xref: /illumos-kvm-cmd/qint.c (revision 68396ea9)
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  */
qint_from_int(int64_t value)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  */
qint_get_int(const QInt * qi)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  */
qobject_to_qint(const QObject * obj)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  */
qint_destroy_obj(QObject * obj)63 static void qint_destroy_obj(QObject *obj)
64 {
65     assert(obj != NULL);
66     qemu_free(qobject_to_qint(obj));
67 }
68