// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2012 The Bitcoin developers
-// Copyright (c) 2011-2013 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
#define BITCOIN_MAIN_H
#include "bignum.h"
+#include "sync.h"
#include "net.h"
#include "script.h"
-#include "scrypt_mine.h"
-
-#ifdef WIN32
-#include <io.h> /* for _commit */
-#endif
+#include "scrypt.h"
+#include "zerocoin/Zerocoin.h"
#include <list>
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 unsigned int MAX_INV_SZ = 50000;
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 = 100 * COIN;
+static const int64 MAX_MINT_PROOF_OF_STAKE = 1 * COIN;
static const int64 MIN_TXOUT_AMOUNT = MIN_TX_FEE;
+
+static const unsigned int ENTROPY_SWITCH_TIME = 1362791041; // Sat, 09 Mar 2013 01:04:01 GMT
+static const unsigned int STAKE_SWITCH_TIME = 1371686400; // Thu, 20 Jun 2013 00:00:00 GMT
+static const unsigned int TARGETS_SWITCH_TIME = 1374278400; // Sat, 20 Jul 2013 00:00:00 GMT
+static const unsigned int CHAINCHECKS_SWITCH_TIME = 1379635200; // Fri, 20 Sep 2013 00:00:00 GMT
+static const unsigned int STAKECURVE_SWITCH_TIME = 1382227200; // Sun, 20 Oct 2013 00:00:00 GMT
+static const unsigned int OUTPUT_SWITCH_TIME = 1398916800; // Thu, 01 May 2014 04:00:00 GMT
+
+
inline bool MoneyRange(int64 nValue) { return (nValue >= 0 && nValue <= MAX_MONEY); }
-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
-static const int STAKE_TARGET_SPACING = 10 * 60; // 10-minute block spacing
-static const int STAKE_MIN_AGE = 60 * 60 * 24 * 30; // minimum age for coin age
-static const int STAKE_MAX_AGE = 60 * 60 * 24 * 90; // stake age of full weight
+static const unsigned int LOCKTIME_THRESHOLD = 500000000; // Tue Nov 5 00:53:20 1985 UTC
#ifdef USE_UPNP
static const int fHaveUPnP = true;
static const int fHaveUPnP = false;
#endif
-static const uint256 hashGenesisBlockOfficial("0x00000a060336cbb72fe969666d337b87198b1add2abaa59cca226820b32933a4");
-static const uint256 hashGenesisBlockTestNet("0x00000a060336cbb72fe969666d337b87198b1add2abaa59cca226820b32933a4");
+static const uint256 hashGenesisBlock("0x00000a060336cbb72fe969666d337b87198b1add2abaa59cca226820b32933a4");
+static const uint256 hashGenesisBlockTestNet("0x000c763e402f2436da9ed36c7286f62c3f6e5dbafce9ff289bd43d7459327eb");
-static const int64 nMaxClockDrift = 2 * 60 * 60; // two hours
+inline int64 PastDrift(int64 nTime) { return nTime - 2 * 60 * 60; } // up to 2 hours from the past
+inline int64 FutureDrift(int64 nTime) { return nTime + 2 * 60 * 60; } // up to 2 hours from the future
+extern libzerocoin::Params* ZCParams;
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 CBlockIndex* pindexGenesisBlock;
extern unsigned int nStakeMinAge;
+extern unsigned int nNodeLifespan;
extern int nCoinbaseMaturity;
-extern CBlockIndex* pindexGenesisBlock;
extern int nBestHeight;
-extern CBigNum bnBestChainTrust;
-extern CBigNum bnBestInvalidTrust;
+extern uint256 nBestChainTrust;
+extern uint256 nBestInvalidTrust;
extern uint256 hashBestChain;
extern CBlockIndex* pindexBest;
extern unsigned int nTransactionsUpdated;
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 unsigned char pchMessageStart[4];
extern std::map<uint256, CBlock*> mapOrphanBlocks;
// Settings
extern int64 nTransactionFee;
+extern int64 nMinimumInputValue;
+extern bool fUseFastIndex;
+extern unsigned int nDerivationMethodIndex;
-
-
-
+// Minimum disk space required - used in CheckDiskSpace()
+static const uint64 nMinDiskSpace = 52428800;
class CReserveKey;
class CTxDB;
class CTxIndex;
+class CDiskBlockPos;
void RegisterWallet(CWallet* pwalletIn);
void UnregisterWallet(CWallet* pwalletIn);
+void SyncWithWallets(const CTransaction& tx, const CBlock* pblock = NULL, bool fUpdate = false, bool fConnect = true);
bool ProcessBlock(CNode* pfrom, CBlock* pblock);
bool CheckDiskSpace(uint64 nAdditionalBytes=0);
-FILE* OpenBlockFile(unsigned int nFile, unsigned int nBlockPos, const char* pszMode="rb");
-FILE* AppendBlockFile(unsigned int& nFileRet);
+FILE* OpenBlockFile(const CDiskBlockPos &pos, const char* pszMode="rb");
bool LoadBlockIndex(bool fAllowNew=true);
void PrintBlockTree();
+CBlockIndex* FindBlockByHeight(int nHeight);
bool ProcessMessages(CNode* pfrom);
bool SendMessages(CNode* pto, bool fSendTrickle);
-void GenerateBitcoins(bool fGenerate, CWallet* pwallet);
-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 LoadExternalBlockFile(FILE* fileIn);
+
bool CheckProofOfWork(uint256 hash, unsigned int nBits);
+unsigned int GetNextTargetRequired(const CBlockIndex* pindexLast, bool fProofOfStake);
int64 GetProofOfWorkReward(unsigned int nBits);
-int64 GetProofOfStakeReward(int64 nCoinAge);
+int64 GetProofOfStakeReward(int64 nCoinAge, unsigned int nBits, unsigned int nTime, bool bCoinYearOnly=false);
unsigned int ComputeMinWork(unsigned int nBase, int64 nTime);
+unsigned int ComputeMinStake(unsigned int nBase, int64 nTime, unsigned int nBlockTime);
int GetNumBlocksOfPeers();
bool IsInitialBlockDownload();
std::string GetWarnings(std::string strFor);
+bool GetTransaction(const uint256 &hash, CTransaction &tx, uint256 &hashBlock);
uint256 WantedByOrphan(const CBlock* pblockOrphan);
const CBlockIndex* GetLastBlockIndex(const CBlockIndex* pindex, bool fProofOfStake);
-void BitcoinMiner(CWallet *pwallet, bool fProofOfStake);
+void StakeMiner(CWallet *pwallet);
void ResendWalletTransactions();
+bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);
+
+class CDiskBlockPos
+{
+public:
+ int nHeight;
+ int nAlternative;
+
+ CDiskBlockPos() {
+ SetNull();
+ }
+ CDiskBlockPos(int nHeightIn, int nAlternativeIn = 0) {
+ nHeight = nHeightIn;
+ nAlternative = nAlternativeIn;
+ }
+ std::string GetAlternative() const {
+ char c[9]={0,0,0,0,0,0,0,0,0};
+ char *cp = &c[8];
+ unsigned int n = nAlternative;
+ while (n > 0 && cp>c) {
+ n--;
+ *(--cp) = 'a' + (n % 26);
+ n /= 26;
+ }
+ return std::string(cp);
+ }
+ boost::filesystem::path GetDirectory(const boost::filesystem::path &base) const {
+ assert(nHeight != -1);
+ return base / strprintf("era%02u", nHeight / 210000) /
+ strprintf("cycle%04u", nHeight / 2016);
+ }
+ boost::filesystem::path GetFileName(const boost::filesystem::path &base) const {
+ return GetDirectory(base) / strprintf("%08u%s.blk", nHeight, GetAlternative().c_str());
+ }
+ // TODO: make thread-safe (lockfile, atomic file creation, ...?)
