/*
- * Copyright (C) 1995, Index Data I/S
+ * Copyright (C) 1994-1995, Index Data I/S
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: zserver.c,v $
- * Revision 1.3 1995-09-05 15:28:40 adam
+ * Revision 1.22 1995-11-16 15:34:55 adam
+ * Uses new record management system in both indexer and server.
+ *
+ * Revision 1.21 1995/11/01 16:25:52 quinn
+ * *** empty log message ***
+ *
+ * Revision 1.20 1995/10/27 14:00:12 adam
+ * Implemented detection of database availability.
+ *
+ * Revision 1.19 1995/10/17 18:02:11 adam
+ * New feature: databases. Implemented as prefix to words in dictionary.
+ *
+ * Revision 1.18 1995/10/16 14:03:09 quinn
+ * Changes to support element set names and espec1
+ *
+ * Revision 1.17 1995/10/16 09:32:40 adam
+ * More work on relational op.
+ *
+ * Revision 1.16 1995/10/13 12:26:44 adam
+ * Optimization of truncation.
+ *
+ * Revision 1.15 1995/10/12 12:40:55 adam
+ * Bug fixes in rpn_prox.
+ *
+ * Revision 1.14 1995/10/09 16:18:37 adam
+ * Function dict_lookup_grep got extra client data parameter.
+ *
+ * Revision 1.13 1995/10/06 14:38:00 adam
+ * New result set method: r_score.
+ * Local no (sysno) and score is transferred to retrieveCtrl.
+ *
+ * Revision 1.12 1995/10/06 13:52:06 adam
+ * Bug fixes. Handler may abort further scanning.
+ *
+ * Revision 1.11 1995/10/06 10:43:57 adam
+ * Scan added. 'occurrences' in scan entries not set yet.
+ *
+ * Revision 1.10 1995/10/02 16:43:32 quinn
+ * Set default resulting record type in fetch.
+ *
+ * Revision 1.9 1995/10/02 15:18:52 adam
+ * New member in recRetrieveCtrl: diagnostic.
+ *
+ * Revision 1.8 1995/09/28 09:19:47 adam
+ * xfree/xmalloc used everywhere.
+ * Extract/retrieve method seems to work for text records.
+ *
+ * Revision 1.7 1995/09/27 16:17:32 adam
+ * More work on retrieve.
+ *
+ * Revision 1.6 1995/09/08 08:53:22 adam
+ * Record buffer maintained in server_info.
+ *
+ * Revision 1.5 1995/09/06 16:11:18 adam
+ * Option: only one word key per file.
+ *
+ * Revision 1.4 1995/09/06 10:33:04 adam
+ * More work on present. Some log messages removed.
+ *
+ * Revision 1.3 1995/09/05 15:28:40 adam
* More work on search engine.
*
* Revision 1.2 1995/09/04 12:33:43 adam
#include <unistd.h>
#include <fcntl.h>
-#include "zserver.h"
-
-#include <backend.h>
+#include <common.h>
+#include <data1.h>
+#include <recctrl.h>
#include <dmalloc.h>
+#include "zserver.h"
ZServerInfo server_info;
r.errstring = 0;
r.handle = name;
+ logf (LOG_DEBUG, "bend_init");
+ data1_tabpath = res_get(common_resource, "data1_tabpath");
server_info.sets = NULL;
+#if RECORD_BASE
+ server_info.records = rec_open (0);
+#else
if (!(server_info.sys_idx_fd = open (FNAME_SYS_IDX, O_RDONLY)))
{
+ logf (LOG_WARN|LOG_ERRNO, "sys_idx open fail");
r.errcode = 1;
- r.errstring = "dict_open fail: filedict";
+ r.errstring = "sys_idx open fail";
return &r;
}
- if (!(server_info.fileDict = dict_open (FNAME_FILE_DICT, 5, 0)))
+#endif
+ if (!(server_info.fileDict = dict_open (FNAME_FILE_DICT, 10, 0)))
{
+ logf (LOG_WARN, "dict_open fail: fname dict");
r.errcode = 1;
- r.errstring = "dict_open fail: filedict";
+ r.errstring = "dict_open fail: fname dict";
return &r;
}
- if (!(server_info.wordDict = dict_open (FNAME_WORD_DICT, 20, 0)))
+ if (!(server_info.wordDict = dict_open (FNAME_WORD_DICT, 40, 0)))
{
+ logf (LOG_WARN, "dict_open fail: word dict");
dict_close (server_info.fileDict);
r.errcode = 1;
- r.errstring = "dict_open fail: worddict";
+ r.errstring = "dict_open fail: word dict";
return &r;
}
- if (!(server_info.wordIsam = is_open (FNAME_WORD_ISAM, key_compare, 0)))
+ if (!(server_info.wordIsam = is_open (FNAME_WORD_ISAM, key_compare, 0,
+ sizeof (struct it_key))))
{
+ logf (LOG_WARN, "is_open fail: word isam");
dict_close (server_info.wordDict);
dict_close (server_info.fileDict);
r.errcode = 1;
- r.errstring = "is_open fail: wordisam";
+ r.errstring = "is_open fail: word isam";
return &r;
}
+ server_info.odr = odr_createmem (ODR_ENCODE);
return &r;
}
r.errstring = 0;
r.hits = 0;
+ odr_reset (server_info.odr);
+ server_info.errCode = 0;
+ server_info.errString = NULL;
switch (q->query->which)
{
case Z_Query_type_1:
r.errcode = rpn_search (&server_info, q->query->u.type_1,
q->num_bases, q->basenames, q->setname,
