2 * Copyright (C) 1994-1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.12 1995-10-06 13:52:06 adam
8 * Bug fixes. Handler may abort further scanning.
10 * Revision 1.11 1995/10/06 10:43:57 adam
11 * Scan added. 'occurrences' in scan entries not set yet.
13 * Revision 1.10 1995/10/02 16:43:32 quinn
14 * Set default resulting record type in fetch.
16 * Revision 1.9 1995/10/02 15:18:52 adam
17 * New member in recRetrieveCtrl: diagnostic.
19 * Revision 1.8 1995/09/28 09:19:47 adam
20 * xfree/xmalloc used everywhere.
21 * Extract/retrieve method seems to work for text records.
23 * Revision 1.7 1995/09/27 16:17:32 adam
24 * More work on retrieve.
26 * Revision 1.6 1995/09/08 08:53:22 adam
27 * Record buffer maintained in server_info.
29 * Revision 1.5 1995/09/06 16:11:18 adam
30 * Option: only one word key per file.
32 * Revision 1.4 1995/09/06 10:33:04 adam
33 * More work on present. Some log messages removed.
35 * Revision 1.3 1995/09/05 15:28:40 adam
36 * More work on search engine.
38 * Revision 1.2 1995/09/04 12:33:43 adam
39 * Various cleanup. YAZ util used instead.
41 * Revision 1.1 1995/09/04 09:10:41 adam
42 * More work on index add/del/update.
43 * Merge sort implemented.
44 * Initial work on z39 server.
56 ZServerInfo server_info;
58 bend_initresult *bend_init (bend_initrequest *q)
60 static bend_initresult r;
61 static char *name = "zserver";
67 server_info.sets = NULL;
68 if (!(server_info.sys_idx_fd = open (FNAME_SYS_IDX, O_RDONLY)))
71 r.errstring = "dict_open fail: filedict";
74 if (!(server_info.fileDict = dict_open (FNAME_FILE_DICT, 10, 0)))
77 r.errstring = "dict_open fail: filedict";
80 if (!(server_info.wordDict = dict_open (FNAME_WORD_DICT, 40, 0)))
82 dict_close (server_info.fileDict);
84 r.errstring = "dict_open fail: worddict";
87 if (!(server_info.wordIsam = is_open (FNAME_WORD_ISAM, key_compare, 0,
88 sizeof (struct it_key))))
90 dict_close (server_info.wordDict);
91 dict_close (server_info.fileDict);
93 r.errstring = "is_open fail: wordisam";
96 server_info.odr = odr_createmem (ODR_ENCODE);
100 bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
102 static bend_searchresult r;
108 odr_reset (server_info.odr);
109 server_info.errCode = 0;
110 switch (q->query->which)
113 r.errcode = rpn_search (&server_info, q->query->u.type_1,
114 q->num_bases, q->basenames, q->setname,
123 static int record_read (int fd, char *buf, size_t count)
125 return read (fd, buf, count);
128 static int record_fetch (ZServerInfo *zi, int sysno, ODR stream,
129 oid_value input_format, oid_value *output_format,
130 char **rec_bufp, int *rec_lenp)
132 char record_info[SYS_IDX_ENTRY_LEN];
133 char *fname, *file_type;
135 struct recRetrieveCtrl retrieveCtrl;
137 if (lseek (zi->sys_idx_fd, sysno * SYS_IDX_ENTRY_LEN,
140 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: lseek of sys_idx");
143 if (read (zi->sys_idx_fd, record_info, SYS_IDX_ENTRY_LEN) == -1)
145 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: read of sys_idx");
148 file_type = record_info;
149 fname = record_info + strlen(record_info) + 1;
150 if (!(rt = recType_byName (file_type)))
152 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Cannot handle type %s",
156 if ((retrieveCtrl.fd = open (fname, O_RDONLY)) == -1)
158 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Open record file %s", fname);
161 retrieveCtrl.odr = stream;
162 retrieveCtrl.readf = record_read;
163 retrieveCtrl.input_format = retrieveCtrl.output_format = input_format;
164 retrieveCtrl.diagnostic = 0;
165 (*rt->retrieve)(&retrieveCtrl);
166 *output_format = retrieveCtrl.output_format;
167 *rec_bufp = retrieveCtrl.rec_buf;
168 *rec_lenp = retrieveCtrl.rec_len;
169 close (retrieveCtrl.fd);
170 return retrieveCtrl.diagnostic;
173 bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
175 static bend_fetchresult r;
177 ZServerSetSysno *records;
183 odr_reset (server_info.odr);
184 server_info.errCode = 0;
186 positions[0] = q->number;
187 records = resultSetSysnoGet (&server_info, q->setname, 1, positions);
190 logf (LOG_DEBUG, "resultSetRecordGet, error");
194 if (!records[0].sysno)
197 logf (LOG_DEBUG, "Out of range. pos=%d", q->number);
200 r.errcode = record_fetch (&server_info, records[0].sysno, q->stream,
201 q->format, &r.format, &r.record, &r.len);
205 bend_deleteresult *bend_delete (void *handle, bend_deleterequest *q, int *num)
210 bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
212 static bend_scanresult r;
214 odr_reset (server_info.odr);
215 server_info.errCode = 0;
218 r.term_position = q->term_position;
219 r.num_entries = q->num_entries;
220 r.errcode = rpn_scan (&server_info, server_info.odr, q->term,
222 &r.num_entries, &r.entries);
226 void bend_close (void *handle)
228 dict_close (server_info.fileDict);
229 dict_close (server_info.wordDict);
230 is_close (server_info.wordIsam);
231 close (server_info.sys_idx_fd);
235 int main (int argc, char **argv)
237 char *base_name = "base";
239 if (!(common_resource = res_open (base_name)))
241 logf (LOG_FATAL, "Cannot open resource `%s'", base_name);
244 return statserv_main (argc, argv);