protected void Refresh()
{
DataInitialised = File.FillAttributeInfoCore(Transaction, LongFullName, ref Win32AttributeData, false, false);
}
public void Refresh()
{
DataInitialised = File.FillAttributeInfoCore(Transaction, LongFullName, ref Win32AttributeData, false, false);
IsDirectory = File.IsDirectory(Win32AttributeData.dwFileAttributes);
}
internal static void DeleteDirectoryCore(FileSystemEntryInfo fileSystemEntryInfo, KernelTransaction transaction, string path, bool recursive, bool ignoreReadOnly, bool requireEmpty, bool continueOnNotExist, PathFormat pathFormat)
{
#region Setup
if (pathFormat == PathFormat.RelativePath)
{
Path.CheckSupportedPathFormat(path, true, true);
}
if (fileSystemEntryInfo == null)
{
// MSDN: .NET 3.5+: DirectoryNotFoundException:
// Path does not exist or could not be found.
// Path refers to a file instead of a directory.
// The specified path is invalid (for example, it is on an unmapped drive).
fileSystemEntryInfo = File.GetFileSystemEntryInfoCore(true, transaction,
Path.GetExtendedLengthPathCore(transaction, path, pathFormat, GetFullPathOptions.TrimEnd | GetFullPathOptions.RemoveTrailingDirectorySeparator),
continueOnNotExist, pathFormat);
}
if (fileSystemEntryInfo == null)
{
return;
}
string pathLp = fileSystemEntryInfo.LongFullPath;
#endregion // Setup
// Do not follow mount points nor symbolic links, but do delete the reparse point itself.
// If directory is reparse point, disable recursion.
if (recursive && fileSystemEntryInfo.IsReparsePoint)
{
recursive = false;
}
// Check to see if this is a mount point, and unmount it.
if (fileSystemEntryInfo.IsMountPoint)
{
int lastError = Volume.DeleteVolumeMountPointCore(pathLp, true);
if (lastError != Win32Errors.ERROR_SUCCESS && lastError != Win32Errors.ERROR_PATH_NOT_FOUND)
{
NativeError.ThrowException(lastError, pathLp);
}
// Now it is safe to delete the actual directory.
}
if (recursive)
{
// Enumerate all file system objects.
foreach (var fsei in EnumerateFileSystemEntryInfosCore <FileSystemEntryInfo>(transaction, pathLp, Path.WildcardStarMatchAll, DirectoryEnumerationOptions.FilesAndFolders, PathFormat.LongFullPath))
{
if (fsei.IsDirectory)
{
DeleteDirectoryCore(fsei, transaction, null, true, ignoreReadOnly, requireEmpty, true, PathFormat.LongFullPath);
}
else
{
File.DeleteFileCore(transaction, fsei.LongFullPath, ignoreReadOnly, PathFormat.LongFullPath);
}
}
}
#region Remove
startRemoveDirectory:
if (!(transaction == null || !NativeMethods.IsAtLeastWindowsVista
// RemoveDirectory() / RemoveDirectoryTransacted()
// In the ANSI version of this function, the name is limited to MAX_PATH characters.
// To extend this limit to 32,767 wide characters, call the Unicode version of the function and prepend "\\?\" to the path.
// 2014-09-09: MSDN confirms LongPath usage.
// RemoveDirectory on a symbolic link will remove the link itself.
? NativeMethods.RemoveDirectory(pathLp)
: NativeMethods.RemoveDirectoryTransacted(pathLp, transaction.SafeHandle)))
{
int lastError = Marshal.GetLastWin32Error();
switch ((uint)lastError)
{
case Win32Errors.ERROR_DIR_NOT_EMPTY:
if (requireEmpty)
{
// MSDN: .NET 3.5+: IOException: The directory specified by path is not an empty directory.
throw new DirectoryNotEmptyException(pathLp);
}
goto startRemoveDirectory;
case Win32Errors.ERROR_DIRECTORY:
// MSDN: .NET 3.5+: DirectoryNotFoundException: Path refers to a file instead of a directory.
