ltt/branches/poly/lttv/modules/gui/controlflow/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
  20
  21 #ifndef _PROCESS_LIST_H
  22 #define _PROCESS_LIST_H
  23
  24 #include <gtk/gtk.h>
  25 #include <lttv/state.h>
  26 #include <ltt/ltt.h>
  27
  28 #include "drawitem.h"
  29
  30 /* The process list
  31  *
  32  * Tasks :
  33  * Create a process list
  34  * contains the data for the process list
  35  * tells the height of the process list widget
  36  * provides methods to add/remove process from the list
  37  *  note : the sync with drawing is left to the caller.
  38  * provides helper function to convert a process unique identifier to
  39  *  pixels (in height).
  40  *
  41  * //FIXME : connect the scrolled window adjustment with the list.
  42  */
  43
  44 typedef struct _ProcessInfo {
  45
  46   guint pid;
  47   guint cpu;
  48   guint ppid;
  49   LttTime birth;
  50   guint trace_num;
  51
  52  // gint height_cache;
  53
  54 } ProcessInfo;
  55
  56 typedef struct _HashedProcessData {
  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   // FIXME : add info on last event ?
  78
  79 } HashedProcessData;
  80
  81 struct _ProcessList {
  82
  83   GtkWidget *process_list_widget;
  84   GtkListStore *list_store;
  85   GtkWidget *button; /* one button of the tree view */
  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_cache;
  92
  93   /* Current process, one per cpu */
  94   HashedProcessData **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 cpu, guint ppid,
 121     LttTime *birth, guint trace_num, const gchar *name, guint *height,
 122     ProcessInfo **process_info,
 123     HashedProcessData **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 /* Update the width of each pixmap buffer for each process */
 129 void update_pixmap_size(ProcessList *process_list, guint width);
 130
 131
 132 /* Put src and/or dest to NULL to copy from/to the each PID specific pixmap */
 133 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 134     GdkGC *gc, GdkDrawable *src,
 135     gint xsrc, gint ysrc,
 136     gint xdest, gint ydest, gint width, gint height);
 137
 138 /* If height is -1, the height of each pixmap is used */
 139 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 140     gboolean filled, gint x, gint y, gint width, gint height);
 141
 142 /* Renders each pixmaps into on big drawable */
 143 void copy_pixmap_to_screen(ProcessList *process_list,
 144     GdkDrawable *dest,
 145     GdkGC *gc,
 146     gint x, gint y,
 147     gint width, gint height);
 148
 149
 150
 151
 152 static inline gint get_cell_height(ProcessList *process_list,
 153                                    GtkTreeView *tree_view)
 154 {
 155   gint height = process_list->cell_height_cache;
 156   if(height != -1) return height;
 157   else {
 158     GtkTreeViewColumn *Column = gtk_tree_view_get_column(tree_view, 0);
 159
 160     gtk_tree_view_column_cell_get_size(Column, NULL, NULL, NULL, NULL,
 161                                        &process_list->cell_height_cache);
 162   }
 163   return process_list->cell_height_cache;
 164 }
 165
 166
 167
 168 static inline guint processlist_get_height(ProcessList *process_list)
 169 {
 170   return get_cell_height(process_list,
 171                          (GtkTreeView*)process_list->process_list_widget)
 172         * process_list->number_of_process ;
 173 }
 174
 175
 176 static inline HashedProcessData *processlist_get_process_data(
 177           ProcessList *process_list,
 178           guint pid, guint cpu, LttTime *birth, guint trace_num)
 179 {
 180   ProcessInfo process_info;
 181
 182   process_info.pid = pid;
 183   if(pid == 0)
 184     process_info.cpu = cpu;
 185   else
 186     process_info.cpu = 0;
 187   process_info.birth = *birth;
 188   process_info.trace_num = trace_num;
 189
 190   return  (HashedProcessData*)g_hash_table_lookup(
 191                 process_list->process_hash,
 192                 &process_info);
 193 }
 194
 195
 196 static inline gint processlist_get_pixels_from_data(  ProcessList *process_list,
 197           HashedProcessData *hashed_process_data,
 198           guint *y,
 199           guint *height)
 200 {
 201   gint *path_indices;
 202   GtkTreePath *tree_path;
 203
 204   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 205                     &hashed_process_data->y_iter);
 206   path_indices =  gtk_tree_path_get_indices (tree_path);
 207
 208   *height = get_cell_height(process_list,
 209       (GtkTreeView*)process_list->process_list_widget);
 210   *y = *height * path_indices[0];
 211   gtk_tree_path_free(tree_path);
 212
 213   return 0;
 214
 215 }
 216
 217 static inline guint processlist_get_index_from_data(ProcessList *process_list,
 218           HashedProcessData *hashed_process_data)
 219 {
 220   gint *path_indices;
 221   GtkTreePath *tree_path;
 222   guint ret;
 223
 224   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 225                     &hashed_process_data->y_iter);
 226   path_indices =  gtk_tree_path_get_indices (tree_path);
 227
 228   ret = path_indices[0];
 229
 230   gtk_tree_path_free(tree_path);
 231
 232   return ret;
 233 }
 234
 235
 236
 237 #endif // _PROCESS_LIST_H