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   unsigned int cell_height =
 156       get_cell_height(GTK_TREE_VIEW(control_flow_data->process_list->process_list_widget));
 157
 158   switch(event->direction) {
 159     case GDK_SCROLL_UP:
 160       gtk_adjustment_set_value(control_flow_data->v_adjust,
 161         gtk_adjustment_get_value(control_flow_data->v_adjust) - cell_height);
 162       break;
 163     case GDK_SCROLL_DOWN:
 164       gtk_adjustment_set_value(control_flow_data->v_adjust,
 165         gtk_adjustment_get_value(control_flow_data->v_adjust) + cell_height);
 166       break;
 167     default:
 168       g_error("should only scroll up and down.");
 169   }
 170   return TRUE;
 171 }
 172
 173
 174 static void update_index_to_pixmap_each(ProcessInfo *key,
 175                                         HashedProcessData *value,
 176                                         ProcessList *process_list)
 177 {
 178   guint array_index = processlist_get_index_from_data(process_list, value);
 179
 180   g_assert(array_index < process_list->index_to_pixmap->len);
 181
 182   GdkPixmap **pixmap =
 183     (GdkPixmap**)&g_ptr_array_index(process_list->index_to_pixmap, array_index);
 184
 185   *pixmap = value->pixmap;
 186 }
 187
 188
 189 void update_index_to_pixmap(ProcessList *process_list)
 190 {
 191   g_ptr_array_set_size(process_list->index_to_pixmap,
 192                        g_hash_table_size(process_list->process_hash));
 193   g_hash_table_foreach(process_list->process_hash,
 194                        (GHFunc)update_index_to_pixmap_each,
 195                        process_list);
 196 }
 197
 198
 199 static void update_pixmap_size_each(ProcessInfo *key,
 200                                     HashedProcessData *value,
 201                                     guint width)
 202 {
 203   GdkPixmap *old_pixmap = value->pixmap;
 204
 205   value->pixmap =
 206         gdk_pixmap_new(old_pixmap,
 207                        width,
 208                        value->height,
 209                        -1);
 210
 211   gdk_pixmap_unref(old_pixmap);
 212 }
 213
 214
 215 void update_pixmap_size(ProcessList *process_list, guint width)
 216 {
 217   g_hash_table_foreach(process_list->process_hash,
 218                        (GHFunc)update_pixmap_size_each,
 219                        GUINT_TO_POINTER(width));
 220 }
 221
 222
 223 typedef struct _CopyPixmap {
 224   GdkDrawable *dest;
 225   GdkGC *gc;
 226   GdkDrawable *src;
 227   gint xsrc, ysrc, xdest, ydest, width, height;
 228 } CopyPixmap;
 229
 230 static void copy_pixmap_region_each(ProcessInfo *key,
 231                                     HashedProcessData *value,
 232                                     CopyPixmap *cp)
 233 {
 234   GdkPixmap *src = cp->src;
 235   GdkPixmap *dest = cp->dest;
 236
 237   if(dest == NULL)
 238     dest = value->pixmap;
 239   if(src == NULL)
 240     src = value->pixmap;
 241
 242   gdk_draw_drawable (dest,
 243       cp->gc,
 244       src,
 245       cp->xsrc, cp->ysrc,
 246       cp->xdest, cp->ydest,
 247       cp->width, cp->height);
 248 }
 249
 250
 251
 252
 253 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 254     GdkGC *gc, GdkDrawable *src,
 255     gint xsrc, gint ysrc,
 256     gint xdest, gint ydest, gint width, gint height)
 257 {
 258   CopyPixmap cp = { dest, gc, src, xsrc, ysrc, xdest, ydest, width, height };
 259
 260   g_hash_table_foreach(process_list->process_hash,
 261                        (GHFunc)copy_pixmap_region_each,
 262                        &cp);
 263 }
 264
 265
 266
 267 typedef struct _RectanglePixmap {
 268   gboolean filled;
 269   gint x, y, width, height;
 270   GdkGC *gc;
 271 } RectanglePixmap;
 272
 273 static void rectangle_pixmap_each(ProcessInfo *key,
 274                                   HashedProcessData *value,
 275                                   RectanglePixmap *rp)
 276 {
 277   if(rp->height == -1)
 278     rp->height = value->height;
 279
 280   gdk_draw_rectangle (value->pixmap,