+ void MakeUnique(const boost::filesystem::path &base) {
+ while (boost::filesystem::exists(GetFileName(base)))
+ nAlternative++;
+ }
+
+ IMPLEMENT_SERIALIZE(({
+ CDiskBlockPos *me = const_cast<CDiskBlockPos*>(this);
+ if (!fRead) {
+ unsigned int nCode = (nHeight + 1) * 2 + (nAlternative > 0);
+ READWRITE(VARINT(nCode));
+ if (nAlternative > 0) {
+ unsigned int nAlt = nAlternative - 1;
+ READWRITE(VARINT(nAlt));
+ }
+ } else {
+ unsigned int nCode = 0;
+ READWRITE(VARINT(nCode));
+ me->nHeight = (nCode / 2) - 1;
+ if (nCode & 1) {
+ unsigned int nAlt = 0;
+ READWRITE(VARINT(nAlt));
+ me->nAlternative = 1 + nAlt;
+ } else {
+ me->nAlternative = 0;
+ }
+ }
+ });)
+
+ friend bool operator==(const CDiskBlockPos &a, const CDiskBlockPos &b) {
+ return ((a.nHeight == b.nHeight) && (a.nAlternative == b.nAlternative));
+ }
+
+ friend bool operator!=(const CDiskBlockPos &a, const CDiskBlockPos &b) {
+ return !(a == b);
+ }
+
+ void SetNull() { nHeight = -1; nAlternative = 0; }
+ bool IsNull() const { return ((nHeight == -1) && (nAlternative == 0)); }
+
+ void SetMemPool() { nHeight = -1; nAlternative = -1; }
+ bool IsMemPool() const { return ((nHeight == -1) && (nAlternative == -1)); }
+};
-bool GetWalletFile(CWallet* pwallet, std::string &strWalletFileOut);
/** Position on disk for a particular transaction. */
class CDiskTxPos
{
public:
- unsigned int nFile;
- unsigned int nBlockPos;
+ CDiskBlockPos blockPos;
unsigned int nTxPos;
- CDiskTxPos()
+ CDiskTxPos(bool fInMemPool = false)
{
SetNull();
- }
+ if (fInMemPool)
+ blockPos.SetMemPool();
- CDiskTxPos(unsigned int nFileIn, unsigned int nBlockPosIn, unsigned int nTxPosIn)
- {
- nFile = nFileIn;
- nBlockPos = nBlockPosIn;
- nTxPos = nTxPosIn;
}
- IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
- void SetNull() { nFile = -1; nBlockPos = 0; nTxPos = 0; }
- bool IsNull() const { return (nFile == -1); }
+ CDiskTxPos(const CDiskBlockPos &block, unsigned int nTxPosIn) : blockPos(block), nTxPos(nTxPosIn) { }
+
+ IMPLEMENT_SERIALIZE(
+ READWRITE(blockPos);
+ READWRITE(VARINT(nTxPos));
+ )
+
+ void SetNull() { blockPos.SetNull(); nTxPos = 0; }
+ bool IsNull() const { return blockPos.IsNull(); }
+ bool IsMemPool() const { return blockPos.IsMemPool(); }
friend bool operator==(const CDiskTxPos& a, const CDiskTxPos& b)
{
- return (a.nFile == b.nFile &&
- a.nBlockPos == b.nBlockPos &&
- a.nTxPos == b.nTxPos);
+ return (a.blockPos == b.blockPos &&
+ a.nTxPos == b.nTxPos);
}
friend bool operator!=(const CDiskTxPos& a, const CDiskTxPos& b)
return !(a == b);
}
+
std::string ToString() const
{
if (IsNull())
return "null";
+ else if (blockPos.IsMemPool())
+ return "mempool";
else
- return strprintf("(nFile=%d, nBlockPos=%d, nTxPos=%d)", nFile, nBlockPos, nTxPos);
+ return strprintf("(%s, nTxPos=%u)", blockPos.GetFileName("").string().c_str(), nTxPos);
}
void print() const
CInPoint() { SetNull(); }
CInPoint(CTransaction* ptxIn, unsigned int nIn) { ptx = ptxIn; n = nIn; }
- void SetNull() { ptx = NULL; n = -1; }
- bool IsNull() const { return (ptx == NULL && n == -1); }
+ void SetNull() { ptx = NULL; n = (unsigned int) -1; }
+ bool IsNull() const { return (ptx == NULL && n == (unsigned int) -1); }
};
COutPoint() { SetNull(); }
COutPoint(uint256 hashIn, unsigned int nIn) { hash = hashIn; n = nIn; }
IMPLEMENT_SERIALIZE( READWRITE(FLATDATA(*this)); )
- void SetNull() { hash = 0; n = -1; }
- bool IsNull() const { return (hash == 0 && n == -1); }
+ void SetNull() { hash = 0; n = (unsigned int) -1; }
+ bool IsNull() const { return (hash == 0 && n == (unsigned int) -1); }
friend bool operator<(const COutPoint& a, const COutPoint& b)
{
std::string ToString() const
{
- return strprintf("COutPoint(%s, %d)", hash.ToString().substr(0,10).c_str(), n);
+ return strprintf("COutPoint(%s, %u)", hash.ToString().substr(0,10).c_str(), n);
}
void print() const
scriptPubKey.clear();
}
- bool IsNull()
+ bool IsNull() const
{
return (nValue == -1);
}
class CTransaction
{
public:
+ static const int CURRENT_VERSION=1;
int nVersion;
unsigned int nTime;
std::vector<CTxIn> vin;
void SetNull()
{
- nVersion = 1;
+ nVersion = CTransaction::CURRENT_VERSION;
nTime = GetAdjustedTime();
vin.clear();
vout.clear();
return dPriority > COIN * 144 / 250;
}
- 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;
-
- unsigned int nBytes = ::GetSerializeSize(*this, SER_NETWORK, PROTOCOL_VERSION);
- unsigned int nNewBlockSize = nBlockSize + nBytes;
- int64 nMinFee = (1 + (int64)nBytes / 1000) * nBaseFee;
-
- if (fAllowFree)
- {
- if (nBlockSize == 1)
- {
- // Transactions under 10K are free
- // (about 4500bc if made of 50bc inputs)
- if (nBytes < 10000)
- nMinFee = 0;
- }
- else
- {
- // Free transaction area
