lttng-xenomai/LinuxTraceToolkitViewer-0.8.61-xenoltt/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 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  36
  37 /* Preallocated Size of the index_to_pixmap array */
  38 #define ALLOCATE_PROCESSES 1000
  39
  40 /*****************************************************************************
  41  *                       Methods to synchronize process list                 *
  42  *****************************************************************************/
  43
  44
  45 gint process_sort_func  ( GtkTreeModel *model,
  46         GtkTreeIter *it_a,
  47         GtkTreeIter *it_b,
  48         gpointer user_data)
  49 {
  50   gchar *a_name;
  51   gchar *a_brand;
  52   guint a_pid, a_tgid, a_ppid, a_cpu;
  53   gulong a_birth_s, a_birth_ns;
  54   gulong a_trace;
  55
  56   gchar *b_name;
  57   gchar *b_brand;
  58   guint b_pid, b_tgid, b_ppid, b_cpu;
  59   gulong b_birth_s, b_birth_ns;
  60   gulong b_trace;
  61
  62   gtk_tree_model_get(model,
  63            it_a,
  64            PROCESS_COLUMN, &a_name,
  65            BRAND_COLUMN, &a_brand,
  66            PID_COLUMN, &a_pid,
  67            TGID_COLUMN, &a_tgid,
  68            PPID_COLUMN, &a_ppid,
  69            CPU_COLUMN, &a_cpu,
  70            BIRTH_S_COLUMN, &a_birth_s,
  71            BIRTH_NS_COLUMN, &a_birth_ns,
  72            TRACE_COLUMN, &a_trace,
  73            -1);
  74
  75   gtk_tree_model_get(model,
  76            it_b,
  77            PROCESS_COLUMN, &b_name,
  78            BRAND_COLUMN, &b_brand,
  79            PID_COLUMN, &b_pid,
  80            TGID_COLUMN, &b_tgid,
  81            PPID_COLUMN, &b_ppid,
  82            CPU_COLUMN, &b_cpu,
  83            BIRTH_S_COLUMN, &b_birth_s,
  84            BIRTH_NS_COLUMN, &b_birth_ns,
  85            TRACE_COLUMN, &b_trace,
  86            -1);
  87
  88
  89   /* Order by PID */
  90   if(a_pid == 0 &&  b_pid == 0) {
  91     /* If 0, order by CPU */
  92     if(a_cpu > b_cpu) return 1;
  93     if(a_cpu < b_cpu) return -1;
  94
  95   } else { /* if not 0, order by pid */
  96
  97     if(a_pid > b_pid) return 1;
  98     if(a_pid < b_pid) return -1;
  99   }
 100
 101   /* Order by birth second */
 102
 103   if(a_birth_s > b_birth_s) return 1;
 104   if(a_birth_s < b_birth_s) return -1;
 105
 106
 107   /* Order by birth nanosecond */
 108   if(a_birth_ns > b_birth_ns) return 1;
 109   if(a_birth_ns < b_birth_ns) return -1;
 110
 111   /* Order by trace_num */
 112   if(a_trace > b_trace) return 1;
 113   if(a_trace < b_trace) return -1;
 114
 115   return 0;
 116
 117 }
 118
 119 static guint process_list_hash_fct(gconstpointer key)
 120 {
 121   guint pid = ((const ProcessInfo*)key)->pid;
 122   return ((pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ^ ((const ProcessInfo*)key)->cpu);
 123 }
 124
 125 /* If hash is good, should be different */
 126 static gboolean process_list_equ_fct(gconstpointer a, gconstpointer b)
 127 {
 128   const ProcessInfo *pa = (const ProcessInfo*)a;
 129   const ProcessInfo *pb = (const ProcessInfo*)b;
 130
 131   gboolean ret = TRUE;
 132
 133   if(likely(pa->pid != pb->pid))
 134     ret = FALSE;
 135   if(likely((pa->pid == 0 && (pa->cpu != pb->cpu))))
 136     ret = FALSE;
 137   if(unlikely(ltt_time_compare(pa->birth, pb->birth) != 0))
 138     ret = FALSE;
 139   if(unlikely(pa->trace_num != pb->trace_num))
 140     ret = FALSE;
 141
 142   return ret;
 143 }
 144
 145 void destroy_hash_key(gpointer key);
 146
 147 void destroy_hash_data(gpointer data);
 148
 149
 150 gboolean scroll_event(GtkWidget *widget, GdkEventScroll *event, gpointer data)
 151 {
 152   ControlFlowData *control_flow_data =
 153       (ControlFlowData*)g_object_get_data(
