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 #include <gtk/gtk.h>
  20 #include <glib.h>
  21 #include <string.h>
  22 #include <stdlib.h>
  23 #include <math.h>
  24
  25 #include "processlist.h"
  26 #include "drawing.h"
  27 #include "drawitem.h"
  28
  29 #define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
  30 #define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
  31
  32 /* Preallocated Size of the index_to_pixmap array */
  33 #define ALLOCATE_PROCESSES 1000
  34
  35 /*****************************************************************************
  36  *                       Methods to synchronize process list                 *
  37  *****************************************************************************/
  38
  39 //static inline guint get_cpu_number_from_name(GQuark name);
  40
  41 /* Enumeration of the columns */
  42 enum
  43 {
  44   PROCESS_COLUMN,
  45   PID_COLUMN,
  46   PPID_COLUMN,
  47   CPU_COLUMN,
  48   BIRTH_S_COLUMN,
  49   BIRTH_NS_COLUMN,
  50   TRACE_COLUMN,
  51   N_COLUMNS
  52 };
  53
  54
  55 gint process_sort_func  ( GtkTreeModel *model,
  56         GtkTreeIter *it_a,
  57         GtkTreeIter *it_b,
  58         gpointer user_data)
  59 {
  60   GValue a, b;
  61
  62   memset(&a, 0, sizeof(GValue));
  63   memset(&b, 0, sizeof(GValue));
  64
  65   /* Order by PID */
  66   gtk_tree_model_get_value( model,
  67           it_a,
  68           PID_COLUMN,
  69           &a);
  70
  71   gtk_tree_model_get_value( model,
  72           it_b,
  73           PID_COLUMN,
  74           &b);
  75
  76   if(G_VALUE_TYPE(&a) == G_TYPE_UINT
  77     && G_VALUE_TYPE(&b) == G_TYPE_UINT )
  78   {
  79     {
  80
  81       if(g_value_get_uint(&a) == 0 &&  g_value_get_uint(&b) == 0) {
  82
  83         GValue cpua, cpub;
  84
  85         memset(&cpua, 0, sizeof(GValue));
  86         memset(&cpub, 0, sizeof(GValue));
  87
  88         /* If 0, order by CPU */
  89         gtk_tree_model_get_value( model,
  90                 it_a,
  91                 CPU_COLUMN,
  92                 &cpua);
  93
  94         gtk_tree_model_get_value( model,
  95                 it_b,
  96                 CPU_COLUMN,
  97                 &cpub);
  98
  99         if(G_VALUE_TYPE(&cpua) == G_TYPE_UINT
 100           && G_VALUE_TYPE(&cpub) == G_TYPE_UINT )
 101         {
 102           if(g_value_get_uint(&cpua) > g_value_get_uint(&cpub))
 103           {
 104             g_value_unset(&cpua);
 105             g_value_unset(&cpub);
 106             return 1;
 107           }
 108           if(g_value_get_uint(&cpua) < g_value_get_uint(&cpub))
 109           {
 110             g_value_unset(&cpua);
 111             g_value_unset(&cpub);
 112             return 0;
 113           }
 114         }
 115
 116         g_value_unset(&cpua);
 117         g_value_unset(&cpub);
 118
 119       } else { /* if not 0, order by pid */
 120
 121         if(g_value_get_uint(&a) > g_value_get_uint(&b))
 122         {
 123           g_value_unset(&a);
 124           g_value_unset(&b);
 125           return 1;
 126         }
 127         if(g_value_get_uint(&a) < g_value_get_uint(&b))
 128         {
 129           g_value_unset(&a);
 130           g_value_unset(&b);
 131           return 0;
 132         }
 133       }
 134     }
 135   }
 136
 137   g_value_unset(&a);
 138   g_value_unset(&b);
 139
 140
 141   /* Order by birth second */
 142   gtk_tree_model_get_value( model,
 143           it_a,
 144           BIRTH_S_COLUMN,
 145           &a);
 146
 147   gtk_tree_model_get_value( model,
 148           it_b,
 149           BIRTH_S_COLUMN,
 150           &b);
 151
 152
 153   if(G_VALUE_TYPE(&a) == G_TYPE_ULONG
 154     && G_VALUE_TYPE(&b) == G_TYPE_ULONG )
 155   {
 156     if(g_value_get_ulong(&a) > g_value_get_ulong(&b))
 157     {
