2 * Copyright (c) 1995-1997, Index Data.
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.7 1998-03-13 15:30:50 adam
8 * New functions isc_block_used and isc_block_size. Fixed 'leak'
11 * Revision 1.6 1997/09/17 12:19:10 adam
12 * Zebra version corresponds to YAZ version 1.4.
13 * Changed Zebra server so that it doesn't depend on global common_resource.
15 * Revision 1.5 1997/09/05 15:30:00 adam
16 * Changed prototype for chr_map_input - added const.
17 * Added support for C++, headers uses extern "C" for public definitions.
19 * Revision 1.4 1996/11/08 11:08:01 adam
20 * New internal release.
22 * Revision 1.3 1996/11/01 13:35:03 adam
23 * New element, max_blocks_mem, that control how many blocks of max size
24 * to store in memory during isc_merge.
26 * Revision 1.2 1996/10/29 16:44:42 adam
27 * Added isc_type, isc_block macros.
29 * Revision 1.1 1996/10/29 13:40:37 adam
43 typedef struct ISAMC_s *ISAMC;
45 typedef struct ISAMC_PP_s *ISAMC_PP;
47 typedef struct ISAMC_filecat_s {
48 int bsize; /* block size */
49 int ifill; /* initial fill */
50 int mfill; /* minimum fill */
51 int mblocks; /* maximum blocks */
54 typedef struct ISAMC_M_s {
55 ISAMC_filecat filecat;
57 int (*compare_item)(const void *a, const void *b);
59 #define ISAMC_DECODE 0
60 #define ISAMC_ENCODE 1
61 void *(*code_start)(int mode);
62 void (*code_stop)(int mode, void *p);
63 void (*code_item)(int mode, void *p, char **dst, char **src);
69 typedef struct ISAMC_I_s {
70 int (*read_item)(void *clientData, char **dst, int *insertMode);
74 ISAMC_M isc_getmethod (void);
76 ISAMC isc_open (BFiles bfs, const char *name, int writeflag, ISAMC_M method);
77 int isc_close (ISAMC is);
78 ISAMC_P isc_merge (ISAMC is, ISAMC_P pos, ISAMC_I data);
80 ISAMC_PP isc_pp_open (ISAMC is, ISAMC_P pos);
81 void isc_pp_close (ISAMC_PP pp);
82 int isc_read_item (ISAMC_PP pp, char **dst);
83 int isc_pp_read (ISAMC_PP pp, void *buf);
84 int isc_pp_num (ISAMC_PP pp);
86 int isc_block_used (ISAMC is, int type);
87 int isc_block_size (ISAMC is, int type);
89 #define isc_type(x) ((x) & 7)
90 #define isc_block(x) ((x) >> 3)