/*
- * Copyright (C) 1994-1995, Index Data I/S
+ * Copyright (C) 1995-1999, Index Data
* All rights reserved.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: zserver.c,v $
- * Revision 1.14 1995-10-09 16:18:37 adam
+ * Revision 1.75 1999-11-30 13:48:04 adam
+ * Improved installation. Updated for inclusion of YAZ header files.
+ *
+ * Revision 1.74 1999/11/29 15:13:26 adam
+ * Server sets implementationName - and Version.
+ *
+ * Revision 1.73 1999/11/04 15:00:45 adam
+ * Implemented delete result set(s).
+ *
+ * Revision 1.71 1999/07/14 10:59:26 adam
+ * Changed functions isc_getmethod, isams_getmethod.
+ * Improved fatal error handling (such as missing EXPLAIN schema).
+ *
+ * Revision 1.70 1999/06/10 12:14:56 adam
+ * Fixed to use bend_start instead of pre_init.
+ *
+ * Revision 1.69 1999/06/10 09:20:03 adam
+ * Minor change to pre_init handler.
+ *
+ * Revision 1.68 1999/05/26 07:49:13 adam
+ * C++ compilation.
+ *
+ * Revision 1.67 1999/02/02 14:51:14 adam
+ * Updated WIN32 code specific sections. Changed header.
+ *
+ * Revision 1.66 1998/10/28 10:54:41 adam
+ * SDRKit integration.
+ *
+ * Revision 1.65 1998/10/18 07:54:54 adam
+ * Additional info added for diagnostics 114 (Unsupported use attribute) and
+ * 121 (Unsupported attribute set).
+ *
+ * Revision 1.64 1998/09/22 10:48:21 adam
+ * Minor changes in search API.
+ *
+ * Revision 1.63 1998/09/02 13:53:21 adam
+ * Extra parameter decode added to search routines to implement
+ * persistent queries.
+ *
+ * Revision 1.62 1998/08/06 14:35:28 adam
+ * Routine bend_deleterequest removed.
+ *
+ * Revision 1.61 1998/06/24 12:16:15 adam
+ * Support for relations on text operands. Open range support in
+ * DFA module (i.e. [-j], [g-]).
+ *
+ * Revision 1.60 1998/06/22 11:36:49 adam
+ * Added authentication check facility to zebra.
+ *
+ * Revision 1.59 1998/06/12 12:22:13 adam
+ * Work on Zebra API.
+ *
+ * Revision 1.58 1998/05/27 16:57:46 adam
+ * Zebra returns surrogate diagnostic for single records when
+ * appropriate.
+ *
+ * Revision 1.57 1998/04/03 14:45:18 adam
+ * Fixed setting of last_in_set in bend_fetch.
+ *
+ * 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
* Initial work on z39 server.
*
*/
+
#include <stdio.h>
#include <assert.h>
-#include <unistd.h>
#include <fcntl.h>
+#ifdef WIN32
+#include <io.h>
+#include <process.h>
+#else
+#include <unistd.h>
+#endif
+
+#include <yaz/data1.h>
-#include <recctrl.h>
-#include <dmalloc.h>
#include "zserver.h"
-ZServerInfo server_info;
+#ifndef ZEBRASDR
+#define ZEBRASDR 0
+#endif
+#if ZEBRASDR
+#include "zebrasdr.h"
+#endif
+
+static int bend_sort (void *handle, bend_sort_rr *rr);
+static int bend_delete (void *handle, bend_delete_rr *rr);
bend_initresult *bend_init (bend_initrequest *q)
{
- static bend_initresult r;
- static char *name = "zserver";
+ bend_initresult *r = (bend_initresult *)
+ odr_malloc (q->stream, sizeof(*r));
+ ZebraHandle zh;
+ struct statserv_options_block *sob;
+ char *user = NULL;
+ char *passwd = NULL;
+
+ r->errcode = 0;
+ r->errstring = 0;
+ q->bend_sort = bend_sort;
+ q->bend_delete = bend_delete;
- r.errcode = 0;
- r.errstring = 0;
- r.handle = name;
+ q->implementation_name = "Z'mbol Information Server";
+ q->implementation_version = "Z'mbol 1.0";
- server_info.sets = NULL;
- if (!(server_info.sys_idx_fd = open (FNAME_SYS_IDX, O_RDONLY)))
+ logf (LOG_DEBUG, "bend_init");
+
+ sob = statserv_getcontrol ();
+ if (!(zh = zebra_open (sob->configname)))
{
- r.errcode = 1;
- r.errstring = "dict_open fail: filedict";
- return &r;
+ logf (LOG_FATAL, "Failed to open Zebra `%s'", sob->configname);
+ r->errcode = 1;
+ return r;
}
- if (!(server_info.fileDict = dict_open (FNAME_FILE_DICT, 10, 0)))
- {
- r.errcode = 1;
- r.errstring = "dict_open fail: filedict";
