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 <gdk/gdk.h>
  26 #include <lttv/state.h>
  27 #include <ltt/ltt.h>
  28
  29 #include "drawitem.h"
  30
  31 /* The process list
  32  *
  33  * Tasks :
  34  * Create a process list
  35  * contains the data for the process list
  36  * tells the height of the process list widget
  37  * provides methods to add/remove process from the list
  38  *  note : the sync with drawing is left to the caller.
  39  * provides helper function to convert a process unique identifier to
  40  *  pixels (in height).
  41  *
  42  */
  43
  44
  45 /* Enumeration of the columns */
  46 enum
  47 {
  48   PROCESS_COLUMN,
  49   PID_COLUMN,
  50   PPID_COLUMN,
  51   CPU_COLUMN,
  52   BIRTH_S_COLUMN,
  53   BIRTH_NS_COLUMN,
  54   TRACE_COLUMN,
  55   N_COLUMNS
  56 };
  57
  58
  59 typedef struct _ProcessInfo {
  60
  61   guint pid;
  62   guint cpu;
  63   guint ppid;
  64   LttTime birth;
  65   guint trace_num;
  66
  67  // gint height_cache;
  68
  69 } ProcessInfo;
  70
  71 typedef struct _HashedProcessData {
  72
  73   GdkPixmap *pixmap;  // Pixmap slice containing drawing buffer for the PID
  74   gint height; // height of the pixmap
  75   GtkTreeIter y_iter; // Access quickly to y pos.
  76  // DrawContext *draw_context;
  77   /* Information on current drawing */
  78   struct {
  79     guint over;
  80     gboolean over_used;    /* inform the user that information is incomplete */
  81     gboolean over_marked;  /* inform the user that information is incomplete */
  82     guint middle;
  83     gboolean middle_used;  /* inform the user that information is incomplete */
  84     gboolean middle_marked;/* inform the user that information is incomplete */
  85     guint under;
  86     gboolean under_used;   /* inform the user that information is incomplete */
  87     gboolean under_marked; /* inform the user that information is incomplete */
  88   } x; /* last x position saved by after state update */
  89
  90   LttTime next_good_time; /* precalculate the next time where the next
  91                              pixel is.*/
  92
  93 } HashedProcessData;
  94
  95 struct _ProcessList {
  96
  97   GtkWidget *process_list_widget;
  98   GtkListStore *list_store;
  99   GtkWidget *button; /* one button of the tree view */
 100   GtkCellRenderer *renderer;
 101
 102   /* A hash table by PID to speed up process position find in the list */
 103   GHashTable *process_hash;
 104
 105   guint number_of_process;
 106   gint cell_height;
 107
 108   /* Current process, one per cpu */
 109   HashedProcessData **current_hash_data;
 110
 111   /* Array containing index -> pixmap correspondance. Must be updated
 112    * every time the process list is reordered, process added or removed */
 113   GPtrArray * index_to_pixmap;
 114
 115 };
 116
 117
 118 typedef struct _ProcessList ProcessList;
 119
 120
 121 #ifndef TYPE_DRAWING_T_DEFINED
 122 #define TYPE_DRAWING_T_DEFINED
 123 typedef struct _Drawing_t Drawing_t;
 124 #endif //TYPE_DRAWING_T_DEFINED
 125
 126 ProcessList *processlist_construct(void);
 127 void processlist_destroy(ProcessList *process_list);
 128 GtkWidget *processlist_get_widget(ProcessList *process_list);
 129
 130 void processlist_clear(ProcessList *process_list);
 131
 132 // out : success (0) and height
 133 /* CPU num is only used for PID 0 */
 134 int processlist_add(ProcessList *process_list, Drawing_t * drawing,
 135     guint pid, guint cpu, guint ppid,
 136     LttTime *birth, guint trace_num, GQuark name, guint *height,
 137     ProcessInfo **process_info,
 138     HashedProcessData **hashed_process_data);
 139 // out : success (0) and height
 140 int processlist_remove(ProcessList *process_list, guint pid, guint cpu,
 141     LttTime *birth, guint trace_num);
