************************************************************/
  42
  43
  44 gint process_sort_func  ( GtkTreeModel *model,
  45         GtkTreeIter *it_a,
  46         GtkTreeIter *it_b,
  47         gpointer user_data)
  48 {
  49   gchar *a_name;
  50   gchar *a_brand;
  51   guint a_pid, a_tgid, a_ppid, a_cpu;
  52   gulong a_birth_s, a_birth_ns;
  53   guint a_trace;
  54
  55   gchar *b_name;
  56   gchar *b_brand;
  57   guint b_pid, b_tgid, b_ppid, b_cpu;
  58   gulong b_birth_s, b_birth_ns;
  59   guint b_trace;
  60
  61   gtk_tree_model_get(model,
  62            it_a,
  63            PROCESS_COLUMN, &a_name,
  64            BRAND_COLUMN, &a_brand,
  65            PID_COLUMN, &a_pid,
  66            TGID_COLUMN, &a_tgid,
  67            PPID_COLUMN, &a_ppid,
  68            CPU_COLUMN, &a_cpu,
  69            BIRTH_S_COLUMN, &a_birth_s,
  70            BIRTH_NS_COLUMN, &a_birth_ns,
  71            TRACE_COLUMN, &a_trace,
  72            -1);
  73
  74   gtk_tree_model_get(model,
  75            it_b,
  76            PROCESS_COLUMN, &b_name,
  77            BRAND_COLUMN, &b_brand,
  78            PID_COLUMN, &b_pid,
  79            TGID_COLUMN, &b_tgid,
  80            PPID_COLUMN, &b_ppid,
  81            CPU_COLUMN, &b_cpu,
  82            BIRTH_S_COLUMN, &b_birth_s,
  83            BIRTH_NS_COLUMN, &b_birth_ns,
  84            TRACE_COLUMN, &b_trace,
  85            -1);
  86
  87
  88   /* Order by PID */
  89   if(a_pid == 0 &&  b_pid == 0) {
  90     /* If 0, order by CPU */
  91     if(a_cpu > b_cpu) return 1;
  92     if(a_cpu < b_cpu) return -1;
  93
  94   } else { /* if not 0, order by pid */
  95
  96     if(a_pid > b_pid) return 1;
  97     if(a_pid < b_pid) return -1;
  98   }
  99
 100   /* Order by birth second */
 101
 102   if(a_birth_s > b_birth_s) return 1;
 103   if(a_birth_s < b_birth_s) return -1;
 104
 105
 106   /* Order by birth nanosecond */
 107   if(a_birth_ns > b_birth_ns) return 1;
 108   if(a_birth_ns < b_birth_ns) return -1;
 109
 110   /* Order by trace_num */
 111   if(a_trace > b_trace) return 1;
 112   if(a_trace < b_trace) return -1;
 113
 114   return 0;
 115
 116 }
 117
 118 static guint process_list_hash_fct(gconstpointer key)
 119 {
 120   guint pid = ((const ProcessInfo*)key)->pid;
 121   return ((pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ^ ((const ProcessInfo*)key)->cpu);
 122 }
 123
 124 /* If hash is good, should be different */
 125 static gboolean process_list_equ_fct(gconstpointer a, gconstpointer b)
 126 {
 127   const ProcessInfo *pa = (const ProcessInfo*)a;
 128   const ProcessInfo *pb = (const ProcessInfo*)b;
 129
 130   gboolean ret = TRUE;
 131
 132   if(likely(pa->pid != pb->pid))
 133     ret = FALSE;
 134   if(likely((pa->pid == 0 && (pa->cpu != pb->cpu))))
 135     ret = FALSE;
 136   if(unlikely(ltt_time_compare(pa->birth, pb->birth) != 0))
 137     ret = FALSE;
 138   if(unlikely(pa->trace_num != pb->trace_num))
 139     ret = FALSE;
 140
 141   return ret;
 142 }
 143
 144 void destroy_hash_key(gpointer key);
 145
 146 void destroy_hash_data(gpointer data);
 147
 148
 149 gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 150 {
 151   ControlFlowData *control_flow_data =
 152       (ControlFlowData*)g_object_get_data(
 153                 G_OBJECT(widget),
 154                 "control_flow_data");
 155   Drawing_t *drawing = control_flow_data->drawing;
 156         unsigned int cell_height =
 157                 get_cell_height(GTK_TREE_VIEW(control_flow_data->process_list->process_list_widget));
 158
 159   switch(event->direction) {
 160     case GDK_SCROLL_UP:
 161       gtk_adjustment_set_value(control_flow_data->v_adjust,
 162         gtk_adjustment_get_value(control_flow_data->v_adjust) - cell_height);
 163       break;
 164     case GDK_SCROLL_DOWN:
 165       gtk_adjustment_set_value(control_flow_data->v_adjust,
 166         gtk_adjustment_get_value(control_flow_data->v_adjust) + cell_height);
 167       break;
 168     default:
 169       g_error("should only scroll up and down.");
