webengine/osswebengine/WebCore/platform/StaticConstructors.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Thu, 27 Aug 2009 07:44:59 +0300
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/*
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 * This file is part of the DOM implementation for KDE.
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 *
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 * Copyright (C) 2006 Apple Computer, Inc.
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Library General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Library General Public License for more details.
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 *
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 * You should have received a copy of the GNU Library General Public License
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 * along with this library; see the file COPYING.LIB.  If not, write to
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 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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 * Boston, MA 02110-1301, USA.
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 *
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 */
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// For WebCore we need to avoid having static constructors.
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// Our strategy is to declare the global objects with a different type (initialized to 0)
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// and then use placement new to initialize the global objects later. This is not completely
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// portable, and it would be good to figure out a 100% clean way that still avoids code that
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// runs at init time.
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#ifndef AVOID_STATIC_CONSTRUCTORS
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    // Define an global in the normal way.
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#if PLATFORM(SYMBIAN)
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#define DEFINE_GLOBAL(type, name, args...) \
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    const type name;
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#else
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#define DEFINE_GLOBAL(type, name, ...) \
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    const type name;
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#endif
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#else
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// Define an correctly-sized array of pointers to avoid static initialization.
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// Use an array of pointers instead of an array of char in case there is some alignment issue.
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#define DEFINE_GLOBAL(type, name, args...) \
0
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    void * name[(sizeof(type) + sizeof(void *) - 1) / sizeof(void *)];
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#endif