 154                 G_OBJECT(widget),
 155                 "control_flow_data");
 156   Drawing_t *drawing = control_flow_data->drawing;
 157         unsigned int cell_height =
 158                 get_cell_height(GTK_TREE_VIEW(control_flow_data->process_list->process_list_widget));
 159
 160   switch(event->direction) {
 161     case GDK_SCROLL_UP:
 162       gtk_adjustment_set_value(control_flow_data->v_adjust,
 163         gtk_adjustment_get_value(control_flow_data->v_adjust) - cell_height);
 164       break;
 165     case GDK_SCROLL_DOWN:
 166       gtk_adjustment_set_value(control_flow_data->v_adjust,
 167         gtk_adjustment_get_value(control_flow_data->v_adjust) + cell_height);
 168       break;
 169     default:
 170       g_error("should only scroll up and down.");
 171   }
 172         return TRUE;
 173 }
 174
 175
 176 static void update_index_to_pixmap_each(ProcessInfo *key,
 177                                         HashedProcessData *value,
 178                                         ProcessList *process_list)
 179 {
 180   guint array_index = processlist_get_index_from_data(process_list, value);
 181
 182   g_assert(array_index < process_list->index_to_pixmap->len);
 183
 184   GdkPixmap **pixmap =
 185     (GdkPixmap**)&g_ptr_array_index(process_list->index_to_pixmap, array_index);
 186
 187   *pixmap = value->pixmap;
 188 }
 189
 190
 191 void update_index_to_pixmap(ProcessList *process_list)
 192 {
 193   g_ptr_array_set_size(process_list->index_to_pixmap,
 194                        g_hash_table_size(process_list->process_hash));
 195   g_hash_table_foreach(process_list->process_hash,
 196                        (GHFunc)update_index_to_pixmap_each,
 197                        process_list);
 198 }
 199
 200
 201 static void update_pixmap_size_each(ProcessInfo *key,
 202                                     HashedProcessData *value,
 203                                     guint width)
 204 {
 205   GdkPixmap *old_pixmap = value->pixmap;
 206
 207   value->pixmap =
 208         gdk_pixmap_new(old_pixmap,
 209                        width,
 210                        value->height,
 211                        -1);
 212
 213   gdk_pixmap_unref(old_pixmap);
 214 }
 215
 216
 217 void update_pixmap_size(ProcessList *process_list, guint width)
 218 {
 219   g_hash_table_foreach(process_list->process_hash,
 220                        (GHFunc)update_pixmap_size_each,
 221                        (gpointer)width);
 222 }
 223
 224
 225 typedef struct _CopyPixmap {
 226   GdkDrawable *dest;
 227   GdkGC *gc;
 228   GdkDrawable *src;
 229   gint xsrc, ysrc, xdest, ydest, width, height;
 230 } CopyPixmap;
 231
 232 static void copy_pixmap_region_each(ProcessInfo *key,
 233                                     HashedProcessData *value,
 234                                     CopyPixmap *cp)
 235 {
 236   GdkPixmap *src = cp->src;
 237   GdkPixmap *dest = cp->dest;
 238
 239   if(dest == NULL)
 240     dest = value->pixmap;
 241   if(src == NULL)
 242     src = value->pixmap;
 243
 244   gdk_draw_drawable (dest,
 245       cp->gc,
 246       src,
 247       cp->xsrc, cp->ysrc,
 248       cp->xdest, cp->ydest,
 249       cp->width, cp->height);
 250 }
 251
 252
 253
 254
 255 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 256     GdkGC *gc, GdkDrawable *src,
 257     gint xsrc, gint ysrc,
 258     gint xdest, gint ydest, gint width, gint height)
 259 {
 260   CopyPixmap cp = { dest, gc, src, xsrc, ysrc, xdest, ydest, width, height };
 261
 262   g_hash_table_foreach(process_list->process_hash,
 263                        (GHFunc)copy_pixmap_region_each,
 264                        &cp);
 265 }
 266
 267
 268
 269 typedef struct _RectanglePixmap {
