/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
*
* Copyright (C) 2000 Helix Code, Inc.
*
* Authors: Michael Zucchi <notzed@helixcode.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License
* as published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with the Gnome Library; see the file COPYING.LIB. If not,
* write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _WORDINDEX_H
#define _WORDINDEX_H
#include <glib.h>
#include "block.h"
#include "index.h"
struct _IBEXWord;
/* not used yet */
typedef void (*IBEXNormaliseFunc)(char *source, int len, char *dest);
struct _IBEXWordClass {
int (*sync)(struct _IBEXWord *);
int (*flush)(struct _IBEXWord *);
int (*close)(struct _IBEXWord *);
void (*index_pre)(struct _IBEXWord *); /* get ready for doing a lot of indexing. may be a nop */
void (*index_post)(struct _IBEXWord *);
void (*unindex_name)(struct _IBEXWord *, const char *name); /* unindex all entries for name */
gboolean (*contains_name)(struct _IBEXWord *, const char *name); /* index contains data for name */
GPtrArray *(*find)(struct _IBEXWord *, const char *word); /* returns all matches for word */
gboolean (*find_name)(struct _IBEXWord *, const char *name, const char *word); /* find if name contains word */
void (*add)(struct _IBEXWord *, const char *name, const char *word); /* adds a single word to name */
void (*add_list)(struct _IBEXWord *, const char *name, GPtrArray *words);/* adds a bunch of words to a given name */
};
struct _IBEXWord {
struct _IBEXWordClass *klass;
struct _IBEXStore *wordstore;
struct _IBEXIndex *wordindex;
struct _IBEXStore *namestore;
struct _IBEXIndex *nameindex;
/* word caching info (should probably be modularised) */
GHashTable *wordcache; /* word->struct _wordcache mapping */
struct _list wordnodes; /* LRU list of wordcache structures */
int wordcount; /* how much space used in cache */
int precount;
GHashTable *namecache; /* a list of names (only), cached for quick reference */
int nameinit;
};
struct _IBEXWord *ibex_create_word_index(struct _memcache *bc, blockid_t *wordroot, blockid_t *nameroot);
/* alternate implemenation */
struct _IBEXWord *ibex_create_word_index_mem(struct _memcache *bc, blockid_t *wordroot, blockid_t *nameroot);
#endif /* !_WORDINDEX_H */
