/*
- * Copyright (C) 1995, Index Data I/S
+ * Copyright (C) 1995-1998, Index Data I/S
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: zserver.c,v $
- * Revision 1.1 1995-09-04 09:10:41 adam
+ * Revision 1.56 1998-03-05 08:45:13 adam
+ * New result set model and modular ranking system. Moved towards
+ * descent server API. System information stored as "SGML" records.
+ *
+ * Revision 1.55 1998/02/10 12:03:06 adam
+ * Implemented Sort.
+ *
+ * Revision 1.54 1998/01/29 13:39:13 adam
+ * Compress ISAM is default.
+ *
+ * Revision 1.53 1998/01/12 15:04:09 adam
+ * The test option (-s) only uses read-lock (and not write lock).
+ *
+ * Revision 1.52 1997/11/18 10:05:08 adam
+ * Changed character map facility so that admin can specify character
+ * mapping files for each register type, w, p, etc.
+ *
+ * Revision 1.51 1997/10/27 14:33:06 adam
+ * Moved towards generic character mapping depending on "structure"
+ * field in abstract syntax file. Fixed a few memory leaks. Fixed
+ * bug with negative integers when doing searches with relational
+ * operators.
+ *
+ * Revision 1.50 1997/09/29 09:08:36 adam
+ * Revised locking system to be thread safe for the server.
+ *
+ * Revision 1.49 1997/09/25 14:57:23 adam
+ * Windows NT port.
+ *
+ * Revision 1.48 1997/09/17 12:19:19 adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.47 1997/09/04 13:58:36 adam
+ * New retrieve/extract method tellf (added).
+ * Added O_BINARY for open calls.
+ *
+ * Revision 1.46 1997/07/28 08:30:47 adam
+ * Server returns diagnostic 14 when record doesn't exist.
+ *
+ * Revision 1.45 1996/12/23 15:30:45 adam
+ * Work on truncation.
+ * Bug fix: result sets weren't deleted after server shut down.
+ *
+ * Revision 1.44 1996/12/11 12:08:01 adam
+ * Added better compression.
+ *
+ * Revision 1.43 1996/11/15 15:03:58 adam
+ * Logging of execution speed by using the times(2) call.
+ *
+ * Revision 1.42 1996/11/08 11:10:36 adam
+ * Buffers used during file match got bigger.
+ * Compressed ISAM support everywhere.
+ * Bug fixes regarding masking characters in queries.
+ * Redesigned Regexp-2 queries.
+ *
+ * Revision 1.41 1996/10/29 14:09:56 adam
+ * Use of cisam system - enabled if setting isamc is 1.
+ *
+ * Revision 1.40 1996/06/04 10:19:02 adam
+ * Minor changes - removed include of ctype.h.
+ *
+ * Revision 1.39 1996/05/31 09:07:05 quinn
+ * Work on character-set handling
+ *
+ * Revision 1.38 1996/05/14 11:34:01 adam
+ * Scan support in multiple registers/databases.
+ *
+ * Revision 1.37 1996/05/14 06:16:48 adam
+ * Compact use/set bytes used in search service.
+ *
+ * Revision 1.36 1996/05/01 13:46:37 adam
+ * First work on multiple records in one file.
+ * New option, -offset, to the "unread" command in the filter module.
+ *
+ * Revision 1.35 1996/03/26 16:01:14 adam
+ * New setting lockPath: directory of various lock files.
+ *
+ * Revision 1.34 1996/03/20 09:36:46 adam
+ * Function dict_lookup_grep got extra parameter, init_pos, which marks
+ * from which position in pattern approximate pattern matching should occur.
+ * Approximate pattern matching is used in relevance=re-2.
+ *
+ * Revision 1.33 1996/01/17 14:57:56 adam
+ * Prototype changed for reader functions in extract/retrieve. File
+ * is identified by 'void *' instead of 'int.
+ *
+ * Revision 1.32 1995/12/11 09:12:58 adam
+ * The rec_get function returns NULL if record doesn't exist - will
+ * happen in the server if the result set records have been deleted since
+ * the creation of the set (i.e. the search).
