Auto merge of #1431 - bitcartel:master_1373_taddr_coinbase_error, r=bitcartel
Return a more informative error message when trying to spend coinbase; select non-coinbase inputs when sending to a transparent output if needed For #1373 and #1519 Code change: - Extra parameter added to AvailableCoins to include or exclude Coinbase coins. Default value of parameter is 'true' as current behaviour is to include Coinbase coins. - SelectCoins, used for sending taddr->taddr, will now exclude Coinbase coins. Unit test: Tried to write a test to focus on the extra parameter added to AvailableCoins but could not. Empirical testing on Testnet: Current behaviour is that upstream RPC commands sendfrom and sendtoaddress try to spend coinbase coins returned by AvailableCoins. So the user will see: ``` ./zcash-cli sendtoaddress mrEGRmGJhmwAa4MQjzGd86ry63vrvovu9b 1000.0 error: {"code":-6,"message":"Insufficient funds"} ./zcash-cli sendtoaddress mrEGRmGJhmwAa4MQjzGd86ry63vrvovu9b 0.00003000 error: {"code":-4,"message":"Error: The transaction was rejected! This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here."} ./zcash-cli sendfrom "" mrEGRmGJhmwAa4MQjzGd86ry63vrvovu9b 0.00003000 error: {"code":-4,"message":"Error: The transaction was rejected! This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here."} ``` After fix is applied: ``` ./zcash-cli sendtoaddress mrEGRmGJhmwAa4MQjzGd86ry63vrvovu9b 1000.0 error: {"code":-6,"message":"Insufficient funds"} ./zcash-cli sendtoaddress mrEGRmGJhmwAa4MQjzGd86ry63vrvovu9b 0.00003000 error: {"code":-4,"message":"Coinbase funds can only be sent to a zaddr"} ``` When non-coinbase UTXOs exist, they will now be selected and used: ``` ./zcash-cli z_sendmany tnPJZHeVxegCg91utaquBRPEDBGjozfz9iLDHt7zvphFbZdspNgkTVLCGjDcadQBKNyUwKs8pNjDXuEZKrE1aNLpFwHgz4t '[{"address":"mx5fTRhLZwbYE7ZqhAPueZgQGSnwTbdvKU", "amount":0.01}]' ./zcash-cli sendtoaddress mrEGRmGJhmwAa4MQjzGd86ry63vrvovu9b 1000.0 error: {"code":-6,"message":"Insufficient funds"} ./zcash-cli sendtoaddress mrEGRmGJhmwAa4MQjzGd86ry63vrvovu9b 0.00003000 9818e543ac2f689d4ce8b52087607d73fecd771d45d316a1d9db092f0485aff2 ./zcash-cli sendfrom "" mrEGRmGJhmwAa4MQjzGd86ry63vrvovu9b 0.00003000 899f2894823f51f15fc73b5e0871ac943edbe0ff88e1635f86906087b72caf30 ```
This commit is contained in:
commit
ec8dc3a88a
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@ -11,6 +11,7 @@ export BITCOIND=${REAL_BITCOIND}
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#Run the tests
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testScripts=(
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'wallet_protectcoinbase.py'
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'wallet.py'
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'wallet_nullifiers.py'
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'listtransactions.py'
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@ -0,0 +1,126 @@
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#!/usr/bin/env python2
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# Copyright (c) 2016 The Zcash developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import *
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from time import *
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class Wallet2Test (BitcoinTestFramework):
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def setup_chain(self):
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print("Initializing test directory "+self.options.tmpdir)
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initialize_chain_clean(self.options.tmpdir, 4)
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# Start nodes with -regtestprotectcoinbase to set fCoinbaseMustBeProtected to true.
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def setup_network(self, split=False):
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self.nodes = start_nodes(3, self.options.tmpdir, extra_args=[['-regtestprotectcoinbase']] * 3 )
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connect_nodes_bi(self.nodes,0,1)
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connect_nodes_bi(self.nodes,1,2)
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connect_nodes_bi(self.nodes,0,2)
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self.is_network_split=False
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self.sync_all()
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def wait_for_operationd_success(self, myopid):
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print('waiting for async operation {}'.format(myopid))
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opids = []
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opids.append(myopid)
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timeout = 120
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status = None
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for x in xrange(1, timeout):
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results = self.nodes[0].z_getoperationresult(opids)
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if len(results)==0:
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sleep(1)
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else:
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status = results[0]["status"]
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break
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print('...returned status: {}'.format(status))
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assert_equal("success", status)
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def run_test (self):
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print "Mining blocks..."
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self.nodes[0].generate(4)
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walletinfo = self.nodes[0].getwalletinfo()
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assert_equal(walletinfo['immature_balance'], 40)
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assert_equal(walletinfo['balance'], 0)
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self.sync_all()
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self.nodes[1].generate(101)
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self.sync_all()
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assert_equal(self.nodes[0].getbalance(), 40)
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assert_equal(self.nodes[1].getbalance(), 10)
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assert_equal(self.nodes[2].getbalance(), 0)
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# Send will fail because we are enforcing the consensus rule that
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# coinbase utxos can only be sent to a zaddr.
