internal bool Synchronize(ChainedHeader newTip)
{
if (newTip?.HashBlock == this.PollsRepository.CurrentTip?.Hash)
{
return(true);
}
ChainedHeader repoTip = GetPollsRepositoryTip();
bool bSuccess = true;
this.PollsRepository.Synchronous(() =>
{
// Remove blocks as required.
if (repoTip != null)
{
ChainedHeader fork = repoTip.FindFork(newTip);
if (repoTip.Height > fork.Height)
{
this.PollsRepository.WithTransaction(transaction =>
{
List <IFederationMember> modifiedFederation = this.GetFederationAtPollsRepositoryTip(repoTip);
for (ChainedHeader header = repoTip; header.Height > fork.Height; header = header.Previous)
{
Block block = this.blockRepository.GetBlock(header.HashBlock);
this.UnProcessBlock(transaction, new ChainedHeaderBlock(block, header));
}
transaction.Commit();
});
repoTip = fork;
}
}
// Add blocks as required.
var headers = new List <ChainedHeader>();
for (int height = (repoTip?.Height ?? 0) + 1; height <= newTip.Height; height++)
{
ChainedHeader header = this.chainIndexer.GetHeader(height);
headers.Add(header);
}
if (headers.Count > 0)
{
DBreeze.Transactions.Transaction currentTransaction = this.PollsRepository.GetTransaction();
int i = 0;
foreach (Block block in this.blockRepository.EnumerateBatch(headers))
{
if (this.nodeLifetime.ApplicationStopping.IsCancellationRequested)
{
this.logger.LogTrace("(-)[NODE_DISPOSED]");
this.PollsRepository.SaveCurrentTip(currentTransaction);
currentTransaction.Commit();
currentTransaction.Dispose();
bSuccess = false;
return;
}
ChainedHeader header = headers[i++];
this.ProcessBlock(currentTransaction, new ChainedHeaderBlock(block, header));
if (header.Height % 10000 == 0)
{
var progress = (int)((decimal)header.Height / this.chainIndexer.Tip.Height * 100);
var progressString = $"Synchronizing voting data at height {header.Height} / {this.chainIndexer.Tip.Height} ({progress} %).";
this.logger.LogInformation(progressString);
this.signals.Publish(new FullNodeEvent()
{
Message = progressString, State = FullNodeState.Initializing.ToString()
});
this.PollsRepository.SaveCurrentTip(currentTransaction);
currentTransaction.Commit();
currentTransaction.Dispose();
currentTransaction = this.PollsRepository.GetTransaction();
}
}
// If we ended the synchronization at say block 10100, the current transaction would still be open and
// thus we need to commit and dispose of it.
// If we ended at block 10000, then the current transaction would have been committed and
// disposed and re-opened.
this.PollsRepository.SaveCurrentTip(currentTransaction);
currentTransaction.Commit();
currentTransaction.Dispose();
}
});
return(bSuccess);
}