mirror of
https://github.com/rn10950/RetroZilla.git
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30d33aa8e8
9934c8faef29, 3c3b381c4865, 5a67f6beee9a, 1b1eb6d77728, a8b668fd72f7, bug962760, bug743700, bug857304, bug972653, bug972450, bug971358, bug903885, bug977073, bug976111, bug949939, bug947653, bug947572, bug903885, bug979106, bug966596, bug979004, bug979752, bug980848, bug938369, bug981170, bug668130, bug974693, bug975056, bug979132, bug370717, bug979070, bug985070, bug900067, bug977673, bug519255, bug989558, bug557299, bug987263, bug369802, a751a5146718, bug992343, bug952572, bug979703, bug994883, bug994869, bug993489, bug984608, bug977869, bug667371, bug672828, bug793347, bug977869
421 lines
12 KiB
C
421 lines
12 KiB
C
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*-
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* Copyright (c) 1990, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. ***REMOVED*** - see
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* ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)db.h 8.7 (Berkeley) 6/16/94
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*/
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#ifndef _DB_H_
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#define _DB_H_
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#ifndef macintosh
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#include <sys/types.h>
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#endif
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#include "prtypes.h"
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#if !defined(XP_BEOS) && !defined(XP_OS2) && !defined(XP_UNIX) || defined(NTO)
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typedef PRUintn uint;
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#endif
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typedef PRUint8 uint8;
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typedef PRUint16 uint16;
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/* On AIX 5.2, sys/inttypes.h (which is included by sys/types.h)
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* defines the types int8, int16, int32, and int64. */
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#if !defined(AIX)
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typedef PRInt32 int32;
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#endif
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typedef PRUint32 uint32;
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#include <limits.h>
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#ifdef __DBINTERFACE_PRIVATE
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#ifdef HAVE_SYS_CDEFS_H
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#include <sys/cdefs.h>
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#else
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#include "cdefs.h"
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#endif
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#ifdef HAVE_SYS_BYTEORDER_H
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#include <sys/byteorder.h>
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#endif
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#if defined(__linux) || defined(__BEOS__)
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#include <endian.h>
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#ifndef BYTE_ORDER
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#define BYTE_ORDER __BYTE_ORDER
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#define BIG_ENDIAN __BIG_ENDIAN
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#define LITTLE_ENDIAN __LITTLE_ENDIAN
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#endif
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#endif /* __linux */
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#ifdef __sgi
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#define BYTE_ORDER BIG_ENDIAN
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#define BIG_ENDIAN 4321
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#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax, all NT risc */
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#endif
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#ifdef __sun
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#define BIG_ENDIAN 4321
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#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax, all NT risc */
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#ifndef __SVR4
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/* compat.h is only in 4.1.3 machines. - dp */
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#include <compat.h>
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#endif
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/* XXX - dp
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* Need to find a general way of defining endian-ness in SunOS 5.3
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* SunOS 5.4 defines _BIG_ENDIAN and _LITTLE_ENDIAN
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* SunOS 5.3 does nothing like this.
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*/
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#ifndef BYTE_ORDER
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#if defined(_BIG_ENDIAN)
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#define BYTE_ORDER BIG_ENDIAN
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#elif defined(_LITTLE_ENDIAN)
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#define BYTE_ORDER LITTLE_ENDIAN
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#elif !defined(__SVR4)
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/* 4.1.3 is always BIG_ENDIAN as it was released only on sparc platforms. */
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#define BYTE_ORDER BIG_ENDIAN
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#elif !defined(vax) && !defined(ntohl) && !defined(lint) && !defined(i386)
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/* 5.3 big endian. Copied this above line from sys/byteorder.h */
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/* Now we are in a 5.3 SunOS rather non 5.4 or above SunOS */
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#define BYTE_ORDER BIG_ENDIAN
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#else
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif /* !BYTE_ORDER */
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#endif /* __sun */
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#if defined(__hpux) || defined(__hppa)
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#define BYTE_ORDER BIG_ENDIAN
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#define BIG_ENDIAN 4321
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#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax, all NT risc */
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#endif
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#if defined(AIXV3) || defined(AIX)
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/* BYTE_ORDER, LITTLE_ENDIAN, BIG_ENDIAN are all defined here */
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#include <sys/machine.h>
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#endif
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/* Digital Unix */
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#ifdef __osf__
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#include <machine/endian.h>
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#endif
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#ifdef __alpha
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#ifndef WIN32
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#else
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/* Alpha NT */
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#define BYTE_ORDER LITTLE_ENDIAN
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#define BIG_ENDIAN 4321
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#define LITTLE_ENDIAN 1234
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#endif
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#endif
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#ifdef NCR
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#include <sys/endian.h>
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#endif
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#ifdef __QNX__
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#ifdef __QNXNTO__