if (File.ExistsCore(false, transaction, pathLp, PathFormat.LongFullPath))
{
throw new DirectoryNotFoundException(string.Format(CultureInfo.CurrentCulture, "({0}) {1}", Win32Errors.ERROR_INVALID_PARAMETER, string.Format(CultureInfo.CurrentCulture, Resources.Target_Directory_Is_A_File, pathLp)));
}
break;
case Win32Errors.ERROR_PATH_NOT_FOUND:
if (continueOnNotExist)
{
return;
}
break;
case Win32Errors.ERROR_SHARING_VIOLATION:
// MSDN: .NET 3.5+: IOException: The directory is being used by another process or there is an open handle on the directory.
NativeError.ThrowException(lastError, pathLp);
break;
case Win32Errors.ERROR_ACCESS_DENIED:
var data = new NativeMethods.WIN32_FILE_ATTRIBUTE_DATA();
int dataInitialised = File.FillAttributeInfoCore(transaction, pathLp, ref data, false, true);
if (data.dwFileAttributes != (FileAttributes)(-1))
{
if ((data.dwFileAttributes & FileAttributes.ReadOnly) == FileAttributes.ReadOnly)
{
// MSDN: .NET 3.5+: IOException: The directory specified by path is read-only.
if (ignoreReadOnly)
{
// Reset directory attributes.
File.SetAttributesCore(true, transaction, pathLp, FileAttributes.Normal, true, PathFormat.LongFullPath);
goto startRemoveDirectory;
}
// MSDN: .NET 3.5+: IOException: The directory is read-only.
throw new DirectoryReadOnlyException(pathLp);
}
}
if (dataInitialised == Win32Errors.ERROR_SUCCESS)
{
// MSDN: .NET 3.5+: UnauthorizedAccessException: The caller does not have the required permission.
NativeError.ThrowException(lastError, pathLp);
}
break;
}
// MSDN: .NET 3.5+: IOException:
// A file with the same name and location specified by path exists.
// The directory specified by path is read-only, or recursive is false and path is not an empty directory.
// The directory is the application's current working directory.
// The directory contains a read-only file.
// The directory is being used by another process.
NativeError.ThrowException(lastError, pathLp);
}
#endregion // Remove
}
private static void DeleteDirectoryCore(KernelTransaction transaction, string pathLp, bool ignoreReadOnly, bool continueOnNotFound)
{
startRemoveDirectory:
var success = transaction == null || !NativeMethods.IsAtLeastWindowsVista
// RemoveDirectory() / RemoveDirectoryTransacted()
// 2014-09-09: MSDN confirms LongPath usage.
// RemoveDirectory on a symbolic link will remove the link itself.
? NativeMethods.RemoveDirectory(pathLp)
: NativeMethods.RemoveDirectoryTransacted(pathLp, transaction.SafeHandle);
var lastError = Marshal.GetLastWin32Error();
if (!success)
{
switch ((uint)lastError)
{
case Win32Errors.ERROR_DIR_NOT_EMPTY:
// MSDN: .NET 3.5+: IOException: The directory specified by path is not an empty directory.
throw new DirectoryNotEmptyException(pathLp, true);
case Win32Errors.ERROR_DIRECTORY:
// MSDN: .NET 3.5+: DirectoryNotFoundException: Path refers to a file instead of a directory.
if (File.ExistsCore(transaction, false, pathLp, PathFormat.LongFullPath))
{
throw new DirectoryNotFoundException(string.Format(CultureInfo.InvariantCulture, "({0}) {1}", lastError, string.Format(CultureInfo.InvariantCulture, Resources.Target_Directory_Is_A_File, pathLp)));
}
break;
case Win32Errors.ERROR_PATH_NOT_FOUND:
if (continueOnNotFound)
{
return;
}
break;
case Win32Errors.ERROR_SHARING_VIOLATION:
// MSDN: .NET 3.5+: IOException: The directory is being used by another process or there is an open handle on the directory.
