Add stddef.h include for offsetof
[babeltrace.git] / formats / ctf / types / enum.c
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1/*
2 * Common Trace Format
3 *
4 * Enumeration mapping strings (quarks) from/to integers.
5 *
de0ba614 6 * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6dc2ca62 7 *
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8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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21 */
22
d79865b9 23#include <babeltrace/ctf/types.h>
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24#include <stdint.h>
25#include <glib.h>
26
bed864a7 27GQuark ctf_enum_read(struct stream_pos *pos,
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28 const struct type_class_enum *src)
29{
7fe00194 30 struct type_class_integer *int_class = &src->p;
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31
32 if (!int_class->signedness) {
33 uint64_t v;
34
7fe00194 35 v = ctf_uint_read(pos, int_class);
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36 return enum_uint_to_quark(src, v);
37 } else {
38 int64_t v;
39
7fe00194 40 v = fsrc->ctf_int_read(pos, int_class);
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41 return enum_int_to_quark(src, v);
42 }
43}
44
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45size_t ctf_enum_write(struct stream_pos *pos,
46 const struct type_class_enum *dest,
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47 GQuark q)
48{
7fe00194 49 struct type_class_integer *int_class = &dest->p;
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50
51 if (!int_class->signedness) {
52 uint64_t v;
53
54 v = enum_quark_to_uint(dest, q);
7fe00194 55 return ctf_uint_write(pos, int_class, v);
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56 } else {
57 int64_t v;
58
59 v = enum_quark_to_int(dest, q);
7fe00194 60 return ctf_int_write(pos, int_class, v);
448d3cc7 61 }
6dc2ca62 62}
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