BkResult HandleBlock(HandleBlockAction a)
{
BlockVerificationHelper action = null;
using (var dbTx = _DBContext.GetTransactionContext())
{
action = new BlockVerificationHelper(
this,
dbTx,
a.BkHash,
a.Bk,
a.IsOrphan
);
switch (action.Result.BkResultEnum)
{
case BkResultEnum.AcceptedOrphan:
dbTx.Commit();
break;
case BkResultEnum.Accepted:
if (action.ConfirmedTxs.Any() || action.UnconfirmedTxs.Any())
{
UpdateMempool(dbTx, action.ConfirmedTxs, action.UnconfirmedTxs);
}
else
{
dbTx.Commit();
}
BlockStore.Orphans(dbTx, a.BkHash).ToList().ForEach(t => new HandleBlockAction(t.Key, t.Value, true).Publish());
break;
case BkResultEnum.Rejected:
return(action.Result);
}
}
//TODO: memory management issues. trying to explicitly collect DynamicMethods
GC.Collect();
GC.WaitForPendingFinalizers();
action.QueueActions.ForEach(t =>
{
if (t is MessageAction)
{
(t as MessageAction).Message.Publish();
}
else
{
t.Publish();
}
});
return(action.Result);
}
public BlockChain(string dbName, byte[] genesisBlockHash)
{
memPool = new MemPool();
UTXOStore = new UTXOStore();
ActiveContractSet = new ActiveContractSet();
BlockStore = new BlockStore();
BlockNumberDifficulties = new BlockNumberDifficulties();
ChainTip = new ChainTip();
Timestamps = new BlockTimestamps();
GenesisBlockHash = genesisBlockHash;
_DBContext = new DBContext(dbName);
OwnResource(_DBContext);
//var listener = new EventLoopMessageListener<QueueAction>(HandleQueueAction, "BlockChain listener");
//OwnResource(MessageProducer<QueueAction>.Instance.AddMessageListener(listener));
var buffer = new BufferBlock <QueueAction>();
QueueAction.Target = buffer;
using (var dbTx = _DBContext.GetTransactionContext())
{
var chainTip = ChainTip.Context(dbTx).Value;
//TODO: check if makred as main?
Tip = chainTip == null ? null : BlockStore.GetBlock(dbTx, chainTip);
if (Tip != null)
{
BlockChainTrace.Information("Tip's block number is " + Tip.Value.header.blockNumber);
//Try to validate orphans of tip, if any. this would be the case when a sync action was interrupted
BlockStore.Orphans(dbTx, Tip.Key).ToList().ForEach(t => new HandleBlockAction(t.Key, t.Value, true).Publish());
}
else
{
BlockChainTrace.Information("No tip.");
}
InitBlockTimestamps(dbTx);
}
var consumer = ConsumeAsync(buffer);
}