private static SafeFileHandle FindFirstFileTransacted(string dirSpec, KtmTransactionHandle ktmTx, out NativeMethods.WIN32_FIND_DATA findFileData)
{
SafeFileHandle hFile = NativeMethods.FindFirstFileTransacted(
dirSpec,
NativeMethods.FINDEX_INFO_LEVELS.FindExInfoStandard,
out findFileData,
NativeMethods.FINDEX_SEARCH_OPS.FindExSearchNameMatch,
IntPtr.Zero,
0,
ktmTx);
if (hFile.IsInvalid)
{
NativeMethods.HandleCOMError(Marshal.GetLastWin32Error());
}
return(hFile);
}
// TODO - BCL match - add overload that has a 'searchOption' argument
public static FileSystemInfo[] GetFiles(string path, string searchPattern)
{
using (TransactionScope scope = new TransactionScope())
using (KtmTransactionHandle ktmTx = KtmTransactionHandle.CreateKtmTransactionHandle())
{
string dirSpec = System.IO.Path.Combine(path, searchPattern);
List<FileSystemInfo> files = new List<FileSystemInfo>();
List<FileSystemInfo> directories = new List<FileSystemInfo>();
NativeMethods.WIN32_FIND_DATA findFileData = new NativeMethods.WIN32_FIND_DATA();
SafeFileHandle hFind = FindFirstFileTransacted(dirSpec, ktmTx, out findFileData);
try
{
// List all the other files in the directory.
do
{
var fullPath = Path.Combine(path, findFileData.cFileName);
if (0x10 == (0x10 & findFileData.dwFileAttributes))
{
directories.Add(new DirectoryInfo(fullPath));
}
else
{
var fileInfo = new FileInfo(fullPath);
if (fileInfo.Exists)
{
var creationTime = findFileData.ftCreationTime.ToDateTime();
var lastAccessTime = findFileData.ftLastAccessTime.ToDateTime();
var lastWriteTime = findFileData.ftLastWriteTime.ToDateTime();
fileInfo.CreationTime = creationTime;
fileInfo.LastAccessTime = lastAccessTime;
fileInfo.LastWriteTime = lastWriteTime;
}
files.Add(fileInfo);
}
}
while (NativeMethods.FindNextFile(hFind, out findFileData));
int error = Marshal.GetLastWin32Error();
if (error != NativeMethods.ERROR_NO_MORE_FILES)
{
NativeMethods.HandleCOMError(error);
}
scope.Complete();
directories.AddRange(files);
return directories.ToArray();
}
finally
{
// Ignore failures from this api just as the BCL does...
NativeMethods.FindClose(hFind);
hFind.SetHandleAsInvalid();
}
}
}
