public static WsrmFault ValidateTerminateSequenceResponse(ChannelReliableSession session, UniqueId messageId, WsrmMessageInfo info, long last)
{
string exceptionMessage = null;
string faultReason = null;
if (info.WsrmHeaderFault is UnknownSequenceFault)
{
return(null);
}
if (info.TerminateSequenceResponseInfo == null)
{
exceptionMessage = System.ServiceModel.SR.GetString("InvalidWsrmResponseSessionFaultedExceptionString", new object[] { "TerminateSequence", info.Action, "http://docs.oasis-open.org/ws-rx/wsrm/200702/TerminateSequenceResponse" });
faultReason = System.ServiceModel.SR.GetString("InvalidWsrmResponseSessionFaultedFaultString", new object[] { "TerminateSequence", info.Action, "http://docs.oasis-open.org/ws-rx/wsrm/200702/TerminateSequenceResponse" });
}
else if (!object.Equals(messageId, info.TerminateSequenceResponseInfo.RelatesTo))
{
exceptionMessage = System.ServiceModel.SR.GetString("WsrmMessageWithWrongRelatesToExceptionString", new object[] { "TerminateSequence" });
faultReason = System.ServiceModel.SR.GetString("WsrmMessageWithWrongRelatesToFaultString", new object[] { "TerminateSequence" });
}
else
{
return(ValidateFinalAck(session, info, last));
}
return(SequenceTerminatedFault.CreateProtocolFault(session.OutputID, faultReason, exceptionMessage));
}
void OnInactivityElapsed(object state)
{
WsrmFault fault;
Exception e;
string exceptionMessage = SR.GetString(SR.SequenceTerminatedInactivityTimeoutExceeded, this.settings.InactivityTimeout);
if (TD.InactivityTimeoutIsEnabled())
{
TD.InactivityTimeout(exceptionMessage);
}
if (this.SequenceID != null)
{
string faultReason = SR.GetString(SR.SequenceTerminatedInactivityTimeoutExceeded, this.settings.InactivityTimeout);
fault = SequenceTerminatedFault.CreateCommunicationFault(this.SequenceID, faultReason, exceptionMessage);
e = fault.CreateException();
}
else
{
fault = null;
e = new CommunicationException(exceptionMessage);
}
OnLocalFault(e, fault, null);
}
protected override WsrmFault ProcessRequestorResponse(ReliableRequestor requestor, string requestName, WsrmMessageInfo info)
{
string faultReason = System.ServiceModel.SR.GetString("ReceivedResponseBeforeRequestFaultString", new object[] { requestName });
string exceptionMessage = System.ServiceModel.SR.GetString("ReceivedResponseBeforeRequestExceptionString", new object[] { requestName });
return(SequenceTerminatedFault.CreateProtocolFault(base.ReliableSession.OutputID, faultReason, exceptionMessage));
}
bool InternalAddMessage(Message message, TimeSpan timeout, object state, bool isLast)
{
MessageAttemptInfo attemptInfo;
TimeoutHelper helper = new TimeoutHelper(timeout);
try
{
if (isLast)
{
if (state != null)
{
throw Fx.AssertAndThrow("The isLast overload does not take a state.");
}
attemptInfo = this.strategy.AddLast(message, helper.RemainingTime(), null);
}
else if (!this.strategy.Add(message, helper.RemainingTime(), state, out attemptInfo))
{
return(false);
}
}
catch (TimeoutException)
{
if (isLast)
{
this.RaiseFault(null, SequenceTerminatedFault.CreateCommunicationFault(this.id, SR.GetString(SR.SequenceTerminatedAddLastToWindowTimedOut), null));
}
// else - RM does not fault the channel based on a timeout exception trying to add a sequenced message to the window.
