bthns_setblob.cs

蓝牙传输控件,用于蓝牙文件上传和下载。芯片只要选用crs

using System;
using bluetoothX;
using System.Runtime.InteropServices;

namespace bluetoothX
{
	internal class BTHNS_SETBLOB : BTHNS_BLOB
	{

		private const int BTH_SDP_VERSION = 1;

		private GCHandle pVersionHandle;
		private GCHandle pRecordHandle;

		public BTHNS_SETBLOB(byte[] record)
		{
			//create data buffer
			m_data = new byte[36 + record.Length];
			pVersionHandle = GCHandle.Alloc(BTH_SDP_VERSION, GCHandleType.Pinned);
			pRecordHandle = GCHandle.Alloc((int)0, GCHandleType.Pinned);
			IntPtr vaddr = pVersionHandle.AddrOfPinnedObject();
			IntPtr haddr = pRecordHandle.AddrOfPinnedObject();
			BitConverter.GetBytes((int)vaddr).CopyTo(m_data, 0);
			BitConverter.GetBytes((int)haddr).CopyTo(m_data, 4);
			BitConverter.GetBytes(record.Length).CopyTo(m_data, 32);

			//copy sdp record
			Buffer.BlockCopy(record, 0, m_data, 36, record.Length);
		}

		public int Handle
		{
			get
			{
				IntPtr pHandle = (IntPtr)BitConverter.ToInt32(m_data, 4);
				return Marshal.ReadInt32(pHandle);
				//return m_handle;	
			}
			set
			{
				IntPtr pHandle = (IntPtr)BitConverter.ToInt32(m_data, 4);
				Marshal.WriteInt32(pHandle, value);
			}
		}

        public uint CodService
        {
            get
            {
                return BitConverter.ToUInt32(m_data, 8);
            }
            set
            {
                BitConverter.GetBytes(value).CopyTo(m_data, 8);
            }
        }

		#region IDisposable Members

		protected override void Dispose(bool disposing)
		{
			try
			{
				if(pVersionHandle.IsAllocated)
				{
					pVersionHandle.Free();
				}

				if(pRecordHandle.IsAllocated)
				{
					pRecordHandle.Free();
				}

			}
			finally
			{
				base.Dispose(disposing);
			}
		}
		#endregion
	}
}