1 /* $Id: isamc.h,v 1.12 2004-06-01 12:56:38 adam Exp $
2 Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004
5 This file is part of the Zebra server.
7 Zebra is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with Zebra; see the file LICENSE.zebra. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
34 typedef struct ISAMC_s *ISAMC;
36 typedef struct ISAMC_PP_s *ISAMC_PP;
38 typedef struct ISAMC_filecat_s {
39 int bsize; /* block size */
40 int ifill; /* initial fill */
41 int mfill; /* minimum fill */
42 int mblocks; /* maximum blocks */
45 typedef struct ISAMC_M_s {
46 ISAMC_filecat filecat;
48 int (*compare_item)(const void *a, const void *b);
49 void (*log_item)(int logmask, const void *p, const char *txt);
51 #define ISAMC_DECODE 0
52 #define ISAMC_ENCODE 1
53 void *(*code_start)(int mode);
54 void (*code_stop)(int mode, void *p);
55 void (*code_item)(int mode, void *p, char **dst, char **src);
56 void (*code_reset)(void *p);
62 typedef struct ISAMC_I_s {
63 int (*read_item)(void *clientData, char **dst, int *insertMode);
67 void isc_getmethod (ISAMC_M *m);
69 ISAMC isc_open (BFiles bfs, const char *name, int writeflag, ISAMC_M *method);
70 int isc_close (ISAMC is);
71 ISAMC_P isc_merge (ISAMC is, ISAMC_P pos, ISAMC_I *data);
73 ISAMC_PP isc_pp_open (ISAMC is, ISAMC_P pos);
74 void isc_pp_close (ISAMC_PP pp);
75 int isc_read_item (ISAMC_PP pp, char **dst);
76 int isc_pp_read (ISAMC_PP pp, void *buf);
77 int isc_pp_num (ISAMC_PP pp);
79 int isc_block_used (ISAMC is, int type);
80 int isc_block_size (ISAMC is, int type);
82 #define isc_type(x) ((x) & 7)
83 #define isc_block(x) ((x) >> 3)