internal void Index(ChainBase chain, int startHeight)
{
List <ChainPartEntry> entries = new List <ChainPartEntry>(((chain.Height - startHeight) / BlockHeaderPerRow) + 5);
startHeight = startHeight - (startHeight % BlockHeaderPerRow);
ChainPartEntry chainPart = null;
for (int i = startHeight; i <= chain.Tip.Height; i++)
{
if (chainPart == null)
{
chainPart = new ChainPartEntry()
{
ChainOffset = i
}
}
;
var block = chain.GetBlock(i);
chainPart.BlockHeaders.Add(block.Header);
if (chainPart.BlockHeaders.Count == BlockHeaderPerRow)
{
entries.Add(chainPart);
chainPart = null;
}
}
if (chainPart != null)
{
entries.Add(chainPart);
}
Index(entries);
}
public IAsyncEnumerable <ChainBlockHeader> GetChainChangesUntilFork(ChainedBlock currentTip, bool forkIncluded, CancellationToken cancellation = default(CancellationToken))
{
return(new AsyncEnumerable <ChainBlockHeader>(async yield =>
{
var oldTip = currentTip;
var table = Configuration.GetChainTable();
List <ChainBlockHeader> blocks = new List <ChainBlockHeader>();
async Task ProcessChainPart(ChainPartEntry chainPart)
{
int height = chainPart.ChainOffset + chainPart.BlockHeaders.Count - 1;
foreach (var block in chainPart.BlockHeaders.Reverse <BlockHeader>())
{
if (currentTip == null && oldTip != null)
{
throw new InvalidOperationException("No fork found, the chain stored in azure is probably different from the one of the provided input");
}
if (oldTip == null || height > currentTip.Height)
{
await yield.ReturnAsync(CreateChainChange(height, block));
}
else
{
if (height < currentTip.Height)
{
currentTip = currentTip.FindAncestorOrSelf(height);
}
var chainChange = CreateChainChange(height, block);
if (chainChange.BlockId == currentTip.HashBlock)
{
if (forkIncluded)
{
await yield.ReturnAsync(chainChange);
}
yield.Break();
}
await yield.ReturnAsync(chainChange);
currentTip = currentTip.Previous;
}
height--;
}
}
var enumerator = await ExecuteBalanceQuery(table, new TableQuery <DynamicTableEntity>(), new[] { 1, 2, 10 }).GetAsyncEnumeratorAsync(cancellation);
while (await enumerator.MoveNextAsync(cancellation))
{
var chainPart = new ChainPartEntry(enumerator.Current, ConsensuFactory);
await ProcessChainPart(chainPart);
}
foreach (var chainPart in (await table.ExecuteQueryAsync(new TableQuery <DynamicTableEntity>())).Skip(2)
.Select(e => new ChainPartEntry(e, ConsensuFactory)))
{
await ProcessChainPart(chainPart);
}
}));
}
