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[wallet] Construct CWalletTx objects in CommitTransaction

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Construct CWalletTx objects in CWallet::CommitTransaction, instead of having
callers do it. This ensures CWalletTx objects are constructed in a uniform way
and all fields are set.

This also makes it possible to avoid confusing and wasteful CWalletTx copies in
https://github.com/bitcoin/bitcoin/pull/9381

There is no change in behavior.
This commit is contained in:
Russell Yanofsky
2017-02-02 15:30:03 -05:00
parent 29fad97c32
commit a128bdc9e1
8 changed files with 68 additions and 74 deletions
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33
src/wallet/wallet.cpp
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@@ -2631,13 +2631,13 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nC
LOCK2(cs_main, cs_wallet);
CReserveKey reservekey(this);
CWalletTx wtx;
if (!CreateTransaction(vecSend, wtx, reservekey, nFeeRet, nChangePosInOut, strFailReason, coinControl, false)) {
CTransactionRef tx_new;
if (!CreateTransaction(vecSend, tx_new, reservekey, nFeeRet, nChangePosInOut, strFailReason, coinControl, false)) {
return false;
}
if (nChangePosInOut != -1) {
tx.vout.insert(tx.vout.begin() + nChangePosInOut, wtx.tx->vout[nChangePosInOut]);
tx.vout.insert(tx.vout.begin() + nChangePosInOut, tx_new->vout[nChangePosInOut]);
// We don't have the normal Create/Commit cycle, and don't want to risk
// reusing change, so just remove the key from the keypool here.
reservekey.KeepKey();
@@ -2646,11 +2646,11 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nC
// Copy output sizes from new transaction; they may have had the fee
// subtracted from them.
for (unsigned int idx = 0; idx < tx.vout.size(); idx++) {
tx.vout[idx].nValue = wtx.tx->vout[idx].nValue;
tx.vout[idx].nValue = tx_new->vout[idx].nValue;
}
// Add new txins while keeping original txin scriptSig/order.
for (const CTxIn& txin : wtx.tx->vin) {
for (const CTxIn& txin : tx_new->vin) {
if (!coinControl.IsSelected(txin.prevout)) {
tx.vin.push_back(txin);
@@ -2691,7 +2691,7 @@ OutputType CWallet::TransactionChangeType(OutputType change_type, const std::vec
return g_address_type;
}
bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet,
bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CTransactionRef& tx, CReserveKey& reservekey, CAmount& nFeeRet,
int& nChangePosInOut, std::string& strFailReason, const CCoinControl& coin_control, bool sign)
{
CAmount nValue = 0;
@@ -2715,8 +2715,6 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
return false;
}
wtxNew.fTimeReceivedIsTxTime = true;
wtxNew.BindWallet(this);
CMutableTransaction txNew;
// Discourage fee sniping.
@@ -2804,7 +2802,6 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
nChangePosInOut = nChangePosRequest;
txNew.vin.clear();
txNew.vout.clear();
wtxNew.fFromMe = true;
bool fFirst = true;
CAmount nValueToSelect = nValue;
@@ -3019,11 +3016,11 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
}
}
// Embed the constructed transaction data in wtxNew.
wtxNew.SetTx(MakeTransactionRef(std::move(txNew)));
// Return the constructed transaction data.
tx = MakeTransactionRef(std::move(txNew));
// Limit size
if (GetTransactionWeight(*wtxNew.tx) >= MAX_STANDARD_TX_WEIGHT)
if (GetTransactionWeight(*tx) >= MAX_STANDARD_TX_WEIGHT)
{
strFailReason = _("Transaction too large");
return false;
@@ -3033,7 +3030,7 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
if (gArgs.GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS)) {
// Lastly, ensure this tx will pass the mempool's chain limits
LockPoints lp;
CTxMemPoolEntry entry(wtxNew.tx, 0, 0, 0, false, 0, lp);
CTxMemPoolEntry entry(tx, 0, 0, 0, false, 0, lp);
CTxMemPool::setEntries setAncestors;
size_t nLimitAncestors = gArgs.GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT);
size_t nLimitAncestorSize = gArgs.GetArg("-limitancestorsize", DEFAULT_ANCESTOR_SIZE_LIMIT)*1000;
@@ -3060,10 +3057,18 @@ bool CWallet::CreateTransaction(const std::vector<CRecipient>& vecSend, CWalletT
/**
* Call after CreateTransaction unless you want to abort
*/
bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey, CConnman* connman, CValidationState& state)
bool CWallet::CommitTransaction(CTransactionRef tx, mapValue_t mapValue, std::vector<std::pair<std::string, std::string>> orderForm, std::string fromAccount, CReserveKey& reservekey, CConnman* connman, CValidationState& state)
{
{
LOCK2(cs_main, cs_wallet);
CWalletTx wtxNew(this, std::move(tx));
wtxNew.mapValue = std::move(mapValue);
wtxNew.vOrderForm = std::move(orderForm);
wtxNew.strFromAccount = std::move(fromAccount);
wtxNew.fTimeReceivedIsTxTime = true;
wtxNew.fFromMe = true;
LogPrintf("CommitTransaction:\n%s", wtxNew.tx->ToString());
{
// Take key pair from key pool so it won't be used again