throw;
}
catch (Exception e)
{
if (!Fx.IsFatal(e))
{
this.RaiseFault(null, SequenceTerminatedFault.CreateCommunicationFault(this.id, SR.GetString(SR.SequenceTerminatedUnknownAddToWindowError), null));
}
throw;
}
if (sendGuard.Enter())
{
try
{
this.sendHandler(attemptInfo, helper.RemainingTime(), false);
}
catch (QuotaExceededException)
{
this.RaiseFault(null, SequenceTerminatedFault.CreateQuotaExceededFault(this.id));
throw;
}
finally
{
this.sendGuard.Exit();
}
}
return(true);
}
protected override WsrmFault ProcessRequestorResponse(ReliableRequestor requestor, string requestName, WsrmMessageInfo info)
{
string faultString = SR.Format(SR.ReceivedResponseBeforeRequestFaultString, requestName);
string exceptionString = SR.Format(SR.ReceivedResponseBeforeRequestExceptionString, requestName);
return(SequenceTerminatedFault.CreateProtocolFault(ReliableSession.OutputID, faultString, exceptionString));
}
protected override WsrmFault VerifySimplexProtocolElements(WsrmMessageInfo info)
{
if ((info.AcknowledgementInfo != null) && (info.AcknowledgementInfo.SequenceID != base.OutputID))
{
return(new UnknownSequenceFault(info.AcknowledgementInfo.SequenceID));
}
if (info.AckRequestedInfo != null)
{
return(SequenceTerminatedFault.CreateProtocolFault(base.OutputID, System.ServiceModel.SR.GetString("SequenceTerminatedUnexpectedAckRequested"), System.ServiceModel.SR.GetString("UnexpectedAckRequested")));
}
if (info.CreateSequenceInfo != null)
{
return(SequenceTerminatedFault.CreateProtocolFault(base.OutputID, System.ServiceModel.SR.GetString("SequenceTerminatedUnexpectedCS"), System.ServiceModel.SR.GetString("UnexpectedCS")));
}
if (info.SequencedMessageInfo != null)
{
return(new UnknownSequenceFault(info.SequencedMessageInfo.SequenceID));
}
if (info.TerminateSequenceInfo != null)
{
if (base.Settings.ReliableMessagingVersion == ReliableMessagingVersion.WSReliableMessagingFebruary2005)
{
return(SequenceTerminatedFault.CreateProtocolFault(base.OutputID, System.ServiceModel.SR.GetString("SequenceTerminatedUnexpectedTerminateSequence"), System.ServiceModel.SR.GetString("UnexpectedTerminateSequence")));
}
if (info.TerminateSequenceInfo.Identifier == base.OutputID)
{
return(null);
}
return(new UnknownSequenceFault(info.TerminateSequenceInfo.Identifier));
}
if (info.TerminateSequenceResponseInfo != null)
{
WsrmUtilities.AssertWsrm11(base.Settings.ReliableMessagingVersion);
if (info.TerminateSequenceResponseInfo.Identifier == base.OutputID)
{
return(null);
}
return(new UnknownSequenceFault(info.TerminateSequenceResponseInfo.Identifier));
}
if (info.CloseSequenceInfo != null)
{
WsrmUtilities.AssertWsrm11(base.Settings.ReliableMessagingVersion);
if (info.CloseSequenceInfo.Identifier == base.OutputID)
{
return(SequenceTerminatedFault.CreateProtocolFault(base.OutputID, System.ServiceModel.SR.GetString("SequenceTerminatedUnsupportedClose"), System.ServiceModel.SR.GetString("UnsupportedCloseExceptionString")));
}
return(new UnknownSequenceFault(info.CloseSequenceInfo.Identifier));
}
if (info.CloseSequenceResponseInfo == null)
{
return(null);
}
WsrmUtilities.AssertWsrm11(base.Settings.ReliableMessagingVersion);
if (info.CloseSequenceResponseInfo.Identifier == base.OutputID)
{
return(null);
}
return(new UnknownSequenceFault(info.CloseSequenceResponseInfo.Identifier));
}
public virtual void Abort()
{
this.guard.Abort();
this.inactivityTimer.Abort();
// Try to send a fault.
bool sendFault;
lock (this.ThisLock)
{
// Faulted thread already cleaned up. No need to to anything more.
if (this.faulted == SessionFaultState.CleanedUp)
{
return;
}
// Can only send a fault if the other side did not send one already.
sendFault = this.canSendFault && (this.faulted != SessionFaultState.RemotelyFaulted); // NotFaulted || LocallyFaulted
this.faulted = SessionFaultState.CleanedUp;
}
if (sendFault)
{
if ((this.binder.State == CommunicationState.Opened) &&
this.binder.Connected &&
(this.binder.CanSendAsynchronously || (this.replyFaultContext != null)))
{
if (this.terminatingFault == null)
{
UniqueId sequenceId = this.InputID ?? this.OutputID;
if (sequenceId != null)
{
WsrmFault fault = SequenceTerminatedFault.CreateCommunicationFault(sequenceId, SR.GetString(SR.SequenceTerminatedOnAbort), null);
this.terminatingFault = fault.CreateMessage(this.settings.MessageVersion,
this.settings.ReliableMessagingVersion);
}
}
if (this.terminatingFault != null)
{
this.AddFinalRanges();
this.faultHelper.SendFaultAsync(this.binder, this.replyFaultContext, this.terminatingFault);
return;
}
}
}
// Got here so the session did not actually send a fault, must clean up resources.
if (this.terminatingFault != null)
{
this.terminatingFault.Close();
}
if (this.replyFaultContext != null)
{
this.replyFaultContext.Abort();
}
this.binder.Abort();
}
public AddAsyncResult(Message message, bool isLast, TimeSpan timeout, object state,
ReliableOutputConnection connection, AsyncCallback callback, object asyncState)
: base(callback, asyncState)
{
this.connection = connection;
this.timeoutHelper = new TimeoutHelper(timeout);
this.isLast = isLast;
bool complete = false;
IAsyncResult result;
try
{
if (isLast)
{
if (state != null)
{
throw Fx.AssertAndThrow("The isLast overload does not take a state.");
}
result = this.connection.strategy.BeginAddLast(message, this.timeoutHelper.RemainingTime(), state, addCompleteStatic, this);
}
else
{
result = this.connection.strategy.BeginAdd(message, this.timeoutHelper.RemainingTime(), state, addCompleteStatic, this);
}
}
catch (TimeoutException)
{
if (isLast)
{
this.connection.RaiseFault(null, SequenceTerminatedFault.CreateCommunicationFault(this.connection.id, SR.GetString(SR.SequenceTerminatedAddLastToWindowTimedOut), null));
}
// else - RM does not fault the channel based on a timeout exception trying to add a sequenced message to the window.
