1 /*-
2 * Copyright (c) 1991, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Margo Seltzer.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)tdel.c 8.1 (Berkeley) 6/4/93
33 * $FreeBSD: head/lib/libc/db/test/hash.tests/tdel.c 165903 2007-01-09 00:28:16Z imp $
34 */
35
36 #include <sys/types.h>
37 #include <sys/file.h>
38 #include <db.h>
39 #include <stdio.h>
40
41 #define INITIAL 25000
42 #define MAXWORDS 25000 /* # of elements in search table */
43
44 /* Usage: thash pagesize fillfactor file */
45 char wp1[8192];
46 char wp2[8192];
47
48 int
main(int argc,char ** argv)49 main(int argc, char **argv)
50 {
51 DBT item, key;
52 DB *dbp;
53 HASHINFO ctl;
54 FILE *fp;
55 int stat;
56
57 int i = 0;
58
59 argv++;
60 ctl.nelem = INITIAL;
61 ctl.hash = NULL;
62 ctl.bsize = atoi(*argv++);
63 ctl.ffactor = atoi(*argv++);
64 ctl.cachesize = 1024 * 1024; /* 1 MEG */
65 ctl.lorder = 0;
66 argc -= 2;
67 if (!(dbp = dbopen( NULL, O_CREAT|O_RDWR, 0400, DB_HASH, &ctl))) {
68 /* create table */
69 fprintf(stderr, "cannot create: hash table size %d)\n",
70 INITIAL);
71 exit(1);
72 }
73
74 key.data = wp1;
75 item.data = wp2;
76 while ( fgets(wp1, 8192, stdin) &&
77 fgets(wp2, 8192, stdin) &&
78 i++ < MAXWORDS) {
79 /*
80 * put info in structure, and structure in the item
81 */
82 key.size = strlen(wp1);
83 item.size = strlen(wp2);
84
85 /*
86 * enter key/data pair into the table
87 */
88 if ((dbp->put)(dbp, &key, &item, R_NOOVERWRITE) != NULL) {
89 fprintf(stderr, "cannot enter: key %s\n",
90 item.data);
91 exit(1);
92 }
93 }
94
95 if ( --argc ) {
96 fp = fopen ( argv[0], "r");
97 i = 0;
98 while ( fgets(wp1, 8192, fp) &&
99 fgets(wp2, 8192, fp) &&
100 i++ < MAXWORDS) {
101 key.size = strlen(wp1);
102 stat = (dbp->del)(dbp, &key, 0);
103 if (stat) {
104 fprintf ( stderr, "Error retrieving %s\n", key.data );
105 exit(1);
106 }
107 }
108 fclose(fp);
109 }
110 (dbp->close)(dbp);
111 exit(0);
112 }
113