diff options
Diffstat (limited to 'libtreefs/mdir.c')
-rw-r--r-- | libtreefs/mdir.c | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/libtreefs/mdir.c b/libtreefs/mdir.c deleted file mode 100644 index ddc1516a..00000000 --- a/libtreefs/mdir.c +++ /dev/null @@ -1,92 +0,0 @@ -/* Low-level directory manipulation functions - - Copyright (C) 1995 Free Software Foundation, Inc. - - Written by Miles Bader <miles@gnu.ai.mit.edu> - - This file is part of the GNU Hurd. - - The GNU Hurd is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2, or (at - your option) any later version. - - The GNU Hurd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -/* Low level dir management routines. If called on a non-dir, ENOTDIR is - returned. */ - -/* Add CHILD to DIR as NAME, replacing any existing entry. If OLD_CHILD is - NULL, and NAME already exists in dir, EEXIST is returned, otherwise, any - previous child is replaced and returned in OLD_CHILD. DIR should be - locked. */ -error_t -treefs_mdir_add (struct treefs_node *dir, char *name, - struct treefs_node *child, struct treefs_node **old_child) -{ - if (!treefs_node_isdir (dir)) - return ENOTDIR; - else - { - if (dir->children == NULL) - { - dir->children = treefs_make_node_list (); - if (dir->children == NULL) - return ENOMEM; - } - return treefs_node_list_add (dir->children, name, child, old_child); - } -} - -/* Remove any entry in DIR called NAME. If there is no such entry, ENOENT is - returned. If OLD_CHILD is non-NULL, any removed entry is returned in it. - DIR should be locked. */ -error_t -treefs_mdir_remove (struct treefs_node *dir, char *name, - struct treefs_node *old_child) -{ - if (!treefs_node_isdir (dir)) - return ENOTDIR; - else if (dir->children == NULL) - /* Normally this shouldn't happen. */ - return ENOENT; - else - return treefs_node_list_remove (dir->children, name, old_child); -} - -/* Returns in CHILD any entry called NAME in DIR, or NULL (and ENOENT) if - there isn't such. DIR should be locked. */ -error_t -treefs_mdir_get (struct treefs_node *dir, char *name, - struct treefs_node **child) -{ - if (!treefs_node_isdir (dir)) - return ENOTDIR; - else if (dir->children == NULL) - /* Normally this shouldn't happen. */ - return ENOENT; - else - return treefs_node_list_get (dir->children, name, child); -} - -/* Call FUN on each child of DIR; if FUN returns a non-zero value at any - point, stop iterating and return that value immediately. */ -error_t -treefs_mdir_for_each (struct treefs_node *dir, - error_t (*fun)(char *name, struct treefs_node *child)) -{ - if (!treefs_node_isdir (dir)) - return ENOTDIR; - else if (dir->children == NULL) - /* Normally this shouldn't happen. */ - return 0; - else - return treefs_node_list_for_each (dir->children, fun); -} |