return CreateTransaction(vecSend, wtxNew, reservekey, nFeeRet);
}
-// NovaCoin: get current stake generation power
-uint64 CWallet::GetStakeMintPower(const CKeyStore& keystore, enum StakeWeightMode mode)
+// NovaCoin: get current stake weight
+uint64 CWallet::GetStakeWeight(const CKeyStore& keystore, enum StakeWeightMode mode)
{
LOCK2(cs_main, cs_wallet);
if (mapArgs.count("-reservebalance") && !ParseMoney(mapArgs["-reservebalance"], nReserveBalance))
{
- error("GetStakeMintPower : invalid reserve balance amount");
+ error("GetStakeWeight : invalid reserve balance amount");
return 0;
}
if (!txdb.ReadTxIndex(pcoin.first->GetHash(), txindex))
continue;
+ unsigned int nTime = pcoin.first->nTime;
+
switch(mode)
{
case STAKE_NORMAL:
// Do not count input that is still less than 30 days old
- if (pcoin.first->nTime + nStakeMinAge > GetTime())
+ if (nTime + nStakeMinAge > GetTime())
continue;
break;
case STAKE_MAXWEIGHT:
// Do not count input that is still less than 90 days old
- if (pcoin.first->nTime + nStakeMaxAge > GetTime())
+ if (nTime + nStakeMaxAge > GetTime())
continue;
break;
case STAKE_MINWEIGHT:
// Count only inputs with suitable age (from 30 to 90 days old)
- if (pcoin.first->nTime + nStakeMaxAge < GetTime())
- continue;
- if (pcoin.first->nTime + nStakeMinAge > GetTime())
+ if (nTime + nStakeMaxAge < GetTime())
continue;
- break;
- case STAKE_BELOWMIN:
- // Count only inputs with suitable age (less than 30 days old)
- if (pcoin.first->nTime + nStakeMinAge < GetTime())
+ if (nTime + nStakeMinAge > GetTime())
continue;
break;
}
- CBigNum bnCentSecond = CBigNum(pcoin.first->vout[pcoin.second].nValue) * (GetTime()-pcoin.first->nTime) / CENT;
- CBigNum bnCoinDay = bnCentSecond * CENT / COIN / (24 * 60 * 60);
+ int64 nTimeWeight;
+
+ // Kernel hash weight starts from 0 at the 30-day min age
+ // this change increases active coins participating the hash and helps
+ // to secure the network when proof-of-stake difficulty is low
+ //
+ if(fTestNet || (STAKEWEIGHT_SWITCH_TIME < nTime))
+ {
+ // New rule since 01 Jan 2014: Maximum TimeWeight is 90 days.
+ nTimeWeight = min((int64)GetTime() - nTime - nStakeMinAge, (int64)nStakeMaxAge);
+ }
+ else
+ {
+ // Current rule: Maximum TimeWeight is 60 days.
+ nTimeWeight = min((int64)GetTime() - nTime, (int64)nStakeMaxAge) - nStakeMinAge;
+ }
+ CBigNum bnCoinDayWeight = CBigNum(pcoin.first->vout[pcoin.second].nValue) * nTimeWeight / COIN / (24 * 60 * 60);
- nCoinAge += bnCoinDay.getuint64();
+ nCoinAge += bnCoinDayWeight.getuint64();
}
if (fDebug && GetBoolArg("-printcoinage"))
- printf("StakePower bnCoinDay=%"PRI64d"\n", nCoinAge);
+ printf("StakeWeight bnCoinDay=%"PRI64d"\n", nCoinAge);
return nCoinAge;
}