source: gsdl/trunk/common-src/src/gdbmedit/gdbmdel/gdbmdel.cpp@ 18469

Last change on this file since 18469 was 18469, checked in by davidb, 14 years ago

Support for reindexing a document added

  • Property svn:executable set to *
File size: 2.6 KB
Line 
1/**********************************************************************
2 *
3 * gdbmdel -- retrieve a single value from the GDBM database
4 * Copyright (C) 1999 The New Zealand Digital Library Project
5 *
6 * A component of the Greenstone digital library software
7 * from the New Zealand Digital Library Project at the
8 * University of Waikato, New Zealand.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 *
24 *********************************************************************/
25
26#ifdef __WIN32__
27#include "autoconf.h"
28#include "systems.h"
29#include "gdbmconst.h"
30#include "gdbm.h"
31
32#else
33#include <gdbm.h>
34#endif
35
36#include "gsdlconf.h"
37#include <stdlib.h>
38
39#if defined(GSDL_USE_OBJECTSPACE)
40#include <ospace\std\iostream>
41#elif defined(GSDL_USE_IOS_H)
42#include <iostream.h>
43#else
44#include <iostream>
45#endif
46
47// use the standard namespace
48#if !defined (GSDL_NAMESPACE_BROKEN)
49#if defined(GSDL_USE_OBJECTSPACE)
50using namespace ospace::std;
51#else
52using namespace std;
53#endif
54#endif
55
56void
57print_usage (char *program_name)
58{
59 cerr << "usage: " << program_name << " <database_path> <key>" << endl;
60 cerr << endl;
61}
62
63
64int main (int argc, char *argv[])
65{
66 int block_size = 0;
67 GDBM_FILE dbf;
68 datum key;
69
70 // sanity check
71 if (argc != 3)
72 {
73 print_usage (argv[0]);
74 exit (-1);
75 }
76
77 // open the database
78#ifdef __WIN32__
79 dbf = gdbm_open (argv[1], block_size, GDBM_WRCREAT, 00664, NULL, 1);
80#else
81 dbf = gdbm_open (argv[1], block_size, GDBM_WRCREAT, 00664, NULL);
82#endif
83 if (dbf == NULL)
84 {
85 cerr << "Couldn't open " << argv[1] << endl;
86 exit (-1);
87 }
88
89 key.dsize = strlen(argv[2]);
90 key.dptr = argv[2];
91
92 int status = gdbm_delete (dbf, key);
93
94 // status:
95 // 0 == delete OK
96 // -1 == key does not exist or there was an error
97
98 if (status < 0) {
99 cerr << "Opened database " << argv[1] << endl;
100 cerr << " but couldn't delete: " << argv[2] << endl;
101 }
102
103 gdbm_close (dbf);
104
105 return status;
106}
107
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