&r.hits);
+ r.errstring = server_info.errString;
break;
default:
r.errcode = 107;
return &r;
}
+static int record_read (int fd, char *buf, size_t count)
+{
+ return read (fd, buf, count);
+}
+
+static int record_fetch (ZServerInfo *zi, int sysno, int score, ODR stream,
+ oid_value input_format, Z_RecordComposition *comp,
+ oid_value *output_format, char **rec_bufp,
+ int *rec_lenp)
+{
+#if RECORD_BASE
+ Record rec;
+#else
+ char record_info[SYS_IDX_ENTRY_LEN];
+#endif
+ char *fname, *file_type;
+ RecType rt;
+ struct recRetrieveCtrl retrieveCtrl;
+
+#if RECORD_BASE
+ rec = rec_get (zi->records, sysno);
+ file_type = rec->info[0];
+ fname = rec->info[1];
+#else
+ if (lseek (zi->sys_idx_fd, sysno * SYS_IDX_ENTRY_LEN,
+ SEEK_SET) == -1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "Retrieve: lseek of sys_idx");
+ exit (1);
+ }
+ if (read (zi->sys_idx_fd, record_info, SYS_IDX_ENTRY_LEN) == -1)
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "Retrieve: read of sys_idx");
+ exit (1);
+ }
+ file_type = record_info;
+ fname = record_info + strlen(record_info) + 1;
+#endif
+
+ if (!(rt = recType_byName (file_type)))
+ {
+ logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Cannot handle type %s",
+ file_type);
+ exit (1);
+ }
+ logf (LOG_DEBUG, "retrieve localno=%d score=%d", sysno, score);
+ if ((retrieveCtrl.fd = open (fname, O_RDONLY)) == -1)
+ {
+ char *msg = "Record doesn't exist";
+ logf (LOG_WARN|LOG_ERRNO, "Retrieve: Open record file %s", fname);
+ *output_format = VAL_SUTRS;
+ *rec_bufp = msg;
+ *rec_lenp = strlen (msg);
+#if RECORD_BASE
+ rec_rm (rec);
+#endif
+ return 0; /* or 14: System error in presenting records */
+ }
+ retrieveCtrl.localno = sysno;
+ retrieveCtrl.score = score;
+ retrieveCtrl.odr = stream;
+ retrieveCtrl.readf = record_read;
+ retrieveCtrl.input_format = retrieveCtrl.output_format = input_format;
+ retrieveCtrl.comp = comp;
+ retrieveCtrl.diagnostic = 0;
+ (*rt->retrieve)(&retrieveCtrl);
+ *output_format = retrieveCtrl.output_format;
+ *rec_bufp = retrieveCtrl.rec_buf;
+ *rec_lenp = retrieveCtrl.rec_len;
+ close (retrieveCtrl.fd);
+#if RECORD_BASE
+ rec_rm (rec);
+#endif
+ return retrieveCtrl.diagnostic;
+}
+
bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
{
static bend_fetchresult r;
int positions[2];
- ZServerRecord *records;
+ ZServerSetSysno *records;
r.errstring = 0;
r.last_in_set = 0;
r.basename = "base";
+ odr_reset (server_info.odr);
+ server_info.errCode = 0;
+
positions[0] = q->number;
- records = resultSetRecordGet (&server_info, q->setname, 1, positions);
+ records = resultSetSysnoGet (&server_info, q->setname, 1, positions);
if (!records)
{
logf (LOG_DEBUG, "resultSetRecordGet, error");
r.errcode = 13;
return &r;
}
- r.len = records[0].size;
- r.record = malloc (r.len+1);
- strcpy (r.record, records[0].buf);
- resultSetRecordDel (&server_info, records, 1);
- r.format = VAL_SUTRS;
- r.errcode = 0;
+ if (!records[0].sysno)
+ {
+ r.errcode = 13;
+ logf (LOG_DEBUG, "Out of range. pos=%d", q->number);
+ return &r;
+ }
+ r.errcode = record_fetch (&server_info, records[0].sysno,
+ records[0].score, q->stream, q->format,
+ q->comp, &r.format, &r.record, &r.len);
+ resultSetSysnoDel (&server_info, records, 1);
return &r;
}
bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
{
- static struct scan_entry list[200];
- static char buf[200][200];
static bend_scanresult r;
- int i;
+ int status;
+
+ odr_reset (server_info.odr);
+ server_info.errCode = 0;
+ server_info.errString = 0;
r.term_position = q->term_position;
r.num_entries = q->num_entries;
- r.entries = list;
- for (i = 0; i < r.num_entries; i++)
- {
- list[i].term = buf[i];
- sprintf(list[i].term, "term-%d", i+1);
- list[i].occurrences = rand() % 100000;
- }
- r.errcode = 0;
- r.errstring = 0;
+ r.errcode = rpn_scan (&server_info, q->term,
+ q->num_bases, q->basenames,
+ &r.term_position,
+ &r.num_entries, &r.entries, &status);
+ r.errstring = server_info.errString;
+ r.status = status;
return &r;
}
dict_close (server_info.fileDict);
dict_close (server_info.wordDict);
is_close (server_info.wordIsam);
+#if RECORD_BASE
+ rec_close (&server_info.records);
+#else
close (server_info.sys_idx_fd);
+#endif
return;
}
projects / idzebra-moved-to-github.git / blobdiff