ROX-Filer/src/dir.h

   1 /*
   2  * $Id$
   3  *
   4  * Thomas Leonard, <tal197@users.sourceforge.net>
   5  */
   6
   7
   8 #ifndef _DIR_H
   9 #define _DIR_H
  10
  11 #include <sys/types.h>
  12 #include <dirent.h>
  13
  14 typedef enum {
  15         DIR_START_SCAN, /* Set 'scanning' indicator */
  16         DIR_END_SCAN,   /* Clear 'scanning' indicator */
  17         DIR_ADD,        /* Add the listed items to the display */
  18         DIR_REMOVE,     /* Remove listed items from display */
  19         DIR_UPDATE,     /* Redraw these items */
  20 } DirAction;
  21
  22 typedef struct _DirUser DirUser;
  23 typedef void (*DirCallback)(Directory *dir,
  24                         DirAction action,
  25                         GPtrArray *items,
  26                         gpointer data);
  27
  28 extern GFSCache *dir_cache;
  29
  30 struct _DirUser
  31 {
  32         DirCallback     callback;
  33         gpointer        data;
  34 };
  35
  36 struct _Directory
  37 {
  38         char    *pathname;      /* Internal use only */
  39         int     ref;
  40         GList   *users;         /* Functions to call on update */
  41         char    *error;         /* NULL => no error */
  42
  43         gboolean        notify_active;  /* Notify timeout is running */
  44         gint            idle_callback;  /* Idle callback ID */
  45
  46         GHashTable      *known_items;   /* What our users know about */
  47         GPtrArray       *new_items;     /* New items to add in */
  48         GPtrArray       *up_items;      /* Items to redraw */
  49         GPtrArray       *gone_items;    /* Items removed */
  50
  51         GList           *recheck_list;  /* Items to check on callback */
  52
  53         gboolean        have_scanned;   /* TRUE after first complete scan */
  54         gboolean        scanning;       /* TRUE if we sent DIR_START_SCAN */
  55
  56         /* Indicates that the directory needs to be rescanned.
  57          * This is cleared when scanning starts, and set when the fscache
  58          * detects that the directory needs to be rescanned and is already
  59          * scanning.
  60          *
  61          * If scanning finishes when this is set, or if someone attaches
  62          * and scanning is not in progress, a rescan is triggered.
  63          */
  64         gboolean        needs_update;
  65 };
  66
  67 void dir_init(void);
  68 void dir_attach(Directory *dir, DirCallback callback, gpointer data);
  69 void dir_detach(Directory *dir, DirCallback callback, gpointer data);
  70 void dir_update(Directory *dir, gchar *pathname);
  71 int dir_item_cmp(const void *a, const void *b);
  72 void refresh_dirs(const char *path);
  73 void dir_check_this(const guchar *path);
  74 DirItem *dir_update_item(Directory *dir, const gchar *leafname);
  75 void dir_rescan(Directory *dir, const guchar *pathname);
  76 void dir_merge_new(Directory *dir);
  77 void dir_force_update_path(const gchar *path);
  78
  79 #endif /* _DIR_H */