throw;
}
catch (Exception e)
{
if (!Fx.IsFatal(e))
{
this.connection.RaiseFault(null, SequenceTerminatedFault.CreateCommunicationFault(this.connection.id, SR.GetString(SR.SequenceTerminatedUnknownAddToWindowError), null));
}
throw;
}
if (result.CompletedSynchronously)
{
complete = this.CompleteAdd(result);
}
if (complete)
{
this.Complete(true);
}
}
void OnConnectionSend(MessageAttemptInfo attemptInfo, TimeSpan timeout, bool maskUnhandledException)
{
using (attemptInfo.Message)
{
if (attemptInfo.RetryCount > this.settings.MaxRetryCount)
{
if (TD.MaxRetryCyclesExceededIsEnabled())
{
TD.MaxRetryCyclesExceeded(SR.GetString(SR.MaximumRetryCountExceeded));
}
this.session.OnLocalFault(new CommunicationException(SR.GetString(SR.MaximumRetryCountExceeded), this.maxRetryCountException),
SequenceTerminatedFault.CreateMaxRetryCountExceededFault(this.session.OutputID), null);
return;
}
this.AddAcknowledgementHeader(attemptInfo.Message, false);
this.session.OnLocalActivity();
Message reply = null;
MaskingMode maskingMode = maskUnhandledException ? MaskingMode.Unhandled : MaskingMode.None;
if (attemptInfo.RetryCount < this.settings.MaxRetryCount)
{
maskingMode |= MaskingMode.Handled;
reply = this.binder.Request(attemptInfo.Message, timeout, maskingMode);
}
else
{
try
{
reply = this.binder.Request(attemptInfo.Message, timeout, maskingMode);
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
if (this.binder.IsHandleable(e))
{
this.maxRetryCountException = e;
}
else
{
throw;
}
}
}
if (reply != null)
{
ProcessReply(reply, (IReliableRequest)attemptInfo.State, attemptInfo.GetSequenceNumber());
}
}
}
private async Task OnConnectionSendAsync(MessageAttemptInfo attemptInfo, TimeSpan timeout, bool maskUnhandledException)
{
using (attemptInfo.Message)
{
if (attemptInfo.RetryCount > settings.MaxRetryCount)
{
if (WcfEventSource.Instance.MaxRetryCyclesExceededIsEnabled())
{
WcfEventSource.Instance.MaxRetryCyclesExceeded(SR.MaximumRetryCountExceeded);
}
session.OnLocalFault(new CommunicationException(SR.MaximumRetryCountExceeded, maxRetryCountException),
SequenceTerminatedFault.CreateMaxRetryCountExceededFault(session.OutputID), null);
return;
}
AddAcknowledgementHeader(attemptInfo.Message, false);
session.OnLocalActivity();
Message reply = null;
MaskingMode maskingMode = maskUnhandledException ? MaskingMode.Unhandled : MaskingMode.None;
if (attemptInfo.RetryCount < settings.MaxRetryCount)
{
maskingMode |= MaskingMode.Handled;
reply = await binder.RequestAsync(attemptInfo.Message, timeout, maskingMode);
}
else
{
try
{
reply = await binder.RequestAsync(attemptInfo.Message, timeout, maskingMode);
}
catch (Exception e)
{
if (Fx.IsFatal(e))
{
throw;
}
if (binder.IsHandleable(e))
{
maxRetryCountException = e;
}
else
{
throw;
}
}
}
if (reply != null)
{
ProcessReply(reply, (IReliableRequest)attemptInfo.State, attemptInfo.GetSequenceNumber());
}
}
}
public static WsrmFault ValidateFinalAckExists(ChannelReliableSession session, WsrmAcknowledgmentInfo ackInfo)
{
if ((ackInfo != null) && ackInfo.Final)
{
return(null);
}
string exceptionMessage = System.ServiceModel.SR.GetString("MissingFinalAckExceptionString");
string faultReason = System.ServiceModel.SR.GetString("SequenceTerminatedMissingFinalAck");
return(SequenceTerminatedFault.CreateProtocolFault(session.OutputID, faultReason, exceptionMessage));
}
private bool InternalAddMessage(Message message, TimeSpan timeout, object state, bool isLast)
{
MessageAttemptInfo info;
TimeoutHelper helper = new TimeoutHelper(timeout);
try
{
if (isLast)
{
if (state != null)
{
throw Fx.AssertAndThrow("The isLast overload does not take a state.");
}
info = this.strategy.AddLast(message, helper.RemainingTime(), null);
}
else if (!this.strategy.Add(message, helper.RemainingTime(), state, out info))
{
return(false);
}
}
catch (TimeoutException)
{
if (isLast)
{
this.RaiseFault(null, SequenceTerminatedFault.CreateCommunicationFault(this.id, System.ServiceModel.SR.GetString("SequenceTerminatedAddLastToWindowTimedOut"), null));
}
throw;
}
catch (Exception exception)
{
if (!Fx.IsFatal(exception))
{