- if (nNewBlockSize < 27000)
- nMinFee = 0;
- }
- }
-
- // To limit dust spam, require MIN_TX_FEE/MIN_RELAY_TX_FEE if any output is less than 0.01
- if (nMinFee < nBaseFee)
- {
- BOOST_FOREACH(const CTxOut& txout, vout)
- if (txout.nValue < CENT)
- nMinFee = nBaseFee;
- }
-
- // Raise the price as the block approaches full
- if (nBlockSize != 1 && nNewBlockSize >= MAX_BLOCK_SIZE_GEN/2)
- {
- if (nNewBlockSize >= MAX_BLOCK_SIZE_GEN)
- return MAX_MONEY;
- nMinFee *= MAX_BLOCK_SIZE_GEN / (MAX_BLOCK_SIZE_GEN - nNewBlockSize);
- }
-
- if (!MoneyRange(nMinFee))
- nMinFee = MAX_MONEY;
- return nMinFee;
- }
-
+ int64 GetMinFee(unsigned int nBlockSize=1, bool fAllowFree=false, enum GetMinFee_mode mode=GMF_BLOCK, unsigned int nBytes = 0) const;
bool ReadFromDisk(CDiskTxPos pos, FILE** pfileRet=NULL)
{
- CAutoFile filein = CAutoFile(OpenBlockFile(pos.nFile, 0, pfileRet ? "rb+" : "rb"), SER_DISK, CLIENT_VERSION);
+ CAutoFile filein = CAutoFile(OpenBlockFile(pos.blockPos, pfileRet ? "rb+" : "rb"), SER_DISK, CLIENT_VERSION);
if (!filein)
return error("CTransaction::ReadFromDisk() : OpenBlockFile failed");
return !(a == b);
}
-
std::string ToStringShort() const
{
std::string str;
{
std::string str;
str += IsCoinBase()? "Coinbase" : (IsCoinStake()? "Coinstake" : "CTransaction");
- str += strprintf("(hash=%s, nTime=%d, ver=%d, vin.size=%d, vout.size=%d, nLockTime=%d)\n",
+ str += strprintf("(hash=%s, nTime=%d, ver=%d, vin.size=%"PRIszu", vout.size=%"PRIszu", nLockTime=%d)\n",
GetHash().ToString().substr(0,10).c_str(),
nTime,
nVersion,
};
+/** wrapper for CTxOut that provides a more compact serialization */
+class CTxOutCompressor
+{
+private:
+ CTxOut &txout;
+
+public:
+ static uint64 CompressAmount(uint64 nAmount);
+ static uint64 DecompressAmount(uint64 nAmount);
+
+ CTxOutCompressor(CTxOut &txoutIn) : txout(txoutIn) { }
+
+ IMPLEMENT_SERIALIZE(({
+ if (!fRead) {
+ uint64 nVal = CompressAmount(txout.nValue);
+ READWRITE(VARINT(nVal));
+ } else {
+ uint64 nVal = 0;
+ READWRITE(VARINT(nVal));
+ txout.nValue = DecompressAmount(nVal);
+ }
+ CScriptCompressor cscript(REF(txout.scriptPubKey));
+ READWRITE(cscript);
+ });)
+};
+
+/** Undo information for a CTxIn
+ *
+ * Contains the prevout's CTxOut being spent, and if this was the
+ * last output of the affected transaction, its metadata as well
+ * (coinbase or not, height, transaction version)
+ */
+class CTxInUndo
+{
+public:
+ CTxOut txout; // the txout data before being spent
+ bool fCoinBase; // if the outpoint was the last unspent: whether it belonged to a coinbase
+ unsigned int nHeight; // if the outpoint was the last unspent: its height
+ int nVersion; // if the outpoint was the last unspent: its version
+
+ CTxInUndo() : txout(), fCoinBase(false), nHeight(0), nVersion(0) {}
+ CTxInUndo(const CTxOut &txoutIn, bool fCoinBaseIn = false, unsigned int nHeightIn = 0, int nVersionIn = 0) : txout(txoutIn), fCoinBase(fCoinBaseIn), nHeight(nHeightIn), nVersion(nVersionIn) { }
+
+ unsigned int GetSerializeSize(int nType, int nVersion) const {
+ return ::GetSerializeSize(VARINT(nHeight*2+(fCoinBase ? 1 : 0)), nType, nVersion) +
+ (nHeight > 0 ? ::GetSerializeSize(VARINT(this->nVersion), nType, nVersion) : 0) +
+ ::GetSerializeSize(CTxOutCompressor(REF(txout)), nType, nVersion);
+ }
+
+ template<typename Stream>
+ void Serialize(Stream &s, int nType, int nVersion) const {
+ ::Serialize(s, VARINT(nHeight*2+(fCoinBase ? 1 : 0)), nType, nVersion);
+ if (nHeight > 0)
+ ::Serialize(s, VARINT(this->nVersion), nType, nVersion);
+ ::Serialize(s, CTxOutCompressor(REF(txout)), nType, nVersion);
+ }
+
+ template<typename Stream>
+ void Unserialize(Stream &s, int nType, int nVersion) {
+ unsigned int nCode = 0;
+ ::Unserialize(s, VARINT(nCode), nType, nVersion);
+ nHeight = nCode / 2;
+ fCoinBase = nCode & 1;
+ if (nHeight > 0)
+ ::Unserialize(s, VARINT(this->nVersion), nType, nVersion);
+ ::Unserialize(s, REF(CTxOutCompressor(REF(txout))), nType, nVersion);
+ }
+};
+
+/** Undo information for a CTransaction */
+class CTxUndo
+{
+public:
+ std::vector<CTxInUndo> vprevout;
+
+ IMPLEMENT_SERIALIZE(
+ READWRITE(vprevout);
+ )
+};
+
+
+/** pruned version of CTransaction: only retains metadata and unspent transaction outputs
+ *
+ * Serialized format:
+ * - VARINT(nVersion)
+ * - VARINT(nCode)
+ * - unspentness bitvector, for vout[2] and further; least significant byte first
+ * - the non-spent CTxOuts (via CTxOutCompressor)
+ * - VARINT(nHeight)
+ *
+ * The nCode value consists of:
+ * - bit 1: IsCoinBase()
+ * - bit 2: vout[0] is not spent
+ * - bit 4: vout[1] is not spent
+ * - The higher bits encode N, the number of non-zero bytes in the following bitvector.
