/// <inheritdoc />
public Task <ChainedHeader> LoadAsync(ChainedHeader genesisHeader)
{
Task <ChainedHeader> task = Task.Run(() =>
{
ChainedHeader tip = null;
byte[] firstRow = this.leveldb.Get(BitConverter.GetBytes(0));
if (firstRow == null)
{
genesisHeader.SetBlockHeaderStore(this.blockHeaderStore);
return(genesisHeader);
}
BlockHeader nextHeader = this.dataStoreSerializer.Deserialize <BlockHeader>(firstRow);
Guard.Assert(nextHeader.GetHash() == genesisHeader.HashBlock); // can't swap networks
int index = 1;
while (true)
{
byte[] row = this.leveldb.Get(BitConverter.GetBytes(index));
if (row == null)
{
break;
}
if ((tip != null) && (nextHeader.HashPrevBlock != tip.HashBlock))
{
break;
}
BlockHeader blockHeader = this.dataStoreSerializer.Deserialize <BlockHeader>(row);
tip = new ChainedHeader(nextHeader, blockHeader.HashPrevBlock, tip);
if (tip.Height == 0)
{
tip.SetBlockHeaderStore(this.blockHeaderStore);
}
nextHeader = blockHeader;
index++;
}
if (nextHeader != null)
{
tip = new ChainedHeader(nextHeader, nextHeader.GetHash(), tip);
}
if (tip == null)
{
genesisHeader.SetBlockHeaderStore(this.blockHeaderStore);
tip = genesisHeader;
}
this.locator = tip.GetLocator();
return(tip);
});
return(task);
}