 281       rp->gc,
 282       rp->filled,
 283       rp->x, rp->y,
 284       rp->width, rp->height);
 285 }
 286
 287
 288
 289
 290 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 291     gboolean filled, gint x, gint y, gint width, gint height)
 292 {
 293   RectanglePixmap rp = { filled, x, y, width, height, gc };
 294
 295   g_hash_table_foreach(process_list->process_hash,
 296                        (GHFunc)rectangle_pixmap_each,
 297                        &rp);
 298 }
 299
 300
 301 /* Renders each pixmaps into on big drawable */
 302 void copy_pixmap_to_screen(ProcessList *process_list,
 303     GdkDrawable *dest,
 304     GdkGC *gc,
 305     gint x, gint y,
 306     gint width, gint height)
 307 {
 308   if(process_list->index_to_pixmap->len == 0) return;
 309   guint cell_height = process_list->cell_height;
 310
 311   /* Get indexes */
 312   gint begin = floor(y/(double)cell_height);
 313   gint end = MIN(ceil((y+height)/(double)cell_height),
 314                  process_list->index_to_pixmap->len);
 315   gint i;
 316
 317   for(i=begin; i<end; i++) {
 318     g_assert(i<process_list->index_to_pixmap->len);
 319     /* Render the pixmap to the screen */
 320     GdkPixmap *pixmap =
 321       //(GdkPixmap*)g_ptr_array_index(process_list->index_to_pixmap, i);
 322       GDK_PIXMAP(g_ptr_array_index(process_list->index_to_pixmap, i));
 323
 324     gdk_draw_drawable (dest,
 325         gc,
 326         pixmap,
 327         x, 0,
 328         x, i*cell_height,
 329         width, cell_height);
 330
 331   }
 332
 333
 334 }
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344 ProcessList *processlist_construct(void)
 345 {
 346   GtkTreeViewColumn *column;
 347   GtkCellRenderer *renderer;
 348
 349   ProcessList* process_list = g_new(ProcessList,1);
 350
 351   process_list->number_of_process = 0;
 352
 353   process_list->current_hash_data = NULL;
 354
 355   /* Create the Process list */
 356   process_list->list_store = gtk_list_store_new (  N_COLUMNS,
 357               G_TYPE_STRING,
 358               G_TYPE_STRING,
 359               G_TYPE_UINT,
 360               G_TYPE_UINT,
 361               G_TYPE_UINT,
 362               G_TYPE_UINT,
 363               G_TYPE_ULONG,
 364               G_TYPE_ULONG,
 365               G_TYPE_UINT);
 366
 367
 368   process_list->process_list_widget =
 369     gtk_tree_view_new_with_model
 370     (GTK_TREE_MODEL (process_list->list_store));
 371
 372   g_object_unref (G_OBJECT (process_list->list_store));
 373
 374   gtk_tree_sortable_set_default_sort_func(
 375       GTK_TREE_SORTABLE(process_list->list_store),
 376       process_sort_func,
 377       NULL,
 378       NULL);
 379
 380
 381   gtk_tree_sortable_set_sort_column_id(
 382       GTK_TREE_SORTABLE(process_list->list_store),
 383       GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
 384       GTK_SORT_ASCENDING);
 385
 386
 387   process_list->process_hash = g_hash_table_new_full(
 388       process_list_hash_fct, process_list_equ_fct,
 389       destroy_hash_key, destroy_hash_data
 390       );
 391
 392
 393   gtk_tree_view_set_headers_visible(
 394     GTK_TREE_VIEW(process_list->process_list_widget), TRUE);
 395
 396   /* Create a column, associating the "text" attribute of the
 397    * cell_renderer to the first column of the model */
 398   /* Columns alignment : 0.0 : Left    0.5 : Center   1.0 : Right */
 399   renderer = gtk_cell_renderer_text_new ();
 400   process_list->renderer = renderer;
 401
 402   /* Add a temporary row to the model to get the cell size when the first
 403    * real process is added. */
 404   GtkTreeIter iter;
 405   GtkTreePath *path;
 406   path = gtk_tree_path_new_first();
 407   gtk_tree_model_get_iter (gtk_tree_view_get_model(GTK_TREE_VIEW(process_list->process_list_widget)), &iter, path);
 408   gtk_list_store_append(process_list->list_store, &iter);
 409   gtk_tree_path_free(path);
 410
 411   process_list->cell_height = 0;        // not ready to get size yet.