 142
 143 /* Set the name of a process */
 144 void processlist_set_name(ProcessList *process_list,
 145     GQuark name,
 146     HashedProcessData *hashed_process_data);
 147
 148 /* Set the ppid of a process */
 149 void processlist_set_ppid(ProcessList *process_list,
 150     guint ppid,
 151     HashedProcessData *hashed_process_data);
 152
 153
 154 /* Synchronize the list at the left and the drawing */
 155 void update_index_to_pixmap(ProcessList *process_list);
 156
 157 /* Update the width of each pixmap buffer for each process */
 158 void update_pixmap_size(ProcessList *process_list, guint width);
 159
 160
 161 /* Put src and/or dest to NULL to copy from/to the each PID specific pixmap */
 162 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 163     GdkGC *gc, GdkDrawable *src,
 164     gint xsrc, gint ysrc,
 165     gint xdest, gint ydest, gint width, gint height);
 166
 167 /* If height is -1, the height of each pixmap is used */
 168 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 169     gboolean filled, gint x, gint y, gint width, gint height);
 170
 171 /* Renders each pixmaps into on big drawable */
 172 void copy_pixmap_to_screen(ProcessList *process_list,
 173     GdkDrawable *dest,
 174     GdkGC *gc,
 175     gint x, gint y,
 176     gint width, gint height);
 177
 178
 179 static inline gint get_cell_height(GtkTreeView *TreeView)
 180 {
 181   gint height;
 182   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
 183
 184   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
 185
 186   gint vertical_separator;
 187   gtk_widget_style_get (GTK_WIDGET (TreeView),
 188       "vertical-separator", &vertical_separator,
 189       NULL);
 190
 191   height += vertical_separator;
 192
 193   return height;
 194 }
 195
 196 static inline guint processlist_get_height(ProcessList *process_list)
 197 {
 198   return process_list->cell_height * process_list->number_of_process ;
 199 }
 200
 201
 202 static inline HashedProcessData *processlist_get_process_data(
 203           ProcessList *process_list,
 204           guint pid, guint cpu, LttTime *birth, guint trace_num)
 205 {
 206   ProcessInfo process_info;
 207
 208   process_info.pid = pid;
 209   if(pid == 0)
 210     process_info.cpu = cpu;
 211   else
 212     process_info.cpu = ANY_CPU;
 213   process_info.birth = *birth;
 214   process_info.trace_num = trace_num;
 215
 216   return  (HashedProcessData*)g_hash_table_lookup(
 217                 process_list->process_hash,
 218                 &process_info);
 219 }
 220
 221
 222 static inline gint processlist_get_pixels_from_data(  ProcessList *process_list,
 223           HashedProcessData *hashed_process_data,
 224           guint *y,
 225           guint *height)
 226 {
 227   gint *path_indices;
 228   GtkTreePath *tree_path;
 229
 230   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 231                     &hashed_process_data->y_iter);
 232   path_indices =  gtk_tree_path_get_indices (tree_path);
 233
 234   *height = get_cell_height((GtkTreeView*)process_list->process_list_widget);
 235   *y = *height * path_indices[0];
 236   gtk_tree_path_free(tree_path);
 237
 238   return 0;
 239
 240 }
 241
 242 static inline guint processlist_get_index_from_data(ProcessList *process_list,
 243           HashedProcessData *hashed_process_data)
 244 {
 245   gint *path_indices;
 246   GtkTreePath *tree_path;
 247   guint ret;
 248
 249   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 250                     &hashed_process_data->y_iter);
 251   path_indices =  gtk_tree_path_get_indices (tree_path);
 252
 253   ret = path_indices[0];
 254
 255   gtk_tree_path_free(tree_path);
 256
 257   return ret;
 258 }
 259
 260
 261
 262 #endif // _PROCESS_LIST_H