 170   }
 171         return TRUE;
 172 }
 173
 174
 175 static void update_index_to_pixmap_each(ProcessInfo *key,
 176                                         HashedProcessData *value,
 177                                         ProcessList *process_list)
 178 {
 179   guint array_index = processlist_get_index_from_data(process_list, value);
 180
 181   g_assert(array_index < process_list->index_to_pixmap->len);
 182
 183   GdkPixmap **pixmap =
 184     (GdkPixmap**)&g_ptr_array_index(process_list->index_to_pixmap, array_index);
 185
 186   *pixmap = value->pixmap;
 187 }
 188
 189
 190 void update_index_to_pixmap(ProcessList *process_list)
 191 {
 192   g_ptr_array_set_size(process_list->index_to_pixmap,
 193                        g_hash_table_size(process_list->process_hash));
 194   g_hash_table_foreach(process_list->process_hash,
 195                        (GHFunc)update_index_to_pixmap_each,
 196                        process_list);
 197 }
 198
 199
 200 static void update_pixmap_size_each(ProcessInfo *key,
 201                                     HashedProcessData *value,
 202                                     guint width)
 203 {
 204   GdkPixmap *old_pixmap = value->pixmap;
 205
 206   value->pixmap =
 207         gdk_pixmap_new(old_pixmap,
 208                        width,
 209                        value->height,
 210                        -1);
 211
 212   gdk_pixmap_unref(old_pixmap);
 213 }
 214
 215
 216 void update_pixmap_size(ProcessList *process_list, guint width)
 217 {
 218   g_hash_table_foreach(process_list->process_hash,
 219                        (GHFunc)update_pixmap_size_each,
 220                        (gpointer)width);
 221 }
 222
 223
 224 typedef struct _CopyPixmap {
 225   GdkDrawable *dest;
 226   GdkGC *gc;
 227   GdkDrawable *src;
 228   gint xsrc, ysrc, xdest, ydest, width, height;
 229 } CopyPixmap;
 230
 231 static void copy_pixmap_region_each(ProcessInfo *key,
 232                                     HashedProcessData *value,
 233                                     CopyPixmap *cp)
 234 {
 235   GdkPixmap *src = cp->src;
 236   GdkPixmap *dest = cp->dest;
 237
 238   if(dest == NULL)
 239     dest = value->pixmap;
 240   if(src == NULL)
 241     src = value->pixmap;
 242
 243   gdk_draw_drawable (dest,
 244       cp->gc,
 245       src,
 246       cp->xsrc, cp->ysrc,
 247       cp->xdest, cp->ydest,
 248       cp->width, cp->height);
 249 }
 250
 251
 252
 253
 254 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 255     GdkGC *gc, GdkDrawable *src,
 256     gint xsrc, gint ysrc,
 257     gint xdest, gint ydest, gint width, gint height)
 258 {
 259   CopyPixmap cp = { dest, gc, src, xsrc, ysrc, xdest, ydest, width, height };
 260
 261   g_hash_table_foreach(process_list->process_hash,
 262                        (GHFunc)copy_pixmap_region_each,
 263                        &cp);
 264 }
 265
 266
 267
 268 typedef struct _RectanglePixmap {
 269   gboolean filled;
 270   gint x, y, width, height;
 271   GdkGC *gc;
 272 } RectanglePixmap;
 273
 274 static void rectangle_pixmap_each(ProcessInfo *key,
 275                                   HashedProcessData *value,
 276                                   RectanglePixmap *rp)
 277 {
 278   if(rp->height == -1)
 279     rp->height = value->height;
 280
 281   gdk_draw_rectangle (value->pixmap,
 282       rp->gc,
 283       rp->filled,
 284       rp->x, rp->y,
 285       rp->width, rp->height);
 286 }
 287
 288
 289
 290
 291 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 292     gboolean filled, gint x, gint y, gint width, gint height)
 293 {
 294   RectanglePixmap rp = { filled, x, y, width, height, gc };
 295
 296   g_hash_table_foreach(process_list->process_hash,
 297                        (GHFunc)rectangle_pixmap_each,
 298                        &rp);
 299 }
 300
 301
 302 /* Renders each pixmaps into on big drawable */
 303 void copy_pixmap_to_screen(ProcessList *process_list,
 304     GdkDrawable *dest,
 305     GdkGC *gc,
 306     gint x, gint y,
