2 * This Cplant(TM) source code is the property of Sandia National
5 * This Cplant(TM) source code is copyrighted by Sandia National
8 * The redistribution of this Cplant(TM) source code is subject to the
9 * terms of the GNU Lesser General Public License
10 * (see cit/LGPL or http://www.gnu.org/licenses/lgpl.html)
12 * Cplant(TM) Copyright 1998-2003 Sandia Corporation.
13 * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive
14 * license for use of this work by or on behalf of the US Government.
15 * Export of this program may require a license from the United States
20 * This library is free software; you can redistribute it and/or
21 * modify it under the terms of the GNU Lesser General Public
22 * License as published by the Free Software Foundation; either
23 * version 2.1 of the License, or (at your option) any later version.
25 * This library is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
28 * Lesser General Public License for more details.
30 * You should have received a copy of the GNU Lesser General Public
31 * License along with this library; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
34 * Questions or comments about this library should be sent to:
37 * Sandia National Laboratories, New Mexico
39 * Albuquerque, NM 87185-1110
48 #include <sys/types.h>
49 #include <sys/queue.h>
56 * File system abstractipon support.
60 * The "file system switch".
62 static LIST_HEAD(, fsswent) fsswitch = { NULL };
65 * Lookup named entry in the switch.
68 _sysio_fssw_lookup(const char *name)
72 if (!fsswitch.lh_first)
75 fssw = fsswitch.lh_first;
77 if (strcmp(fssw->fssw_name, name) == 0)
79 fssw = fssw->fssw_link.le_next;
88 _sysio_fssw_register(const char *name, struct fssw_ops *ops)
92 fssw = _sysio_fssw_lookup(name);
96 fssw = malloc(sizeof(struct fsswent) + strlen(name) + 1);
99 fssw->fssw_name = (char *)fssw + sizeof(struct fsswent);
100 (void )strcpy((char *)fssw->fssw_name, name);
101 fssw->fssw_ops = *ops;
103 LIST_INSERT_HEAD(&fsswitch, fssw, fssw_link);
113 _sysio_fssw_shutdown()
115 struct fsswent *fssw;
117 while ((fssw = fsswitch.lh_first)) {
118 LIST_REMOVE(fssw, fssw_link);
125 * Allocate and initialize a new file system record.
128 _sysio_fs_new(struct filesys_ops *ops, unsigned flags, void *private)
132 fs = malloc(sizeof(struct filesys));
135 FS_INIT(fs, flags, ops, private);
140 * Dispose of given file system record.
143 _sysio_fs_gone(struct filesys *fs)
146 struct itable_entry *head;
152 head = &fs->fs_itbl[--n];
153 while (head->lh_first)
154 _sysio_i_gone(head->lh_first);
159 (*fs->fs_ops.fsop_gone)(fs);