trustbridge/nss-cmake-static: nss/lib/dbm/src/hash.c annotate

annotate nss/lib/dbm/src/hash.c @ 3:150b72113545

Add DBM and legacydb support

author	Andre Heinecke <andre.heinecke@intevation.de>
date	Tue, 05 Aug 2014 18:32:02 +0200
parents
children

rev	line source
3 150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1 /*-
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	2 * Copyright (c) 1990, 1993, 1994
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	3 * The Regents of the University of California. All rights reserved.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	4 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	5 * This code is derived from software contributed to Berkeley by
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	6 * Margo Seltzer.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	7 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	8 * Redistribution and use in source and binary forms, with or without
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	9 * modification, are permitted provided that the following conditions
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	10 * are met:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	11 * 1. Redistributions of source code must retain the above copyright
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	12 * notice, this list of conditions and the following disclaimer.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	13 * 2. Redistributions in binary form must reproduce the above copyright
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	14 * notice, this list of conditions and the following disclaimer in the
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	15 * documentation and/or other materials provided with the distribution.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	16 * 3. *REMOVED* - see
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	17 * ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	18 * 4. Neither the name of the University nor the names of its contributors
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	19 * may be used to endorse or promote products derived from this software
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	20 * without specific prior written permission.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	21 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	32 * SUCH DAMAGE.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	33 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	34
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	35 #if defined(LIBC_SCCS) && !defined(lint)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	36 static char sccsid[] = "@(#)hash.c 8.9 (Berkeley) 6/16/94";
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	37 #endif /* LIBC_SCCS and not lint */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	38
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	39 #if !defined(_WIN32) && !defined(_WINDOWS) && !defined(macintosh)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	40 #include <sys/param.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	41 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	42
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	43 #if !defined(macintosh)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	44 #ifdef XP_OS2
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	45 #include <sys/types.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	46 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	47 #include <sys/stat.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	48 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	49
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	50 #if defined(macintosh)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	51 #include <unix.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	52 #include <unistd.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	53 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	54
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	55 #include <errno.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	56 #include <fcntl.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	57 #include <stdio.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	58 #include <stdlib.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	59 #include <string.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	60
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	61 #if !defined(_WIN32) && !defined(_WINDOWS) && !defined(macintosh)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	62 #include <unistd.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	63 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	64 #if defined(_WIN32) \|\| defined(_WINDOWS)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	65 #include <windows.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	66 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	67
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	68 #include <assert.h>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	69
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	70 #include "mcom_db.h"
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	71 #include "hash.h"
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	72 #include "page.h"
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	73
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	74 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	75 #include "extern.h"
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	76 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	77 static int alloc_segs __P((HTAB *, int));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	78 static int flush_meta __P((HTAB *));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	79 static int hash_access __P((HTAB , ACTION, DBT , DBT *));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	80 static int hash_close __P((DB *));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	81 static int hash_delete __P((const DB , const DBT , uint));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	82 static int hash_fd __P((const DB *));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	83 static int hash_get __P((const DB , const DBT , DBT *, uint));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	84 static int hash_put __P((const DB , DBT , const DBT *, uint));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	85 static void hash_realloc __P((SEGMENT *, size_t, size_t));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	86 static int hash_seq __P((const DB , DBT , DBT *, uint));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	87 static int hash_sync __P((const DB *, uint));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	88 static int hdestroy __P((HTAB *));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	89 static HTAB init_hash __P((HTAB , const char , HASHINFO ));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	90 static int init_htab __P((HTAB *, int));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	91 #if BYTE_ORDER == LITTLE_ENDIAN
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	92 static void swap_header __P((HTAB *));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	93 static void swap_header_copy __P((HASHHDR , HASHHDR ));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	94 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	95
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	96 /* Fast arithmetic, relying on powers of 2, */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	97 #define MOD(x, y) ((x) & ((y) - 1))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	98
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	99 #define RETURN_ERROR(ERR, LOC) { save_errno = ERR; goto LOC; }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	100
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	101 /* Return values */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	102 #define SUCCESS (0)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	103 #define DBM_ERROR (-1)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	104 #define ABNORMAL (1)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	105
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	106 #ifdef HASH_STATISTICS
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	107 int hash_accesses, hash_collisions, hash_expansions, hash_overflows;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	108 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	109
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	110 /* A new Lou (montulli@mozilla.com) routine.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	111 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	112 * The database is screwed.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	113 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	114 * This closes the file, flushing buffers as appropriate.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	115 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	116 static void
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	117 __remove_database(DB *dbp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	118 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	119 HTAB hashp = (HTAB )dbp->internal;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	120
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	121 assert(0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	122
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	123 if (!hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	124 return;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	125 hdestroy(hashp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	126 dbp->internal = NULL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	127 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	128
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	129 /************************ INTERFACE ROUTINES *************************/
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	130 /* OPEN/CLOSE */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	131
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	132
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	133 extern DB *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	134 __hash_open(const char file, int flags, int mode, const HASHINFO info, int dflags)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	135 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	136 HTAB *hashp=NULL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	137 struct stat statbuf;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	138 DB *dbp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	139 int bpages, hdrsize, new_table, nsegs, save_errno;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	140
