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
 149 /* Synchronize the list at the left and the drawing */
 150 void update_index_to_pixmap(ProcessList *process_list);
 151
 152 /* Update the width of each pixmap buffer for each process */
 153 void update_pixmap_size(ProcessList *process_list, guint width);
 154
 155
 156 /* Put src and/or dest to NULL to copy from/to the each PID specific pixmap */
 157 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 158     GdkGC *gc, GdkDrawable *src,
 159     gint xsrc, gint ysrc,
 160     gint xdest, gint ydest, gint width, gint height);
 161
 162 /* If height is -1, the height of each pixmap is used */
 163 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 164     gboolean filled, gint x, gint y, gint width, gint height);
 165
 166 /* Renders each pixmaps into on big drawable */
 167 void copy_pixmap_to_screen(ProcessList *process_list,
 168     GdkDrawable *dest,
 169     GdkGC *gc,
 170     gint x, gint y,
 171     gint width, gint height);
 172
 173
 174 static inline gint get_cell_height(ProcessList *process_list,
 175                 GtkTreeView *TreeView)
 176 {
 177   gint height;
 178   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
 179
 180   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
 181
 182   return height;
 183 }
 184
 185 static inline guint processlist_get_height(ProcessList *process_list)
 186 {
 187   return process_list->cell_height * process_list->number_of_process ;
 188 }
 189
 190
 191 static inline HashedProcessData *processlist_get_process_data(
 192           ProcessList *process_list,
 193           guint pid, guint cpu, LttTime *birth, guint trace_num)
 194 {
 195   ProcessInfo process_info;
 196
 197   process_info.pid = pid;
 198   if(pid == 0)
 199     process_info.cpu = cpu;
 200   else
 201     process_info.cpu = ANY_CPU;
 202   process_info.birth = *birth;
 203   process_info.trace_num = trace_num;
 204
 205   return  (HashedProcessData*)g_hash_table_lookup(
 206                 process_list->process_hash,
 207                 &process_info);
 208 }
 209
 210
 211 static inline gint processlist_get_pixels_from_data(  ProcessList *process_list,
 212           HashedProcessData *hashed_process_data,
 213           guint *y,
 214           guint *height)
 215 {
 216   gint *path_indices;
 217   GtkTreePath *tree_path;
 218
 219   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 220                     &hashed_process_data->y_iter);
 221   path_indices =  gtk_tree_path_get_indices (tree_path);
 222
 223   *height = get_cell_height(process_list,
 224       (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