public unsafe MFT_FILE_INFO[] read(DriveInfo driveInfo)
{
TimeSpan utcOffset = System.TimeZoneInfo.Local.BaseUtcOffset;
var baseticks = (ulong)(new DateTime(1601, 01, 01).Ticks + utcOffset.Ticks);
string pathRoot = string.Concat(@"\\.\", driveInfo.Name.Substring(0, 2));
var hVolume = Win32API.CreateFile(
pathRoot,
Win32API.GENERIC_READ | Win32API.GENERIC_WRITE,
Win32API.FILE_SHARE_READ | Win32API.FILE_SHARE_WRITE,
IntPtr.Zero,
Win32API.OPEN_EXISTING,
0,
IntPtr.Zero);
if (hVolume.ToInt32() == Win32API.INVALID_HANDLE_VALUE)
{
Win32API.CloseHandle(hVolume);
//Marshal.GetLastWin32Error
return(new MFT_FILE_INFO[1]);
}
Win32API.NTFS_VOLUME_DATA_BUFFER ntfsVolData = new Win32API.NTFS_VOLUME_DATA_BUFFER();
int ntfsVolDataSize = Marshal.SizeOf(ntfsVolData);
IntPtr volBuffer = Marshal.AllocHGlobal(ntfsVolDataSize);
//Win32API.ZeroMemory(volBuffer, ntfsVolDataSize);
//Marshal.StructureToPtr(ntfsVolData, volBuffer, true);
uint lpBytesReturned = 0;
var ret = Win32API.DeviceIoControl(
hVolume,
Win32API.FSCTL_GET_NTFS_VOLUME_DATA,
IntPtr.Zero,
0,
volBuffer,
ntfsVolDataSize,
out lpBytesReturned,
IntPtr.Zero);
ntfsVolData = (Win32API.NTFS_VOLUME_DATA_BUFFER)Marshal.PtrToStructure(volBuffer, typeof(Win32API.NTFS_VOLUME_DATA_BUFFER));
Marshal.FreeHGlobal(volBuffer);
if (ret)
{
//Console.WriteLine("Volume Serial Number: 0X%.8X%.8X\n", ntfsVolData.VolumeSerialNumber.HighPart, ntfsVolData.VolumeSerialNumber.LowPart);
Console.WriteLine("The number of bytes in a cluster: {0}", ntfsVolData.BytesPerCluster);
Console.WriteLine("The number of bytes in a file record segment: {0}", ntfsVolData.BytesPerFileRecordSegment);
Console.WriteLine("The number of bytes in a sector: {0}", ntfsVolData.BytesPerSector);
Console.WriteLine("The number of clusters in a file record segment: {0}", ntfsVolData.ClustersPerFileRecordSegment);
Console.WriteLine("The number of free clusters in the specified volume: {0}", ntfsVolData.FreeClusters);
//Console.WriteLine("The starting logical cluster number of the master file table mirror: 0X%.8X%.8X\n", ntfsVolData.Mft2StartLcn.HighPart, ntfsVolData.Mft2StartLcn.LowPart);
//Console.WriteLine("The starting logical cluster number of the master file table: 0X%.8X%.8X\n", ntfsVolData.MftStartLcn.HighPart, ntfsVolData.MftStartLcn.LowPart);
Console.WriteLine("The length of the master file table, in bytes: {0}", ntfsVolData.MftValidDataLength);
//Console.WriteLine("The ending logical cluster number of the master file table zone: 0X%.8X%.8X\n", ntfsVolData.MftZoneEnd.HighPart, ntfsVolData.MftZoneEnd.LowPart);
//Console.WriteLine("The starting logical cluster number of the master file table zone: 0X%.8X%.8X\n", ntfsVolData.MftZoneStart.HighPart, ntfsVolData.MftZoneStart.LowPart);
Console.WriteLine("The number of sectors: {0}", ntfsVolData.NumberSectors);
Console.WriteLine("Total Clusters (used and free): {0}", ntfsVolData.TotalClusters);
Console.WriteLine("The number of reserved clusters: {0}\n", ntfsVolData.TotalReserved);
}
Int64 QuadPart = 1024; // 1024 or 2048
long total_file_count = (ntfsVolData.MftValidDataLength / QuadPart);
//total_file_count = total_file_count / 1000; //test
//Int32[] parentid = new Int32[total_file_count];