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	141 if ((flags & O_ACCMODE) == O_WRONLY) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	142 errno = EINVAL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	143 return NULL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	144 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	145
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	146 /* zero the statbuffer so that
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	147 * we can check it for a non-zero
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	148 * date to see if stat succeeded
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	149 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	150 memset(&statbuf, 0, sizeof(struct stat));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	151
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	152 if (!(hashp = (HTAB *)calloc(1, sizeof(HTAB)))) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	153 errno = ENOMEM;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	154 return NULL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	155 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	156 hashp->fp = NO_FILE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	157 if(file)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	158 hashp->filename = strdup(file);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	159
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	160 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	161 * Even if user wants write only, we need to be able to read
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	162 * the actual file, so we need to open it read/write. But, the
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	163 * field in the hashp structure needs to be accurate so that
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	164 * we can check accesses.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	165 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	166 hashp->flags = flags;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	167
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	168 new_table = 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	169 if (!file \|\| (flags & O_TRUNC) \|\| (stat(file, &statbuf) && (errno == ENOENT)))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	170 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	171 if (errno == ENOENT)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	172 errno = 0; /* Just in case someone looks at errno */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	173 new_table = 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	174 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	175 else if(statbuf.st_mtime && statbuf.st_size == 0)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	176 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	177 /* check for a zero length file and delete it
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	178 * if it exists
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	179 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	180 new_table = 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	181 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	182 hashp->file_size = statbuf.st_size;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	183
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	184 if (file) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	185 #if defined(_WIN32) \|\| defined(_WINDOWS) \|\| defined (macintosh) \|\| defined(XP_OS2)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	186 if ((hashp->fp = DBFILE_OPEN(file, flags \| O_BINARY, mode)) == -1)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	187 RETURN_ERROR(errno, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	188 #else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	189 if ((hashp->fp = open(file, flags, mode)) == -1)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	190 RETURN_ERROR(errno, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	191 (void)fcntl(hashp->fp, F_SETFD, 1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	192 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	193 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	194 if (new_table) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	195 if (!init_hash(hashp, file, (HASHINFO *)info))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	196 RETURN_ERROR(errno, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	197 } else {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	198 /* Table already exists */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	199 if (info && info->hash)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	200 hashp->hash = info->hash;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	201 else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	202 hashp->hash = __default_hash;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	203
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	204 hdrsize = read(hashp->fp, (char *)&hashp->hdr, sizeof(HASHHDR));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	205 if (hdrsize == -1)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	206 RETURN_ERROR(errno, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	207 if (hdrsize != sizeof(HASHHDR))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	208 RETURN_ERROR(EFTYPE, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	209 #if BYTE_ORDER == LITTLE_ENDIAN
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	210 swap_header(hashp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	211 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	212 /* Verify file type, versions and hash function */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	213 if (hashp->MAGIC != HASHMAGIC)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	214 RETURN_ERROR(EFTYPE, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	215 #define OLDHASHVERSION 1
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	216 if (hashp->VERSION != HASHVERSION &&
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	217 hashp->VERSION != OLDHASHVERSION)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	218 RETURN_ERROR(EFTYPE, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	219 if (hashp->hash(CHARKEY, sizeof(CHARKEY)) != hashp->H_CHARKEY)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	220 RETURN_ERROR(EFTYPE, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	221 if (hashp->NKEYS < 0) /* Old bad database. */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	222 RETURN_ERROR(EFTYPE, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	223
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	224 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	225 * Figure out how many segments we need. Max_Bucket is the
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	226 * maximum bucket number, so the number of buckets is
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	227 * max_bucket + 1.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	228 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	229 nsegs = (hashp->MAX_BUCKET + 1 + hashp->SGSIZE - 1) /
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	230 hashp->SGSIZE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	231 hashp->nsegs = 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	232 if (alloc_segs(hashp, nsegs))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	233 /* If alloc_segs fails, errno will have been set. */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	234 RETURN_ERROR(errno, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	235 /* Read in bitmaps */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	236 bpages = (hashp->SPARES[hashp->OVFL_POINT] +
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	237 (hashp->BSIZE << BYTE_SHIFT) - 1) >>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	238 (hashp->BSHIFT + BYTE_SHIFT);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	239
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	240 hashp->nmaps = bpages;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	241 (void)memset(&hashp->mapp[0], 0, bpages * sizeof(uint32 *));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	242 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	243
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	244 /* Initialize Buffer Manager */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	245 if (info && info->cachesize)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	246 __buf_init(hashp, (int32) info->cachesize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	247 else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	248 __buf_init(hashp, DEF_BUFSIZE);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	249
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	250 hashp->new_file = new_table;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	251 #ifdef macintosh
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	252 hashp->save_file = file && !(hashp->flags & O_RDONLY);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	253 #else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	254 hashp->save_file = file && (hashp->flags & O_RDWR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	255 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	256 hashp->cbucket = -1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	257 if (!(dbp = (DB *)malloc(sizeof(DB)))) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	258 RETURN_ERROR(ENOMEM, error1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	259 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	260 dbp->internal = hashp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	261 dbp->close = hash_close;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	262 dbp->del = hash_delete;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	263 dbp->fd = hash_fd;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	264 dbp->get = hash_get;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	265 dbp->put = hash_put;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	266 dbp->seq = hash_seq;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	267 dbp->sync = hash_sync;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	268 dbp->type = DB_HASH;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	269
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	270 #ifdef HASH_STATISTICS
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	271 hash_overflows = hash_accesses = hash_collisions = hash_expansions = 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	272 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	273 return (dbp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	274
