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- /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- /*-
- * Copyright (c) 1990, 1993, 1994
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)db.h 8.7 (Berkeley) 6/16/94
- */
-
- #ifndef _DB_H_
- #define _DB_H_
-
- #include "prtypes.h"
-
- #ifdef __sgi
- #define BYTE_ORDER BIG_ENDIAN
- #define BIG_ENDIAN 4321
- #define LITTLE_ENDIAN 1234 /* LSB first: i386, vax, all NT risc */
- #define __BIT_TYPES_DEFINED__
- #endif
-
- #ifdef __sun
- #define BIG_ENDIAN 4321
- #define LITTLE_ENDIAN 1234 /* LSB first: i386, vax, all NT risc */
-
- #ifndef SVR4
- /* compat.h is only in 4.1.3 machines. - dp */
- #include <compat.h>
- #endif
-
- /* XXX - dp
- * Need to find a general way of defining endian-ness in SunOS 5.3
- * SunOS 5.4 defines _BIG_ENDIAN and _LITTLE_ENDIAN
- * SunOS 5.3 does nothing like this.
- */
-
- #ifndef BYTE_ORDER
-
- #if defined(_BIG_ENDIAN)
- #define BYTE_ORDER BIG_ENDIAN
- #elif defined(_LITTLE_ENDIAN)
- #define BYTE_ORDER LITTLE_ENDIAN
- #elif !defined(SVR4)
- /* 4.1.3 is always BIG_ENDIAN as it was released only on sparc platforms. */
- #define BYTE_ORDER BIG_ENDIAN
- #elif !defined(vax) && !defined(ntohl) && !defined(lint) && !defined(i386)
- /* 5.3 big endian. Copied this above line from sys/byteorder.h */
- /* Now we are in a 5.3 SunOS rather non 5.4 or above SunOS */
- #define BYTE_ORDER BIG_ENDIAN
- #else
- #define BYTE_ORDER LITTLE_ENDIAN
- #endif
-
- #endif /* !BYTE_ORDER */
- #endif /* __sun */
-
- #ifdef __linux
- # include <endian.h>
- # ifndef BYTE_ORDER
- # define BYTE_ORDER __BYTE_ORDER
- # define BIG_ENDIAN __BIG_ENDIAN
- # define LITTLE_ENDIAN __LITTLE_ENDIAN
- # endif
- #endif /* __linux */
-
- #if defined(SCO) || defined(UNIXWARE) || defined(SNI) || defined(NCR) || defined(NEC)
- #include <sys/types.h>
- #include <sys/byteorder.h>
- #endif
-
- #ifdef SCO
- #include <sys/bitypes.h>
- #define MAXPATHLEN 1024
- #endif
-
- #ifdef SNI
- #define BYTE_ORDER BIG_ENDIAN
- #define BIG_ENDIAN 4321
- #define LITTLE_ENDIAN 1234
- #endif
-
- #ifdef NCR
- #include <sys/endian.h>
- #endif
-
- #ifdef macintosh
- #include <unix.h>
- #endif
-
- #ifndef macintosh
- #include <fcntl.h>
- #endif
-
- #if defined(_WINDOWS) || defined(XP_OS2)
- #include <stdio.h>
- #include <io.h>
- #include <limits.h>
-
- #ifndef XP_OS2
- #define MAXPATHLEN 1024
- #else
- #include "os2file.h" /* includes dirent.h */
- #endif
-
- #define EFTYPE EINVAL /* POSIX 1003.1 format errno. */
-
- #ifndef STDERR_FILENO
- #define STDIN_FILENO 0 /* ANSI C #defines */
- #define STDOUT_FILENO 1
- #define STDERR_FILENO 2
- #endif
-
- #ifndef O_ACCMODE /* POSIX 1003.1 access mode mask. */
- #define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
- #endif
-
- #ifdef BYTE_ORDER
- #undef BYTE_ORDER
- #endif
-
- #define BYTE_ORDER LITTLE_ENDIAN
- #define LITTLE_ENDIAN 1234 /* LSB first: i386, vax, all NT risc */
- #define BIG_ENDIAN 4321
- #endif
-
- #if defined(_WINDOWS) && !defined(_WIN32)
- /* 16 bit windows defines */
- #define MAX_PAGE_NUMBER 0xffffffff /* >= # of pages in a file */
- #endif
-
-
- #ifdef macintosh
- #include <stdio.h>
- #include "xp_mcom.h"
- #ifndef NSPR20
- #include "prmacos.h"
- #endif
- #define BIG_ENDIAN 4321
- #define LITTLE_ENDIAN 1234
- #define BYTE_ORDER BIG_ENDIAN
- #define O_ACCMODE 3 /* Mask for file access modes */
- #define EFTYPE 2000
- XP_BEGIN_PROTOS
- int mkstemp(const char *path);
- XP_END_PROTOS
- #endif /* MACINTOSH */
-
- #if defined(XP_OS2)
- #include <xp_mcom.h>
- #include <pros2os.h>
- XP_BEGIN_PROTOS
- int mkstemp(char *path);
- XP_END_PROTOS
- #endif
-
- #ifndef macintosh
- #include <sys/types.h>
- #endif
-
- #if !defined(_WINDOWS) && !defined(macintosh) && !defined(XP_OS2)
- #include <sys/stat.h>
- #include <errno.h>
- #endif
-
- #include "cdefs.h"
-
- #ifndef _WINDOWS /* included above to prevent spurious warnings chouck 12-Sep-95 */
- #include <limits.h>
- #endif
-
- #ifndef MIN
- #define MIN(x, y) (((x) < (y)) ? (x) : (y))
- #endif
-
- #ifndef MAX
- #define MAX(x, y) (((x) > (y)) ? (x) : (y))
- #endif
-
- #define RET_ERROR -1 /* Return values. */
- #define RET_SUCCESS 0
- #define RET_SPECIAL 1
-
- #if defined(__386BSD__) || defined(SCO)
