public OpenBlockStatus TryOpenBlock(CommittedBlockId parent, out UncommittedBlock freshBlock)
{
var blocks = GetBlocks();
var blockCount = AsHeader.BlockCount;
var lowerIndex = Math.Max(0, blockCount - BlockScanLimit);
freshBlock = default;
if (blockCount == 0 && !parent.Equals(CommittedBlockId.GenesisParent))
{
return(OpenBlockStatus.ParentNotFound);
}
// Find the parent, and assess the block height
int parentBlockHeight = -1;
var parentAlias = BlockAlias.Undefined;
for (var i = blockCount - 1; i >= lowerIndex; i--)
{
ref var candidate = ref blocks[i];
if (candidate.IsDeleted)
{
continue;
}
if (candidate.BlockId.Equals(parent))
{
parentBlockHeight = candidate.BlockHeight;
parentAlias = candidate.Alias;
break;
}
if (i == 0)
{
return(OpenBlockStatus.ParentNotFound);
}
}
