// Load data about the top node.
ChainParams = dbConn.Table<ChainState>().First();
+
+ genesisBlockCursor = dbConn.Query<CBlockStoreItem>("select * from [BlockStorage] where [Hash] = ?", (byte[])NetInfo.nHashGenesisBlock).First();
+ bestBlockCursor = dbConn.Query<CBlockStoreItem>("select * from [BlockStorage] where [Hash] = ?", ChainParams.HashBestChain).First();
}
}
{
var outPoint = txin.prevout;
+ if (inputs.ContainsKey(outPoint))
+ {
+ continue; // We have already seen this input.
+ }
+
if (!queued.ContainsKey(outPoint))
{
return false; // No such transaction
itemTemplate.prevoutStake = block.vtx[1].vin[0].prevout;
itemTemplate.nStakeTime = block.vtx[1].nTime;
+ itemTemplate.hashProofOfStake = mapProofOfStake[blockHash];
}
if (!itemTemplate.WriteToFile(ref fStreamReadWrite, ref block))
nTimeBestReceived = Interop.GetTime();
nTransactionsUpdated++;
+ if (!UpdateTopChain(cursor))
+ {
+ return false; // unable to set top chain node.
+ }
+
return true;
}
}
// Add to current best branch
- cursor.prev.next = cursor;
+ var prevCursor = cursor.prev;
+ prevCursor.next = cursor;
+
+ if (!UpdateDBCursor(ref prevCursor))
+ {
+ return false; // unable to update
+ }
// Delete redundant memory transactions
foreach (var tx in block.vtx)
private bool ConnectInputs(CTransaction tx, ref Dictionary<COutPoint, TxOutItem> inputs, ref Dictionary<COutPoint, TxOutItem> queued, ref CBlockStoreItem cursorBlock, bool fBlock, bool fScriptChecks, scriptflag scriptFlags)
{
- // Take over previous transactions' spent pointers
+ // Take over previous transactions' spent items
// fBlock is true when this is called from AcceptBlock when a new best-block is added to the blockchain
- // fMiner is true when called from the internal bitcoin miner
- // ... both are false when called from CTransaction::AcceptToMemoryPool
if (!tx.IsCoinBase)
{
var input = inputs[prevout];
CBlockStoreItem parentBlockCursor;
- var merkleItem = GetMerkleCursor(input, out parentBlockCursor);
- if (merkleItem == null)
+ if (input.nMerkleNodeID == -1)
{
- return false; // Unable to find merkle node
- }
+ // This input seems as is confirmed by the same block.
- // If prev is coinbase or coinstake, check that it's matured
- if (merkleItem.IsCoinBase || merkleItem.IsCoinStake)
- {
- if (cursorBlock.nHeight - parentBlockCursor.nHeight < NetInfo.nGeneratedMaturity)
+ if (!queued.ContainsKey(prevout))
{
- return false; // tried to spend non-matured generation input.
+ return false; // No such output has been queued by this block.
}
- }
- // check transaction timestamp
- if (merkleItem.nTime > tx.nTime)
+ // TODO: Ensure that neither coinbase nor coinstake outputs are
+ // available for spending in the generation block.
+ }
+ else
{
- return false; // transaction timestamp earlier than input transaction
+ // This input has been confirmed by one of the earlier accepted blocks.
+
+ var merkleItem = GetMerkleCursor(input, out parentBlockCursor);
+
+ if (merkleItem == null)
+ {
+ return false; // Unable to find merkle node
+ }
+
+ // If prev is coinbase or coinstake, check that it's matured
+ if (merkleItem.IsCoinBase || merkleItem.IsCoinStake)
+ {
+ if (cursorBlock.nHeight - parentBlockCursor.nHeight < NetInfo.nGeneratedMaturity)
+ {
+ return false; // tried to spend non-matured generation input.
+ }
+ }
+
+ // check transaction timestamp
+ if (merkleItem.nTime > tx.nTime)
+ {
+ return false; // transaction timestamp earlier than input transaction
+ }
}
// Check for negative or overflow input values
// Write back
if (fBlock)
{
- queued.Add(prevout, input);
+ if (input.nMerkleNodeID != -1)
+ {
+ // Input has been confirmed earlier.
+ queued.Add(prevout, input);
+ }
+ else
+ {
+ // Input has been confirmed by current block.
+ queued[prevout] = input;
+ }
}
}
/// <param name="block">Block reference</param>
/// <param name="nBlockPos">Block position reference</param>
/// <returns>Result of operation</returns>
- public bool GetBlockByTransactionID(uint256 TxID, ref CBlock block, ref long nBlockPos)
+ public bool GetBlockByTransactionID(uint256 TxID, out CBlock block, out long nBlockPos)
{
+ block = null;
+ nBlockPos = -1;
+
var queryResult = dbConn.Query<CBlockStoreItem>("select b.* from [BlockStorage] b left join [MerkleNodes] m on (b.[ItemID] = m.[nParentBlockID]) where m.[TransactionHash] = ?", (byte[])TxID);
if (queryResult.Count == 1)
{
CBlockStoreItem blockCursor = queryResult[0];
+ nBlockPos = blockCursor.nBlockPos;
+
return blockCursor.ReadFromFile(ref fStreamReadWrite, out block);
}
// TODO: proof-of-stake validation
uint256 hashProofOfStake = 0, targetProofOfStake = 0;
- if (!StakeModifier.CheckProofOfStake(block.vtx[1], block.header.nBits, ref hashProofOfStake, ref targetProofOfStake))
+ if (!StakeModifier.CheckProofOfStake(block.vtx[1], block.header.nBits, out hashProofOfStake, out targetProofOfStake))
{
return false; // do not error here as we expect this during initial block download
}
}
int nCount = blockMap.Count;
- Console.WriteLine("nCount={0}, Hash={1}, Time={2}", nCount, block.header.Hash, DateTime.Now); // Commit on each 100th block
+ Console.WriteLine("nCount={0}, Hash={1}, NumTx={2}, Time={3}", nCount, block.header.Hash, block.vtx.Length, DateTime.Now); // Commit on each 100th block
/*
if (nCount % 100 == 0 && nCount != 0)
git://git.novaco.in / NovacoinLibrary.git / blobdiff