public async Task <IBlockIndex> FindLastLastIrreversibleBlockAsync(string senderPubKey)
{
var senderPeer = _peerPool.FindPeerByPublicKey(senderPubKey);
if (senderPeer == null)
{
return(null);
}
var orderedBlocks = senderPeer.RecentBlockHeightAndHashMappings.OrderByDescending(p => p.Key).ToList();
var chain = await _blockchainService.GetChainAsync();
var chainContext = new ChainContext {
BlockHash = chain.BestChainHash, BlockHeight = chain.BestChainHeight
};
var pubkeyList = (await _dpoSInformationProvider.GetCurrentMinerList(chainContext)).ToList();
var peers = _peerPool.GetPeers().Where(p => pubkeyList.Contains(p.Info.Pubkey)).ToList();
var pubKey = (await _accountService.GetPublicKeyAsync()).ToHex();
if (peers.Count == 0 && !pubkeyList.Contains(pubKey))
{
return(null);
}
foreach (var block in orderedBlocks)
{
var peersHadBlockAmount = peers.Where(p =>
{
p.RecentBlockHeightAndHashMappings.TryGetValue(block.Key, out var hash);
return(hash == block.Value);
}).Count();
if (pubkeyList.Contains(pubKey) &&
_knownBlockCacheProvider.TryGetBlockByHeight(block.Key, out var blockHash) &&
blockHash == block.Value)
{
peersHadBlockAmount++;
}
var sureAmount = pubkeyList.Count.Mul(2).Div(3) + 1;
if (peersHadBlockAmount >= sureAmount)
{
Logger.LogDebug($"LIB found in network layer: height {block.Key}");
return(new BlockIndex(block.Value, block.Key));
}
}
return(null);
}
public async Task GetCurrentMinerList_Test()
{
var result = await _aedpoSInformationProvider.GetCurrentMinerList(new ChainContext());
result.Count().ShouldBe(3);
}