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Using OpenTK/OpenAL to Develop Cross Platform DIS VOIP Application

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4.79/5 (8 votes)
15 Mar 2010BSD10 min read 44.8K   1.7K   24  
Application allows voice communications (VOIP) utilizing the Distributed Interactive Simulation protocol (IEEE 1278.1)
// Copyright (c) 1995-2009 held by the author(s).  All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
//  are met:
// 
//  * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * 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.
// * Neither the names of the Naval Postgraduate School (NPS)
//  Modeling Virtual Environments and Simulation (MOVES) Institute
// (http://www.nps.edu and http://www.MovesInstitute.org)
// nor the names of its contributors may be used to endorse or
//  promote products derived from this software without specific
// prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// 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 THE
// COPYRIGHT OWNER 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.

using System;
using System.Collections.Generic;
using System.Text;
using System.Diagnostics;
using System.Xml.Serialization;
using DISnet.DataStreamUtilities;

namespace DIS1998net
{

    /**
     * Section 5.3.9.3 Information initiating the dyanic allocation and control of simulation entities         between two simulation applications. Requires manual cleanup. The padding between record sets is variable. UNFINISHED
     *
     * Copyright (c) 2008, MOVES Institute, Naval Postgraduate School. All rights reserved.
     * This work is licensed under the BSD open source license, available at https://www.movesinstitute.org/licenses/bsd.html
     *
     * @author DMcG
     * Modified for use with C#:
     * Peter Smith (Naval Air Warfare Center - Training Systems Division)
     */
    [Serializable]
    [XmlRoot]
    [XmlInclude(typeof(EntityID))]
    [XmlInclude(typeof(RecordSet))]
    public partial class TransferControlRequestPdu : EntityManagementFamilyPdu
    {
        /** ID of entity originating request */
        protected EntityID  _orginatingEntityID = new EntityID(); 

        /** ID of entity receiving request */
        protected EntityID  _recevingEntityID = new EntityID(); 

        /** ID ofrequest */
        protected uint  _requestID;

        /** required level of reliabliity service. */
        protected byte  _requiredReliabilityService;

        /** type of transfer desired */
        protected byte  _tranferType;

        /** The entity for which control is being requested to transfer */
        protected EntityID  _transferEntityID = new EntityID(); 

        /** number of record sets to transfer */
        protected byte  _numberOfRecordSets;

        /** ^^^This is wrong--the RecordSet class needs more work */
        protected List<RecordSet> _recordSets = new List<RecordSet>(); 

        /** Constructor */
        ///<summary>
        ///Section 5.3.9.3 Information initiating the dyanic allocation and control of simulation entities         between two simulation applications. Requires manual cleanup. The padding between record sets is variable. UNFINISHED
        ///</summary>
        public TransferControlRequestPdu()
        {
            PduType = (byte)35;
        }

        new public int getMarshalledSize()
        {
            int marshalSize = 0; 

            marshalSize = base.getMarshalledSize();
            marshalSize = marshalSize + _orginatingEntityID.getMarshalledSize();  // _orginatingEntityID
            marshalSize = marshalSize + _recevingEntityID.getMarshalledSize();  // _recevingEntityID
            marshalSize = marshalSize + 4;  // _requestID
            marshalSize = marshalSize + 1;  // _requiredReliabilityService
            marshalSize = marshalSize + 1;  // _tranferType
            marshalSize = marshalSize + _transferEntityID.getMarshalledSize();  // _transferEntityID
            marshalSize = marshalSize + 1;  // _numberOfRecordSets
            for(int idx=0; idx < _recordSets.Count; idx++)
            {
                RecordSet listElement = (RecordSet)_recordSets[idx];
                marshalSize = marshalSize + listElement.getMarshalledSize();
            }

            return marshalSize;
        }


        ///<summary>
        ///ID of entity originating request
        ///</summary>
        public void setOrginatingEntityID(EntityID pOrginatingEntityID)
        { 
            _orginatingEntityID = pOrginatingEntityID;
        }

        ///<summary>
        ///ID of entity originating request
        ///</summary>
        public EntityID getOrginatingEntityID()
        {
            return _orginatingEntityID;
        }

