private void ConfigureEnlistment(WsatRegistrationHeader header)
{
Enlistment enlistment = new Enlistment();
string contextId = header.ContextId;
if (contextId == null)
{
contextId = CoordinationContext.CreateNativeIdentifier(header.TransactionId);
}
enlistment.LocalTransactionId = header.TransactionId;
enlistment.RemoteTransactionId = contextId;
Notifications twoPhaseCommit = Notifications.TwoPhaseCommit;
switch (this.protocol)
{
case Microsoft.Transactions.Wsat.Messaging.ControlProtocol.Volatile2PC:
twoPhaseCommit |= Notifications.Volatile | Notifications.Phase0;
break;
case Microsoft.Transactions.Wsat.Messaging.ControlProtocol.Durable2PC:
break;
default:
Microsoft.Transactions.Bridge.DiagnosticUtility.FailFast("Invalid protocol");
break;
}
enlistment.NotificationMask = twoPhaseCommit;
enlistment.ProtocolProviderContext = this;
base.enlistment = enlistment;
}
public void MarshalAsCoordinationContext(Transaction transaction, out CoordinationContext context, out RequestSecurityTokenResponse issuedToken)
{
uint num;
IsolationFlags flags;
string str2;
WsatExtendedInformation information;
string str3;
Guid distributedIdentifier = transaction.TransactionInformation.DistributedIdentifier;
string contextId = null;
context = new CoordinationContext(this.protocolVersion);
OleTxTransactionFormatter.GetTransactionAttributes(transaction, out num, out flags, out str2);
context.IsolationFlags = flags;
context.Description = str2;
if (TransactionCache <Transaction, WsatExtendedInformation> .Find(transaction, out information))
{
context.Expires = information.Timeout;
if (!string.IsNullOrEmpty(information.Identifier))
{
context.Identifier = information.Identifier;
contextId = information.Identifier;
}
}
else
{
context.Expires = num;
if (context.Expires == 0)
{
context.Expires = (uint)TimeoutHelper.ToMilliseconds(this.wsatConfig.MaxTimeout);
}
}
if (context.Identifier == null)
{
context.Identifier = CoordinationContext.CreateNativeIdentifier(distributedIdentifier);
contextId = null;
}
if (!this.wsatConfig.IssuedTokensEnabled)
{
str3 = null;
issuedToken = null;
}
else
{
CoordinationServiceSecurity.CreateIssuedToken(distributedIdentifier, context.Identifier, this.protocolVersion, out issuedToken, out str3);
}
AddressHeader refParam = new WsatRegistrationHeader(distributedIdentifier, contextId, str3);
context.RegistrationService = this.wsatConfig.CreateRegistrationService(refParam, this.protocolVersion);
context.IsolationLevel = transaction.IsolationLevel;
context.LocalTransactionId = distributedIdentifier;
if (this.wsatConfig.OleTxUpgradeEnabled)
{
context.PropagationToken = TransactionInterop.GetTransmitterPropagationToken(transaction);
}
}
public ParticipantEnlistment(ProtocolState state, WsatRegistrationHeader header, Microsoft.Transactions.Wsat.Messaging.ControlProtocol protocol, TwoPhaseCommitParticipantProxy proxy) : base(state)
{
this.protocol = protocol;
proxy.AddRef();
this.participantProxy = proxy;
this.ConfigureEnlistment(header);
this.CreateCoordinatorService();
switch (protocol)
{
case Microsoft.Transactions.Wsat.Messaging.ControlProtocol.Volatile2PC:
base.stateMachine = new VolatileStateMachine(this);
base.stateMachine.ChangeState(state.States.VolatileRegistering);
return;
case Microsoft.Transactions.Wsat.Messaging.ControlProtocol.Durable2PC:
base.stateMachine = new DurableStateMachine(this);
base.stateMachine.ChangeState(state.States.DurableRegistering);
return;
}
Microsoft.Transactions.Bridge.DiagnosticUtility.FailFast("Invalid protocol");
}
//=======================================================================================
// The demand is not added now (in 4.5), to avoid a breaking change. To be considered in the next version.
/*
// We demand full trust because we use CoordinationContext and CoordinationServiceSecurity from a non-APTCA assembly.
// The CoordinationContext constructor can call Environment.FailFast and it's recommended to not let partially trusted callers to bring down the process.
// WSATs are not supported in partial trust, so customers should not be broken by this demand.
