mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-24 03:59:52 +00:00
14b6160099
qobject_to_qbool() crashes on null, which is a trap for the unwary. Return null instead, and simplify a few callers. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1444918537-18107-3-git-send-email-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
69 lines
1.2 KiB
C
69 lines
1.2 KiB
C
/*
|
|
* QBool Module
|
|
*
|
|
* Copyright IBM, Corp. 2009
|
|
*
|
|
* Authors:
|
|
* Anthony Liguori <aliguori@us.ibm.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
|
|
* See the COPYING.LIB file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#include "qapi/qmp/qbool.h"
|
|
#include "qapi/qmp/qobject.h"
|
|
#include "qemu-common.h"
|
|
|
|
static void qbool_destroy_obj(QObject *obj);
|
|
|
|
static const QType qbool_type = {
|
|
.code = QTYPE_QBOOL,
|
|
.destroy = qbool_destroy_obj,
|
|
};
|
|
|
|
/**
|
|
* qbool_from_bool(): Create a new QBool from a bool
|
|
*
|
|
* Return strong reference.
|
|
*/
|
|
QBool *qbool_from_bool(bool value)
|
|
{
|
|
QBool *qb;
|
|
|
|
qb = g_malloc(sizeof(*qb));
|
|
qb->value = value;
|
|
QOBJECT_INIT(qb, &qbool_type);
|
|
|
|
return qb;
|
|
}
|
|
|
|
/**
|
|
* qbool_get_bool(): Get the stored bool
|
|
*/
|
|
bool qbool_get_bool(const QBool *qb)
|
|
{
|
|
return qb->value;
|
|
}
|
|
|
|
/**
|
|
* qobject_to_qbool(): Convert a QObject into a QBool
|
|
*/
|
|
QBool *qobject_to_qbool(const QObject *obj)
|
|
{
|
|
if (!obj || qobject_type(obj) != QTYPE_QBOOL) {
|
|
return NULL;
|
|
}
|
|
return container_of(obj, QBool, base);
|
|
}
|
|
|
|
/**
|
|
* qbool_destroy_obj(): Free all memory allocated by a
|
|
* QBool object
|
|
*/
|
|
static void qbool_destroy_obj(QObject *obj)
|
|
{
|
|
assert(obj != NULL);
|
|
g_free(qobject_to_qbool(obj));
|
|
}
|