2 * Copyright (C) 1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.7 1996-02-07 14:03:48 adam
8 * Work on flat indexed shadow files.
10 * Revision 1.6 1996/02/07 10:08:45 adam
11 * Work on flat shadow (not finished yet).
13 * Revision 1.5 1995/12/15 12:36:52 adam
14 * Moved hash file information to union.
15 * Renamed commit files.
17 * Revision 1.4 1995/12/11 09:03:54 adam
18 * New function: cf_unlink.
19 * New member of commit file head: state (0) deleted, (1) hash file.
21 * Revision 1.3 1995/12/01 16:24:29 adam
22 * Commit files use separate meta file area.
24 * Revision 1.2 1995/12/01 11:37:23 adam
25 * Cached/commit files implemented as meta-files.
27 * Revision 1.1 1995/11/30 08:33:12 adam
28 * Started work on commit facility.
35 #define HASH_BUCKET 31
37 struct CFile_hash_bucket {
38 struct CFile_ph_bucket {
45 struct CFile_hash_bucket *h_next, **h_prev;
46 struct CFile_hash_bucket *lru_next, *lru_prev;
49 #define HASH_BSIZE sizeof(struct CFile_ph_bucket)
53 typedef struct CFile_struct
67 struct CFile_hash_bucket **parray;
68 struct CFile_hash_bucket *bucket_lru_front, *bucket_lru_back;
71 int max_bucket_in_memory;
78 int cf_close (CFile cf);
79 CFile cf_open (MFile mf, MFile_area area, const char *fname, int block_size,
80 int wflag, int *firstp);
81 int cf_read (CFile cf, int no, int offset, int num, void *buf);
82 int cf_write (CFile cf, int no, int offset, int num, const void *buf);
83 void cf_unlink (CFile cf);
84 void cf_commit (CFile cf);