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[Wallet] Add an option to keep the change address key, true by default

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This commit is contained in:
Jonas Schnelli 2016-12-19 09:04:05 +01:00
parent 9c9af5ab2d
commit 9aa4e6a6c2
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GPG Key ID: 29D4BCB6416F53EC
3 changed files with 13 additions and 3 deletions
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8
src/wallet/rpcwallet.cpp
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@ -2496,6 +2496,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request)
" \"changePosition\" (numeric, optional, default random) The index of the change output\n"
" \"includeWatching\" (boolean, optional, default false) Also select inputs which are watch only\n"
" \"lockUnspents\" (boolean, optional, default false) Lock selected unspent outputs\n"
" \"reserveChangeKey\" (boolean, optional, default true) Reserves the change output key from the keypool\n"
" \"feeRate\" (numeric, optional, default not set: makes wallet determine the fee) Set a specific feerate (" + CURRENCY_UNIT + " per KB)\n"
" \"subtractFeeFromOutputs\" (array, optional) A json array of integers.\n"
" The fee will be equally deducted from the amount of each specified output.\n"
@ -2528,6 +2529,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request)
int changePosition = -1;
bool includeWatching = false;
bool lockUnspents = false;
bool reserveChangeKey = true;
CFeeRate feeRate = CFeeRate(0);
bool overrideEstimatedFeerate = false;
UniValue subtractFeeFromOutputs;
@ -2549,6 +2551,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request)
{"changePosition", UniValueType(UniValue::VNUM)},
{"includeWatching", UniValueType(UniValue::VBOOL)},
{"lockUnspents", UniValueType(UniValue::VBOOL)},
{"reserveChangeKey", UniValueType(UniValue::VBOOL)},
{"feeRate", UniValueType()}, // will be checked below
{"subtractFeeFromOutputs", UniValueType(UniValue::VARR)},
},
@ -2572,6 +2575,9 @@ UniValue fundrawtransaction(const JSONRPCRequest& request)
if (options.exists("lockUnspents"))
lockUnspents = options["lockUnspents"].get_bool();
if (options.exists("reserveChangeKey"))
reserveChangeKey = options["reserveChangeKey"].get_bool();
if (options.exists("feeRate"))
{
feeRate = CFeeRate(AmountFromValue(options["feeRate"]));
@ -2608,7 +2614,7 @@ UniValue fundrawtransaction(const JSONRPCRequest& request)
CAmount nFeeOut;
string strFailReason;
if(!pwalletMain->FundTransaction(tx, nFeeOut, overrideEstimatedFeerate, feeRate, changePosition, strFailReason, includeWatching, lockUnspents, setSubtractFeeFromOutputs, changeAddress))
if(!pwalletMain->FundTransaction(tx, nFeeOut, overrideEstimatedFeerate, feeRate, changePosition, strFailReason, includeWatching, lockUnspents, setSubtractFeeFromOutputs, reserveChangeKey, changeAddress))
throw JSONRPCError(RPC_INTERNAL_ERROR, strFailReason);
UniValue result(UniValue::VOBJ);

6
src/wallet/wallet.cpp
View File

@ -2192,7 +2192,7 @@ bool CWallet::SelectCoins(const vector<COutput>& vAvailableCoins, const CAmount&
return res;
}
bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, const CFeeRate& specificFeeRate, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const std::set<int>& setSubtractFeeFromOutputs, const CTxDestination& destChange)
bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, const CFeeRate& specificFeeRate, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const std::set<int>& setSubtractFeeFromOutputs, bool keepReserveKey, const CTxDestination& destChange)
{
vector<CRecipient> vecSend;
@ -2241,6 +2241,10 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool ov
}
}
// optionally keep the change output key
if (keepReserveKey)
reservekey.KeepKey();
return true;
}

2
src/wallet/wallet.h
View File

@ -780,7 +780,7 @@ public:
* Insert additional inputs into the transaction by
* calling CreateTransaction();
*/
bool FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, const CFeeRate& specificFeeRate, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const std::set<int>& setSubtractFeeFromOutputs, const CTxDestination& destChange = CNoDestination());
bool FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, bool overrideEstimatedFeeRate, const CFeeRate& specificFeeRate, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const std::set<int>& setSubtractFeeFromOutputs, bool keepReserveKey = true, const CTxDestination& destChange = CNoDestination());
/**
* Create a new transaction paying the recipients with a set of coins