 412
 413   column = gtk_tree_view_column_new_with_attributes ( "Process",
 414                 renderer,
 415                 "text",
 416                 PROCESS_COLUMN,
 417                 NULL);
 418   gtk_tree_view_column_set_alignment (column, 0.0);
 419   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 420   gtk_tree_view_column_set_resizable(column, TRUE);
 421   gtk_tree_view_append_column (
 422     GTK_TREE_VIEW (process_list->process_list_widget), column);
 423
 424   process_list->button = column->button;
 425
 426   column = gtk_tree_view_column_new_with_attributes ( "Brand",
 427                 renderer,
 428                 "text",
 429                 BRAND_COLUMN,
 430                 NULL);
 431   gtk_tree_view_column_set_alignment (column, 0.0);
 432   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 433   gtk_tree_view_column_set_resizable(column, TRUE);
 434   gtk_tree_view_append_column (
 435     GTK_TREE_VIEW (process_list->process_list_widget), column);
 436
 437   column = gtk_tree_view_column_new_with_attributes ( "PID",
 438                 renderer,
 439                 "text",
 440                 PID_COLUMN,
 441                 NULL);
 442   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 443   gtk_tree_view_column_set_resizable(column, TRUE);
 444   gtk_tree_view_append_column (
 445     GTK_TREE_VIEW (process_list->process_list_widget), column);
 446
 447   column = gtk_tree_view_column_new_with_attributes ( "TGID",
 448                 renderer,
 449                 "text",
 450                 TGID_COLUMN,
 451                 NULL);
 452   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 453   gtk_tree_view_column_set_resizable(column, TRUE);
 454   gtk_tree_view_append_column (
 455     GTK_TREE_VIEW (process_list->process_list_widget), column);
 456
 457   column = gtk_tree_view_column_new_with_attributes ( "PPID",
 458                 renderer,
 459                 "text",
 460                 PPID_COLUMN,
 461                 NULL);
 462   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 463   gtk_tree_view_column_set_resizable(column, TRUE);
 464   gtk_tree_view_append_column (
 465     GTK_TREE_VIEW (process_list->process_list_widget), column);
 466
 467   column = gtk_tree_view_column_new_with_attributes ( "CPU",
 468                 renderer,
 469                 "text",
 470                 CPU_COLUMN,
 471                 NULL);
 472   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 473   gtk_tree_view_column_set_resizable(column, TRUE);
 474   gtk_tree_view_append_column (
 475     GTK_TREE_VIEW (process_list->process_list_widget), column);
 476
 477   column = gtk_tree_view_column_new_with_attributes ( "Birth sec",
 478                 renderer,
 479                 "text",
 480                 BIRTH_S_COLUMN,
 481                 NULL);
 482   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 483   gtk_tree_view_column_set_resizable(column, TRUE);
 484   gtk_tree_view_append_column (
 485     GTK_TREE_VIEW (process_list->process_list_widget), column);
 486
 487   //gtk_tree_view_column_set_visible(column, 0);
 488   //
 489   column = gtk_tree_view_column_new_with_attributes ( "Birth nsec",
 490                 renderer,
 491                 "text",
 492                 BIRTH_NS_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   column = gtk_tree_view_column_new_with_attributes ( "TRACE",
 500                 renderer,
 501                 "text",
 502                 TRACE_COLUMN,
 503                 NULL);
 504   gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_GROW_ONLY);
 505   gtk_tree_view_column_set_resizable(column, TRUE);
 506   gtk_tree_view_append_column (
 507     GTK_TREE_VIEW (process_list->process_list_widget), column);
 508
 509
 510   //gtk_tree_view_column_set_visible(column, 0);
 511
 512   g_object_set_data_full(
 513       G_OBJECT(process_list->process_list_widget),
 514       "process_list_Data",
 515       process_list,
 516       (GDestroyNotify)processlist_destroy);
 517
 518   process_list->index_to_pixmap = g_ptr_array_sized_new(ALLOCATE_PROCESSES);
 519
 520   return process_list;
