/// <inheritdoc />
public Task <ChainedHeader> LoadAsync(ChainedHeader genesisHeader)
{
Task <ChainedHeader> task = Task.Run(() =>
{
ChainedHeader tip = null;
ChainData data = this.chainStore.GetChainData(0);
if (data == null)
{
genesisHeader.SetChainStore(this.chainStore);
return(genesisHeader);
}
Guard.Assert(data.Hash == genesisHeader.HashBlock); // can't swap networks
int index = 0;
while (true)
{
data = this.chainStore.GetChainData((index));
if (data == null)
{
break;
}
tip = new ChainedHeader(data.Hash, data.Work, tip);
if (tip.Height == 0)
{
tip.SetChainStore(this.chainStore);
}
index++;
}
if (tip == null)
{
genesisHeader.SetChainStore(this.chainStore);
tip = genesisHeader;
}
this.locator = tip.GetLocator();
return(tip);
});
return(task);
}
public void SaveChainToDisk()
{
string dir = CreateTestDir(this);
var chain = new ChainIndexer(this.Network);
this.AppendBlock(chain);
using (var repo = new ChainRepository(new RocksDbChainStore(chain.Network, new DataFolder(dir), chain)))
{
repo.SaveAsync(chain).GetAwaiter().GetResult();
}
using (var engine = RocksDb.Open(new DbOptions().SetCreateIfMissing(), new DataFolder(dir).ChainPath))
{
ChainedHeader tip = null;
var itr = engine.NewIterator();
itr.SeekToFirst();
while (itr.Valid())
{
if (itr.Key()[0] == 1)
{
var data = new ChainRepository.ChainRepositoryData();
data.FromBytes(itr.Value().ToArray(), this.Network.Consensus.ConsensusFactory);
tip = new ChainedHeader(data.Hash, data.Work, tip);
if (tip.Height == 0)
{
tip.SetChainStore(new ChainStore());
}
}
itr.Next();
}
Assert.Equal(tip, chain.Tip);
}
}
public void SaveChainToDisk()
{
string dir = CreateTestDir(this);
var chain = new ChainIndexer(KnownNetworks.StraxRegTest);
this.AppendBlock(chain);
using (var repo = new ChainRepository(new LevelDbChainStore(chain.Network, new DataFolder(dir), chain)))
{
repo.SaveAsync(chain).GetAwaiter().GetResult();
}
using (var engine = new DB(new Options {
CreateIfMissing = true
}, new DataFolder(dir).ChainPath))
{
ChainedHeader tip = null;
var itr = engine.GetEnumerator();
while (itr.MoveNext())
{
if (itr.Current.Key[0] == 1)
{
var data = new ChainRepository.ChainRepositoryData();
data.FromBytes(itr.Current.Value.ToArray(), this.Network.Consensus.ConsensusFactory);
tip = new ChainedHeader(data.Hash, data.Work, tip);
if (tip.Height == 0)
{
tip.SetChainStore(new ChainStore());
}
}
}
Assert.Equal(tip, chain.Tip);
}
}
/// <inheritdoc />
public Task <ChainedHeader> LoadAsync(ChainedHeader genesisHeader)
{
Task <ChainedHeader> task = Task.Run(() =>
{
ChainedHeader tip = null;
ChainData data = this.chainStore.GetChainData(0);
if (data == null)
{
genesisHeader.SetChainStore(this.chainStore);
return(genesisHeader);
}
Guard.Assert(data.Hash == genesisHeader.HashBlock); // can't swap networks
int height = 0;
while (true)
{
data = this.chainStore.GetChainData(height);
if (data == null)
{
break;
}
tip = new ChainedHeader(data.Hash, data.Work, tip);
if (tip.Height == 0)
{
tip.SetChainStore(this.chainStore);
}
if (height % 50_000 == 0)
{
if (this.signals != null)
{
this.signals.Publish(new FullNodeEvent()
{
Message = $"Loading chain at height {height}.", State = FullNodeState.Initializing.ToString()
});
}
this.logger.LogInformation($"Loading chain at height {height}.");
}
height++;
}
if (tip == null)
{
genesisHeader.SetChainStore(this.chainStore);
tip = genesisHeader;
}
else
{
// Confirm that the chain tip exists in the headers table.
this.chainStore.GetHeader(tip, tip.HashBlock);
}
this.locator = tip.GetLocator();
return(tip);
});
return(task);
}
