diff options
Diffstat (limited to 'src/wallet/wallet.cpp')
-rw-r--r-- | src/wallet/wallet.cpp | 495 |
1 files changed, 204 insertions, 291 deletions
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 8bf0dfb96d..a8f818a494 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -16,6 +16,7 @@ #include "keystore.h" #include "validation.h" #include "net.h" +#include "policy/fees.h" #include "policy/policy.h" #include "policy/rbf.h" #include "primitives/block.h" @@ -65,10 +66,10 @@ const uint256 CMerkleTx::ABANDON_HASH(uint256S("00000000000000000000000000000000 struct CompareValueOnly { - bool operator()(const std::pair<CAmount, std::pair<const CWalletTx*, unsigned int> >& t1, - const std::pair<CAmount, std::pair<const CWalletTx*, unsigned int> >& t2) const + bool operator()(const CInputCoin& t1, + const CInputCoin& t2) const { - return t1.first < t2.first; + return t1.txout.nValue < t2.txout.nValue; } }; @@ -161,7 +162,7 @@ void CWallet::DeriveNewChildKey(CKeyMetadata& metadata, CKey& secret, bool inter secret = childKey.key; metadata.hdMasterKeyID = hdChain.masterKeyID; // update the chain model in the database - if (!CWalletDB(strWalletFile).WriteHDChain(hdChain)) + if (!CWalletDB(*dbw).WriteHDChain(hdChain)) throw std::runtime_error(std::string(__func__) + ": Writing HD chain model failed"); } @@ -180,10 +181,8 @@ bool CWallet::AddKeyPubKey(const CKey& secret, const CPubKey &pubkey) if (HaveWatchOnly(script)) RemoveWatchOnly(script); - if (!fFileBacked) - return true; if (!IsCrypted()) { - return CWalletDB(strWalletFile).WriteKey(pubkey, + return CWalletDB(*dbw).WriteKey(pubkey, secret.GetPrivKey(), mapKeyMetadata[pubkey.GetID()]); } @@ -195,8 +194,6 @@ bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, { if (!CCryptoKeyStore::AddCryptedKey(vchPubKey, vchCryptedSecret)) return false; - if (!fFileBacked) - return true; { LOCK(cs_wallet); if (pwalletdbEncryption) @@ -204,7 +201,7 @@ bool CWallet::AddCryptedKey(const CPubKey &vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]); else - return CWalletDB(strWalletFile).WriteCryptedKey(vchPubKey, + return CWalletDB(*dbw).WriteCryptedKey(vchPubKey, vchCryptedSecret, mapKeyMetadata[vchPubKey.GetID()]); } @@ -240,9 +237,7 @@ bool CWallet::AddCScript(const CScript& redeemScript) { if (!CCryptoKeyStore::AddCScript(redeemScript)) return false; - if (!fFileBacked) - return true; - return CWalletDB(strWalletFile).WriteCScript(Hash160(redeemScript), redeemScript); + return CWalletDB(*dbw).WriteCScript(Hash160(redeemScript), redeemScript); } bool CWallet::LoadCScript(const CScript& redeemScript) @@ -268,9 +263,7 @@ bool CWallet::AddWatchOnly(const CScript& dest) const CKeyMetadata& meta = mapKeyMetadata[CScriptID(dest)]; UpdateTimeFirstKey(meta.nCreateTime); NotifyWatchonlyChanged(true); - if (!fFileBacked) - return true; - return CWalletDB(strWalletFile).WriteWatchOnly(dest, meta); + return CWalletDB(*dbw).WriteWatchOnly(dest, meta); } bool CWallet::AddWatchOnly(const CScript& dest, int64_t nCreateTime) @@ -286,9 +279,8 @@ bool CWallet::RemoveWatchOnly(const CScript &dest) return false; if (!HaveWatchOnly()) NotifyWatchonlyChanged(false); - if (fFileBacked) - if (!CWalletDB(strWalletFile).EraseWatchOnly(dest)) - return false; + if (!CWalletDB(*dbw).EraseWatchOnly(dest)) + return false; return true; } @@ -353,7 +345,7 @@ bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, return false; if (!crypter.Encrypt(_vMasterKey, pMasterKey.second.vchCryptedKey)) return false; - CWalletDB(strWalletFile).WriteMasterKey(pMasterKey.first, pMasterKey.second); + CWalletDB(*dbw).WriteMasterKey(pMasterKey.first, pMasterKey.second); if (fWasLocked) Lock(); return true; @@ -366,7 +358,7 @@ bool CWallet::ChangeWalletPassphrase(const SecureString& strOldWalletPassphrase, void CWallet::SetBestChain(const CBlockLocator& loc) { - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); walletdb.WriteBestBlock(loc); } @@ -385,9 +377,8 @@ bool CWallet::SetMinVersion(enum WalletFeature nVersion, CWalletDB* pwalletdbIn, if (nVersion > nWalletMaxVersion) nWalletMaxVersion = nVersion; - if (fFileBacked) { - CWalletDB* pwalletdb = pwalletdbIn ? pwalletdbIn : new CWalletDB(strWalletFile); + CWalletDB* pwalletdb = pwalletdbIn ? pwalletdbIn : new CWalletDB(*dbw); if (nWalletVersion > 40000) pwalletdb->WriteMinVersion(nWalletVersion); if (!pwalletdbIn) @@ -441,7 +432,7 @@ bool CWallet::HasWalletSpend(const uint256& txid) const void CWallet::Flush(bool shutdown) { - bitdb.Flush(shutdown); + dbw->Flush(shutdown); } bool CWallet::Verify() @@ -594,24 +585,19 @@ bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase) { LOCK(cs_wallet); mapMasterKeys[++nMasterKeyMaxID] = kMasterKey; - if (fFileBacked) - { - assert(!pwalletdbEncryption); - pwalletdbEncryption = new CWalletDB(strWalletFile); - if (!pwalletdbEncryption->TxnBegin()) { - delete pwalletdbEncryption; - pwalletdbEncryption = NULL; - return false; - } - pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey); + assert(!pwalletdbEncryption); + pwalletdbEncryption = new