bool ReadNextMessage(IPositionedMessagesParser parser)
{
var tmp = parser.ReadNextAndPostprocess();
lastReadMessage = tmp.Message;
return(lastReadMessage != null);
}
void CreateUnderlyingParserAndInitJitterBuffer(Func <CreateParserParams, IPositionedMessagesParser> underlyingParserFactory)
{
CreateParserParams reversedParserParams = originalParams;
reversedParserParams.Range = null;
reversedParserParams.Direction = GetOppositeDirection(originalParams.Direction);
reversedParserParams.Flags |= MessagesParserFlag.DisableMultithreading;
int reversedMessagesQueued = 0;
using (IPositionedMessagesParser reversedParser = underlyingParserFactory(reversedParserParams))
{
var tmp = new List <PostprocessedMessage>();
for (int i = 0; i < jitterBufferSize; ++i)
{
var tmpMsg = reversedParser.ReadNextAndPostprocess();
if (tmpMsg.Message == null)
{
break;
}
tmp.Add(tmpMsg);
}
tmp.Reverse();
foreach (var tmpMsg in tmp)
{
jitterBuffer.Enqueue(new Entry()
{
data = tmpMsg, index = currentIndex++
});
positionsBuffer.Push(new MessagesPositions(tmpMsg.Message));
++reversedMessagesQueued;
}
}
enumerator = ReadAddMessagesFromRangeCompleteJitterBuffer(underlyingParserFactory).GetEnumerator();
for (int i = 0; i < jitterBufferSize; ++i)
{
var tmp = LoadNextMessage();
reversedMessagesQueued -= tmp.DequeuedMessages;
if (tmp.LoadedMessage == null)
{
break;
}
}
for (int i = 0; i < reversedMessagesQueued && jitterBuffer.Count > 0; ++i)
{
jitterBuffer.Dequeue();
positionsBuffer.Pop();
}
}
void ReadNextMessage(IPositionedMessagesParser parser)
{
try
{
var tmp = parser.ReadNextAndPostprocess();
lastReadMessage = tmp.Message;
if (lastReadMessage == null)
{
breakAlgorithm = true;
}
}
catch (Exception e)
{
loadError = e;
breakAlgorithm = true;
}
}