 270   gboolean filled;
 271   gint x, y, width, height;
 272   GdkGC *gc;
 273 } RectanglePixmap;
 274
 275 static void rectangle_pixmap_each(ProcessInfo *key,
 276                                   HashedProcessData *value,
 277                                   RectanglePixmap *rp)
 278 {
 279   if(rp->height == -1)
 280     rp->height = value->height;
 281
 282   gdk_draw_rectangle (value->pixmap,
 283       rp->gc,
 284       rp->filled,
 285       rp->x, rp->y,
 286       rp->width, rp->height);
 287 }
 288
 289
 290
 291
 292 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 293     gboolean filled, gint x, gint y, gint width, gint height)
 294 {
 295   RectanglePixmap rp = { filled, x, y, width, height, gc };
 296
 297   g_hash_table_foreach(process_list->process_hash,
 298                        (GHFunc)rectangle_pixmap_each,
 299                        &rp);
 300 }
 301
 302
 303 /* Renders each pixmaps into on big drawable */
 304 void copy_pixmap_to_screen(ProcessList *process_list,
 305     GdkDrawable *dest,
 306     GdkGC *gc,
 307     gint x, gint y,
 308     gint width, gint height)
 309 {
 310   if(process_list->index_to_pixmap->len == 0) return;
 311   guint cell_height = process_list->cell_height;
 312
 313   /* Get indexes */
 314   gint begin = floor(y/(double)cell_height);
 315   gint end = MIN(ceil((y+height)/(double)cell_height),
 316                  process_list->index_to_pixmap->len);
 317   gint i;
 318
 319   for(i=begin; i<end; i++) {
 320     g_assert(i<process_list->index_to_pixmap->len);
 321     /* Render the pixmap to the screen */
 322     GdkPixmap *pixmap =
 323       //(GdkPixmap*)g_ptr_array_index(process_list->index_to_pixmap, i);
 324       GDK_PIXMAP(g_ptr_array_index(process_list->index_to_pixmap, i));
 325
 326     gdk_draw_drawable (dest,
 327         gc,
 328         pixmap,
 329         x, 0,
 330         x, i*cell_height,
 331         width, cell_height);
 332
 333   }
 334
 335
 336 }
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346 ProcessList *processlist_construct(void)
 347 {
 348   GtkTreeViewColumn *column;
 349   GtkCellRenderer *renderer;
 350
 351   ProcessList* process_list = g_new(ProcessList,1);
 352
 353   process_list->number_of_process = 0;
 354
 355   process_list->current_hash_data = NULL;
 356
 357   /* Create the Process list */
 358   process_list->list_store = gtk_list_store_new (  N_COLUMNS,
 359               G_TYPE_STRING,
 360               G_TYPE_STRING,
 361               G_TYPE_UINT,
 362               G_TYPE_UINT,
 363               G_TYPE_UINT,
 364               G_TYPE_UINT,
 365               G_TYPE_ULONG,
 366               G_TYPE_ULONG,
 367               G_TYPE_ULONG);
 368
 369
 370   process_list->process_list_widget =
 371     gtk_tree_view_new_with_model
 372     (GTK_TREE_MODEL (process_list->list_store));
 373
 374   g_object_unref (G_OBJECT (process_list->list_store));
 375
 376   gtk_tree_sortable_set_default_sort_func(
 377       GTK_TREE_SORTABLE(process_list->list_store),
 378       process_sort_func,
 379       NULL,
 380       NULL);
 381
 382
 383   gtk_tree_sortable_set_sort_column_id(
 384       GTK_TREE_SORTABLE(process_list->list_store),
 385       GTK_TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID,
 386       GTK_SORT_ASCENDING);
 387
 388
 389   process_list->process_hash = g_hash_table_new_full(
 390       process_list_hash_fct, process_list_equ_fct,
 391       destroy_hash_key, destroy_hash_data
 392       );
 393
 394
 395   gtk_tree_view_set_headers_visible(
 396     GTK_TREE_VIEW(process_list->process_list_widget), TRUE);
 397
 398   /* Create a column, associating the "text" attribute of the
 399    * cell_renderer to the first column of the model */
