// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
+// Copyright (c) 2011-2012 The PPCoin developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_MAIN_H
class CBlockIndex;
class CKeyItem;
class CReserveKey;
+class COutPoint;
class CAddress;
class CInv;
static const unsigned int MAX_BLOCK_SIZE_GEN = MAX_BLOCK_SIZE/2;
static const unsigned int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50;
static const unsigned int MAX_ORPHAN_TRANSACTIONS = MAX_BLOCK_SIZE/100;
-static const int64 MIN_TX_FEE = 50000;
-static const int64 MIN_RELAY_TX_FEE = 10000;
-static const int64 MAX_MONEY = 21000000 * COIN;
+static const int64 MIN_TX_FEE = CENT;
+static const int64 MIN_RELAY_TX_FEE = CENT;
+static const int64 MAX_MONEY = 2000000000 * COIN;
+static const int64 MAX_MINT_PROOF_OF_WORK = 9999 * COIN;
+static const int64 MIN_TXOUT_AMOUNT = MIN_TX_FEE;
inline bool MoneyRange(int64 nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
-static const int COINBASE_MATURITY = 100;
+static const int COINBASE_MATURITY_PPC = 500;
// Threshold for nLockTime: below this value it is interpreted as block number, otherwise as UNIX timestamp.
static const int LOCKTIME_THRESHOLD = 500000000; // Tue Nov 5 00:53:20 1985 UTC
#ifdef USE_UPNP
static const int fHaveUPnP = false;
#endif
+static const uint256 hashGenesisBlockOfficial("0x0000000032fe677166d54963b62a4677d8957e87c508eaa4fd7eb1c880cd27e3");
+static const uint256 hashGenesisBlockTestNet("0x00000001f757bb737f6596503e17cd17b0658ce630cc727c0cca81aec47c9f06");
extern CScript COINBASE_FLAGS;
extern CCriticalSection cs_main;
extern std::map<uint256, CBlockIndex*> mapBlockIndex;
+extern std::set<std::pair<COutPoint, unsigned int> > setStakeSeen;
extern uint256 hashGenesisBlock;
+extern unsigned int nStakeMinAge;
+extern int nCoinbaseMaturity;
extern CBlockIndex* pindexGenesisBlock;
extern int nBestHeight;
-extern CBigNum bnBestChainWork;
-extern CBigNum bnBestInvalidWork;
+extern CBigNum bnBestChainTrust;
+extern CBigNum bnBestInvalidTrust;
extern uint256 hashBestChain;
extern CBlockIndex* pindexBest;
extern unsigned int nTransactionsUpdated;
extern uint64 nLastBlockTx;
extern uint64 nLastBlockSize;
+extern int64 nLastCoinStakeSearchInterval;
extern const std::string strMessageMagic;
extern double dHashesPerSec;
extern int64 nHPSTimerStart;
extern int64 nTimeBestReceived;
extern CCriticalSection cs_setpwalletRegistered;
extern std::set<CWallet*> setpwalletRegistered;
+extern std::map<uint256, CBlock*> mapOrphanBlocks;
// Settings
extern int64 nTransactionFee;
bool ProcessMessages(CNode* pfrom);
bool SendMessages(CNode* pto, bool fSendTrickle);
void GenerateBitcoins(bool fGenerate, CWallet* pwallet);
-CBlock* CreateNewBlock(CReserveKey& reservekey);
+CBlock* CreateNewBlock(CWallet* pwallet, bool fProofOfStake=false);
void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce);
void FormatHashBuffers(CBlock* pblock, char* pmidstate, char* pdata, char* phash1);
bool CheckWork(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey);
bool CheckProofOfWork(uint256 hash, unsigned int nBits);
+int64 GetProofOfWorkReward(unsigned int nBits);
+int64 GetProofOfStakeReward(int64 nCoinAge);
unsigned int ComputeMinWork(unsigned int nBase, int64 nTime);
int GetNumBlocksOfPeers();
bool IsInitialBlockDownload();
std::string GetWarnings(std::string strFor);
