2 * Copyright (C) 1994-1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.9 1995-10-02 15:18:52 adam
8 * New member in recRetrieveCtrl: diagnostic.
10 * Revision 1.8 1995/09/28 09:19:47 adam
11 * xfree/xmalloc used everywhere.
12 * Extract/retrieve method seems to work for text records.
14 * Revision 1.7 1995/09/27 16:17:32 adam
15 * More work on retrieve.
17 * Revision 1.6 1995/09/08 08:53:22 adam
18 * Record buffer maintained in server_info.
20 * Revision 1.5 1995/09/06 16:11:18 adam
21 * Option: only one word key per file.
23 * Revision 1.4 1995/09/06 10:33:04 adam
24 * More work on present. Some log messages removed.
26 * Revision 1.3 1995/09/05 15:28:40 adam
27 * More work on search engine.
29 * Revision 1.2 1995/09/04 12:33:43 adam
30 * Various cleanup. YAZ util used instead.
32 * Revision 1.1 1995/09/04 09:10:41 adam
33 * More work on index add/del/update.
34 * Merge sort implemented.
35 * Initial work on z39 server.
48 ZServerInfo server_info;
50 bend_initresult *bend_init (bend_initrequest *q)
52 static bend_initresult r;
53 static char *name = "zserver";
59 server_info.sets = NULL;
60 if (!(server_info.sys_idx_fd = open (FNAME_SYS_IDX, O_RDONLY)))
63 r.errstring = "dict_open fail: filedict";
66 if (!(server_info.fileDict = dict_open (FNAME_FILE_DICT, 10, 0)))
69 r.errstring = "dict_open fail: filedict";
72 if (!(server_info.wordDict = dict_open (FNAME_WORD_DICT, 40, 0)))
74 dict_close (server_info.fileDict);
76 r.errstring = "dict_open fail: worddict";
79 if (!(server_info.wordIsam = is_open (FNAME_WORD_ISAM, key_compare, 0,
80 sizeof (struct it_key))))
82 dict_close (server_info.wordDict);
83 dict_close (server_info.fileDict);
85 r.errstring = "is_open fail: wordisam";
88 server_info.recordBuf = NULL;
92 bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
94 static bend_searchresult r;
100 switch (q->query->which)
103 r.errcode = rpn_search (&server_info, q->query->u.type_1,
104 q->num_bases, q->basenames, q->setname,
113 static int record_read (int fd, char *buf, size_t count)
115 return read (fd, buf, count);
118 static int record_fetch (ZServerInfo *zi, int sysno, ODR stream,
119 oid_value input_format, oid_value *output_format,
120 char **rec_bufp, int *rec_lenp)
122 char record_info[SYS_IDX_ENTRY_LEN];
123 char *fname, *file_type;
125 struct recRetrieveCtrl retrieveCtrl;
127 if (lseek (zi->sys_idx_fd, sysno * SYS_IDX_ENTRY_LEN,
130 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: lseek of sys_idx");
133 if (read (zi->sys_idx_fd, record_info, SYS_IDX_ENTRY_LEN) == -1)
135 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: read of sys_idx");
138 file_type = record_info;
139 fname = record_info + strlen(record_info) + 1;
140 if (!(rt = recType_byName (file_type)))
142 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Cannot handle type %s",
146 if ((retrieveCtrl.fd = open (fname, O_RDONLY)) == -1)
148 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Open record file %s", fname);
151 retrieveCtrl.odr = stream;
152 retrieveCtrl.readf = record_read;
153 retrieveCtrl.input_format = input_format;
154 retrieveCtrl.diagnostic = 0;
155 (*rt->retrieve)(&retrieveCtrl);
156 *output_format = retrieveCtrl.output_format;
157 *rec_bufp = retrieveCtrl.rec_buf;
158 *rec_lenp = retrieveCtrl.rec_len;
159 close (retrieveCtrl.fd);
160 return retrieveCtrl.diagnostic;
163 bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
165 static bend_fetchresult r;
167 ZServerSetSysno *records;
173 xfree (server_info.recordBuf);
174 server_info.recordBuf = NULL;
175 positions[0] = q->number;
176 records = resultSetSysnoGet (&server_info, q->setname, 1, positions);
179 logf (LOG_DEBUG, "resultSetRecordGet, error");
183 if (!records[0].sysno)
186 logf (LOG_DEBUG, "Out of range. pos=%d", q->number);
189 r.errcode = record_fetch (&server_info, records[0].sysno, q->stream,
190 q->format, &r.format, &r.record, &r.len);
194 bend_deleteresult *bend_delete (void *handle, bend_deleterequest *q, int *num)
199 bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
201 static struct scan_entry list[200];
202 static char buf[200][200];
203 static bend_scanresult r;
206 r.term_position = q->term_position;
207 r.num_entries = q->num_entries;
209 for (i = 0; i < r.num_entries; i++)
211 list[i].term = buf[i];
212 sprintf(list[i].term, "term-%d", i+1);
213 list[i].occurrences = rand() % 100000;
220 void bend_close (void *handle)
222 dict_close (server_info.fileDict);
223 dict_close (server_info.wordDict);
224 is_close (server_info.wordIsam);
225 close (server_info.sys_idx_fd);
226 xfree (server_info.recordBuf);
227 server_info.recordBuf = NULL;
231 int main (int argc, char **argv)
233 char *base_name = "base";
235 if (!(common_resource = res_open (base_name)))
237 logf (LOG_FATAL, "Cannot open resource `%s'", base_name);
240 return statserv_main (argc, argv);