MFT_FILE_INFO[] fileinfos = new MFT_FILE_INFO[total_file_count];
Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER ob = new Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER();
int obSize = Marshal.SizeOf(ob) + ntfsVolData.BytesPerFileRecordSegment - 1;
//int obSize = sizeof(Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER) + ntfsVolData.BytesPerFileRecordSegment - 1;
Win32API.NTFS_FILE_RECORD_INPUT_BUFFER mftRecordInput = new Win32API.NTFS_FILE_RECORD_INPUT_BUFFER();
int mftRecordInputSize = Marshal.SizeOf(mftRecordInput);
bool abort = false;
int per = 0;
//Win32API.FILE_RECORD_HEADER hdum = new Win32API.FILE_RECORD_HEADER();
//int hdumSize = Marshal.SizeOf(hdum);
long start = 0;
for (long i = start; i < total_file_count; i++)
{
mftRecordInput.FileReferenceNumber = i;
IntPtr input_buffer = Marshal.AllocHGlobal(mftRecordInputSize);
Win32API.ZeroMemory(input_buffer, mftRecordInputSize);
Marshal.StructureToPtr(mftRecordInput, input_buffer, true);
IntPtr output_buffer = Marshal.AllocHGlobal(obSize);
if (i == total_file_count * 0.2)
{
s20 = DateTime.Now;
}
else if (i == total_file_count * 0.5)
{
s50 = DateTime.Now;
}
else if (i == total_file_count * 0.9)
{
s90 = DateTime.Now;
}
var bDioControl = Win32API.DeviceIoControl(
hVolume,
Win32API.FSCTL_GET_NTFS_FILE_RECORD,
input_buffer,
mftRecordInputSize,
output_buffer,
obSize,
out lpBytesReturned,
IntPtr.Zero);
//IntPtr hp = Marshal.AllocHGlobal(hdumSize);
//uint read = 0;
//Marshal.StructureToPtr(hdum, hp, true);
//byte[] buffer = new byte[Marshal.SizeOf(hdum)];
//fixed (byte* p = buffer) {
// //ReadFile(readhandle, p, lpNumberOfBytesRead, &n, 0);
// Win32API.ReadFile(hVolume, hp, (uint)(1024 * ntfsVolData.BytesPerCluster), ref read, IntPtr.Zero);
// Win32API.FILE_RECORD_HEADER* ph = (Win32API.FILE_RECORD_HEADER*)((int)hp);
//}
//fixed (Win32API.NTFS_FILE_RECORD_INPUT_BUFFER* ptr = (&mftRecordInput)) {
// var bDioControl = Win32API.DeviceIoControl(
// hVolume,
// Win32API.FSCTL_GET_NTFS_FILE_RECORD,
// (IntPtr)ptr,
// mftRecordInputSize,
// output_buffer,
// obSize,
// out lpBytesReturned,
// IntPtr.Zero);
//}
Win32API.FILE_RECORD_HEADER *p_file_record_header;
var outbuff = Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER.FromPtr(output_buffer);
//byte* ptr = (byte*)output_buffer + (int)Marshal.OffsetOf(typeof(Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER), "FileRecordBuffer");
fixed(byte *ptr = &outbuff.FileRecordBuffer[0])
{
p_file_record_header = (Win32API.FILE_RECORD_HEADER *)ptr;
Win32API.RECORD_ATTRIBUTE *attr = (Win32API.RECORD_ATTRIBUTE *)((int)ptr + p_file_record_header->AttributesOffset);
Win32API.STANDARD_INFORMATION *si;
if (p_file_record_header->Ntfs.Type == 1162627398) //'ELIF'
{
int stop = Math.Min(8, (int)p_file_record_header->NextAttributeNumber);
for (int j = 0; j < stop; j++)
{
//while (true) {
if (attr->AttributeType < 0 || (int)attr->AttributeType > 0x100)
{
break;
}
switch (attr->AttributeType)
{
case Win32API.AttributeType.AttributeFileName:
//Win32API.RESIDENT_ATTRIBUTE* regsttr = (Win32API.RESIDENT_ATTRIBUTE*)attr;
Win32API.FILENAME_ATTRIBUTE fattr =