this.RaiseFault(null, SequenceTerminatedFault.CreateCommunicationFault(this.id, System.ServiceModel.SR.GetString("SequenceTerminatedUnknownAddToWindowError"), null));
}
throw;
}
if (this.sendGuard.Enter())
{
try
{
this.sendHandler(info, helper.RemainingTime(), false);
}
catch (QuotaExceededException)
{
this.RaiseFault(null, SequenceTerminatedFault.CreateQuotaExceededFault(this.id));
throw;
}
finally
{
this.sendGuard.Exit();
}
}
return(true);
}
private void OnBinderException(IReliableChannelBinder sender, Exception exception)
{
if (exception is QuotaExceededException)
{
this.session.OnLocalFault(exception, SequenceTerminatedFault.CreateQuotaExceededFault(this.session.OutputID), null);
}
else
{
base.EnqueueAndDispatch(exception, null, false);
}
}
protected override WsrmFault ProcessRequestorResponse(ReliableRequestor requestor, string requestName, WsrmMessageInfo info)
{
if (requestor != null)
{
requestor.SetInfo(info);
return(null);
}
else
{
string faultString = SR.GetString(SR.ReceivedResponseBeforeRequestFaultString, requestName);
string exceptionString = SR.GetString(SR.ReceivedResponseBeforeRequestExceptionString, requestName);
return(SequenceTerminatedFault.CreateProtocolFault(this.ReliableSession.OutputID, faultString, exceptionString));
}
}
private void OnBinderException(IReliableChannelBinder sender, Exception exception)
{
if (exception is QuotaExceededException)
{
if (((base.State == CommunicationState.Opening) || (base.State == CommunicationState.Opened)) || (base.State == CommunicationState.Closing))
{
this.session.OnLocalFault(exception, SequenceTerminatedFault.CreateQuotaExceededFault(this.session.OutputID), null);
}
}
else
{
base.AddPendingException(exception);
}
}
public AddAsyncResult(Message message, bool isLast, TimeSpan timeout, object state, ReliableOutputConnection connection, AsyncCallback callback, object asyncState) : base(callback, asyncState)
{
IAsyncResult result;
this.connection = connection;
this.timeoutHelper = new TimeoutHelper(timeout);
this.isLast = isLast;
bool flag = false;
try
{
if (isLast)
{
if (state != null)
{
throw Fx.AssertAndThrow("The isLast overload does not take a state.");
}
result = this.connection.strategy.BeginAddLast(message, this.timeoutHelper.RemainingTime(), state, addCompleteStatic, this);
}
else
{
result = this.connection.strategy.BeginAdd(message, this.timeoutHelper.RemainingTime(), state, addCompleteStatic, this);
}
}
catch (TimeoutException)
{
if (isLast)
{
this.connection.RaiseFault(null, SequenceTerminatedFault.CreateCommunicationFault(this.connection.id, System.ServiceModel.SR.GetString("SequenceTerminatedAddLastToWindowTimedOut"), null));
}
throw;
}
catch (Exception exception)
{
if (!Fx.IsFatal(exception))
{
this.connection.RaiseFault(null, SequenceTerminatedFault.CreateCommunicationFault(this.connection.id, System.ServiceModel.SR.GetString("SequenceTerminatedUnknownAddToWindowError"), null));
}
throw;
}
if (result.CompletedSynchronously)
{
flag = this.CompleteAdd(result);
}
if (flag)
{
base.Complete(true);
}
}
private void CompleteSend(IAsyncResult result)
{
try
{
this.connection.endSendHandler(result);
}
catch (QuotaExceededException)
{
this.connection.RaiseFault(null, SequenceTerminatedFault.CreateQuotaExceededFault(this.connection.id));
throw;
}
finally
{
this.connection.sendGuard.Exit();
}
}
public static bool ValidateWsrmRequest(ChannelReliableSession session, WsrmRequestInfo info, IReliableChannelBinder binder, RequestContext context)
{
if (!(info is CloseSequenceInfo) && !(info is TerminateSequenceInfo))
{
throw Fx.AssertAndThrow("Method is meant for CloseSequence or TerminateSequence only.");
}
if (info.ReplyTo.Uri != binder.RemoteAddress.Uri)
{
string faultReason = System.ServiceModel.SR.GetString("WsrmRequestIncorrectReplyToFaultString", new object[] { info.RequestName });
string exceptionMessage = System.ServiceModel.SR.GetString("WsrmRequestIncorrectReplyToExceptionString", new object[] { info.RequestName });
WsrmFault fault = SequenceTerminatedFault.CreateProtocolFault(session.InputID, faultReason, exceptionMessage);
