public ChainManager(BalanceLedger ledger)
{
balanceLedger = ledger;
var files = Directory.EnumerateFiles("chains");
if (!File.Exists(@"chains\main"))
{
main = new Chain();
main.AddBlock(Block.Genesis);
balanceLedger.ApplyDiff(balanceLedger.RewardMiner(new byte[33], Direction.Forward));
}
else
{
foreach (var filename in files)
{
if (filename == @"chains\main")
{
main = new Chain("main");
}
else
{
forks.Add(new Chain(filename.Split(@"\")[1]));
}
}
}
}
public void ProcessBlocks(List <Block> blocks)
{
var validBlocks = GetContinousValidBlocks(blocks);
if (validBlocks.Count != 0)
{
CleanForks();
var firstBlockChain = GetFork(validBlocks[0].PreviousBlockHash);
if (firstBlockChain != null) //skip every block if first valid block does not continue in any chain
{
var previousBlock = firstBlockChain.GetByHash(validBlocks[0].PreviousBlockHash);
if (previousBlock.Height == validBlocks[0].Height - 1)
{
for (int i = 0; i < validBlocks.Count; i++)
{
var fork = GetFork(validBlocks[i].GetHash(), firstBlockChain);
if (fork == null) //new block(s) :)
{
validBlocks = ArrayManipulator.SubArray(validBlocks.ToArray(), i, validBlocks.Count - i).ToList();
break;
}
firstBlockChain = fork;
previousBlock = validBlocks[i];
}
if (validBlocks.Count != 0)
{
var newBlocks = new List <Block>();
if (ValidateDifficulty(validBlocks, firstBlockChain))
{
for (int i = 0; i < validBlocks.Count; i++)
{
if (validBlocks[i].Height > previousBlock.Height)
{
newBlocks.Add(validBlocks[i]);
}
}
var virtualForkBlocks = CreateVirtualFork(firstBlockChain.GetByHash(newBlocks[0].PreviousBlockHash), newBlocks);
var forkBlockHeight = virtualForkBlocks[0].Height;
var reverseBlocks = main.GetBlocks(forkBlockHeight, (int)(main.Height - forkBlockHeight + 1)); //0 is common block
var balanceDiff = ProcessBalanceDiff(Direction.Reverse, reverseBlocks);
if (balanceDiff != null)
{
balanceDiff = ProcessBalanceDiff(Direction.Forward, virtualForkBlocks, balanceDiff);
var writeWatch = new Stopwatch();
writeWatch.Start();
if (balanceDiff != null) //nonces and balances are ok
{
Chain fork;
if (newBlocks[0].Height != firstBlockChain.Height + 1) //fork
{
fork = Fork(virtualForkBlocks);
}
else //block addition
{
fork = firstBlockChain;
foreach (var block in newBlocks)
{
firstBlockChain.AddBlock(block);
}
}
if (IsHeavyest(fork))
{
balanceLedger.ApplyDiff(balanceDiff);
if (fork != main)
{
SetMain(fork);
}
}
}
writeWatch.Stop();
Console.WriteLine("[ChainManager] Write time:" + writeWatch.Elapsed);
}
}
}
}
}
}
}