 307     gint width, gint height)
 308 {
 309   if(process_list->index_to_pixmap->len == 0) return;
 310   guint cell_height = process_list->cell_height;
 311
 312   /* Get indexes */
 313   gint begin = floor(y/(double)cell_height);
 314   gint end = MIN(ceil((y+height)/(double)cell_height),
 315                  process_list->index_to_pixmap->len);
 316   gint i;
 317
 318   for(i=begin; i<end; i++) {
 319     g_assert(i<process_list->index_to_pixmap->len);
 320     /* Render the pixmap to the screen */
 321     GdkPixmap *pixmap =
 322       //(GdkPixmap*)g_ptr_array_index(process_list->index_to_pixmap, i);
 323       GDK_PIXMAP(g_ptr_array_index(process_list->index_to_pixmap, i));
 324
 325     gdk_draw_drawable (dest,
 326         gc,
 327         pixmap,
 328         x, 0,
 329         x, i*cell_height,
 330         width, cell_height);
 331
 332   }
 333
 334
 335 }
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345 ProcessList *processlist_construct(void)
 346 {
 347   GtkTreeViewColumn *column;
 348   GtkCellRenderer *renderer;
 349
 350   ProcessList* process_list = g_new(ProcessList,1);
 351
 352   process_list->number_of_process = 0;
 353
 354   process_list->current_hash_data = NULL;
 355
 356   /* Create the Process list */
 357   process_list->list_store = gtk_list_store_new (  N_COLUMNS,
 358               G_TYPE_STRING,
 359               G_TYPE_STRING,
 360               G_TYPE_UINT,
 361               G_TYPE_UINT,
 362               G_TYPE_UINT,
 363               G_TYPE_UINT,
 364               G_TYPE_ULONG,
 365               G_TYPE_ULONG,
 366               G_TYPE_UINT);
 367
 368
 369   process_list->process_list_widget =
 370     gtk_tree_view_new_with_model
 371     (GTK_TREE_MODEL (process_list->list_store));
 372
 373   g_object_unref (G_OBJECT (process_list->list_store));
 374
 375   gtk_tree_sortable_set_default_sort_func(
 376       GTK_TREE_SORTABLE(process_list->list_store),
 377       process_sort_func,
 378       NULL,
 379       NULL);
 380
 381
 382   gtk_tree_sortable_set_sort_column_id(
 383       GTK_TREE_SORTABLE(process_list->list_store),
 384       GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
 385       GTK_SORT_ASCENDING);
 386
 387
 388   process_list->process_hash = g_hash_table_new_full(
 389       process_list_hash_fct, process_list_equ_fct,
 390       destroy_hash_key, destroy_hash_data
 391       );
 392
 393
 394   gtk_tree_view_set_headers_visible(
 395     GTK_TREE_VIEW(process_list->process_list_widget), TRUE);
 396
 397   /* Create a column, associating the "text" attribute of the
 398    * cell_renderer to the first column of the model */
 399   /* Columns alignment : 0.0 : Left    0.5 : Center   1.0 : Right */
 400   renderer = gtk_cell_renderer_text_new ();
 401   process_list->renderer = renderer;
 402
 403         gint vertical_separator;
 404         gtk_widget_style_get (GTK_WIDGET (process_list->process_list_widget),
 405                         "vertical-separator", &vertical_separator,
 406                         NULL);
 407   gtk_cell_renderer_get_size(renderer,
 408       GTK_WIDGET(process_list->process_list_widget),
 409       NULL,
 410       NULL,
 411       NULL,
 412       NULL,
 413       &process_list->cell_height);
 414
 415   process_list->cell_height = 0;
 416 #if GTK_CHECK_VERSION(2,4,15)
 417   guint ypad;
 418   g_object_get(G_OBJECT(renderer), "ypad", &ypad, NULL);
 419
 420   process_list->cell_height += ypad;
 421 #endif
 422   process_list->cell_height += vertical_separator;
 423
 424
 425   column = gtk_tree_view_column_new_with_attributes ( "Process",
 426                 renderer,
 427                 "text",
 428                 PROCESS_COLUMN,
 429                 NULL);
 430   gtk_tree_view_column_set_alignment (column, 0.0);
 431   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 432   gtk_tree_view_column_set_resizable(column, TRUE);
 433   gtk_tree_view_append_column (
 434     GTK_TREE_VIEW (process_list->process_list_widget), column);
 435
