ltt/branches/poly/lttv/modules/gui/ControlFlow/processlist.h

   1 #ifndef _PROCESS_LIST_H
   2 #define _PROCESS_LIST_H
   3
   4 #include <gtk/gtk.h>
   5 #include <lttv/state.h>
   6 #include <ltt/ltt.h>
   7
   8 #include "drawitem.h"
   9
  10 /* The process list
  11  *
  12  * Tasks :
  13  * Create a process list
  14  * contains the data for the process list
  15  * tells the height of the process list widget
  16  * provides methods to add/remove process from the list
  17  *  note : the sync with drawing is left to the caller.
  18  * provides helper function to convert a process unique identifier to
  19  *  pixels (in height).
  20  *
  21  * //FIXME : connect the scrolled window adjustment with the list.
  22  */
  23
  24 typedef struct _ProcessInfo {
  25
  26   guint pid;
  27   LttTime birth;
  28
  29 } ProcessInfo;
  30
  31 typedef struct _HashedProcessData {
  32
  33   GtkTreeRowReference *row_ref;
  34   DrawContext *draw_context;
  35
  36 } HashedProcessData;
  37
  38 struct _ProcessList {
  39
  40   GtkWidget *process_list_widget;
  41   GtkListStore *list_store;
  42
  43   /* A hash table by PID to speed up process position find in the list */
  44   GHashTable *process_hash;
  45
  46   guint number_of_process;
  47 };
  48
  49
  50 typedef struct _ProcessList ProcessList;
  51
  52 ProcessList *processlist_construct(void);
  53 void processlist_destroy(ProcessList *process_list);
  54 GtkWidget *processlist_get_widget(ProcessList *process_list);
  55
  56 // out : success (0) and height
  57 int processlist_add(ProcessList *process_list, guint pid, LttTime *birth,
  58     gchar *name, guint *height, HashedProcessData **hashed_process_data);
  59 // out : success (0) and height
  60 int processlist_remove(ProcessList *process_list, guint pid, LttTime *birth);
  61
  62 guint processlist_get_height(ProcessList *process_list);
  63
  64 // Returns 0 on success
  65 gint processlist_get_process_pixels(ProcessList *process_list,
  66         guint pid, LttTime *birth,
  67         guint *y, guint *height,
  68         HashedProcessData **hashed_process_data);
  69
  70 gint processlist_get_pixels_from_data(  ProcessList *process_list,
  71           ProcessInfo *process_info,
  72           HashedProcessData *hashed_process_data,
  73           guint *y,
  74           guint *height);
  75
  76 #endif // _PROCESS_LIST_H