private async Task <Block?> TryProduceBlock(BlockHeader?parentHeader, CancellationToken cancellationToken = default)
{
Task <Block?>[] produceTasks = new Task <Block?> [_blockProducers.Length];
for (int i = 0; i < _blockProducers.Length; i++)
{
T blockProducerInfo = _blockProducers[i];
produceTasks[i] = blockProducerInfo.BlockProductionTrigger.BuildBlock(parentHeader, cancellationToken, blockProducerInfo.BlockTracer);
}
IEnumerable <(Block?Block, T BlockProducer)> blocksWithProducers;
try
{
Block?[] blocks = await Task.WhenAll(produceTasks);
blocksWithProducers = blocks.Zip(_blockProducers);
}
catch (OperationCanceledException)
{
blocksWithProducers = produceTasks
.Zip(_blockProducers)
.Where(t => t.First.IsCompletedSuccessfully)
.Select(t => (t.First.Result, t.Second));
}
Block?bestBlock = _bestBlockPicker.GetBestBlock(blocksWithProducers);
if (bestBlock is not null)
{
if (produceTasks.Count(t => t.IsCompletedSuccessfully && t.Result is not null) > 1)
{
if (_logger.IsInfo)
{
_logger.Info($"Picked block {bestBlock} to be included to the chain.");
}
}
BlockProduced?.Invoke(this, new BlockEventArgs(bestBlock));
}
return(bestBlock);
}
private void OnBlockProduced(object?sender, BlockEventArgs e)
{
BlockProduced?.Invoke(this, e);
}