 436   process_list->button = column->button;
 437
 438   column = gtk_tree_view_column_new_with_attributes ( "Brand",
 439                 renderer,
 440                 "text",
 441                 BRAND_COLUMN,
 442                 NULL);
 443   gtk_tree_view_column_set_alignment (column, 0.0);
 444   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 445   gtk_tree_view_column_set_resizable(column, TRUE);
 446   gtk_tree_view_append_column (
 447     GTK_TREE_VIEW (process_list->process_list_widget), column);
 448
 449   column = gtk_tree_view_column_new_with_attributes ( "PID",
 450                 renderer,
 451                 "text",
 452                 PID_COLUMN,
 453                 NULL);
 454   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 455   gtk_tree_view_column_set_resizable(column, TRUE);
 456   gtk_tree_view_append_column (
 457     GTK_TREE_VIEW (process_list->process_list_widget), column);
 458
 459   column = gtk_tree_view_column_new_with_attributes ( "TGID",
 460                 renderer,
 461                 "text",
 462                 TGID_COLUMN,
 463                 NULL);
 464   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 465   gtk_tree_view_column_set_resizable(column, TRUE);
 466   gtk_tree_view_append_column (
 467     GTK_TREE_VIEW (process_list->process_list_widget), column);
 468
 469   column = gtk_tree_view_column_new_with_attributes ( "PPID",
 470                 renderer,
 471                 "text",
 472                 PPID_COLUMN,
 473                 NULL);
 474   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 475   gtk_tree_view_column_set_resizable(column, TRUE);
 476   gtk_tree_view_append_column (
 477     GTK_TREE_VIEW (process_list->process_list_widget), column);
 478
 479   column = gtk_tree_view_column_new_with_attributes ( "CPU",
 480                 renderer,
 481                 "text",
 482                 CPU_COLUMN,
 483                 NULL);
 484   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 485   gtk_tree_view_column_set_resizable(column, TRUE);
 486   gtk_tree_view_append_column (
 487     GTK_TREE_VIEW (process_list->process_list_widget), column);
 488
 489   column = gtk_tree_view_column_new_with_attributes ( "Birth sec",
 490                 renderer,
 491                 "text",
 492                 BIRTH_S_COLUMN,
 493                 NULL);
 494   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 495   gtk_tree_view_column_set_resizable(column, TRUE);
 496   gtk_tree_view_append_column (
 497     GTK_TREE_VIEW (process_list->process_list_widget), column);
 498
 499   //gtk_tree_view_column_set_visible(column, 0);
 500   //
 501   column = gtk_tree_view_column_new_with_attributes ( "Birth nsec",
 502                 renderer,
 503                 "text",
 504                 BIRTH_NS_COLUMN,
 505                 NULL);
 506   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 507   gtk_tree_view_column_set_resizable(column, TRUE);
 508   gtk_tree_view_append_column (
 509     GTK_TREE_VIEW (process_list->process_list_widget), column);
 510
 511   column = gtk_tree_view_column_new_with_attributes ( "TRACE",
 512                 renderer,
 513                 "text",
 514                 TRACE_COLUMN,
 515                 NULL);
 516   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 517   gtk_tree_view_column_set_resizable(column, TRUE);
 518   gtk_tree_view_append_column (
 519     GTK_TREE_VIEW (process_list->process_list_widget), column);
 520
 521
 522   //gtk_tree_view_column_set_visible(column, 0);
 523
 524   g_object_set_data_full(
 525       G_OBJECT(process_list->process_list_widget),
 526       "process_list_Data",
 527       process_list,
 528       (GDestroyNotify)processlist_destroy);
 529
 530   process_list->index_to_pixmap = g_ptr_array_sized_new(ALLOCATE_PROCESSES);
 531
 532   return process_list;
 533 }
 534
 535 void processlist_destroy(ProcessList *process_list)
 536 {
 537   g_debug("processlist_destroy %p", process_list);
