1 /*
2 * inode.h - Header file for inode.c
3 *
4 * Copyright (C) 1997 R�gis Duchesne
5 * Copyright (C) 1998 Martin von L�wis
6 * Copyright (c) 2001 Anton Altparmakov (AIA)
7 */
8
9 ntfs_attribute *ntfs_find_attr(ntfs_inode *ino, int type, char *name);
10
11 int ntfs_read_attr(ntfs_inode *ino, int type, char *name, __s64 offset,
12 ntfs_io *buf);
13
14 int ntfs_write_attr(ntfs_inode *ino, int type, char *name, __s64 offset,
15 ntfs_io *buf);
16
17 int ntfs_init_inode(ntfs_inode *ino, ntfs_volume *vol, int inum);
18
19 void ntfs_clear_inode(ntfs_inode *ino);
20
21 int ntfs_check_mft_record(ntfs_volume *vol, char *record);
22
23 int ntfs_alloc_inode(ntfs_inode *dir, ntfs_inode *result, const char *filename,
24 int namelen, ntfs_u32);
25
26 int ntfs_alloc_file(ntfs_inode *dir, ntfs_inode *result, char *filename,
27 int namelen);
28
29 int ntfs_update_inode(ntfs_inode *ino);
30
31 int ntfs_vcn_to_lcn(ntfs_inode *ino, int vcn);
32
33 int ntfs_readwrite_attr(ntfs_inode *ino, ntfs_attribute *attr, __s64 offset,
34 ntfs_io *dest);
35
36 int ntfs_allocate_attr_number(ntfs_inode *ino, int *result);
37
38 int ntfs_decompress_run(unsigned char **data, int *length,
39 ntfs_cluster_t *cluster, int *ctype);
40
41 void ntfs_decompress(unsigned char *dest, unsigned char *src, ntfs_size_t l);
42
43 int splice_runlists(ntfs_runlist **rl1, int *r1len, const ntfs_runlist *rl2,
44 int r2len);
45
46 /*
47 * NOTE: Neither of the ntfs_*_bit functions are atomic! But we don't need
48 * them atomic at present as we never operate on shared/cached bitmaps.
49 */
ntfs_test_and_set_bit(unsigned char * byte,const int bit)50 static __inline__ int ntfs_test_and_set_bit(unsigned char *byte, const int bit)
51 {
52 unsigned char *ptr = byte + (bit >> 3);
53 int b = 1 << (bit & 7);
54 int oldbit = *ptr & b ? 1 : 0;
55 *ptr |= b;
56 return oldbit;
57 }
58
59