(Win32API.FILENAME_ATTRIBUTE)Marshal.PtrToStructure((IntPtr)((((byte *)attr) + ((Win32API.RESIDENT_ATTRIBUTE *)attr)->ValueOffset)), typeof(Win32API.FILENAME_ATTRIBUTE));
//parentid[i] = (Int32)fattr.DirectoryFileReferenceNumber;
fileinfos[i].ParentID = (Int32)fattr.DirectoryFileReferenceNumber;
fileinfos[i].IsDirectory = ((p_file_record_header->Flags & 0x2) == 2);
fileinfos[i].Name = fattr.Name.Substring(0, fattr.NameLength);
//if (fattr.NameLength > 3) {
// fileinfos[i].Name = fattr.Name.Substring(0, fattr.NameLength);
//}
//else {
// fileinfos[i].Name = fattr.Name.Substring(0, fattr.NameLength);
//}
//fileinfos[i].Name = fattr.Name;
//fileinfos[i].Size = fattr.DataSize;
//goto BB;
break;
case Win32API.AttributeType.AttributeStandardInformation:
//var off = (Win32API.RESIDENT_ATTRIBUTE*)attr;
si = (Win32API.STANDARD_INFORMATION *)((byte *)attr + ((Win32API.RESIDENT_ATTRIBUTE *)attr)->ValueOffset);
//Win32API.STANDARD_INFORMATION sattr =
//(Win32API.STANDARD_INFORMATION)Marshal.PtrToStructure(new IntPtr(&attr + off->ValueOffset), typeof(Win32API.STANDARD_INFORMATION));
//fileinfos[i].CreationTime = si->CreationTime;
//fileinfos[i].LastWriteTime = si->LastWriteTime;
fileinfos[i].CreationTime = new DateTime((long)(si->CreationTime + baseticks));
fileinfos[i].LastWriteTime = new DateTime((long)(si->LastWriteTime + baseticks));
break;
case Win32API.AttributeType.AttributeData:
if (attr->NonResident == 1)
{
fileinfos[i].Size = ((Win32API.NONRESIDENT_ATTRIBUTE *)attr)->DataSize;
}
else
{
fileinfos[i].Size = ((Win32API.RESIDENT_ATTRIBUTE *)attr)->ValueLength;
}
break;
default:
break;
}
if (attr->Length > 0 && attr->Length < (int)p_file_record_header->BytesInUse)
{
attr = (Win32API.RECORD_ATTRIBUTE *)((byte *)attr + attr->Length);
}
else
if (attr->NonResident == 1) //TRUE)
{
attr = (Win32API.RECORD_ATTRIBUTE *)((byte *)attr + sizeof(Win32API.NONRESIDENT_ATTRIBUTE));
}
}
//BB:
// ;
//if (fileinfos[i].Name != null && fileinfos[i].Name.Contains("wv.ncb")) {
// var f = fileinfos[i];
// var ss = f.Size;
// int h = 0;
//}
}
}
Marshal.FreeHGlobal(output_buffer);
Marshal.FreeHGlobal(input_buffer);
if (i == total_file_count * 0.21)
{
sp20 = DateTime.Now - s20;
}
else if (i == total_file_count * 0.51)
{
sp50 = DateTime.Now - s50;
}
else if (i == total_file_count * 0.91)
{
sp90 = DateTime.Now - s90;
}
if (CallBackEvent != null && (per < i * 100 / total_file_count))
{
per = (int)(i * 100 / total_file_count);
abort = CallBackEvent(per);
if (abort)
{
break;
}
}
}
Win32API.CloseHandle(hVolume);
var di20 = sp20.TotalMilliseconds;
var di50 = sp50.TotalMilliseconds;
var di90 = sp90.TotalMilliseconds;
//{
// int start = 27;
// StringBuilder buf = new StringBuilder();
// var stack = new List<Int32>();
// int count = fileinfos.Count();
// for (int i = start; i < count; i++) {
// if (fileinfos[i].Name != null) {
// stack.Clear();
// var parent = parentid[i];
// while ((parent != 0 && parent != 5) && parent < count) {
// stack.Add(parent);
// parent = parentid[parent];
// }
// stack.Reverse();
// buf.Remove(0, buf.Length);
// buf.Append(driveInfo.Name);
// foreach (var item in stack) {
// buf.Append(fileinfos[item].Name);
// buf.Append(@"\");
// }
// fileinfos[i].Path = buf.ToString();