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	275 error1:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	276 hdestroy(hashp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	277 errno = save_errno;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	278 return (NULL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	279 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	280
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	281 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	282 hash_close(DB *dbp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	283 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	284 HTAB *hashp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	285 int retval;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	286
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	287 if (!dbp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	288 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	289
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	290 hashp = (HTAB *)dbp->internal;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	291 if(!hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	292 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	293
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	294 retval = hdestroy(hashp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	295 free(dbp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	296 return (retval);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	297 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	298
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	299 static int hash_fd(const DB *dbp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	300 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	301 HTAB *hashp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	302
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	303 if (!dbp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	304 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	305
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	306 hashp = (HTAB *)dbp->internal;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	307 if(!hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	308 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	309
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	310 if (hashp->fp == -1) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	311 errno = ENOENT;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	312 return (-1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	313 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	314 return (hashp->fp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	315 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	316
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	317 /************************ LOCAL CREATION ROUTINES ********************/
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	318 static HTAB *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	319 init_hash(HTAB hashp, const char file, HASHINFO *info)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	320 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	321 struct stat statbuf;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	322 int nelem;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	323
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	324 nelem = 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	325 hashp->NKEYS = 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	326 hashp->LORDER = BYTE_ORDER;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	327 hashp->BSIZE = DEF_BUCKET_SIZE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	328 hashp->BSHIFT = DEF_BUCKET_SHIFT;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	329 hashp->SGSIZE = DEF_SEGSIZE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	330 hashp->SSHIFT = DEF_SEGSIZE_SHIFT;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	331 hashp->DSIZE = DEF_DIRSIZE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	332 hashp->FFACTOR = DEF_FFACTOR;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	333 hashp->hash = __default_hash;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	334 memset(hashp->SPARES, 0, sizeof(hashp->SPARES));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	335 memset(hashp->BITMAPS, 0, sizeof (hashp->BITMAPS));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	336
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	337 /* Fix bucket size to be optimal for file system */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	338 if (file != NULL) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	339 if (stat(file, &statbuf))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	340 return (NULL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	341
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	342 #if !defined(_WIN32) && !defined(_WINDOWS) && !defined(macintosh) && !defined(XP_OS2)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	343 #if defined(__QNX__) && !defined(__QNXNTO__)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	344 hashp->BSIZE = 512; /* preferred blk size on qnx4 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	345 #else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	346 hashp->BSIZE = statbuf.st_blksize;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	347 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	348
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	349 /* new code added by Lou to reduce block
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	350 * size down below MAX_BSIZE
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	351 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	352 if (hashp->BSIZE > MAX_BSIZE)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	353 hashp->BSIZE = MAX_BSIZE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	354 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	355 hashp->BSHIFT = __log2((uint32)hashp->BSIZE);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	356 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	357
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	358 if (info) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	359 if (info->bsize) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	360 /* Round pagesize up to power of 2 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	361 hashp->BSHIFT = __log2(info->bsize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	362 hashp->BSIZE = 1 << hashp->BSHIFT;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	363 if (hashp->BSIZE > MAX_BSIZE) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	364 errno = EINVAL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	365 return (NULL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	366 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	367 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	368 if (info->ffactor)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	369 hashp->FFACTOR = info->ffactor;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	370 if (info->hash)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	371 hashp->hash = info->hash;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	372 if (info->nelem)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	373 nelem = info->nelem;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	374 if (info->lorder) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	375 if (info->lorder != BIG_ENDIAN &&
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	376 info->lorder != LITTLE_ENDIAN) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	377 errno = EINVAL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	378 return (NULL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	379 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	380 hashp->LORDER = info->lorder;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	381 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	382 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	383 /* init_htab sets errno if it fails */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	384 if (init_htab(hashp, nelem))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	385 return (NULL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	386 else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	387 return (hashp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	388 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	389 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	390 * This calls alloc_segs which may run out of memory. Alloc_segs will
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	391 * set errno, so we just pass the error information along.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	392 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	393 * Returns 0 on No Error
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	394 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	395 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	396 init_htab(HTAB *hashp, int nelem)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	397 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	398 register int nbuckets, nsegs;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	399 int l2;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	400
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	401 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	402 * Divide number of elements by the fill factor and determine a
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	403 * desired number of buckets. Allocate space for the next greater
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	404 * power of two number of buckets.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	405 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	406 nelem = (nelem - 1) / hashp->FFACTOR + 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	407
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	408 l2 = __log2((uint32)PR_MAX(nelem, 2));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	409 nbuckets = 1 << l2;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	410
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	411 hashp->SPARES[l2] = l2 + 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	412 hashp->SPARES[l2 + 1] = l2 + 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	413 hashp->OVFL_POINT = l2;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	414 hashp->LAST_FREED = 2;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	415
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	416 /* First bitmap page is at: splitpoint l2 page offset 1 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	417 if (__ibitmap(hashp, (int)OADDR_OF(l2, 1), l2 + 1, 0))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	418 return (-1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	419
