qemu/qobject/qobject.c

64 lines
1.7 KiB
C

/*
* QObject
*
* Copyright (C) 2015 Red Hat, Inc.
*
* 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 "qemu/osdep.h"
#include "qemu-common.h"
#include "qapi/qmp/qbool.h"
#include "qapi/qmp/qnull.h"
#include "qapi/qmp/qnum.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qlist.h"
#include "qapi/qmp/qstring.h"
static void (*qdestroy[QTYPE__MAX])(QObject *) = {
[QTYPE_NONE] = NULL, /* No such object exists */
[QTYPE_QNULL] = NULL, /* qnull_ is indestructible */
[QTYPE_QNUM] = qnum_destroy_obj,
[QTYPE_QSTRING] = qstring_destroy_obj,
[QTYPE_QDICT] = qdict_destroy_obj,
[QTYPE_QLIST] = qlist_destroy_obj,
[QTYPE_QBOOL] = qbool_destroy_obj,
};
void qobject_destroy(QObject *obj)
{
assert(!obj->refcnt);
assert(QTYPE_QNULL < obj->type && obj->type < QTYPE__MAX);
qdestroy[obj->type](obj);
}
static bool (*qis_equal[QTYPE__MAX])(const QObject *, const QObject *) = {
[QTYPE_NONE] = NULL, /* No such object exists */
[QTYPE_QNULL] = qnull_is_equal,
[QTYPE_QNUM] = qnum_is_equal,
[QTYPE_QSTRING] = qstring_is_equal,
[QTYPE_QDICT] = qdict_is_equal,
[QTYPE_QLIST] = qlist_is_equal,
[QTYPE_QBOOL] = qbool_is_equal,
};
bool qobject_is_equal(const QObject *x, const QObject *y)
{
/* We cannot test x == y because an object does not need to be
* equal to itself (e.g. NaN floats are not). */
if (!x && !y) {
return true;
}
if (!x || !y || x->type != y->type) {
return false;
}
assert(QTYPE_NONE < x->type && x->type < QTYPE__MAX);
return qis_equal[x->type](x, y);
}