+ * - In case both bit 2 and bit 4 are unset, they encode N-1, as there must be at
+ * least one non-spent output).
+ *
+ * Example: 0104835800816115944e077fe7c803cfa57f29b36bf87c1d358bb85e
+ * <><><--------------------------------------------><---->
+ * | \ | /
+ * version code vout[1] height
+ *
+ * - version = 1
+ * - code = 4 (vout[1] is not spent, and 0 non-zero bytes of bitvector follow)
+ * - unspentness bitvector: as 0 non-zero bytes follow, it has length 0
+ * - vout[1]: 835800816115944e077fe7c803cfa57f29b36bf87c1d35
+ * * 8358: compact amount representation for 60000000000 (600 BTC)
+ * * 00: special txout type pay-to-pubkey-hash
+ * * 816115944e077fe7c803cfa57f29b36bf87c1d35: address uint160
+ * - height = 203998
+ *
+ *
+ * Example: 0109044086ef97d5790061b01caab50f1b8e9c50a5057eb43c2d9563a4eebbd123008c988f1a4a4de2161e0f50aac7f17e7f9555caa486af3b
+ * <><><--><--------------------------------------------------><----------------------------------------------><---->
+ * / \ \ | | /
+ * version code unspentness vout[4] vout[16] height
+ *
+ * - version = 1
+ * - code = 9 (coinbase, neither vout[0] or vout[1] are unspent,
+ * 2 (1, +1 because both bit 2 and bit 4 are unset) non-zero bitvector bytes follow)
+ * - unspentness bitvector: bits 2 (0x04) and 14 (0x4000) are set, so vout[2+2] and vout[14+2] are unspent
+ * - vout[4]: 86ef97d5790061b01caab50f1b8e9c50a5057eb43c2d9563a4ee
+ * * 86ef97d579: compact amount representation for 234925952 (2.35 BTC)
+ * * 00: special txout type pay-to-pubkey-hash
+ * * 61b01caab50f1b8e9c50a5057eb43c2d9563a4ee: address uint160
+ * - vout[16]: bbd123008c988f1a4a4de2161e0f50aac7f17e7f9555caa4
+ * * bbd123: compact amount representation for 110397 (0.001 BTC)
+ * * 00: special txout type pay-to-pubkey-hash
+ * * 8c988f1a4a4de2161e0f50aac7f17e7f9555caa4: address uint160
+ * - height = 120891
+ */
+class CCoins
+{
+public:
+ // whether transaction is a coinbase
+ bool fCoinBase;
+
+ // unspent transaction outputs; spent outputs are .IsNull(); spent outputs at the end of the array are dropped
+ std::vector<CTxOut> vout;
+
+ // at which height this transaction was included in the active blockchain
+ int nHeight;
+
+ // version of the CTransaction; accesses to this value should probably check for nHeight as well,
+ // as new tx version will probably only be introduced at certain heights
+ int nVersion;
+
+ // construct a CCoins from a CTransaction, at a given height
+ CCoins(const CTransaction &tx, int nHeightIn) : fCoinBase(tx.IsCoinBase()), vout(tx.vout), nHeight(nHeightIn), nVersion(tx.nVersion) { }
+
+ // empty constructor
+ CCoins() : fCoinBase(false), vout(0), nHeight(0), nVersion(0) { }
+
+ // remove spent outputs at the end of vout
+ void Cleanup() {
+ while (vout.size() > 0 && vout.back().IsNull())
+ vout.pop_back();
+ }
+
+ // equality test
+ friend bool operator==(const CCoins &a, const CCoins &b) {
+ return a.fCoinBase == b.fCoinBase &&
+ a.nHeight == b.nHeight &&
+ a.nVersion == b.nVersion &&
+ a.vout == b.vout;
+ }
+ friend bool operator!=(const CCoins &a, const CCoins &b) {
+ return !(a == b);
+ }
+
+ // calculate number of bytes for the bitmask, and its number of non-zero bytes
+ // each bit in the bitmask represents the availability of one output, but the
+ // availabilities of the first two outputs are encoded separately
+ void CalcMaskSize(unsigned int &nBytes, unsigned int &nNonzeroBytes) const {
+ unsigned int nLastUsedByte = 0;
+ for (unsigned int b = 0; 2+b*8 < vout.size(); b++) {
+ bool fZero = true;
+ for (unsigned int i = 0; i < 8 && 2+b*8+i < vout.size(); i++) {
+ if (!vout[2+b*8+i].IsNull()) {
+ fZero = false;
+ continue;
+ }
+ }
+ if (!fZero) {
+ nLastUsedByte = b + 1;
+ nNonzeroBytes++;
+ }
+ }
+ nBytes += nLastUsedByte;
+ }
+
+ bool IsCoinBase() const {
+ return fCoinBase;
+ }
+
+ unsigned int GetSerializeSize(int nType, int nVersion) const {
+ unsigned int nSize = 0;
+ unsigned int nMaskSize = 0, nMaskCode = 0;
+ CalcMaskSize(nMaskSize, nMaskCode);
+ bool fFirst = vout.size() > 0 && !vout[0].IsNull();
+ bool fSecond = vout.size() > 1 && !vout[1].IsNull();
+ assert(fFirst || fSecond || nMaskCode);
+ unsigned int nCode = 8*(nMaskCode - (fFirst || fSecond ? 0 : 1)) + (fCoinBase ? 1 : 0) + (fFirst ? 2 : 0) + (fSecond ? 4 : 0);
+ // version
+ nSize += ::GetSerializeSize(VARINT(this->nVersion), nType, nVersion);
+ // size of header code
+ nSize += ::GetSerializeSize(VARINT(nCode), nType, nVersion);
