// ISDNLine: Dialogic ISDN line devices
// $Id: ISDNLine.java,v 1.4 2003/11/13 11:46:17 cgm8 Exp $
/* 
 * Copyright (c) 1999-2003 Carlos G Mendioroz.
 *
 *  This file is part of D4J.
 *
 *  D4J is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2 of the License, or (at your option) any later version.
 *  
 *  D4J 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
 *  Lesser General Public License for more details.
 *  
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the
 *  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 *  Boston, MA  02111-1307, USA.
 *
 * Report problems and direct all questions to:
 *
 *	tron@acm.org
 */
package local.dialogic;

public class ISDNLine extends Device
{

    // Class variables

    // Instance variables
    int ts;

    /** Open a dt device */
    public ISDNLine(Channel ch, String devname)
    {
        super(ch, devname);
        // dtiBnTm
        this.name = devname;
        
        Runnable r = new Runnable() {
          public void run() {
            device = Dialogic.cc_Open(name, 0);
            register();
          }
        };
        
        Channel.atomicAction(r);
        
        EVT.setISDN(device); // Let EVT know this is an ISDN device
        ts = Dialogic.dt_getxmitslot(device);
    }

    public void finalize() throws Throwable
    {
        close();
        super.finalize();
    }

    public void close()
    {
        if (device != 0) {
            Dialogic.cc_Close(device);
            super.close();
            EVT.resetISDN(device);
            device = 0;     // just in case
        }
    }

    public int getTs() {
        return ts;
    }

    public void listen(Device source) {
        if (source != null)
            Dialogic.dt_listen(device, source.getTs());
        else
            Dialogic.dt_unlisten(device);
    }

    public void listen(Channel ch, Resource res) {
        int ts = res.getTs(ch);
        if (ts < 0)
            Dialogic.dt_unlisten(device);
        else
            Dialogic.dt_listen(device, ts);
    }

    public void waitCall() {
        Dialogic.cc_WaitCall(device, null, 0, Dialogic.EV_ASYNC);
    }

    /** 
     * Restart: bring firmware to state 0, any call to null state
     */
    public void restart() {
        if ((Dialogic.debug & Dialogic.DEBUG_ISDN) != 0)
            System.out.println(new java.util.Date().toString().substring(11,19) +": Restart " + this);
        Dialogic.cc_Restart(device, Dialogic.EV_ASYNC);
    }
    
    public long dial(String num, int timeout){
        if ((Dialogic.debug & Dialogic.DEBUG_ISDN) != 0)
            System.out.println(new java.util.Date().toString().substring(11,19) +": " + this + " calling " + num);
        return Dialogic.cc_MakeCall(device, num, null, timeout, Dialogic.EV_ASYNC);
    }
}