public static void GetTransactionAttributes(Transaction transaction, out uint timeout, out IsolationFlags isoFlags, out string description)
{
XACTOPT xactopt;
XACTTRANSINFO xacttransinfo;
IDtcTransaction dtcTransaction = TransactionInterop.GetDtcTransaction(transaction);
ITransactionOptions options = (ITransactionOptions) dtcTransaction;
ISaneDtcTransaction transaction3 = (ISaneDtcTransaction) dtcTransaction;
options.GetOptions(out xactopt);
timeout = xactopt.ulTimeout;
description = xactopt.szDescription;
transaction3.GetTransactionInfo(out xacttransinfo);
isoFlags = xacttransinfo.isoFlags;
}
public Microsoft.Transactions.Bridge.EnlistmentOptions CreateEnlistmentOptions(uint expires, bool expiresPresent, IsolationLevel isoLevel, IsolationFlags isoFlags, string description)
{
Microsoft.Transactions.Bridge.EnlistmentOptions options = new Microsoft.Transactions.Bridge.EnlistmentOptions {
Expires = this.CalculateTimeout(expires, expiresPresent),
IsoLevel = isoLevel
};
if (options.IsoLevel == IsolationLevel.Unspecified)
{
options.IsoLevel = IsolationLevel.Serializable;
}
options.IsolationFlags = isoFlags;
options.Description = description;
return options;
}
public static void GetTransactionAttributes(Transaction transaction,
out uint timeout,
out IsolationFlags isoFlags,
out string description)
{
IDtcTransaction dtcTransaction = TransactionInterop.GetDtcTransaction(transaction);
ITransactionOptions transactionOptions = (ITransactionOptions)dtcTransaction;
ISaneDtcTransaction saneTransaction = (ISaneDtcTransaction)dtcTransaction;
XACTOPT options;
transactionOptions.GetOptions(out options);
// For transactions not created inside this process, this will be zero
timeout = options.ulTimeout;
description = options.szDescription;
XACTTRANSINFO info;
saneTransaction.GetTransactionInfo(out info);
isoFlags = info.isoFlags;
}
// This is what a propagation token looks like:
//
// struct PropagationToken
// {
// DWORD dwVersionMin;
// DWORD dwVersionMax;
// GUID guidTx;
// ISOLATIONLEVEL isoLevel;
// ISOFLAG isoFlags;
// ULONG cbSourceTmAddr;
// char szDesc[40];
// [etc]
// }
static byte[] MarshalPropagationToken(ref Guid transactionId,
IsolationLevel isoLevel,
IsolationFlags isoFlags,
string description)
{
const int offsetof_guidTx = 8;
const int offsetof_isoLevel = 24;
const int offsetof_isoFlags = 28;
const int offsetof_szDesc = 36;
const int MaxDescriptionLength = 39;
byte[] token = CreateFixedPropagationToken();
// Replace transaction id
byte[] transactionIdBytes = transactionId.ToByteArray();
Array.Copy(transactionIdBytes, 0, token, offsetof_guidTx, transactionIdBytes.Length);
// Replace isolation level
byte[] isoLevelBytes = BitConverter.GetBytes((int)ConvertIsolationLevel(isoLevel));
Array.Copy(isoLevelBytes, 0, token, offsetof_isoLevel, isoLevelBytes.Length);
// Replace isolation flags
byte[] isoFlagsBytes = BitConverter.GetBytes((int)isoFlags);
Array.Copy(isoFlagsBytes, 0, token, offsetof_isoFlags, isoFlagsBytes.Length);
// Replace description
if (!string.IsNullOrEmpty(description))
{
byte[] descriptionBytes = Encoding.UTF8.GetBytes(description);
int copyDescriptionBytes = Math.Min(descriptionBytes.Length, MaxDescriptionLength);
Array.Copy(descriptionBytes, 0, token, offsetof_szDesc, copyDescriptionBytes);
token[offsetof_szDesc + copyDescriptionBytes] = 0;
}
return(token);
}
public static void GetTransactionAttributes(Transaction transaction,
out uint timeout,
out IsolationFlags isoFlags,
out string description)
{
IDtcTransaction dtcTransaction = TransactionInterop.GetDtcTransaction(transaction);
ITransactionOptions transactionOptions = (ITransactionOptions)dtcTransaction;
ISaneDtcTransaction saneTransaction = (ISaneDtcTransaction)dtcTransaction;
XACTOPT options;
transactionOptions.GetOptions(out options);
// For transactions not created inside this process, this will be zero
timeout = options.ulTimeout;
description = options.szDescription;
XACTTRANSINFO info;
saneTransaction.GetTransactionInfo(out info);
isoFlags = info.isoFlags;
}
private static byte[] MarshalPropagationToken(ref Guid transactionId, IsolationLevel isoLevel, IsolationFlags isoFlags, string description)
{
