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  * //FIXME : connect the scrolled window adjustment with the list.
  42  */
  43
  44 typedef struct _ProcessInfo {
  45
  46   guint pid;
  47   guint ppid;
  48   LttTime birth;
  49   guint trace_num;
  50
  51 } ProcessInfo;
  52
  53 typedef struct _HashedProcessData {
  54
  55   GtkTreeRowReference *row_ref;
  56  // DrawContext *draw_context;
  57   /* Information on current drawing */
  58   guint x; /* last x position saved by after state update */
  59
  60   // FIXME : add info on last event ?
  61
  62 } HashedProcessData;
  63
  64 struct _ProcessList {
  65
  66   GtkWidget *process_list_widget;
  67   GtkListStore *list_store;
  68   GtkWidget *button; /* one button of the tree view */
  69
  70   /* A hash table by PID to speed up process position find in the list */
  71   GHashTable *process_hash;
  72
  73   guint number_of_process;
  74 };
  75
  76
  77 typedef struct _ProcessList ProcessList;
  78
  79 ProcessList *processlist_construct(void);
  80 void processlist_destroy(ProcessList *process_list);
  81 GtkWidget *processlist_get_widget(ProcessList *process_list);
  82
  83 void processlist_clear(ProcessList *process_list);
  84
  85 // out : success (0) and height
  86 int processlist_add(ProcessList *process_list, guint pid, guint ppid,
  87     LttTime *birth, guint trace_num, const gchar *name, guint *height,
  88     HashedProcessData **hashed_process_data);
  89 // out : success (0) and height
  90 int processlist_remove(ProcessList *process_list, guint pid, LttTime *birth,
  91     guint trace_num);
  92
  93 guint processlist_get_height(ProcessList *process_list);
  94
  95 // Returns 0 on success
  96 gint processlist_get_process_pixels(ProcessList *process_list,
  97         guint pid, LttTime *birth, guint trace_num,
  98         guint *y, guint *height,
  99         HashedProcessData **hashed_process_data);
 100
 101 gint processlist_get_pixels_from_data(  ProcessList *process_list,
 102           ProcessInfo *process_info,
 103           HashedProcessData *hashed_process_data,
 104           guint *y,
 105           guint *height);
 106
 107 #endif // _PROCESS_LIST_H