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	420 hashp->MAX_BUCKET = hashp->LOW_MASK = nbuckets - 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	421 hashp->HIGH_MASK = (nbuckets << 1) - 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	422 hashp->HDRPAGES = ((PR_MAX(sizeof(HASHHDR), MINHDRSIZE) - 1) >>
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	423 hashp->BSHIFT) + 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	424
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	425 nsegs = (nbuckets - 1) / hashp->SGSIZE + 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	426 nsegs = 1 << __log2((uint32)nsegs);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	427
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	428 if (nsegs > hashp->DSIZE)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	429 hashp->DSIZE = nsegs;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	430 return (alloc_segs(hashp, nsegs));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	431 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	432
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	433 /******************** DESTROY/CLOSE ROUTINES **********************/
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	434
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	435 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	436 * Flushes any changes to the file if necessary and destroys the hashp
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	437 * structure, freeing all allocated space.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	438 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	439 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	440 hdestroy(HTAB *hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	441 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	442 int i, save_errno;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	443
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	444 save_errno = 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	445
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	446 #ifdef HASH_STATISTICS
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	447 (void)fprintf(stderr, "hdestroy: accesses %ld collisions %ld\n",
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	448 hash_accesses, hash_collisions);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	449 (void)fprintf(stderr, "hdestroy: expansions %ld\n",
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	450 hash_expansions);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	451 (void)fprintf(stderr, "hdestroy: overflows %ld\n",
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	452 hash_overflows);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	453 (void)fprintf(stderr, "keys %ld maxp %d segmentcount %d\n",
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	454 hashp->NKEYS, hashp->MAX_BUCKET, hashp->nsegs);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	455
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	456 for (i = 0; i < NCACHED; i++)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	457 (void)fprintf(stderr,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	458 "spares[%d] = %d\n", i, hashp->SPARES[i]);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	459 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	460 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	461 * Call on buffer manager to free buffers, and if required,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	462 * write them to disk.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	463 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	464 if (__buf_free(hashp, 1, hashp->save_file))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	465 save_errno = errno;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	466 if (hashp->dir) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	467 free(hashp->dir); / Free initial segments */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	468 /* Free extra segments */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	469 while (hashp->exsegs--)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	470 free(hashp->dir[--hashp->nsegs]);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	471 free(hashp->dir);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	472 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	473 if (flush_meta(hashp) && !save_errno)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	474 save_errno = errno;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	475 /* Free Bigmaps */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	476 for (i = 0; i < hashp->nmaps; i++)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	477 if (hashp->mapp[i])
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	478 free(hashp->mapp[i]);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	479
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	480 if (hashp->fp != -1)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	481 (void)close(hashp->fp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	482
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	483 if(hashp->filename) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	484 #if defined(_WIN32) \|\| defined(_WINDOWS) \|\| defined(XP_OS2)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	485 if (hashp->is_temp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	486 (void)unlink(hashp->filename);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	487 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	488 free(hashp->filename);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	489 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	490 if (hashp->tmp_buf)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	491 free(hashp->tmp_buf);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	492 if (hashp->tmp_key)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	493 free(hashp->tmp_key);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	494 free(hashp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	495 if (save_errno) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	496 errno = save_errno;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	497 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	498 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	499 return (SUCCESS);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	500 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	501
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	502 #if defined(_WIN32) \|\| defined(_WINDOWS)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	503 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	504 * Close and reopen file to force file length update on windows.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	505 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	506 * Returns:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	507 * 0 == OK
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	508 * -1 DBM_ERROR
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	509 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	510 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	511 update_EOF(HTAB *hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	512 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	513 #if defined(DBM_REOPEN_ON_FLUSH)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	514 char * file = hashp->filename;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	515 off_t file_size;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	516 int flags;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	517 int mode = -1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	518 struct stat statbuf;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	519
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	520 memset(&statbuf, 0, sizeof statbuf);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	521
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	522 /* make sure we won't lose the file by closing it. */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	523 if (!file \|\| (stat(file, &statbuf) && (errno == ENOENT))) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	524 /* pretend we did it. */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	525 return 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	526 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	527
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	528 (void)close(hashp->fp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	529
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	530 flags = hashp->flags & ~(O_TRUNC \| O_CREAT \| O_EXCL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	531
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	532 if ((hashp->fp = DBFILE_OPEN(file, flags \| O_BINARY, mode)) == -1)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	533 return -1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	534 file_size = lseek(hashp->fp, (off_t)0, SEEK_END);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	535 if (file_size == -1)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	536 return -1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	537 hashp->file_size = file_size;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	538 return 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	539 #else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	540 int fd = hashp->fp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	541 off_t file_size = lseek(fd, (off_t)0, SEEK_END);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	542 HANDLE handle = (HANDLE)_get_osfhandle(fd);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	543 BOOL cool = FlushFileBuffers(handle);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	544 #ifdef DEBUG3
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	545 if (!cool) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	546 DWORD err = GetLastError();
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	547 (void)fprintf(stderr,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	548 "FlushFileBuffers failed, last error = %d, 0x%08x\n",
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	549 err, err);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	550 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	551 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	552 if (file_size == -1)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	553 return -1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	554 hashp->file_size = file_size;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	555 return cool ? 0 : -1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	556 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	557 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	558 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	559
