b38dd678a2
This generic function (along with its implementations for different types) determines whether two QObjects are equal. Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: 20171114180128.17076-4-mreitz@redhat.com Signed-off-by: Max Reitz <mreitz@redhat.com>
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/*
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* QObject
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*
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* Copyright (C) 2015 Red Hat, Inc.
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1
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* or later. See the COPYING.LIB file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qapi/qmp/types.h"
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static void (*qdestroy[QTYPE__MAX])(QObject *) = {
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[QTYPE_NONE] = NULL, /* No such object exists */
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[QTYPE_QNULL] = NULL, /* qnull_ is indestructible */
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[QTYPE_QNUM] = qnum_destroy_obj,
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[QTYPE_QSTRING] = qstring_destroy_obj,
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[QTYPE_QDICT] = qdict_destroy_obj,
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[QTYPE_QLIST] = qlist_destroy_obj,
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[QTYPE_QBOOL] = qbool_destroy_obj,
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};
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void qobject_destroy(QObject *obj)
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{
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assert(!obj->refcnt);
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assert(QTYPE_QNULL < obj->type && obj->type < QTYPE__MAX);
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qdestroy[obj->type](obj);
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}
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static bool (*qis_equal[QTYPE__MAX])(const QObject *, const QObject *) = {
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[QTYPE_NONE] = NULL, /* No such object exists */
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[QTYPE_QNULL] = qnull_is_equal,
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[QTYPE_QNUM] = qnum_is_equal,
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[QTYPE_QSTRING] = qstring_is_equal,
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[QTYPE_QDICT] = qdict_is_equal,
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[QTYPE_QLIST] = qlist_is_equal,
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[QTYPE_QBOOL] = qbool_is_equal,
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};
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bool qobject_is_equal(const QObject *x, const QObject *y)
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{
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/* We cannot test x == y because an object does not need to be
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* equal to itself (e.g. NaN floats are not). */
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if (!x && !y) {
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return true;
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}
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if (!x || !y || x->type != y->type) {
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return false;
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}
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assert(QTYPE_NONE < x->type && x->type < QTYPE__MAX);
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return qis_equal[x->type](x, y);
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}
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