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/*
 * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
 * Copyright (C) 2009 Company 100, Inc.
 *
 * 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
 * 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 "config.h"
#include "SharedTimer.h"

#include <AEEAppGen.h>
#include <AEEStdLib.h>

#include <wtf/CurrentTime.h>

namespace WebCore {

static void (*sharedTimerFiredFunction)();

static AEECallback sharedTimerCallback;

static void invokeCallback(void*)
{
    sharedTimerFiredFunction();
}

void setSharedTimerFiredFunction(void (*f)())
{
    sharedTimerFiredFunction = f;
}

void setSharedTimerFireTime(double fireTime)
{
    ASSERT(sharedTimerFiredFunction);

    CALLBACK_Cancel(&sharedTimerCallback);

    double interval = fireTime - currentTime();
    int intervalInMS;

    if (interval < 0)
        intervalInMS = 0;
    else {
        interval *= 1000;
        intervalInMS = static_cast<int>(interval);
    }

    sharedTimerCallback.pfnCancel = 0;
    sharedTimerCallback.pfnNotify = invokeCallback;
    sharedTimerCallback.pNotifyData = 0;

    IShell* shell = reinterpret_cast<AEEApplet*>(GETAPPINSTANCE())->m_pIShell;
    ISHELL_SetTimerEx(shell, intervalInMS, &sharedTimerCallback);
}

void stopSharedTimer()
{
    CALLBACK_Cancel(&sharedTimerCallback);
}

}