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f4b3c5d0bd
By moving the base fields to a QObjectBase_, QObject can be a type which also has a 'base' field. This allows writing a generic QOBJECT() macro that will work with any QObject type, including QObject itself. The container_of() macro ensures that the object to cast has a QObjectBase_ base field, giving some type safety guarantees. QObject must have no members but QObjectBase_ base, or else QOBJECT() breaks. QObjectBase_ is not a typedef and uses a trailing underscore to make it obvious it is not for normal use and to avoid potential abuse. Backports commit 3d3eacaeccaab718ea0e2ddaa578bfae9e311c59 from qemu
31 lines
607 B
C
31 lines
607 B
C
/*
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* QBool Module
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*
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* Copyright IBM, Corp. 2009
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*
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* Authors:
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* Anthony Liguori <aliguori@us.ibm.com>
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*
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* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
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* See the COPYING.LIB file in the top-level directory.
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*
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*/
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#ifndef QBOOL_H
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#define QBOOL_H
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#include "unicorn/platform.h"
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#include "qapi/qmp/qobject.h"
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struct QBool {
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struct QObjectBase_ base;
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bool value;
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};
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QBool *qbool_from_bool(bool value);
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bool qbool_get_bool(const QBool *qb);
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bool qbool_is_equal(const QObject *x, const QObject *y);
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void qbool_destroy_obj(QObject *obj);
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#endif /* QBOOL_H */
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