Use statically known types, use hash for formats
[babeltrace.git] / types / integer.c
1 /*
2 * BabelTrace - Integer Type Converter
3 *
4 * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include <babeltrace/compiler.h>
22 #include <stdint.h>
23
24 size_t copy_integer(unsigned char *dest, const struct format *fdest,
25 const unsigned char *src, const struct format *fsrc,
26 const struct type_class *type_class)
27 {
28 struct type_class_integer *int_class =
29 container_of(type_class, struct type_class_integer, p);
30
31 if (!int_class->signedness) {
32 uint64_t v;
33
34 v = fsrc->uint_read(src, int_class->byte_order, int_class->len);
35 return fdest->uint_write(dest, int_class->byte_order,
36 int_class->len, v);
37 } else {
38 int64_t v;
39
40 v = fsrc->int_read(src, int_class->byte_order, int_class->len);
41 return fdest->int_write(dest, int_class->byte_order,
42 int_class->len, v);
43 }
44 }
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