-/*
- * Copyright (C) 1994-1995, Index Data I/S
- * All rights reserved.
- * Sebastian Hammer, Adam Dickmeiss
- *
- * $Log: recindex.h,v $
- * Revision 1.4 1995-11-22 17:19:19 adam
- * Record management uses the bfile system.
- *
- * Revision 1.3 1995/11/20 16:59:46 adam
- * New update method: the 'old' keys are saved for each records.
- *
- * Revision 1.2 1995/11/15 19:13:08 adam
- * Work on record management.
- *
- * Revision 1.1 1995/11/15 14:46:21 adam
- * Started work on better record management system.
- *
- */
+/* This file is part of the Zebra server.
+ Copyright (C) 1994-2011 Index Data
+
+Zebra is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+*/
+
+#ifndef RECINDEX_H
+#define RECINDEX_H
+
+#include <idzebra/util.h>
+#include <zebra-lock.h>
+#include <idzebra/bfile.h>
-#include <alexutil.h>
+YAZ_BEGIN_CDECL
-#define REC_NO_INFO 4
+#define REC_NO_INFO 8
typedef struct record_info {
- int sysno;
+ zint sysno;
+ int newFlag;
char *info[REC_NO_INFO];
size_t size[REC_NO_INFO];
+ char buf_size[REC_NO_INFO][6];
+ size_t size_size[REC_NO_INFO];
+ Zebra_mutex mutex;
} *Record;
typedef struct records_info *Records;
-Record rec_cp (Record rec);
-void rec_del (Records p, Record *recpp);
-void rec_rm (Record *recpp);
-void rec_put (Records p, Record *recpp);
-Record rec_new (Records p);
-Record rec_get (Records p, int sysno);
-void rec_close (Records *p);
-Records rec_open (int rw);
-char *rec_strdup (const char *s, size_t *len);
+/** \brief marks record for deletion (on file storage)
+ \param p records handle
+ \param recpp record pointer
+ \returns ZEBRA_OK / ZEBRA_FAIL
+*/
+ZEBRA_RES rec_del(Records p, Record *recpp);
+
+/** \brief frees record (from memory)
+ \param recpp record pointer
+*/
+void rec_free(Record *recpp);
+
+/** \brief puts record (writes into file storage)
+ \param p records handle
+ \param recpp record pointer
+ \returns ZEBRA_OK / ZEBRA_FAIL
+*/
+ZEBRA_RES rec_put(Records p, Record *recpp);
+
+/** \brief creates new record (to be written to file storage)
+ \param p records handle
+ \returns record pointer (or NULL on error)
+*/
+Record rec_new(Records p);
+/** \brief gets record - with given system number
+ \param p records handle
+ \param sysno system ID (external number)
+ \returns record pointer (or NULL on error)
+*/
+Record rec_get(Records p, zint sysno);
+
+/** \brief gets root record
+ \param p records handle
+ \returns record pointer (or NULL on error)
+*/
+Record rec_get_root(Records p);
+
+
+/** \brief gets next record - with given records
+ \param p records handle
+ \param rec record
+ \returns record pointer (or NULL on error)
+*/
+Record rec_get_next(Records p, Record rec);
+
+ZEBRA_RES rec_close (Records *p);
+
+/** \brief opens records system
+ \param bfs block file storage
+ \param rw read-write flag(0=read only, 1=write)
+ \param compression_method REC_COMPRESS_ type
+*/
+Records rec_open(BFiles bfs, int rw, int compression_method);
+
+/** \brief check whether a compression method is supported
+ \param compression_method (REC_COMPRESS_..)
+ \retval 0 if method is unsupported
+ \retval 1 if method is supported
+*/
+int rec_check_compression_method(int compression_method);
+
+char *rec_strdup(const char *s, size_t *len);
+void rec_prstat(Records p, int verbose);
+
+zint rec_sysno_to_int(zint sysno);
+
+
+/** \brief No compression ("none") */
+#define REC_COMPRESS_NONE 0
+/** \brief BZIP2 compression (slow and requires big chunks) */
+#define REC_COMPRESS_BZIP2 1
+/** \brief zlib compression (faster and works off small chunks) */
+#define REC_COMPRESS_ZLIB 2
+
+
+enum {
+ recInfo_fileType,
+ recInfo_filename,
+ recInfo_delKeys,
+ recInfo_databaseName,
+ recInfo_storeData,
+ recInfo_attr,
+ recInfo_sortKeys
+};
+
+typedef struct recindex *recindex_t;
+
+/** \brief opens record index handle
+ \param bfs Block files handle
+ \param rw 1 for read and write; 0 for read-only
+ \param use_isamb 1 if ISAMB is to used for record index; 0 for flat (old)
+*/
+recindex_t recindex_open(BFiles bfs, int rw, int use_isamb);
+
+/** \brief closes record index handle
+ \param p records handle
+*/
+void recindex_close(recindex_t p);
+int recindex_read_head(recindex_t p, void *buf);
+const char *recindex_get_fname(recindex_t p);
+ZEBRA_RES recindex_write_head(recindex_t p, const void *buf, size_t len);
+int recindex_read_indx(recindex_t p, zint sysno, void *buf, int itemsize,
+ int ignoreError);
+void recindex_write_indx(recindex_t p, zint sysno, void *buf, int itemsize);
+
+YAZ_END_CDECL
+#endif
+/*
+ * Local variables:
+ * c-basic-offset: 4
+ * c-file-style: "Stroustrup"
+ * indent-tabs-mode: nil
+ * End:
+ * vim: shiftwidth=4 tabstop=8 expandtab
+ */
+
projects / idzebra-moved-to-github.git / blobdiff