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#include <sys/param.h>
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#else
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#define LITTLE_ENDIAN 1234
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#define BIG_ENDIAN 4321
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#define BYTE_ORDER LITTLE_ENDIAN
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#endif
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#endif
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#ifdef SNI
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/* #include <sys/hetero.h> */
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#define BYTE_ORDER BIG_ENDIAN
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#define BIG_ENDIAN 4321
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#define LITTLE_ENDIAN 1234
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#endif
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#ifdef _WINDOWS
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#ifdef BYTE_ORDER
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#undef BYTE_ORDER
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#endif
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#define BYTE_ORDER LITTLE_ENDIAN
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#define LITTLE_ENDIAN 1234 /* LSB first: i386, vax, all NT risc */
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#define BIG_ENDIAN 4321
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#endif
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#ifdef macintosh
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#define BIG_ENDIAN 4321
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#define LITTLE_ENDIAN 1234
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#define BYTE_ORDER BIG_ENDIAN
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#endif
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#endif /* __DBINTERFACE_PRIVATE */
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#ifdef SCO
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#define MAXPATHLEN 1024
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#endif
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#include <fcntl.h>
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#if defined(_WINDOWS) || defined(XP_OS2)
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#include <stdio.h>
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#include <io.h>
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#ifndef XP_OS2
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#define MAXPATHLEN 1024
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#endif
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#define EFTYPE EINVAL /* POSIX 1003.1 format errno. */
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#ifndef STDERR_FILENO
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#define STDIN_FILENO 0 /* ANSI C #defines */
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#define STDOUT_FILENO 1
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#define STDERR_FILENO 2
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#endif
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#ifndef O_ACCMODE /* POSIX 1003.1 access mode mask. */
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#define O_ACCMODE (O_RDONLY|O_WRONLY|O_RDWR)
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#endif
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#endif
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#ifdef macintosh
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#include <stdio.h>
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#include "xp_mcom.h"
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#define O_ACCMODE 3 /* Mask for file access modes */
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#define EFTYPE 2000
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PR_BEGIN_EXTERN_C
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int mkstemp(const char *path);
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PR_END_EXTERN_C
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#endif /* MACINTOSH */
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#if !defined(_WINDOWS) && !defined(macintosh)
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#include <sys/stat.h>
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#include <errno.h>
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#endif
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/* define EFTYPE since most don't */
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#ifndef EFTYPE
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#define EFTYPE EINVAL /* POSIX 1003.1 format errno. */
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#endif
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#define RET_ERROR -1 /* Return values. */
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#define RET_SUCCESS 0
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#define RET_SPECIAL 1
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#define MAX_PAGE_NUMBER 0xffffffff /* >= # of pages in a file */
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#ifndef __sgi
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typedef uint32 pgno_t;
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#endif
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#define MAX_PAGE_OFFSET 65535 /* >= # of bytes in a page */
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typedef uint16 indx_t;
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#define MAX_REC_NUMBER 0xffffffff /* >= # of records in a tree */
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typedef uint32 recno_t;
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/* Key/data structure -- a Data-Base Thang. */
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typedef struct {
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void *data; /* data */
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size_t size; /* data length */
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} DBT;
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/* Routine flags. */
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#define R_CURSOR 1 /* del, put, seq */
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#define __R_UNUSED 2 /* UNUSED */
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#define R_FIRST 3 /* seq */
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#define R_IAFTER 4 /* put (RECNO) */
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#define R_IBEFORE 5 /* put (RECNO) */
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#define R_LAST 6 /* seq (BTREE, RECNO) */
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#define R_NEXT 7 /* seq */
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#define R_NOOVERWRITE 8 /* put */
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#define R_PREV 9 /* seq (BTREE, RECNO) */
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#define R_SETCURSOR 10 /* put (RECNO) */
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#define R_RECNOSYNC 11 /* sync (RECNO) */
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typedef enum { DB_BTREE, DB_HASH, DB_RECNO } DBTYPE;
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typedef enum { LockOutDatabase, UnlockDatabase } DBLockFlagEnum;
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/*
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* !!!
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* The following flags are included in the dbopen(3) call as part of the
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* open(2) flags. In order to avoid conflicts with the open flags, start
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* at the top of the 16 or 32-bit number space and work our way down. If
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* the open flags were significantly expanded in the future, it could be
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* a problem. Wish I'd left another flags word in the dbopen call.
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*
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* !!!
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* None of this stuff is implemented yet. The only reason that it's here
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* is so that the access methods can skip copying the key/data pair when
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* the DB_LOCK flag isn't set.