session.OnLocalFault(fault.CreateException(), fault, context);
return(false);
}
return(true);
}
IAsyncResult OnConnectionBeginSendHandler(MessageAttemptInfo attemptInfo, TimeSpan timeout, bool maskUnhandledException, AsyncCallback callback, object state)
{
if (attemptInfo.RetryCount > this.settings.MaxRetryCount)
{
if (TD.MaxRetryCyclesExceededIsEnabled())
{
TD.MaxRetryCyclesExceeded(SR.GetString(SR.MaximumRetryCountExceeded));
}
this.session.OnLocalFault(new CommunicationException(SR.GetString(SR.MaximumRetryCountExceeded), this.maxRetryCountException),
SequenceTerminatedFault.CreateMaxRetryCountExceededFault(this.session.OutputID), null);
return(new CompletedAsyncResult(callback, state));
}
else
{
this.session.OnLocalActivity();
return(this.OnConnectionBeginSend(attemptInfo, timeout, maskUnhandledException, callback, state));
}
}
protected override WsrmFault VerifyDuplexProtocolElements(WsrmMessageInfo info)
{
WsrmFault fault = base.VerifyDuplexProtocolElements(info);
if (fault != null)
{
return(fault);
}
if ((info.CreateSequenceInfo != null) && (info.CreateSequenceInfo.OfferIdentifier != base.OutputID))
{
return(SequenceTerminatedFault.CreateProtocolFault(base.OutputID, System.ServiceModel.SR.GetString("SequenceTerminatedUnexpectedCSOfferId"), System.ServiceModel.SR.GetString("UnexpectedCSOfferId")));
}
if (info.CreateSequenceResponseInfo != null)
{
return(SequenceTerminatedFault.CreateProtocolFault(base.OutputID, System.ServiceModel.SR.GetString("SequenceTerminatedUnexpectedCSR"), System.ServiceModel.SR.GetString("UnexpectedCSR")));
}
return(null);
}
private void OnInactivityElapsed(object state)
{
WsrmFault fault;
Exception exception;
string exceptionMessage = System.ServiceModel.SR.GetString("SequenceTerminatedInactivityTimeoutExceeded", new object[] { this.settings.InactivityTimeout });
if (this.SequenceID != null)
{
string faultReason = System.ServiceModel.SR.GetString("SequenceTerminatedInactivityTimeoutExceeded", new object[] { this.settings.InactivityTimeout });
fault = SequenceTerminatedFault.CreateCommunicationFault(this.SequenceID, faultReason, exceptionMessage);
exception = fault.CreateException();
}
else
{
fault = null;
exception = new CommunicationException(exceptionMessage);
}
this.OnLocalFault(exception, fault, null);
}
public virtual void Abort()
{
bool flag;
this.guard.Abort();
this.inactivityTimer.Abort();
lock (this.ThisLock)
{
if (this.faulted == SessionFaultState.CleanedUp)
{
return;
}
flag = this.canSendFault && (this.faulted != SessionFaultState.RemotelyFaulted);
this.faulted = SessionFaultState.CleanedUp;
}
if (((flag && (this.binder.State == CommunicationState.Opened)) && this.binder.Connected) && (this.binder.CanSendAsynchronously || (this.replyFaultContext != null)))
{
if (this.terminatingFault == null)
{
UniqueId sequenceID = this.InputID ?? this.OutputID;
if (sequenceID != null)
{
this.terminatingFault = SequenceTerminatedFault.CreateCommunicationFault(sequenceID, System.ServiceModel.SR.GetString("SequenceTerminatedOnAbort"), null).CreateMessage(this.settings.MessageVersion, this.settings.ReliableMessagingVersion);
}
}
if (this.terminatingFault != null)
{
this.AddFinalRanges();
this.faultHelper.SendFaultAsync(this.binder, this.replyFaultContext, this.terminatingFault);
return;
}
}
if (this.terminatingFault != null)
{
this.terminatingFault.Close();
}
if (this.replyFaultContext != null)
{
this.replyFaultContext.Abort();
}
this.binder.Abort();
}
private async Task OnConnectionSendAsyncHandler(MessageAttemptInfo attemptInfo, TimeSpan timeout, bool maskUnhandledException)
{
using (attemptInfo.Message)
{
if (attemptInfo.RetryCount > Settings.MaxRetryCount)
{
if (WcfEventSource.Instance.MaxRetryCyclesExceededIsEnabled())
{
WcfEventSource.Instance.MaxRetryCyclesExceeded(SR.MaximumRetryCountExceeded);
}
_session.OnLocalFault(new CommunicationException(SR.MaximumRetryCountExceeded, _maxRetryCountException),
SequenceTerminatedFault.CreateMaxRetryCountExceededFault(_session.OutputID), null);
}
else
{
_session.OnLocalActivity();
await OnConnectionSendAsync(attemptInfo.Message, timeout,