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errorString = ""
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try:
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self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 1.0)
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except JSONRPCException,e:
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errorString = e.error['message']
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assert_equal("Coinbase funds can only be sent to a zaddr" in errorString, True)
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# send node 0 taddr to node 0 zaddr
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mytaddr = self.nodes[0].getnewaddress()
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myzaddr = self.nodes[0].z_getnewaddress()
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recipients = []
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recipients.append({"address":myzaddr, "amount":20.0})
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myopid = self.nodes[0].z_sendmany(mytaddr, recipients)
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self.wait_for_operationd_success(myopid)
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self.nodes[1].generate(1)
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self.sync_all()
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# check balances (the z_sendmany consumes 3 coinbase utxos)
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resp = self.nodes[0].z_gettotalbalance()
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assert_equal(Decimal(resp["transparent"]), Decimal('10.0'))
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assert_equal(Decimal(resp["private"]), Decimal('29.9999'))
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assert_equal(Decimal(resp["total"]), Decimal('39.9999'))
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# convert note to transparent funds
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recipients = []
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recipients.append({"address":mytaddr, "amount":20.0})
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myopid = self.nodes[0].z_sendmany(myzaddr, recipients)
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self.wait_for_operationd_success(myopid)
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self.nodes[1].generate(1)
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self.sync_all()
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# check balances
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resp = self.nodes[0].z_gettotalbalance()
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assert_equal(Decimal(resp["transparent"]), Decimal('30.0'))
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assert_equal(Decimal(resp["private"]), Decimal('9.9998'))
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assert_equal(Decimal(resp["total"]), Decimal('39.9998'))
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# Send will fail because send amount is too big, even when including coinbase utxos
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errorString = ""
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try:
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self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 99999.0)
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except JSONRPCException,e:
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errorString = e.error['message']
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assert_equal("Insufficient funds" in errorString, True)
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# Send will fail because of insufficient funds unless sender uses coinbase utxos
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try:
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self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 21.0)
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except JSONRPCException,e:
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errorString = e.error['message']
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assert_equal("Insufficient funds, coinbase funds can only be spent after they have been sent to a zaddr" in errorString, True)
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# Send will succeed because the balance of non-coinbase utxos is 20.0
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try:
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self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 19.0)
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except JSONRPCException:
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assert(False)
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self.nodes[1].generate(10)
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self.sync_all()
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# check balance
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assert_equal(self.nodes[2].getbalance(), Decimal('19'))
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if __name__ == '__main__':
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Wallet2Test ().main ()
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@ -336,6 +336,11 @@ CChainParams &Params(CBaseChainParams::Network network) {
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void SelectParams(CBaseChainParams::Network network) {
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SelectBaseParams(network);
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pCurrentParams = &Params(network);
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// Some python qa rpc tests need to enforce the coinbase consensus rule
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if (network == CBaseChainParams::REGTEST && mapArgs.count("-regtestprotectcoinbase")) {
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regTestParams.SetRegTestCoinbaseMustBeProtected();
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}
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}
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bool SelectParamsFromCommandLine()
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@ -83,6 +83,8 @@ public:
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std::string GetFoundersRewardAddressAtIndex(int i) const;
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/** #1398 to return a fixed founders reward script for miner_tests */
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bool fMinerTestModeForFoundersRewardScript = false;
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/** Enforce coinbase consensus rule in regtest mode */
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void SetRegTestCoinbaseMustBeProtected() { consensus.fCoinbaseMustBeProtected = true; }
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protected:
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CChainParams() {}
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@ -715,7 +715,7 @@ bool AsyncRPCOperation_sendmany::find_utxos(bool fAcceptCoinbase=false) {
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LOCK2(cs_main, pwalletMain->cs_wallet);
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pwalletMain->AvailableCoins(vecOutputs, false, NULL, true);
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pwalletMain->AvailableCoins(vecOutputs, false, NULL, true, fAcceptCoinbase);
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BOOST_FOREACH(const COutput& out, vecOutputs) {
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if (out.nDepth < mindepth_) {
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@ -2102,7 +2102,7 @@ CAmount CWallet::GetImmatureWatchOnlyBalance() const
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/**
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* populate vCoins with vector of available COutputs.