CWalletDB(*dbw); + if (!pwalletdbEncryption->TxnBegin()) { + delete pwalletdbEncryption; + pwalletdbEncryption = NULL; + return false; } + pwalletdbEncryption->WriteMasterKey(nMasterKeyMaxID, kMasterKey); if (!EncryptKeys(_vMasterKey)) { - if (fFileBacked) { - pwalletdbEncryption->TxnAbort(); - delete pwalletdbEncryption; - } + pwalletdbEncryption->TxnAbort(); + delete pwalletdbEncryption; // We now probably have half of our keys encrypted in memory, and half not... // die and let the user reload the unencrypted wallet. assert(false); @@ -620,19 +606,16 @@ bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase) // Encryption was introduced in version 0.4.0 SetMinVersion(FEATURE_WALLETCRYPT, pwalletdbEncryption, true); - if (fFileBacked) - { - if (!pwalletdbEncryption->TxnCommit()) { - delete pwalletdbEncryption; - // We now have keys encrypted in memory, but not on disk... - // die to avoid confusion and let the user reload the unencrypted wallet. - assert(false); - } - + if (!pwalletdbEncryption->TxnCommit()) { delete pwalletdbEncryption; - pwalletdbEncryption = NULL; + // We now have keys encrypted in memory, but not on disk... + // die to avoid confusion and let the user reload the unencrypted wallet. + assert(false); } + delete pwalletdbEncryption; + pwalletdbEncryption = NULL; + Lock(); Unlock(strWalletPassphrase); @@ -651,7 +634,7 @@ bool CWallet::EncryptWallet(const SecureString& 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. - CDB::Rewrite(strWalletFile); + dbw->Rewrite(); } NotifyStatusChanged(this); @@ -662,7 +645,7 @@ bool CWallet::EncryptWallet(const SecureString& strWalletPassphrase) DBErrors CWallet::ReorderTransactions() { LOCK(cs_wallet); - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); // Old wallets didn't have any defined order for transactions // Probably a bad idea to change the output of this @@ -743,14 +726,14 @@ int64_t CWallet::IncOrderPosNext(CWalletDB *pwalletdb) if (pwalletdb) { pwalletdb->WriteOrderPosNext(nOrderPosNext); } else { - CWalletDB(strWalletFile).WriteOrderPosNext(nOrderPosNext); + CWalletDB(*dbw).WriteOrderPosNext(nOrderPosNext); } return nRet; } bool CWallet::AccountMove(std::string strFrom, std::string strTo, CAmount nAmount, std::string strComment) { - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); if (!walletdb.TxnBegin()) return false; @@ -784,7 +767,7 @@ bool CWallet::AccountMove(std::string strFrom, std::string strTo, CAmount nAmoun bool CWallet::GetAccountPubkey(CPubKey &pubKey, std::string strAccount, bool bForceNew) { - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); CAccount account; walletdb.ReadAccount(strAccount, account); @@ -845,7 +828,7 @@ bool CWallet::MarkReplaced(const uint256& originalHash, const uint256& newHash) wtx.mapValue["replaced_by_txid"] = newHash.ToString(); - CWalletDB walletdb(strWalletFile, "r+"); + CWalletDB walletdb(*dbw, "r+"); bool success = true; if (!walletdb.WriteTx(wtx)) { @@ -862,7 +845,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFlushOnClose) { LOCK(cs_wallet); - CWalletDB walletdb(strWalletFile, "r+", fFlushOnClose); + CWalletDB walletdb(*dbw, "r+", fFlushOnClose); uint256 hash = wtxIn.GetHash(); @@ -957,9 +940,9 @@ bool CWallet::LoadToWallet(const CWalletTx& wtxIn) /** * Add a transaction to the wallet, or update it. pIndex and posInBlock should * be set when the transaction was known to be included in a block. When - * posInBlock = SYNC_TRANSACTION_NOT_IN_BLOCK (-1) , then wallet state is not - * updated in AddToWallet, but notifications happen and cached balances are - * marked dirty. + * pIndex == NULL, then wallet state is not updated in AddToWallet, but + * notifications happen and cached balances are marked dirty. + * * If fUpdate is true, existing transactions will be updated. * TODO: One exception to this is that the abandoned state is cleared under the * assumption that any further notification of a transaction that was considered @@ -973,7 +956,7 @@ bool CWallet::AddToWalletIfInvolvingMe(const CTransactionRef& ptx, const CBlockI { AssertLockHeld(cs_wallet); - if (posInBlock != -1) { + if (pIndex != NULL) { BOOST_FOREACH(const CTxIn& txin, tx.vin) { std::pair<TxSpends::const_iterator, TxSpends::const_iterator> range = mapTxSpends.equal_range(txin.prevout); while (range.first != range.second) { @@ -993,7 +976,7 @@ bool CWallet::AddToWalletIfInvolvingMe(const CTransactionRef& ptx, const CBlockI CWalletTx wtx(this, ptx); // Get merkle branch if transaction was found in a block - if (posInBlock != -1) + if (pIndex != NULL) wtx.SetMerkleBranch(pIndex, posInBlock); return AddToWallet(wtx, false); @@ -1006,7 +989,7 @@ bool CWallet::AbandonTransaction(const uint256& hashTx) { LOCK2(cs_main, cs_wallet); - CWalletDB walletdb(strWalletFile, "r+"); + CWalletDB walletdb(*dbw, "r+"); std::set<uint256> todo; std::set<uint256> done; @@ -1078,7 +1061,7 @@ void CWallet::MarkConflicted(const uint256& hashBlock, const uint256& hashTx) return; // Do not flush the wallet here for performance reasons - CWalletDB