[PermissionSet(SecurityAction.Demand, Unrestricted = true)]
*/
public void MarshalAsCoordinationContext(Transaction transaction,
out CoordinationContext context,
out RequestSecurityTokenResponse issuedToken)
{
Guid transactionId = transaction.TransactionInformation.DistributedIdentifier;
string nonNativeContextId = null;
context = new CoordinationContext(this.protocolVersion);
// Get timeout, description and isolation flags
uint timeout;
IsolationFlags isoFlags;
string description;
OleTxTransactionFormatter.GetTransactionAttributes(transaction,
out timeout,
out isoFlags,
out description);
context.IsolationFlags = isoFlags;
context.Description = description;
// If we can, use cached extended information
// Note - it may be worth using outgoing contexts more than once.
// We'll let performance profiling decide that question
WsatExtendedInformation info;
if (WsatExtendedInformationCache.Find(transaction, out info))
{
context.Expires = info.Timeout;
// The extended info cache only contains an identifier when it's non-native
if (!string.IsNullOrEmpty(info.Identifier))
{
context.Identifier = info.Identifier;
nonNativeContextId = info.Identifier;
}
}
else
{
context.Expires = timeout;
if (context.Expires == 0)
{
// If the timeout is zero, there are two possibilities:
// 1) This is a root transaction with an infinite timeout.
// 2) This is a subordinate transaction whose timeout was not flowed.
// We have no mechanism for distinguishing between the two cases.
//
// We could always return zero here, instead of using the local max timeout.
// The problem is that the 2004/08 WS-C spec does not specify the meaning
// of a zero expires field. While we accept zero to mean "as large as possible"
// it would be risky to expect others to do the same. So we only propagate
// zero in the expires field if the local max timeout has been disabled.
//
// This is MB 34596: how can we flow the real timeout?
context.Expires = (uint)TimeoutHelper.ToMilliseconds(this.wsatConfig.MaxTimeout);
}
}
if (context.Identifier == null)
{
context.Identifier = CoordinationContext.CreateNativeIdentifier(transactionId);
nonNativeContextId = null;
}
string tokenId;
if (!this.wsatConfig.IssuedTokensEnabled)
{
tokenId = null;
issuedToken = null;
}
else
{
CoordinationServiceSecurity.CreateIssuedToken(transactionId,
context.Identifier,
this.protocolVersion,
out issuedToken,
out tokenId);
}
AddressHeader refParam = new WsatRegistrationHeader(transactionId, nonNativeContextId, tokenId);
context.RegistrationService = wsatConfig.CreateRegistrationService(refParam, this.protocolVersion);
context.IsolationLevel = transaction.IsolationLevel;
context.LocalTransactionId = transactionId;
if (this.wsatConfig.OleTxUpgradeEnabled)
{
context.PropagationToken = TransactionInterop.GetTransmitterPropagationToken(transaction);
}
}
private TransactionContext CreateTransactionContext()
{
Microsoft.Transactions.Bridge.EnlistmentOptions enlistmentOptions = this.enlistment.EnlistmentOptions;
string remoteTransactionId = this.enlistment.RemoteTransactionId;
Guid localTransactionId = this.enlistment.LocalTransactionId;
CoordinationContext context = new CoordinationContext(this.state.ProtocolVersion) {
Expires = (enlistmentOptions.Expires == TimeSpan.MaxValue) ? uint.MaxValue : ((uint) ((int) enlistmentOptions.Expires.TotalMilliseconds)),
Identifier = remoteTransactionId,
LocalTransactionId = localTransactionId,
IsolationLevel = enlistmentOptions.IsoLevel,
IsolationFlags = enlistmentOptions.IsolationFlags,
Description = enlistmentOptions.Description
};
string contextId = CoordinationContext.IsNativeIdentifier(remoteTransactionId, localTransactionId) ? null : remoteTransactionId;
string sctId = null;
RequestSecurityTokenResponse issuedToken = null;
if (this.state.Config.PortConfiguration.SupportingTokensEnabled)
{
CoordinationServiceSecurity.CreateIssuedToken(localTransactionId, remoteTransactionId, this.state.ProtocolVersion, out issuedToken, out sctId);
}
AddressHeader refParam = new WsatRegistrationHeader(localTransactionId, contextId, sctId);
context.RegistrationService = this.state.RegistrationCoordinatorListener.CreateEndpointReference(refParam);
return new TransactionContext(context, issuedToken);
}
//=======================================================================================
// The demand is not added now (in 4.5), to avoid a breaking change. To be considered in the next version.
/*
* // We demand full trust because we use CoordinationContext and CoordinationServiceSecurity from a non-APTCA assembly.
* // The CoordinationContext constructor can call Environment.FailFast and it's recommended to not let partially trusted callers to bring down the process.
* // WSATs are not supported in partial trust, so customers should not be broken by this demand.
