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