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
  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   BRAND_COLUMN,
  49   PID_COLUMN,
  50   TGID_COLUMN,
  51   PPID_COLUMN,
  52   CPU_COLUMN,
  53   BIRTH_S_COLUMN,
  54   BIRTH_NS_COLUMN,
  55   TRACE_COLUMN,
  56   N_COLUMNS
  57 };
  58
  59
  60 typedef struct _ProcessInfo {
  61
  62   guint pid;
  63   guint tgid;
  64   guint cpu;
  65   guint ppid;
  66   LttTime birth;
  67   guint trace_num;
  68
  69  // gint height_cache;
  70
  71 } ProcessInfo;
  72
  73 typedef struct _HashedProcessData {
  74
  75   GdkPixmap *pixmap;  // Pixmap slice containing drawing buffer for the PID
  76   gint height; // height of the pixmap
  77   GtkTreeIter y_iter; // Access quickly to y pos.
  78  // DrawContext *draw_context;
  79   /* Information on current drawing */
  80   struct {
  81     guint over;
  82     gboolean over_used;    /* inform the user that information is incomplete */
  83     gboolean over_marked;  /* inform the user that information is incomplete */
  84     guint middle;
  85     gboolean middle_used;  /* inform the user that information is incomplete */
  86     gboolean middle_marked;/* inform the user that information is incomplete */
  87     guint under;
  88     gboolean under_used;   /* inform the user that information is incomplete */
  89     gboolean under_marked; /* inform the user that information is incomplete */
  90   } x; /* last x position saved by after state update */
  91
  92   LttTime next_good_time; /* precalculate the next time where the next
  93                              pixel is.*/
  94
  95 } HashedProcessData;
  96
  97 struct _ProcessList {
  98
  99   GtkWidget *process_list_widget;
 100   GtkListStore *list_store;
 101   GtkWidget *button; /* one button of the tree view */
 102   GtkCellRenderer *renderer;
 103
 104   /* A hash table by PID to speed up process position find in the list */
 105   GHashTable *process_hash;
 106
 107   guint number_of_process;
 108   gint cell_height;
 109
 110   /* Current process pointer, one per cpu, one per trace */
 111   HashedProcessData ***current_hash_data;
 112
 113   /* Array containing index -> pixmap correspondance. Must be updated
 114    * every time the process list is reordered, process added or removed */
 115   GPtrArray * index_to_pixmap;
 116
 117 };
 118
 119
 120 typedef struct _ProcessList ProcessList;
 121
 122
 123 #ifndef TYPE_DRAWING_T_DEFINED
 124 #define TYPE_DRAWING_T_DEFINED
 125 typedef struct _Drawing_t Drawing_t;
 126 #endif //TYPE_DRAWING_T_DEFINED
 127
 128 ProcessList *processlist_construct(void);
 129 void processlist_destroy(ProcessList *process_list);
 130 GtkWidget *processlist_get_widget(ProcessList *process_list);
 131
 132 void processlist_clear(ProcessList *process_list);
 133
 134 // out : success (0) and height
 135 /* CPU num is only used for PID 0 */
 136 int processlist_add(ProcessList *process_list, Drawing_t * drawing,
 137     guint pid, guint tgid, guint cpu, guint ppid,
 138     LttTime *birth, guint trace_num, GQuark name, GQuark brand, guint *height,
 139     ProcessInfo **process_info,
 140     HashedProcessData **hashed_process_data);
 141 // out : success (0) and height
 142 int processlist_remove(ProcessList *process_list, guint pid, guint cpu,
 143     LttTime *birth, guint trace_num);
 144
 145 /* Set the name of a process */
 146 void processlist_set_name(ProcessList *process_list,
 147     GQuark name,
 148     HashedProcessData *hashed_process_data);
 149
 150 void processlist_set_brand(ProcessList *process_list,
 151     GQuark brand,
 152     HashedProcessData *hashed_process_data);
 153
 154 /* Set the ppid of a process */
