mirror of https://gitee.com/openkylin/qemu.git
72 lines
2.0 KiB
C
72 lines
2.0 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 "qapi/qmp/qbool.h"
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#include "qapi/qmp/qnull.h"
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#include "qapi/qmp/qnum.h"
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#include "qapi/qmp/qdict.h"
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#include "qapi/qmp/qlist.h"
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#include "qapi/qmp/qstring.h"
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QEMU_BUILD_BUG_MSG(
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offsetof(QNull, base) != 0 ||
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offsetof(QNum, base) != 0 ||
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offsetof(QString, base) != 0 ||
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offsetof(QDict, base) != 0 ||
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offsetof(QList, base) != 0 ||
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offsetof(QBool, base) != 0,
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"base qobject must be at offset 0");
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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->base.refcnt);
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assert(QTYPE_QNULL < obj->base.type && obj->base.type < QTYPE__MAX);
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qdestroy[obj->base.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->base.type != y->base.type) {
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return false;
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}
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assert(QTYPE_NONE < x->base.type && x->base.type < QTYPE__MAX);
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return qis_equal[x->base.type](x, y);
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}
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