private void RaiseWorkCompletedEventFromClientContext(object state)
{
OperationInfo opInfo = (OperationInfo)state;
RunWorkerCompletedEventArgsWithUserState eventArgs = opInfo.OperationResult;
Delegate[] targets;
lock (_operationCompletedLock)
{
targets = _operationCompleted.GetInvocationList();
}
foreach (RunWorkerCompletedEventHandler handler in targets)
{
try
{
handler(this, eventArgs);
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(string.Format("---{0}:RaiseWorkCompletedEventFromClientContext, exception caught : {1}", this.ToString(), ex.Message));
//throw ex;
}
}
// Now that we're done calling back to the client to let them know
// that the operation has completed, remove this operation from the
// queue and check to see if we need to start another operation.
//
OperationRequest opRequest = opInfo.OperationRequest;
OperationInfo nextOp = null;
lock (_collectionsLock)
{
if ((_operationQueue.Peek() != opInfo) || !_userStateToOperationMap.ContainsKey(opRequest.UserState))
{
throw new InvalidOperationException("Something freaky happened.");
}
_operationQueue.Dequeue();
_userStateToOperationMap.Remove(opInfo);
if (_operationQueue.Count > 0)
{
nextOp = _operationQueue.Peek();
}
else
{
_cancelAllPending = false;
}
}
if (nextOp != null)
{
// We have more work items pending. Kick off another operation.
//
nextOp.OperationRequest.OperationHandler.BeginInvoke(nextOp, OperationHandlerDone, nextOp);
}
}
internal OperationInfo(OperationRequest request)
{
_request = request;
_result = null;
}