/[zanavi_public1]/navit/navit/maptool/itembin_buffer.c
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Contents of /navit/navit/maptool/itembin_buffer.c

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Revision 8 - (show annotations) (download)
Fri Oct 28 21:39:42 2011 UTC (9 years, 1 month ago) by zoff99
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import
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 struct item_bin *
29 read_item(FILE *in)
30 {
31 struct item_bin *ib=(struct item_bin *) buffer;
32 for (;;) {
33 switch (item_bin_read(ib, in)) {
34 case 0:
35 return NULL;
36 case 2:
37 dbg_assert((ib->len+1)*4 < sizeof(buffer));
38 bytes_read+=(ib->len+1)*sizeof(int);
39 return ib;
40 default:
41 continue;
42 }
43 }
44 }
45
46 struct item_bin *
47 read_item_range(FILE *in, int *min, int *max)
48 {
49 struct range r;
50
51 if (fread(&r, sizeof(r), 1, in) != 1)
52 return NULL;
53 *min=r.min;
54 *max=r.max;
55 return read_item(in);
56 }
57
58 struct item_bin *
59 init_item(enum item_type type)
60 {
61 struct item_bin *ib=(struct item_bin *) buffer;
62
63 item_bin_init(ib, type);
64 return ib;
65 }

   
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