PPCoin: Rescale coin to 6 fractional digits, allowing μPPC unit in GUI

[novacoin.git] / src / wallet.cpp

diff --git a/src/wallet.cpp b/src/wallet.cpp
index 24a5926..8bd1bae 100644 (file)
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -1,5 +1,6 @@
-// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2011 Satoshi Nakamoto
 // Copyright (c) 2011 The Bitcoin developers
+// Copyright (c) 2011 The PPCoin developers
 // Distributed under the MIT/X11 software license, see the accompanying
 // file license.txt or http://www.opensource.org/licenses/mit-license.php.
 
@@ -42,7 +43,7 @@ bool CWallet::AddCryptedKey(const vector<unsigned char> &vchPubKey, const vector
     return false;
 }
 
-bool CWallet::Unlock(const string& strWalletPassphrase)
+bool CWallet::Unlock(const SecureString& strWalletPassphrase)
 {
     if (!IsLocked())
         return false;
@@ -63,7 +64,7 @@ bool CWallet::Unlock(const string& strWalletPassphrase)
     return false;
 }
 
-bool CWallet::ChangeWalletPassphrase(const string& strOldWalletPassphrase, const string& strNewWalletPassphrase)
+bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, const SecureString& strNewWalletPassphrase)
 {
     bool fWasLocked = IsLocked();
 
@@ -122,7 +123,7 @@ public:
     )
 };
 
-bool CWallet::EncryptWallet(const string& strWalletPassphrase)
+bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase)
 {
     if (IsCrypted())
         return false;
@@ -193,7 +194,6 @@ bool CWallet::EncryptWallet(const string& strWalletPassphrase)
 
         // Need to completely rewrite the wallet file; if we don't, bdb might keep
         // bits of the unencrypted private key in slack space in the database file.
-        setKeyPool.clear();
         CDB::Rewrite(strWalletFile);
     }
 
@@ -215,7 +215,7 @@ void CWallet::WalletUpdateSpent(const CTransaction &tx)
                 CWalletTx& wtx = (*mi).second;
                 if (!wtx.IsSpent(txin.prevout.n) && IsMine(wtx.vout[txin.prevout.n]))
                 {
-                    printf("WalletUpdateSpent found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
+                    printf("WalletUpdateSpent found spent coin %sppc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
                     wtx.MarkSpent(txin.prevout.n);
                     wtx.WriteToDisk();
                     vWalletUpdated.push_back(txin.prevout.hash);
@@ -624,7 +624,7 @@ void CWallet::ReacceptWalletTransactions()
                 }
                 if (fUpdated)
                 {
-                    printf("ReacceptWalletTransactions found spent coin %sbc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
+                    printf("ReacceptWalletTransactions found spent coin %sppc %s\n", FormatMoney(wtx.GetCredit()).c_str(), wtx.GetHash().ToString().c_str());
                     wtx.MarkDirty();
                     wtx.WriteToDisk();
                 }
@@ -758,7 +758,7 @@ int64 CWallet::GetUnconfirmedBalance() const
     return nTotal;
 }
 
-bool CWallet::SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfTheirs, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
+bool CWallet::SelectCoinsMinConf(int64 nTargetValue, unsigned int nSpendTime, int nConfMine, int nConfTheirs, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
 {
     setCoinsRet.clear();
     nValueRet = 0;
@@ -795,6 +795,9 @@ bool CWallet::SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfThe
                 if (pcoin->IsSpent(i) || !IsMine(pcoin->vout[i]))
                     continue;
 
+                if (pcoin->nTime > nSpendTime)
+                    continue;  // ppcoin: timestamp must not exceed spend time
+
                 int64 n = pcoin->vout[i].nValue;
 
                 if (n <= 0)
@@ -903,11 +906,11 @@ bool CWallet::SelectCoinsMinConf(int64 nTargetValue, int nConfMine, int nConfThe
     return true;
 }
 
-bool CWallet::SelectCoins(int64 nTargetValue, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
+bool CWallet::SelectCoins(int64 nTargetValue, unsigned int nSpendTime, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, int64& nValueRet) const
 {
-    return (SelectCoinsMinConf(nTargetValue, 1, 6, setCoinsRet, nValueRet) ||
-            SelectCoinsMinConf(nTargetValue, 1, 1, setCoinsRet, nValueRet) ||
-            SelectCoinsMinConf(nTargetValue, 0, 1, setCoinsRet, nValueRet));
+    return (SelectCoinsMinConf(nTargetValue, nSpendTime, 1, 6, setCoinsRet, nValueRet) ||
+            SelectCoinsMinConf(nTargetValue, nSpendTime, 1, 1, setCoinsRet, nValueRet) ||
+            SelectCoinsMinConf(nTargetValue, nSpendTime, 0, 1, setCoinsRet, nValueRet));
 }
 
 
@@ -949,7 +952,7 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CW
                 // Choose coins to use
                 set<pair<const CWalletTx*,unsigned int> > setCoins;
                 int64 nValueIn = 0;
-                if (!SelectCoins(nTotalValue, setCoins, nValueIn))
+                if (!SelectCoins(nTotalValue, wtxNew.nTime, setCoins, nValueIn))
                     return false;
                 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
                 {
@@ -1012,8 +1015,7 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, int64> >& vecSend, CW
 
                 // Check that enough fee is included
                 int64 nPayFee = nTransactionFee * (1 + (int64)nBytes / 1000);
-                bool fAllowFree = CTransaction::AllowFree(dPriority);
-                int64 nMinFee = wtxNew.GetMinFee(1, fAllowFree);
+                int64 nMinFee = wtxNew.GetMinFee(1, false);
                 if (nFeeRet < max(nPayFee, nMinFee))
                 {
                     nFeeRet = max(nPayFee, nMinFee);