+ // spentness bitmask
+ nSize += nMaskSize;
+ // txouts themself
+ for (unsigned int i = 0; i < vout.size(); i++)
+ if (!vout[i].IsNull())
+ nSize += ::GetSerializeSize(CTxOutCompressor(REF(vout[i])), nType, nVersion);
+ // height
+ nSize += ::GetSerializeSize(VARINT(nHeight), nType, nVersion);
+ return nSize;
+ }
+
+ template<typename Stream>
+ void Serialize(Stream &s, int nType, int nVersion) const {
+ unsigned int nMaskSize = 0, nMaskCode = 0;
+ CalcMaskSize(nMaskSize, nMaskCode);
+ bool fFirst = vout.size() > 0 && !vout[0].IsNull();
+ bool fSecond = vout.size() > 1 && !vout[1].IsNull();
+ assert(fFirst || fSecond || nMaskCode);
+ unsigned int nCode = 8*(nMaskCode - (fFirst || fSecond ? 0 : 1)) + (fCoinBase ? 1 : 0) + (fFirst ? 2 : 0) + (fSecond ? 4 : 0);
+ // version
+ ::Serialize(s, VARINT(this->nVersion), nType, nVersion);
+ // header code
+ ::Serialize(s, VARINT(nCode), nType, nVersion);
+ // spentness bitmask
+ for (unsigned int b = 0; b<nMaskSize; b++) {
+ unsigned char chAvail = 0;
+ for (unsigned int i = 0; i < 8 && 2+b*8+i < vout.size(); i++)
+ if (!vout[2+b*8+i].IsNull())
+ chAvail |= (1 << i);
+ ::Serialize(s, chAvail, nType, nVersion);
+ }
+ // txouts themself
+ for (unsigned int i = 0; i < vout.size(); i++) {
+ if (!vout[i].IsNull())
+ ::Serialize(s, CTxOutCompressor(REF(vout[i])), nType, nVersion);
+ }
+ // coinbase height
+ ::Serialize(s, VARINT(nHeight), nType, nVersion);
+ }
+
+ template<typename Stream>
+ void Unserialize(Stream &s, int nType, int nVersion) {
+ unsigned int nCode = 0;
+ // version
+ ::Unserialize(s, VARINT(this->nVersion), nType, nVersion);
+ // header code
+ ::Unserialize(s, VARINT(nCode), nType, nVersion);
+ fCoinBase = nCode & 1;
+ std::vector<bool> vAvail(2, false);
+ vAvail[0] = nCode & 2;
+ vAvail[1] = nCode & 4;
+ unsigned int nMaskCode = (nCode / 8) + ((nCode & 6) != 0 ? 0 : 1);
+ // spentness bitmask
+ while (nMaskCode > 0) {
+ unsigned char chAvail = 0;
+ ::Unserialize(s, chAvail, nType, nVersion);
+ for (unsigned int p = 0; p < 8; p++) {
+ bool f = (chAvail & (1 << p)) != 0;
+ vAvail.push_back(f);
+ }
+ if (chAvail != 0)
+ nMaskCode--;
+ }
+ // txouts themself
+ vout.assign(vAvail.size(), CTxOut());
+ for (unsigned int i = 0; i < vAvail.size(); i++) {
+ if (vAvail[i])
+ ::Unserialize(s, REF(CTxOutCompressor(vout[i])), nType, nVersion);
+ }
+ // coinbase height
+ ::Unserialize(s, VARINT(nHeight), nType, nVersion);
+ Cleanup();
+ }
+
+ // mark an outpoint spent, and construct undo information
+ bool Spend(const COutPoint &out, CTxInUndo &undo) {
+ if (out.n >= vout.size())
+ return false;
+ if (vout[out.n].IsNull())
+ return false;
+ undo = CTxInUndo(vout[out.n]);
+ vout[out.n].SetNull();
+ Cleanup();
+ if (vout.size() == 0) {
+ undo.nHeight = nHeight;
+ undo.fCoinBase = fCoinBase;
+ undo.nVersion = this->nVersion;
+ }
+ return true;
+ }
+
+ // mark a vout spent
+ bool Spend(int nPos) {
+ CTxInUndo undo;
+ COutPoint out(0, nPos);
+ return Spend(out, undo);
+ }
+
+ // check whether a particular output is still available
+ bool IsAvailable(unsigned int nPos) const {
+ return (nPos < vout.size() && !vout[nPos].IsNull());
+ }
+
+ // check whether the entire CCoins is spent
+ // note that only !IsPruned() CCoins can be serialized
+ bool IsPruned() const {
+ BOOST_FOREACH(const CTxOut &out, vout)
+ if (!out.IsNull())
+ return false;
+ return true;
+ }
+};
+
return !(a == b);
}
int GetDepthInMainChain() const;
-
+
};
{
public:
// header
+ static const int CURRENT_VERSION=6;
int nVersion;
uint256 hashPrevBlock;
uint256 hashMerkleRoot;
void SetNull()
{
- nVersion = 2;
+ nVersion = CBlock::CURRENT_VERSION;
hashPrevBlock = 0;
hashMerkleRoot = 0;
nTime = 0;
uint256 GetHash() const
{
- uint256 thash;
- void * scratchbuff = scrypt_buffer_alloc();
-
- scrypt_hash(CVOIDBEGIN(nVersion), sizeof(block_header), UINTBEGIN(thash), scratchbuff);
-
- scrypt_buffer_free(scratchbuff);
-
- return thash;
+ return scrypt_blockhash(CVOIDBEGIN(nVersion));
}
-
int64 GetBlockTime() const
{
return (int64)nTime;
void UpdateTime(const CBlockIndex* pindexPrev);
// ppcoin: entropy bit for stake modifier if chosen by modifier
- unsigned int GetStakeEntropyBit() const
+ unsigned int GetStakeEntropyBit(unsigned int nTime) const
{
+ // Protocol switch to support p2pool at novacoin block #9689
+ if (nTime >= ENTROPY_SWITCH_TIME || fTestNet)
+ {
+ // Take last bit of block hash as entropy bit