// }
// }
//}
return(fileinfos);
}
public unsafe MFT_FILE_INFO[] read(DriveInfo driveInfo)
{
TimeSpan utcOffset = System.TimeZoneInfo.Local.BaseUtcOffset;
var baseticks = (ulong)(new DateTime(1601, 01, 01).Ticks + utcOffset.Ticks);
string pathRoot = string.Concat(@"\\.\", driveInfo.Name.Substring(0, 2));
var hVolume = Win32API.CreateFile(
pathRoot,
Win32API.GENERIC_READ | Win32API.GENERIC_WRITE,
Win32API.FILE_SHARE_READ | Win32API.FILE_SHARE_WRITE,
IntPtr.Zero,
Win32API.OPEN_EXISTING,
0,
IntPtr.Zero);
if (hVolume.ToInt32() == Win32API.INVALID_HANDLE_VALUE) {
Win32API.CloseHandle(hVolume);
//Marshal.GetLastWin32Error
return new MFT_FILE_INFO[1];
}
Win32API.NTFS_VOLUME_DATA_BUFFER ntfsVolData = new Win32API.NTFS_VOLUME_DATA_BUFFER();
int ntfsVolDataSize = Marshal.SizeOf(ntfsVolData);
IntPtr volBuffer = Marshal.AllocHGlobal(ntfsVolDataSize);
//Win32API.ZeroMemory(volBuffer, ntfsVolDataSize);
//Marshal.StructureToPtr(ntfsVolData, volBuffer, true);
uint lpBytesReturned = 0;
var ret = Win32API.DeviceIoControl(
hVolume,
Win32API.FSCTL_GET_NTFS_VOLUME_DATA,
IntPtr.Zero,
0,
volBuffer,
ntfsVolDataSize,
out lpBytesReturned,
IntPtr.Zero);
ntfsVolData = (Win32API.NTFS_VOLUME_DATA_BUFFER)Marshal.PtrToStructure(volBuffer, typeof(Win32API.NTFS_VOLUME_DATA_BUFFER));
Marshal.FreeHGlobal(volBuffer);
if (ret) {
//Console.WriteLine("Volume Serial Number: 0X%.8X%.8X\n", ntfsVolData.VolumeSerialNumber.HighPart, ntfsVolData.VolumeSerialNumber.LowPart);
Console.WriteLine("The number of bytes in a cluster: {0}", ntfsVolData.BytesPerCluster);
Console.WriteLine("The number of bytes in a file record segment: {0}", ntfsVolData.BytesPerFileRecordSegment);
Console.WriteLine("The number of bytes in a sector: {0}", ntfsVolData.BytesPerSector);
Console.WriteLine("The number of clusters in a file record segment: {0}", ntfsVolData.ClustersPerFileRecordSegment);
Console.WriteLine("The number of free clusters in the specified volume: {0}", ntfsVolData.FreeClusters);
//Console.WriteLine("The starting logical cluster number of the master file table mirror: 0X%.8X%.8X\n", ntfsVolData.Mft2StartLcn.HighPart, ntfsVolData.Mft2StartLcn.LowPart);
//Console.WriteLine("The starting logical cluster number of the master file table: 0X%.8X%.8X\n", ntfsVolData.MftStartLcn.HighPart, ntfsVolData.MftStartLcn.LowPart);
Console.WriteLine("The length of the master file table, in bytes: {0}", ntfsVolData.MftValidDataLength);
//Console.WriteLine("The ending logical cluster number of the master file table zone: 0X%.8X%.8X\n", ntfsVolData.MftZoneEnd.HighPart, ntfsVolData.MftZoneEnd.LowPart);
//Console.WriteLine("The starting logical cluster number of the master file table zone: 0X%.8X%.8X\n", ntfsVolData.MftZoneStart.HighPart, ntfsVolData.MftZoneStart.LowPart);
Console.WriteLine("The number of sectors: {0}", ntfsVolData.NumberSectors);
Console.WriteLine("Total Clusters (used and free): {0}", ntfsVolData.TotalClusters);
Console.WriteLine("The number of reserved clusters: {0}\n", ntfsVolData.TotalReserved);
}
Int64 QuadPart = 1024; // 1024 or 2048
long total_file_count = (ntfsVolData.MftValidDataLength / QuadPart);
//total_file_count = total_file_count / 1000; //test