 400   /* Columns alignment : 0.0 : Left    0.5 : Center   1.0 : Right */
 401   renderer = gtk_cell_renderer_text_new ();
 402   process_list->renderer = renderer;
 403
 404         gint vertical_separator;
 405         gtk_widget_style_get (GTK_WIDGET (process_list->process_list_widget),
 406                         "vertical-separator", &vertical_separator,
 407                         NULL);
 408   gtk_cell_renderer_get_size(renderer,
 409       GTK_WIDGET(process_list->process_list_widget),
 410       NULL,
 411       NULL,
 412       NULL,
 413       NULL,
 414       &process_list->cell_height);
 415
 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_fixed_width (column, 45);
 432   gtk_tree_view_append_column (
 433     GTK_TREE_VIEW (process_list->process_list_widget), column);
 434
 435   process_list->button = column->button;
 436
 437   column = gtk_tree_view_column_new_with_attributes ( "Brand",
 438                 renderer,
 439                 "text",
 440                 BRAND_COLUMN,
 441                 NULL);
 442   gtk_tree_view_column_set_alignment (column, 0.0);
 443   gtk_tree_view_column_set_fixed_width (column, 45);
 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 ( "PID",
 448                 renderer,
 449                 "text",
 450                 PID_COLUMN,
 451                 NULL);
 452   gtk_tree_view_append_column (
 453     GTK_TREE_VIEW (process_list->process_list_widget), column);
 454
 455   column = gtk_tree_view_column_new_with_attributes ( "TGID",
 456                 renderer,
 457                 "text",
 458                 TGID_COLUMN,
 459                 NULL);
 460   gtk_tree_view_append_column (
 461     GTK_TREE_VIEW (process_list->process_list_widget), column);
 462
 463   column = gtk_tree_view_column_new_with_attributes ( "PPID",
 464                 renderer,
 465                 "text",
 466                 PPID_COLUMN,
 467                 NULL);
 468   gtk_tree_view_append_column (
 469     GTK_TREE_VIEW (process_list->process_list_widget), column);
 470
 471   column = gtk_tree_view_column_new_with_attributes ( "CPU",
 472                 renderer,
 473                 "text",
 474                 CPU_COLUMN,
 475                 NULL);
 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 ( "Birth sec",
 480                 renderer,
 481                 "text",
 482                 BIRTH_S_COLUMN,
 483                 NULL);
 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_append_column (
 495     GTK_TREE_VIEW (process_list->process_list_widget), column);
 496
 497   column = gtk_tree_view_column_new_with_attributes ( "TRACE",
 498                 renderer,
 499                 "text",
 500                 TRACE_COLUMN,
 501                 NULL);
 502   gtk_tree_view_append_column (
 503     GTK_TREE_VIEW (process_list->process_list_widget), column);
 504
 505
 506   //gtk_tree_view_column_set_visible(column, 0);
 507
 508   g_object_set_data_full(
 509       G_OBJECT(process_list->process_list_widget),
 510       "process_list_Data",
 511       process_list,
 512       (GDestroyNotify)processlist_destroy);
 513
 514   process_list->index_to_pixmap = g_ptr_array_sized_new(ALLOCATE_PROCESSES);
 515
 516   return process_list;
 517 }
 518
 519 void processlist_destroy(ProcessList *process_list)
 520 {
 521   g_debug("processlist_destroy %p", process_list);
 522   g_hash_table_destroy(process_list->process_hash);
 523   process_list->process_hash = NULL;
 524   g_ptr_array_free(process_list->index_to_pixmap, TRUE);
 525
 526   g_free(process_list);
 527   g_debug("processlist_destroy end");
 528 }
 529
 530 static gboolean remove_hash_item(ProcessInfo *process_info,
