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/**
* Navit, a modular navigation system.
* Copyright (C) 2005-2011 Navit Team
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program 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 Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include <stdlib.h>
#include "maptool.h"
#include "debug.h"
/** Buffer for temporarily storing an item. */
static char misc_item_buffer[20000000];
/** An item_bin for temporary use. */
struct item_bin *tmp_item_bin=(struct item_bin *)(void *)misc_item_buffer;
/** A node_item for temporary use. */
static struct node_item *tmp_node_item=(struct node_item *)(void *)misc_item_buffer;
struct node_item *
read_node_item(FILE *in)
{
if (fread(tmp_node_item, sizeof(struct node_item), 1, in) != 1)
return NULL;
return tmp_node_item;
}
struct item_bin *
read_item(FILE *in)
{
struct item_bin *ib=(struct item_bin *) misc_item_buffer;
for (;;) {
switch (item_bin_read(ib, in)) {
case 0:
return NULL;
case 2:
dbg_assert((ib->len+1)*4 < sizeof(misc_item_buffer));
bytes_read+=(ib->len+1)*sizeof(int);
return ib;
default:
continue;
}
}
}
struct item_bin *
read_item_range(FILE *in, int *min, int *max)
{
struct range r;
if (fread(&r, sizeof(r), 1, in) != 1)
return NULL;
*min=r.min;
*max=r.max;
return read_item(in);
}
struct item_bin *
init_item(enum item_type type)
{
struct item_bin *ib=(struct item_bin *) misc_item_buffer;
item_bin_init(ib, type);
return ib;
}
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