walletdb(strWalletFile, "r+", false); + CWalletDB walletdb(*dbw, "r+", false); std::set<uint256> todo; std::set<uint256> done; @@ -1118,10 +1101,10 @@ void CWallet::MarkConflicted(const uint256& hashBlock, const uint256& hashTx) } } -void CWallet::SyncTransaction(const CTransactionRef& ptx, const CBlockIndex *pindexBlockConnected, int posInBlock) { +void CWallet::SyncTransaction(const CTransactionRef& ptx, const CBlockIndex *pindex, int posInBlock) { const CTransaction& tx = *ptx; - if (!AddToWalletIfInvolvingMe(ptx, pindexBlockConnected, posInBlock, true)) + if (!AddToWalletIfInvolvingMe(ptx, pindex, posInBlock, true)) return; // Not one of ours // If a transaction changes 'conflicted' state, that changes the balance @@ -1136,7 +1119,7 @@ void CWallet::SyncTransaction(const CTransactionRef& ptx, const CBlockIndex *pin void CWallet::TransactionAddedToMempool(const CTransactionRef& ptx) { LOCK2(cs_main, cs_wallet); - SyncTransaction(ptx, NULL, -1); + SyncTransaction(ptx); } void CWallet::BlockConnected(const std::shared_ptr<const CBlock>& pblock, const CBlockIndex *pindex, const std::vector<CTransactionRef>& vtxConflicted) { @@ -1150,7 +1133,7 @@ void CWallet::BlockConnected(const std::shared_ptr<const CBlock>& pblock, const // the notification that the conflicted transaction was evicted. for (const CTransactionRef& ptx : vtxConflicted) { - SyncTransaction(ptx, NULL, -1); + SyncTransaction(ptx); } for (size_t i = 0; i < pblock->vtx.size(); i++) { SyncTransaction(pblock->vtx[i], pindex, i); @@ -1161,7 +1144,7 @@ void CWallet::BlockDisconnected(const std::shared_ptr<const CBlock>& pblock) { LOCK2(cs_main, cs_wallet); for (const CTransactionRef& ptx : pblock->vtx) { - SyncTransaction(ptx, NULL, -1); + SyncTransaction(ptx); } } @@ -1361,7 +1344,7 @@ bool CWallet::SetHDMasterKey(const CPubKey& pubkey, CHDChain *possibleOldChain) bool CWallet::SetHDChain(const CHDChain& chain, bool memonly) { LOCK(cs_wallet); - if (!memonly && !CWalletDB(strWalletFile).WriteHDChain(chain)) + if (!memonly && !CWalletDB(*dbw).WriteHDChain(chain)) throw std::runtime_error(std::string(__func__) + ": writing chain failed"); hdChain = chain; @@ -1474,59 +1457,27 @@ void CWalletTx::GetAmounts(std::list<COutputEntry>& listReceived, } -void CWalletTx::GetAccountAmounts(const std::string& strAccount, CAmount& nReceived, - CAmount& nSent, CAmount& nFee, const isminefilter& filter) const -{ - nReceived = nSent = nFee = 0; - - CAmount allFee; - std::string strSentAccount; - std::list<COutputEntry> listReceived; - std::list<COutputEntry> listSent; - GetAmounts(listReceived, listSent, allFee, strSentAccount, filter); - - if (strAccount == strSentAccount) - { - BOOST_FOREACH(const COutputEntry& s, listSent) - nSent += s.amount; - nFee = allFee; - } - { - LOCK(pwallet->cs_wallet); - BOOST_FOREACH(const COutputEntry& r, listReceived) - { - if (pwallet->mapAddressBook.count(r.destination)) - { - std::map<CTxDestination, CAddressBookData>::const_iterator mi = pwallet->mapAddressBook.find(r.destination); - if (mi != pwallet->mapAddressBook.end() && (*mi).second.name == strAccount) - nReceived += r.amount; - } - else if (strAccount.empty()) - { - nReceived += r.amount; - } - } - } -} - /** * Scan the block chain (starting in pindexStart) for transactions * from or to us. If fUpdate is true, found transactions that already * exist in the wallet will be updated. * * Returns pointer to the first block in the last contiguous range that was - * successfully scanned. - * + * successfully scanned or elided (elided if pIndexStart points at a block + * before CWallet::nTimeFirstKey). Returns null if there is no such range, or + * the range doesn't include chainActive.Tip(). */ CBlockIndex* CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool fUpdate) { - CBlockIndex* ret = nullptr; int64_t nNow = GetTime(); const CChainParams& chainParams = Params(); CBlockIndex* pindex = pindexStart; + CBlockIndex* ret = pindexStart; { LOCK2(cs_main, cs_wallet); + fAbortRescan = false; + fScanningWallet = true; // no need to read and scan block, if block was created before // our wallet birthday (as adjusted for block time variability) @@ -1536,10 +1487,14 @@ CBlockIndex* CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool f ShowProgress(_("Rescanning..."), 0); // show rescan progress in GUI as dialog or on splashscreen, if -rescan on startup double dProgressStart = GuessVerificationProgress(chainParams.TxData(), pindex); double dProgressTip = GuessVerificationProgress(chainParams.TxData(), chainActive.Tip()); - while (pindex) + while (pindex && !fAbortRescan) { if (pindex->nHeight % 100 == 0 && dProgressTip - dProgressStart > 0.0) ShowProgress(_("Rescanning..."), std::max(1, std::min(99, (int)((GuessVerificationProgress(chainParams.TxData(), pindex) - dProgressStart) / (dProgressTip - dProgressStart) * 100)))); + if (GetTime() >= nNow + 60) { + nNow = GetTime(); + LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex->nHeight, GuessVerificationProgress(chainParams.TxData(), pindex)); + } CBlock block; if (ReadBlockFromDisk(block, pindex, Params().GetConsensus())) { @@ -1553,12 +1508,13 @@ CBlockIndex* CWallet::ScanForWalletTransactions(CBlockIndex* pindexStart, bool f ret = nullptr; } pindex = chainActive.Next(pindex); - if (GetTime() >= nNow + 60) { - nNow = GetTime(); - LogPrintf("Still rescanning. At block %d. Progress=%f\n", pindex->nHeight, GuessVerificationProgress(chainParams.TxData(), pindex)); - } + } + if (pindex && fAbortRescan) { + LogPrintf("Rescan aborted at block %d. Progress=%f\n", pindex->nHeight, GuessVerificationProgress(chainParams.TxData(), pindex)); } ShowProgress(_("Rescanning..."), 100); // hide progress dialog in GUI + + fScanningWallet = false; } return ret; } @@ -1984,6 +1940,49 @@ CAmount CWallet::GetImmatureWatchOnlyBalance() const return nTotal; } +// Calculate total balance in a different way from GetBalance. The biggest +// difference is that GetBalance sums up all unspent TxOuts paying to the +// wallet, while this sums up both spent and unspent TxOuts paying to the +// wallet, and then subtracts the values of TxIns spending from the wallet. This +// also has fewer restrictions on which unconfirmed transactions are considered +// trusted. +CAmount CWallet::GetLegacyBalance(const isminefilter& filter, int minDepth, const std::string* account) const +{ + LOCK2(cs_main, cs_wallet); + + CAmount balance = 0; + for (const auto& entry : mapWallet) { + const CWalletTx& wtx = entry.second; + const int depth = wtx.GetDepthInMainChain(); + if (depth < 0 || !CheckFinalTx(*wtx.tx) || wtx.GetBlocksToMaturity() > 0) { + continue; + } + + // Loop through tx outputs and add incoming payments. For outgoing txs, + // treat change outputs specially, as part of the amount debited. + CAmount debit = wtx.GetDebit(filter); + const bool outgoing = debit > 0; + for (const CTxOut& out : wtx.tx->vout) { + if (outgoing && IsChange(out)) { + debit -= out.nValue; + } else if (IsMine(out) & filter && depth >= minDepth && (!account || *account == GetAccountName(out.scriptPubKey))) { + balance += out.nValue; + } + } + + // For outgoing txs, subtract amount debited. + if (outgoing && (!account || *account == wtx.strFromAccount)) { + balance -= debit; + } + } + + if (account) { + balance += CWalletDB(*dbw).GetAccountCreditDebit(*account); + } + + return balance; +} + void CWallet::AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe, const CCoinControl *coinControl, bool fIncludeZeroValue) const { vCoins.clear(); @@ -2061,7 +2060,7 @@ void CWallet::AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe, const } } -static void ApproximateBestSubset(const std::vector<std::pair<CAmount, std::pair<const CWalletTx*,unsigned int> > >& vValue, const CAmount& nTotalLower, const CAmount& nTargetValue, +static void ApproximateBestSubset(const std::vector<CInputCoin>& vValue, const CAmount& nTotalLower, const CAmount& nTargetValue, std::vector<char>& vfBest, CAmount& nBest, int iterations = 1000) { std::vector<char> vfIncluded; @@ -2086,9 +2085,9 @@ static void ApproximateBestSubset(const std::vector<std::pair<CAmount, std::pair //that the rng is fast. We do not use a constant random sequence, //because there may be some privacy improvement by making //the selection random. - if (nPass == 0 ? insecure_rand.rand32()&1 : !vfIncluded[i]) + if (nPass == 0 ? insecure_rand.randbool() : !vfIncluded[i]) { - nTotal += vValue[i].first; + nTotal += vValue[i].txout.nValue; vfIncluded[i] = true; if (nTotal >= nTargetValue) { @@ -2098,7 +2097,7 @@ static void ApproximateBestSubset(const std::vector<std::pair<CAmount, std::pair nBest = nTotal; vfBest = vfIncluded; } - nTotal -= vValue[i].first; + nTotal -= vValue[i].txout.nValue; vfIncluded[i] = false; } } @@ -2108,16 +2107,14 @@ static void ApproximateBestSubset(const std::vector<std::pair<CAmount, std::pair } bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMine, const int nConfTheirs, const uint64_t nMaxAncestors, std::vector<COutput> vCoins, - std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet) const + std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet) const { setCoinsRet.clear(); nValueRet = 0; // List of values less than target - std::pair<CAmount, std::pair<const CWalletTx*,unsigned int> > coinLowestLarger; - coinLowestLarger.first = std::numeric_limits<CAmount>::max(); - coinLowestLarger.second.first = NULL; - std::vector<std::pair<CAmount, std::pair<const CWalletTx*,unsigned int> > > vValue; + boost::optional<CInputCoin> coinLowestLarger; + std::vector<CInputCoin> vValue; CAmount nTotalLower = 0; random_shuffle(vCoins.begin(), vCoins.end(), GetRandInt); @@ -2136,22 +2133,21 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMin continue; int i = output.i; - CAmount n = pcoin->tx->vout[i].nValue; - std::pair<CAmount,std::pair<const CWalletTx*,unsigned int> > coin = std::make_pair(n,std::make_pair(pcoin, i)); + CInputCoin coin = CInputCoin(pcoin, i); - if (n == nTargetValue) + if (coin.txout.nValue == nTargetValue) { - setCoinsRet.insert(coin.second); - nValueRet += coin.first; + setCoinsRet.insert(coin); + nValueRet += coin.txout.nValue; return true; } - else if (n < nTargetValue + MIN_CHANGE) + else if (coin.txout.nValue < nTargetValue + MIN_CHANGE) { vValue.push_back(coin); - nTotalLower += n; + nTotalLower += coin.txout.nValue; } - else if (n < coinLowestLarger.first) + else if (!coinLowestLarger || coin.txout.nValue < coinLowestLarger->txout.nValue) { coinLowestLarger = coin; } @@ -2161,18 +2157,18 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMin { for (unsigned int i = 0; i < vValue.size(); ++i) { - setCoinsRet.insert(vValue[i].second); - nValueRet += vValue[i].first; + setCoinsRet.insert(vValue[i]); + nValueRet += vValue[i].txout.nValue; } return true; } if (nTotalLower < nTargetValue) { - if (coinLowestLarger.second.first == NULL) + if (!coinLowestLarger) return false; - setCoinsRet.insert(coinLowestLarger.second); - nValueRet += coinLowestLarger.first; + setCoinsRet.insert(coinLowestLarger.get()); + nValueRet += coinLowestLarger->txout.nValue; return true; } @@ -2188,25 +2184,25 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMin // If we have a bigger coin and (either the stochastic approximation didn't find a good solution, // or the next bigger coin is closer), return the bigger coin - if (coinLowestLarger.second.first && - ((nBest != nTargetValue && nBest < nTargetValue + MIN_CHANGE) || coinLowestLarger.first <= nBest)) + if (coinLowestLarger && + ((nBest != nTargetValue && nBest < nTargetValue + MIN_CHANGE) || coinLowestLarger->txout.nValue <= nBest)) { - setCoinsRet.insert(coinLowestLarger.second); - nValueRet += coinLowestLarger.first; + setCoinsRet.insert(coinLowestLarger.get()); + nValueRet += coinLowestLarger->txout.nValue; } else { for (unsigned int i = 0; i < vValue.size(); i++) if (vfBest[i]) { - setCoinsRet.insert(vValue[i].second); - nValueRet += vValue[i].first; + setCoinsRet.insert(vValue[i]); + nValueRet += vValue[i].txout.nValue; } if (LogAcceptCategory(BCLog::SELECTCOINS)) { LogPrint(BCLog::SELECTCOINS, "SelectCoins() best subset: "); for (unsigned int i = 0; i < vValue.size(); i++) { if (vfBest[i]) { - LogPrint(BCLog::SELECTCOINS, "%s ", FormatMoney(vValue[i].first)); + LogPrint(BCLog::SELECTCOINS, "%s ", FormatMoney(vValue[i].txout.nValue)); } } LogPrint(BCLog::SELECTCOINS, "total %s\n", FormatMoney(nBest)); @@ -2216,7 +2212,7 @@ bool CWallet::SelectCoinsMinConf(const CAmount& nTargetValue, const int nConfMin return true; } -bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAmount& nTargetValue, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet, const CCoinControl* coinControl) const +bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAmount& nTargetValue, std::set<CInputCoin>& setCoinsRet, CAmount& nValueRet, const CCoinControl* coinControl) const { std::vector<COutput> vCoins(vAvailableCoins); @@ -2228,13 +2224,13 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm if (!out.fSpendable) continue; nValueRet += out.tx->tx->vout[out.i].nValue; - setCoinsRet.insert(std::make_pair(out.tx, out.i)); + setCoinsRet.insert(CInputCoin(out.tx, out.i)); } return (nValueRet >= nTargetValue); } // calculate value from preset inputs and store them - std::set<std::pair<const CWalletTx*, uint32_t> > setPresetCoins; + std::set<CInputCoin> setPresetCoins; CAmount nValueFromPresetInputs = 0; std::vector<COutPoint> vPresetInputs; @@ -2250,7 +2246,7 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm if (pcoin->tx->vout.size() <= outpoint.n) return false; nValueFromPresetInputs += pcoin->tx->vout[outpoint.n].nValue; - setPresetCoins.insert(std::make_pair(pcoin, outpoint.n)); + setPresetCoins.insert(CInputCoin(pcoin, outpoint.n)); } else return false; // TODO: Allow non-wallet inputs } @@ -2258,7 +2254,7 @@ bool CWallet::SelectCoins(const std::vector<COutput>& vAvailableCoins, const CAm // remove preset inputs from vCoins for (std::vector<COutput>::iterator it = vCoins.begin(); it != vCoins.end() && coinControl && coinControl->HasSelected();) { - if (setPresetCoins.count(std::make_pair(it->tx, it->i))) + if (setPresetCoins.count(CInputCoin(it->tx, it->i))) it = vCoins.erase(it); else ++it; @@ -2424,7 +2420,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT assert(txNew.nLockTime < LOCKTIME_THRESHOLD); { - std::set<std::pair<const CWalletTx*,unsigned int> > setCoins; + std::set<CInputCoin> setCoins; LOCK2(cs_main, cs_wallet); { std::vector<COutput> vAvailableCoins; @@ -2567,9 +2563,10 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT std::vector<CTxOut>::iterator position = txNew.vout.begin()+nChangePosInOut; txNew.vout.insert(position, newTxOut); } - } - else + } else { reservekey.ReturnKey(); + nChangePosInOut = -1; + } // Fill vin // @@ -2583,7 +2580,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT // behavior." bool rbf = coinControl ? coinControl->signalRbf : fWalletRbf; for (const auto& coin : setCoins) - txNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second,CScript(), + txNew.vin.push_back(CTxIn(coin.outpoint,CScript(), std::numeric_limits<unsigned int>::max() - (rbf ? 