private void TimeoutCallback(object state, bool timedOut)
{
this.UnregisterWaitHandle();
TimeSpan timeSpan = TimeProvider.UtcNow - this.lastPingAttemptUtc;
if (timeSpan < MdbSystemMailboxPinger.PingTimeout)
{
ExTraceGlobals.DatabasePingerTracer.TraceError <TimeSpan, TimeSpan, Guid>((long)this.GetHashCode(), "Timeout was called before PingTimeout reached. Ignoring. Elapsed: {0}, PingTimeout: {1}, Database: {2}", timeSpan, MdbSystemMailboxPinger.PingTimeout, this.databaseGuid);
return;
}
if (timedOut)
{
PingerPerfCounterWrapper.PingTimedOut();
if (MdbSystemMailboxPinger.OnPingTimeout != null)
{
MdbSystemMailboxPinger.OnPingTimeout(this.databaseGuid, MdbSystemMailboxPinger.PingTimeout);
}
ExTraceGlobals.DatabasePingerTracer.TraceError <Guid>((long)this.GetHashCode(), "Ping for Mdb '{0}' timed out. This might suggest that the remote server is down.", this.databaseGuid);
StorageGlobals.EventLogger.LogEvent(StorageEventLogConstants.Tuple_ErrorDatabasePingTimedOut, string.Empty, new object[]
{
this.databaseGuid,
timeSpan,
(this.lastSuccessfulPingUtc == DateTime.MinValue) ? "[never]" : this.lastSuccessfulPingUtc.ToString()
});
}
}
private bool OpenSession()
{
bool flag = false;
if (this.AcquireADObjectsForPrivateMdb())
{
using (MailboxSession mailboxSession = this.GetMailboxSession())
{
bool flag2 = false;
try
{
lock (this.instanceLock)
{
if (this.registeredWaitHandle == null && this.remoteCallDoneEvent != null)
{
this.remoteCallDoneEvent.Reset();
this.registeredWaitHandle = ThreadPool.RegisterWaitForSingleObject(this.remoteCallDoneEvent, this.waitOrTimerCallback, null, MdbSystemMailboxPinger.PingTimeout, true);
flag2 = true;
}
}
if (MdbSystemMailboxPinger.OnTestPing != null)
{
flag = MdbSystemMailboxPinger.OnTestPing(this.databaseGuid, this);
}
else
{
mailboxSession.Mailbox.ForceReload(new PropertyDefinition[]
{
MailboxSchema.QuotaUsedExtended
});
flag = true;
}
if (flag)
{
this.pingerState = MdbSystemMailboxPinger.PingerState.Normal;
}
}
finally
{
if (flag2)
{
this.UnregisterWaitHandle();
}
}
}
}
if (flag)
{
this.lastSuccessfulPingUtc = TimeProvider.UtcNow;
ExTraceGlobals.DatabasePingerTracer.TraceDebug <Guid>((long)this.GetHashCode(), "Successfully pinged database {0}", this.databaseGuid);
}
return(flag);
}