JavaScriptCore/wtf/ThreadSpecificWin.cpp

/*
 * Copyright (C) 2009 Jian Li <jianli@chromium.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 */

#include "config.h"

#include "ThreadSpecific.h"
#include <wtf/Noncopyable.h>

#if USE(PTHREADS)
#error This file should not be compiled by ports that do not use Windows native ThreadSpecific implementation.
#endif

namespace WTF {

long& tlsKeyCount()
{
    static long count;
    return count;
}

DWORD* tlsKeys()
{
    static DWORD keys[kMaxTlsKeySize];
    return keys;
}

void ThreadSpecificThreadExit()
{
    for (long i = 0; i < tlsKeyCount(); i++) {
        // The layout of ThreadSpecific<T>::Data does not depend on T. So we are safe to do the static cast to ThreadSpecific<int> in order to access its data member.
        ThreadSpecific<int>::Data* data = static_cast<ThreadSpecific<int>::Data*>(TlsGetValue(tlsKeys()[i]));
        if (data)
            data->destructor(data);
    }
}

} // namespace WTF