private UInt64 FrnFromPath(string pszPath) { UInt64 FRN = 0; IntPtr hPath = PInvokeWin32.CreateFile(pszPath, 0, PInvokeWin32.FILE_SHARE_READ | PInvokeWin32.FILE_SHARE_WRITE, IntPtr.Zero, PInvokeWin32.OPEN_EXISTING, PInvokeWin32.FILE_FLAG_BACKUP_SEMANTICS, IntPtr.Zero); if (hPath.ToInt32() != PInvokeWin32.INVALID_HANDLE_VALUE) { PInvokeWin32.BY_HANDLE_FILE_INFORMATION fi = new PInvokeWin32.BY_HANDLE_FILE_INFORMATION(); bool bRtn = PInvokeWin32.GetFileInformationByHandle(hPath, out fi); if (bRtn) { UInt64 fileIndexHigh = (UInt64)fi.FileIndexHigh; FRN = (fileIndexHigh << 32) | fi.FileIndexLow; } else { throw new IOException("GetFileInformationbyHandle() returned invalid handle", new Win32Exception(Marshal.GetLastWin32Error())); } PInvokeWin32.CloseHandle(hPath); } else { throw new IOException("Unable to get frn entry", new Win32Exception(Marshal.GetLastWin32Error())); } return(FRN); }
static public UInt64 InfoFromPath(string pszPath) { UInt64 ms = 0; IntPtr hPath = PInvokeWin32.CreateFile(pszPath, 0, PInvokeWin32.FILE_SHARE_READ | PInvokeWin32.FILE_SHARE_WRITE, IntPtr.Zero, PInvokeWin32.OPEN_EXISTING, PInvokeWin32.FILE_FLAG_BACKUP_SEMANTICS, IntPtr.Zero); if (hPath.ToInt32() != PInvokeWin32.INVALID_HANDLE_VALUE) { PInvokeWin32.BY_HANDLE_FILE_INFORMATION fi = new PInvokeWin32.BY_HANDLE_FILE_INFORMATION(); bool bRtn = PInvokeWin32.GetFileInformationByHandle(hPath, out fi); if (bRtn) { //System.DateTime dt = System.DateTime.FromFileTime((((long)fi.LastWriteTime.DateTimeHigh) << 32) | fi.LastWriteTime.DateTimeLow); //ms = (Int32)fi.LastWriteTime.DateTimeLow; UInt64 timeHigh = (UInt64)fi.LastWriteTime.DateTimeHigh; timeHigh = (timeHigh << 32) | fi.LastWriteTime.DateTimeLow; ms = timeHigh; } } PInvokeWin32.CloseHandle(hPath); return(ms); }
private void GetRootHandle() { string vol = string.Concat("\\\\.\\", _drive); _changeJournalRootHandle = PInvokeWin32.CreateFile(vol, PInvokeWin32.GENERIC_READ | PInvokeWin32.GENERIC_WRITE, PInvokeWin32.FILE_SHARE_READ | PInvokeWin32.FILE_SHARE_WRITE, IntPtr.Zero, PInvokeWin32.OPEN_EXISTING, 0, IntPtr.Zero); if (_changeJournalRootHandle.ToInt32() == PInvokeWin32.INVALID_HANDLE_VALUE) { throw new IOException("CreateFile() returned invalid handle", new Win32Exception(Marshal.GetLastWin32Error())); } }