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morphos_timer.h

/* ScummVM - Scumm Interpreter
 * Copyright (C) 2002-2006 The ScummVM Team
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL: https://svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-0-9-1/backends/morphos/morphos_timer.h $
 * $Id: morphos_timer.h 20535 2006-02-11 12:47:47Z fingolfin $
 */

#ifndef MORPHOS_TIMER_H
#define MORPHOS_TIMER_H

#ifndef TIMER_H
#include "timer.h"      // for MAX_TIMER
#endif

#ifndef EXEC_PORTS_H
#include <exec/ports.h>
#endif

#ifndef EXEC_IO_H
#include <exec/io.h>
#endif

#ifndef EXEC_SEMAPHORES_H
#include <exec/semaphores.h>
#endif

#ifndef DOS_DOSEXTENS_H
#include <dos/dosextens.h>
#endif

class OSystem;

#define TSM_MSGID_ADDTIMER      0
#define TSM_MSGID_REMTIMER   1

struct TimerServiceMessage
{
      Message tsm_Message;
      ULONG tsm_MsgID;
      TimerProc tsm_Callback;
      LONG tsm_Interval;
};

class Timer
{
      public:
            Timer(Engine * engine);
         ~Timer();

            bool init();
            void release();
            bool installTimerProc(TimerProc procedure, int32 interval);
            void removeTimerProc(TimerProc procedure);

      protected:
            bool SendMsg(ULONG MsgID, TimerProc procedure, LONG interval);
            static void TimerService(Timer *, Engine *);

            Process *TimerServiceThread;
            MsgPort *TimerServicePort;
            Message TimerServiceStartup;

            struct TimerSlot
            {
                  MsgPort *ts_Port;
                  timerequest *ts_IORequest;
                  ULONG ts_SignalBit;
                  TimerProc ts_Callback;
                  LONG ts_Interval;
            };
};

#endif


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