+ unsigned int nEntropyBit = ((GetHash().Get64()) & 1llu);
+ if (fDebug && GetBoolArg("-printstakemodifier"))
+ printf("GetStakeEntropyBit: nTime=%u hashBlock=%s nEntropyBit=%u\n", nTime, GetHash().ToString().c_str(), nEntropyBit);
+ return nEntropyBit;
+ }
+ // Before novacoin block #9689 - old protocol
uint160 hashSig = Hash160(vchBlockSig);
if (fDebug && GetBoolArg("-printstakemodifier"))
printf("GetStakeEntropyBit: hashSig=%s", hashSig.ToString().c_str());
hashSig >>= 159; // take the first bit of the hash
if (fDebug && GetBoolArg("-printstakemodifier"))
- printf(" entropybit=%d\n", hashSig.Get64());
+ printf(" entropybit=%"PRI64d"\n", hashSig.Get64());
return hashSig.Get64();
}
}
- bool WriteToDisk(unsigned int& nFileRet, unsigned int& nBlockPosRet)
+ bool WriteToDisk(CDiskBlockPos &pos)
{
// Open history file to append
- CAutoFile fileout = CAutoFile(AppendBlockFile(nFileRet), SER_DISK, CLIENT_VERSION);
+ pos.MakeUnique(GetDataDir());
+ CAutoFile fileout = CAutoFile(OpenBlockFile(pos, "ab"), SER_DISK, CLIENT_VERSION);
if (!fileout)
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;
-
// Write block
- long fileOutPos = ftell(fileout);
- if (fileOutPos < 0)
- return error("CBlock::WriteToDisk() : ftell failed");
- nBlockPosRet = fileOutPos;
fileout << *this;
// Flush stdio buffers and commit to disk before returning
fflush(fileout);
if (!IsInitialBlockDownload() || (nBestHeight+1) % 500 == 0)
- {
-#ifdef WIN32
- _commit(_fileno(fileout));
-#else
- fsync(fileno(fileout));
-#endif
- }
+ FileCommit(fileout);
return true;
}
- bool ReadFromDisk(unsigned int nFile, unsigned int nBlockPos, bool fReadTransactions=true)
+ bool ReadFromDisk(const CDiskBlockPos &pos, bool fReadTransactions = true)
{
SetNull();
// Open history file to read
- CAutoFile filein = CAutoFile(OpenBlockFile(nFile, nBlockPos, "rb"), SER_DISK, CLIENT_VERSION);
+ CAutoFile filein = CAutoFile(OpenBlockFile(pos, "rb"), SER_DISK, CLIENT_VERSION);
if (!filein)
return error("CBlock::ReadFromDisk() : OpenBlockFile failed");
if (!fReadTransactions)
void print() const
{
- 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(),
+ printf("CBlock(hash=%s, ver=%d, hashPrevBlock=%s, hashMerkleRoot=%s, nTime=%u, nBits=%08x, nNonce=%u, vtx=%"PRIszu", vchBlockSig=%s)\n",
+ GetHash().ToString().c_str(),
nVersion,
- hashPrevBlock.ToString().substr(0,20).c_str(),
- hashMerkleRoot.ToString().substr(0,10).c_str(),
+ hashPrevBlock.ToString().c_str(),
+ hashMerkleRoot.ToString().c_str(),
nTime, nBits, nNonce,
vtx.size(),
HexStr(vchBlockSig.begin(), vchBlockSig.end()).c_str());
bool DisconnectBlock(CTxDB& txdb, CBlockIndex* pindex);
- bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex);
+ bool ConnectBlock(CTxDB& txdb, CBlockIndex* pindex, bool fJustCheck=false);
bool ReadFromDisk(const CBlockIndex* pindex, bool fReadTransactions=true);
bool SetBestChain(CTxDB& txdb, CBlockIndex* pindexNew);
- bool AddToBlockIndex(unsigned int nFile, unsigned int nBlockPos);
- bool CheckBlock() const;
+ bool AddToBlockIndex(const CDiskBlockPos &pos);
+ bool CheckBlock(bool fCheckPOW=true, bool fCheckMerkleRoot=true, bool fCheckSig=true) const;
bool AcceptBlock();
bool GetCoinAge(uint64& nCoinAge) const; // ppcoin: calculate total coin age spent in block
- bool SignBlock(const CKeyStore& keystore);
- bool CheckBlockSignature() const;
+ bool SignBlock(CWallet& keystore);
+ bool CheckBlockSignature(bool fProofOfStake) const;
private:
bool SetBestChainInner(CTxDB& txdb, CBlockIndex *pindexNew);
const uint256* phashBlock;
CBlockIndex* pprev;
CBlockIndex* pnext;
- unsigned int nFile;
- unsigned int nBlockPos;
- CBigNum bnChainTrust; // ppcoin: trust score of block chain
+ uint256 nChainTrust; // ppcoin: trust score of block chain
int nHeight;
+ unsigned int nAlternative;
+
int64 nMint;
int64 nMoneySupply;
- unsigned int nFlags; // ppcoin: block index flags
- enum
+ unsigned int nFlags;
+ enum
{
BLOCK_PROOF_OF_STAKE = (1 << 0), // is proof-of-stake block
BLOCK_STAKE_ENTROPY = (1 << 1), // entropy bit for stake modifier
unsigned int nBits;
unsigned int nNonce;
-
CBlockIndex()
{
phashBlock = NULL;
pprev = NULL;
pnext = NULL;
- nFile = 0;
- nBlockPos = 0;
nHeight = 0;
- bnChainTrust = 0;
+ nChainTrust = 0;
nMint = 0;
nMoneySupply = 0;
nFlags = 0;
hashProofOfStake = 0;
prevoutStake.SetNull();
nStakeTime = 0;
+ nAlternative = 0;
nVersion = 0;
hashMerkleRoot = 0;
nNonce = 0;
}
- CBlockIndex(unsigned int nFileIn, unsigned int nBlockPosIn, CBlock& block)
