2 * Copyright (C) 1994-1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.8 1995-09-28 09:19:47 adam
8 * xfree/xmalloc used everywhere.
9 * Extract/retrieve method seems to work for text records.
11 * Revision 1.7 1995/09/27 16:17:32 adam
12 * More work on retrieve.
14 * Revision 1.6 1995/09/08 08:53:22 adam
15 * Record buffer maintained in server_info.
17 * Revision 1.5 1995/09/06 16:11:18 adam
18 * Option: only one word key per file.
20 * Revision 1.4 1995/09/06 10:33:04 adam
21 * More work on present. Some log messages removed.
23 * Revision 1.3 1995/09/05 15:28:40 adam
24 * More work on search engine.
26 * Revision 1.2 1995/09/04 12:33:43 adam
27 * Various cleanup. YAZ util used instead.
29 * Revision 1.1 1995/09/04 09:10:41 adam
30 * More work on index add/del/update.
31 * Merge sort implemented.
32 * Initial work on z39 server.
45 ZServerInfo server_info;
47 bend_initresult *bend_init (bend_initrequest *q)
49 static bend_initresult r;
50 static char *name = "zserver";
56 server_info.sets = NULL;
57 if (!(server_info.sys_idx_fd = open (FNAME_SYS_IDX, O_RDONLY)))
60 r.errstring = "dict_open fail: filedict";
63 if (!(server_info.fileDict = dict_open (FNAME_FILE_DICT, 10, 0)))
66 r.errstring = "dict_open fail: filedict";
69 if (!(server_info.wordDict = dict_open (FNAME_WORD_DICT, 40, 0)))
71 dict_close (server_info.fileDict);
73 r.errstring = "dict_open fail: worddict";
76 if (!(server_info.wordIsam = is_open (FNAME_WORD_ISAM, key_compare, 0,
77 sizeof (struct it_key))))
79 dict_close (server_info.wordDict);
80 dict_close (server_info.fileDict);
82 r.errstring = "is_open fail: wordisam";
85 server_info.recordBuf = NULL;
89 bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
91 static bend_searchresult r;
97 switch (q->query->which)
100 r.errcode = rpn_search (&server_info, q->query->u.type_1,
101 q->num_bases, q->basenames, q->setname,
110 static int record_read (int fd, char *buf, size_t count)
112 return read (fd, buf, count);
115 static int record_fetch (ZServerInfo *zi, int sysno, ODR stream,
116 oid_value input_format, oid_value *output_format,
117 char **rec_bufp, int *rec_lenp)
119 char record_info[SYS_IDX_ENTRY_LEN];
120 char *fname, *file_type;
122 struct recRetrieveCtrl retrieveCtrl;
124 if (lseek (zi->sys_idx_fd, sysno * SYS_IDX_ENTRY_LEN,
127 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: lseek of sys_idx");
130 if (read (zi->sys_idx_fd, record_info, SYS_IDX_ENTRY_LEN) == -1)
132 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: read of sys_idx");
135 file_type = record_info;
136 fname = record_info + strlen(record_info) + 1;
137 if (!(rt = recType_byName (file_type)))
139 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Cannot handle type %s",
143 if ((retrieveCtrl.fd = open (fname, O_RDONLY)) == -1)
145 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Open record file %s", fname);
148 retrieveCtrl.odr = stream;
149 retrieveCtrl.readf = record_read;
150 retrieveCtrl.input_format = input_format;
151 (*rt->retrieve)(&retrieveCtrl);
152 *output_format = retrieveCtrl.output_format;
153 *rec_bufp = retrieveCtrl.rec_buf;
154 *rec_lenp = retrieveCtrl.rec_len;
155 close (retrieveCtrl.fd);
159 bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
161 static bend_fetchresult r;
163 ZServerSetSysno *records;
169 xfree (server_info.recordBuf);
170 server_info.recordBuf = NULL;
171 positions[0] = q->number;
172 records = resultSetSysnoGet (&server_info, q->setname, 1, positions);
175 logf (LOG_DEBUG, "resultSetRecordGet, error");
179 if (!records[0].sysno)
182 logf (LOG_DEBUG, "Out of range. pos=%d", q->number);
185 r.errcode = record_fetch (&server_info, records[0].sysno, q->stream,
186 q->format, &r.format, &r.record, &r.len);
190 bend_deleteresult *bend_delete (void *handle, bend_deleterequest *q, int *num)
195 bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
197 static struct scan_entry list[200];
198 static char buf[200][200];
199 static bend_scanresult r;
202 r.term_position = q->term_position;
203 r.num_entries = q->num_entries;
205 for (i = 0; i < r.num_entries; i++)
207 list[i].term = buf[i];
208 sprintf(list[i].term, "term-%d", i+1);
209 list[i].occurrences = rand() % 100000;
216 void bend_close (void *handle)
218 dict_close (server_info.fileDict);
219 dict_close (server_info.wordDict);
220 is_close (server_info.wordIsam);
221 close (server_info.sys_idx_fd);
222 xfree (server_info.recordBuf);
223 server_info.recordBuf = NULL;
227 int main (int argc, char **argv)
229 char *base_name = "base";
231 if (!(common_resource = res_open (base_name)))
233 logf (LOG_FATAL, "Cannot open resource `%s'", base_name);
236 return statserv_main (argc, argv);