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   GQuark name;
  53   guint trace_num;
  54 } ResourceInfo;
  55
  56 typedef struct _HashedResourceData {
  57
  58   GdkPixmap *pixmap;  // Pixmap slice containing drawing buffer for the PID
  59   gint height; // height of the pixmap
  60   GtkTreeIter y_iter; // Access quickly to y pos.
  61  // DrawContext *draw_context;
  62   /* Information on current drawing */
  63   struct {
  64     guint over;
  65     gboolean over_used;    /* inform the user that information is incomplete */
  66     gboolean over_marked;  /* inform the user that information is incomplete */
  67     guint middle;
  68     gboolean middle_used;  /* inform the user that information is incomplete */
  69     gboolean middle_marked;/* inform the user that information is incomplete */
  70     guint under;
  71     gboolean under_used;   /* inform the user that information is incomplete */
  72     gboolean under_marked; /* inform the user that information is incomplete */
  73   } x; /* last x position saved by after state update */
  74
  75   LttTime next_good_time; /* precalculate the next time where the next
  76                              pixel is.*/
  77
  78 } HashedResourceData;
  79
  80 struct _ProcessList {
  81
  82   GtkWidget *process_list_widget;
  83   GtkListStore *list_store;
  84   GtkWidget *button; /* one button of the tree view */
  85   GtkCellRenderer *renderer;
  86
  87   /* A hash table by PID to speed up process position find in the list */
  88   GHashTable *process_hash;
  89
  90   guint number_of_process;
  91   gint cell_height;
  92
  93   /* Current process pointer, one per cpu, one per trace */
  94   HashedResourceData ***current_hash_data;
  95
  96   /* Array containing index -> pixmap correspondance. Must be updated
  97    * every time the process list is reordered, process added or removed */
  98   GPtrArray * index_to_pixmap;
  99
 100 };
 101
 102
 103 typedef struct _ProcessList ProcessList;
 104
 105
 106 #ifndef TYPE_DRAWING_T_DEFINED
 107 #define TYPE_DRAWING_T_DEFINED
 108 typedef struct _Drawing_t Drawing_t;
 109 #endif //TYPE_DRAWING_T_DEFINED
 110
 111 ProcessList *processlist_construct(void);
 112 void processlist_destroy(ProcessList *process_list);
 113 GtkWidget *processlist_get_widget(ProcessList *process_list);
 114
 115 void processlist_clear(ProcessList *process_list);
 116
 117 // out : success (0) and height
 118 /* CPU num is only used for PID 0 */
 119 int processlist_add(ProcessList *process_list, Drawing_t * drawing,
 120     guint pid, guint tgid, guint cpu, guint ppid,
 121     LttTime *birth, guint trace_num, GQuark name, GQuark brand, guint *height,
 122     ResourceInfo **process_info,
 123     HashedResourceData **hashed_process_data);
 124 // out : success (0) and height
 125 int processlist_remove(ProcessList *process_list, guint pid, guint cpu,
 126     LttTime *birth, guint trace_num);
 127
 128 /* Set the name of a process */
 129 void processlist_set_name(ProcessList *process_list,
 130     GQuark name,
 131     HashedResourceData *hashed_process_data);
 132
 133 void processlist_set_brand(ProcessList *process_list,
 134     GQuark brand,
 135     HashedResourceData *hashed_process_data);
 136
 137 /* Set the ppid of a process */
 138 void processlist_set_tgid(ProcessList *process_list,
 139     guint tgid,
 140     HashedResourceData *hashed_process_data);
 141 void processlist_set_ppid(ProcessList *process_list,
 142     guint ppid,
 143     HashedResourceData *hashed_process_data);
 144
 145
 146 /* Synchronize the list at the left and the drawing */
 147 void update_index_to_pixmap(ProcessList *process_list);
 148
 149 /* Update the width of each pixmap buffer for each process */
 150 void update_pixmap_size(ProcessList *process_list, guint width);
 151
 152
 153 /* Put src and/or dest to NULL to copy from/to the each PID specific pixmap */
 154 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 155     GdkGC *gc, GdkDrawable *src,
 156     gint xsrc, gint ysrc,
 157     gint xdest, gint ydest, gint width, gint height);
 158
 159 /* If height is -1, the height of each pixmap is used */
 160 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 161     gboolean filled, gint x, gint y, gint width, gint height);
 162
 163 /* Renders each pixmaps into on big drawable */
 164 void copy_pixmap_to_screen(ProcessList *process_list,
 165     GdkDrawable *dest,
 166     GdkGC *gc,
 167     gint x, gint y,
 168     gint width, gint height);
 169
 170
 171 static inline gint get_cell_height(GtkTreeView *TreeView)
 172 {
 173   gint height;
 174   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
 175
 176   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
 177
 178   gint vertical_separator;
 179   gtk_widget_style_get (GTK_WIDGET (TreeView),
 180       "vertical-separator", &vertical_separator,
 181       NULL);
 182   height += vertical_separator;
 183
 184   return height;
 185 }
 186
 187 static inline guint processlist_get_height(ProcessList *process_list)
 188 {
 189   return process_list->cell_height * process_list->number_of_process ;
 190 }
 191
 192
 193 static inline HashedResourceData *processlist_get_process_data(
 194           ProcessList *process_list, GQuark resource_name, guint trace_num)
 195 {
 196   ResourceInfo resource_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   resource_info.name = resource_name;
 206   resource_info.trace_num = trace_num;
 207
 208   return  (HashedResourceData*)g_hash_table_lookup(
 209                 process_list->process_hash,
 210                 &resource_info);
 211 }
 212
 213
 214 static inline gint processlist_get_pixels_from_data(  ProcessList *process_list,
 215           HashedResourceData *hashed_process_data,
 216           guint *y,
 217           guint *height)
 218 {
 219   gint *path_indices;
 220   GtkTreePath *tree_path;
 221
 222   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 223                     &hashed_process_data->y_iter);
 224   path_indices =  gtk_tree_path_get_indices (tree_path);
 225
 226   *height = get_cell_height((GtkTreeView*)process_list->process_list_widget);
 227   *y = *height * path_indices[0];
 228   gtk_tree_path_free(tree_path);
 229
 230   return 0;
 231
 232 }
 233
 234 static inline guint processlist_get_index_from_data(ProcessList *process_list,
 235           HashedResourceData *hashed_process_data)
 236 {
 237   gint *path_indices;
 238   GtkTreePath *tree_path;
 239   guint ret;
 240
 241   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 242                     &hashed_process_data->y_iter);
 243   path_indices =  gtk_tree_path_get_indices (tree_path);
 244
 245   ret = path_indices[0];
 246
 247   gtk_tree_path_free(tree_path);
 248
 249   return ret;
 250 }
 251
 252
 253
 254 #endif // _PROCESS_LIST_H