/*
 * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.sun.max.tele.debug.darwin;

import com.sun.max.tele.*;
import com.sun.max.tele.debug.*;
import com.sun.max.tele.util.*;
import com.sun.max.unsafe.*;

/**
 */
public class DarwinTeleNativeThread extends TeleNativeThread {

    private DarwinTeleChannelProtocol protocol;

    public DarwinTeleNativeThread(DarwinTeleProcess teleProcess, Params params) {
        super(teleProcess, params);
        protocol = (DarwinTeleChannelProtocol) TeleVM.teleChannelProtocol();
    }

    @Override
    public DarwinTeleProcess teleProcess() {
        return (DarwinTeleProcess) super.teleProcess();
    }

    @Override
    public boolean updateInstructionPointer(Address address) {
        return protocol.setInstructionPointer(machThread(), address.toLong());
    }

    private long machThread() {
        return localHandle();
    }

    @Override
    protected boolean readRegisters(
                    byte[] integerRegisters,
                    byte[] floatingPointRegisters,
                    byte[] stateRegisters) {
        return protocol.readRegisters(machThread(),
                        integerRegisters, integerRegisters.length,
                        floatingPointRegisters, floatingPointRegisters.length,
                        stateRegisters, stateRegisters.length);
    }

    @Override
    protected boolean singleStep() {
        return protocol.singleStep(machThread());
    }

    @Override
    protected boolean threadResume() {
        throw TeleError.unimplemented();
    }

    @Override
    public boolean threadSuspend() {
        throw TeleError.unimplemented();
    }

}