+ * The server saves a result temporarily if it is 'volatile', i.e. the
+ * set is register dependent.
+ *
+ * Revision 1.31 1995/12/08 16:22:56 adam
+ * Work on update while servers are running. Three lock files introduced.
+ * The servers reload their registers when necessary, but they don't
+ * reestablish result sets yet.
+ *
+ * Revision 1.30 1995/12/07 17:38:48 adam
+ * Work locking mechanisms for concurrent updates/commit.
+ *
+ * Revision 1.29 1995/12/04 14:22:32 adam
+ * Extra arg to recType_byName.
+ * Started work on new regular expression parsed input to
+ * structured records.
+ *
+ * Revision 1.28 1995/11/28 09:09:48 adam
+ * Zebra config renamed.
+ * Use setting 'recordId' to identify record now.
+ * Bug fix in recindex.c: rec_release_blocks was invokeded even
+ * though the blocks were already released.
+ * File traversal properly deletes records when needed.
+ *
+ * Revision 1.27 1995/11/27 13:58:54 adam
+ * New option -t. storeStore data implemented in server.
+ *
+ * Revision 1.26 1995/11/25 10:24:07 adam
+ * More record fields - they are enumerated now.
+ * New options: flagStoreData flagStoreKey.
+ *
+ * Revision 1.25 1995/11/21 15:29:13 adam
+ * Config file 'base' read by default by both indexer and server.
+ *
+ * Revision 1.24 1995/11/20 16:59:47 adam
+ * New update method: the 'old' keys are saved for each records.
+ *
+ * Revision 1.23 1995/11/16 17:00:56 adam
+ * Better logging of rpn query.
+ *
+ * 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
+ * Various cleanup. YAZ util used instead.
+ *
+ * Revision 1.1 1995/09/04 09:10:41 adam
* More work on index add/del/update.
* Merge sort implemented.
* Initial work on z39 server.
*
*/
+
#include <stdio.h>
#include <assert.h>
+#include <fcntl.h>
+#ifdef WINDOWS
+#include <io.h>
+#include <process.h>
+#else
#include <unistd.h>
+#endif
-#include <util.h>
-#include "index.h"
+#include <data1.h>
+#include <dmalloc.h>
-char *prog;
+#include "zserver.h"
-int main (int argc, char **argv)
+static int bend_sort (void *handle, bend_sort_rr *rr);
+
+bend_initresult *bend_init (bend_initrequest *q)
+{
+ bend_initresult *r = odr_malloc (q->stream, sizeof(*r));
+ ZebraHandle zh;
+ struct statserv_options_block *sob;
+
+ r->errcode = 0;
+ r->errstring = 0;
+ q->bend_sort = bend_sort;
+
+ logf (LOG_DEBUG, "bend_init");
+
+ sob = statserv_getcontrol ();
+ if (!(zh = zebra_open (NULL, sob->configname)))
+ {
+ logf (LOG_FATAL, "Failed to open Zebra `%s'", sob->configname);
+ r->errcode = 1;
+ return r;
+ }
+ r->handle = zh;
+ return r;
+}
+
+bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
+{
+ ZebraHandle zh = handle;
+ bend_searchresult *r = odr_malloc (q->stream, sizeof(*r));
+
+ r->hits = 0;
+ r->errcode = 0;
+ r->errstring = NULL;
+
+ logf (LOG_LOG, "ResultSet '%s'", q->setname);
+ switch (q->query->which)
+ {
+ case Z_Query_type_1: case Z_Query_type_101:
+ zebra_search_rpn (zh, q->stream, q->query->u.type_1,
+ q->num_bases, q->basenames, q->setname);
+ r->errcode = zh->errCode;
+ r->errstring = zh->errString;
+ r->hits = zh->hits;
+ break;
+ default:
+ r->errcode = 107;
+ }
+ return r;
+}
+
+bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
+{
+ ZebraHandle zh = handle;
+ bend_fetchresult *r = odr_malloc (q->stream, sizeof(*r));
+ ZebraRetrievalRecord retrievalRecord;
+
+ retrievalRecord.position = q->number;
+
+ zebra_records_retrieve (zh, q->stream, q->setname, q->comp,
+ q->format, 1, &retrievalRecord);
+
+ if (zh->errCode)
+ {
+ r->errcode = zh->errCode;
+ r->errstring = zh->errString;
+ }
+ else
+ {
+ r->errcode = 0;
+ r->basename = retrievalRecord.base;
+ r->record = retrievalRecord.buf;
+ r->len = retrievalRecord.len;
+ r->format = retrievalRecord.format;
+ }
+ return r;
+}
+
+bend_deleteresult *bend_delete (void *handle, bend_deleterequest *q, int *num)
{
- int ret;
- char *arg;
- char *base_name = NULL;
+ return 0;
+}
- prog = *argv;
- while ((ret = options ("v:", argv, argc, &arg)) != -2)
+bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
+{
+ ZebraScanEntry *entries;
+ ZebraHandle zh = handle;
+ bend_scanresult *r = odr_malloc (q->stream, sizeof(*r));
+ int is_partial, i;
+
+ r->term_position = q->term_position;
+ r->num_entries = q->num_entries;
+
+ r->entries = odr_malloc (q->stream, sizeof(*r->entries) * q->num_entries);
+ zebra_scan (zh, q->stream, q->term,
+ q->attributeset,
+ q->num_bases, q->basenames,
+ &r->term_position,
+ &r->num_entries, &entries, &is_partial);
+ if (is_partial)
+ r->status = BEND_SCAN_PARTIAL;
+ else
+ r->status = BEND_SCAN_SUCCESS;
+ for (i = 0; i < r->num_entries; i++)
{
- if (ret == 0)
- {
- if (!base_name)
- {
- base_name = arg;
-
- common_resource = res_open (base_name);
- if (!common_resource)
- {
- log (LOG_FATAL, "Cannot open resource `%s'", base_name);
- exit (1);
- }
- }
- }
- else if (ret == 'v')
- {
- log_init (log_mask_str(arg), prog, NULL);
- }
- else
- {
- log (LOG_FATAL, "Unknown option '-%s'", arg);
- exit (1);
- }
+ r->entries[i].term = entries[i].term;
+ r->entries[i].occurrences = entries[i].occurrences;
}
- if (!base_name)
+ r->errcode = zh->errCode;
+ r->errstring = zh->errString;
+ return r;
+}
+
+void bend_close (void *handle)
+{
+ zebra_close ((ZebraHandle) handle);
+}
+
+int bend_sort (void *handle, bend_sort_rr *rr)
+{
+ ZebraHandle zh = handle;
+
+ zebra_sort (zh, rr->stream, rr->num_input_setnames, rr->input_setnames,
+ rr->output_setname, rr->sort_sequence, &rr->sort_status);
+ rr->errcode = zh->errCode;
+ rr->errstring = zh->errString;
+ return 0;
+}
+
+#ifndef WINDOWS
+static void pre_init (struct statserv_options_block *sob)
+{
+ char *pidfile = "zebrasrv.pid";
+ int fd = creat (pidfile, 0666);
+
+ if (fd == -1)
+ logf (LOG_WARN|LOG_ERRNO, "creat %s", pidfile);
+ else
{
- fprintf (stderr, "search [-v log] base ...\n");
- exit (1);
+ char pidstr[30];
+
+ sprintf (pidstr, "%ld", (long) getpid ());
+ write (fd, pidstr, strlen(pidstr));
+ close (fd);
}
- exit (0);
+}
+#endif
+
+int main (int argc, char **argv)
+{
+ struct statserv_options_block *sob;
+
+ sob = statserv_getcontrol ();
+ strcpy (sob->configname, FNAME_CONFIG);
+#ifndef WINDOWS
+ sob->pre_init = pre_init;
+#endif
+ statserv_setcontrol (sob);
+
+ return statserv_main (argc, argv);
}
projects / idzebra-moved-to-github.git / blobdiff