PPCoin: Version number and rename checkpoint related constants

[novacoin.git] / src / wallet.cpp

diff --git a/src/wallet.cpp b/src/wallet.cpp
index 1b30be8..12fb9fd 100644 (file)
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -772,13 +772,29 @@ int64 CWallet::GetStake() const
         for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
         {
             const CWalletTx* pcoin = &(*it).second;
-            if ((pcoin->IsCoinBase() || pcoin->IsCoinStake()) && pcoin->GetBlocksToMaturity() > 0 && pcoin->GetDepthInMainChain() > 0)
+            if (pcoin->IsCoinStake() && pcoin->GetBlocksToMaturity() > 0 && pcoin->GetDepthInMainChain() > 0)
                 nTotal += CWallet::GetCredit(*pcoin);
         }
     }
     return nTotal;
 }
 
+int64 CWallet::GetNewMint() const
+{
+    int64 nTotal = 0;
+    CRITICAL_BLOCK(cs_wallet)
+    {
+        for (map<uint256, CWalletTx>::const_iterator it = mapWallet.begin(); it != mapWallet.end(); ++it)
+        {
+            const CWalletTx* pcoin = &(*it).second;
+            if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0 && pcoin->GetDepthInMainChain() > 0)
+                nTotal += CWallet::GetCredit(*pcoin);
+        }
+    }
+    return nTotal;
+}
+
+
 bool CWallet::SelectCoinsMinConf(int64 nTargetValue, unsigned int nSpendTime, int nConfMine, int nConfTheirs, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
 {
     setCoinsRet.clear();
@@ -1062,7 +1078,7 @@ bool CWallet::CreateTransaction(CScript scriptPubKey, int64 nValue, CWalletTx& w
 }
 
 // ppcoin: create coin stake transaction
-bool CWallet::CreateCoinStake(CScript scriptPubKey, unsigned int nBits, CTransaction& txNew)
+bool CWallet::CreateCoinStake(unsigned int nBits, CTransaction& txNew)
 {
     CBigNum bnTargetPerCoinDay;
     bnTargetPerCoinDay.SetCompact(nBits);
@@ -1081,6 +1097,7 @@ bool CWallet::CreateCoinStake(CScript scriptPubKey, unsigned int nBits, CTransac
         if (nBalance <= nBalanceReserve)
             return false;
         set<pair<const CWalletTx*,unsigned int> > setCoins;
+        vector<const CWalletTx*> vwtxPrev;
         int64 nValueIn = 0;
         if (!SelectCoins(nBalance - nBalanceReserve, txNew.nTime, setCoins, nValueIn))
             return false;
@@ -1098,44 +1115,54 @@ bool CWallet::CreateCoinStake(CScript scriptPubKey, unsigned int nBits, CTransac
             CBlock block;
             if (!block.ReadFromDisk(txindex.pos.nFile, txindex.pos.nBlockPos, false))
                 continue;
-            if (block.GetBlockTime() + AUTO_CHECKPOINT_TRUST_SPAN > txNew.nTime)
-                continue; // only count coins from at least one week ago
+            if (block.GetBlockTime() + STAKE_MIN_AGE > txNew.nTime)
+                continue; // only count coins meeting min age requirement
 
             int64 nValueIn = pcoin.first->vout[pcoin.second].nValue;
             CBigNum bnCoinDay = CBigNum(nValueIn) * (txNew.nTime-pcoin.first->nTime) / COIN / (24 * 60 * 60);
             // Calculate hash
             CDataStream ss(SER_GETHASH, VERSION);
-            ss << nBits << block.nTime << pcoin.first->nTime << txNew.nTime;
+            ss << nBits << block.nTime << (txindex.pos.nTxPos - txindex.pos.nBlockPos) << pcoin.first->nTime << pcoin.second << txNew.nTime;
             if (CBigNum(Hash(ss.begin(), ss.end())) <= bnCoinDay * bnTargetPerCoinDay)
             {
                 txNew.vin.push_back(CTxIn(pcoin.first->GetHash(), pcoin.second));
                 nCredit += pcoin.first->vout[pcoin.second].nValue;
-                // Only spend one tx for now
+                vwtxPrev.push_back(pcoin.first);
+                // Set output scriptPubKey
+                txNew.vout.push_back(CTxOut(0, pcoin.first->vout[pcoin.second].scriptPubKey));
                 break;
             }
         }
         if (nCredit == 0 || nCredit > nBalance - nBalanceReserve)
             return false;
+        BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
+        {
+            if (pcoin.first->vout[pcoin.second].scriptPubKey == txNew.vout[1].scriptPubKey && pcoin.first->GetHash() != txNew.vin[0].prevout.hash)
+            {
+                if (nCredit + pcoin.first->vout[pcoin.second].nValue > nBalance - nBalanceReserve)
+                    break;
+                txNew.vin.push_back(CTxIn(pcoin.first->GetHash(), pcoin.second));
+                nCredit += pcoin.first->vout[pcoin.second].nValue;
+                vwtxPrev.push_back(pcoin.first);
+            }
+        }
         // Calculate coin age reward
         {
             uint64 nCoinAge;
             CTxDB txdb("r");
             if (!txNew.GetCoinAge(txdb, nCoinAge))
-                return false;
+                return error("CreateCoinStake : failed to calculate coin age");
             nCredit += GetProofOfStakeReward(nCoinAge);
         }
-        // Fill vout
-        txNew.vout.push_back(CTxOut(nCredit, scriptPubKey));
-
+        // Set output amount
+        txNew.vout[1].nValue = nCredit;
 
         // Sign
         int nIn = 0;
-        BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
+        BOOST_FOREACH(const CWalletTx* pcoin, vwtxPrev)
         {
-            if (!SignSignature(*this, *coin.first, txNew, nIn++))
-                return false;
-            // Only spend one tx for now
-            break;
+            if (!SignSignature(*this, *pcoin, txNew, nIn++))
+                return error("CreateCoinStake : failed to sign coinstake");
         }
     }
     return true;
@@ -1314,10 +1341,15 @@ void CWallet::PrintWallet(const CBlock& block)
 {
     CRITICAL_BLOCK(cs_wallet)
     {
-        if (mapWallet.count(block.vtx[0].GetHash()))
+        if (block.IsProofOfWork() && mapWallet.count(block.vtx[0].GetHash()))
         {
             CWalletTx& wtx = mapWallet[block.vtx[0].GetHash()];
-            printf("    mine:  %d  %d  %d", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), wtx.GetCredit());
+            printf("    mine:  %d  %d  %s", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), FormatMoney(wtx.GetCredit()).c_str());
+        }
+        if (block.IsProofOfStake() && mapWallet.count(block.vtx[1].GetHash()))
+        {
+            CWalletTx& wtx = mapWallet[block.vtx[1].GetHash()];
+            printf("    stake: %d  %d  %s", wtx.GetDepthInMainChain(), wtx.GetBlocksToMaturity(), FormatMoney(wtx.GetCredit()).c_str());
         }
     }
     printf("\n");