* [PermissionSet(SecurityAction.Demand, Unrestricted = true)]
*/
public void MarshalAsCoordinationContext(Transaction transaction,
out CoordinationContext context,
out RequestSecurityTokenResponse issuedToken)
{
Guid transactionId = transaction.TransactionInformation.DistributedIdentifier;
string nonNativeContextId = null;
context = new CoordinationContext(this.protocolVersion);
// Get timeout, description and isolation flags
uint timeout;
IsolationFlags isoFlags;
string description;
OleTxTransactionFormatter.GetTransactionAttributes(transaction,
out timeout,
out isoFlags,
out description);
context.IsolationFlags = isoFlags;
context.Description = description;
// If we can, use cached extended information
// Note - it may be worth using outgoing contexts more than once.
// We'll let performance profiling decide that question
WsatExtendedInformation info;
if (WsatExtendedInformationCache.Find(transaction, out info))
{
context.Expires = info.Timeout;
// The extended info cache only contains an identifier when it's non-native
if (!string.IsNullOrEmpty(info.Identifier))
{
context.Identifier = info.Identifier;
nonNativeContextId = info.Identifier;
}
}
else
{
context.Expires = timeout;
if (context.Expires == 0)
{
// If the timeout is zero, there are two possibilities:
// 1) This is a root transaction with an infinite timeout.
// 2) This is a subordinate transaction whose timeout was not flowed.
// We have no mechanism for distinguishing between the two cases.
//
// We could always return zero here, instead of using the local max timeout.
// The problem is that the 2004/08 WS-C spec does not specify the meaning
// of a zero expires field. While we accept zero to mean "as large as possible"
// it would be risky to expect others to do the same. So we only propagate
// zero in the expires field if the local max timeout has been disabled.
//
// This is MB 34596: how can we flow the real timeout?
context.Expires = (uint)TimeoutHelper.ToMilliseconds(this.wsatConfig.MaxTimeout);
}
}
if (context.Identifier == null)
{
context.Identifier = CoordinationContext.CreateNativeIdentifier(transactionId);
nonNativeContextId = null;
}
string tokenId;
if (!this.wsatConfig.IssuedTokensEnabled)
{
tokenId = null;
issuedToken = null;
}
else
{
CoordinationServiceSecurity.CreateIssuedToken(transactionId,
context.Identifier,
this.protocolVersion,
out issuedToken,
out tokenId);
}
AddressHeader refParam = new WsatRegistrationHeader(transactionId, nonNativeContextId, tokenId);
context.RegistrationService = wsatConfig.CreateRegistrationService(refParam, this.protocolVersion);
context.IsolationLevel = transaction.IsolationLevel;
context.LocalTransactionId = transactionId;
if (this.wsatConfig.OleTxUpgradeEnabled)
{
context.PropagationToken = TransactionInterop.GetTransmitterPropagationToken(transaction);
}
}
public void MarshalAsCoordinationContext(Transaction transaction, out CoordinationContext context, out RequestSecurityTokenResponse issuedToken)
{
uint num;
IsolationFlags flags;
string str2;
WsatExtendedInformation information;
string str3;
Guid distributedIdentifier = transaction.TransactionInformation.DistributedIdentifier;
string contextId = null;
context = new CoordinationContext(this.protocolVersion);
OleTxTransactionFormatter.GetTransactionAttributes(transaction, out num, out flags, out str2);
context.IsolationFlags = flags;
context.Description = str2;
if (TransactionCache<Transaction, WsatExtendedInformation>.Find(transaction, out information))
{
context.Expires = information.Timeout;
if (!string.IsNullOrEmpty(information.Identifier))
{
context.Identifier = information.Identifier;
contextId = information.Identifier;
}
}
else
{
context.Expires = num;
if (context.Expires == 0)
{
context.Expires = (uint) TimeoutHelper.ToMilliseconds(this.wsatConfig.MaxTimeout);
}
}
if (context.Identifier == null)
{
context.Identifier = CoordinationContext.CreateNativeIdentifier(distributedIdentifier);
contextId = null;
}
if (!this.wsatConfig.IssuedTokensEnabled)
{
str3 = null;
issuedToken = null;
}
else
{
CoordinationServiceSecurity.CreateIssuedToken(distributedIdentifier, context.Identifier, this.protocolVersion, out issuedToken, out str3);
}
AddressHeader refParam = new WsatRegistrationHeader(distributedIdentifier, contextId, str3);
context.RegistrationService = this.wsatConfig.CreateRegistrationService(refParam, this.protocolVersion);
context.IsolationLevel = transaction.IsolationLevel;
context.LocalTransactionId = distributedIdentifier;
if (this.wsatConfig.OleTxUpgradeEnabled)
{
context.PropagationToken = TransactionInterop.GetTransmitterPropagationToken(transaction);
}
}
