Add array
[babeltrace.git] / types / array.c
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1/*
2 * BabelTrace - Array 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 <babeltrace/types.h>
23
24void array_copy(struct stream_pos *dest, const struct format *fdest,
25 struct stream_pos *src, const struct format *fsrc,
26 const struct type_class *type_class)
27{
28 struct type_class_array *array_class =
29 container_of(type_class, struct type_class_array, p);
30 unsigned int i;
31
32 fsrc->array_begin(src, array_class);
33 fdest->array_begin(dest, array_class);
34
35 for (i = 0; i < array_class->len; i++) {
36 struct type_class *elem_class = array_class->elem;
37 elem_class->copy(dest, fdest, src, fsrc, &elem_class->p);
38 }
39 fsrc->array_end(src, array_class);
40 fdest->array_end(dest, array_class);
41}
42
43void array_type_free(struct type_class_array *array_class)
44{
45 array_class->elem->free(&array_class->elem->p);
46 g_free(array_class);
47}
48
49static void _array_type_free(struct type_class *type_class)
50{
51 struct type_class_struct *array_class =
52 container_of(type_class, struct type_class_array, p);
53 array_type_free(array_class);
54}
55
56struct type_class_array *array_type_new(const char *name, size_t len,
57 struct type_class *elem)
58{
59 struct type_class_array *array_class;
60 int ret;
61
62 array_class = g_new(struct type_class_array, 1);
63 type_class = &float_class->p;
64
65 array_class->len = len;
66 type_class->name = g_quark_from_string(name);
67 /* No need to align the array, the first element will align itself */
68 type_class->alignment = 1;
69 type_class->copy = array_copy;
70 type_class->free = _array_type_free;
71
72 if (type_class->name) {
73 ret = ctf_register_type(type_class);
74 if (ret)
75 goto error_register;
76 }
77 return array_class;
78
79error_register:
80 g_free(array_class);
81 return NULL;
82}
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