// Calls neighbor.BeginClose or EndClose and catches appropriate exceptions for any cleanup.
// We use a single method for both BeginClose and EndClose processing since exception handling
// is very similar in both cases.
void InvokeAsyncNeighborClose(PeerNeighbor neighbor, PeerCloseReason closeReason,
PeerCloseInitiator closeInitiator, Exception closeException, IAsyncResult endResult)
{
// initiate invoking BeginClose or EndClose
try
{
if (endResult == null)
{
IAsyncResult beginResult = neighbor.BeginClose(closeReason, closeInitiator,
closeException, Fx.ThunkCallback(new AsyncCallback(OnNeighborClosedCallback)), neighbor);
if (beginResult.CompletedSynchronously)
neighbor.EndClose(beginResult);
}
else
{
neighbor.EndClose(endResult);
}
}
catch (Exception e)
{
if (Fx.IsFatal(e)) throw;
DiagnosticUtility.TraceHandledException(e, TraceEventType.Information);
neighbor.TraceEventHelper(TraceEventType.Warning, TraceCode.PeerNeighborCloseFailed, SR.GetString(SR.TraceCodePeerNeighborCloseFailed), e);
// May get InvalidOperationException or ObjectDisposedException due to simultaneous close from both sides (and autoclose is enabled)
if (e is InvalidOperationException || e is CommunicationException || e is TimeoutException)
{
neighbor.Abort();
}
else
{
throw;
}
}
}