 158       g_value_unset(&a);
 159       g_value_unset(&b);
 160       return 1;
 161     }
 162     if(g_value_get_ulong(&a) < g_value_get_ulong(&b))
 163     {
 164       g_value_unset(&a);
 165       g_value_unset(&b);
 166       return 0;
 167     }
 168
 169   }
 170
 171   g_value_unset(&a);
 172   g_value_unset(&b);
 173
 174   /* Order by birth nanosecond */
 175   gtk_tree_model_get_value( model,
 176           it_a,
 177           BIRTH_NS_COLUMN,
 178           &a);
 179
 180   gtk_tree_model_get_value( model,
 181           it_b,
 182           BIRTH_NS_COLUMN,
 183           &b);
 184
 185
 186   if(G_VALUE_TYPE(&a) == G_TYPE_ULONG
 187     && G_VALUE_TYPE(&b) == G_TYPE_ULONG )
 188   {
 189     if(g_value_get_ulong(&a) > g_value_get_ulong(&b))
 190     {
 191       g_value_unset(&a);
 192       g_value_unset(&b);
 193       return 1;
 194     }
 195     if(g_value_get_ulong(&a) < g_value_get_ulong(&b))
 196     {
 197       g_value_unset(&a);
 198       g_value_unset(&b);
 199       return 0;
 200     }
 201
 202   }
 203
 204   g_value_unset(&a);
 205   g_value_unset(&b);
 206
 207   /* Order by trace_num */
 208   gtk_tree_model_get_value( model,
 209           it_a,
 210           TRACE_COLUMN,
 211           &a);
 212
 213   gtk_tree_model_get_value( model,
 214           it_b,
 215           TRACE_COLUMN,
 216           &b);
 217
 218   if(G_VALUE_TYPE(&a) == G_TYPE_ULONG
 219     && G_VALUE_TYPE(&b) == G_TYPE_ULONG )
 220   {
 221     if(g_value_get_ulong(&a) > g_value_get_ulong(&b))
 222     {
 223       g_value_unset(&a);
 224       g_value_unset(&b);
 225       return 1;
 226     }
 227     if(g_value_get_ulong(&a) < g_value_get_ulong(&b))
 228     {
 229       g_value_unset(&a);
 230       g_value_unset(&b);
 231       return 0;
 232     }
 233
 234   }
 235
 236   return 0;
 237
 238 }
 239
 240 static guint process_list_hash_fct(gconstpointer key)
 241 {
 242   guint pid = ((const ProcessInfo*)key)->pid;
 243   return ((pid>>8 ^ pid>>4 ^ pid>>2 ^ pid) ^ ((const ProcessInfo*)key)->cpu);
 244 }
 245
 246 /* If hash is good, should be different */
 247 static gboolean process_list_equ_fct(gconstpointer a, gconstpointer b)
 248 {
 249   const ProcessInfo *pa = (const ProcessInfo*)a;
 250   const ProcessInfo *pb = (const ProcessInfo*)b;
 251
 252   gboolean ret = TRUE;
 253
 254   if(likely(pa->pid != pb->pid))
 255     ret = FALSE;
 256   else if(likely((pa->pid == 0 && (pa->cpu != pb->cpu))))
 257     ret = FALSE;
 258   else if(unlikely(ltt_time_compare(pa->birth, pb->birth) != 0))
 259     ret = FALSE;
 260   else if(unlikely(pa->trace_num != pb->trace_num))
 261     ret = FALSE;
 262
 263   return ret;
 264 }
 265
 266 void destroy_hash_key(gpointer key);
 267
 268 void destroy_hash_data(gpointer data);
 269
 270
 271 static void update_index_to_pixmap_each(ProcessInfo *key,
 272                                         HashedProcessData *value,
 273                                         ProcessList *process_list)
 274 {
 275   guint array_index = processlist_get_index_from_data(process_list, value);
 276
 277   g_assert(array_index < process_list->index_to_pixmap->len);
 278
 279   GdkPixmap **pixmap =
 280     (GdkPixmap**)&g_ptr_array_index(process_list->index_to_pixmap, array_index);
 281
 282   *pixmap = value->pixmap;
 283 }
 284
 285
 286 static void update_index_to_pixmap(ProcessList *process_list)
 287 {
 288   g_ptr_array_set_size(process_list->index_to_pixmap,
 289                        g_hash_table_size(process_list->process_hash));
 290   g_hash_table_foreach(process_list->process_hash,
 291                        (GHFunc)update_index_to_pixmap_each,
 292                        process_list);
 293 }
 294
 295
 296 static void update_pixmap_size_each(ProcessInfo *key,
 297                                     HashedProcessData *value,
