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bell.cpp

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// $Id$

//**********************************************************************
//                                                                     *
//    Description:   'Bell Master' abstract interface for block        *
//                   instrument bell.                                  *
//                                                                     *
//    Author:        Chris White (whitecf@bcs.org.uk)                  *
//                                                                     *
//    Copyright (C) 2003  Monitor Computing Services Ltd.              *
//                                                                     *
//    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 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 (http://www.gnu.org/copyleft/gpl.html) along with this   *
//    program; if not, write to:                                       *
//       The Free Software Foundation Inc.,                            *
//       59 Temple Place - Suite 330,                                  *
//       Boston, MA  02111-1307,                                       *
//       USA.                                                          *
//                                                                     *
//**********************************************************************
//                                                                     *
//    Notes:                                                           *
//                                                                     *
//**********************************************************************

#include <mytrace.h>

#include "bell.h"



using namespace Monitor::BellMaster;
namespace Ut = Monitor::Utility;



Bell::Bell() :
    Ut::Watchable()
{
    _USEMYTRACE_("Bell::Bell()")
}



Bell::~Bell()
{
    _USEMYTRACE_("Bell::~Bell()")
}



const Ut::CallbackBase&
Bell::addListener(const Ut::CallbackBase&    newWatch) const
{
    _USEMYTRACE_("Bell::addListener(newWatch)")


    return addWatch(newWatch);
}



void
Bell::removeListener(const void*    listener) const
{
    _USEMYTRACE_("Bell::removeListener(listener)")


    removeWatcher(listener);
}



void
Bell::ring() const
throw (Bell::Busy)
{
    _USEMYTRACE_("Bell::ring()")


    updated();
}

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