DokanFileInfo.cs

using System;
using System.Runtime.InteropServices;
using System.Security.Principal;
using DokanNet.Native;

#pragma warning disable 649,169
namespace DokanNet
{
    [StructLayout(LayoutKind.Sequential, Pack = 4)]
    public sealed class DokanFileInfo
    {

        private ulong _context;
        private readonly ulong _dokanContext;
        private readonly IntPtr _dokanOptions;
        private readonly uint _processId;
        [MarshalAs(UnmanagedType.U1)] private bool _isDirectory;
        [MarshalAs(UnmanagedType.U1)] private bool _deleteOnClose;
        [MarshalAs(UnmanagedType.U1)] private bool _pagingIo;
        [MarshalAs(UnmanagedType.U1)] private bool _synchronousIo;
        [MarshalAs(UnmanagedType.U1)] private bool _nocache;
        [MarshalAs(UnmanagedType.U1)] private bool _writeToEndOfFile;


        public object Context
        {
            get { return _context != 0 ? ((GCHandle) ((IntPtr) _context)).Target : null; }
            set
            {
                if (_context != 0)
                {
                    ((GCHandle) ((IntPtr) _context)).Free();
                    _context = 0;
                }
                if (value != null)
                {
                    _context = (ulong) (IntPtr) GCHandle.Alloc(value);
                }
            }
        }

 

        public int ProcessId
        {
            get { return (int) _processId; }
        }

        public bool IsDirectory
        {
            get { return _isDirectory; }
            set { _isDirectory = value; }
        }

        public bool DeleteOnClose
        {
            get { return _deleteOnClose; }
            set { _deleteOnClose = value; }
        }

        public bool PagingIo
        {
            get { return _pagingIo; }
        }

        public bool SynchronousIo
        {
            get { return _synchronousIo; }
        }

        public bool NoCache
        {
            get { return _nocache; }
        }

        public bool WriteToEndOfFile
        {
            get { return _writeToEndOfFile; }
        }

        public WindowsIdentity GetRequestor()
        {
            try
            {
                return new WindowsIdentity(NativeMethods.DokanOpenRequestorToken(this));
            }
            catch 
            {

                return null;
            }
          
        }

        public bool TryResetTimeout(int milliseconds)
        {

            return NativeMethods.DokanResetTimeout((uint) milliseconds, this);
        }

       
        private DokanFileInfo(){}
    }
}
#pragma warning restore 649,169