ltt/branches/poly/lttv/modules/gui/resourceview/processlist.h

   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 #ifndef _PROCESS_LIST_H
  20 #define _PROCESS_LIST_H
  21
  22 #include <gtk/gtk.h>
  23 #include <gdk/gdk.h>
  24 #include <lttv/state.h>
  25 #include <ltt/ltt.h>
  26
  27 #include "drawitem.h"
  28
  29 /* The process list
  30  *
  31  * Tasks :
  32  * Create a process list
  33  * contains the data for the process list
  34  * tells the height of the process list widget
  35  * provides methods to add/remove process from the list
  36  *  note : the sync with drawing is left to the caller.
  37  * provides helper function to convert a process unique identifier to
  38  *  pixels (in height).
  39  *
  40  */
  41
  42
  43 /* Enumeration of the columns */
  44 enum
  45 {
  46   NAME_COLUMN,
  47   N_COLUMNS
  48 };
  49
  50
  51 typedef struct _ResourceInfo {
  52   guint name;
  53 } ResourceInfo;
  54
  55 typedef struct _HashedResourceData {
  56
  57   GdkPixmap *pixmap;  // Pixmap slice containing drawing buffer for the PID
  58   gint height; // height of the pixmap
  59   GtkTreeIter y_iter; // Access quickly to y pos.
  60  // DrawContext *draw_context;
  61   /* Information on current drawing */
  62   struct {
  63     guint over;
  64     gboolean over_used;    /* inform the user that information is incomplete */
  65     gboolean over_marked;  /* inform the user that information is incomplete */
  66     guint middle;
  67     gboolean middle_used;  /* inform the user that information is incomplete */
  68     gboolean middle_marked;/* inform the user that information is incomplete */
  69     guint under;
  70     gboolean under_used;   /* inform the user that information is incomplete */
  71     gboolean under_marked; /* inform the user that information is incomplete */
  72   } x; /* last x position saved by after state update */
  73
  74   LttTime next_good_time; /* precalculate the next time where the next
  75                              pixel is.*/
  76
  77 } HashedResourceData;
  78
  79 struct _ProcessList {
  80
  81   GtkWidget *process_list_widget;
  82   GtkListStore *list_store;
  83   GtkWidget *button; /* one button of the tree view */
  84   GtkCellRenderer *renderer;
  85
  86   /* A hash table by PID to speed up process position find in the list */
  87   GHashTable *process_hash;
  88
  89   guint number_of_process;
  90   gint cell_height;
  91
  92   /* Current process pointer, one per cpu, one per trace */
  93   HashedProcessData ***current_hash_data;
  94
  95   /* Array containing index -> pixmap correspondance. Must be updated
  96    * every time the process list is reordered, process added or removed */
  97   GPtrArray * index_to_pixmap;
  98
  99 };
 100
 101
 102 typedef struct _ProcessList ProcessList;
 103
 104
 105 #ifndef TYPE_DRAWING_T_DEFINED
 106 #define TYPE_DRAWING_T_DEFINED
 107 typedef struct _Drawing_t Drawing_t;
 108 #endif //TYPE_DRAWING_T_DEFINED
 109
 110 ProcessList *processlist_construct(void);
 111 void processlist_destroy(ProcessList *process_list);
 112 GtkWidget *processlist_get_widget(ProcessList *process_list);
 113
 114 void processlist_clear(ProcessList *process_list);
 115
 116 // out : success (0) and height
 117 /* CPU num is only used for PID 0 */
 118 int processlist_add(ProcessList *process_list, Drawing_t * drawing,
 119     guint pid, guint tgid, guint cpu, guint ppid,
 120     LttTime *birth, guint trace_num, GQuark name, GQuark brand, guint *height,
 121     ProcessInfo **process_info,
 122     HashedProcessData **hashed_process_data);
 123 // out : success (0) and height
 124 int processlist_remove(ProcessList *process_list, guint pid, guint cpu,
 125     LttTime *birth, guint trace_num);
 126
 127 /* Set the name of a process */
 128 void processlist_set_name(ProcessList *process_list,
 129     GQuark name,
