internal static void StartContinuousLogTransmission(NetworkChannel channel, ContinuousLogCopyRequest oldReq)
{
LogCopyServerContext logCopyServerContext = new LogCopyServerContext(channel, channel.MonitoredDatabase);
logCopyServerContext.m_clientIsDownLevel = true;
LogCopyServerContext.Tracer.TraceDebug <string, bool>((long)logCopyServerContext.GetHashCode(), "Passive({0}) is downlevel {1}}", channel.PartnerNodeName, logCopyServerContext.m_clientIsDownLevel);
ContinuousLogCopyRequest2 initialRequest = LogCopyServerContext.UpgradeRequest(channel, oldReq);
logCopyServerContext.InitContinuousLogTransmission(initialRequest);
}
private void HandleIncomingMessage()
{
try
{
if (!this.m_markedForTermination)
{
lock (this.m_networkReadLock)
{
NetworkChannelMessage message = this.Channel.GetMessage();
PingMessage pingMessage = message as PingMessage;
if (pingMessage != null)
{
LogCopyServerContext.Tracer.TraceDebug((long)this.GetHashCode(), "HandleIncomingMessage: Ping received");
Interlocked.Exchange(ref this.m_pingPending, 1);
this.m_sendDataEnabled = true;
}
else
{
ContinuousLogCopyRequest2 continuousLogCopyRequest = message as ContinuousLogCopyRequest2;
if (continuousLogCopyRequest == null)
{
if (message is ContinuousLogCopyRequest)
{
continuousLogCopyRequest = LogCopyServerContext.UpgradeRequest(this.Channel, message as ContinuousLogCopyRequest);
}
else
{
LogCopyServerContext.Tracer.TraceError <NetworkChannelMessage>((long)this.GetHashCode(), "HandleIncomingMessage: UnexpectedMsg:{0}", message);
this.Channel.ThrowUnexpectedMessage(message);
}
}
LogCopyServerContext.Tracer.TraceDebug <long, long, ContinuousLogCopyRequest2.Flags>((long)this.GetHashCode(), "HandleIncomingMessage: First=0x{0:X} Max=0x{1:X} Flags=0x{2:X}", continuousLogCopyRequest.FirstGeneration, continuousLogCopyRequest.LastGeneration, continuousLogCopyRequest.FlagsUsed);
this.m_sendDataEnabled = true;
this.m_nextLogCopyRequest = continuousLogCopyRequest;
}
this.StartNetworkRead();
this.SignalWorkPending();
}
}
}
catch (NetworkTransportException arg)
{
LogCopyServerContext.Tracer.TraceError <NetworkTransportException>((long)this.GetHashCode(), "HandleIncomingMessage: Channel exception: {0}", arg);
this.MarkForTermination();
}
}
private void InitContinuousLogTransmission(ContinuousLogCopyRequest2 initialRequest)
{
this.m_clientNodeName = initialRequest.ClientNodeName;
LogCopyServerContext.Tracer.TraceDebug((long)this.GetHashCode(), "StartContinuousLogTransmission({0}): First=0x{1:X} Max=0x{2:X} Flags=0x{3:X}", new object[]
{
this.PassiveCopyName,
initialRequest.FirstGeneration,
initialRequest.LastGeneration,
initialRequest.FlagsUsed
});
this.m_currentLogCopyRequest = initialRequest;
this.m_nextLogCopyRequest = initialRequest;
this.m_currentLogGeneration = initialRequest.FirstGeneration;
this.m_sendDataEnabled = true;
this.Channel.NetworkChannelManagesAsyncReads = false;
try
{
this.m_workIsPendingEvent = new ManualResetEvent(false);
this.LinkWithMonitoredDatabase();
}
catch (NetworkCancelledException arg)
{
LogCopyServerContext.Tracer.TraceError <NetworkCancelledException>((long)this.GetHashCode(), "InitContinuousLogTransmission cancelled {0}", arg);
this.Terminate();
return;
}
this.SourceDatabasePerfCounters = SourceDatabasePerformanceCounters.GetInstance(this.PassiveCopyName);
try
{
this.StartNetworkRead();
}
catch (NetworkTransportException arg2)
{
LogCopyServerContext.Tracer.TraceError <NetworkTransportException>((long)this.GetHashCode(), "InitContinuousLogTransmission caught {0}", arg2);
this.MarkForTermination();
}
this.SignalWorkPending();
}
internal static void StartContinuousLogTransmission(NetworkChannel channel, ContinuousLogCopyRequest2 initialRequest)
{
