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  */
  42
  43
  44 /* Enumeration of the columns */
  45 enum
  46 {
  47   PROCESS_COLUMN,
  48   PID_COLUMN,
  49   PPID_COLUMN,
  50   CPU_COLUMN,
  51   BIRTH_S_COLUMN,
  52   BIRTH_NS_COLUMN,
  53   TRACE_COLUMN,
  54   N_COLUMNS
  55 };
  56
  57
  58 typedef struct _ProcessInfo {
  59
  60   guint pid;
  61   guint cpu;
  62   guint ppid;
  63   LttTime birth;
  64   guint trace_num;
  65
  66  // gint height_cache;
  67
  68 } ProcessInfo;
  69
  70 typedef struct _HashedProcessData {
  71
  72   GdkPixmap *pixmap;  // Pixmap slice containing drawing buffer for the PID
  73   gint height; // height of the pixmap
  74   GtkTreeIter y_iter; // Access quickly to y pos.
  75  // DrawContext *draw_context;
  76   /* Information on current drawing */
  77   struct {
  78     guint over;
  79     gboolean over_used;    /* inform the user that information is incomplete */
  80     gboolean over_marked;  /* inform the user that information is incomplete */
  81     guint middle;
  82     gboolean middle_used;  /* inform the user that information is incomplete */
  83     gboolean middle_marked;/* inform the user that information is incomplete */
  84     guint under;
  85     gboolean under_used;   /* inform the user that information is incomplete */
  86     gboolean under_marked; /* inform the user that information is incomplete */
  87   } x; /* last x position saved by after state update */
  88
  89   LttTime next_good_time; /* precalculate the next time where the next
  90                              pixel is.*/
  91   // FIXME : add info on last event ?
  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, const gchar *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
 144 /* Synchronize the list at the left and the drawing */
 145 void update_index_to_pixmap(ProcessList *process_list);
 146
 147 /* Update the width of each pixmap buffer for each process */
 148 void update_pixmap_size(ProcessList *process_list, guint width);
 149
 150
 151 /* Put src and/or dest to NULL to copy from/to the each PID specific pixmap */
 152 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 153     GdkGC *gc, GdkDrawable *src,
 154     gint xsrc, gint ysrc,
 155     gint xdest, gint ydest, gint width, gint height);
 156
 157 /* If height is -1, the height of each pixmap is used */
 158 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 159     gboolean filled, gint x, gint y, gint width, gint height);
 160
 161 /* Renders each pixmaps into on big drawable */
 162 void copy_pixmap_to_screen(ProcessList *process_list,
 163     GdkDrawable *dest,
 164     GdkGC *gc,
 165     gint x, gint y,
 166     gint width, gint height);
 167
 168
 169
 170
 171 static inline guint processlist_get_height(ProcessList *process_list)
 172 {
 173   return process_list->cell_height * process_list->number_of_process ;
 174 }
 175
 176
 177 static inline HashedProcessData *processlist_get_process_data(
 178           ProcessList *process_list,
 179           guint pid, guint cpu, LttTime *birth, guint trace_num)
 180 {
 181   ProcessInfo process_info;
 182
 183   process_info.pid = pid;
 184   if(pid == 0)
 185     process_info.cpu = cpu;
 186   else
 187     process_info.cpu = 0;
 188   process_info.birth = *birth;
 189   process_info.trace_num = trace_num;
 190
 191   return  (HashedProcessData*)g_hash_table_lookup(
 192                 process_list->process_hash,
 193                 &process_info);
 194 }
 195
 196
 197 static inline gint processlist_get_pixels_from_data(  ProcessList *process_list,
 198           HashedProcessData *hashed_process_data,
 199           guint *y,
 200           guint *height)
 201 {
 202   gint *path_indices;
 203   GtkTreePath *tree_path;
 204
 205   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 206                     &hashed_process_data->y_iter);
 207   path_indices =  gtk_tree_path_get_indices (tree_path);
 208
 209   *height = get_cell_height(process_list,
 210       (GtkTreeView*)process_list->process_list_widget);
 211   *y = *height * path_indices[0];
 212   gtk_tree_path_free(tree_path);
 213
 214   return 0;
 215
 216 }
 217
 218 static inline guint processlist_get_index_from_data(ProcessList *process_list,
 219           HashedProcessData *hashed_process_data)
 220 {
 221   gint *path_indices;
 222   GtkTreePath *tree_path;
 223   guint ret;
 224
 225   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 226                     &hashed_process_data->y_iter);
 227   path_indices =  gtk_tree_path_get_indices (tree_path);
 228
 229   ret = path_indices[0];
 230
 231   gtk_tree_path_free(tree_path);
 232
 233   return ret;
 234 }
 235
 236
 237
 238 #endif // _PROCESS_LIST_H