//---------------------------------------   
// <copyright file="RILHelper.cs" company="Yaping Xin">   
//     Copyright (c) Yaping Xin. All rights reserved.   
// </copyright>   
// <Description>Helper class for Radio Interface Layer.</Description>   
//---------------------------------------   
namespace MobileAutomation.Projects.VDFStressTesting   
{   
    using System;   
    using System.Runtime.InteropServices;   
    using System.Threading;   
   
    /// <summary>   
    /// Helper class for Radio Interface Layer.   
    /// </summary>   
    public class RILHelper   
    {   
       /// <summary>   
       /// Delegation definition of Log event handler   
       /// </summary>   
       /// <param name="message">Message to transfer</param>   
       public delegate void LogHandler(string message);   
   
       /// <summary>Event handler to record log</summary>   
       public static event LogHandler Log;   
   
       /// <summary>AutoResetEvent object</summary>   
       private static AutoResetEvent waithandle = new AutoResetEvent(false);   
          
       /// <summary>HRESULT to RIL object</summary>   
       private static IntPtr hRil = IntPtr.Zero;   
   
       /// <summary>HRESULT to result</summary>   
       private static IntPtr hRes = IntPtr.Zero;   
          
       /// <summary>   
       /// RILRESULTCALLBACK delegation   
       /// http://msdn.microsoft.com/en-us/library/aa920069.aspx   
       /// </summary>   
       /// <param name="dwCode">Specifies the result code.</param>   
       /// <param name="hrCmdID">ID returned by the command that originated this response.</param>   
       /// <param name="lpData">Data associated with the notification.</param>   
       /// <param name="cbData">Size of the structure pointed to by lpData.</param>   
       /// <param name="dwParam">Specifies the parameter passed to RIL_Initialize  or RIL_InitializeEmergency.</param>   
       public delegate void RILRESULTCALLBACK(   
           uint dwCode,   
           IntPtr hrCmdID,   
           IntPtr lpData,   
           uint cbData,   
           uint dwParam);   
   
       /// <summary>   
       /// RILNOTIFYCALLBACK delegation   
       /// http://msdn.microsoft.com/en-us/library/aa922465.aspx   
       /// </summary>   
       /// <param name="dwCode">Specifies the