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fc93b2bd MD |
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> | |
698f0fe4 | 22 | #include <babeltrace/align.h> |
fc93b2bd MD |
23 | #include <stdint.h> |
24 | ||
698f0fe4 | 25 | size_t integer_copy(unsigned char *dest, const struct format *fdest, |
fc93b2bd MD |
26 | const unsigned char *src, const struct format *fsrc, |
27 | const struct type_class *type_class) | |
28 | { | |
29 | struct type_class_integer *int_class = | |
30 | container_of(type_class, struct type_class_integer, p); | |
31 | ||
698f0fe4 MD |
32 | if (fsrc->p.alignment) |
33 | src = PTR_ALIGN(src, fsrc->p.alignment / CHAR_BIT); | |
34 | if (fdest->p.alignment) | |
35 | dest = PTR_ALIGN(dest, fdest->p.alignment / CHAR_BIT); | |
36 | ||
fc93b2bd MD |
37 | if (!int_class->signedness) { |
38 | uint64_t v; | |
39 | ||
698f0fe4 MD |
40 | v = fsrc->uint_read(src, int_class->len, int_class->byte_order); |
41 | return fdest->uint_write(dest, int_class->len, int_class->byte_order, v); | |
fc93b2bd MD |
42 | } else { |
43 | int64_t v; | |
44 | ||
698f0fe4 MD |
45 | v = fsrc->int_read(src, int_class->len, int_class->byte_order); |
46 | return fdest->int_write(dest, int_class->len, int_class->byte_order, v); | |
fc93b2bd MD |
47 | } |
48 | } | |
698f0fe4 MD |
49 | |
50 | int integer_type_new(const char *name, size_t alignment, size_t len, | |
51 | int byte_order, int signedness) | |
52 | { | |
53 | struct type_class_integer int_class; | |
54 | int ret; | |
55 | ||
56 | /* | |
57 | * Freed when type is unregistered. | |
58 | */ | |
59 | int_class = g_new(struct type_class_integer, 1); | |
60 | int_class->p.name = g_quark_from_string(name); | |
61 | int_class->p.alignment = alignment; | |
62 | int_class->p.copy = integer_copy; | |
63 | int_class->len = len; | |
64 | int_class->byte_order = byte_order; | |
65 | int_class->signedness = signedness; | |
66 | ret = ctf_register_type(&int_class.p); | |
67 | if (ret) | |
68 | g_free(int_class); | |
69 | return ret; | |
70 | } | |
71 | ||
72 | /* TODO: integer_type_free */ |