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Diffstat (limited to 'unionfs/unionfs.h')
| -rw-r--r-- | unionfs/unionfs.h | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/unionfs/unionfs.h b/unionfs/unionfs.h deleted file mode 100644 index 8f5a0873..00000000 --- a/unionfs/unionfs.h +++ /dev/null @@ -1,90 +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. */ - -/* This unionfs knows about two different kind of nodes: `light nodes' - (in short: lnode) and `nodes' (or: netfs nodes) as used by - libnetfs. They have different tasks and therefore this division - makes sense. - - lnodes form the filesystem tree as seen by the user; most - importantly they contain the `name' of the node. - - lnodes are small and cheap, they are not cached (nodes are). - - lnodes are usually created when a node is looked up and destroyed - when that node gets destroyed; but there are also reasons for - lnodes _not_ being destroyed. - - The distinction makes it possible to keep certain information for - the unionfs in these lnodes while netfs nodes don't have to stay in - memory. - - lnodes have to be looked up first before a node is looked up. Each - lnode contains a pointer to the netfs node, which might be NULL in - case the netfs node is not in memory anymore. */ - -/* General information and properties for the unionfs. */ - -#ifndef INCLUDED_UNIONFS_H -#define INCLUDED_UNIONFS_H - -#include <hurd/netfs.h> -#include <sys/types.h> - -#include "node.h" -#include "lib.h" - -/* Default maximum number of nodes in the cache. */ -#define NCACHE_SIZE 256 - -/* The inode for the root node. */ -#define UNIONFS_ROOT_INODE 1 - -/* Flags for UNIONFS_FLAGS. */ - -/* Print debugging messages to stderr. */ -#define FLAG_UNIONFS_MODE_DEBUG 0x00000001 -/* Use copy-on-write. */ -#define FLAG_UNIONFS_MODE_COW 0x00000002 - -/* Flags describing certain properties of the unionfs. */ -extern int unionfs_flags; - -/* The filesystem id (the pid). */ -extern pid_t fsid; - -/* Mapped time, used for updating node information. */ -extern volatile struct mapped_time_value *maptime; - -/* A port to the underlying node. */ -extern mach_port_t underlying_node; - -/* stat information for the underlying node. */ -extern struct stat underlying_node_stat; - -/* Send a debugging message, if unionfs is in debugging mode. */ -#define debug_msg(fmt, args...) \ - do \ - { \ - if (unionfs_flags & FLAG_UNIONFS_MODE_DEBUG) \ - debug_msg_send (fmt , ## args); \ - } \ - while (0) - -#endif |