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   BRAND_COLUMN,
  50   PID_COLUMN,
  51   TGID_COLUMN,
  52   PPID_COLUMN,
  53   CPU_COLUMN,
  54   BIRTH_S_COLUMN,
  55   BIRTH_NS_COLUMN,
  56   TRACE_COLUMN,
  57   N_COLUMNS
  58 };
  59
  60
  61 typedef struct _ProcessInfo {
  62
  63   guint pid;
  64   guint tgid;
  65   guint cpu;
  66   guint ppid;
  67   LttTime birth;
  68   guint trace_num;
  69
  70  // gint height_cache;
  71
  72 } ProcessInfo;
  73
  74 typedef struct _HashedProcessData {
  75
  76   GdkPixmap *pixmap;  // Pixmap slice containing drawing buffer for the PID
  77   gint height; // height of the pixmap
  78   GtkTreeIter y_iter; // Access quickly to y pos.
  79  // DrawContext *draw_context;
  80   /* Information on current drawing */
  81   struct {
  82     guint over;
  83     gboolean over_used;    /* inform the user that information is incomplete */
  84     gboolean over_marked;  /* inform the user that information is incomplete */
  85     guint middle;
  86     gboolean middle_used;  /* inform the user that information is incomplete */
  87     gboolean middle_marked;/* inform the user that information is incomplete */
  88     guint under;
  89     gboolean under_used;   /* inform the user that information is incomplete */
  90     gboolean under_marked; /* inform the user that information is incomplete */
  91   } x; /* last x position saved by after state update */
  92
  93   LttTime next_good_time; /* precalculate the next time where the next
  94                              pixel is.*/
  95
  96 } HashedProcessData;
  97
  98 struct _ProcessList {
  99
 100   GtkWidget *process_list_widget;
 101   GtkListStore *list_store;
 102   GtkWidget *button; /* one button of the tree view */
 103   GtkCellRenderer *renderer;
 104
 105   /* A hash table by PID to speed up process position find in the list */
 106   GHashTable *process_hash;
 107
 108   guint number_of_process;
 109   gint cell_height;
 110
 111   /* Current process pointer, one per cpu, one per trace */
 112   HashedProcessData ***current_hash_data;
 113
 114   /* Array containing index -> pixmap correspondance. Must be updated
 115    * every time the process list is reordered, process added or removed */
 116   GPtrArray * index_to_pixmap;
 117
 118 };
 119
 120
 121 typedef struct _ProcessList ProcessList;
 122
 123
 124 #ifndef TYPE_DRAWING_T_DEFINED
 125 #define TYPE_DRAWING_T_DEFINED
 126 typedef struct _Drawing_t Drawing_t;
 127 #endif //TYPE_DRAWING_T_DEFINED
 128
 129 ProcessList *processlist_construct(void);
 130 void processlist_destroy(ProcessList *process_list);
 131 GtkWidget *processlist_get_widget(ProcessList *process_list);
 132
 133 void processlist_clear(ProcessList *process_list);
 134
 135 // out : success (0) and height
 136 /* CPU num is only used for PID 0 */
 137 int processlist_add(ProcessList *process_list, Drawing_t * drawing,
 138     guint pid, guint tgid, guint cpu, guint ppid,
 139     LttTime *birth, guint trace_num, GQuark name, GQuark brand, guint *height,
 140     ProcessInfo **process_info,
 141     HashedProcessData **hashed_process_data);
 142 // out : success (0) and height
 143 int processlist_remove(ProcessList *process_list, guint pid, guint cpu,
 144     LttTime *birth, guint trace_num);
 145
 146 /* Set the name of a process */
 147 void processlist_set_name(ProcessList *process_list,
 148     GQuark name,
 149     HashedProcessData *hashed_process_data);
 150
 151 void processlist_set_brand(ProcessList *process_list,
 152     GQuark brand,
 153     HashedProcessData *hashed_process_data);
 154
 155 /* Set the ppid of a process */
 156 void processlist_set_tgid(ProcessList *process_list,
 157     guint tgid,
 158     HashedProcessData *hashed_process_data);
 159 void processlist_set_ppid(ProcessList *process_list,
 160     guint ppid,
 161     HashedProcessData *hashed_process_data);
 162
 163
 164 /* Synchronize the list at the left and the drawing */
 165 void update_index_to_pixmap(ProcessList *process_list);
 166
 167 /* Update the width of each pixmap buffer for each process */
 168 void update_pixmap_size(ProcessList *process_list, guint width);
 169
 170
 171 /* Put src and/or dest to NULL to copy from/to the each PID specific pixmap */
 172 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 173     GdkGC *gc, GdkDrawable *src,
 174     gint xsrc, gint ysrc,
 175     gint xdest, gint ydest, gint width, gint height);
 176
 177 /* If height is -1, the height of each pixmap is used */
 178 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 179     gboolean filled, gint x, gint y, gint width, gint height);
 180
 181 /* Renders each pixmaps into on big drawable */
 182 void copy_pixmap_to_screen(ProcessList *process_list,
 183     GdkDrawable *dest,
 184     GdkGC *gc,
 185     gint x, gint y,
 186     gint width, gint height);
 187
 188
 189 static inline gint get_cell_height(GtkTreeView *TreeView)
 190 {
 191   gint height;
 192   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
 193
 194   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
 195
 196   gint vertical_separator;
 197   gtk_widget_style_get (GTK_WIDGET (TreeView),
 198       "vertical-separator", &vertical_separator,
 199       NULL);
 200   height += vertical_separator;
 201
 202   return height;
 203 }
 204
 205 static inline guint processlist_get_height(ProcessList *process_list)
 206 {
 207   return process_list->cell_height * process_list->number_of_process ;
 208 }
 209
 210
 211 static inline HashedProcessData *processlist_get_process_data(
 212           ProcessList *process_list,
 213           guint pid, guint cpu, LttTime *birth, guint trace_num)
 214 {
 215   ProcessInfo process_info;
 216
 217   process_info.pid = pid;
 218   if(pid == 0)
 219     process_info.cpu = cpu;
 220   else
 221     process_info.cpu = ANY_CPU;
 222   process_info.birth = *birth;
 223   process_info.trace_num = trace_num;
 224
 225   return  (HashedProcessData*)g_hash_table_lookup(
 226                 process_list->process_hash,
 227                 &process_info);
 228 }
 229
 230
 231 static inline gint processlist_get_pixels_from_data(  ProcessList *process_list,
 232           HashedProcessData *hashed_process_data,
 233           guint *y,
 234           guint *height)
 235 {
 236   gint *path_indices;
 237   GtkTreePath *tree_path;
 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   *height = get_cell_height((GtkTreeView*)process_list->process_list_widget);
 244   *y = *height * path_indices[0];
 245   gtk_tree_path_free(tree_path);
 246
 247   return 0;
 248
 249 }
 250
 251 static inline guint processlist_get_index_from_data(ProcessList *process_list,
 252           HashedProcessData *hashed_process_data)
 253 {
 254   gint *path_indices;
 255   GtkTreePath *tree_path;
 256   guint ret;
 257
 258   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 259                     &hashed_process_data->y_iter);
 260   path_indices =  gtk_tree_path_get_indices (tree_path);
 261
 262   ret = path_indices[0];
 263
 264   gtk_tree_path_free(tree_path);
 265
 266   return ret;
 267 }
 268
 269
 270
 271 #endif // _PROCESS_LIST_H