        ///<summary>
        ///ID of entity originating request
        ///</summary>
        [XmlElement(Type= typeof(EntityID), ElementName="orginatingEntityID")]
        public EntityID OrginatingEntityID
        {
            get
            {
                return _orginatingEntityID;
            }
            set
            {
                _orginatingEntityID = value;
            }
        }

        ///<summary>
        ///ID of entity receiving request
        ///</summary>
        public void setRecevingEntityID(EntityID pRecevingEntityID)
        { 
            _recevingEntityID = pRecevingEntityID;
        }

        ///<summary>
        ///ID of entity receiving request
        ///</summary>
        public EntityID getRecevingEntityID()
        {
            return _recevingEntityID;
        }

        ///<summary>
        ///ID of entity receiving request
        ///</summary>
        [XmlElement(Type= typeof(EntityID), ElementName="recevingEntityID")]
        public EntityID RecevingEntityID
        {
            get
            {
                return _recevingEntityID;
            }
            set
            {
                _recevingEntityID = value;
            }
        }

        ///<summary>
        ///ID ofrequest
        ///</summary>
        public void setRequestID(uint pRequestID)
        { 
            _requestID = pRequestID;
        }

        [XmlElement(Type= typeof(uint), ElementName="requestID")]
        public uint RequestID
        {
            get
            {
                return _requestID;
            }
            set
            {
                _requestID = value;
            }
        }

        ///<summary>
        ///required level of reliabliity service.
        ///</summary>
        public void setRequiredReliabilityService(byte pRequiredReliabilityService)
        { 
            _requiredReliabilityService = pRequiredReliabilityService;
        }

        [XmlElement(Type= typeof(byte), ElementName="requiredReliabilityService")]
        public byte RequiredReliabilityService
        {
            get
            {
                return _requiredReliabilityService;
            }
            set
            {
                _requiredReliabilityService = value;
            }
        }

        ///<summary>
        ///type of transfer desired
        ///</summary>
        public void setTranferType(byte pTranferType)
        { 
            _tranferType = pTranferType;
        }

        [XmlElement(Type= typeof(byte), ElementName="tranferType")]
        public byte TranferType
        {
            get
            {
                return _tranferType;
            }
            set
            {
                _tranferType = value;
            }
        }

        ///<summary>
        ///The entity for which control is being requested to transfer
        ///</summary>
        public void setTransferEntityID(EntityID pTransferEntityID)
        { 
            _transferEntityID = pTransferEntityID;
        }

        ///<summary>
        ///The entity for which control is being requested to transfer
        ///</summary>
        public EntityID getTransferEntityID()
        {
            return _transferEntityID;
        }

        ///<summary>
        ///The entity for which control is being requested to transfer
        ///</summary>
        [XmlElement(Type= typeof(EntityID), ElementName="transferEntityID")]
        public EntityID TransferEntityID
        {
            get
            {
                return _transferEntityID;
            }
            set
            {
                _transferEntityID = value;
            }
        }

        /// <summary>
        /// Note that setting this value will not change the marshalled value. The list whose length this describes is used for that purpose.
        /// The getnumberOfRecordSets method will also be based on the actual list length rather than this value. 
        /// The method is simply here for completeness and should not be used for any computations.
        /// </summary>
        public void setNumberOfRecordSets(byte pNumberOfRecordSets)
        {
            _numberOfRecordSets = pNumberOfRecordSets;
        }

        /// <summary>
        /// Note that setting this value will not change the marshalled value. The list whose length this describes is used for that purpose.
        /// The getnumberOfRecordSets method will also be based on the actual list length rather than this value. 
        /// The method is simply here for completeness and should not be used for any computations.
        /// </summary>
        [XmlElement(Type= typeof(byte), ElementName="numberOfRecordSets")]
        public byte NumberOfRecordSets
        {
            get
            {
                return _numberOfRecordSets;
            }
            set
            {
                _numberOfRecordSets = value;
            }
        }