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	560 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	561 * Write modified pages to disk
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	562 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	563 * Returns:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	564 * 0 == OK
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	565 * -1 DBM_ERROR
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	566 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	567 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	568 hash_sync(const DB *dbp, uint flags)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	569 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	570 HTAB *hashp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	571
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	572 if (flags != 0) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	573 errno = EINVAL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	574 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	575 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	576
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	577 if (!dbp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	578 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	579
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	580 hashp = (HTAB *)dbp->internal;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	581 if(!hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	582 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	583
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	584 if (!hashp->save_file)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	585 return (0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	586 if (__buf_free(hashp, 0, 1) \|\| flush_meta(hashp))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	587 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	588 #if defined(_WIN32) \|\| defined(_WINDOWS)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	589 if (hashp->updateEOF && hashp->filename && !hashp->is_temp) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	590 int status = update_EOF(hashp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	591 hashp->updateEOF = 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	592 if (status)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	593 return status;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	594 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	595 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	596 hashp->new_file = 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	597 return (0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	598 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	599
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	600 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	601 * Returns:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	602 * 0 == OK
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	603 * -1 indicates that errno should be set
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	604 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	605 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	606 flush_meta(HTAB *hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	607 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	608 HASHHDR *whdrp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	609 #if BYTE_ORDER == LITTLE_ENDIAN
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	610 HASHHDR whdr;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	611 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	612 int fp, i, wsize;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	613
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	614 if (!hashp->save_file)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	615 return (0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	616 hashp->MAGIC = HASHMAGIC;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	617 hashp->VERSION = HASHVERSION;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	618 hashp->H_CHARKEY = hashp->hash(CHARKEY, sizeof(CHARKEY));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	619
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	620 fp = hashp->fp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	621 whdrp = &hashp->hdr;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	622 #if BYTE_ORDER == LITTLE_ENDIAN
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	623 whdrp = &whdr;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	624 swap_header_copy(&hashp->hdr, whdrp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	625 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	626 if ((lseek(fp, (off_t)0, SEEK_SET) == -1) \|\|
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	627 ((wsize = write(fp, (char*)whdrp, sizeof(HASHHDR))) == -1))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	628 return (-1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	629 else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	630 if (wsize != sizeof(HASHHDR)) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	631 errno = EFTYPE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	632 hashp->dbmerrno = errno;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	633 return (-1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	634 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	635 for (i = 0; i < NCACHED; i++)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	636 if (hashp->mapp[i])
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	637 if (__put_page(hashp, (char *)hashp->mapp[i],
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	638 hashp->BITMAPS[i], 0, 1))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	639 return (-1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	640 return (0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	641 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	642
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	643 /*****************************SEARCH ROUTINES ***************************/
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	644 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	645 * All the access routines return
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	646 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	647 * Returns:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	648 * 0 on SUCCESS
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	649 * 1 to indicate an external DBM_ERROR (i.e. key not found, etc)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	650 * -1 to indicate an internal DBM_ERROR (i.e. out of memory, etc)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	651 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	652 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	653 hash_get(
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	654 const DB *dbp,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	655 const DBT *key,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	656 DBT *data,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	657 uint flag)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	658 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	659 HTAB *hashp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	660 int rv;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	661
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	662 hashp = (HTAB *)dbp->internal;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	663 if (!hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	664 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	665
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	666 if (flag) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	667 hashp->dbmerrno = errno = EINVAL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	668 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	669 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	670
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	671 rv = hash_access(hashp, HASH_GET, (DBT *)key, data);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	672
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	673 if(rv == DATABASE_CORRUPTED_ERROR)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	674 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	675 #if defined(unix) && defined(DEBUG)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	676 printf("\n\nDBM Database has been corrupted, tell Lou...\n\n");
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	677 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	678 __remove_database((DB *)dbp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	679 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	680
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	681 return(rv);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	682 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	683
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	684 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	685 hash_put(
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	686 const DB *dbp,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	687 DBT *key,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	688 const DBT *data,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	689 uint flag)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	690 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	691 HTAB *hashp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	692 int rv;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	693
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	694 hashp = (HTAB *)dbp->internal;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	695 if (!hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	696 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	697
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	698 if (flag && flag != R_NOOVERWRITE) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	699 hashp->dbmerrno = errno = EINVAL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	700 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	701 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	702 if ((hashp->flags & O_ACCMODE) == O_RDONLY) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	703 hashp->dbmerrno = errno = EPERM;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	704 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	705 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	706
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	707 rv = hash_access(hashp, flag == R_NOOVERWRITE ?
