/// <summary>
/// Starts the event processors and returns the fully configured ring buffer.
///
/// The ring buffer is set up to prevent overwriting any entry that is yet to
/// be processed by the slowest event processor.
///
/// This method must only be called once after all event processors have been added.
/// </summary>
/// <returns>the configured ring buffer</returns>
public RingBuffer <T> Start()
{
_ringBuffer.AddGatingSequences(_consumerRepository.GetLastSequenceInChain(true));
CheckOnlyStartedOnce();
foreach (var consumerInfo in _consumerRepository)
{
consumerInfo.Start(_executor);
}
return(_ringBuffer);
}
/// <summary>
/// <p>Starts the event processors and returns the fully configured ring buffer.</p>
///
/// <p>The ring buffer is set up to prevent overwriting any entry that is yet to
/// be processed by the slowest event processor.</p>
///
/// <p>This method must only be called once after all event processors have been added.</p>
/// </summary>
/// <returns>the configured ring buffer.</returns>
public RingBuffer <T> Start()
{
var gatingSequences = consumerRepository.GetLastSequenceInChain(true);
ringBuffer.AddGatingSequences(gatingSequences);
CheckOnlyStartedOnce();
foreach (var consumerInfo in consumerRepository.AllConsumerInfos)
{
consumerInfo.Start(taskScheduler);
}
return(ringBuffer);
}
/// <summary>
/// Confirms if all messages have been consumed by all event processors
/// </summary>
/// <returns></returns>
private bool HasBacklog()
{
var cursor = _ringBuffer.Cursor;
foreach (var sequence in _consumerRepository.GetLastSequenceInChain(false))
{
if (cursor > sequence.Value)
{
return(true);
}
}
return(false);
}
