/// <summary>
/// Helper.
/// </summary>
protected RequiredType GetPendingMessage <RequiredType>(bool startOperation, out int id)
where RequiredType : RequestMessage
{
id = 0;
try
{
lock (this)
{
foreach (OperationInformation info in _stub.PendingOperationsArray)
{
if (info.Request is RequiredType && info.IsStarted == false)
{
TracerHelper.Trace("Executing " + info.Request.GetType().Name + " requested was " + typeof(RequiredType).Name);
id = Int32.Parse(info.Id);
if (startOperation)
{
info.Start();
if (((RequestMessage)info.Request).PerformSynchronous == false)
{// Finish of operations that do not require responces as soon as they are started.
TracerHelper.Trace("Completing " + info.Request.GetType().Name);
_stub.CompleteOperation(info.Id, null);
}
}
return((RequiredType)info.Request);
}
}
}
}
catch (Exception ex)
{// Make sure we handle any possible unexpected exceptions, as otherwise they bring the
// entire package (MT4 included) down with a bad error.
SystemMonitor.Error(ex.Message);
}
return(null);
}
/// <summary>
///
/// </summary>
void _historyClient_OnDataEvent(int lRequestId, object pHist, enumHistEventType evt)
{
List <DataBar> extractedBars = new List <DataBar>();
if (pHist is MbtHistDayBar)
{
MbtHistDayBar bars = (MbtHistDayBar)pHist;
bars.First();
while (bars.Eof == false)
{
decimal open = (decimal)bars.Open;
decimal close = (decimal)bars.Close;
decimal high = (decimal)bars.High;
decimal low = (decimal)bars.Low;
extractedBars.Insert(0, new DataBar(bars.CloseDate, open, high, low, close, bars.TotalVolume));
bars.Next();
}
}
else if (pHist is MbtHistMinBar)
{
MbtHistMinBar bars = (MbtHistMinBar)pHist;
bars.First();
while (bars.Eof == false)
{
decimal open = (decimal)bars.Open;
decimal close = (decimal)bars.Close;
decimal high = (decimal)bars.High;
decimal low = (decimal)bars.Low;
extractedBars.Insert(0, new DataBar(bars.UTCDateTime, open, high, low, close, bars.TotalVolume));
bars.Next();
}
}
DataHistoryOperation operation = (DataHistoryOperation)_operationStub.GetOperationById(lRequestId.ToString());
if (operation != null)
{
_operationStub.CompleteOperation(lRequestId.ToString(), new DataHistoryUpdate(operation.Request.Period, extractedBars));
}
}