qobject/qint.c

   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 "qemu/osdep.h"
  14 #include "qapi/qmp/qint.h"
  15 #include "qapi/qmp/qobject.h"
  16 #include "qemu-common.h"
  17
  18 /**
  19  * qint_from_int(): Create a new QInt from an int64_t
  20  *
  21  * Return strong reference.
  22  */
  23 QInt *qint_from_int(int64_t value)
  24 {
  25     QInt *qi;
  26
  27     qi = g_malloc(sizeof(*qi));
  28     qobject_init(QOBJECT(qi), QTYPE_QINT);
  29     qi->value = value;
  30
  31     return qi;
  32 }
  33
  34 /**
  35  * qint_get_int(): Get the stored integer
  36  */
  37 int64_t qint_get_int(const QInt *qi)
  38 {
  39     return qi->value;
  40 }
  41
  42 /**
  43  * qobject_to_qint(): Convert a QObject into a QInt
  44  */
  45 QInt *qobject_to_qint(const QObject *obj)
  46 {
  47     if (!obj || qobject_type(obj) != QTYPE_QINT) {
  48         return NULL;
  49     }
  50     return container_of(obj, QInt, base);
  51 }
  52
  53 /**
  54  * qint_destroy_obj(): Free all memory allocated by a
  55  * QInt object
  56  */
  57 void qint_destroy_obj(QObject *obj)
  58 {
  59     assert(obj != NULL);
  60     g_free(qobject_to_qint(obj));
  61 }