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	708 HASH_PUTNEW : HASH_PUT, (DBT )key, (DBT )data);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	709
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	710 if(rv == DATABASE_CORRUPTED_ERROR)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	711 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	712 #if defined(unix) && defined(DEBUG)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	713 printf("\n\nDBM Database has been corrupted, tell Lou...\n\n");
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	714 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	715 __remove_database((DB *)dbp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	716 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	717
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	718 return(rv);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	719 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	720
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	721 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	722 hash_delete(
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	723 const DB *dbp,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	724 const DBT *key,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	725 uint flag) /* Ignored */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	726 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	727 HTAB *hashp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	728 int rv;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	729
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	730 hashp = (HTAB *)dbp->internal;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	731 if (!hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	732 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	733
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	734 if (flag && flag != R_CURSOR) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	735 hashp->dbmerrno = errno = EINVAL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	736 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	737 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	738 if ((hashp->flags & O_ACCMODE) == O_RDONLY) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	739 hashp->dbmerrno = errno = EPERM;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	740 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	741 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	742 rv = hash_access(hashp, HASH_DELETE, (DBT *)key, NULL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	743
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	744 if(rv == DATABASE_CORRUPTED_ERROR)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	745 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	746 #if defined(unix) && defined(DEBUG)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	747 printf("\n\nDBM Database has been corrupted, tell Lou...\n\n");
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	748 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	749 __remove_database((DB *)dbp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	750 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	751
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	752 return(rv);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	753 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	754
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	755 #define MAX_OVERFLOW_HASH_ACCESS_LOOPS 2000
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	756 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	757 * Assume that hashp has been set in wrapper routine.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	758 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	759 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	760 hash_access(
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	761 HTAB *hashp,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	762 ACTION action,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	763 DBT key, DBT val)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	764 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	765 register BUFHEAD *rbufp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	766 BUFHEAD bufp, save_bufp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	767 register uint16 *bp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	768 register long n, ndx, off;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	769 register size_t size;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	770 register char *kp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	771 uint16 pageno;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	772 uint32 ovfl_loop_count=0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	773 int32 last_overflow_page_no = -1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	774
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	775 #ifdef HASH_STATISTICS
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	776 hash_accesses++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	777 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	778
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	779 off = hashp->BSIZE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	780 size = key->size;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	781 kp = (char *)key->data;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	782 rbufp = __get_buf(hashp, __call_hash(hashp, kp, size), NULL, 0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	783 if (!rbufp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	784 return (DATABASE_CORRUPTED_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	785 save_bufp = rbufp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	786
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	787 /* Pin the bucket chain */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	788 rbufp->flags \|= BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	789 for (bp = (uint16 )rbufp->page, n = bp++, ndx = 1; ndx < n;)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	790 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	791
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	792 if (bp[1] >= REAL_KEY) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	793 /* Real key/data pair */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	794 if (size == (unsigned long)(off - *bp) &&
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	795 memcmp(kp, rbufp->page + *bp, size) == 0)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	796 goto found;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	797 off = bp[1];
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	798 #ifdef HASH_STATISTICS
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	799 hash_collisions++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	800 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	801 bp += 2;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	802 ndx += 2;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	803 } else if (bp[1] == OVFLPAGE) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	804
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	805 /* database corruption: overflow loop detection */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	806 if(last_overflow_page_no == (int32)*bp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	807 return (DATABASE_CORRUPTED_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	808
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	809 last_overflow_page_no = *bp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	810
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	811 rbufp = __get_buf(hashp, *bp, rbufp, 0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	812 if (!rbufp) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	813 save_bufp->flags &= ~BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	814 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	815 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	816
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	817 ovfl_loop_count++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	818 if(ovfl_loop_count > MAX_OVERFLOW_HASH_ACCESS_LOOPS)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	819 return (DATABASE_CORRUPTED_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	820
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	821 /* FOR LOOP INIT */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	822 bp = (uint16 *)rbufp->page;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	823 n = *bp++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	824 ndx = 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	825 off = hashp->BSIZE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	826 } else if (bp[1] < REAL_KEY) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	827 if ((ndx =
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	828 __find_bigpair(hashp, rbufp, ndx, kp, (int)size)) > 0)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	829 goto found;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	830 if (ndx == -2) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	831 bufp = rbufp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	832 if (!(pageno =
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	833 __find_last_page(hashp, &bufp))) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	834 ndx = 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	835 rbufp = bufp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	836 break; /* FOR */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	837 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	838 rbufp = __get_buf(hashp, pageno, bufp, 0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	839 if (!rbufp) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	840 save_bufp->flags &= ~BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	841 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	842 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	843 /* FOR LOOP INIT */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	844 bp = (uint16 *)rbufp->page;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	845 n = *bp++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	846 ndx = 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	847 off = hashp->BSIZE;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	848 } else {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	849 save_bufp->flags &= ~BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	850 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	851
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	852 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	853 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	854 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	855
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	856 /* Not found */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	857 switch (action) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	858 case HASH_PUT:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	859 case HASH_PUTNEW:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	860 if (__addel(hashp, rbufp, key, val)) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	861 save_bufp->flags &= ~BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	862 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	863 } else {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	864 save_bufp->flags &= ~BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	865 return (SUCCESS);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	866 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	867 case HASH_GET:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	868 case HASH_DELETE:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	869 default:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	870 save_bufp->flags &= ~BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	871 return (ABNORMAL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	872 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	873
