public static FileStream Open(string path, FileMode mode, FileAccess access, FileShare share)
{
using (TransactionScope scope = new TransactionScope())
using (KtmTransactionHandle ktmTx = KtmTransactionHandle.CreateKtmTransactionHandle())
{
NativeMethods.FileMode internalMode = TranslateFileMode(mode);
NativeMethods.FileShare internalShare = TranslateFileShare(share);
NativeMethods.FileAccess internalAccess = TranslateFileAccess(access);
SafeFileHandle hFile = NativeMethods.CreateFileTransacted(
path,
internalAccess,
internalShare,
IntPtr.Zero,
internalMode,
0,
IntPtr.Zero,
ktmTx,
IntPtr.Zero,
IntPtr.Zero);
if (hFile.IsInvalid)
{
NativeMethods.HandleCOMError(Marshal.GetLastWin32Error());
}
FileStream stream = new FileStream(hFile, access);
scope.Complete();
return(stream);
}
}
internal static extern SafeFileHandle CreateFile(
[In] string lpFileName,
[In] NativeMethods.FileAccess dwDesiredAccess,
[In] NativeMethods.FileShare dwShareMode,
[In] IntPtr lpSecurityAttributes,
[In] NativeMethods.FileMode dwCreationDisposition,
[In] int dwFlagsAndAttributes,
[In] IntPtr hTemplateFile);
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 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);
}
}
}
