private SafeFindFileHandle FindFirstFile(string pathLp, out NativeMethods.WIN32_FIND_DATA win32FindData, bool suppressException = false)
{
int lastError;
var searchOption = null != FileSystemObjectType && (bool)FileSystemObjectType ? NativeMethods.FINDEX_SEARCH_OPS.SearchLimitToDirectories : NativeMethods.FINDEX_SEARCH_OPS.SearchNameMatch;
var handle = FileSystemInfo.FindFirstFileNative(Transaction, pathLp, FindExInfoLevel, searchOption, LargeCache, out lastError, out win32FindData);
if (!suppressException && !ContinueOnException)
{
if (null == handle)
{
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.
Directory.ExistsDriveOrFolderOrFile(Transaction, pathLp, IsDirectory, lastError, true, true);
break;
}
ThrowPossibleException((uint)lastError, pathLp);
}
//// When the handle is null and we are still here, it means the ErrorHandler is active, preventing the Exception from being thrown.
//if (null != handle)
// VerifyInstanceType(win32FindData);
}
return(handle);
}
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));
}
}