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	874 found:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	875 switch (action) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	876 case HASH_PUTNEW:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	877 save_bufp->flags &= ~BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	878 return (ABNORMAL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	879 case HASH_GET:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	880 bp = (uint16 *)rbufp->page;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	881 if (bp[ndx + 1] < REAL_KEY) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	882 if (__big_return(hashp, rbufp, ndx, val, 0))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	883 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	884 } else {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	885 val->data = (uint8 *)rbufp->page + (int)bp[ndx + 1];
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	886 val->size = bp[ndx] - bp[ndx + 1];
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	887 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	888 break;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	889 case HASH_PUT:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	890 if ((__delpair(hashp, rbufp, ndx)) \|\|
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	891 (__addel(hashp, rbufp, key, val))) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	892 save_bufp->flags &= ~BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	893 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	894 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	895 break;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	896 case HASH_DELETE:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	897 if (__delpair(hashp, rbufp, ndx))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	898 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	899 break;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	900 default:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	901 abort();
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	902 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	903 save_bufp->flags &= ~BUF_PIN;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	904 return (SUCCESS);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	905 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	906
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	907 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	908 hash_seq(
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	909 const DB *dbp,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	910 DBT key, DBT data,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	911 uint flag)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	912 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	913 register uint32 bucket;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	914 register BUFHEAD *bufp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	915 HTAB *hashp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	916 uint16 *bp, ndx;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	917
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	918 hashp = (HTAB *)dbp->internal;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	919 if (!hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	920 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	921
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	922 if (flag && flag != R_FIRST && flag != R_NEXT) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	923 hashp->dbmerrno = errno = EINVAL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	924 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	925 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	926 #ifdef HASH_STATISTICS
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	927 hash_accesses++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	928 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	929 if ((hashp->cbucket < 0) \|\| (flag == R_FIRST)) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	930 hashp->cbucket = 0;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	931 hashp->cndx = 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	932 hashp->cpage = NULL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	933 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	934
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	935 for (bp = NULL; !bp \|\| !bp[0]; ) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	936 if (!(bufp = hashp->cpage)) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	937 for (bucket = hashp->cbucket;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	938 bucket <= (uint32)hashp->MAX_BUCKET;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	939 bucket++, hashp->cndx = 1) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	940 bufp = __get_buf(hashp, bucket, NULL, 0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	941 if (!bufp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	942 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	943 hashp->cpage = bufp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	944 bp = (uint16 *)bufp->page;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	945 if (bp[0])
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	946 break;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	947 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	948 hashp->cbucket = bucket;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	949 if (hashp->cbucket > hashp->MAX_BUCKET) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	950 hashp->cbucket = -1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	951 return (ABNORMAL);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	952 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	953 } else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	954 bp = (uint16 *)hashp->cpage->page;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	955
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	956 #ifdef DEBUG
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	957 assert(bp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	958 assert(bufp);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	959 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	960 while (bp[hashp->cndx + 1] == OVFLPAGE) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	961 bufp = hashp->cpage =
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	962 __get_buf(hashp, bp[hashp->cndx], bufp, 0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	963 if (!bufp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	964 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	965 bp = (uint16 *)(bufp->page);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	966 hashp->cndx = 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	967 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	968 if (!bp[0]) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	969 hashp->cpage = NULL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	970 ++hashp->cbucket;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	971 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	972 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	973 ndx = hashp->cndx;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	974 if (bp[ndx + 1] < REAL_KEY) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	975 if (__big_keydata(hashp, bufp, key, data, 1))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	976 return (DBM_ERROR);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	977 } else {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	978 key->data = (uint8 *)hashp->cpage->page + bp[ndx];
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	979 key->size = (ndx > 1 ? bp[ndx - 1] : hashp->BSIZE) - bp[ndx];
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	980 data->data = (uint8 *)hashp->cpage->page + bp[ndx + 1];
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	981 data->size = bp[ndx] - bp[ndx + 1];
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	982 ndx += 2;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	983 if (ndx > bp[0]) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	984 hashp->cpage = NULL;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	985 hashp->cbucket++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	986 hashp->cndx = 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	987 } else
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	988 hashp->cndx = ndx;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	989 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	990 return (SUCCESS);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	991 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	992
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	993 /******************************* UTILITIES **********************/
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	994
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	995 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	996 * Returns:
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	997 * 0 ==> OK
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	998 * -1 ==> Error
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	999 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1000 extern int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1001 __expand_table(HTAB *hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1002 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1003 uint32 old_bucket, new_bucket;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1004 int new_segnum, spare_ndx;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1005 size_t dirsize;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1006
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1007 #ifdef HASH_STATISTICS
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1008 hash_expansions++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1009 #endif
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1010 new_bucket = ++hashp->MAX_BUCKET;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1011 old_bucket = (hashp->MAX_BUCKET & hashp->LOW_MASK);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1012
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1013 new_segnum = new_bucket >> hashp->SSHIFT;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1014
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1015 /* Check if we need a new segment */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1016 if (new_segnum >= hashp->nsegs) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1017 /* Check if we need to expand directory */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1018 if (new_segnum >= hashp->DSIZE) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1019 /* Reallocate directory */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1020 dirsize = hashp->DSIZE * sizeof(SEGMENT *);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1021 if (!hash_realloc(&hashp->dir, dirsize, dirsize << 1))
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1022 return (-1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1023 hashp->DSIZE = dirsize << 1;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1024 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1025 if ((hashp->dir[new_segnum] =
