hash_ops.h

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/************************************************************************
 * Copyright (C) 2007-2008 Philipp Marek.
 *
 * This program is free software;  you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 3 as
 * published by the Free Software Foundation.
 ************************************************************************/

#ifndef __HASH_OPS_H
#define __HASH_OPS_H

#include "global.h"
#include <db.h>

typedef struct hash_s *hash_t;
struct hash_s
{
    GDBM_FILE db;
    /* Should that simply be a hash_t? We'd get a bit cleaner code, but would 
     * waste a few bytes. */
    GDBM_FILE to_delete;
    char *filename;
};



int hsh__new(char *wcfile, char *name, int gdbm_mode, 
        hash_t *hash);
#define HASH_TEMPORARY ((GDBM_NEWDB | GDBM_READER | \
            GDBM_WRCREAT | GDBM_WRITER) +1)

#define HASH_REMEMBER_FILENAME (0x40000000)

#define HASH__LIST_MAX (32)

int hsh__insert_pointer(hash_t hash, datum key, void* value);


int hsh__list_get(hash_t hash, 
        datum current_key, datum *next_key, 
        struct estat **arr[], int *found);
int hsh__store_charp(hash_t db, char *key, char *value);
int hsh__store(hash_t db, datum key, datum value);
int hsh__fetch(hash_t db, datum key, datum *value);

int hsh__first(hash_t db, datum *key);
int hsh__next(hash_t db, datum *key, const datum *oldkey);

int hsh__register_delete(hash_t db, datum key);

int hsh__close(hash_t db, int has_failed);
int hsh__collect_garbage(hash_t db, int *did_remove);
#endif

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