* Sebastian Hammer, Adam Dickmeiss
*
* $Log: cfile.h,v $
- * Revision 1.1 1995-11-30 08:33:12 adam
+ * Revision 1.8 1996-04-18 16:02:56 adam
+ * Changed logging a bit.
+ * Removed warning message when commiting flat shadow files.
+ *
+ * Revision 1.7 1996/02/07 14:03:48 adam
+ * Work on flat indexed shadow files.
+ *
+ * Revision 1.6 1996/02/07 10:08:45 adam
+ * Work on flat shadow (not finished yet).
+ *
+ * Revision 1.5 1995/12/15 12:36:52 adam
+ * Moved hash file information to union.
+ * Renamed commit files.
+ *
+ * Revision 1.4 1995/12/11 09:03:54 adam
+ * New function: cf_unlink.
+ * New member of commit file head: state (0) deleted, (1) hash file.
+ *
+ * Revision 1.3 1995/12/01 16:24:29 adam
+ * Commit files use separate meta file area.
+ *
+ * Revision 1.2 1995/12/01 11:37:23 adam
+ * Cached/commit files implemented as meta-files.
+ *
+ * Revision 1.1 1995/11/30 08:33:12 adam
* Started work on commit facility.
*
*/
#ifndef CFILE_H
#define CFILE_H
-#define HASH_BUCKET 63
+#define HASH_BUCKET 15
struct CFile_hash_bucket {
struct CFile_ph_bucket {
#define HASH_BSIZE sizeof(struct CFile_ph_bucket)
+#define CFILE_FLAT 1
+
typedef struct CFile_struct
{
struct CFile_head {
- int hash_size;
- int next_bucket;
+ int state;
int next_block;
int block_size;
+ int hash_size;
+ int first_bucket;
+ int next_bucket;
+ int flat_bucket;
} head;
- int block_fd;
- int hash_fd;
+ MFile block_mf;
+ MFile hash_mf;
int *array;
struct CFile_hash_bucket **parray;
struct CFile_hash_bucket *bucket_lru_front, *bucket_lru_back;
int bucket_in_memory;
int max_bucket_in_memory;
char *iobuf;
- MFile mf;
+ MFile rmf;
+ int no_hits;
+ int no_miss;
} *CFile;
int cf_close (CFile cf);
-CFile cf_open (MFile mf, const char *cname, const char *fname,
- int block_size, int wflag, int *firstp);
+CFile cf_open (MFile mf, MFile_area area, const char *fname, int block_size,
+ int wflag, int *firstp);
int cf_read (CFile cf, int no, int offset, int num, void *buf);
int cf_write (CFile cf, int no, int offset, int num, const void *buf);
+void cf_unlink (CFile cf);
void cf_commit (CFile cf);
#endif