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Diffstat (limited to 'unionfs/node.h')
| -rw-r--r-- | unionfs/node.h | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/unionfs/node.h b/unionfs/node.h deleted file mode 100644 index 41ae43ad..00000000 --- a/unionfs/node.h +++ /dev/null @@ -1,135 +0,0 @@ -/* Hurd unionfs - Copyright (C) 2001, 2002 Free Software Foundation, Inc. - Written by Moritz Schulte <moritz@duesseldorf.ccc.de>. - - This program 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 of the - License, or * (at your option) any later version. - - This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 - USA. */ - -/* node management. */ - -#ifndef INCLUDED_NODE_H -#define INCLUDED_NODE_H - -#include <error.h> -#include <sys/stat.h> -#include <hurd/netfs.h> - -typedef struct node node_t; - -#include "lnode.h" - -/* per-ulfs data for each node. */ -struct node_ulfs -{ - int flags; /* Flags associated for this - underlying filesystem. */ - file_t port; /* A port to the underlying - filesystem. */ -}; -typedef struct node_ulfs node_ulfs_t; - -/* Flags. */ - -/* The according port should not be updated. */ -#define FLAG_NODE_ULFS_FIXED 0x00000001 - -struct netnode -{ - lnode_t *lnode; /* A reference to the according light - node. */ - int flags; /* Associated flags. */ - node_ulfs_t *ulfs; /* Array holding data for each - underlying filesystem. */ - int ulfs_num; /* Number of entries in ULFS. */ - node_t *ncache_next; - node_t *ncache_prev; -}; -typedef struct netnode netnode_t; - -/* Flags. */ -#define FLAG_NODE_INVALIDATE 0x00000001 -#define FLAG_NODE_ULFS_UPTODATE 0x00000002 - -typedef struct node_dirent -{ - struct dirent *dirent; - struct node_dirent *next; -} node_dirent_t; - -/* Create a new node, derived from a light node, add a reference to - the light node. */ -error_t node_create (lnode_t *lnode, node_t **node); - -/* Destroy a node, remove one reference from the associated light - node. */ -void node_destroy (node_t *node); - -/* Make sure that all ports to the underlying filesystems of NODE, - which must be locked, are uptodate. */ -error_t node_update (node_t *node); - -/* Create a directory named NAME beneath DIR on all the (writable) underlying - filesystems. */ -error_t node_dir_create (node_t *dir, char *name, mode_t mode); - -/* Remove all directory named NAME beneath DIR on all underlying filesystems. - Fails if we cannot remove all the directories. */ -error_t node_dir_remove (node_t *dir, char *name); - -/* Remove all files named NAME beneath DIR on the underlying filesystems - with FLAGS as openflags. */ -error_t node_unlink_file (node_t *dir, char *name); - -/* Lookup a file named NAME beneath DIR on the underlying filesystems - with FLAGS as openflags. Return the first port successfully looked - up in *PORT and according stat information in *STAT. */ -error_t node_lookup_file (node_t *dir, char *name, int flags, - file_t *port, struct stat *stat); - -/* Initialize per-ulfs data structures for NODE. The ulfs_lock must - be held by the caller. */ -error_t node_ulfs_init (node_t *node); - -/* Read the merged directory entries from NODE, which must be - locked, into *DIRENTS. */ -error_t node_entries_get (node_t *node, node_dirent_t **dirents); - -/* Free DIRENTS. */ -void node_entries_free (node_dirent_t *dirents); - -/* Create the root node (and it's according lnode) and store it in - *ROOT_NODE. */ -error_t node_create_root (node_t **root_node); - -/* Initialize the ports to the underlying filesystems for the root - node. */ -error_t node_init_root (node_t *node); - -/* Return non-zero, if NODE is the root node. */ -#define node_is_root(node) (node)->nn->lnode->dir ? 0 : 1 - -/* Iterate over the per-ulfs data in NODE, which must be locked by the - caller. */ -#define node_ulfs_iterate_unlocked(node) \ - for (node_ulfs_t *node_ulfs = (node)->nn->ulfs; \ - node_ulfs < (node)->nn->ulfs + (node)->nn->ulfs_num; \ - node_ulfs++) - -#define node_ulfs_iterate_reverse_unlocked(node) \ - for (node_ulfs_t *node_ulfs = (node)->nn->ulfs + (node)->nn->ulfs_num - 1;\ - node_ulfs >= (node)->nn->ulfs; \ - node_ulfs--) - -#endif |