- #define __BIT_TYPES_DEFINED__
- #endif
-
- #define MAX_PAGE_NUMBER 0xffffffff /* >= # of pages in a file */
-
- #ifndef __sgi
- typedef uint32 pgno_t;
- #endif
-
- #define MAX_PAGE_OFFSET 65535 /* >= # of bytes in a page */
- typedef uint16 indx_t;
- #define MAX_REC_NUMBER 0xffffffff /* >= # of records in a tree */
- typedef uint32 recno_t;
-
- /* define EFTYPE since most don't */
- #ifndef EFTYPE
- #define EFTYPE EINVAL /* POSIX 1003.1 format errno. */
- #endif
-
- /* Key/data structure -- a Data-Base Thang. */
- typedef struct {
- void *data; /* data */
- size_t size; /* data length */
- } DBT;
-
- /* Routine flags. */
- #define R_CURSOR 1 /* del, put, seq */
- #define __R_UNUSED 2 /* UNUSED */
- #define R_FIRST 3 /* seq */
- #define R_IAFTER 4 /* put (RECNO) */
- #define R_IBEFORE 5 /* put (RECNO) */
- #define R_LAST 6 /* seq (BTREE, RECNO) */
- #define R_NEXT 7 /* seq */
- #define R_NOOVERWRITE 8 /* put */
- #define R_PREV 9 /* seq (BTREE, RECNO) */
- #define R_SETCURSOR 10 /* put (RECNO) */
- #define R_RECNOSYNC 11 /* sync (RECNO) */
-
- typedef enum { DB_BTREE, DB_HASH, DB_RECNO } DBTYPE;
-
- typedef enum { LockOutDatabase, UnlockDatabase } DBLockFlagEnum;
-
- /*
- * !!!
- * The following flags are included in the dbopen(3) call as part of the
- * open(2) flags. In order to avoid conflicts with the open flags, start
- * at the top of the 16 or 32-bit number space and work our way down. If
- * the open flags were significantly expanded in the future, it could be
- * a problem. Wish I'd left another flags word in the dbopen call.
- *
- * !!!
- * None of this stuff is implemented yet. The only reason that it's here
- * is so that the access methods can skip copying the key/data pair when
- * the DB_LOCK flag isn't set.
- */
- #if UINT_MAX > 65535
- #define DB_LOCK 0x20000000 /* Do locking. */
- #define DB_SHMEM 0x40000000 /* Use shared memory. */
- #define DB_TXN 0x80000000 /* Do transactions. */
- #else
- #define DB_LOCK 0x2000 /* Do locking. */
- #define DB_SHMEM 0x4000 /* Use shared memory. */
- #define DB_TXN 0x8000 /* Do transactions. */
- #endif
-
- /* Access method description structure. */
- typedef struct __db {
- DBTYPE type; /* Underlying db type. */
- int (*close) (struct __db *);
- int (*del) (const struct __db *, const DBT *, uint);
- int (*get) (const struct __db *, const DBT *, DBT *, uint);
- int (*put) (const struct __db *, DBT *, const DBT *, uint);
- int (*seq) (const struct __db *, DBT *, DBT *, uint);
- int (*sync) (const struct __db *, uint);
- void *internal; /* Access method private. */
- int (*fd) (const struct __db *);
- } DB;
-
- #define BTREEMAGIC 0x053162
- #define BTREEVERSION 3
-
- /* Structure used to pass parameters to the btree routines. */
- typedef struct {
- #define R_DUP 0x01 /* duplicate keys */
- uint32 flags;
- uint cachesize; /* bytes to cache */
- int maxkeypage; /* maximum keys per page */
- int minkeypage; /* minimum keys per page */
- uint psize; /* page size */
- int (*compare) /* comparison function */
- (const DBT *, const DBT *);
- size_t (*prefix) /* prefix function */
- (const DBT *, const DBT *);
- int lorder; /* byte order */
- } BTREEINFO;
-
- #define HASHMAGIC 0x061561
- #define HASHVERSION 2
-
- /* Structure used to pass parameters to the hashing routines. */
- typedef struct {
- uint bsize; /* bucket size */
- uint ffactor; /* fill factor */
- uint nelem; /* number of elements */
- uint cachesize; /* bytes to cache */
- uint32 /* hash function */
- (*hash) (const void *, size_t);
- int lorder; /* byte order */
- } HASHINFO;
-
- /* Structure used to pass parameters to the record routines. */
- typedef struct {
- #define R_FIXEDLEN 0x01 /* fixed-length records */
- #define R_NOKEY 0x02 /* key not required */
- #define R_SNAPSHOT 0x04 /* snapshot the input */
- uint32 flags;
- uint cachesize; /* bytes to cache */
- uint psize; /* page size */
- int lorder; /* byte order */
- size_t reclen; /* record length (fixed-length records) */
- uint8 bval; /* delimiting byte (variable-length records */
- char *bfname; /* btree file name */
- } RECNOINFO;
-
- /* #ifdef __DBINTERFACE_PRIVATE */
- /*
- * Little endian <==> big endian 32-bit swap macros.