- return &r;
- }
- if (!(server_info.wordDict = dict_open (FNAME_WORD_DICT, 40, 0)))
+ if (q->auth)
{
- dict_close (server_info.fileDict);
- r.errcode = 1;
- r.errstring = "dict_open fail: worddict";
- return &r;
- }
- if (!(server_info.wordIsam = is_open (FNAME_WORD_ISAM, key_compare, 0,
- sizeof (struct it_key))))
+ if (q->auth->which == Z_IdAuthentication_open)
+ {
+ char *openpass = xstrdup (q->auth->u.open);
+ char *cp = strchr (openpass, '/');
+ if (cp)
+ {
+ *cp = '\0';
+ user = nmem_strdup (odr_getmem (q->stream), openpass);
+ passwd = nmem_strdup (odr_getmem (q->stream), cp+1);
+ }
+ xfree (openpass);
+ }
+ }
+ if (zebra_auth (zh, user, passwd))
{
- dict_close (server_info.wordDict);
- dict_close (server_info.fileDict);
- r.errcode = 1;
- r.errstring = "is_open fail: wordisam";
- return &r;
+ r->errcode = 222;
+ r->errstring = user;
+ zebra_close (zh);
+ return r;
}
- server_info.odr = odr_createmem (ODR_ENCODE);
- return &r;
+ r->handle = zh;
+ return r;
}
bend_searchresult *bend_search (void *handle, bend_searchrequest *q, int *fd)
{
- static bend_searchresult r;
+ ZebraHandle zh = (ZebraHandle) handle;
+ bend_searchresult *r = (bend_searchresult *)
+ odr_malloc (q->stream, sizeof(*r));
- r.errcode = 0;
- r.errstring = 0;
- r.hits = 0;
-
- odr_reset (server_info.odr);
- server_info.errCode = 0;
+ 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:
- r.errcode = rpn_search (&server_info, q->query->u.type_1,
- q->num_bases, q->basenames, q->setname,
- &r.hits);
+ case Z_Query_type_1: case Z_Query_type_101:
+ zebra_search_rpn (zh, q->decode, 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;
+ case Z_Query_type_2:
+ r->errcode = 107;
+ r->errstring = "type-2";
+ break;
default:
- r.errcode = 107;
+ r->errcode = 107;
}
- return &r;
-}
-
-static int record_read (int fd, char *buf, size_t count)
-{
- return read (fd, buf, count);
+ return r;
}
-static int record_fetch (ZServerInfo *zi, int sysno, int score, ODR stream,
- oid_value input_format, oid_value *output_format,
- char **rec_bufp, int *rec_lenp)
+bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
{
- char record_info[SYS_IDX_ENTRY_LEN];
- char *fname, *file_type;
- RecType rt;
- struct recRetrieveCtrl retrieveCtrl;
+ ZebraHandle zh = (ZebraHandle) handle;
+ bend_fetchresult *r = (bend_fetchresult *)
+ odr_malloc (q->stream, sizeof(*r));
+ ZebraRetrievalRecord retrievalRecord;
- 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)
+ retrievalRecord.position = q->number;
+
+ r->last_in_set = 0;
+ zebra_records_retrieve (zh, q->stream, q->setname, q->comp,
+ q->format, 1, &retrievalRecord);
+ if (zh->errCode) /* non Surrogate Diagnostic */
{
- logf (LOG_FATAL|LOG_ERRNO, "Retrieve: read of sys_idx");
- exit (1);
+ r->errcode = zh->errCode;
+ r->errstring = zh->errString;
}
- file_type = record_info;
- fname = record_info + strlen(record_info) + 1;
- if (!(rt = recType_byName (file_type)))
+ else if (retrievalRecord.errCode) /* Surrogate Diagnostic */
{
- logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Cannot handle type %s",
- file_type);
- exit (1);
+ q->surrogate_flag = 1;
+ r->errcode = retrievalRecord.errCode;
+ r->errstring = retrievalRecord.errString;
+ r->basename = retrievalRecord.base;
}
- if ((retrieveCtrl.fd = open (fname, O_RDONLY)) == -1)
+ else /* Database Record */
{
- logf (LOG_FATAL|LOG_ERRNO, "Retrieve: Open record file %s", fname);
- exit (1);
+ r->errcode = 0;
+ r->basename = retrievalRecord.base;
+ r->record = retrievalRecord.buf;
+ r->len = retrievalRecord.len;
+ r->format = retrievalRecord.format;
}
- logf (LOG_DEBUG, "retrieve localno=%d score=%d", sysno, score);
- retrieveCtrl.localno = sysno;
- retrieveCtrl.score = score;
- retrieveCtrl.odr = stream;
- retrieveCtrl.readf = record_read;