-
+uint256 WantedByOrphan(const CBlock* pblockOrphan);
+const CBlockIndex* GetLastBlockIndex(const CBlockIndex* pindex, bool fProofOfStake);
+void BitcoinMiner(CWallet *pwallet, bool fProofOfStake);
return !(a == b);
}
+ std::string ToStringShort() const
+ {
+ return strprintf(" %s %d", prevout.hash.ToString().c_str(), prevout.n);
+ }
+
std::string ToString() const
{
std::string str;
return (nValue == -1);
}
+ void SetEmpty()
+ {
+ nValue = 0;
+ scriptPubKey.clear();
+ }
+
+ bool IsEmpty() const
+ {
+ return (nValue == 0 && scriptPubKey.empty());
+ }
+
uint256 GetHash() const
{
return SerializeHash(*this);
return !(a == b);
}
+ std::string ToStringShort() const
+ {
+ return strprintf(" out %s %s", FormatMoney(nValue).c_str(), scriptPubKey.ToString(true).c_str());
+ }
+
std::string ToString() const
{
+ if (IsEmpty()) return "CTxOut(empty)";
if (scriptPubKey.size() < 6)
return "CTxOut(error)";
- return strprintf("CTxOut(nValue=%"PRI64d".%08"PRI64d", scriptPubKey=%s)", nValue / COIN, nValue % COIN, scriptPubKey.ToString().substr(0,30).c_str());
+ return strprintf("CTxOut(nValue=%s, scriptPubKey=%s)", FormatMoney(nValue).c_str(), scriptPubKey.ToString().c_str());
}
void print() const
{
public:
int nVersion;
+ unsigned int nTime;
std::vector<CTxIn> vin;
std::vector<CTxOut> vout;
unsigned int nLockTime;
(
READWRITE(this->nVersion);
nVersion = this->nVersion;
+ READWRITE(nTime);
READWRITE(vin);
READWRITE(vout);
READWRITE(nLockTime);
void SetNull()
{
nVersion = 1;
+ nTime = GetAdjustedTime();
vin.clear();
vout.clear();
nLockTime = 0;
bool IsCoinBase() const
{
- return (vin.size() == 1 && vin[0].prevout.IsNull());
+ return (vin.size() == 1 && vin[0].prevout.IsNull() && vout.size() >= 1);
+ }
+
+ bool IsCoinStake() const
+ {
+ // ppcoin: the coin stake transaction is marked with the first output empty
+ return (vin.size() > 0 && (!vin[0].prevout.IsNull()) && vout.size() >= 2 && vout[0].IsEmpty());
}
/** Check for standard transaction types
return dPriority > COIN * 144 / 250;
}
- int64 GetMinFee(unsigned int nBlockSize=1, bool fAllowFree=true, enum GetMinFee_mode mode=GMF_BLOCK) const
+ int64 GetMinFee(unsigned int nBlockSize=1, bool fAllowFree=false, enum GetMinFee_mode mode=GMF_BLOCK) const
{
// Base fee is either MIN_TX_FEE or MIN_RELAY_TX_FEE
int64 nBaseFee = (mode == GMF_RELAY) ? MIN_RELAY_TX_FEE : MIN_TX_FEE;
friend bool operator==(const CTransaction& a, const CTransaction& b)
{
return (a.nVersion == b.nVersion &&
+ a.nTime == b.nTime &&
a.vin == b.vin &&
a.vout == b.vout &&
a.nLockTime == b.nLockTime);
}
+ std::string ToStringShort() const
+ {
+ std::string str;
+ str += strprintf("%s %s", GetHash().ToString().c_str(), IsCoinBase()? "base" : (IsCoinStake()? "stake" : "user"));
+ return str;
+ }
+
std::string ToString() const
{
std::string str;
- str += strprintf("CTransaction(hash=%s, ver=%d, vin.size=%d, vout.size=%d, nLockTime=%d)\n",
+ str += IsCoinBase()? "Coinbase" : (IsCoinStake()? "Coinstake" : "CTransaction");
+ str += strprintf("(hash=%s, nTime=%d, ver=%d, vin.size=%d, vout.size=%d, nLockTime=%d)\n",
GetHash().ToString().substr(0,10).c_str(),
+ nTime,
nVersion,
vin.size(),
vout.size(),
@param[in] fStrictPayToScriptHash true if fully validating p2sh transactions
@return Returns true if all checks succeed
*/
- bool ConnectInputs(MapPrevTx inputs,