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*/
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void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const CCoinControl *coinControl, bool fIncludeZeroValue) const
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void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const CCoinControl *coinControl, bool fIncludeZeroValue, bool fIncludeCoinBase) const
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{
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vCoins.clear();
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@ -2119,6 +2119,9 @@ void CWallet::AvailableCoins(vector<COutput>& vCoins, bool fOnlyConfirmed, const
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if (fOnlyConfirmed && !pcoin->IsTrusted())
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continue;
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if (pcoin->IsCoinBase() && !fIncludeCoinBase)
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continue;
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if (pcoin->IsCoinBase() && pcoin->GetBlocksToMaturity() > 0)
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continue;
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return true;
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}
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bool CWallet::SelectCoins(const CAmount& nTargetValue, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet, const CCoinControl* coinControl) const
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bool CWallet::SelectCoins(const CAmount& nTargetValue, set<pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet, bool& fOnlyCoinbaseCoinsRet, bool& fNeedCoinbaseCoinsRet, const CCoinControl* coinControl) const
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{
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vector<COutput> vCoins;
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AvailableCoins(vCoins, true, coinControl);
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// Output parameter fOnlyCoinbaseCoinsRet is set to true when the only available coins are coinbase utxos.
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vector<COutput> vCoinsNoCoinbase, vCoinsWithCoinbase;
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AvailableCoins(vCoinsNoCoinbase, true, coinControl, false, false);
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AvailableCoins(vCoinsWithCoinbase, true, coinControl, false, true);
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fOnlyCoinbaseCoinsRet = vCoinsNoCoinbase.size() == 0 && vCoinsWithCoinbase.size() > 0;
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// If coinbase utxos can only be sent to zaddrs, exclude any coinbase utxos from coin selection.
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bool fProtectCoinbase = Params().GetConsensus().fCoinbaseMustBeProtected;
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vector<COutput> vCoins = (fProtectCoinbase) ? vCoinsNoCoinbase : vCoinsWithCoinbase;
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// Output parameter fNeedCoinbaseCoinsRet is set to true if coinbase utxos need to be spent to meet target amount
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if (fProtectCoinbase && vCoinsWithCoinbase.size() > vCoinsNoCoinbase.size()) {
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CAmount value = 0;
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for (const COutput& out : vCoinsNoCoinbase) {
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if (!out.fSpendable) {
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continue;
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}
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value += out.tx->vout[out.i].nValue;
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}
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if (value <= nTargetValue) {
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CAmount valueWithCoinbase = 0;
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for (const COutput& out : vCoinsWithCoinbase) {
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if (!out.fSpendable) {
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continue;
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}
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valueWithCoinbase += out.tx->vout[out.i].nValue;
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}
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fNeedCoinbaseCoinsRet = (valueWithCoinbase >= nTargetValue);
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}
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}
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// coin control -> return all selected outputs (we want all selected to go into the transaction for sure)
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if (coinControl && coinControl->HasSelected())
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// Choose coins to use
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set<pair<const CWalletTx*,unsigned int> > setCoins;
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CAmount nValueIn = 0;
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if (!SelectCoins(nTotalValue, setCoins, nValueIn, coinControl))
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bool fOnlyCoinbaseCoins = false;
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bool fNeedCoinbaseCoins = false;
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if (!SelectCoins(nTotalValue, setCoins, nValueIn, fOnlyCoinbaseCoins, fNeedCoinbaseCoins, coinControl))
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{
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if (fOnlyCoinbaseCoins && Params().GetConsensus().fCoinbaseMustBeProtected) {
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strFailReason = _("Coinbase funds can only be sent to a zaddr");
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} else if (fNeedCoinbaseCoins) {
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strFailReason = _("Insufficient funds, coinbase funds can only be spent after they have been sent to a zaddr");
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} else {
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strFailReason = _("Insufficient funds");
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}
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return false;
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}
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BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
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@ -565,7 +565,7 @@ public:
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class CWallet : public CCryptoKeyStore, public CValidationInterface
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{
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private:
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bool SelectCoins(const CAmount& nTargetValue, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet, const CCoinControl *coinControl = NULL) const;
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bool SelectCoins(const CAmount& nTargetValue, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet, bool& fOnlyCoinbaseCoinsRet, bool& fNeedCoinbaseCoinsRet, const CCoinControl *coinControl = NULL) const;
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CWalletDB *pwalletdbEncryption;
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//! check whether we are allowed to upgrade (or already support) to the named feature
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bool CanSupportFeature(enum WalletFeature wf) { AssertLockHeld(cs_wallet); return nWalletMaxVersion >= wf; }
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void AvailableCoins(std::vector<COutput>& vCoins, bool fOnlyConfirmed=true, const CCoinControl *coinControl = NULL, bool fIncludeZeroValue=false) const;
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void AvailableCoins(std::vector<COutput>& vCoins, bool fOnlyConfirmed=true, const CCoinControl *coinControl = NULL, bool fIncludeZeroValue=false, bool fIncludeCoinBase=true) const;
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bool SelectCoinsMinConf(const CAmount& nTargetValue, int nConfMine, int nConfTheirs, std::vector<COutput> vCoins, std::set<std::pair<const CWalletTx*,unsigned int> >& setCoinsRet, CAmount& nValueRet) const;
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bool IsSpent(const uint256& hash, unsigned int n) const;
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