- retrieveCtrl.input_format = retrieveCtrl.output_format = input_format;
- retrieveCtrl.diagnostic = 0;
- (*rt->retrieve)(&retrieveCtrl);
- *output_format = retrieveCtrl.output_format;
- *rec_bufp = retrieveCtrl.rec_buf;
- *rec_lenp = retrieveCtrl.rec_len;
- close (retrieveCtrl.fd);
- return retrieveCtrl.diagnostic;
+ return r;
}
-bend_fetchresult *bend_fetch (void *handle, bend_fetchrequest *q, int *num)
+bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
{
- static bend_fetchresult r;
- int positions[2];
- ZServerSetSysno *records;
+ ZebraScanEntry *entries;
+ ZebraHandle zh = (ZebraHandle) handle;
+ bend_scanresult *r = (bend_scanresult *)
+ odr_malloc (q->stream, sizeof(*r));
+ int is_partial, i;
+
+ r->term_position = q->term_position;
+ r->num_entries = q->num_entries;
- 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 = resultSetSysnoGet (&server_info, q->setname, 1, positions);
- if (!records)
- {
- logf (LOG_DEBUG, "resultSetRecordGet, error");
- r.errcode = 13;
- return &r;
- }
- if (!records[0].sysno)
+ r->entries = (struct scan_entry *)
+ 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++)
{
- r.errcode = 13;
- logf (LOG_DEBUG, "Out of range. pos=%d", q->number);
- return &r;
+ r->entries[i].term = entries[i].term;
+ r->entries[i].occurrences = entries[i].occurrences;
}
- r.errcode = record_fetch (&server_info, records[0].sysno,
- records[0].score, q->stream,
- q->format, &r.format, &r.record, &r.len);
- return &r;
+ r->errcode = zh->errCode;
+ r->errstring = zh->errString;
+ return r;
}
-bend_deleteresult *bend_delete (void *handle, bend_deleterequest *q, int *num)
+void bend_close (void *handle)
{
- return 0;
+ zebra_close ((ZebraHandle) handle);
}
-bend_scanresult *bend_scan (void *handle, bend_scanrequest *q, int *num)
+int bend_sort (void *handle, bend_sort_rr *rr)
{
- static bend_scanresult r;
- int status;
+ ZebraHandle zh = (ZebraHandle) handle;
+
+ zebra_sort (zh, rr->stream,
+ rr->num_input_setnames, (const char **) rr->input_setnames,
+ rr->output_setname, rr->sort_sequence, &rr->sort_status);
+ rr->errcode = zh->errCode;
+ rr->errstring = zh->errString;
+ return 0;
+}
- odr_reset (server_info.odr);
- server_info.errCode = 0;
+int bend_delete (void *handle, bend_delete_rr *rr)
+{
+ ZebraHandle zh = (ZebraHandle) handle;
- r.errstring = 0;
- r.term_position = q->term_position;
- r.num_entries = q->num_entries;
- r.errcode = rpn_scan (&server_info, server_info.odr, q->term,
- &r.term_position,
- &r.num_entries, &r.entries, &status);
- r.status = status;
- return &r;
+ rr->delete_status = zebra_deleleResultSet(zh, rr->function,
+ rr->num_setnames, rr->setnames,
+ rr->statuses);
+ return 0;
}
-void bend_close (void *handle)
+#ifndef WIN32
+static void bend_start (struct statserv_options_block *sob)
{
- dict_close (server_info.fileDict);
- dict_close (server_info.wordDict);
- is_close (server_info.wordIsam);
- close (server_info.sys_idx_fd);
- return;
+ if (!sob->inetd)
+ {
+ char *pidfile = "zebrasrv.pid";
+ int fd = creat (pidfile, 0666);
+ if (fd == -1)
+ logf (LOG_WARN|LOG_ERRNO, "creat %s", pidfile);
+ else
+ {
+ char pidstr[30];
+
+ sprintf (pidstr, "%ld", (long) getpid ());
+ write (fd, pidstr, strlen(pidstr));
+ close (fd);
+ }
+ }
}
+#endif
int main (int argc, char **argv)
{
- char *base_name = "base";
+ struct statserv_options_block *sob;
- if (!(common_resource = res_open (base_name)))
- {
- logf (LOG_FATAL, "Cannot open resource `%s'", base_name);
- exit (1);
- }
+ sob = statserv_getcontrol ();
+ strcpy (sob->configname, FNAME_CONFIG);
+#ifndef WIN32
+ sob->bend_start = bend_start;
+#endif
+ statserv_setcontrol (sob);
+
+#if ZEBRASDR
+ zebraSdr_std ();
+#endif
return statserv_main (argc, argv);
}
projects / idzebra-moved-to-github.git / blobdiff