(attemptInfo.RetryCount == Settings.MaxRetryCount), maskUnhandledException);
}
}
}
void OnConnectionSendHandler(MessageAttemptInfo attemptInfo, TimeSpan timeout, bool maskUnhandledException)
{
using (attemptInfo.Message)
{
if (attemptInfo.RetryCount > this.settings.MaxRetryCount)
{
if (TD.MaxRetryCyclesExceededIsEnabled())
{
TD.MaxRetryCyclesExceeded(SR.GetString(SR.MaximumRetryCountExceeded));
}
this.session.OnLocalFault(new CommunicationException(SR.GetString(SR.MaximumRetryCountExceeded), this.maxRetryCountException),
SequenceTerminatedFault.CreateMaxRetryCountExceededFault(this.session.OutputID), null);
}
else
{
this.session.OnLocalActivity();
OnConnectionSend(attemptInfo.Message, timeout,
(attemptInfo.RetryCount == this.settings.MaxRetryCount), maskUnhandledException);
}
}
}
protected override WsrmFault VerifyDuplexProtocolElements(WsrmMessageInfo info)
{
WsrmFault fault = base.VerifyDuplexProtocolElements(info);
if (fault != null)
{
return(fault);
}
else if (info.CreateSequenceInfo != null && info.CreateSequenceInfo.OfferIdentifier != this.OutputID)
{
return(SequenceTerminatedFault.CreateProtocolFault(this.OutputID, SR.GetString(SR.SequenceTerminatedUnexpectedCSOfferId), SR.GetString(SR.UnexpectedCSOfferId)));
}
else if (info.CreateSequenceResponseInfo != null)
{
return(SequenceTerminatedFault.CreateProtocolFault(this.OutputID, SR.GetString(SR.SequenceTerminatedUnexpectedCSR), SR.GetString(SR.UnexpectedCSR)));
}
else
{
return(null);
}
}
private void ThrowIfCloseInvalid()
{
bool flag = false;
if (this.listener.ReliableMessagingVersion == ReliableMessagingVersion.WSReliableMessagingFebruary2005)
{
if ((this.DeliveryStrategy.EnqueuedCount > 0) || (this.Connection.Ranges.Count > 1))
{
flag = true;
}
}
else if ((this.listener.ReliableMessagingVersion == ReliableMessagingVersion.WSReliableMessaging11) && (this.DeliveryStrategy.EnqueuedCount > 0))
{
flag = true;
}
if (flag)
{
WsrmFault fault = SequenceTerminatedFault.CreateProtocolFault(this.session.InputID, System.ServiceModel.SR.GetString("SequenceTerminatedSessionClosedBeforeDone"), System.ServiceModel.SR.GetString("SessionClosedBeforeDone"));
this.session.OnLocalFault(null, fault, null);
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(fault.CreateException());
}
}
IAsyncResult OnConnectionBeginSend(MessageAttemptInfo attemptInfo, TimeSpan timeout,
bool maskUnhandledException, AsyncCallback callback, object state)
{
if (attemptInfo.RetryCount > this.settings.MaxRetryCount)
{
if (TD.MaxRetryCyclesExceededIsEnabled())
{
TD.MaxRetryCyclesExceeded(SR.GetString(SR.MaximumRetryCountExceeded));
}
this.session.OnLocalFault(new CommunicationException(SR.GetString(SR.MaximumRetryCountExceeded), this.maxRetryCountException),
SequenceTerminatedFault.CreateMaxRetryCountExceededFault(this.session.OutputID), null);
return(new CompletedAsyncResult(callback, state));
}
else
{
this.session.OnLocalActivity();
this.AddAcknowledgementHeader(attemptInfo.Message, false);
ReliableBinderRequestAsyncResult result = new ReliableBinderRequestAsyncResult(callback, state);
result.Binder = this.binder;
result.MessageAttemptInfo = attemptInfo;
result.MaskingMode = maskUnhandledException ? MaskingMode.Unhandled : MaskingMode.None;
if (attemptInfo.RetryCount < this.settings.MaxRetryCount)
{
result.MaskingMode |= MaskingMode.Handled;
result.SaveHandledException = false;
}
else
{
result.SaveHandledException = true;
}
result.Begin(timeout);
return(result);
}
}
void ProcessReply(Message reply, IReliableRequest request, Int64 requestSequenceNumber)
{
WsrmMessageInfo messageInfo = WsrmMessageInfo.Get(this.settings.MessageVersion,
this.settings.ReliableMessagingVersion, this.binder.Channel, this.binder.GetInnerSession(), reply);
if (!this.session.ProcessInfo(messageInfo, null))
{
return;
}
if (!this.session.VerifyDuplexProtocolElements(messageInfo, null))
{
return;
}
bool wsrm11 = this.settings.ReliableMessagingVersion == ReliableMessagingVersion.WSReliableMessaging11;
if (messageInfo.WsrmHeaderFault != null)
{
// Close message now, going to stop processing in all cases.
