src/treestore.h

   1
   2 /** \file treestore.h
   3  *  \brief Header: tree store
   4  *
   5  *  Contains a storage of the file system tree representation.
   6  */
   7
   8 #ifndef MC_TREE_STORE_H
   9 #define MC_TREE_STORE_H
  10
  11 /* Default filenames for the tree */
  12
  13 #define MC_TREE ".mc/Tree"
  14 #define MC_TREE_TMP ".mc/Tree.tmp"
  15
  16 typedef struct tree_entry {
  17     char *name;                 /* The full path of directory */
  18     int sublevel;               /* Number of parent directories (slashes) */
  19     long submask;               /* Bitmask of existing sublevels after this entry */
  20     const char *subname;                /* The last part of name (the actual name) */
  21     unsigned int mark:1;        /* Flag: Is this entry marked (e. g. for delete)? */
  22     unsigned int scanned:1;     /* Flag: childs scanned or not */
  23     struct tree_entry *next;    /* Next item in the list */
  24     struct tree_entry *prev;    /* Previous item in the list */
  25 } tree_entry;
  26
  27 struct TreeStore {
  28     tree_entry *tree_first;     /* First entry in the list */
  29     tree_entry *tree_last;      /* Last entry in the list */
  30     tree_entry *check_start;    /* Start of checked subdirectories */
  31     char *check_name;
  32     GList *add_queue;           /* List of strings of added directories */
  33     unsigned int loaded:1;
  34     unsigned int dirty:1;
  35 };
  36
  37 struct TreeStore *tree_store_get (void);
  38 int tree_store_load (void);
  39 int tree_store_save (void);
  40 void tree_store_remove_entry (const char *name);
  41 tree_entry *tree_store_start_check (const char *path);
  42 void tree_store_mark_checked (const char *subname);
  43 void tree_store_end_check (void);
  44 tree_entry *tree_store_whereis (const char *name);
  45 tree_entry *tree_store_rescan (const char *dir);
  46
  47 /*
  48  * Register/unregister notification functions for "entry_remove"
  49  */
  50 typedef void (*tree_store_remove_fn) (tree_entry *tree, void *data);
  51 void tree_store_add_entry_remove_hook (tree_store_remove_fn callback,
  52                                        void *data);
  53 void tree_store_remove_entry_remove_hook (tree_store_remove_fn callback);
  54
  55 #endif