2 * Copyright (C) 1994-1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.10 1995-10-02 16:43:32 quinn
8 * Set default resulting record type in fetch.
10 * Revision 1.9 1995/10/02 15:18:52 adam
11 * New member in recRetrieveCtrl: diagnostic.
13 * Revision 1.8 1995/09/28 09:19:47 adam
14 * xfree/xmalloc used everywhere.
15 * Extract/retrieve method seems to work for text records.
17 * Revision 1.7 1995/09/27 16:17:32 adam
18 * More work on retrieve.
20 * Revision 1.6 1995/09/08 08:53:22 adam
21 * Record buffer maintained in server_info.
23 * Revision 1.5 1995/09/06 16:11:18 adam
24 * Option: only one word key per file.
26 * Revision 1.4 1995/09/06 10:33:04 adam
27 * More work on present. Some log messages removed.
29 * Revision 1.3 1995/09/05 15:28:40 adam
30 * More work on search engine.
32 * Revision 1.2 1995/09/04 12:33:43 adam
33 * Various cleanup. YAZ util used instead.
35 * Revision 1.1 1995/09/04 09:10:41 adam
36 * More work on index add/del/update.
37 * Merge sort implemented.
38 * Initial work on z39 server.
51 ZServerInfo server_info;
53 bend_initresult *bend_init (bend_initrequest *q)
55 static bend_initresult r;
56 static char *name = "zserver";
62 server_info.sets = NULL;
63 if (!(server_info.sys_idx_fd = open (FNAME_SYS_IDX, O_RDONLY)))
66 r.errstring = "dict_open fail: filedict";
69 if (!(server_info.fileDict = dict_open (FNAME_FILE_DICT, 10, 0)))
72 r.errstring = "dict_open fail: filedict";
75 if (!(server_info.wordDict = dict_open (FNAME_WORD_DICT, 40, 0)))
77 dict_close (server_info.fileDict);
79 r.errstring = "dict_open fail: worddict";
82 if (!(server_info.wordIsam = is_open (FNAME_WORD_ISAM, key_compare, 0,
83 sizeof (struct it_key))))
85 dict_close (server_info.wordDict);
86 dict_close (server_info.fileDict);
88 r.errstring = "is_open fail: wordisam";
91 server_info.recordBuf = NULL;
95 bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
97 static bend_searchresult r;
103 switch (q->query->which)
106 r.errcode = rpn_search (&server_info, q->query->u.type_1,
107 q->num_bases, q->basenames, q->setname,
116 static int record_read (int fd, char *buf, size_t count)
118 return read (fd, buf, count);
121 static int record_fetch (ZServerInfo *zi, int sysno, ODR stream,
122 oid_value input_format, oid_value *output_format,
123 char **rec_bufp, int *rec_lenp)
125 char record_info[SYS_IDX_ENTRY_LEN];
126 char *fname, *file_type;
128 struct recRetrieveCtrl retrieveCtrl;
130 if (lseek (zi->sys_idx_fd, sysno * SYS_IDX_ENTRY_LEN,
133 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: lseek of sys_idx");
136 if (read (zi->sys_idx_fd, record_info, SYS_IDX_ENTRY_LEN) == -1)
138 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: read of sys_idx");
141 file_type = record_info;
142 fname = record_info + strlen(record_info) + 1;
143 if (!(rt = recType_byName (file_type)))
145 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Cannot handle type %s",
149 if ((retrieveCtrl.fd = open (fname, O_RDONLY)) == -1)
151 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Open record file %s", fname);
154 retrieveCtrl.odr = stream;
155 retrieveCtrl.readf = record_read;
156 retrieveCtrl.input_format = retrieveCtrl.output_format = input_format;
157 retrieveCtrl.diagnostic = 0;
158 (*rt->retrieve)(&retrieveCtrl);
159 *output_format = retrieveCtrl.output_format;
160 *rec_bufp = retrieveCtrl.rec_buf;
161 *rec_lenp = retrieveCtrl.rec_len;
162 close (retrieveCtrl.fd);
163 return retrieveCtrl.diagnostic;
166 bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
168 static bend_fetchresult r;
170 ZServerSetSysno *records;
176 xfree (server_info.recordBuf);
177 server_info.recordBuf = NULL;
178 positions[0] = q->number;
179 records = resultSetSysnoGet (&server_info, q->setname, 1, positions);
182 logf (LOG_DEBUG, "resultSetRecordGet, error");
186 if (!records[0].sysno)
189 logf (LOG_DEBUG, "Out of range. pos=%d", q->number);
192 r.errcode = record_fetch (&server_info, records[0].sysno, q->stream,
193 q->format, &r.format, &r.record, &r.len);
197 bend_deleteresult *bend_delete (void *handle, bend_deleterequest *q, int *num)
202 bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
204 static struct scan_entry list[200];
205 static char buf[200][200];
206 static bend_scanresult r;
209 r.term_position = q->term_position;
210 r.num_entries = q->num_entries;
212 for (i = 0; i < r.num_entries; i++)
214 list[i].term = buf[i];
215 sprintf(list[i].term, "term-%d", i+1);
216 list[i].occurrences = rand() % 100000;
223 void bend_close (void *handle)
225 dict_close (server_info.fileDict);
226 dict_close (server_info.wordDict);
227 is_close (server_info.wordIsam);
228 close (server_info.sys_idx_fd);
229 xfree (server_info.recordBuf);
230 server_info.recordBuf = NULL;
234 int main (int argc, char **argv)
236 char *base_name = "base";
238 if (!(common_resource = res_open (base_name)))
240 logf (LOG_FATAL, "Cannot open resource `%s'", base_name);
243 return statserv_main (argc, argv);