byte[] destinationArray = CreateFixedPropagationToken();
byte[] sourceArray = transactionId.ToByteArray();
Array.Copy(sourceArray, 0, destinationArray, 8, sourceArray.Length);
byte[] bytes = BitConverter.GetBytes((int)ConvertIsolationLevel(isoLevel));
Array.Copy(bytes, 0, destinationArray, 0x18, bytes.Length);
byte[] buffer4 = BitConverter.GetBytes((int)isoFlags);
Array.Copy(buffer4, 0, destinationArray, 0x1c, buffer4.Length);
if (!string.IsNullOrEmpty(description))
{
byte[] buffer5 = Encoding.UTF8.GetBytes(description);
int length = Math.Min(buffer5.Length, 0x27);
Array.Copy(buffer5, 0, destinationArray, 0x24, length);
destinationArray[0x24 + length] = 0;
}
return(destinationArray);
}
public Microsoft.Transactions.Bridge.EnlistmentOptions CreateEnlistmentOptions(uint expires, bool expiresPresent, IsolationLevel isoLevel, IsolationFlags isoFlags, string description)
{
Microsoft.Transactions.Bridge.EnlistmentOptions options = new Microsoft.Transactions.Bridge.EnlistmentOptions {
Expires = this.CalculateTimeout(expires, expiresPresent),
IsoLevel = isoLevel
};
if (options.IsoLevel == IsolationLevel.Unspecified)
{
options.IsoLevel = IsolationLevel.Serializable;
}
options.IsolationFlags = isoFlags;
options.Description = description;
return(options);
}
public static void GetTransactionAttributes(Transaction transaction, out uint timeout, out IsolationFlags isoFlags, out string description)
{
XACTOPT xactopt;
XACTTRANSINFO xacttransinfo;
IDtcTransaction dtcTransaction = TransactionInterop.GetDtcTransaction(transaction);
ITransactionOptions options = (ITransactionOptions)dtcTransaction;
ISaneDtcTransaction transaction3 = (ISaneDtcTransaction)dtcTransaction;
options.GetOptions(out xactopt);
timeout = xactopt.ulTimeout;
description = xactopt.szDescription;
transaction3.GetTransactionInfo(out xacttransinfo);
isoFlags = xacttransinfo.isoFlags;
}
private static byte[] MarshalPropagationToken(ref Guid transactionId, IsolationLevel isoLevel, IsolationFlags isoFlags, string description)
{
byte[] destinationArray = CreateFixedPropagationToken();
byte[] sourceArray = transactionId.ToByteArray();
Array.Copy(sourceArray, 0, destinationArray, 8, sourceArray.Length);
byte[] bytes = BitConverter.GetBytes((int) ConvertIsolationLevel(isoLevel));
Array.Copy(bytes, 0, destinationArray, 0x18, bytes.Length);
byte[] buffer4 = BitConverter.GetBytes((int) isoFlags);
Array.Copy(buffer4, 0, destinationArray, 0x1c, buffer4.Length);
if (!string.IsNullOrEmpty(description))
{
byte[] buffer5 = Encoding.UTF8.GetBytes(description);
int length = Math.Min(buffer5.Length, 0x27);
Array.Copy(buffer5, 0, destinationArray, 0x24, length);
destinationArray[0x24 + length] = 0;
}
return destinationArray;
}
// This is what a propagation token looks like:
//
// struct PropagationToken
// {
// DWORD dwVersionMin;
// DWORD dwVersionMax;
// GUID guidTx;
// ISOLATIONLEVEL isoLevel;
// ISOFLAG isoFlags;
// ULONG cbSourceTmAddr;
// char szDesc[40];
// [etc]
// }
static byte[] MarshalPropagationToken(ref Guid transactionId,
IsolationLevel isoLevel,
IsolationFlags isoFlags,
string description)
{
const int offsetof_guidTx = 8;
const int offsetof_isoLevel = 24;
const int offsetof_isoFlags = 28;
const int offsetof_szDesc = 36;
const int MaxDescriptionLength = 39;
byte[] token = CreateFixedPropagationToken();
// Replace transaction id
byte[] transactionIdBytes = transactionId.ToByteArray();
Array.Copy(transactionIdBytes, 0, token, offsetof_guidTx, transactionIdBytes.Length);
// Replace isolation level
byte[] isoLevelBytes = BitConverter.GetBytes((int)ConvertIsolationLevel(isoLevel));
Array.Copy(isoLevelBytes, 0, token, offsetof_isoLevel, isoLevelBytes.Length);
// Replace isolation flags
byte[] isoFlagsBytes = BitConverter.GetBytes((int)isoFlags);
Array.Copy(isoFlagsBytes, 0, token, offsetof_isoFlags, isoFlagsBytes.Length);
// Replace description
if (!string.IsNullOrEmpty(description))
{
byte[] descriptionBytes = Encoding.UTF8.GetBytes(description);
int copyDescriptionBytes = Math.Min(descriptionBytes.Length, MaxDescriptionLength);
Array.Copy(descriptionBytes, 0, token, offsetof_szDesc, copyDescriptionBytes);
token[offsetof_szDesc + copyDescriptionBytes] = 0;
}
return token;
}