 298                                     guint width)
 299 {
 300   GdkPixmap *old_pixmap = value->pixmap;
 301
 302   value->pixmap =
 303         gdk_pixmap_new(old_pixmap,
 304                        width,
 305                        value->height,
 306                        -1);
 307
 308   gdk_pixmap_unref(old_pixmap);
 309 }
 310
 311
 312 void update_pixmap_size(ProcessList *process_list, guint width)
 313 {
 314   g_hash_table_foreach(process_list->process_hash,
 315                        (GHFunc)update_pixmap_size_each,
 316                        (gpointer)width);
 317 }
 318
 319
 320 typedef struct _CopyPixmap {
 321   GdkDrawable *dest;
 322   GdkGC *gc;
 323   GdkDrawable *src;
 324   gint xsrc, ysrc, xdest, ydest, width, height;
 325 } CopyPixmap;
 326
 327 static void copy_pixmap_region_each(ProcessInfo *key,
 328                                     HashedProcessData *value,
 329                                     CopyPixmap *cp)
 330 {
 331   GdkPixmap *src = cp->src;
 332   GdkPixmap *dest = cp->dest;
 333
 334   if(dest == NULL)
 335     dest = value->pixmap;
 336   if(src == NULL)
 337     src = value->pixmap;
 338
 339   gdk_draw_drawable (dest,
 340       cp->gc,
 341       src,
 342       cp->xsrc, cp->ysrc,
 343       cp->xdest, cp->ydest,
 344       cp->width, cp->height);
 345 }
 346
 347
 348
 349
 350 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 351     GdkGC *gc, GdkDrawable *src,
 352     gint xsrc, gint ysrc,
 353     gint xdest, gint ydest, gint width, gint height)
 354 {
 355   CopyPixmap cp = { dest, gc, src, xsrc, ysrc, xdest, ydest, width, height };
 356
 357   g_hash_table_foreach(process_list->process_hash,
 358                        (GHFunc)copy_pixmap_region_each,
 359                        &cp);
 360 }
 361
 362
 363
 364 typedef struct _RectanglePixmap {
 365   gboolean filled;
 366   gint x, y, width, height;
 367   GdkGC *gc;
 368 } RectanglePixmap;
 369
 370 static void rectangle_pixmap_each(ProcessInfo *key,
 371                                   HashedProcessData *value,
 372                                   RectanglePixmap *rp)
 373 {
 374   if(rp->height == -1)
 375     rp->height = value->height;
 376
 377   gdk_draw_rectangle (value->pixmap,
 378       rp->gc,
 379       rp->filled,
 380       rp->x, rp->y,
 381       rp->width, rp->height);
 382 }
 383
 384
 385
 386
 387 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 388     gboolean filled, gint x, gint y, gint width, gint height)
 389 {
 390   RectanglePixmap rp = { filled, x, y, width, height, gc };
 391
 392   g_hash_table_foreach(process_list->process_hash,
 393                        (GHFunc)rectangle_pixmap_each,
 394                        &rp);
 395 }
 396
 397
 398 /* Renders each pixmaps into on big drawable */
 399 void copy_pixmap_to_screen(ProcessList *process_list,
 400     GdkDrawable *dest,
 401     GdkGC *gc,
 402     gint x, gint y,
 403     gint width, gint height)
 404 {
 405   if(process_list->index_to_pixmap->len == 0) return;
 406   guint cell_height = process_list->cell_height;
 407
 408   //cell_height = 24; //FIXME
 409   /* Get indexes */
 410   gint begin = floor(y/(double)cell_height);
 411   gint end = MIN(ceil((y+height)/(double)cell_height),
 412                  process_list->index_to_pixmap->len);
 413   gint i;
 414
 415   for(i=begin; i<end; i++) {
 416     g_assert(i<process_list->index_to_pixmap->len);
 417     /* Render the pixmap to the screen */
 418     GdkPixmap *pixmap =
 419       (GdkPixmap*)g_ptr_array_index(process_list->index_to_pixmap, i);
 420
 421     gdk_draw_drawable (dest,
 422         gc,
 423         pixmap,
 424         x, 0,
 425         x, i*cell_height,
 426         width, cell_height);
 427
 428   }
 429
 430
 431 }
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441 ProcessList *processlist_construct(void)