 521 }
 522
 523 void processlist_destroy(ProcessList *process_list)
 524 {
 525   g_debug("processlist_destroy %p", process_list);
 526   g_hash_table_destroy(process_list->process_hash);
 527   process_list->process_hash = NULL;
 528   g_ptr_array_free(process_list->index_to_pixmap, TRUE);
 529
 530   g_free(process_list);
 531   g_debug("processlist_destroy end");
 532 }
 533
 534 static gboolean remove_hash_item(ProcessInfo *process_info,
 535                                  HashedProcessData *hashed_process_data,
 536                                  ProcessList *process_list)
 537 {
 538   GtkTreeIter iter;
 539
 540   iter = hashed_process_data->y_iter;
 541
 542   gtk_list_store_remove (process_list->list_store, &iter);
 543   gdk_pixmap_unref(hashed_process_data->pixmap);
 544
 545   if(likely(process_list->current_hash_data != NULL)) {
 546     if(likely(hashed_process_data ==
 547                 process_list->current_hash_data[process_info->trace_num][process_info->cpu]))
 548       process_list->current_hash_data[process_info->trace_num][process_info->cpu] = NULL;
 549   }
 550   return TRUE; /* remove the element from the hash table */
 551 }
 552
 553 void processlist_clear(ProcessList *process_list)
 554 {
 555   g_info("processlist_clear %p", process_list);
 556
 557   g_hash_table_foreach_remove(process_list->process_hash,
 558                               (GHRFunc)remove_hash_item,
 559                               (gpointer)process_list);
 560   process_list->number_of_process = 0;
 561   update_index_to_pixmap(process_list);
 562 }
 563
 564
 565 GtkWidget *processlist_get_widget(ProcessList *process_list)
 566 {
 567   return process_list->process_list_widget;
 568 }
 569
 570
 571 void destroy_hash_key(gpointer key)
 572 {
 573   g_free(key);
 574 }
 575
 576 void destroy_hash_data(gpointer data)
 577 {
 578   g_free(data);
 579 }
 580
 581
 582 void processlist_set_name(ProcessList *process_list,
 583     GQuark name,
 584     HashedProcessData *hashed_process_data)
 585 {
 586   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 587         PROCESS_COLUMN, g_quark_to_string(name),
 588         -1);
 589 }
 590
 591 void processlist_set_brand(ProcessList *process_list,
 592     GQuark brand,
 593     HashedProcessData *hashed_process_data)
 594 {
 595   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 596         BRAND_COLUMN, g_quark_to_string(brand),
 597         -1);
 598 }
 599
 600 void processlist_set_tgid(ProcessList *process_list,
 601     guint tgid,
 602     HashedProcessData *hashed_process_data)
 603 {
 604   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 605         TGID_COLUMN, tgid,
 606         -1);
 607 }
 608
 609 void processlist_set_ppid(ProcessList *process_list,
 610     guint ppid,
 611     HashedProcessData *hashed_process_data)
 612 {
 613   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 614         PPID_COLUMN, ppid,
 615         -1);
 616 }
 617
 618
 619 int processlist_add(  ProcessList *process_list,
 620       Drawing_t *drawing,
 621       guint pid,
 622       guint tgid,
 623       guint cpu,
 624       guint ppid,
 625       LttTime *birth,
 626       guint trace_num,
 627       GQuark name,
 628       GQuark brand,
 629       guint *height,
 630       ProcessInfo **pm_process_info,
 631       HashedProcessData **pm_hashed_process_data)
 632 {
 633   ProcessInfo *Process_Info = g_new(ProcessInfo, 1);
 634   HashedProcessData *hashed_process_data = g_new(HashedProcessData, 1);
 635   *pm_hashed_process_data = hashed_process_data;
 636   *pm_process_info = Process_Info;
 637
 638   Process_Info->pid = pid;
 639   Process_Info->tgid = tgid;
 640   if(pid == 0)
 641     Process_Info->cpu = cpu;
 642   else
 643     Process_Info->cpu = 0;
 644   Process_Info->ppid = ppid;
 645   Process_Info->birth = *birth;
 646   Process_Info->trace_num = trace_num;
 647
 648   /* When we create it from before state update, we are sure that the
 649    * last event occured before the beginning of the global area.
 650    *
 651    * If it is created after state update, this value (0) will be
 652    * overriden by the new state before anything is drawn.
