public bool TryGetAtHeight(int height, [MaybeNullWhen(false)] out HeaderNode?headerNode)
{
using (GlobalLocks.ReadOnMainAsync().GetAwaiter().GetResult())
{
return(HeadersTree.TryGetNodeOnBestChain(height, out headerNode));
}
}
public HeaderNode AddToBlockIndex(BlockHeader header)
{
using (GlobalLocks.WriteOnMainAsync().GetAwaiter().GetResult())
{
// Check for duplicate
if (TryGetKnownHeaderNode(header.Hash, out HeaderNode? headerNode))
{
return(headerNode);
}
if (!TryGetKnownHeaderNode(header.PreviousBlockHash, out HeaderNode? previousHeader))
{
ThrowHelper.ThrowNotSupportedException("Previous hash not found (shouldn't happen).");
}
headerNode = new HeaderNode(header, previousHeader);
if (BestHeader == null || BestHeader.ChainWork < headerNode.ChainWork)
{
BestHeader = headerNode;
}
HeadersTree.Add(headerNode);
_blockHeaderRepository.TryAdd(header);
return(headerNode);
}
}
public bool TryGetNext(HeaderNode headerNode, [MaybeNullWhen(false)] out HeaderNode nextHeaderNode)
{
using (GlobalLocks.ReadOnMainAsync().GetAwaiter().GetResult())
{
if (IsInBestChain(headerNode) && HeadersTree.TryGetNodeOnBestChain(headerNode.Height + 1, out nextHeaderNode))
{
return(true);
}
nextHeaderNode = null;
return(false);
}
}
public bool IsInBestChain(HeaderNode headerNode)
{
return(HeadersTree.IsInBestChain(headerNode));
}
public BlockLocator?GetLocator(HeaderNode headerNode)
{
using Microsoft.VisualStudio.Threading.AsyncReaderWriterLock.Releaser readMainLock = GlobalLocks.ReadOnMainAsync().GetAwaiter().GetResult();
return(HeadersTree.GetLocator(headerNode));
}
public bool TryGetKnownHeaderNode(UInt256?blockHash, [MaybeNullWhen(false)] out HeaderNode node)
{
//using var readLock = new ReadLock(this.theLock);
using Microsoft.VisualStudio.Threading.AsyncReaderWriterLock.Releaser readMainLock = GlobalLocks.ReadOnMainAsync().GetAwaiter().GetResult();
return(HeadersTree.TryGetNode(blockHash, false, out node));
}
public bool TryGetBestChainHeaderNode(UInt256 blockHash, [MaybeNullWhen(false)] out HeaderNode node)
{
using Microsoft.VisualStudio.Threading.AsyncReaderWriterLock.Releaser readMainLock = GlobalLocks.ReadOnMainAsync().GetAwaiter().GetResult();
return(HeadersTree.TryGetNode(blockHash, true, out node));
}