 130     HashedProcessData *hashed_process_data);
 131
 132 void processlist_set_brand(ProcessList *process_list,
 133     GQuark brand,
 134     HashedProcessData *hashed_process_data);
 135
 136 /* Set the ppid of a process */
 137 void processlist_set_tgid(ProcessList *process_list,
 138     guint tgid,
 139     HashedProcessData *hashed_process_data);
 140 void processlist_set_ppid(ProcessList *process_list,
 141     guint ppid,
 142     HashedProcessData *hashed_process_data);
 143
 144
 145 /* Synchronize the list at the left and the drawing */
 146 void update_index_to_pixmap(ProcessList *process_list);
 147
 148 /* Update the width of each pixmap buffer for each process */
 149 void update_pixmap_size(ProcessList *process_list, guint width);
 150
 151
 152 /* Put src and/or dest to NULL to copy from/to the each PID specific pixmap */
 153 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 154     GdkGC *gc, GdkDrawable *src,
 155     gint xsrc, gint ysrc,
 156     gint xdest, gint ydest, gint width, gint height);
 157
 158 /* If height is -1, the height of each pixmap is used */
 159 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 160     gboolean filled, gint x, gint y, gint width, gint height);
 161
 162 /* Renders each pixmaps into on big drawable */
 163 void copy_pixmap_to_screen(ProcessList *process_list,
 164     GdkDrawable *dest,
 165     GdkGC *gc,
 166     gint x, gint y,
 167     gint width, gint height);
 168
 169
 170 static inline gint get_cell_height(GtkTreeView *TreeView)
 171 {
 172   gint height;
 173   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
 174
 175   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
 176
 177   gint vertical_separator;
 178   gtk_widget_style_get (GTK_WIDGET (TreeView),
 179       "vertical-separator", &vertical_separator,
 180       NULL);
 181   height += vertical_separator;
 182
 183   return height;
 184 }
 185
 186 static inline guint processlist_get_height(ProcessList *process_list)
 187 {
 188   return process_list->cell_height * process_list->number_of_process ;
 189 }
 190
 191
 192 static inline HashedProcessData *processlist_get_process_data(
 193           ProcessList *process_list,
 194           guint pid, guint cpu, LttTime *birth, guint trace_num)
 195 {
 196   ProcessInfo process_info;
 197
 198   process_info.pid = pid;
 199   if(pid == 0)
 200     process_info.cpu = cpu;
 201   else
 202     process_info.cpu = ANY_CPU;
 203   process_info.birth = *birth;
 204   process_info.trace_num = trace_num;
 205
 206   return  (HashedProcessData*)g_hash_table_lookup(
 207                 process_list->process_hash,
 208                 &process_info);
 209 }
 210
 211
 212 static inline gint processlist_get_pixels_from_data(  ProcessList *process_list,
 213           HashedProcessData *hashed_process_data,
 214           guint *y,
 215           guint *height)
 216 {
 217   gint *path_indices;
 218   GtkTreePath *tree_path;
 219
 220   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 221                     &hashed_process_data->y_iter);
 222   path_indices =  gtk_tree_path_get_indices (tree_path);
 223
 224   *height = get_cell_height((GtkTreeView*)process_list->process_list_widget);
 225   *y = *height * path_indices[0];
 226   gtk_tree_path_free(tree_path);
 227
 228   return 0;
 229
 230 }
 231
 232 static inline guint processlist_get_index_from_data(ProcessList *process_list,
 233           HashedProcessData *hashed_process_data)
 234 {
 235   gint *path_indices;
 236   GtkTreePath *tree_path;
 237   guint ret;
 238
 239   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 240                     &hashed_process_data->y_iter);
 241   path_indices =  gtk_tree_path_get_indices (tree_path);
 242
 243   ret = path_indices[0];
 244
 245   gtk_tree_path_free(tree_path);
 246
 247   return ret;
 248 }
 249
 250
 251
 252 #endif // _PROCESS_LIST_H