 442 {
 443   GtkTreeViewColumn *column;
 444   GtkCellRenderer *renderer;
 445
 446   ProcessList* process_list = g_new(ProcessList,1);
 447
 448   process_list->number_of_process = 0;
 449
 450   process_list->current_hash_data = NULL;
 451
 452   /* Create the Process list */
 453   process_list->list_store = gtk_list_store_new (  N_COLUMNS,
 454               G_TYPE_STRING,
 455               G_TYPE_UINT,
 456               G_TYPE_UINT,
 457               G_TYPE_UINT,
 458               G_TYPE_ULONG,
 459               G_TYPE_ULONG,
 460               G_TYPE_ULONG);
 461
 462
 463   process_list->process_list_widget =
 464     gtk_tree_view_new_with_model
 465     (GTK_TREE_MODEL (process_list->list_store));
 466   g_object_unref (G_OBJECT (process_list->list_store));
 467
 468   gtk_tree_sortable_set_sort_func(
 469       GTK_TREE_SORTABLE(process_list->list_store),
 470       PID_COLUMN,
 471       process_sort_func,
 472       NULL,
 473       NULL);
 474
 475   gtk_tree_sortable_set_sort_column_id(
 476       GTK_TREE_SORTABLE(process_list->list_store),
 477       PID_COLUMN,
 478       GTK_SORT_ASCENDING);
 479
 480   process_list->process_hash = g_hash_table_new_full(
 481       process_list_hash_fct, process_list_equ_fct,
 482       destroy_hash_key, destroy_hash_data
 483       );
 484
 485
 486   gtk_tree_view_set_headers_visible(
 487     GTK_TREE_VIEW(process_list->process_list_widget), TRUE);
 488
 489   /* Create a column, associating the "text" attribute of the
 490    * cell_renderer to the first column of the model */
 491   /* Columns alignment : 0.0 : Left    0.5 : Center   1.0 : Right */
 492   renderer = gtk_cell_renderer_text_new ();
 493   process_list->renderer = renderer;
 494
 495   gtk_cell_renderer_get_size(renderer,
 496       GTK_WIDGET(process_list->process_list_widget),
 497       NULL,
 498       NULL,
 499       NULL,
 500       NULL,
 501       &process_list->cell_height);
 502
 503   column = gtk_tree_view_column_new_with_attributes ( "Process",
 504                 renderer,
 505                 "text",
 506                 PROCESS_COLUMN,
 507                 NULL);
 508   gtk_tree_view_column_set_alignment (column, 0.0);
 509   gtk_tree_view_column_set_fixed_width (column, 45);
 510   gtk_tree_view_append_column (
 511     GTK_TREE_VIEW (process_list->process_list_widget), column);
 512
 513   process_list->button = column->button;
 514
 515   column = gtk_tree_view_column_new_with_attributes ( "PID",
 516                 renderer,
 517                 "text",
 518                 PID_COLUMN,
 519                 NULL);
 520   gtk_tree_view_append_column (
 521     GTK_TREE_VIEW (process_list->process_list_widget), column);
 522
 523   column = gtk_tree_view_column_new_with_attributes ( "PPID",
 524                 renderer,
 525                 "text",
 526                 PPID_COLUMN,
 527                 NULL);
 528   gtk_tree_view_append_column (
 529     GTK_TREE_VIEW (process_list->process_list_widget), column);
 530
 531   column = gtk_tree_view_column_new_with_attributes ( "CPU",
 532                 renderer,
 533                 "text",
 534                 CPU_COLUMN,
 535                 NULL);
 536   gtk_tree_view_append_column (
 537     GTK_TREE_VIEW (process_list->process_list_widget), column);
 538
 539   column = gtk_tree_view_column_new_with_attributes ( "Birth sec",
 540                 renderer,
 541                 "text",
 542                 BIRTH_S_COLUMN,
 543                 NULL);
 544   gtk_tree_view_append_column (
 545     GTK_TREE_VIEW (process_list->process_list_widget), column);
 546
 547   //gtk_tree_view_column_set_visible(column, 0);
 548   //
 549   column = gtk_tree_view_column_new_with_attributes ( "Birth nsec",
 550                 renderer,
 551                 "text",
