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+/*-
+ * 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 1
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+
+#include <limits.h>
+
+#ifdef __DBINTERFACE_PRIVATE
+#include <compat.h>
+#endif
+
+#ifdef SOLARIS
+#include "solaris-compat/compat.h"
+#endif
+
+#define RET_ERROR -1 /* Return values. */
+#define RET_SUCCESS 0
+#define RET_SPECIAL 1
+
+#ifndef __BIT_TYPES_DEFINED__
+#define __BIT_TYPES_DEFINED__
+#if (!defined(__FreeBSD__) && !defined(__NetBSD__) && !defined(__APPLE__))
+typedef __signed char int8_t;
+typedef short int16_t;
+typedef int int32_t;
+typedef unsigned char u_int8_t;
+typedef unsigned short u_int16_t;
+typedef unsigned int u_int32_t;
+#ifdef WE_DONT_NEED_QUADS
+typedef long long int64_t;
+typedef unsigned long long u_int64_t;
+#endif
+#endif /* __FreeBSD__ */
+#endif
+
+#ifdef SOLARIS
+#define __P(p) p
+#define __BEGIN_DECLS
+#define __END_DECLS
+#endif
+
+#define MAX_PAGE_NUMBER 0xffffffff /* >= # of pages in a file */
+typedef u_int32_t pgno_t;
+#define MAX_PAGE_OFFSET 65535 /* >= # of bytes in a page */
+typedef u_int16_t indx_t;
+#define MAX_REC_NUMBER 0xffffffff /* >= # of records in a tree */
+typedef u_int32_t recno_t;
+
+/* 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;
+
+/*
+ * !!!
+ * 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) __P((struct __db *));
+ int (*del) __P((const struct __db *, const DBT *, u_int));
+ int (*get) __P((const struct __db *, const DBT *, DBT *, u_int));
+ int (*put) __P((const struct __db *, DBT *, const DBT *, u_int));
+ int (*seq) __P((const struct __db *, DBT *, DBT *, u_int));
+ int (*sync) __P((const struct __db *, u_int));
+ void *internal; /* Access method private. */
+ int (*fd) __P((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 */
+ u_long flags;
+ u_int cachesize; /* bytes to cache */
+ int maxkeypage; /* maximum keys per page */
+ int minkeypage; /* minimum keys per page */
+ u_int psize; /* page size */
+ int (*compare) /* comparison function */
+ __P((const DBT *, const DBT *));
+ size_t (*prefix) /* prefix function */
+ __P((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 {
+ u_int bsize; /* bucket size */
+ u_int ffactor; /* fill factor */
+ u_int nelem; /* number of elements */
+ u_int cachesize; /* bytes to cache */
+ u_int32_t /* hash function */
+ (*hash) __P((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 */
+ u_long flags;
+ u_int cachesize; /* bytes to cache */
+ u_int psize; /* page size */
+ int lorder; /* byte order */
+ size_t reclen; /* record length (fixed-length records) */
+ u_char 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) { \
+ u_int32_t _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) { \
+ u_int32_t _tmp = *(u_int32_t *)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) { \
+ u_int16_t _tmp = a; \
+ ((char *)&a)[0] = ((char *)&_tmp)[1]; \
+ ((char *)&a)[1] = ((char *)&_tmp)[0]; \
+}
+#define P_16_SWAP(a) { \
+ u_int16_t _tmp = *(u_int16_t *)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 __P((const char *, int, int, DBTYPE, const void *));
+DB *dbopen __P((const char *, int, int, DBTYPE, const void *));
+
+#ifdef __DBINTERFACE_PRIVATE
+DB *__bt_open __P((const char *, int, int, const BTREEINFO *, int));
+DB *__hash_open __P((const char *, int, int, const HASHINFO *, int));
+DB *__rec_open __P((const char *, int, int, const RECNOINFO *, int));
+void __dbpanic __P((DB *dbp));
+#endif
+__END_DECLS
+
+#endif /* db.h */