qbool.c

   1 /*
   2  * QBool Module
   3  *
   4  * Copyright IBM, Corp. 2009
   5  *
   6  * Authors:
   7  *  Anthony Liguori   <aliguori@us.ibm.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
  14 #include "qbool.h"
  15 #include "qobject.h"
  16 #include "qemu-common.h"
  17
  18 static void qbool_destroy_obj(QObject *obj);
  19
  20 static const QType qbool_type = {
  21     .code = QTYPE_QBOOL,
  22     .destroy = qbool_destroy_obj,
  23 };
  24
  25 /**
  26  * qbool_from_int(): Create a new QBool from an int
  27  *
  28  * Return strong reference.
  29  */
  30 QBool *qbool_from_int(int value)
  31 {
  32     QBool *qb;
  33
  34     qb = qemu_malloc(sizeof(*qb));
  35     qb->value = value;
  36     QOBJECT_INIT(qb, &qbool_type);
  37
  38     return qb;
  39 }
  40
  41 /**
  42  * qbool_get_int(): Get the stored int
  43  */
  44 int qbool_get_int(const QBool *qb)
  45 {
  46     return qb->value;
  47 }
  48
  49 /**
  50  * qobject_to_qbool(): Convert a QObject into a QBool
  51  */
  52 QBool *qobject_to_qbool(const QObject *obj)
  53 {
  54     if (qobject_type(obj) != QTYPE_QBOOL)
  55         return NULL;
  56
  57     return container_of(obj, QBool, base);
  58 }
  59
  60 /**
  61  * qbool_destroy_obj(): Free all memory allocated by a
  62  * QBool object
  63  */
  64 static void qbool_destroy_obj(QObject *obj)
  65 {
  66     assert(obj != NULL);
  67     qemu_free(qobject_to_qbool(obj));
  68 }