 538   g_hash_table_destroy(process_list->process_hash);
 539   process_list->process_hash = NULL;
 540   g_ptr_array_free(process_list->index_to_pixmap, TRUE);
 541
 542   g_free(process_list);
 543   g_debug("processlist_destroy end");
 544 }
 545
 546 static gboolean remove_hash_item(ProcessInfo *process_info,
 547                                  HashedProcessData *hashed_process_data,
 548                                  ProcessList *process_list)
 549 {
 550   GtkTreeIter iter;
 551
 552   iter = hashed_process_data->y_iter;
 553
 554   gtk_list_store_remove (process_list->list_store, &iter);
 555   gdk_pixmap_unref(hashed_process_data->pixmap);
 556
 557   if(likely(process_list->current_hash_data != NULL)) {
 558     if(likely(hashed_process_data ==
 559                 process_list->current_hash_data[process_info->trace_num][process_info->cpu]))
 560       process_list->current_hash_data[process_info->trace_num][process_info->cpu] = NULL;
 561   }
 562   return TRUE; /* remove the element from the hash table */
 563 }
 564
 565 void processlist_clear(ProcessList *process_list)
 566 {
 567   g_info("processlist_clear %p", process_list);
 568
 569   g_hash_table_foreach_remove(process_list->process_hash,
 570                               (GHRFunc)remove_hash_item,
 571                               (gpointer)process_list);
 572   process_list->number_of_process = 0;
 573   update_index_to_pixmap(process_list);
 574 }
 575
 576
 577 GtkWidget *processlist_get_widget(ProcessList *process_list)
 578 {
 579   return process_list->process_list_widget;
 580 }
 581
 582
 583 void destroy_hash_key(gpointer key)
 584 {
 585   g_free(key);
 586 }
 587
 588 void destroy_hash_data(gpointer data)
 589 {
 590   g_free(data);
 591 }
 592
 593
 594 void processlist_set_name(ProcessList *process_list,
 595     GQuark name,
 596     HashedProcessData *hashed_process_data)
 597 {
 598   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 599         PROCESS_COLUMN, g_quark_to_string(name),
 600         -1);
 601 }
 602
 603 void processlist_set_brand(ProcessList *process_list,
 604     GQuark brand,
 605     HashedProcessData *hashed_process_data)
 606 {
 607   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 608         BRAND_COLUMN, g_quark_to_string(brand),
 609         -1);
 610 }
 611
 612 void processlist_set_tgid(ProcessList *process_list,
 613     guint tgid,
 614     HashedProcessData *hashed_process_data)
 615 {
 616   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 617         TGID_COLUMN, tgid,
 618         -1);
 619 }
 620
 621 void processlist_set_ppid(ProcessList *process_list,
 622     guint ppid,
 623     HashedProcessData *hashed_process_data)
 624 {
 625   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 626         PPID_COLUMN, ppid,
 627         -1);
 628 }
 629
 630
 631 int processlist_add(  ProcessList *process_list,
 632       Drawing_t *drawing,
 633       guint pid,
 634       guint tgid,
 635       guint cpu,
 636       guint ppid,
 637       LttTime *birth,
 638       guint trace_num,
 639       GQuark name,
 640       GQuark brand,
 641       guint *height,
 642       ProcessInfo **pm_process_info,
 643       HashedProcessData **pm_hashed_process_data)
 644 {
 645   ProcessInfo *Process_Info = g_new(ProcessInfo, 1);
 646   HashedProcessData *hashed_process_data = g_new(HashedProcessData, 1);
 647   *pm_hashed_process_data = hashed_process_data;
 648   *pm_process_info = Process_Info;
 649
 650   Process_Info->pid = pid;
 651   Process_Info->tgid = tgid;
 652   if(pid == 0)
 653     Process_Info->cpu = cpu;
 654   else
 655     Process_Info->cpu = 0;
 656   Process_Info->ppid = ppid;
 657   Process_Info->birth = *birth;
 658   Process_Info->trace_num = trace_num;
 659
 660   /* When we create it from before state update, we are sure that the
 661    * last event occured before the beginning of the global area.
 662    *
 663    * If it is created after state update, this value (0) will be
 664    * overriden by the new state before anything is drawn.
