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68396ea @rmustacc Initial commit of d32e8d0b8d9e0ef7cf7ab2e74548982972789dfc from qemu-kvm
rmustacc authored
1 /*
2 * QInt Module
3 *
4 * Copyright (C) 2009 Red Hat Inc.
5 *
6 * Authors:
7 * Luiz Capitulino <lcapitulino@redhat.com>
8 *
9 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
10 * See the COPYING.LIB file in the top-level directory.
11 */
12
13 #include "qint.h"
14 #include "qobject.h"
15 #include "qemu-common.h"
16
17 static void qint_destroy_obj(QObject *obj);
18
19 static const QType qint_type = {
20 .code = QTYPE_QINT,
21 .destroy = qint_destroy_obj,
22 };
23
24 /**
25 * qint_from_int(): Create a new QInt from an int64_t
26 *
27 * Return strong reference.
28 */
29 QInt *qint_from_int(int64_t value)
30 {
31 QInt *qi;
32
33 qi = qemu_malloc(sizeof(*qi));
34 qi->value = value;
35 QOBJECT_INIT(qi, &qint_type);
36
37 return qi;
38 }
39
40 /**
41 * qint_get_int(): Get the stored integer
42 */
43 int64_t qint_get_int(const QInt *qi)
44 {
45 return qi->value;
46 }
47
48 /**
49 * qobject_to_qint(): Convert a QObject into a QInt
50 */
51 QInt *qobject_to_qint(const QObject *obj)
52 {
53 if (qobject_type(obj) != QTYPE_QINT)
54 return NULL;
55
56 return container_of(obj, QInt, base);
57 }
58
59 /**
60 * qint_destroy_obj(): Free all memory allocated by a
61 * QInt object
62 */
63 static void qint_destroy_obj(QObject *obj)
64 {
65 assert(obj != NULL);
66 qemu_free(qobject_to_qint(obj));
67 }
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