//Int32[] parentid = new Int32[total_file_count];
MFT_FILE_INFO[] fileinfos = new MFT_FILE_INFO[total_file_count];
Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER ob = new Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER();
int obSize = Marshal.SizeOf(ob) + ntfsVolData.BytesPerFileRecordSegment - 1;
//int obSize = sizeof(Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER) + ntfsVolData.BytesPerFileRecordSegment - 1;
Win32API.NTFS_FILE_RECORD_INPUT_BUFFER mftRecordInput = new Win32API.NTFS_FILE_RECORD_INPUT_BUFFER();
int mftRecordInputSize = Marshal.SizeOf(mftRecordInput);
bool abort = false;
int per = 0;
//Win32API.FILE_RECORD_HEADER hdum = new Win32API.FILE_RECORD_HEADER();
//int hdumSize = Marshal.SizeOf(hdum);
long start = 0;
for (long i = start; i < total_file_count; i++) {
mftRecordInput.FileReferenceNumber = i;
IntPtr input_buffer = Marshal.AllocHGlobal(mftRecordInputSize);
Win32API.ZeroMemory(input_buffer, mftRecordInputSize);
Marshal.StructureToPtr(mftRecordInput, input_buffer, true);
IntPtr output_buffer = Marshal.AllocHGlobal(obSize);
if (i == total_file_count * 0.2)
s20 = DateTime.Now;
else if (i == total_file_count * 0.5)
s50 = DateTime.Now;
else if (i == total_file_count * 0.9)
s90 = DateTime.Now;
var bDioControl = Win32API.DeviceIoControl(
hVolume,
Win32API.FSCTL_GET_NTFS_FILE_RECORD,
input_buffer,
mftRecordInputSize,
output_buffer,
obSize,
out lpBytesReturned,
IntPtr.Zero);
//IntPtr hp = Marshal.AllocHGlobal(hdumSize);
//uint read = 0;
//Marshal.StructureToPtr(hdum, hp, true);
//byte[] buffer = new byte[Marshal.SizeOf(hdum)];
//fixed (byte* p = buffer) {
// //ReadFile(readhandle, p, lpNumberOfBytesRead, &n, 0);
// Win32API.ReadFile(hVolume, hp, (uint)(1024 * ntfsVolData.BytesPerCluster), ref read, IntPtr.Zero);
// Win32API.FILE_RECORD_HEADER* ph = (Win32API.FILE_RECORD_HEADER*)((int)hp);
//}
//fixed (Win32API.NTFS_FILE_RECORD_INPUT_BUFFER* ptr = (&mftRecordInput)) {
// var bDioControl = Win32API.DeviceIoControl(
// hVolume,
// Win32API.FSCTL_GET_NTFS_FILE_RECORD,
// (IntPtr)ptr,
// mftRecordInputSize,
// output_buffer,
// obSize,
// out lpBytesReturned,
// IntPtr.Zero);
//}
Win32API.FILE_RECORD_HEADER* p_file_record_header;
var outbuff = Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER.FromPtr(output_buffer);
//byte* ptr = (byte*)output_buffer + (int)Marshal.OffsetOf(typeof(Win32API.NTFS_FILE_RECORD_OUTPUT_BUFFER), "FileRecordBuffer");
fixed (byte* ptr = &outbuff.FileRecordBuffer[0]) {
p_file_record_header = (Win32API.FILE_RECORD_HEADER*)ptr;
Win32API.RECORD_ATTRIBUTE* attr = (Win32API.RECORD_ATTRIBUTE*)((int)ptr + p_file_record_header->AttributesOffset);
Win32API.STANDARD_INFORMATION* si;
if (p_file_record_header->Ntfs.Type == 1162627398) {//'ELIF'
int stop = Math.Min(8, (int)p_file_record_header->NextAttributeNumber);
for (int j=0;j<stop;j++){
//while (true) {
if (attr->AttributeType < 0 || (int)attr->AttributeType > 0x100) break;
switch (attr->AttributeType) {
case Win32API.AttributeType.AttributeFileName:
//Win32API.RESIDENT_ATTRIBUTE* regsttr = (Win32API.RESIDENT_ATTRIBUTE*)attr;
Win32API.FILENAME_ATTRIBUTE fattr =