        ///<summary>
        ///^^^This is wrong--the RecordSet class needs more work
        ///</summary>
        public void setRecordSets(List<RecordSet> pRecordSets)
        {
            _recordSets = pRecordSets;
        }

        ///<summary>
        ///^^^This is wrong--the RecordSet class needs more work
        ///</summary>
        public List<RecordSet> getRecordSets()
        {
            return _recordSets;
        }

        ///<summary>
        ///^^^This is wrong--the RecordSet class needs more work
        ///</summary>
        [XmlElement(ElementName = "recordSetsList",Type = typeof(List<RecordSet>))]
        public List<RecordSet> RecordSets
        {
            get
            {
                return _recordSets;
            }
            set
            {
                _recordSets = value;
            }
        }

        ///<summary>
        ///Automatically sets the length of the marshalled data, then calls the marshal method.
        ///</summary>
        new public void marshalAutoLengthSet(DataOutputStream dos)
        {
            //Set the length prior to marshalling data
            this.setLength((ushort)this.getMarshalledSize());
            this.marshal(dos);
        }

        ///<summary>
        ///Marshal the data to the DataOutputStream.  Note: Length needs to be set before calling this method
        ///</summary>
        new public void marshal(DataOutputStream dos)
        {
            base.marshal(dos);
            try
            {
                _orginatingEntityID.marshal(dos);
                _recevingEntityID.marshal(dos);
                dos.writeUint((uint)_requestID);
                dos.writeByte((byte)_requiredReliabilityService);
                dos.writeByte((byte)_tranferType);
                _transferEntityID.marshal(dos);
                dos.writeByte((byte)_recordSets.Count);

                for(int idx = 0; idx < _recordSets.Count; idx++)
                {
                    RecordSet aRecordSet = (RecordSet)_recordSets[idx];
                    aRecordSet.marshal(dos);
                } // end of list marshalling

            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of marshal method

        new public void unmarshal(DataInputStream dis)
        {
            base.unmarshal(dis);

            try
            {
                _orginatingEntityID.unmarshal(dis);
                _recevingEntityID.unmarshal(dis);
                _requestID = dis.readUint();
                _requiredReliabilityService = dis.readByte();
                _tranferType = dis.readByte();
                _transferEntityID.unmarshal(dis);
                _numberOfRecordSets = dis.readByte();
                for(int idx = 0; idx < _numberOfRecordSets; idx++)
                {
                    RecordSet anX = new RecordSet();
                    anX.unmarshal(dis);
                    _recordSets.Add(anX);
                };

            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of unmarshal method

        ///<summary>
        ///This allows for a quick display of PDU data.  The current format is unacceptable and only used for debugging.
        ///This will be modified in the future to provide a better display.  Usage: 
        ///pdu.GetType().InvokeMember("reflection", System.Reflection.BindingFlags.InvokeMethod, null, pdu, new object[] { sb });
        ///where pdu is an object representing a single pdu and sb is a StringBuilder.
        ///Note: The supplied Utilities folder contains a method called 'DecodePDU' in the PDUProcessor Class that provides this functionality
        ///</summary>
        new public void reflection(StringBuilder sb)
        {
            sb.Append("<TransferControlRequestPdu>"  + System.Environment.NewLine);
            base.reflection(sb);
            try
            {
                sb.Append("<orginatingEntityID>"  + System.Environment.NewLine);
                _orginatingEntityID.reflection(sb);
                sb.Append("</orginatingEntityID>"  + System.Environment.NewLine);
                sb.Append("<recevingEntityID>"  + System.Environment.NewLine);
                _recevingEntityID.reflection(sb);
                sb.Append("</recevingEntityID>"  + System.Environment.NewLine);
                sb.Append("<requestID type=\"uint\">" + _requestID.ToString() + "</requestID> " + System.Environment.NewLine);
                sb.Append("<requiredReliabilityService type=\"byte\">" + _requiredReliabilityService.ToString() + "</requiredReliabilityService> " + System.Environment.NewLine);
                sb.Append("<tranferType type=\"byte\">" + _tranferType.ToString() + "</tranferType> " + System.Environment.NewLine);
                sb.Append("<transferEntityID>"  + System.Environment.NewLine);
                _transferEntityID.reflection(sb);
                sb.Append("</transferEntityID>"  + System.Environment.NewLine);
                sb.Append("<recordSets type=\"byte\">" + _recordSets.Count.ToString() + "</recordSets> " + System.Environment.NewLine);