 552                 BIRTH_NS_COLUMN,
 553                 NULL);
 554   gtk_tree_view_append_column (
 555     GTK_TREE_VIEW (process_list->process_list_widget), column);
 556
 557   column = gtk_tree_view_column_new_with_attributes ( "TRACE",
 558                 renderer,
 559                 "text",
 560                 TRACE_COLUMN,
 561                 NULL);
 562   gtk_tree_view_append_column (
 563     GTK_TREE_VIEW (process_list->process_list_widget), column);
 564
 565
 566   //gtk_tree_view_column_set_visible(column, 0);
 567
 568   g_object_set_data_full(
 569       G_OBJECT(process_list->process_list_widget),
 570       "process_list_Data",
 571       process_list,
 572       (GDestroyNotify)processlist_destroy);
 573
 574   process_list->index_to_pixmap = g_ptr_array_sized_new(ALLOCATE_PROCESSES);
 575
 576   return process_list;
 577 }
 578
 579 void processlist_destroy(ProcessList *process_list)
 580 {
 581   g_debug("processlist_destroy %p", process_list);
 582   g_hash_table_destroy(process_list->process_hash);
 583   process_list->process_hash = NULL;
 584   g_ptr_array_free(process_list->index_to_pixmap, TRUE);
 585
 586   g_free(process_list);
 587   g_debug("processlist_destroy end");
 588 }
 589
 590 static gboolean remove_hash_item(ProcessInfo *process_info,
 591                                  HashedProcessData *hashed_process_data,
 592                                  ProcessList *process_list)
 593 {
 594   GtkTreeIter iter;
 595
 596   iter = hashed_process_data->y_iter;
 597
 598   gtk_list_store_remove (process_list->list_store, &iter);
 599   gdk_pixmap_unref(hashed_process_data->pixmap);
 600
 601   if(likely(process_list->current_hash_data != NULL)) {
 602     if(likely(hashed_process_data ==
 603                 process_list->current_hash_data[process_info->cpu]))
 604       process_list->current_hash_data[process_info->cpu] = NULL;
 605   }
 606   return TRUE; /* remove the element from the hash table */
 607 }
 608
 609 void processlist_clear(ProcessList *process_list)
 610 {
 611   g_info("processlist_clear %p", process_list);
 612
 613   g_hash_table_foreach_remove(process_list->process_hash,
 614                               (GHRFunc)remove_hash_item,
 615                               (gpointer)process_list);
 616   process_list->number_of_process = 0;
 617   update_index_to_pixmap(process_list);
 618 }
 619
 620
 621 GtkWidget *processlist_get_widget(ProcessList *process_list)
 622 {
 623   return process_list->process_list_widget;
 624 }
 625
 626
 627 void destroy_hash_key(gpointer key)
 628 {
 629   g_free(key);
 630 }
 631
 632 void destroy_hash_data(gpointer data)
 633 {
 634   g_free(data);
 635 }
 636
 637 int processlist_add(  ProcessList *process_list,
 638       Drawing_t *drawing,
 639       guint pid,
 640       guint cpu,
 641       guint ppid,
 642       LttTime *birth,
 643       guint trace_num,
 644       const gchar *name,
 645       guint *height,
 646       ProcessInfo **pm_process_info,
 647       HashedProcessData **pm_hashed_process_data)
 648 {
 649   ProcessInfo *Process_Info = g_new(ProcessInfo, 1);
 650   HashedProcessData *hashed_process_data = g_new(HashedProcessData, 1);
 651   *pm_hashed_process_data = hashed_process_data;
 652   *pm_process_info = Process_Info;
 653
 654   Process_Info->pid = pid;
 655   if(pid == 0)
 656     Process_Info->cpu = cpu;
 657   else
 658     Process_Info->cpu = 0;
 659   Process_Info->ppid = ppid;
 660   Process_Info->birth = *birth;
 661   Process_Info->trace_num = trace_num;
 662
 663   /* When we create it from before state update, we are sure that the
 664    * last event occured before the beginning of the global area.
 665    *
 666    * If it is created after state update, this value (0) will be
 667    * overriden by the new state before anything is drawn.