+ bool ConnectInputs(CTxDB& txdb, MapPrevTx inputs,
std::map<uint256, CTxIndex>& mapTestPool, const CDiskTxPos& posThisTx,
const CBlockIndex* pindexBlock, bool fBlock, bool fMiner, bool fStrictPayToScriptHash=true);
bool ClientConnectInputs();
bool CheckTransaction() const;
bool AcceptToMemoryPool(CTxDB& txdb, bool fCheckInputs=true, bool* pfMissingInputs=NULL);
+ bool GetCoinAge(CTxDB& txdb, uint64& nCoinAge) const; // ppcoin: get transaction coin age
+ bool CheckProofOfStake(unsigned int nBits) const;
protected:
const CTxOut& GetOutputFor(const CTxIn& input, const MapPrevTx& inputs) const;
// network and disk
std::vector<CTransaction> vtx;
+ // ppcoin: block signature - signed by coin base txout[0]'s owner
+ std::vector<unsigned char> vchBlockSig;
+
// memory only
mutable std::vector<uint256> vMerkleTree;
READWRITE(nBits);
READWRITE(nNonce);
- // ConnectBlock depends on vtx being last so it can calculate offset
+ // ConnectBlock depends on vtx following header to generate CDiskTxPos
if (!(nType & (SER_GETHASH|SER_BLOCKHEADERONLY)))
+ {
READWRITE(vtx);
+ READWRITE(vchBlockSig);
+ }
else if (fRead)
+ {
const_cast<CBlock*>(this)->vtx.clear();
+ const_cast<CBlock*>(this)->vchBlockSig.clear();
+ }
)
void SetNull()
nBits = 0;
nNonce = 0;
vtx.clear();
+ vchBlockSig.clear();
vMerkleTree.clear();
nDoS = 0;
}
void UpdateTime(const CBlockIndex* pindexPrev);
+ // ppcoin: two types of block: proof-of-work or proof-of-stake
+ bool IsProofOfStake() const
+ {
+ return (vtx.size() > 1 && vtx[1].IsCoinStake());
+ }
+
+ bool IsProofOfWork() const
+ {
+ return !IsProofOfStake();
+ }
+
+ std::pair<COutPoint, unsigned int> GetProofOfStake() const
+ {
+ return IsProofOfStake()? std::make_pair(vtx[1].vin[0].prevout, vtx[1].nTime) : std::make_pair(COutPoint(), (unsigned int)0);
+ }
+
+ // ppcoin: get max transaction timestamp
+ int64 GetMaxTransactionTime() const
+ {
+ int64 maxTransactionTime = 0;
+ BOOST_FOREACH(const CTransaction& tx, vtx)
+ maxTransactionTime = std::max(maxTransactionTime, (int64)tx.nTime);
+ return maxTransactionTime;
+ }
uint256 BuildMerkleTree() const
{
return error("CBlock::WriteToDisk() : AppendBlockFile failed");
// Write index header
+ unsigned char pchMessageStart[4];
+ GetMessageStart(pchMessageStart, true);
unsigned int nSize = fileout.GetSerializeSize(*this);
fileout << FLATDATA(pchMessageStart) << nSize;
}
// Check the header
- if (!CheckProofOfWork(GetHash(), nBits))
+ if (fReadTransactions && IsProofOfWork() && !CheckProofOfWork(GetHash(), nBits))
return error("CBlock::ReadFromDisk() : errors in block header");
return true;
void print() const
{
- printf("CBlock(hash=%s, ver=%d, hashPrevBlock=%s, hashMerkleRoot=%s, nTime=%u, nBits=%08x, nNonce=%u, vtx=%d)\n",
+ printf("CBlock(hash=%s, ver=%d, hashPrevBlock=%s, hashMerkleRoot=%s, nTime=%u, nBits=%08x, nNonce=%u, vtx=%d, vchBlockSig=%s)\n",
GetHash().ToString().substr(0,20).c_str(),
nVersion,
hashPrevBlock.ToString().substr(0,20).c_str(),
hashMerkleRoot.ToString().substr(0,10).c_str(),
nTime, nBits, nNonce,
- vtx.size());
+ vtx.size(),
+ HexStr(vchBlockSig.begin(), vchBlockSig.end()).c_str());
for (unsigned int i = 0; i < vtx.size(); i++)
{
printf(" ");
bool AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos);
bool CheckBlock() const;
bool AcceptBlock();
+ bool GetCoinAge(uint64& nCoinAge) const; // ppcoin: calculate total coin age spent in block
