public static void DeleteFile(string path)
{
// We do not need to do nothing if file not exist
if (!File.Exists(path))
{
return;
}
using (KtmTransactionHandle ktmTx = KtmTransactionHandle.CreateKtmTransactionHandle())
{
// Delete the transacted file using P/Invoke.
bool result = NativeMethods.DeleteFileTransacted(path, ktmTx);
// Throw an exception if an error occured.
if (!result)
{
result = NativeMethods.DeleteFile(path);
if (!result)
{
NativeMethods.HandleCOMError(Marshal.GetLastWin32Error());
}
}
}
}
public static KtmTransactionHandle CreateKtmTransactionHandle()
{
if (Transaction.Current == null)
{
throw new InvalidOperationException(
"Cannot create a KTM handle without Transaction.Current");
}
return(KtmTransactionHandle.CreateKtmTransactionHandle(Transaction.Current));
}
internal static extern SafeFileHandle CreateFileTransacted(
[In] string lpFileName,
[In] NativeMethods.FileAccess dwDesiredAccess,
[In] NativeMethods.FileShare dwShareMode,
[In] IntPtr lpSecurityAttributes,
[In] NativeMethods.FileMode dwCreationDisposition,
[In] int dwFlagsAndAttributes,
[In] IntPtr hTemplateFile,
[In] KtmTransactionHandle hTransaction,
[In] IntPtr pusMiniVersion,
[In] IntPtr pExtendedParameter);
public static void CreateDir(
string path,
ref List <string> createdDirs)
{
DirectoryInfo directoryInfo = new DirectoryInfo(path);
using (KtmTransactionHandle ktmTx = KtmTransactionHandle.CreateKtmTransactionHandle())
{
CreateDirectory(directoryInfo, ktmTx, ref createdDirs);
}
}
public static SafeFileHandle Open(
string path,
FileMode mode,
FileAccess access,
FileShare share)
{
using (KtmTransactionHandle ktmTx = KtmTransactionHandle.CreateKtmTransactionHandle())
{
// Translate the managed flags to unmanaged flags.
NativeMethods.FileMode internalMode = TranslateFileMode(mode);
NativeMethods.FileShare internalShare = TranslateFileShare(share);
NativeMethods.FileAccess internalAccess = TranslateFileAccess(access);
// Create the transacted file using P/Invoke.
SafeFileHandle hFile = NativeMethods.CreateFileTransacted(
path,
internalAccess,
internalShare,
IntPtr.Zero,
internalMode,
0,
IntPtr.Zero,
ktmTx,
IntPtr.Zero,
IntPtr.Zero);
{
// Throw an exception if an error occured.
if (hFile.IsInvalid)
{
hFile = NativeMethods.CreateFile(
path,
internalAccess,
internalShare,
IntPtr.Zero,
internalMode,
0,
IntPtr.Zero);
if (hFile.IsInvalid)
{
NativeMethods.HandleCOMError(Marshal.GetLastWin32Error());
}
}
return(hFile);
}
}
}
public static void DeleteDir(string path)
{
using (KtmTransactionHandle ktmTx = KtmTransactionHandle.CreateKtmTransactionHandle())
{
bool result = NativeMethods.RemoveDirectoryTransacted(path, ktmTx);
// Throw an exception if an error occured.
if (!result)
{
result = NativeMethods.RemoveDirectory(path);
if (!result)
{
NativeMethods.HandleCOMError(Marshal.GetLastWin32Error());
}
}
}
}
private static void CreateDirectory(
DirectoryInfo dirInfo,
KtmTransactionHandle ktmTx,
ref List <string> createdDirs)
{
if (createdDirs.Exists(dir => StringUtil.CompareIgnoreCase(dirInfo.FullName, dir)))
{
return;
}
if (dirInfo.Parent != null && !dirInfo.Parent.Exists)
{
CreateDirectory(dirInfo.Parent, ktmTx, ref createdDirs);
}
CreateDirectoryTransacted(dirInfo.FullName, ktmTx);
createdDirs.Add(dirInfo.FullName);
}
public static void Move(string existingFileName, string newFileName)
{
using (KtmTransactionHandle ktmTx = KtmTransactionHandle.CreateKtmTransactionHandle())
{
NativeMethods.MoveFileFlags moveFlags = NativeMethods.MoveFileFlags.MOVEFILE_COPY_ALLOWED | NativeMethods.MoveFileFlags.MOVEFILE_REPLACE_EXISTING;
bool result = NativeMethods.MoveFileTransacted(existingFileName, newFileName, IntPtr.Zero, IntPtr.Zero, moveFlags, ktmTx);
// Throw an exception if an error occured.
if (result == false)
{
result = NativeMethods.MoveFileEx(existingFileName, newFileName, moveFlags);
if (result == false)
{
NativeMethods.HandleCOMError(Marshal.GetLastWin32Error());
}
}
}
}
private static bool CreateDirectoryTransacted(
string path,
KtmTransactionHandle ktmTx)
{
bool result = NativeMethods.CreateDirectoryTransacted(null, path, IntPtr.Zero, ktmTx);
if (!result)
{
result = NativeMethods.CreateDirectory(null, path, IntPtr.Zero);
if (!result)
{
Log.WriteDebug("Failed to create directory : [{0}] ... possibly already exists. Error : [{1}]",
path,
Marshal.GetLastWin32Error().ToString());
}
}
return(result);
}
internal static extern bool RemoveDirectoryTransacted(
[In][Optional] string lpDirectory,
[In] KtmTransactionHandle hTransaction);
internal static extern bool CreateDirectoryTransacted(
[In][Optional] string lpTemplateDirectory,
[In] string lpNewDirectory,
[In][Optional] IntPtr lpSecurityAttributes,
[In] KtmTransactionHandle hTransaction);
internal static extern bool MoveFileTransacted(
[In] string lpExistingFileName,
[In] string lpNewFileName,
[In] IntPtr lpProgressRoutine,
[In] IntPtr lpData,
[In] MoveFileFlags dwFlags, [In] KtmTransactionHandle hTransaction);
internal static extern bool DeleteFileTransacted(
[In] string lpFileName,
[In] KtmTransactionHandle hTransaction);