 531                                  HashedProcessData *hashed_process_data,
 532                                  ProcessList *process_list)
 533 {
 534   GtkTreeIter iter;
 535
 536   iter = hashed_process_data->y_iter;
 537
 538   gtk_list_store_remove (process_list->list_store, &iter);
 539   gdk_pixmap_unref(hashed_process_data->pixmap);
 540
 541   if(likely(process_list->current_hash_data != NULL)) {
 542     if(likely(hashed_process_data ==
 543                 process_list->current_hash_data[process_info->trace_num][process_info->cpu]))
 544       process_list->current_hash_data[process_info->trace_num][process_info->cpu] = NULL;
 545   }
 546   return TRUE; /* remove the element from the hash table */
 547 }
 548
 549 void processlist_clear(ProcessList *process_list)
 550 {
 551   g_info("processlist_clear %p", process_list);
 552
 553   g_hash_table_foreach_remove(process_list->process_hash,
 554                               (GHRFunc)remove_hash_item,
 555                               (gpointer)process_list);
 556   process_list->number_of_process = 0;
 557   update_index_to_pixmap(process_list);
 558 }
 559
 560
 561 GtkWidget *processlist_get_widget(ProcessList *process_list)
 562 {
 563   return process_list->process_list_widget;
 564 }
 565
 566
 567 void destroy_hash_key(gpointer key)
 568 {
 569   g_free(key);
 570 }
 571
 572 void destroy_hash_data(gpointer data)
 573 {
 574   g_free(data);
 575 }
 576
 577
 578 void processlist_set_name(ProcessList *process_list,
 579     GQuark name,
 580     HashedProcessData *hashed_process_data)
 581 {
 582   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 583         PROCESS_COLUMN, g_quark_to_string(name),
 584         -1);
 585 }
 586
 587 void processlist_set_brand(ProcessList *process_list,
 588     GQuark brand,
 589     HashedProcessData *hashed_process_data)
 590 {
 591   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 592         BRAND_COLUMN, g_quark_to_string(brand),
 593         -1);
 594 }
 595
 596 void processlist_set_tgid(ProcessList *process_list,
 597     guint tgid,
 598     HashedProcessData *hashed_process_data)
 599 {
 600   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 601         TGID_COLUMN, tgid,
 602         -1);
 603 }
 604
 605 void processlist_set_ppid(ProcessList *process_list,
 606     guint ppid,
 607     HashedProcessData *hashed_process_data)
 608 {
 609   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 610         PPID_COLUMN, ppid,
 611         -1);
 612 }
 613
 614
 615 int processlist_add(  ProcessList *process_list,
 616       Drawing_t *drawing,
 617       guint pid,
 618       guint tgid,
 619       guint cpu,
 620       guint ppid,
 621       LttTime *birth,
 622       guint trace_num,
 623       GQuark name,
 624       GQuark brand,
 625       guint *height,
 626       ProcessInfo **pm_process_info,
 627       HashedProcessData **pm_hashed_process_data)
 628 {
 629   ProcessInfo *Process_Info = g_new(ProcessInfo, 1);
 630   HashedProcessData *hashed_process_data = g_new(HashedProcessData, 1);
 631   *pm_hashed_process_data = hashed_process_data;
 632   *pm_process_info = Process_Info;
 633
 634   Process_Info->pid = pid;
 635   Process_Info->tgid = tgid;
 636   if(pid == 0)
 637     Process_Info->cpu = cpu;
 638   else
 639     Process_Info->cpu = 0;
 640   Process_Info->ppid = ppid;
 641   Process_Info->birth = *birth;
 642   Process_Info->trace_num = trace_num;
 643
 644   /* When we create it from before state update, we are sure that the
 645    * last event occured before the beginning of the global area.
 646    *
 647    * If it is created after state update, this value (0) will be
 648    * overriden by the new state before anything is drawn.
