map<uint256, CBlockIndex*> mapBlockIndex;
set<pair<COutPoint, unsigned int> > setStakeSeen;
-uint256 hashGenesisBlock("0x000000007c82d1f0aa2896b01bf533a8cc26a1f44790be4ceb4ecde7bee24add");
+uint256 hashGenesisBlock = hashGenesisBlockOfficial;
static CBigNum bnProofOfWorkLimit(~uint256(0) >> 32);
const int nInitialBlockThreshold = 120; // Regard blocks up until N-threshold as "initial download"
CBlockIndex* pindexGenesisBlock = NULL;
CBlock block;
if (!block.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos, false))
return false; // unable to read block of previous transaction
- if (block.GetBlockTime() + AUTO_CHECKPOINT_TRUST_SPAN > nTime)
- return false; // only count coins from at least one week ago
+ if (block.GetBlockTime() + STAKE_MIN_AGE > nTime)
+ return false; // only count coins meeting min age requirement
int64 nValueIn = txPrev.vout[txin.prevout.n].nValue;
CBigNum bnCoinDay = CBigNum(nValueIn) * (nTime-txPrev.nTime) / COIN / (24 * 60 * 60);
}
// ppcoin: total coin age spent in transaction, in the unit of coin-days.
-// Only those coins last spent at least a week ago count. As those
+// Only those coins meeting minimum age requirement counts. As those
// transactions not in main chain are not currently indexed so we
// might not find out about their coin age. Older transactions are
-// guaranteed to be in main chain by auto checkpoint. This rule is
+// guaranteed to be in main chain by sync-checkpoint. This rule is
// introduced to help nodes establish a consistent view of the coin
// age (trust score) of competing branches.
bool CTransaction::GetCoinAge(CTxDB& txdb, uint64& nCoinAge) const
CBlock block;
if (!block.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos, false))
return false; // unable to read block of previous transaction
- if (block.GetBlockTime() + AUTO_CHECKPOINT_TRUST_SPAN > nTime)
- continue; // only count coins from at least one week ago
+ if (block.GetBlockTime() + STAKE_MIN_AGE > nTime)
+ continue; // only count coins meeting min age requirement
int64 nValueIn = txPrev.vout[txin.prevout.n].nValue;
bnCentSecond += CBigNum(nValueIn) * (nTime-txPrev.nTime) / CENT;
}
}
+ // ppcoin: ask for pending sync-checkpoint if any
+ if (!IsInitialBlockDownload())
+ Checkpoints::AskForPendingSyncCheckpoint(pfrom);
// If don't already have its previous block, shunt it off to holding area until we get it
if (!mapBlockIndex.count(pblock->hashPrevBlock))
{
if (fTestNet)
{
- hashGenesisBlock = uint256("0x00000007199508e34a9ff81e6ec0c477a4cccff2a4767a8eee39c11db367b008");
+ hashGenesisBlock = hashGenesisBlockTestNet;
bnProofOfWorkLimit = CBigNum(~uint256(0) >> 28);
pchMessageStart[0] = 0xfa;
pchMessageStart[1] = 0xbf;
return error("LoadBlockIndex() : genesis block not accepted");
// ppcoin: initialize synchronized checkpoint
- CTxDB txdbc;
- if (!txdbc.WriteSyncCheckpoint(hashGenesisBlock))
+ if (!Checkpoints::WriteSyncCheckpoint(hashGenesisBlock))
return error("LoadBlockIndex() : failed to init sync checkpoint");
- txdbc.Close();
- Checkpoints::hashSyncCheckpoint = hashGenesisBlock;
+ }
+
+ // ppcoin: if checkpoint master key changed must reset sync-checkpoint
+ {
+ CTxDB txdb;
+ string strPubKey = "";
+ if (!txdb.ReadCheckpointPubKey(strPubKey) || strPubKey != CSyncCheckpoint::strMasterPubKey)
+ {
+ // write checkpoint master key to db
+ txdb.TxnBegin();
+ if (!txdb.WriteCheckpointPubKey(CSyncCheckpoint::strMasterPubKey))