+ CBlockIndex(CBlock& block)
{
phashBlock = NULL;
pprev = NULL;
pnext = NULL;
- nFile = nFileIn;
- nBlockPos = nBlockPosIn;
nHeight = 0;
- bnChainTrust = 0;
+ nChainTrust = 0;
nMint = 0;
nMoneySupply = 0;
nFlags = 0;
prevoutStake.SetNull();
nStakeTime = 0;
}
+ nAlternative = 0;
nVersion = block.nVersion;
hashMerkleRoot = block.hashMerkleRoot;
nNonce = block.nNonce;
}
+ CDiskBlockPos GetBlockPos() const {
+ return CDiskBlockPos(nHeight, nAlternative);
+ }
+
CBlock GetBlockHeader() const
{
CBlock block;
return (int64)nTime;
}
- CBigNum GetBlockTrust() const
- {
- CBigNum bnTarget;
- bnTarget.SetCompact(nBits);
- if (bnTarget <= 0)
- return 0;
- return (IsProofOfStake()? (CBigNum(1)<<256) / (bnTarget+1) : 1);
- }
+ uint256 GetBlockTrust() const;
bool IsInMainChain() const
{
return true;
}
- bool EraseBlockFromDisk()
- {
- // Open history file
- CAutoFile fileout = CAutoFile(OpenBlockFile(nFile, nBlockPos, "rb+"), SER_DISK, CLIENT_VERSION);
- if (!fileout)
- return false;
-
- // Overwrite with empty null block
- CBlock block;
- block.SetNull();
- fileout << block;
-
- return true;
- }
-
enum { nMedianTimeSpan=11 };
int64 GetMedianTimePast() const
return pindex->GetMedianTimePast();
}
+ /**
+ * Returns true if there are nRequired or more blocks of minVersion or above
+ * in the last nToCheck blocks, starting at pstart and going backwards.
+ */
+ static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart,
+ unsigned int nRequired, unsigned int nToCheck);
+
+
bool IsProofOfWork() const
{
return !(nFlags & BLOCK_PROOF_OF_STAKE);
std::string ToString() const
{
- return strprintf("CBlockIndex(nprev=%08x, pnext=%08x, nFile=%d, nBlockPos=%-6d nHeight=%d, nMint=%s, nMoneySupply=%s, nFlags=(%s)(%d)(%s), nStakeModifier=%016"PRI64x", nStakeModifierChecksum=%08x, hashProofOfStake=%s, prevoutStake=(%s), nStakeTime=%d merkle=%s, hashBlock=%s)",
- pprev, pnext, nFile, nBlockPos, nHeight,
+ return strprintf("CBlockIndex(nprev=%p, pnext=%p nHeight=%d, nMint=%s, nMoneySupply=%s, nFlags=(%s)(%d)(%s), nStakeModifier=%016"PRI64x", nStakeModifierChecksum=%08x, hashProofOfStake=%s, prevoutStake=(%s), nStakeTime=%d merkle=%s, hashBlock=%s)",
+ pprev, pnext, nHeight,
FormatMoney(nMint).c_str(), FormatMoney(nMoneySupply).c_str(),
GeneratedStakeModifier() ? "MOD" : "-", GetStakeEntropyBit(), IsProofOfStake()? "PoS" : "PoW",
nStakeModifier, nStakeModifierChecksum,
hashProofOfStake.ToString().c_str(),
prevoutStake.ToString().c_str(), nStakeTime,
- hashMerkleRoot.ToString().substr(0,10).c_str(),
- GetBlockHash().ToString().substr(0,20).c_str());
+ hashMerkleRoot.ToString().c_str(),
+ GetBlockHash().ToString().c_str());
}
void print() const
/** Used to marshal pointers into hashes for db storage. */
class CDiskBlockIndex : public CBlockIndex
{
+private:
+ uint256 blockHash;
+
public:
uint256 hashPrev;
uint256 hashNext;
{
hashPrev = 0;
hashNext = 0;
+ blockHash = 0;
}
explicit CDiskBlockIndex(CBlockIndex* pindex) : CBlockIndex(*pindex)
READWRITE(nVersion);
READWRITE(hashNext);
- READWRITE(nFile);
- READWRITE(nBlockPos);
READWRITE(nHeight);
+ READWRITE(nAlternative);
READWRITE(nMint);
READWRITE(nMoneySupply);
READWRITE(nFlags);
READWRITE(nTime);
READWRITE(nBits);
READWRITE(nNonce);
+ READWRITE(blockHash);
)
uint256 GetBlockHash() const
{
+ if (fUseFastIndex && (nTime < GetAdjustedTime() - 24 * 60 * 60) && blockHash != 0)
+ return blockHash;
+
CBlock block;
block.nVersion = nVersion;
block.hashPrevBlock = hashPrev;
block.nTime = nTime;
block.nBits = nBits;
block.nNonce = nNonce;
- return block.GetHash();
- }
+ const_cast<CDiskBlockIndex*>(this)->blockHash = block.GetHash();
+
+ return blockHash;
+ }
std::string ToString() const
{
str += CBlockIndex::ToString();
str += strprintf("\n hashBlock=%s, hashPrev=%s, hashNext=%s)",
GetBlockHash().ToString().c_str(),
- hashPrev.ToString().substr(0,20).c_str(),
- hashNext.ToString().substr(0,20).c_str());
+ hashPrev.ToString().c_str(),
+ hashNext.ToString().c_str());
return str;
}
if (vHave.size() > 10)
nStep *= 2;
}
- vHave.push_back(hashGenesisBlock);
+ vHave.push_back((!fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet));
}
int GetDistanceBack()
return hash;
}
}
- return hashGenesisBlock;
+ return (!fTestNet ? hashGenesisBlock : hashGenesisBlockTestNet);
}
int GetHeight()
-
-/** Alerts are for notifying old versions if they become too obsolete and
- * need to upgrade. The message is displayed in the status bar.