LogCopyServerContext logCopyServerContext = new LogCopyServerContext(channel, channel.MonitoredDatabase);
logCopyServerContext.InitContinuousLogTransmission(initialRequest);
}
private bool EnterBlockMode()
{
TimeSpan timeout = TimeSpan.FromSeconds(5.0);
bool flag;
Exception ex = AmStoreHelper.IsDatabaseMounted(this.Database.DatabaseGuid, this.LocalNodeName, timeout, out flag);
if (ex != null)
{
LogCopyServerContext.Tracer.TraceError <Exception>((long)this.GetHashCode(), "Store may not be running. Mount check failed: {0}", ex);
return(false);
}
if (!flag)
{
LogCopyServerContext.Tracer.TraceDebug <string>((long)this.GetHashCode(), "Db {0} not mounted. BlockMode is not possible", this.Database.DatabaseName);
return(false);
}
EnterBlockModeMsg enterBlockModeMsg = new EnterBlockModeMsg(this.Channel, EnterBlockModeMsg.Flags.PrepareToEnter, this.Database.DatabaseGuid, this.m_currentLogGeneration);
bool flag2 = false;
bool result;
lock (this.m_networkReadLock)
{
if (this.m_markedForTermination)
{
result = false;
}
else
{
int readTimeoutInMs = this.Channel.TcpChannel.ReadTimeoutInMs;
int writeTimeoutInMs = this.Channel.TcpChannel.WriteTimeoutInMs;
try
{
this.Channel.TcpChannel.ReadTimeoutInMs = RegistryParameters.LogShipACLLTimeoutInMsec;
this.Channel.TcpChannel.WriteTimeoutInMs = RegistryParameters.LogShipACLLTimeoutInMsec;
LogCopyServerContext.Tracer.TraceDebug <string>((long)this.GetHashCode(), "EnterBlockMode requesting PrepareToEnter for {0}", this.PassiveCopyName);
enterBlockModeMsg.Send();
EnterBlockModeMsg enterBlockModeMsg2;
string text;
for (;;)
{
NetworkChannelMessage message = this.Channel.GetMessage();
PingMessage pingMessage = message as PingMessage;
if (pingMessage != null)
{
LogCopyServerContext.Tracer.TraceDebug((long)this.GetHashCode(), "PingMessage ignored");
}
else
{
ContinuousLogCopyRequest2 continuousLogCopyRequest = message as ContinuousLogCopyRequest2;
if (continuousLogCopyRequest != null)
{
this.m_nextLogCopyRequest = continuousLogCopyRequest;
LogCopyServerContext.Tracer.TraceDebug <long, long, ContinuousLogCopyRequest2.Flags>((long)this.GetHashCode(), "ContinuousLogCopyRequest2: First=0x{0:X} Max=0x{1:X} Flags=0x{2:X}", continuousLogCopyRequest.FirstGeneration, continuousLogCopyRequest.LastGeneration, continuousLogCopyRequest.FlagsUsed);
}
else
{
enterBlockModeMsg2 = (message as EnterBlockModeMsg);
text = null;
if (enterBlockModeMsg2 == null)
{
text = string.Format("Passive({0}) sent unexpected msg: {1}", this.PassiveCopyName, message.GetType());
}
else if (enterBlockModeMsg2.AckCounter != enterBlockModeMsg.AckCounter)
{
text = string.Format("Passive({0}) is out of sync. BlockModeEntry Aborted", this.PassiveCopyName);
}
if (text != null)
{
break;
}
if (enterBlockModeMsg2.FlagsUsed != EnterBlockModeMsg.Flags.PassiveIsReady)
{
goto Block_13;
}
if (!this.RequestBlockModeInStore())
{
goto Block_15;
}
}
}
}
LogCopyServerContext.Tracer.TraceError((long)this.GetHashCode(), text);
throw new NetworkUnexpectedMessageException(this.m_clientNodeName, text);
Block_13:
if (enterBlockModeMsg2.FlagsUsed == EnterBlockModeMsg.Flags.PassiveReject)
{
LogCopyServerContext.Tracer.TraceError <string>((long)this.GetHashCode(), "BlockMode rejected by passive {0}", this.PassiveCopyName);
flag2 = true;
return(false);
}
text = string.Format("Passive({0}) passed unexpected flags 0x{1X}", this.PassiveCopyName, enterBlockModeMsg2.FlagsUsed);
throw new NetworkUnexpectedMessageException(this.m_clientNodeName, text);
Block_15:
flag2 = true;
result = false;
}
finally
{
if (flag2)
{
this.Channel.TcpChannel.ReadTimeoutInMs = readTimeoutInMs;
this.Channel.TcpChannel.WriteTimeoutInMs = writeTimeoutInMs;
this.StartNetworkRead();
}
}
}
}
return(result);
}
