/// <summary>
/// Read a file with transaction
/// </summary>
/// <param name="path">Path to file</param>
/// <returns>Donnes lu</returns>
public object ReadFileTransacted(string path)
{
if (!File.Exists(path))
{
return(null);
}
SafeTransactionHandle txHandle = null;
SafeFileHandle fileHandle = null;
object raw = null;
try
{
IKernelTransaction kernelTx = (IKernelTransaction)TransactionInterop.GetDtcTransaction(System.Transactions.Transaction.Current);
kernelTx.GetHandle(out txHandle);
fileHandle
= CreateFileTransacted(
path
, SafeTransactionHandle.FileAccess.GENERIC_READ
, SafeTransactionHandle.FileShare.FILE_SHARE_READ
, IntPtr.Zero
, SafeTransactionHandle.FileMode.OPEN_ALWAYS
, 0
, IntPtr.Zero
, txHandle
, IntPtr.Zero
, IntPtr.Zero);
if (fileHandle.IsInvalid)
{
throw new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error());
}
using (FileStream stream = new FileStream(fileHandle, FileAccess.Read, 1024, false))
{
BinaryFormatter reader = new BinaryFormatter();
raw = reader.Deserialize(stream);
}
}
catch
{
raw = null;
}
finally
{
if (fileHandle != null && !fileHandle.IsInvalid)
{
fileHandle.Close();
fileHandle.Dispose();
}
if (txHandle != null && !txHandle.IsInvalid)
{
txHandle.Close();
txHandle.Dispose();
}
}
return(raw);
}
/// <summary>
/// Write a file with transaction
/// </summary>
/// <param name="data">Data to write</param>
/// <param name="path">Path to file</param>
/// <returns>Statut de l'opration</returns>
public static bool WriteStateFileTransacted(string path, XmlSerializer stateSerializer, AtomState atomState, System.Transactions.Transaction transaction)
{
if (atomState == null)
{
return(false);
}
SafeTransactionHandle txHandle = null;
SafeFileHandle fileHandle = null;
bool response = true;
try
{
IKernelTransaction kernelTx = (IKernelTransaction)TransactionInterop.GetDtcTransaction(transaction);
kernelTx.GetHandle(out txHandle);
fileHandle
= CreateFileTransacted(
path
, SafeTransactionHandle.FileAccess.GENERIC_WRITE
, SafeTransactionHandle.FileShare.FILE_SHARE_NONE
, IntPtr.Zero
, SafeTransactionHandle.FileMode.CREATE_ALWAYS
, 0
, IntPtr.Zero
, txHandle
, IntPtr.Zero
, IntPtr.Zero);
if (fileHandle.IsInvalid)
{
throw new System.ComponentModel.Win32Exception(Marshal.GetLastWin32Error());
}
using (FileStream stateFile = new FileStream(fileHandle, FileAccess.Write, 1024, false))
{
stateSerializer.Serialize(stateFile, atomState);
}
}
catch
{
transaction.Rollback();
response = false;
}
finally
{
if (fileHandle != null && !fileHandle.IsInvalid)
{
fileHandle.Close();
fileHandle.Dispose();
}
if (txHandle != null && !txHandle.IsInvalid)
{
txHandle.Close();
txHandle.Dispose();
}
}
return(response);
}
public static bool DeleteFiles(FileArgs args)
{
bool response = true;
string message = String.Empty;
return(TransactionActionHelper.DoActionWithCheckOnTransaction((ref string s) =>
{
foreach (var file in args.Files)
{
if (!response)
{
return false;
}
if (!TransactionActionHelper.CheckConditions((ref string mes) =>
{
if (!File.Exists(file))
{
mes = "Wrong path or file exists";
Transaction.Current.Rollback();
return false;
}
return true;
}, ref s))
{
return false;
}
SafeTransactionHandle txHandle = null;
try
{
IKernelTransaction kernelTx =
(IKernelTransaction)TransactionInterop.GetDtcTransaction(Transaction.Current);
kernelTx.GetHandle(out txHandle);
if (!DeleteFileTransacted(file, txHandle))
{
Transaction.Current.Rollback();
response = false;
}
}
catch (Exception ex)
{
response = false;
s = ex.Message;
Transaction.Current.Rollback();
}
finally
{
if (txHandle != null && !txHandle.IsInvalid)
{
txHandle.Dispose();
}
}
}
return response;
}, ref message));
}
private static SafeFileHandle CreateFileHandled(string path, ref string message)
{
SafeTransactionHandle txHandle = null;
SafeFileHandle fileHandle = null;
try
{
IKernelTransaction kernelTx =
(IKernelTransaction)TransactionInterop.GetDtcTransaction(Transaction.Current);
kernelTx.GetHandle(out txHandle);
fileHandle
= CreateFileTransacted(
path
, SafeTransactionHandle.FileAccess.GENERIC_WRITE
, SafeTransactionHandle.FileShare.FILE_SHARE_NONE
, IntPtr.Zero
, SafeTransactionHandle.FileMode.CREATE_ALWAYS
, 0
, IntPtr.Zero
, txHandle
, IntPtr.Zero
, IntPtr.Zero);
if (Path.GetExtension(path) == ".xaml")
{
WriteToFile(Properties.Resources.Template, path, ref message, fileHandle);
}
if (fileHandle.IsInvalid)
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
}
catch (Exception ex)
{
message = ex.Message;
Transaction.Current.Rollback();
}
finally
{
if (txHandle != null)
{
txHandle.Dispose();
}
}
return(fileHandle);
}
public static bool CopyFileTo(string path, string pathCopy, ref string message)
{
return(TransactionActionHelper.DoActionWithCheckOnTransaction((ref string s) =>
{
if (!TransactionActionHelper.CheckConditions((ref string mes) =>
{
if (!File.Exists(path) || File.Exists(pathCopy))
{
mes = "Wrong path or file exists";
Transaction.Current.Rollback();
return false;
}
return true;
}, ref s))
{
return false;
}
bool response = false;
SafeTransactionHandle txHandle = null;
try
{
IKernelTransaction kernelTx =
(IKernelTransaction)TransactionInterop.GetDtcTransaction(Transaction.Current);
kernelTx.GetHandle(out txHandle);
response = CopyFileTransacted(path, pathCopy, IntPtr.Zero, IntPtr.Zero, false,
SafeTransactionHandle.Copy.COPY_FILE_FAIL_IF_EXISTS, txHandle);
}
catch (Exception ex)
{
s = ex.Message;
Transaction.Current.Rollback();
}
finally
{
if (txHandle != null)
{
txHandle.Dispose();
}
}
return response;
}, ref message));
}