messageInfo.Message.Close();
if (!(messageInfo.WsrmHeaderFault is UnknownSequenceFault))
{
throw Fx.AssertAndThrow("Fault must be UnknownSequence fault.");
}
if (this.terminateRequestor == null)
{
throw Fx.AssertAndThrow("If we start getting UnknownSequence, terminateRequestor cannot be null.");
}
this.terminateRequestor.SetInfo(messageInfo);
return;
}
if (messageInfo.AcknowledgementInfo == null)
{
WsrmFault fault = SequenceTerminatedFault.CreateProtocolFault(this.session.InputID,
SR.GetString(SR.SequenceTerminatedReplyMissingAcknowledgement),
SR.GetString(SR.ReplyMissingAcknowledgement));
messageInfo.Message.Close();
this.session.OnLocalFault(fault.CreateException(), fault, null);
return;
}
if (wsrm11 && (messageInfo.TerminateSequenceInfo != null))
{
UniqueId faultId = (messageInfo.TerminateSequenceInfo.Identifier == this.session.OutputID)
? this.session.InputID
: this.session.OutputID;
WsrmFault fault = SequenceTerminatedFault.CreateProtocolFault(faultId,
SR.GetString(SR.SequenceTerminatedUnsupportedTerminateSequence),
SR.GetString(SR.UnsupportedTerminateSequenceExceptionString));
messageInfo.Message.Close();
this.session.OnLocalFault(fault.CreateException(), fault, null);
return;
}
else if (wsrm11 && messageInfo.AcknowledgementInfo.Final)
{
// Close message now, going to stop processing in all cases.
messageInfo.Message.Close();
if (this.closeRequestor == null)
{
// Remote endpoint signaled Close, this is not allowed so we fault.
string exceptionString = SR.GetString(SR.UnsupportedCloseExceptionString);
string faultString = SR.GetString(SR.SequenceTerminatedUnsupportedClose);
WsrmFault fault = SequenceTerminatedFault.CreateProtocolFault(this.session.OutputID, faultString,
exceptionString);
this.session.OnLocalFault(fault.CreateException(), fault, null);
}
else
{
WsrmFault fault = WsrmUtilities.ValidateFinalAck(this.session, messageInfo, this.connection.Last);
if (fault == null)
{
// Received valid final ack after sending Close, inform the close thread.
this.closeRequestor.SetInfo(messageInfo);
}
else
{
// Received invalid final ack after sending Close, fault.
this.session.OnLocalFault(fault.CreateException(), fault, null);
}
}
return;
}
int bufferRemaining = -1;
if (this.settings.FlowControlEnabled)
{
bufferRemaining = messageInfo.AcknowledgementInfo.BufferRemaining;
}
// We accept no more than MaxSequenceRanges ranges to limit the serialized ack size and
// the amount of memory taken up by the ack ranges. Since request reply uses the presence of
// a reply as an acknowledgement we cannot call ProcessTransferred (which stops retrying the
// request) if we intend to drop the message. This means the limit is not strict since we do
// not check for the limit and merge the ranges atomically. The limit + the number of
// concurrent threads is a sufficient mitigation.
if ((messageInfo.SequencedMessageInfo != null) &&
!ReliableInputConnection.CanMerge(messageInfo.SequencedMessageInfo.SequenceNumber, this.ranges))
{
messageInfo.Message.Close();
return;
}
bool exitGuard = this.replyAckConsistencyGuard != null?this.replyAckConsistencyGuard.Enter() : false;
try
{
this.connection.ProcessTransferred(requestSequenceNumber,
messageInfo.AcknowledgementInfo.Ranges, bufferRemaining);
this.session.OnRemoteActivity(this.connection.Strategy.QuotaRemaining == 0);
if (messageInfo.SequencedMessageInfo != null)
{
lock (this.ThisLock)
{
this.ranges = this.ranges.MergeWith(messageInfo.SequencedMessageInfo.SequenceNumber);
}
}
}
finally
{
if (exitGuard)
{
this.replyAckConsistencyGuard.Exit();
}
}
if (request != null)
{
if (WsrmUtilities.IsWsrmAction(this.settings.ReliableMessagingVersion, messageInfo.Action))
{
messageInfo.Message.Close();
request.Set(null);
}
else
{
request.Set(messageInfo.Message);
}
}
// The termination mechanism in the TerminateSequence fails with RequestReply.
// Since the ack ranges are updated after ProcessTransferred is called and
// ProcessTransferred potentially signals the Termination process, this channel
// winds up sending a message with the ack for last message missing.