- * Alert messages are broadcast as a vector of signed data. Unserializing may
- * not read the entire buffer if the alert is for a newer version, but older
- * versions can still relay the original data.
- */
-class CUnsignedAlert
-{
-public:
- int nVersion;
- int64 nRelayUntil; // when newer nodes stop relaying to newer nodes
- int64 nExpiration;
- int nID;
- int nCancel;
- std::set<int> setCancel;
- int nMinVer; // lowest version inclusive
- int nMaxVer; // highest version inclusive
- std::set<std::string> setSubVer; // empty matches all
- int nPriority;
-
- // Actions
- std::string strComment;
- std::string strStatusBar;
- std::string strReserved;
-
- IMPLEMENT_SERIALIZE
- (
- READWRITE(this->nVersion);
- nVersion = this->nVersion;
- READWRITE(nRelayUntil);
- READWRITE(nExpiration);
- READWRITE(nID);
- READWRITE(nCancel);
- READWRITE(setCancel);
- READWRITE(nMinVer);
- READWRITE(nMaxVer);
- READWRITE(setSubVer);
- READWRITE(nPriority);
-
- READWRITE(strComment);
- READWRITE(strStatusBar);
- READWRITE(strReserved);
- )
-
- void SetNull()
- {
- nVersion = 1;
- nRelayUntil = 0;
- nExpiration = 0;
- nID = 0;
- nCancel = 0;
- setCancel.clear();
- nMinVer = 0;
- nMaxVer = 0;
- setSubVer.clear();
- nPriority = 0;
-
- strComment.clear();
- strStatusBar.clear();
- strReserved.clear();
- }
-
- std::string ToString() const
- {
- std::string strSetCancel;
- BOOST_FOREACH(int n, setCancel)
- strSetCancel += strprintf("%d ", n);
- std::string strSetSubVer;
- BOOST_FOREACH(std::string str, setSubVer)
- strSetSubVer += "\"" + str + "\" ";
- return strprintf(
- "CAlert(\n"
- " nVersion = %d\n"
- " nRelayUntil = %"PRI64d"\n"
- " nExpiration = %"PRI64d"\n"
- " nID = %d\n"
- " nCancel = %d\n"
- " setCancel = %s\n"
- " nMinVer = %d\n"
- " nMaxVer = %d\n"
- " setSubVer = %s\n"
- " nPriority = %d\n"
- " strComment = \"%s\"\n"
- " strStatusBar = \"%s\"\n"
- ")\n",
- nVersion,
- nRelayUntil,
- nExpiration,
- nID,
- nCancel,
- strSetCancel.c_str(),
- nMinVer,
- nMaxVer,
- strSetSubVer.c_str(),
- nPriority,
- strComment.c_str(),
- strStatusBar.c_str());
- }
-
- void print() const
- {
- printf("%s", ToString().c_str());
- }
-};
-
-/** An alert is a combination of a serialized CUnsignedAlert and a signature. */
-class CAlert : public CUnsignedAlert
-{
-public:
- std::vector<unsigned char> vchMsg;
- std::vector<unsigned char> vchSig;
-
- CAlert()
- {
- SetNull();
- }
-
- IMPLEMENT_SERIALIZE
- (
- READWRITE(vchMsg);
- READWRITE(vchSig);
- )
-
- void SetNull()
- {
- CUnsignedAlert::SetNull();
- vchMsg.clear();
- vchSig.clear();
- }
-
- bool IsNull() const
- {
- return (nExpiration == 0);
- }
-
- uint256 GetHash() const
- {
- return SerializeHash(*this);
- }
-
- bool IsInEffect() const
- {
- return (GetAdjustedTime() < nExpiration);
- }
-
- bool Cancels(const CAlert& alert) const
- {
- if (!IsInEffect())
- return false; // this was a no-op before 31403
- return (alert.nID <= nCancel || setCancel.count(alert.nID));
- }
-
- bool AppliesTo(int nVersion, std::string strSubVerIn) const
- {
- // TODO: rework for client-version-embedded-in-strSubVer ?
- return (IsInEffect() &&
- nMinVer <= nVersion && nVersion <= nMaxVer &&
- (setSubVer.empty() || setSubVer.count(strSubVerIn)));
- }
-
- bool AppliesToMe() const
- {
- return AppliesTo(PROTOCOL_VERSION, FormatSubVersion(CLIENT_NAME, CLIENT_VERSION, std::vector<std::string>()));
- }
-
- bool RelayTo(CNode* pnode) const
- {
- if (!IsInEffect())
- return false;
- // returns true if wasn't already contained in the set
- if (pnode->setKnown.insert(GetHash()).second)
- {
- if (AppliesTo(pnode->nVersion, pnode->strSubVer) ||
- AppliesToMe() ||
- GetAdjustedTime() < nRelayUntil)
- {
- pnode->PushMessage("alert", *this);
- return true;
- }
- }
- return false;
- }
-
- bool CheckSignature()
- {
- CKey key;
- if (!key.SetPubKey(ParseHex("043fa441fd4203d03f5df2b75ea14e36f20d39f43e7a61aa7552ab9bcd7ecb0e77a3be4585b13fcdaa22ef6e51f1ff6f2929bec2494385b086fb86610e33193195")))
- return error("CAlert::CheckSignature() : SetPubKey failed");
- if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
- return error("CAlert::CheckSignature() : verify signature failed");
-
- // Now unserialize the data
- CDataStream sMsg(vchMsg, SER_NETWORK, PROTOCOL_VERSION);
- sMsg >> *(CUnsignedAlert*)this;
- return true;
- }
-
- bool ProcessAlert();
-};
-
class CTxMemPool
{
public:
bool accept(CTxDB& txdb, CTransaction &tx,
bool fCheckInputs, bool* pfMissingInputs);
- bool addUnchecked(CTransaction &tx);
+ bool addUnchecked(const uint256& hash, CTransaction &tx);
bool remove(CTransaction &tx);
+ void clear();
+ void queryHashes(std::vector<uint256>& vtxid);
unsigned long size()
{