            for(int idx = 0; idx < _recordSets.Count; idx++)
            {
                sb.Append("<recordSets"+ idx.ToString() + " type=\"RecordSet\">" + System.Environment.NewLine);
                RecordSet aRecordSet = (RecordSet)_recordSets[idx];
                aRecordSet.reflection(sb);
                sb.Append("</recordSets"+ idx.ToString() + ">" + System.Environment.NewLine);
            } // end of list marshalling

                sb.Append("</TransferControlRequestPdu>"  + System.Environment.NewLine);
            } // end try
            catch(Exception e)
            {
                Trace.WriteLine(e);
                Trace.Flush();
            }
        } // end of reflection method

        public static bool operator !=(TransferControlRequestPdu a, TransferControlRequestPdu b)
        {
            return !(a == b);
        }

        public static bool operator ==(TransferControlRequestPdu a, TransferControlRequestPdu b)
        {
            if (System.Object.ReferenceEquals(a, b))
            {
                return true;
            }

            if (((object)a == null) || ((object)b == null))
            {
                return false;
            }

            return a.equals(b);
        }


        public override bool Equals(object obj)
        {
            return this == obj as TransferControlRequestPdu;
        }


        /**
         * Compares for reference equality and value equality.
         */
        public bool equals(TransferControlRequestPdu rhs)
        {
            bool ivarsEqual = true;

            if(rhs.GetType() != this.GetType())
                return false;

            ivarsEqual = base.Equals(rhs);

            if( ! (_orginatingEntityID.Equals( rhs._orginatingEntityID) )) ivarsEqual = false;
            if( ! (_recevingEntityID.Equals( rhs._recevingEntityID) )) ivarsEqual = false;
            if( ! (_requestID == rhs._requestID)) ivarsEqual = false;
            if( ! (_requiredReliabilityService == rhs._requiredReliabilityService)) ivarsEqual = false;
            if( ! (_tranferType == rhs._tranferType)) ivarsEqual = false;
            if( ! (_transferEntityID.Equals( rhs._transferEntityID) )) ivarsEqual = false;
            if( ! (_numberOfRecordSets == rhs._numberOfRecordSets)) ivarsEqual = false;

            if( ! (_recordSets.Count == rhs._recordSets.Count)) ivarsEqual = false;
            if(ivarsEqual)
            {
                for(int idx = 0; idx < _recordSets.Count; idx++)
                {
                    if( ! ( _recordSets[idx].Equals(rhs._recordSets[idx]))) ivarsEqual = false;
                }
            }


            return ivarsEqual;
        }

        /**
         * HashCode Helper
         */
        private int GenerateHash(int hash)
        {
            hash = hash << 5 + hash;
            return(hash);
        }


        /**
         * Return Hash
         */
        public override int GetHashCode()
        {
            int result = 0;

            result = GenerateHash(result) ^ base.GetHashCode();

            result = GenerateHash(result) ^ _orginatingEntityID.GetHashCode();
            result = GenerateHash(result) ^ _recevingEntityID.GetHashCode();
            result = GenerateHash(result) ^ _requestID.GetHashCode();
            result = GenerateHash(result) ^ _requiredReliabilityService.GetHashCode();
            result = GenerateHash(result) ^ _tranferType.GetHashCode();
            result = GenerateHash(result) ^ _transferEntityID.GetHashCode();
            result = GenerateHash(result) ^ _numberOfRecordSets.GetHashCode();

            if(_recordSets.Count > 0)
            {
                for(int idx = 0; idx < _recordSets.Count; idx++)
                {
                    result = GenerateHash(result) ^ _recordSets[idx].GetHashCode();
                }
            }


            return result;
        }
    } // end of class
} // end of namespace

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This article, along with any associated source code and files, is licensed under The BSD License


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