 649    */
 650   hashed_process_data->x.over = 0;
 651   hashed_process_data->x.over_used = FALSE;
 652   hashed_process_data->x.over_marked = FALSE;
 653   hashed_process_data->x.middle = 0;
 654   hashed_process_data->x.middle_used = FALSE;
 655   hashed_process_data->x.middle_marked = FALSE;
 656   hashed_process_data->x.under = 0;
 657   hashed_process_data->x.under_used = FALSE;
 658   hashed_process_data->x.under_marked = FALSE;
 659   hashed_process_data->next_good_time = ltt_time_zero;
 660
 661   /* Add a new row to the model */
 662   gtk_list_store_append ( process_list->list_store,
 663                           &hashed_process_data->y_iter);
 664
 665   gtk_list_store_set (  process_list->list_store, &hashed_process_data->y_iter,
 666         PROCESS_COLUMN, g_quark_to_string(name),
 667         BRAND_COLUMN, g_quark_to_string(brand),
 668         PID_COLUMN, pid,
 669         TGID_COLUMN, tgid,
 670         PPID_COLUMN, ppid,
 671         CPU_COLUMN, cpu,
 672         BIRTH_S_COLUMN, birth->tv_sec,
 673         BIRTH_NS_COLUMN, birth->tv_nsec,
 674         TRACE_COLUMN, trace_num,
 675         -1);
 676   //gtk_tree_view_set_model(GTK_TREE_VIEW(process_list->process_list_widget),
 677   //                        GTK_TREE_MODEL(process_list->list_store));
 678   //gtk_container_resize_children(GTK_CONTAINER(process_list->process_list_widget));
 679
 680   g_hash_table_insert(process_list->process_hash,
 681         (gpointer)Process_Info,
 682         (gpointer)hashed_process_data);
 683
 684   process_list->number_of_process++;
 685
 686   hashed_process_data->height = process_list->cell_height;
 687
 688   g_assert(hashed_process_data->height != 0);
 689
 690   *height = hashed_process_data->height * process_list->number_of_process;
 691
 692   hashed_process_data->pixmap =
 693         gdk_pixmap_new(drawing->drawing_area->window,
 694                        drawing->alloc_width,
 695                        hashed_process_data->height,
 696                        -1);
 697
 698   // Clear the image
 699   gdk_draw_rectangle (hashed_process_data->pixmap,
 700         drawing->drawing_area->style->black_gc,
 701         TRUE,
 702         0, 0,
 703         drawing->alloc_width,
 704         hashed_process_data->height);
 705
 706   update_index_to_pixmap(process_list);
 707
 708
 709   return 0;
 710 }
 711
 712 int processlist_remove( ProcessList *process_list,
 713       guint pid,
 714       guint cpu,
 715       LttTime *birth,
 716       guint trace_num)
 717 {
 718   ProcessInfo process_info;
 719   HashedProcessData *hashed_process_data;
 720   GtkTreeIter iter;
 721
 722   process_info.pid = pid;
 723   if(pid == 0)
 724     process_info.cpu = cpu;
 725   else
 726     process_info.cpu = 0;
 727   process_info.birth = *birth;
 728   process_info.trace_num = trace_num;
 729
 730
 731   hashed_process_data =
 732     (HashedProcessData*)g_hash_table_lookup(
 733           process_list->process_hash,
 734           &process_info);
 735   if(likely(hashed_process_data != NULL))
 736   {
 737     iter = hashed_process_data->y_iter;
 738
 739     gtk_list_store_remove (process_list->list_store, &iter);
 740
 741     g_hash_table_remove(process_list->process_hash,
 742         &process_info);
 743
 744     if(likely(process_list->current_hash_data != NULL)) {
 745       if(likely(hashed_process_data == process_list->current_hash_data[trace_num][cpu])) {
 746         process_list->current_hash_data[trace_num][cpu] = NULL;
 747       }
 748     }
 749
 750     gdk_pixmap_unref(hashed_process_data->pixmap);
 751
 752     update_index_to_pixmap(process_list);
 753
 754     process_list->number_of_process--;
 755
 756     return 0;
 757   } else {
 758     return 1;
 759   }
 760 }
 761
 762
 763 #if 0
 764 static inline guint get_cpu_number_from_name(GQuark name)
 765 {
 766   const gchar *string;
 767   char *begin;
 768   guint cpu;
 769
 770   string = g_quark_to_string(name);
 771
 772   begin = strrchr(string, '/');
 773   begin++;
 774
 775   g_assert(begin != '\0');
 776
 777   cpu = strtoul(begin, NULL, 10);
 778
 779   return cpu;
 780 }
 781 #endif //0