 665    */
 666   hashed_process_data->x.over = 0;
 667   hashed_process_data->x.over_used = FALSE;
 668   hashed_process_data->x.over_marked = FALSE;
 669   hashed_process_data->x.middle = 0;
 670   hashed_process_data->x.middle_used = FALSE;
 671   hashed_process_data->x.middle_marked = FALSE;
 672   hashed_process_data->x.under = 0;
 673   hashed_process_data->x.under_used = FALSE;
 674   hashed_process_data->x.under_marked = FALSE;
 675   hashed_process_data->next_good_time = ltt_time_zero;
 676
 677   /* Add a new row to the model */
 678   gtk_list_store_append ( process_list->list_store,
 679                           &hashed_process_data->y_iter);
 680
 681   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 682         PROCESS_COLUMN, g_quark_to_string(name),
 683         BRAND_COLUMN, g_quark_to_string(brand),
 684         PID_COLUMN, pid,
 685         TGID_COLUMN, tgid,
 686         PPID_COLUMN, ppid,
 687         CPU_COLUMN, cpu,
 688         BIRTH_S_COLUMN, birth->tv_sec,
 689         BIRTH_NS_COLUMN, birth->tv_nsec,
 690         TRACE_COLUMN, trace_num,
 691         -1);
 692   //gtk_tree_view_set_model(GTK_TREE_VIEW(process_list->process_list_widget),
 693   //                        GTK_TREE_MODEL(process_list->list_store));
 694   //gtk_container_resize_children(GTK_CONTAINER(process_list->process_list_widget));
 695
 696   g_hash_table_insert(process_list->process_hash,
 697         (gpointer)Process_Info,
 698         (gpointer)hashed_process_data);
 699
 700   process_list->number_of_process++;
 701
 702   hashed_process_data->height = process_list->cell_height;
 703
 704   g_assert(hashed_process_data->height != 0);
 705
 706   *height = hashed_process_data->height * process_list->number_of_process;
 707
 708   hashed_process_data->pixmap =
 709         gdk_pixmap_new(drawing->drawing_area->window,
 710                        drawing->alloc_width,
 711                        hashed_process_data->height,
 712                        -1);
 713
 714   // Clear the image
 715   gdk_draw_rectangle (hashed_process_data->pixmap,
 716         drawing->drawing_area->style->black_gc,
 717         TRUE,
 718         0, 0,
 719         drawing->alloc_width,
 720         hashed_process_data->height);
 721
 722   update_index_to_pixmap(process_list);
 723
 724
 725   return 0;
 726 }
 727
 728 int processlist_remove( ProcessList *process_list,
 729       guint pid,
 730       guint cpu,
 731       LttTime *birth,
 732       guint trace_num)
 733 {
 734   ProcessInfo process_info;
 735   HashedProcessData *hashed_process_data;
 736   GtkTreeIter iter;
 737
 738   process_info.pid = pid;
 739   if(pid == 0)
 740     process_info.cpu = cpu;
 741   else
 742     process_info.cpu = 0;
 743   process_info.birth = *birth;
 744   process_info.trace_num = trace_num;
 745
 746
 747   hashed_process_data =
 748     (HashedProcessData*)g_hash_table_lookup(
 749           process_list->process_hash,
 750           &process_info);
 751   if(likely(hashed_process_data != NULL))
 752   {
 753     iter = hashed_process_data->y_iter;
 754
 755     gtk_list_store_remove (process_list->list_store, &iter);
 756
 757     g_hash_table_remove(process_list->process_hash,
 758         &process_info);
 759
 760     if(likely(process_list->current_hash_data != NULL)) {
 761       if(likely(hashed_process_data == process_list->current_hash_data[trace_num][cpu])) {
 762         process_list->current_hash_data[trace_num][cpu] = NULL;
 763       }
 764     }
 765
 766     gdk_pixmap_unref(hashed_process_data->pixmap);
 767
 768     update_index_to_pixmap(process_list);
 769
 770     process_list->number_of_process--;
 771
 772     return 0;
 773   } else {
 774     return 1;
 775   }
 776 }
 777
 778
 779 #if 0
 780 static inline guint get_cpu_number_from_name(GQuark name)
 781 {
 782   const gchar *string;
 783   char *begin;
 784   guint cpu;
 785
 786   string = g_quark_to_string(name);
 787
 788   begin = strrchr(string, '/');
 789   begin++;
 790
 791   g_assert(begin != '\0');
 792
 793   cpu = strtoul(begin, NULL, 10);
 794
 795   return cpu;
 796 }
 797 #endif //0