root/libutil/dbop.h(145.html)

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/*
 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2006
 *      Tama Communications Corporation
 *
 * This file is part of GNU GLOBAL.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef _DBOP_H_ #define _DBOP_H_ #include "gparam.h" #ifdef USE_DB185_COMPAT #include <db_185.h> #else #include "db.h" #endif #include "regex.h" #include "strbuf.h" #define DBOP_PAGESIZE 8192 #define VERSIONKEY " __.VERSION" typedef struct { /* * (1) COMMON PART */
int mode; /* 0:read, 1:create, 2:modify */
int openflags; /* flags of xxxx_open() */
int ioflags; /* flags of xxxx_first() */
char *lastdat; /* the data of last located record */
int lastsize; /* the size of the lastdat */
char *lastkey; /* the key of last located record */
int lastkeysize; /* the size of the key */
regex_t *preg; /* compiled regular expression */
int unread; /* leave record to read again */
/* * (2) DB185 PART */
DB *db; /* descripter of DB */
char dbname[MAXPATHLEN+1]; /* dbname */
char key[MAXKEYLEN+1]; /* key */
int keylen; /* key length */
char prev[MAXKEYLEN+1]; /* previous key value */
int perm; /* file permission */
} DBOP; /* * openflags */
#define DBOP_DUP 1 /* allow duplicate records */
#define DBOP_REMOVE 2 /* remove file when closed */
/* * ioflags */
#define DBOP_KEY 1 /* read key part */
#define DBOP_PREFIX 2 /* prefixed read */
DBOP *dbop_open(const char *, int, int, int); const char *dbop_get(DBOP *, const char *); void dbop_put(DBOP *, const char *, const char *); void dbop_put_withlen(DBOP *, const char *, const char *, int); void dbop_delete(DBOP *, const char *); void dbop_update(DBOP *, const char *, const char *); const char *dbop_first(DBOP *, const char *, regex_t *, int); const char *dbop_next(DBOP *); void dbop_unread(DBOP *); const char *dbop_lastdat(DBOP *, int *); const char *dbop_getflag(DBOP *); const char *dbop_getoption(DBOP *, const char *); void dbop_putoption(DBOP *, const char *, const char *); int dbop_getversion(DBOP *); void dbop_putversion(DBOP *, int); void dbop_close(DBOP *); #endif /* _DBOP_H_ */

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