2 * Copyright (C) 1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.8 1996-04-18 16:02:56 adam
8 * Changed logging a bit.
9 * Removed warning message when commiting flat shadow files.
11 * Revision 1.7 1996/02/07 14:03:48 adam
12 * Work on flat indexed shadow files.
14 * Revision 1.6 1996/02/07 10:08:45 adam
15 * Work on flat shadow (not finished yet).
17 * Revision 1.5 1995/12/15 12:36:52 adam
18 * Moved hash file information to union.
19 * Renamed commit files.
21 * Revision 1.4 1995/12/11 09:03:54 adam
22 * New function: cf_unlink.
23 * New member of commit file head: state (0) deleted, (1) hash file.
25 * Revision 1.3 1995/12/01 16:24:29 adam
26 * Commit files use separate meta file area.
28 * Revision 1.2 1995/12/01 11:37:23 adam
29 * Cached/commit files implemented as meta-files.
31 * Revision 1.1 1995/11/30 08:33:12 adam
32 * Started work on commit facility.
39 #define HASH_BUCKET 15
41 struct CFile_hash_bucket {
42 struct CFile_ph_bucket {
49 struct CFile_hash_bucket *h_next, **h_prev;
50 struct CFile_hash_bucket *lru_next, *lru_prev;
53 #define HASH_BSIZE sizeof(struct CFile_ph_bucket)
57 typedef struct CFile_struct
71 struct CFile_hash_bucket **parray;
72 struct CFile_hash_bucket *bucket_lru_front, *bucket_lru_back;
75 int max_bucket_in_memory;
82 int cf_close (CFile cf);
83 CFile cf_open (MFile mf, MFile_area area, const char *fname, int block_size,
84 int wflag, int *firstp);
85 int cf_read (CFile cf, int no, int offset, int num, void *buf);
86 int cf_write (CFile cf, int no, int offset, int num, const void *buf);
87 void cf_unlink (CFile cf);
88 void cf_commit (CFile cf);