ffs-blt.h (2631B)
1 /* $Id: //depot/blt/srv/vfs/drivers/ffs/ffs-blt.h#2 $ 2 ** 3 ** Copyright 1998 Sidney Cammeresi 4 ** All rights reserved. 5 ** 6 ** Redistribution and use in source and binary forms, with or without 7 ** modification, are permitted provided that the following conditions 8 ** are met: 9 ** 1. Redistributions of source code must retain the above copyright 10 ** notice, this list of conditions, and the following disclaimer. 11 ** 2. Redistributions in binary form must reproduce the above copyright 12 ** notice, this list of conditions, and the following disclaimer in the 13 ** documentation and/or other materials provided with the distribution. 14 ** 3. The name of the author may not be used to endorse or promote products 15 ** derived from this software without specific prior written permission. 16 ** 17 ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef FFS_BLT_H 30 #define FFS_BLT_H 31 32 #include <dirent.h> 33 34 struct ffs_super_data 35 { 36 blkdev_t *dev; 37 struct ffs_super *sbbuf; 38 }; 39 40 struct ffs_cookie 41 { 42 char *buf1, *buf2; 43 int block1, block2; 44 }; 45 46 struct ffs_dircookie 47 { 48 struct vfs_dirent_node *head, *current; 49 }; 50 51 int ffs_mount (struct superblock *super, const char *data, int silent); 52 void ffs_unmount (struct superblock *super); 53 int ffs_read_vnode (struct vnode *vnode); 54 void ffs_drop_vnode (struct vnode *vnode); 55 struct vnode *ffs_walk (struct vnode *parent, const char *path); 56 int ffs_opendir (struct vnode *dir, void **cookie); 57 void ffs_closedir (struct vnode *dir, void *cookie); 58 void ffs_free_dircookie (void *cookie); 59 int ffs_rewinddir (struct vnode *dir, void *cookie); 60 int ffs_readdir (struct vnode *dir, struct dirent *dirent, void *cookie); 61 int ffs_open (struct vnode *dir, void **cookie); 62 int ffs_close (struct vnode *dir, void *cookie); 63 void ffs_free_cookie (void *cookie); 64 int ffs_read (struct vnode *vnode, char *buf, size_t count, off_t offset, 65 size_t *numbytes, void *cookie); 66 int ffs_rstat (struct vnode *vnode, struct stat *buf); 67 68 #endif 69