matching.h

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/*
 * $Id: matching.h,v 1.6 2005/06/29 14:24:23 daichik Exp $
 *
 * Copyright (c) 2001-2003, Raphael Manfredi
 *
 *----------------------------------------------------------------------
 * This file is part of gtk-gnutella.
 *
 *  gtk-gnutella 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 of the License, or
 *  (at your option) any later version.
 *
 *  gtk-gnutella 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 gtk-gnutella; if not, write to the Free Software
 *  Foundation, Inc.:
 *      59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *----------------------------------------------------------------------
 */

#ifndef _core_matching_h_
#define _core_matching_h_

struct shared_file;

struct st_entry {
    gchar *string;
    struct shared_file *data;
    guint32 mask;
};

struct st_bin {
    gint nslots, nvals;
    struct st_entry **vals;
};

typedef guint8 char_map_t[256];     
typedef struct _search_table {
    gint nentries, nchars, nbins;
    struct st_bin **bins;
    struct st_bin all_entries;
    char_map_t index_map, fold_map;
} search_table_t;


struct query_hashvec;

size_t match_map_string(char_map_t map, gchar *string);

void st_initialize(search_table_t *, char_map_t);
void st_create(search_table_t *table);
void st_destroy(search_table_t *);
void st_insert_item(search_table_t *, const gchar *, struct shared_file *);
void st_compact(search_table_t *);

struct shared_file;

typedef void (*st_search_callback)(gpointer ctx, struct shared_file *sf);

void st_search(
    search_table_t *table,
    gchar *search,
    st_search_callback callback,
    gpointer ctx,
    gint max_res,
    struct query_hashvec *qhv);

#endif  /* _core_matching_h_ */

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