+ return error("LoadBlockIndex() : failed to write new checkpoint master key to db");
+ if (!txdb.TxnCommit())
+ return error("LoadBlockIndex() : failed to commit new checkpoint master key to db");
+ if (!Checkpoints::ResetSyncCheckpoint())
+ return error("LoadBlockIndex() : failed to reset sync-checkpoint");
+ }
+ txdb.Close();
}
return true;
printf("version message: version %d, blocks=%d\n", pfrom->nVersion, pfrom->nStartingHeight);
cPeerBlockCounts.input(pfrom->nStartingHeight);
+
+ // ppcoin: ask for pending sync-checkpoint if any
+ if (!IsInitialBlockDownload())
+ Checkpoints::AskForPendingSyncCheckpoint(pfrom);
}
};
-CBlock* CreateNewBlock(CWallet* pwallet)
+CBlock* CreateNewBlock(CWallet* pwallet, bool fProofOfWorkOnly)
{
CReserveKey reservekey(pwallet);
// ppcoin: if coinstake available add coinstake tx
static unsigned int nLastCoinStakeCheckTime = GetAdjustedTime() - nMaxClockDrift + 60; // only initialized at startup
CBlockIndex* pindexPrev = pindexBest;
- while (nLastCoinStakeCheckTime < GetAdjustedTime())
+
+ if (!fProofOfWorkOnly)
{
- pindexPrev = pindexBest; // get best block again to avoid getting stale
- pblock->nBits = GetNextTargetRequired(pindexPrev, true);
- static CCriticalSection cs;
- CTransaction txCoinStake;
- CRITICAL_BLOCK(cs)
- {
- // mining may have been suspended for a while so
- // need to take max to satisfy the timestamp protocol
- nLastCoinStakeCheckTime = max(++nLastCoinStakeCheckTime, (unsigned int) (GetAdjustedTime() - nMaxClockDrift + 60));
- txCoinStake.nTime = nLastCoinStakeCheckTime;
- }
- if (pwallet->CreateCoinStake(pblock->nBits, txCoinStake))
+ while (nLastCoinStakeCheckTime < GetAdjustedTime())
{
- pblock->vtx.push_back(txCoinStake);
- pblock->vtx[0].vout[0].SetEmpty();
- break;
+ pindexPrev = pindexBest; // get best block again to avoid getting stale
+ pblock->nBits = GetNextTargetRequired(pindexPrev, true);
+ static CCriticalSection cs;
+ CTransaction txCoinStake;
+ CRITICAL_BLOCK(cs)
+ {
+ // mining may have been suspended for a while so
+ // need to take max to satisfy the timestamp protocol
+ nLastCoinStakeCheckTime = max(++nLastCoinStakeCheckTime, (unsigned int) (GetAdjustedTime() - nMaxClockDrift + 60));
+ txCoinStake.nTime = nLastCoinStakeCheckTime;
+ }
+ if (pwallet->CreateCoinStake(pblock->nBits, txCoinStake))
+ {
+ pblock->vtx.push_back(txCoinStake);
+ pblock->vtx[0].vout[0].SetEmpty();
+ break;
+ }
}
}
// ppcoin: if proof-of-stake block found then process block
if (pblock->IsProofOfStake())
{
- // should be able to sign block - assert here for now
- assert(pblock->SignBlock(*pwalletMain));
+ if (!pblock->SignBlock(*pwalletMain))
+ {
+ error("BitcoinMiner: Unable to sign new proof-of-stake block");
+ return;
+ }
printf("BitcoinMiner : proof-of-stake block found %s\n", pblock->GetHash().ToString().c_str());
SetThreadPriority(THREAD_PRIORITY_NORMAL);
CheckWork(pblock.get(), *pwalletMain, reservekey);
// Found a solution
pblock->nNonce = ByteReverse(nNonceFound);
assert(hash == pblock->GetHash());
- // should be able to sign block - assert here for now
- assert(pblock->SignBlock(*pwalletMain));
+ if (!pblock->SignBlock(*pwalletMain))
+ {
+ error("BitcoinMiner: Unable to sign new proof-of-work block");
+ return;
+ }
SetThreadPriority(THREAD_PRIORITY_NORMAL);
CheckWork(pblock.get(), *pwalletMain, reservekey);
git://git.novaco.in / novacoin.git / blobdiff