navit/maptool/itembin_buffer.c

/**
 * 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"


static char buffer[800000];
struct item_bin *item_bin=(struct item_bin *)(void *)buffer;

static struct node_item *node_item=(struct node_item *)(void *)buffer;

struct node_item *
read_node_item(FILE *in)
{
        if (fread(node_item, sizeof(struct node_item), 1, in) != 1)
                return NULL;
    return node_item;
}

struct item_bin *
read_item(FILE *in)
{
        struct item_bin *ib=(struct item_bin *) buffer;
        for (;;) {
                switch (item_bin_read(ib, in)) {
                case 0:
                        return NULL;
                case 2:
                        dbg_assert((ib->len+1)*4 < sizeof(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 *) buffer;

        item_bin_init(ib, type);
        return ib;
}
1	/**
2	* Navit, a modular navigation system.
3	* Copyright (C) 2005-2011 Navit Team
4	*
5	* This program is free software; you can redistribute it and/or
6	* modify it under the terms of the GNU General Public License
7	* version 2 as published by the Free Software Foundation.
8	*
9	* This program is distributed in the hope that it will be useful,
10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12	* GNU General Public License for more details.
13	*
14	* You should have received a copy of the GNU General Public License
15	* along with this program; if not, write to the
16	* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17	* Boston, MA 02110-1301, USA.
18	*/
19	#include <string.h>
20	#include <stdlib.h>
21	#include "maptool.h"
22	#include "debug.h"
23
24
25	static char buffer[800000];
26	struct item_bin item_bin=(struct item_bin )(void *)buffer;
27
28	static struct node_item node_item=(struct node_item )(void *)buffer;
29
30	struct node_item *
31	read_node_item(FILE *in)
32	{
33	if (fread(node_item, sizeof(struct node_item), 1, in) != 1)
34	return NULL;
35	return node_item;
36	}
37
38	struct item_bin *
39	read_item(FILE *in)
40	{
41	struct item_bin ib=(struct item_bin ) buffer;
42	for (;;) {
43	switch (item_bin_read(ib, in)) {
44	case 0:
45	return NULL;
46	case 2:
47	dbg_assert((ib->len+1)*4 < sizeof(buffer));
48	bytes_read+=(ib->len+1)*sizeof(int);
49	return ib;
50	default:
51	continue;
52	}
53	}
54	}
55
56	struct item_bin *
57	read_item_range(FILE in, int min, int *max)
58	{
59	struct range r;
60
61	if (fread(&r, sizeof(r), 1, in) != 1)
62	return NULL;
63	*min=r.min;
64	*max=r.max;
65	return read_item(in);
66	}
67
68	struct item_bin *
69	init_item(enum item_type type)
70	{
71	struct item_bin ib=(struct item_bin ) buffer;
72
73	item_bin_init(ib, type);
74	return ib;
75	}