private void HandleReadError(FileIOonSourceException wrappedEx)
{
Exception innerException = wrappedEx.InnerException;
bool flag = false;
if (innerException is CorruptLogDetectedException)
{
flag = true;
}
else if (innerException is IOException)
{
int hresult = 0;
if (FileOperations.IsCorruptedIOException(innerException as IOException, out hresult))
{
flag = true;
int num;
FileOperations.ConvertHResultToWin32(hresult, out num);
ReplayEventLogConstants.Tuple_FatalIOErrorEncountered.LogEvent(this.Database.Identity, new object[]
{
this.Database.DatabaseName,
wrappedEx.FileFullPath,
innerException.Message,
num,
innerException.ToString()
});
}
}
if (flag)
{
this.HandleCorruptLog(innerException);
return;
}
this.HandleSourceReadError(wrappedEx);
}
public FileIOonSourceException GetE00Generation(out long e00Gen, string e00Filename)
{
Exception ex = null;
FileIOonSourceException result = null;
e00Gen = 0L;
try
{
e00Gen = EseHelper.GetLogfileGeneration(e00Filename);
ExTraceGlobals.MonitoredDatabaseTracer.TraceDebug <long, string>((long)this.GetHashCode(), "E00 Gen is 0x{0:x} for {1}", e00Gen, e00Filename);
}
catch (EsentErrorException ex2)
{
ex = ex2;
}
catch (IOException ex3)
{
ex = ex3;
}
catch (UnauthorizedAccessException ex4)
{
ex = ex4;
}
if (ex != null)
{
ExTraceGlobals.MonitoredDatabaseTracer.TraceError <string, Exception>((long)this.GetHashCode(), "Could not get generation of {0}: {1}", e00Filename, ex);
result = new FileIOonSourceException(Environment.MachineName, e00Filename, ex.Message, ex);
}
return(result);
}
private LogCopyServerContext.SendLogStatus SendE00()
{
string text = this.Database.BuildLogFileName(0L);
long num = 0L;
FileIOonSourceException ex;
if (this.m_dismountWorker == null)
{
ex = this.Database.GetE00Generation(out num, text);
}
else
{
ex = this.m_dismountWorker.LastE00ReadException;
}
if (ex != null)
{
bool flag = true;
Exception innerException = ex.InnerException;
if (innerException != null && innerException is EsentFileAccessDeniedException && !AmStoreServiceMonitor.WasKillTriggered())
{
if (this.m_dismountWorker == null)
{
LogCopyServerContext.Tracer.TraceDebug((long)this.GetHashCode(), "SendE00(): E00 still in use so starting a DismountDatabaseOrKillStore() in background...");
this.m_dismountWorker = new DismountBackgroundWorker(new DismountBackgroundWorker.DismountDelegate(this.DismountDatabaseOrKillStore));
this.m_dismountWorker.LastE00ReadException = ex;
this.m_dismountWorker.Start();
}
if (this.m_dismountWorker.CompletedEvent.WaitOne(1000))
{
if (this.m_dismountWorker.DismountException == null)
{
flag = false;
LogCopyServerContext.Tracer.TraceDebug((long)this.GetHashCode(), "SendE00(): DismountDatabaseOrKillStore() operation completed successfully");
}
else
{
LogCopyServerContext.Tracer.TraceError <Exception>((long)this.GetHashCode(), "SendE00(): DismountDatabaseOrKillStore() operation completed but encountered an exception: {0}", this.m_dismountWorker.DismountException);
}
this.m_dismountWorker.Dispose();
this.m_dismountWorker = null;
}
else if ((ExDateTime.Now - this.m_dismountWorker.StartTime).TotalMilliseconds < (double)(RegistryParameters.AcllDismountOrKillTimeoutInSec2 * 1000))
{
return(LogCopyServerContext.SendLogStatus.KeepChannelAlive);
}
}
if (!flag)
{
this.Database.ProbeForMoreLogs(this.m_currentLogGeneration);
return(LogCopyServerContext.SendLogStatus.KeepTrying);
}
this.HandleSourceReadError(ex);
return(LogCopyServerContext.SendLogStatus.StopForException);
}
else if (num != this.m_currentLogGeneration)
{
LogCopyServerContext.Tracer.TraceDebug <long, long>((long)this.GetHashCode(), "SendE00 finds e00 at 0x{0:X} but expected 0x{1:X}", num, this.m_currentLogGeneration);
if (num > this.m_currentLogGeneration)
{
this.Database.SyncWithE00(num);
return(LogCopyServerContext.SendLogStatus.KeepTrying);
}
AcllFailedException e = new AcllFailedException(ReplayStrings.LogCopierE00InconsistentError(num, this.m_currentLogGeneration));
this.SendException(e);
return(LogCopyServerContext.SendLogStatus.StopForException);
}
else
{
Exception ex2 = null;
try
{
using (SafeFileHandle safeFileHandle = LogCopy.OpenLogForRead(text))
{
CopyLogReply copyLogReply = new CopyLogReply(this.Channel);
copyLogReply.ThisLogGeneration = 0L;
copyLogReply.EndOfLogGeneration = num;
copyLogReply.EndOfLogUtc = DateTime.UtcNow;
CheckSummer summer = null;
if (this.Channel.ChecksumDataTransfer)
{
summer = new CheckSummer();
}
this.Channel.SendLogFileTransferReply(copyLogReply, text, safeFileHandle, this.SourceDatabasePerfCounters, summer);
}
}
catch (IOException ex3)
{
ex2 = new FileIOonSourceException(Environment.MachineName, text, ex3.Message, ex3);
}
catch (UnauthorizedAccessException ex4)
{
ex2 = new FileIOonSourceException(Environment.MachineName, text, ex4.Message, ex4);
}
catch (FileIOonSourceException ex5)
{
ex2 = ex5;
}
if (ex2 != null)
{
this.HandleSourceReadError(ex2);
return(LogCopyServerContext.SendLogStatus.StopForException);
}
return(LogCopyServerContext.SendLogStatus.SentE00);
}
}
