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authorThomas Fitzsimmons <fitzsim@redhat.com>2002-06-20 19:51:40 +0000
committerThomas Fitzsimmons <fitzsim@redhat.com>2002-06-20 19:51:40 +0000
commita7b23a8f11b2e1f2ef333d2ed95d1c972acad12f (patch)
tree26eb76cc430a851b89de107870b4f6b177311072 /newlib/libc/include/db.h
parentc25ebbaf55dbef934d85522616d898eef37438e4 (diff)
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* Makefile.am (LIB_OBJECTLISTS): Add
libc/search/objectlist.awk.in. * libc/Makefile.am (SUBDIRS): Add search. (SUBLIBS): Add search/libsearch.la. * libc/configure.in (AC_OUTPUT): Add search/Makefile. * libc/search: New directory. * libc/search/Makefile.am: New file. * libc/search/extern.h: New file. * libc/search/hash.c: New file. * libc/search/hash.h: New file. * libc/search/hash_bigkey.c: New file. * libc/search/hash_buf.c: New file. * libc/search/hash_func.c: New file. * libc/search/hash_log2.c: New file. * libc/search/hash_page.c: New file. * libc/search/hcreate.3: New file. * libc/search/hcreate.c: New file. * libc/search/hcreate.c~: New file. * libc/search/hcreate_r.c: New file. * libc/search/ndbm.c: New file. * libc/search/page.h: New file. * libc/search/tdelete.c: New file. * libc/search/tdestroy.c: New file. * libc/search/tfind.c: New file. * libc/search/tsearch.3: New file. * libc/search/tsearch.c: New file. * libc/search/twalk.c: New file. * libc/include/db.h: New file. * libc/include/ndbm.h: New file. * libc/include/search.h: New file. * libc/include/sys/queue.h: New file. * libc/include/sys/cdefs.h: New file. * libc/include/sys/param.h [__IEEE_LITTLE_ENDIAN,__IEEE_BIG_ENDIAN]: Set BYTE_ORDER to LITTLE_ENDIAN or BIG_ENDIAN. * libc/include/sys/errno.h (EFTYPE): New macro. * libc/search/bsearch.c: Move from libc/stdlib. * libc/search/qsort.c: Likewise. * libc/stdlib/Makefile.am (LIB_SOURCES): Remove bsearch.c and qsort.c. (CHEWOUT_FILES): Remove bsearch.def and qsort.def. * libc/stdlib/stdlib.tex: Remove references to bsearch and qsort.
Diffstat (limited to 'newlib/libc/include/db.h')
-rw-r--r--newlib/libc/include/db.h218
1 files changed, 218 insertions, 0 deletions
diff --git a/newlib/libc/include/db.h b/newlib/libc/include/db.h
new file mode 100644
index 000000000..53f9d17ff
--- /dev/null
+++ b/newlib/libc/include/db.h
@@ -0,0 +1,218 @@
+/*-
+ * 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
+ * $FreeBSD: src/include/db.h,v 1.5 2002/03/26 01:35:05 bde Exp $
+ */
+
+#ifndef _DB_H_
+#define _DB_H_
+
+#include <sys/types.h>
+#include <sys/cdefs.h>
+#include <sys/config.h>
+
+#include <limits.h>
+
+#define RET_ERROR -1 /* Return values. */
+#define RET_SUCCESS 0
+#define RET_SPECIAL 1
+
+#define MAX_PAGE_NUMBER 0xffffffff /* >= # of pages in a file */
+typedef __uint32_t pgno_t;
+#define MAX_PAGE_OFFSET 65535 /* >= # of bytes in a page */
+typedef __uint16_t indx_t;
+#define MAX_REC_NUMBER 0xffffffff /* >= # of records in a tree */
+typedef __uint32_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)(struct __db *);
+ int (*del)(const struct __db *, const DBT *, u_int);
+ int (*get)(const struct __db *, const DBT *, DBT *, u_int);
+ int (*put)(const struct __db *, DBT *, const DBT *, u_int);
+ int (*seq)(const struct __db *, DBT *, DBT *, u_int);
+ int (*sync)(const struct __db *, u_int);
+ 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 */
+ 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 */
+ (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 {
+ u_int bsize; /* bucket size */
+ u_int ffactor; /* fill factor */
+ u_int nelem; /* number of elements */
+ u_int cachesize; /* bytes to cache */
+ __uint32_t /* 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 */
+ 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;
+
+/*
+ * 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_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) { \
+ __uint32_t _tmp = *(__uint32_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) { \
+ __uint16_t _tmp = a; \
+ ((char *)&a)[0] = ((char *)&_tmp)[1]; \
+ ((char *)&a)[1] = ((char *)&_tmp)[0]; \
+}
+#define P_16_SWAP(a) { \
+ __uint16_t _tmp = *(__uint16_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]; \
+}
+
+__BEGIN_DECLS
+DB *dbopen(const char *, int, int, DBTYPE, const void *);
+
+#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
+#endif /* !_DB_H_ */