2 : 1))); // Fill in dummy signatures for fee calculation. @@ -2607,7 +2604,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT if (coinControl && coinControl->nConfirmTarget > 0) currentConfirmationTarget = coinControl->nConfirmTarget; - CAmount nFeeNeeded = GetMinimumFee(nBytes, currentConfirmationTarget, mempool); + CAmount nFeeNeeded = GetMinimumFee(nBytes, currentConfirmationTarget, ::mempool, ::feeEstimator); if (coinControl && nFeeNeeded > 0 && coinControl->nMinimumTotalFee > nFeeNeeded) { nFeeNeeded = coinControl->nMinimumTotalFee; } @@ -2666,10 +2663,10 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT int nIn = 0; for (const auto& coin : setCoins) { - const CScript& scriptPubKey = coin.first->tx->vout[coin.second].scriptPubKey; + const CScript& scriptPubKey = coin.txout.scriptPubKey; SignatureData sigdata; - if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst, nIn, coin.first->tx->vout[coin.second].nValue, SIGHASH_ALL), scriptPubKey, sigdata)) + if (!ProduceSignature(TransactionSignatureCreator(this, &txNewConst, nIn, coin.txout.nValue, SIGHASH_ALL), scriptPubKey, sigdata)) { strFailReason = _("Signing transaction failed"); return false; @@ -2753,13 +2750,13 @@ bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey, CCon } void CWallet::ListAccountCreditDebit(const std::string& strAccount, std::list<CAccountingEntry>& entries) { - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); return walletdb.ListAccountCreditDebit(strAccount, entries); } bool CWallet::AddAccountingEntry(const CAccountingEntry& acentry) { - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); return AddAccountingEntry(acentry, &walletdb); } @@ -2781,19 +2778,14 @@ CAmount CWallet::GetRequiredFee(unsigned int nTxBytes) return std::max(minTxFee.GetFee(nTxBytes), ::minRelayTxFee.GetFee(nTxBytes)); } -CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarget, const CTxMemPool& pool) +CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarget, const CTxMemPool& pool, const CBlockPolicyEstimator& estimator, bool ignoreUserSetFee) { // payTxFee is the user-set global for desired feerate - return GetMinimumFee(nTxBytes, nConfirmTarget, pool, payTxFee.GetFee(nTxBytes)); -} - -CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarget, const CTxMemPool& pool, CAmount targetFee) -{ - CAmount nFeeNeeded = targetFee; + CAmount nFeeNeeded = payTxFee.GetFee(nTxBytes); // User didn't set: use -txconfirmtarget to estimate... - if (nFeeNeeded == 0) { + if (nFeeNeeded == 0 || ignoreUserSetFee) { int estimateFoundTarget = nConfirmTarget; - nFeeNeeded = pool.estimateSmartFee(nConfirmTarget, &estimateFoundTarget).GetFee(nTxBytes); + nFeeNeeded = estimator.estimateSmartFee(nConfirmTarget, &estimateFoundTarget, pool).GetFee(nTxBytes); // ... unless we don't have enough mempool data for estimatefee, then use fallbackFee if (nFeeNeeded == 0) nFeeNeeded = fallbackFee.GetFee(nTxBytes); @@ -2811,13 +2803,11 @@ CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarge DBErrors CWallet::LoadWallet(bool& fFirstRunRet) { - if (!fFileBacked) - return DB_LOAD_OK; fFirstRunRet = false; - DBErrors nLoadWalletRet = CWalletDB(strWalletFile,"cr+").LoadWallet(this); + DBErrors nLoadWalletRet = CWalletDB(*dbw,"cr+").LoadWallet(this); if (nLoadWalletRet == DB_NEED_REWRITE) { - if (CDB::Rewrite(strWalletFile, "\x04pool")) + if (dbw->Rewrite("\x04pool")) { LOCK(cs_wallet); setKeyPool.clear(); @@ -2838,17 +2828,15 @@ DBErrors CWallet::LoadWallet(bool& fFirstRunRet) DBErrors CWallet::ZapSelectTx(std::vector<uint256>& vHashIn, std::vector<uint256>& vHashOut) { - if (!fFileBacked) - return DB_LOAD_OK; AssertLockHeld(cs_wallet); // mapWallet vchDefaultKey = CPubKey(); - DBErrors nZapSelectTxRet = CWalletDB(strWalletFile,"cr+").ZapSelectTx(vHashIn, vHashOut); + DBErrors nZapSelectTxRet = CWalletDB(*dbw,"cr+").ZapSelectTx(vHashIn, vHashOut); for (uint256 hash : vHashOut) mapWallet.erase(hash); if (nZapSelectTxRet == DB_NEED_REWRITE) { - if (CDB::Rewrite(strWalletFile, "\x04pool")) + if (dbw->Rewrite("\x04pool")) { setKeyPool.clear(); // Note: can't top-up keypool here, because wallet is locked. @@ -2868,13 +2856,11 @@ DBErrors CWallet::ZapSelectTx(std::vector<uint256>& vHashIn, std::vector<uint256 DBErrors CWallet::ZapWalletTx(std::vector<CWalletTx>& vWtx) { - if (!fFileBacked) - return DB_LOAD_OK; vchDefaultKey = CPubKey(); - DBErrors nZapWalletTxRet = CWalletDB(strWalletFile,"cr+").ZapWalletTx(vWtx); + DBErrors nZapWalletTxRet = CWalletDB(*dbw,"cr+").ZapWalletTx(vWtx); if (nZapWalletTxRet == DB_NEED_REWRITE) { - if (CDB::Rewrite(strWalletFile, "\x04pool")) + if (dbw->Rewrite("\x04pool")) { LOCK(cs_wallet); setKeyPool.clear(); @@ -2904,11 +2890,9 @@ bool CWallet::SetAddressBook(const CTxDestination& address, const std::string& s } NotifyAddressBookChanged(this, address, strName, ::IsMine(*this, address) != ISMINE_NO, strPurpose, (fUpdated ? CT_UPDATED : CT_NEW) ); - if (!fFileBacked) + if (!strPurpose.empty() && !CWalletDB(*dbw).WritePurpose(CBitcoinAddress(address).ToString(), strPurpose)) return