// Thus we send the termination after we update the ranges.
if ((this.shutdownHandle != null) && this.connection.CheckForTermination())
{
this.shutdownHandle.Set();
}
if (request != null)
{
request.Complete();
}
}
public Message WaitForReply(TimeSpan timeout)
{
bool throwing = true;
try
{
bool expired = false;
if (!this.completed)
{
bool wait = false;
lock (this.ThisLock)
{
if (!this.completed)
{
wait = true;
this.completedHandle = new ManualResetEvent(false);
}
}
if (wait)
{
expired = !TimeoutHelper.WaitOne(this.completedHandle, timeout);
lock (this.ThisLock)
{
if (!this.completed)
{
this.completed = true;
}
else
{
expired = false;
}
}
this.completedHandle.Close();
}
}
if (this.aborted)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(this.parent.CreateClosedException());
}
else if (this.faulted)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(this.parent.GetTerminalException());
}
else if (expired)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new TimeoutException(SR.GetString(SR.TimeoutOnRequest, this.originalTimeout)));
}
else
{
throwing = false;
return(this.reply);
}
}
finally
{
if (throwing)
{
WsrmFault fault = SequenceTerminatedFault.CreateCommunicationFault(this.parent.session.InputID,
SR.GetString(SR.SequenceTerminatedReliableRequestThrew), null);
this.parent.session.OnLocalFault(null, fault, null);
if (this.completedHandle != null)
{
this.completedHandle.Close();
}
}
}
}
protected async Task ProcessMessageAsync(Message message)
{
bool closeMessage = true;
WsrmMessageInfo messageInfo = WsrmMessageInfo.Get(Settings.MessageVersion,
Settings.ReliableMessagingVersion, _binder.Channel, _binder.GetInnerSession(), message);
bool wsrm11 = Settings.ReliableMessagingVersion == ReliableMessagingVersion.WSReliableMessaging11;
try
{
if (!_session.ProcessInfo(messageInfo, null))
{
closeMessage = false;
return;
}
if (!ReliableSession.VerifySimplexProtocolElements(messageInfo, null))
{
closeMessage = false;
return;
}
bool final = false;
if (messageInfo.AcknowledgementInfo != null)
{
final = wsrm11 && messageInfo.AcknowledgementInfo.Final;
int bufferRemaining = -1;
if (Settings.FlowControlEnabled)
{
bufferRemaining = messageInfo.AcknowledgementInfo.BufferRemaining;
}
Connection.ProcessTransferred(messageInfo.AcknowledgementInfo.Ranges, bufferRemaining);
}
if (wsrm11)
{
WsrmFault fault = null;
if (messageInfo.TerminateSequenceResponseInfo != null)
{
fault = WsrmUtilities.ValidateTerminateSequenceResponse(_session,
_terminateRequestor.MessageId, messageInfo, Connection.Last);
if (fault == null)
{
fault = ProcessRequestorResponse(_terminateRequestor, WsrmFeb2005Strings.TerminateSequence, messageInfo);
}
}
else if (messageInfo.CloseSequenceResponseInfo != null)
{
fault = WsrmUtilities.ValidateCloseSequenceResponse(_session,
_closeRequestor.MessageId, messageInfo, Connection.Last);
if (fault == null)
{
fault = ProcessRequestorResponse(_closeRequestor, Wsrm11Strings.CloseSequence, messageInfo);
}
}
else if (messageInfo.TerminateSequenceInfo != null)
{
if (!WsrmUtilities.ValidateWsrmRequest(_session, messageInfo.TerminateSequenceInfo, _binder, null))
{
return;
}
WsrmAcknowledgmentInfo ackInfo = messageInfo.AcknowledgementInfo;
fault = WsrmUtilities.ValidateFinalAckExists(_session, ackInfo);
if ((fault == null) && !Connection.IsFinalAckConsistent(ackInfo.Ranges))
{
fault = new InvalidAcknowledgementFault(_session.OutputID, ackInfo.Ranges);
}
if (fault == null)
{
Message response = WsrmUtilities.CreateTerminateResponseMessage(
Settings.MessageVersion,
messageInfo.TerminateSequenceInfo.MessageId,
_session.OutputID);
try
{
await OnConnectionSendAsync(response, DefaultSendTimeout, false, true);
}
finally
{
response.Close();
}
_session.OnRemoteFault(new ProtocolException(SR.UnsupportedTerminateSequenceExceptionString));
return;
}
}
else if (final)
{
if (_closeRequestor == null)
{
string exceptionString = SR.UnsupportedCloseExceptionString;
string faultString = SR.SequenceTerminatedUnsupportedClose;
fault = SequenceTerminatedFault.CreateProtocolFault(_session.OutputID, faultString,
exceptionString);
}
else
{
fault = WsrmUtilities.ValidateFinalAck(_session, messageInfo, Connection.Last);
if (fault == null)
{
_closeRequestor.SetInfo(messageInfo);
}
}
}
else if (messageInfo.WsrmHeaderFault != null)
{
if (!(messageInfo.WsrmHeaderFault is UnknownSequenceFault))
{
throw Fx.AssertAndThrow("Fault must be UnknownSequence fault.");
}
if (_terminateRequestor == null)
{
throw Fx.AssertAndThrow("In wsrm11, if we start getting UnknownSequence, terminateRequestor cannot be null.");
}
_terminateRequestor.SetInfo(messageInfo);
}
if (fault != null)
{
_session.OnLocalFault(fault.CreateException(), fault, null);
return;
}
}
_session.OnRemoteActivity(Connection.Strategy.QuotaRemaining == 0);
}
finally
{
if (closeMessage)
{
messageInfo.Message.Close();
}
}
}