- * M_32_SWAP swap a memory location
- * P_32_SWAP swap a referenced memory location
- * P_32_COPY swap from one location to another
- */
- #define M_32_SWAP(a) { \
- uint32 _tmp = a; \
- ((char *)&a)[0] = ((char *)&_tmp)[3]; \
- ((char *)&a)[1] = ((char *)&_tmp)[2]; \
- ((char *)&a)[2] = ((char *)&_tmp)[1]; \
- ((char *)&a)[3] = ((char *)&_tmp)[0]; \
- }
- #define P_32_SWAP(a) { \
- uint32 _tmp = *(uint32 *)a; \
- ((char *)a)[0] = ((char *)&_tmp)[3]; \
- ((char *)a)[1] = ((char *)&_tmp)[2]; \
- ((char *)a)[2] = ((char *)&_tmp)[1]; \
- ((char *)a)[3] = ((char *)&_tmp)[0]; \
- }
- #define P_32_COPY(a, b) { \
- ((char *)&(b))[0] = ((char *)&(a))[3]; \
- ((char *)&(b))[1] = ((char *)&(a))[2]; \
- ((char *)&(b))[2] = ((char *)&(a))[1]; \
- ((char *)&(b))[3] = ((char *)&(a))[0]; \
- }
-
- /*
- * Little endian <==> big endian 16-bit swap macros.
- * M_16_SWAP swap a memory location
- * P_16_SWAP swap a referenced memory location
- * P_16_COPY swap from one location to another
- */
- #define M_16_SWAP(a) { \
- uint16 _tmp = a; \
- ((char *)&a)[0] = ((char *)&_tmp)[1]; \
- ((char *)&a)[1] = ((char *)&_tmp)[0]; \
- }
- #define P_16_SWAP(a) { \
- uint16 _tmp = *(uint16 *)a; \
- ((char *)a)[0] = ((char *)&_tmp)[1]; \
- ((char *)a)[1] = ((char *)&_tmp)[0]; \
- }
- #define P_16_COPY(a, b) { \
- ((char *)&(b))[0] = ((char *)&(a))[1]; \
- ((char *)&(b))[1] = ((char *)&(a))[0]; \
- }
- /* #endif */
-
- __BEGIN_DECLS
- DB *dbopen (const char *, int, int, DBTYPE, const void *);
-
- /* set or unset a global lock flag to disable the
- * opening of any DBM file
- */
- void dbSetOrClearDBLock(DBLockFlagEnum type);
-
- /* #ifdef __DBINTERFACE_PRIVATE */
- DB *__bt_open (const char *, int, int, const BTREEINFO *, int);
- DB *__hash_open (const char *, int, int, const HASHINFO *, int);
- DB *__rec_open (const char *, int, int, const RECNOINFO *, int);
- void __dbpanic (DB *dbp);
- /* #endif */
-
- __END_DECLS
-
- #if defined(linux) && !defined(MACLINUX)
- /*
- * Why you would want to override the system defines?
- */
- #if BYTE_ORDER != LITTLE_ENDIAN
- #define BYTE_ORDER LITTLE_ENDIAN
- #endif
- #endif
-
- #if defined(__hpux) || defined(__hppa)
- #define BYTE_ORDER BIG_ENDIAN
- #define BIG_ENDIAN 4321
- #define LITTLE_ENDIAN 1234 /* LSB first: i386, vax, all NT risc */
- #endif
-
- #if defined(AIXV3)
- /* BYTE_ORDER, LITTLE_ENDIAN, BIG_ENDIAN are all defined here */
- #include <sys/machine.h>
- #endif
-
- #ifdef __alpha
- #include <endian.h>
- #endif
-
- #endif /* !_DB_H_ */
-