false; - if (!strPurpose.empty() && !CWalletDB(strWalletFile).WritePurpose(CBitcoinAddress(address).ToString(), strPurpose)) - return false; - return CWalletDB(strWalletFile).WriteName(CBitcoinAddress(address).ToString(), strName); + return CWalletDB(*dbw).WriteName(CBitcoinAddress(address).ToString(), strName); } bool CWallet::DelAddressBook(const CTxDestination& address) @@ -2916,33 +2900,40 @@ bool CWallet::DelAddressBook(const CTxDestination& address) { LOCK(cs_wallet); // mapAddressBook - if(fFileBacked) + // Delete destdata tuples associated with address + std::string strAddress = CBitcoinAddress(address).ToString(); + BOOST_FOREACH(const PAIRTYPE(std::string, std::string) &item, mapAddressBook[address].destdata) { - // Delete destdata tuples associated with address - std::string strAddress = CBitcoinAddress(address).ToString(); - BOOST_FOREACH(const PAIRTYPE(std::string, std::string) &item, mapAddressBook[address].destdata) - { - CWalletDB(strWalletFile).EraseDestData(strAddress, item.first); - } + CWalletDB(*dbw).EraseDestData(strAddress, item.first); } mapAddressBook.erase(address); } NotifyAddressBookChanged(this, address, "", ::IsMine(*this, address) != ISMINE_NO, "", CT_DELETED); - if (!fFileBacked) - return false; - CWalletDB(strWalletFile).ErasePurpose(CBitcoinAddress(address).ToString()); - return CWalletDB(strWalletFile).EraseName(CBitcoinAddress(address).ToString()); + CWalletDB(*dbw).ErasePurpose(CBitcoinAddress(address).ToString()); + return CWalletDB(*dbw).EraseName(CBitcoinAddress(address).ToString()); } -bool CWallet::SetDefaultKey(const CPubKey &vchPubKey) +const std::string& CWallet::GetAccountName(const CScript& scriptPubKey) const { - if (fFileBacked) - { - if (!CWalletDB(strWalletFile).WriteDefaultKey(vchPubKey)) - return false; + CTxDestination address; + if (ExtractDestination(scriptPubKey, address) && !scriptPubKey.IsUnspendable()) { + auto mi = mapAddressBook.find(address); + if (mi != mapAddressBook.end()) { + return mi->second.name; + } } + // A scriptPubKey that doesn't have an entry in the address book is + // associated with the default account (""). + const static std::string DEFAULT_ACCOUNT_NAME; + return DEFAULT_ACCOUNT_NAME; +} + +bool CWallet::SetDefaultKey(const CPubKey &vchPubKey) +{ + if (!CWalletDB(*dbw).WriteDefaultKey(vchPubKey)) + return false; vchDefaultKey = vchPubKey; return true; } @@ -2955,7 +2946,7 @@ bool CWallet::NewKeyPool() { { LOCK(cs_wallet); - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); BOOST_FOREACH(int64_t nIndex, setKeyPool) walletdb.ErasePool(nIndex); setKeyPool.clear(); @@ -2976,7 +2967,7 @@ size_t CWallet::KeypoolCountExternalKeys() if (!IsHDEnabled() || !CanSupportFeature(FEATURE_HD_SPLIT)) return setKeyPool.size(); - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); // count amount of external keys size_t amountE = 0; @@ -3019,7 +3010,7 @@ bool CWallet::TopUpKeyPool(unsigned int kpSize) missingInternal = 0; } bool internal = false; - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); for (int64_t i = missingInternal + missingExternal; i--;) { int64_t nEnd = 1; @@ -3050,7 +3041,7 @@ void CWallet::ReserveKeyFromKeyPool(int64_t& nIndex, CKeyPool& keypool, bool int if(setKeyPool.empty()) return; - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); // try to find a key that matches the internal/external filter for(const int64_t& id : setKeyPool) @@ -3076,11 +3067,8 @@ void CWallet::ReserveKeyFromKeyPool(int64_t& nIndex, CKeyPool& keypool, bool int void CWallet::KeepKey(int64_t nIndex) { // Remove from key pool - if (fFileBacked) - { - CWalletDB walletdb(strWalletFile); - walletdb.ErasePool(nIndex); - } + CWalletDB walletdb(*dbw); + walletdb.ErasePool(nIndex); LogPrintf("keypool keep %d\n", nIndex); } @@ -3122,7 +3110,7 @@ int64_t CWallet::GetOldestKeyPoolTime() return GetTime(); CKeyPool keypool; - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); if (IsHDEnabled() && CanSupportFeature(FEATURE_HD_SPLIT)) { @@ -3288,37 +3276,6 @@ std::set< std::set<CTxDestination> > CWallet::GetAddressGroupings() return ret; } -CAmount CWallet::GetAccountBalance(const std::string& strAccount, int nMinDepth, const isminefilter& filter) -{ - CWalletDB walletdb(strWalletFile); - return GetAccountBalance(walletdb, strAccount, nMinDepth, filter); -} - -CAmount CWallet::GetAccountBalance(CWalletDB& walletdb, const std::string& strAccount, int nMinDepth, const isminefilter& filter) -{ - CAmount nBalance = 0; - - // Tally wallet transactions - for (std::map<uint256, CWalletTx>::iterator it = mapWallet.begin(); it != mapWallet.end(); ++it) - { - const CWalletTx& wtx = (*it).second; - if (!CheckFinalTx(wtx) || wtx.GetBlocksToMaturity() > 0 || wtx.GetDepthInMainChain() < 0) - continue; - - CAmount nReceived, nSent, nFee; - wtx.GetAccountAmounts(strAccount, nReceived, nSent, nFee, filter); - - if (nReceived != 0 && wtx.GetDepthInMainChain() >= nMinDepth) - nBalance += nReceived; - nBalance -= nSent + nFee; - } - - // Tally internal accounting entries - nBalance += walletdb.GetAccountCreditDebit(strAccount); - - return nBalance; -} - std::set<CTxDestination> CWallet::GetAccountAddresses(const std::string& strAccount) const { LOCK(cs_wallet); @@ -3370,7 +3327,7 @@ void CWallet::GetAllReserveKeys(std::set<CKeyID>& setAddress) const { setAddress.clear(); - CWalletDB walletdb(strWalletFile); + CWalletDB walletdb(*dbw); LOCK2(cs_main, cs_wallet); BOOST_FOREACH(const int64_t& id, setKeyPool) @@ -3386,17 +3343,6 @@ void CWallet::GetAllReserveKeys(std::set<CKeyID>& setAddress) const } } -void CWallet::UpdatedTransaction(const uint256 &hashTx) -{ - { - LOCK(cs_wallet); - // Only notify UI if this transaction is in this wallet - std::map<uint256, CWalletTx>::const_iterator mi = mapWallet.find(hashTx); - if (mi != mapWallet.end()) - NotifyTransactionChanged(this, hashTx, CT_UPDATED); - } -} - void CWallet::GetScriptForMining(std::shared_ptr<CReserveScript> &script) { std::shared_ptr<CReserveKey> rKey = std::make_shared<CReserveKey>(this); @@ -3603,18 +3549,14 @@ bool CWallet::AddDestData(const CTxDestination &dest, const std::string &key, co return false; mapAddressBook[dest].destdata.insert(std::make_pair(key, value)); - if (!fFileBacked) - return true; - return CWalletDB(strWalletFile).WriteDestData(CBitcoinAddress(dest).ToString(), key, value); + return CWalletDB(*dbw).WriteDestData(CBitcoinAddress(dest).ToString(), key, value); } bool CWallet::EraseDestData(const CTxDestination &dest, const std::string &key) { if (!mapAddressBook[dest].destdata.erase(key)) return false; - if (!fFileBacked) - return true; - return CWalletDB(strWalletFile).EraseDestData(CBitcoinAddress(dest).ToString(), key); + return CWalletDB(*dbw).EraseDestData(CBitcoinAddress(dest).ToString(), key); } bool CWallet::LoadDestData(const CTxDestination &dest, const std::string &key, const std::string &value) @@ -3684,7 +3626,8 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile) if (GetBoolArg("-zapwallettxes", false)) { uiInterface.InitMessage(_("Zapping all transactions from wallet...")); - CWallet *tempWallet = new CWallet(walletFile); + std::unique_ptr<CWalletDBWrapper> dbw(new CWalletDBWrapper(&bitdb, walletFile)); + CWallet *tempWallet = new CWallet(std::move(dbw)); DBErrors nZapWalletRet = tempWallet->ZapWalletTx(vWtx); if (nZapWalletRet != DB_LOAD_OK) { InitError(strprintf(_("Error loading %s: Wallet corrupted"), walletFile)); @@ -3699,7 +3642,8 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile) int64_t nStart = GetTimeMillis(); bool fFirstRun = true; - CWallet *walletInstance = new CWallet(walletFile); + std::unique_ptr<CWalletDBWrapper> dbw(new CWalletDBWrapper(&bitdb, walletFile)); + CWallet *walletInstance = new CWallet(std::move(dbw)); DBErrors nLoadWalletRet = walletInstance->LoadWallet(fFirstRun); if (nLoadWalletRet != DB_LOAD_OK) { @@ -3790,7 +3734,7 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile) CBlockIndex *pindexRescan = chainActive.Genesis(); if (!GetBoolArg("-rescan", false)) { - CWalletDB walletdb(walletFile); + CWalletDB walletdb(*walletInstance->dbw); CBlockLocator locator; if (walletdb.ReadBestBlock(locator)) pindexRescan = FindForkInGlobalIndex(chainActive, locator); @@ -3823,7 +3767,7 @@ CWallet* CWallet::CreateWalletFromFile(const std::string walletFile) // Restore wallet transaction metadata after -zapwallettxes=1 if (GetBoolArg("-zapwallettxes", false) && GetArg("-zapwallettxes", "1") != "2") { - CWalletDB walletdb(walletFile); + CWalletDB walletdb(*walletInstance->dbw); BOOST_FOREACH(const CWalletTx& wtxOld, vWtx) { @@ -3867,7 +3811,7 @@ bool CWallet::InitLoadWallet() std::string walletFile = GetArg("-wallet", DEFAULT_WALLET_DAT); - if (walletFile.find_first_of("/\\") != std::string::npos) { + if (boost::filesystem::path(walletFile).filename() != walletFile) { return InitError(_("-wallet parameter must only specify a filename (not a path)")); } else if (SanitizeString(walletFile, SAFE_CHARS_FILENAME) != walletFile) { return InitError(_("Invalid characters in -wallet filename")); @@ -3983,38 +3927,7 @@ bool CWallet::ParameterInteraction() bool CWallet::BackupWallet(const std::string& strDest) { - if (!fFileBacked) - return false; - while (true) - { - { - LOCK(bitdb.cs_db); - if (!bitdb.mapFileUseCount.count(strWalletFile) || bitdb.mapFileUseCount[strWalletFile] == 0) - { - // Flush log data to the dat file - bitdb.CloseDb(strWalletFile); - bitdb.CheckpointLSN(strWalletFile); - bitdb.mapFileUseCount.erase(strWalletFile); - - // Copy wallet file - fs::path pathSrc = GetDataDir() / strWalletFile; - fs::path pathDest(strDest); - if (fs::is_directory(pathDest)) - pathDest /= strWalletFile; - - try { - fs::copy_file(pathSrc, pathDest, fs::copy_option::overwrite_if_exists); - LogPrintf("copied %s to %s\n", strWalletFile, pathDest.string()); - return true; - } catch (const fs::filesystem_error& e) { - LogPrintf("error copying %s to %s - %s\n", strWalletFile, pathDest.string(), e.what()); - return false; - } - } - } - MilliSleep(100); - } - return false; + return dbw->Backup(strDest); } CKeyPool::CKeyPool() |