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*/
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#if UINT_MAX > 65535
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#define DB_LOCK 0x20000000 /* Do locking. */
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#define DB_SHMEM 0x40000000 /* Use shared memory. */
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#define DB_TXN 0x80000000 /* Do transactions. */
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#else
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#define DB_LOCK 0x2000 /* Do locking. */
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#define DB_SHMEM 0x4000 /* Use shared memory. */
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#define DB_TXN 0x8000 /* Do transactions. */
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#endif
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/* Access method description structure. */
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typedef struct __db {
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DBTYPE type; /* Underlying db type. */
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int (*close) (struct __db *);
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int (*del) (const struct __db *, const DBT *, uint);
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int (*get) (const struct __db *, const DBT *, DBT *, uint);
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int (*put) (const struct __db *, DBT *, const DBT *, uint);
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int (*seq) (const struct __db *, DBT *, DBT *, uint);
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int (*sync) (const struct __db *, uint);
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void *internal; /* Access method private. */
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int (*fd) (const struct __db *);
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} DB;
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#define BTREEMAGIC 0x053162
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#define BTREEVERSION 3
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/* Structure used to pass parameters to the btree routines. */
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typedef struct {
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#define R_DUP 0x01 /* duplicate keys */
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uint32 flags;
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uint cachesize; /* bytes to cache */
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int maxkeypage; /* maximum keys per page */
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int minkeypage; /* minimum keys per page */
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uint psize; /* page size */
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int (*compare) /* comparison function */
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(const DBT *, const DBT *);
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size_t (*prefix) /* prefix function */
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(const DBT *, const DBT *);
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int lorder; /* byte order */
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} BTREEINFO;
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#define HASHMAGIC 0x061561
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#define HASHVERSION 2
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/* Structure used to pass parameters to the hashing routines. */
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typedef struct {
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uint bsize; /* bucket size */
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uint ffactor; /* fill factor */
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uint nelem; /* number of elements */
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uint cachesize; /* bytes to cache */
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uint32 /* hash function */
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(*hash) (const void *, size_t);
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int lorder; /* byte order */
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} HASHINFO;
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/* Structure used to pass parameters to the record routines. */
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typedef struct {
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#define R_FIXEDLEN 0x01 /* fixed-length records */
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#define R_NOKEY 0x02 /* key not required */
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#define R_SNAPSHOT 0x04 /* snapshot the input */
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uint32 flags;
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uint cachesize; /* bytes to cache */
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uint psize; /* page size */
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int lorder; /* byte order */
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size_t reclen; /* record length (fixed-length records) */
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uint8 bval; /* delimiting byte (variable-length records */
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char *bfname; /* btree file name */
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} RECNOINFO;
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#ifdef __DBINTERFACE_PRIVATE
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/*
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* Little endian <==> big endian 32-bit swap macros.
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* M_32_SWAP swap a memory location
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* P_32_SWAP swap a referenced memory location
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* P_32_COPY swap from one location to another
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*/
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#define M_32_SWAP(a) { \
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uint32 _tmp = a; \
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((char *)&a)[0] = ((char *)&_tmp)[3]; \
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((char *)&a)[1] = ((char *)&_tmp)[2]; \
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((char *)&a)[2] = ((char *)&_tmp)[1]; \
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((char *)&a)[3] = ((char *)&_tmp)[0]; \
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}
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#define P_32_SWAP(a) { \
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uint32 _tmp = *(uint32 *)a; \
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((char *)a)[0] = ((char *)&_tmp)[3]; \
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((char *)a)[1] = ((char *)&_tmp)[2]; \
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((char *)a)[2] = ((char *)&_tmp)[1]; \
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((char *)a)[3] = ((char *)&_tmp)[0]; \
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}
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#define P_32_COPY(a, b) { \
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((char *)&(b))[0] = ((char *)&(a))[3]; \
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((char *)&(b))[1] = ((char *)&(a))[2]; \
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((char *)&(b))[2] = ((char *)&(a))[1]; \
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((char *)&(b))[3] = ((char *)&(a))[0]; \
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}
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/*
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* Little endian <==> big endian 16-bit swap macros.
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* M_16_SWAP swap a memory location
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* P_16_SWAP swap a referenced memory location
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* P_16_COPY swap from one location to another
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*/
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#define M_16_SWAP(a) { \
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uint16 _tmp = a; \
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((char *)&a)[0] = ((char *)&_tmp)[1]; \
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((char *)&a)[1] = ((char *)&_tmp)[0]; \
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}
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#define P_16_SWAP(a) { \
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uint16 _tmp = *(uint16 *)a; \
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((char *)a)[0] = ((char *)&_tmp)[1]; \
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((char *)a)[1] = ((char *)&_tmp)[0]; \
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}
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#define P_16_COPY(a, b) { \
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((char *)&(b))[0] = ((char *)&(a))[1]; \
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((char *)&(b))[1] = ((char *)&(a))[0]; \
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}
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#endif
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PR_BEGIN_EXTERN_C
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extern DB *
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dbopen (const char *, int, int, DBTYPE, const void *);
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/* set or unset a global lock flag to disable the
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* opening of any DBM file
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*/
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void dbSetOrClearDBLock(DBLockFlagEnum type);
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#ifdef __DBINTERFACE_PRIVATE
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DB *__bt_open (const char *, int, int, const BTREEINFO *, int);
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DB *__hash_open (const char *, int, int, const HASHINFO *, int);
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DB *__rec_open (const char *, int, int, const RECNOINFO *, int);
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void __dbpanic (DB *dbp);
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#endif
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PR_END_EXTERN_C
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#endif /* !_DB_H_ */
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