 653    */
 654   hashed_process_data->x.over = 0;
 655   hashed_process_data->x.over_used = FALSE;
 656   hashed_process_data->x.over_marked = FALSE;
 657   hashed_process_data->x.middle = 0;
 658   hashed_process_data->x.middle_used = FALSE;
 659   hashed_process_data->x.middle_marked = FALSE;
 660   hashed_process_data->x.under = 0;
 661   hashed_process_data->x.under_used = FALSE;
 662   hashed_process_data->x.under_marked = FALSE;
 663   hashed_process_data->next_good_time = ltt_time_zero;
 664
 665   if (process_list->cell_height == 0) {
 666     GtkTreePath *path;
 667     GdkRectangle rect;
 668     GtkTreeIter iter;
 669
 670     path = gtk_tree_path_new_first();
 671     gtk_tree_model_get_iter (gtk_tree_view_get_model(GTK_TREE_VIEW(process_list->process_list_widget)), &iter, path);
 672     gtk_tree_view_get_background_area(
 673       GTK_TREE_VIEW(process_list->process_list_widget),
 674       path, NULL, &rect);
 675     gtk_list_store_remove(process_list->list_store, &iter);
 676     gtk_tree_path_free (path);
 677     process_list->cell_height = rect.height;
 678   }
 679
 680   /* Add a new row to the model */
 681   gtk_list_store_append ( process_list->list_store,
 682                           &hashed_process_data->y_iter);
 683
 684   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 685         PROCESS_COLUMN, g_quark_to_string(name),
 686         BRAND_COLUMN, g_quark_to_string(brand),
 687         PID_COLUMN, pid,
 688         TGID_COLUMN, tgid,
 689         PPID_COLUMN, ppid,
 690         CPU_COLUMN, cpu,
 691         BIRTH_S_COLUMN, birth->tv_sec,
 692         BIRTH_NS_COLUMN, birth->tv_nsec,
 693         TRACE_COLUMN, trace_num,
 694         -1);
 695   //gtk_tree_view_set_model(GTK_TREE_VIEW(process_list->process_list_widget),
 696   //                        GTK_TREE_MODEL(process_list->list_store));
 697   //gtk_container_resize_children(GTK_CONTAINER(process_list->process_list_widget));
 698
 699   g_hash_table_insert(process_list->process_hash,
 700         (gpointer)Process_Info,
 701         (gpointer)hashed_process_data);
 702
 703   process_list->number_of_process++;
 704 #if 0
 705   GtkTreePath *path;
 706   GdkRectangle rect;
 707   gtk_widget_queue_draw(process_list->process_list_widget);
 708   path = gtk_tree_path_new_first();
 709   gtk_tree_view_get_background_area(GTK_TREE_VIEW(process_list->process_list_widget),
 710     path, NULL, &rect);
 711   gtk_tree_path_free (path);
 712   process_list->cell_height = rect.height;
 713 #endif //0
 714
 715
 716   hashed_process_data->height = process_list->cell_height;
 717   g_assert(hashed_process_data->height != 0);
 718
 719   *height = hashed_process_data->height * process_list->number_of_process;
 720
 721   hashed_process_data->pixmap =
 722         gdk_pixmap_new(drawing->drawing_area->window,
 723                        drawing->alloc_width,
 724                        hashed_process_data->height,
 725                        -1);
 726
 727   // Clear the image
 728   gdk_draw_rectangle (hashed_process_data->pixmap,
 729         drawing->drawing_area->style->black_gc,
 730         TRUE,
 731         0, 0,
 732         drawing->alloc_width,
 733         hashed_process_data->height);
 734
 735   update_index_to_pixmap(process_list);
 736
 737
 738   return 0;
 739 }
 740
 741 int processlist_remove( ProcessList *process_list,
 742       guint pid,
 743       guint cpu,
 744       LttTime *birth,
 745       guint trace_num)
 746 {
 747   ProcessInfo process_info;
 748   HashedProcessData *hashed_process_data;
 749   GtkTreeIter iter;
 750
 751   process_info.pid = pid;
 752   if(pid == 0)
 753     process_info.cpu = cpu;
 754   else
 755     process_info.cpu = 0;
 756   process_info.birth = *birth;
 757   process_info.trace_num = trace_num;
 758
 759
 760   hashed_process_data =
 761     (HashedProcessData*)g_hash_table_lookup(
 762           process_list->process_hash,
 763           &process_info);
 764   if(likely(hashed_process_data != NULL))
 765   {
 766     iter = hashed_process_data->y_iter;
 767
 768     gtk_list_store_remove (process_list->list_store, &iter);
 769
 770     g_hash_table_remove(process_list->process_hash,
 771         &process_info);
 772
 773     if(likely(process_list->current_hash_data != NULL)) {
 774       if(likely(hashed_process_data == process_list->current_hash_data[trace_num][cpu])) {
 775         process_list->current_hash_data[trace_num][cpu] = NULL;
 776       }
 777     }
 778
 779     gdk_pixmap_unref(hashed_process_data->pixmap);
 780
 781     update_index_to_pixmap(process_list);
 782
 783     process_list->number_of_process--;
 784
 785     return 0;
 786   } else {
 787     return 1;
 788   }
 789 }
 790
 791
 792 #if 0
 793 static inline guint get_cpu_number_from_name(GQuark name)
 794 {
 795   const gchar *string;
 796   char *begin;
 797   guint cpu;
 798
 799   string = g_quark_to_string(name);
 800
 801   begin = strrchr(string, '/');
 802   begin++;
 803
 804   g_assert(begin != '\0');
 805
 806   cpu = strtoul(begin, NULL, 10);
 807
 808   return cpu;
 809 }
 810 #endif //0