NativeError.ThrowException(lastError, pathLp);
break;
case Win32Errors.ERROR_ACCESS_DENIED:
var attrs = new NativeMethods.WIN32_FILE_ATTRIBUTE_DATA();
var dataInitialised = File.FillAttributeInfoCore(transaction, pathLp, ref attrs, false, true);
if (File.IsReadOnly(attrs.dwFileAttributes))
{
// MSDN: .NET 3.5+: IOException: The directory specified by path is read-only.
if (ignoreReadOnly)
{
// Reset directory attributes to Normal.
File.SetAttributesCore(transaction, true, pathLp, FileAttributes.Normal, PathFormat.LongFullPath);
goto startRemoveDirectory;
}
// MSDN: .NET 3.5+: IOException: The directory is read-only.
throw new DirectoryReadOnlyException(pathLp);
}
// MSDN: .NET 3.5+: UnauthorizedAccessException: The caller does not have the required permission.
if (dataInitialised == Win32Errors.ERROR_SUCCESS)
{
NativeError.ThrowException(lastError, pathLp);
}
break;
}
// MSDN: .NET 3.5+: IOException:
// A file with the same name and location specified by path exists.
// The directory specified by path is read-only, or recursive is false and path is not an empty directory.
// The directory is the application's current working directory.
// The directory contains a read-only file.
// The directory is being used by another process.
NativeError.ThrowException(lastError, pathLp);
}
}
public T Get <T>()
{
using (new NativeMethods.ChangeErrorMode(NativeMethods.ErrorMode.FailCriticalErrors))
{
NativeMethods.WIN32_FIND_DATA win32FindData;
// Not explicitly set to be a folder.
if (!IsDirectory)
{
using (var handle = FindFirstFile(InputPath, out win32FindData))
return(null == handle
? (T)(object)null
: NewFileSystemEntryType <T>((win32FindData.dwFileAttributes & FileAttributes.Directory) != 0, null, null, InputPath, win32FindData));
}
using (var handle = FindFirstFile(InputPath, out win32FindData, true))
{
if (null == handle)
{
// InputPath might be a logical drive such as: "C:\", "D:\".
var attrs = new NativeMethods.WIN32_FILE_ATTRIBUTE_DATA();
var lastError = File.FillAttributeInfoCore(Transaction, Path.GetRegularPathCore(InputPath, GetFullPathOptions.None, false), ref attrs, false, true);
if (lastError != Win32Errors.NO_ERROR)
{
if (!ContinueOnException)
{
switch ((uint)lastError)
{
case Win32Errors.ERROR_FILE_NOT_FOUND: // FileNotFoundException.
case Win32Errors.ERROR_PATH_NOT_FOUND: // DirectoryNotFoundException.
case Win32Errors.ERROR_NOT_READY: // DeviceNotReadyException: Floppy device or network drive not ready.
case Win32Errors.ERROR_BAD_NET_NAME:
Directory.ExistsDriveOrFolderOrFile(Transaction, InputPath, IsDirectory, lastError, true, true);
break;
}
ThrowPossibleException((uint)lastError, InputPath);
}
return((T)(object)null);
}
win32FindData = new NativeMethods.WIN32_FIND_DATA
{
cFileName = Path.CurrentDirectoryPrefix,
dwFileAttributes = attrs.dwFileAttributes,
ftCreationTime = attrs.ftCreationTime,
ftLastAccessTime = attrs.ftLastAccessTime,
ftLastWriteTime = attrs.ftLastWriteTime,
nFileSizeHigh = attrs.nFileSizeHigh,
nFileSizeLow = attrs.nFileSizeLow
};
}
VerifyInstanceType(win32FindData);
}
return(NewFileSystemEntryType <T>((win32FindData.dwFileAttributes & FileAttributes.Directory) != 0, null, null, InputPath, win32FindData));
}
}