 155 void processlist_set_tgid(ProcessList *process_list,
 156     guint tgid,
 157     HashedProcessData *hashed_process_data);
 158 void processlist_set_ppid(ProcessList *process_list,
 159     guint ppid,
 160     HashedProcessData *hashed_process_data);
 161
 162
 163 /* Synchronize the list at the left and the drawing */
 164 void update_index_to_pixmap(ProcessList *process_list);
 165
 166 /* Update the width of each pixmap buffer for each process */
 167 void update_pixmap_size(ProcessList *process_list, guint width);
 168
 169
 170 /* Put src and/or dest to NULL to copy from/to the each PID specific pixmap */
 171 void copy_pixmap_region(ProcessList *process_list, GdkDrawable *dest,
 172     GdkGC *gc, GdkDrawable *src,
 173     gint xsrc, gint ysrc,
 174     gint xdest, gint ydest, gint width, gint height);
 175
 176 /* If height is -1, the height of each pixmap is used */
 177 void rectangle_pixmap(ProcessList *process_list, GdkGC *gc,
 178     gboolean filled, gint x, gint y, gint width, gint height);
 179
 180 /* Renders each pixmaps into on big drawable */
 181 void copy_pixmap_to_screen(ProcessList *process_list,
 182     GdkDrawable *dest,
 183     GdkGC *gc,
 184     gint x, gint y,
 185     gint width, gint height);
 186
 187
 188 static inline gint get_cell_height(GtkTreeView *TreeView)
 189 {
 190   gint height;
 191   GtkTreeViewColumn *column = gtk_tree_view_get_column(TreeView, 0);
 192
 193   gtk_tree_view_column_cell_get_size(column, NULL, NULL, NULL, NULL, &height);
 194
 195   gint vertical_separator;
 196   gtk_widget_style_get (GTK_WIDGET (TreeView),
 197       "vertical-separator", &vertical_separator,
 198       NULL);
 199   height += vertical_separator;
 200
 201   return height;
 202 }
 203
 204 static inline guint processlist_get_height(ProcessList *process_list)
 205 {
 206   return process_list->cell_height * process_list->number_of_process ;
 207 }
 208
 209
 210 static inline HashedProcessData *processlist_get_process_data(
 211           ProcessList *process_list,
 212           guint pid, guint cpu, LttTime *birth, guint trace_num)
 213 {
 214   ProcessInfo process_info;
 215
 216   process_info.pid = pid;
 217   if(pid == 0)
 218     process_info.cpu = cpu;
 219   else
 220     process_info.cpu = ANY_CPU;
 221   process_info.birth = *birth;
 222   process_info.trace_num = trace_num;
 223
 224   return  (HashedProcessData*)g_hash_table_lookup(
 225                 process_list->process_hash,
 226                 &process_info);
 227 }
 228
 229
 230 static inline gint processlist_get_pixels_from_data(  ProcessList *process_list,
 231           HashedProcessData *hashed_process_data,
 232           guint *y,
 233           guint *height)
 234 {
 235   gint *path_indices;
 236   GtkTreePath *tree_path;
 237
 238   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 239                     &hashed_process_data->y_iter);
 240   path_indices =  gtk_tree_path_get_indices (tree_path);
 241
 242   *height = get_cell_height((GtkTreeView*)process_list->process_list_widget);
 243   *y = *height * path_indices[0];
 244   gtk_tree_path_free(tree_path);
 245
 246   return 0;
 247
 248 }
 249
 250 static inline guint processlist_get_index_from_data(ProcessList *process_list,
 251           HashedProcessData *hashed_process_data)
 252 {
 253   gint *path_indices;
 254   GtkTreePath *tree_path;
 255   guint ret;
 256
 257   tree_path = gtk_tree_model_get_path((GtkTreeModel*)process_list->list_store,
 258                     &hashed_process_data->y_iter);
 259   path_indices =  gtk_tree_path_get_indices (tree_path);
 260
 261   ret = path_indices[0];
 262
 263   gtk_tree_path_free(tree_path);
 264
 265   return ret;
 266 }
 267
 268
 269
 270 #endif // _PROCESS_LIST_H