/*
 * Copyright (C) 2010 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "WebProcessManager.h"

namespace WebKit {

WebProcessManager& WebProcessManager::shared()
{
    static WebProcessManager& manager = *new WebProcessManager;
    return manager;
}

WebProcessManager::WebProcessManager()
{
}

WebProcessProxy* WebProcessManager::getWebProcess(ProcessModel processModel)
{
    switch (processModel) {
        case ProcessModelSecondaryProcess:
            if (!m_sharedProcess)
                m_sharedProcess = WebProcessProxy::create(processModel);
            
            return m_sharedProcess.get();

        case ProcessModelSecondaryThread:
            if (!m_sharedThread)
                m_sharedThread = WebProcessProxy::create(processModel);
            
            return m_sharedThread.get();
    }

    
    ASSERT_NOT_REACHED();
    return 0;
}
    
void WebProcessManager::processDidClose(WebProcessProxy* process)
{
    if (process == m_sharedProcess) {
        m_sharedProcess = 0;
        return;
    }
    
    // The shared thread connection should never be closed.
    ASSERT_NOT_REACHED();
}

} // namespace WebKit