2 * Copyright (C) 1994-1995, Index Data I/S
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.11 1995-10-06 10:43:57 adam
8 * Scan added. 'occurrences' in scan entries not set yet.
10 * Revision 1.10 1995/10/02 16:43:32 quinn
11 * Set default resulting record type in fetch.
13 * Revision 1.9 1995/10/02 15:18:52 adam
14 * New member in recRetrieveCtrl: diagnostic.
16 * Revision 1.8 1995/09/28 09:19:47 adam
17 * xfree/xmalloc used everywhere.
18 * Extract/retrieve method seems to work for text records.
20 * Revision 1.7 1995/09/27 16:17:32 adam
21 * More work on retrieve.
23 * Revision 1.6 1995/09/08 08:53:22 adam
24 * Record buffer maintained in server_info.
26 * Revision 1.5 1995/09/06 16:11:18 adam
27 * Option: only one word key per file.
29 * Revision 1.4 1995/09/06 10:33:04 adam
30 * More work on present. Some log messages removed.
32 * Revision 1.3 1995/09/05 15:28:40 adam
33 * More work on search engine.
35 * Revision 1.2 1995/09/04 12:33:43 adam
36 * Various cleanup. YAZ util used instead.
38 * Revision 1.1 1995/09/04 09:10:41 adam
39 * More work on index add/del/update.
40 * Merge sort implemented.
41 * Initial work on z39 server.
53 ZServerInfo server_info;
55 bend_initresult *bend_init (bend_initrequest *q)
57 static bend_initresult r;
58 static char *name = "zserver";
64 server_info.sets = NULL;
65 if (!(server_info.sys_idx_fd = open (FNAME_SYS_IDX, O_RDONLY)))
68 r.errstring = "dict_open fail: filedict";
71 if (!(server_info.fileDict = dict_open (FNAME_FILE_DICT, 10, 0)))
74 r.errstring = "dict_open fail: filedict";
77 if (!(server_info.wordDict = dict_open (FNAME_WORD_DICT, 40, 0)))
79 dict_close (server_info.fileDict);
81 r.errstring = "dict_open fail: worddict";
84 if (!(server_info.wordIsam = is_open (FNAME_WORD_ISAM, key_compare, 0,
85 sizeof (struct it_key))))
87 dict_close (server_info.wordDict);
88 dict_close (server_info.fileDict);
90 r.errstring = "is_open fail: wordisam";
93 server_info.recordBuf = NULL;
94 server_info.odr = odr_createmem (ODR_ENCODE);
98 bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
100 static bend_searchresult r;
106 switch (q->query->which)
109 r.errcode = rpn_search (&server_info, q->query->u.type_1,
110 q->num_bases, q->basenames, q->setname,
119 static int record_read (int fd, char *buf, size_t count)
121 return read (fd, buf, count);
124 static int record_fetch (ZServerInfo *zi, int sysno, ODR stream,
125 oid_value input_format, oid_value *output_format,
126 char **rec_bufp, int *rec_lenp)
128 char record_info[SYS_IDX_ENTRY_LEN];
129 char *fname, *file_type;
131 struct recRetrieveCtrl retrieveCtrl;
133 if (lseek (zi->sys_idx_fd, sysno * SYS_IDX_ENTRY_LEN,
136 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: lseek of sys_idx");
139 if (read (zi->sys_idx_fd, record_info, SYS_IDX_ENTRY_LEN) == -1)
141 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: read of sys_idx");
144 file_type = record_info;
145 fname = record_info + strlen(record_info) + 1;
146 if (!(rt = recType_byName (file_type)))
148 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Cannot handle type %s",
152 if ((retrieveCtrl.fd = open (fname, O_RDONLY)) == -1)
154 logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Open record file %s", fname);
157 retrieveCtrl.odr = stream;
158 retrieveCtrl.readf = record_read;
159 retrieveCtrl.input_format = retrieveCtrl.output_format = input_format;
160 retrieveCtrl.diagnostic = 0;
161 (*rt->retrieve)(&retrieveCtrl);
162 *output_format = retrieveCtrl.output_format;
163 *rec_bufp = retrieveCtrl.rec_buf;
164 *rec_lenp = retrieveCtrl.rec_len;
165 close (retrieveCtrl.fd);
166 return retrieveCtrl.diagnostic;
169 bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
171 static bend_fetchresult r;
173 ZServerSetSysno *records;
179 xfree (server_info.recordBuf);
180 server_info.recordBuf = NULL;
181 positions[0] = q->number;
182 records = resultSetSysnoGet (&server_info, q->setname, 1, positions);
185 logf (LOG_DEBUG, "resultSetRecordGet, error");
189 if (!records[0].sysno)
192 logf (LOG_DEBUG, "Out of range. pos=%d", q->number);
195 r.errcode = record_fetch (&server_info, records[0].sysno, q->stream,
196 q->format, &r.format, &r.record, &r.len);
200 bend_deleteresult *bend_delete (void *handle, bend_deleterequest *q, int *num)
205 bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
207 static bend_scanresult r;
209 odr_reset (server_info.odr);
211 r.term_position = q->term_position;
212 r.num_entries = q->num_entries;
213 r.errcode = rpn_scan (&server_info, server_info.odr, q->term,
215 &r.num_entries, &r.entries);
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);