+ bool SignBlock(const CKeyStore& keystore);
+ bool CheckBlockSignature() const;
private:
bool SetBestChainInner(CTxDB& txdb, CBlockIndex *pindexNew);
CBlockIndex* pnext;
unsigned int nFile;
unsigned int nBlockPos;
+ CBigNum bnChainTrust; // ppcoin: trust score of block chain
int nHeight;
- CBigNum bnChainWork;
+ int64 nMint;
+ int64 nMoneySupply;
+ bool fProofOfStake; // ppcoin: is the block of proof-of-stake type
+ COutPoint prevoutStake;
+ unsigned int nStakeTime;
// block header
int nVersion;
nFile = 0;
nBlockPos = 0;
nHeight = 0;
- bnChainWork = 0;
+ bnChainTrust = 0;
+ nMint = 0;
+ nMoneySupply = 0;
+ fProofOfStake = true;
+ prevoutStake.SetNull();
+ nStakeTime = 0;
nVersion = 0;
hashMerkleRoot = 0;
nFile = nFileIn;
nBlockPos = nBlockPosIn;
nHeight = 0;
- bnChainWork = 0;
+ bnChainTrust = 0;
+ nMint = 0;
+ nMoneySupply = 0;
+ fProofOfStake = block.IsProofOfStake();
+ if (fProofOfStake)
+ {
+ prevoutStake = block.vtx[1].vin[0].prevout;
+ nStakeTime = block.vtx[1].nTime;
+ }
+ else
+ {
+ prevoutStake.SetNull();
+ nStakeTime = 0;
+ }
nVersion = block.nVersion;
hashMerkleRoot = block.hashMerkleRoot;
return (int64)nTime;
}
- CBigNum GetBlockWork() const
+ CBigNum GetBlockTrust() const
{
CBigNum bnTarget;
bnTarget.SetCompact(nBits);
if (bnTarget <= 0)
return 0;
- return (CBigNum(1)<<256) / (bnTarget+1);
+ return (fProofOfStake? (CBigNum(1)<<256) / (bnTarget+1) : 1);
}
bool IsInMainChain() const
bool CheckIndex() const
{
- return CheckProofOfWork(GetBlockHash(), nBits);
+ return IsProofOfWork() ? CheckProofOfWork(GetBlockHash(), nBits) : true;
}
bool EraseBlockFromDisk()
return pindex->GetMedianTimePast();
}
+ bool IsProofOfWork() const
+ {
+ return !fProofOfStake;
+ }
+ bool IsProofOfStake() const
+ {
+ return fProofOfStake;
+ }
std::string ToString() const
{
- return strprintf("CBlockIndex(nprev=%08x, pnext=%08x, nFile=%d, nBlockPos=%-6d nHeight=%d, merkle=%s, hashBlock=%s)",
+ return strprintf("CBlockIndex(nprev=%08x, pnext=%08x, nFile=%d, nBlockPos=%-6d nHeight=%d, nMint=%s, nMoneySupply=%s, fProofOfStake=%d prevoutStake=(%s), nStakeTime=%d merkle=%s, hashBlock=%s)",
pprev, pnext, nFile, nBlockPos, nHeight,
+ FormatMoney(nMint).c_str(), FormatMoney(nMoneySupply).c_str(),
+ fProofOfStake, prevoutStake.ToString().c_str(), nStakeTime,
hashMerkleRoot.ToString().substr(0,10).c_str(),
GetBlockHash().ToString().substr(0,20).c_str());
}
READWRITE(nFile);
READWRITE(nBlockPos);
READWRITE(nHeight);
+ READWRITE(nMint);
+ READWRITE(nMoneySupply);
+ READWRITE(fProofOfStake);
+ if (fProofOfStake)
+ {
+ READWRITE(prevoutStake);
+ READWRITE(nStakeTime);
+ }
+ else if (fRead)
+ {
+ const_cast<CDiskBlockIndex*>(this)->prevoutStake.SetNull();
+ const_cast<CDiskBlockIndex*>(this)->nStakeTime = 0;
+ }
// block header
READWRITE(this->nVersion);
bool CheckSignature()
{
CKey key;
- if (!key.SetPubKey(ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284")))
+ if (!key.SetPubKey(ParseHex("04a0a849dd49b113d3179a332dd77715c43be4d0076e2f19e66de23dd707e56630f792f298dfd209bf042bb3561f4af6983f3d81e439737ab0bf7f898fecd21aab")))
return error("CAlert::CheckSignature() : SetPubKey failed");
if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
return error("CAlert::CheckSignature() : verify signature failed");
git://git.novaco.in / novacoin.git / blobdiff