 668    */
 669   hashed_process_data->x.over = 0;
 670   hashed_process_data->x.over_used = FALSE;
 671   hashed_process_data->x.over_marked = FALSE;
 672   hashed_process_data->x.middle = 0;
 673   hashed_process_data->x.middle_used = FALSE;
 674   hashed_process_data->x.middle_marked = FALSE;
 675   hashed_process_data->x.under = 0;
 676   hashed_process_data->x.under_used = FALSE;
 677   hashed_process_data->x.under_marked = FALSE;
 678   hashed_process_data->next_good_time = ltt_time_zero;
 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, name,
 686         PID_COLUMN, pid,
 687         PPID_COLUMN, ppid,
 688         CPU_COLUMN, cpu,
 689         BIRTH_S_COLUMN, birth->tv_sec,
 690         BIRTH_NS_COLUMN, birth->tv_nsec,
 691         TRACE_COLUMN, trace_num,
 692         -1);
 693   //gtk_tree_view_set_model(GTK_TREE_VIEW(process_list->process_list_widget),
 694   //                        GTK_TREE_MODEL(process_list->list_store));
 695   //gtk_container_resize_children(GTK_CONTAINER(process_list->process_list_widget));
 696
 697   g_hash_table_insert(process_list->process_hash,
 698         (gpointer)Process_Info,
 699         (gpointer)hashed_process_data);
 700
 701   process_list->number_of_process++;
 702
 703   hashed_process_data->height = process_list->cell_height;
 704
 705   //hashed_process_data->height = 24; // FIXME
 706   g_assert(hashed_process_data->height != 0);
 707
 708   *height = hashed_process_data->height * process_list->number_of_process;
 709
 710   hashed_process_data->pixmap =
 711         gdk_pixmap_new(drawing->drawing_area->window,
 712                        drawing->alloc_width,
 713                        hashed_process_data->height,
 714                        -1);
 715
 716   // Clear the image
 717   gdk_draw_rectangle (hashed_process_data->pixmap,
 718         drawing->drawing_area->style->black_gc,
 719         TRUE,
 720         0, 0,
 721         drawing->alloc_width,
 722         hashed_process_data->height);
 723
 724   update_index_to_pixmap(process_list);
 725
 726
 727   return 0;
 728 }
 729
 730 int processlist_remove( ProcessList *process_list,
 731       guint pid,
 732       guint cpu,
 733       LttTime *birth,
 734       guint trace_num)
 735 {
 736   ProcessInfo process_info;
 737   HashedProcessData *hashed_process_data;
 738   GtkTreeIter iter;
 739
 740   process_info.pid = pid;
 741   if(pid == 0)
 742     process_info.cpu = cpu;
 743   else
 744     process_info.cpu = 0;
 745   process_info.birth = *birth;
 746   process_info.trace_num = trace_num;
 747
 748
 749   hashed_process_data =
 750     (HashedProcessData*)g_hash_table_lookup(
 751           process_list->process_hash,
 752           &process_info);
 753   if(likely(hashed_process_data != NULL))
 754   {
 755     iter = hashed_process_data->y_iter;
 756
 757     gtk_list_store_remove (process_list->list_store, &iter);
 758
 759     g_hash_table_remove(process_list->process_hash,
 760         &process_info);
 761
 762     if(likely(process_list->current_hash_data != NULL)) {
 763       if(likely(hashed_process_data == process_list->current_hash_data[cpu])) {
 764         process_list->current_hash_data[cpu] = NULL;
 765       }
 766     }
 767
 768     gdk_pixmap_unref(hashed_process_data->pixmap);
 769
 770     update_index_to_pixmap(process_list);
 771
 772     process_list->number_of_process--;
 773
 774     return 0;
 775   } else {
 776     return 1;
 777   }
 778 }
 779
 780
 781 #if 0
 782 static inline guint get_cpu_number_from_name(GQuark name)
 783 {
 784   const gchar *string;
 785   char *begin;
 786   guint cpu;
 787
 788   string = g_quark_to_string(name);
 789
 790   begin = strrchr(string, '/');
 791   begin++;
 792
 793   g_assert(begin != '\0');
 794
 795   cpu = strtoul(begin, NULL, 10);
 796
 797   return cpu;
 798 }
 799 #endif //0