(Win32API.FILENAME_ATTRIBUTE)Marshal.PtrToStructure((IntPtr)((((byte*)attr) + ((Win32API.RESIDENT_ATTRIBUTE*)attr)->ValueOffset)), typeof(Win32API.FILENAME_ATTRIBUTE));
//parentid[i] = (Int32)fattr.DirectoryFileReferenceNumber;
fileinfos[i].ParentID = (Int32)fattr.DirectoryFileReferenceNumber;
fileinfos[i].IsDirectory = ((p_file_record_header->Flags & 0x2) == 2);
fileinfos[i].Name = fattr.Name.Substring(0, fattr.NameLength);
//if (fattr.NameLength > 3) {
// fileinfos[i].Name = fattr.Name.Substring(0, fattr.NameLength);
//}
//else {
// fileinfos[i].Name = fattr.Name.Substring(0, fattr.NameLength);
//}
//fileinfos[i].Name = fattr.Name;
//fileinfos[i].Size = fattr.DataSize;
//goto BB;
break;
case Win32API.AttributeType.AttributeStandardInformation:
//var off = (Win32API.RESIDENT_ATTRIBUTE*)attr;
si = (Win32API.STANDARD_INFORMATION*)((byte*)attr + ((Win32API.RESIDENT_ATTRIBUTE*)attr)->ValueOffset);
//Win32API.STANDARD_INFORMATION sattr =
//(Win32API.STANDARD_INFORMATION)Marshal.PtrToStructure(new IntPtr(&attr + off->ValueOffset), typeof(Win32API.STANDARD_INFORMATION));
//fileinfos[i].CreationTime = si->CreationTime;
//fileinfos[i].LastWriteTime = si->LastWriteTime;
fileinfos[i].CreationTime = new DateTime((long)(si->CreationTime + baseticks));
fileinfos[i].LastWriteTime =new DateTime((long)(si->LastWriteTime + baseticks));
break;
case Win32API.AttributeType.AttributeData:
if (attr->NonResident == 1) {
fileinfos[i].Size = ((Win32API.NONRESIDENT_ATTRIBUTE*)attr)->DataSize;
} else {
fileinfos[i].Size = ((Win32API.RESIDENT_ATTRIBUTE*)attr)->ValueLength;
}
break;
default:
break;
}
if (attr->Length > 0 && attr->Length < (int)p_file_record_header->BytesInUse)
attr = (Win32API.RECORD_ATTRIBUTE*)((byte*)attr + attr->Length);
else
if (attr->NonResident == 1)//TRUE)
attr = (Win32API.RECORD_ATTRIBUTE*)((byte*)attr + sizeof(Win32API.NONRESIDENT_ATTRIBUTE));
}
//BB:
// ;
//if (fileinfos[i].Name != null && fileinfos[i].Name.Contains("wv.ncb")) {
// var f = fileinfos[i];
// var ss = f.Size;
// int h = 0;
//}
}
}
Marshal.FreeHGlobal(output_buffer);
Marshal.FreeHGlobal(input_buffer);
if (i == total_file_count * 0.21)
sp20 = DateTime.Now - s20;
else if (i == total_file_count * 0.51)
sp50 = DateTime.Now - s50;
else if (i == total_file_count * 0.91)
sp90 = DateTime.Now - s90;
if (CallBackEvent != null && (per < i * 100 / total_file_count)) {
per = (int)(i * 100 / total_file_count);
abort = CallBackEvent(per);
if (abort) {
break;
}
}
}
Win32API.CloseHandle(hVolume);
var di20 = sp20.TotalMilliseconds;
var di50 = sp50.TotalMilliseconds;
var di90 = sp90.TotalMilliseconds;
//{
// int start = 27;
// StringBuilder buf = new StringBuilder();
// var stack = new List<Int32>();
// int count = fileinfos.Count();
// for (int i = start; i < count; i++) {
// if (fileinfos[i].Name != null) {
// stack.Clear();
// var parent = parentid[i];
// while ((parent != 0 && parent != 5) && parent < count) {
// stack.Add(parent);
// parent = parentid[parent];
// }
// stack.Reverse();
// buf.Remove(0, buf.Length);
// buf.Append(driveInfo.Name);
// foreach (var item in stack) {
// buf.Append(fileinfos[item].Name);
// buf.Append(@"\");
// }
// fileinfos[i].Path = buf.ToString();
// }
// }
//}
return fileinfos;
}