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1026 (SEGMENT)calloc((size_t)hashp->SGSIZE, sizeof(SEGMENT))) == NULL)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1027 return (-1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1028 hashp->exsegs++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1029 hashp->nsegs++;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1030 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1031 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1032 * If the split point is increasing (MAX_BUCKET's log base 2
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1033 * * increases), we need to copy the current contents of the spare
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1034 * split bucket to the next bucket.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1035 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1036 spare_ndx = __log2((uint32)(hashp->MAX_BUCKET + 1));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1037 if (spare_ndx > hashp->OVFL_POINT) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1038 hashp->SPARES[spare_ndx] = hashp->SPARES[hashp->OVFL_POINT];
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1039 hashp->OVFL_POINT = spare_ndx;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1040 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1041
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1042 if (new_bucket > (uint32)hashp->HIGH_MASK) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1043 /* Starting a new doubling */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1044 hashp->LOW_MASK = hashp->HIGH_MASK;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1045 hashp->HIGH_MASK = new_bucket \| hashp->LOW_MASK;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1046 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1047 /* Relocate records to the new bucket */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1048 return (__split_page(hashp, old_bucket, new_bucket));
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1049 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1050
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1051 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1052 * If realloc guarantees that the pointer is not destroyed if the realloc
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1053 * fails, then this routine can go away.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1054 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1055 static void *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1056 hash_realloc(
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1057 SEGMENT **p_ptr,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1058 size_t oldsize, size_t newsize)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1059 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1060 register void *p;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1061
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1062 if ((p = malloc(newsize))) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1063 memmove(p, *p_ptr, oldsize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1064 memset((char *)p + oldsize, 0, newsize - oldsize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1065 free(*p_ptr);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1066 p_ptr = (SEGMENT )p;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1067 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1068 return (p);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1069 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1070
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1071 extern uint32
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1072 __call_hash(HTAB hashp, char k, size_t len)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1073 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1074 uint32 n, bucket;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1075
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1076 n = hashp->hash(k, len);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1077 bucket = n & hashp->HIGH_MASK;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1078 if (bucket > (uint32)hashp->MAX_BUCKET)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1079 bucket = bucket & hashp->LOW_MASK;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1080 return (bucket);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1081 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1082
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1083 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1084 * Allocate segment table. On error, set errno.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1085 *
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1086 * Returns 0 on success
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1087 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1088 static int
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1089 alloc_segs(
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1090 HTAB *hashp,
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1091 int nsegs)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1092 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1093 register int i;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1094 register SEGMENT store;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1095
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1096 if ((hashp->dir =
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1097 (SEGMENT )calloc((size_t)hashp->DSIZE, sizeof(SEGMENT ))) == NULL) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1098 errno = ENOMEM;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1099 return (-1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1100 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1101 /* Allocate segments */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1102 if ((store =
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1103 (SEGMENT)calloc((size_t)nsegs << hashp->SSHIFT, sizeof(SEGMENT))) == NULL) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1104 errno = ENOMEM;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1105 return (-1);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1106 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1107 for (i = 0; i < nsegs; i++, hashp->nsegs++)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1108 hashp->dir[i] = &store[i << hashp->SSHIFT];
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1109 return (0);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1110 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1111
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1112 #if BYTE_ORDER == LITTLE_ENDIAN
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1113 /*
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1114 * Hashp->hdr needs to be byteswapped.
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1115 */
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1116 static void
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1117 swap_header_copy(
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1118 HASHHDR srcp, HASHHDR destp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1119 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1120 int i;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1121
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1122 P_32_COPY(srcp->magic, destp->magic);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1123 P_32_COPY(srcp->version, destp->version);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1124 P_32_COPY(srcp->lorder, destp->lorder);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1125 P_32_COPY(srcp->bsize, destp->bsize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1126 P_32_COPY(srcp->bshift, destp->bshift);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1127 P_32_COPY(srcp->dsize, destp->dsize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1128 P_32_COPY(srcp->ssize, destp->ssize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1129 P_32_COPY(srcp->sshift, destp->sshift);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1130 P_32_COPY(srcp->ovfl_point, destp->ovfl_point);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1131 P_32_COPY(srcp->last_freed, destp->last_freed);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1132 P_32_COPY(srcp->max_bucket, destp->max_bucket);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1133 P_32_COPY(srcp->high_mask, destp->high_mask);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1134 P_32_COPY(srcp->low_mask, destp->low_mask);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1135 P_32_COPY(srcp->ffactor, destp->ffactor);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1136 P_32_COPY(srcp->nkeys, destp->nkeys);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1137 P_32_COPY(srcp->hdrpages, destp->hdrpages);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1138 P_32_COPY(srcp->h_charkey, destp->h_charkey);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1139 for (i = 0; i < NCACHED; i++) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1140 P_32_COPY(srcp->spares[i], destp->spares[i]);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1141 P_16_COPY(srcp->bitmaps[i], destp->bitmaps[i]);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1142 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1143 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1144
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1145 static void
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1146 swap_header(HTAB *hashp)
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1147 {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1148 HASHHDR *hdrp;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1149 int i;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1150
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1151 hdrp = &hashp->hdr;
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1152
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1153 M_32_SWAP(hdrp->magic);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1154 M_32_SWAP(hdrp->version);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1155 M_32_SWAP(hdrp->lorder);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1156 M_32_SWAP(hdrp->bsize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1157 M_32_SWAP(hdrp->bshift);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1158 M_32_SWAP(hdrp->dsize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1159 M_32_SWAP(hdrp->ssize);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1160 M_32_SWAP(hdrp->sshift);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1161 M_32_SWAP(hdrp->ovfl_point);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1162 M_32_SWAP(hdrp->last_freed);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1163 M_32_SWAP(hdrp->max_bucket);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1164 M_32_SWAP(hdrp->high_mask);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1165 M_32_SWAP(hdrp->low_mask);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1166 M_32_SWAP(hdrp->ffactor);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1167 M_32_SWAP(hdrp->nkeys);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1168 M_32_SWAP(hdrp->hdrpages);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1169 M_32_SWAP(hdrp->h_charkey);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1170 for (i = 0; i < NCACHED; i++) {
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1171 M_32_SWAP(hdrp->spares[i]);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1172 M_16_SWAP(hdrp->bitmaps[i]);
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1173 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1174 }
150b72113545 Add DBM and legacydb support Andre Heinecke <andre.heinecke@intevation.de> parents: diff changeset	1175 #endif

Mercurial > trustbridge > nss-cmake-static

annotate nss/lib/dbm/src/hash.c @ 3:150b72113545