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Introduce CWalletTx::SubmitMemoryPoolAndRelay

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Higher wallet-tx method combining RelayWalletTransactions and
AcceptToMemoryPool, using new Chain::broadcastTransaction
This commit is contained in:
Antoine Riard 2019-04-11 15:58:53 +00:00
parent 8c8aa19b4b
commit 611291c198
2 changed files with 28 additions and 41 deletions
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62
src/wallet/wallet.cpp
View file

@ -2134,8 +2134,7 @@ void CWallet::ReacceptWalletTransactions(interfaces::Chain::Lock& locked_chain)
std::map<int64_t, CWalletTx*> mapSorted;
// Sort pending wallet transactions based on their initial wallet insertion order
for (std::pair<const uint256, CWalletTx>& item : mapWallet)
{
for (std::pair<const uint256, CWalletTx>& item : mapWallet) {
const uint256& wtxid = item.first;
CWalletTx& wtx = item.second;
assert(wtx.GetHash() == wtxid);
@ -2150,12 +2149,12 @@ void CWallet::ReacceptWalletTransactions(interfaces::Chain::Lock& locked_chain)
// Try to add wallet transactions to memory pool
for (const std::pair<const int64_t, CWalletTx*>& item : mapSorted) {
CWalletTx& wtx = *(item.second);
CValidationState state;
wtx.AcceptToMemoryPool(locked_chain, state);
std::string unused_err_string;
wtx.SubmitMemoryPoolAndRelay(unused_err_string, false, locked_chain);
}
}
bool CWalletTx::RelayWalletTransaction(interfaces::Chain::Lock& locked_chain)
bool CWalletTx::SubmitMemoryPoolAndRelay(std::string& err_string, bool relay, interfaces::Chain::Lock& locked_chain)
{
// Can't relay if wallet is not broadcasting
if (!pwallet->GetBroadcastTransactions()) return false;
@ -2165,17 +2164,21 @@ bool CWalletTx::RelayWalletTransaction(interfaces::Chain::Lock& locked_chain)
if (isAbandoned()) return false;
// Don't relay conflicted or already confirmed transactions
if (GetDepthInMainChain(locked_chain) != 0) return false;
// Don't relay transactions that aren't accepted to the mempool
CValidationState unused_state;
if (!InMempool() && !AcceptToMemoryPool(locked_chain, unused_state)) return false;
// Don't try to relay if the node is not connected to the p2p network
if (!pwallet->chain().p2pEnabled()) return false;
// Try to relay the transaction
pwallet->WalletLogPrintf("Relaying wtx %s\n", GetHash().ToString());
pwallet->chain().relayTransaction(GetHash());
return true;
// Submit transaction to mempool for relay
pwallet->WalletLogPrintf("Submitting wtx %s to mempool for relay\n", GetHash().ToString());
// We must set fInMempool here - while it will be re-set to true by the
// entered-mempool callback, if we did not there would be a race where a
// user could call sendmoney in a loop and hit spurious out of funds errors
// because we think that this newly generated transaction's change is
// unavailable as we're not yet aware that it is in the mempool.
//
// Irrespective of the failure reason, un-marking fInMempool
// out-of-order is incorrect - it should be unmarked when
// TransactionRemovedFromMempool fires.
bool ret = pwallet->chain().broadcastTransaction(tx, err_string, pwallet->m_default_max_tx_fee, relay);
fInMempool |= ret;
return ret;
}
std::set<uint256> CWalletTx::GetConflicts() const
@ -2366,7 +2369,7 @@ void CWallet::ResendWalletTransactions()
if (m_best_block_time < nLastResend) return;
nLastResend = GetTime();
int relayed_tx_count = 0;
int submitted_tx_count = 0;
{ // locked_chain and cs_wallet scope
auto locked_chain = chain().lock();
@ -2378,12 +2381,13 @@ void CWallet::ResendWalletTransactions()
// only rebroadcast unconfirmed txes older than 5 minutes before the
// last block was found
if (wtx.nTimeReceived > m_best_block_time - 5 * 60) continue;
if (wtx.RelayWalletTransaction(*locked_chain)) ++relayed_tx_count;
std::string unused_err_string;
if (wtx.SubmitMemoryPoolAndRelay(unused_err_string, true, *locked_chain)) ++submitted_tx_count;
}
} // locked_chain and cs_wallet
if (relayed_tx_count > 0) {
WalletLogPrintf("%s: rebroadcast %u unconfirmed transactions\n", __func__, relayed_tx_count);
if (submitted_tx_count > 0) {
WalletLogPrintf("%s: resubmit %u unconfirmed transactions\n", __func__, submitted_tx_count);
}
}
@ -3322,12 +3326,10 @@ bool CWallet::CommitTransaction(CTransactionRef tx, mapValue_t mapValue, std::ve
if (fBroadcastTransactions)
{
// Broadcast
if (!wtx.AcceptToMemoryPool(*locked_chain, state)) {
WalletLogPrintf("CommitTransaction(): Transaction cannot be broadcast immediately, %s\n", FormatStateMessage(state));
std::string err_string;
if (!wtx.SubmitMemoryPoolAndRelay(err_string, true, *locked_chain)) {
WalletLogPrintf("CommitTransaction(): Transaction cannot be broadcast immediately, %s\n", err_string);
// TODO: if we expect the failure to be long term or permanent, instead delete wtx from the wallet and return failure.
} else {
wtx.RelayWalletTransaction(*locked_chain);
}
}
}
@ -4662,18 +4664,6 @@ bool CWalletTx::IsImmatureCoinBase(interfaces::Chain::Lock& locked_chain) const
return GetBlocksToMaturity(locked_chain) > 0;
}
bool CWalletTx::AcceptToMemoryPool(interfaces::Chain::Lock& locked_chain, CValidationState& state)
{
// We must set fInMempool here - while it will be re-set to true by the
// entered-mempool callback, if we did not there would be a race where a
// user could call sendmoney in a loop and hit spurious out of funds errors
// because we think that this newly generated transaction's change is
// unavailable as we're not yet aware that it is in the mempool.
bool ret = locked_chain.submitToMemoryPool(tx, pwallet->m_default_max_tx_fee, state);
fInMempool |= ret;
return ret;
}
void CWallet::LearnRelatedScripts(const CPubKey& key, OutputType type)
{
if (key.IsCompressed() && (type == OutputType::P2SH_SEGWIT || type == OutputType::BECH32)) {

7
src/wallet/wallet.h
View file

@ -579,11 +579,8 @@ public:
int64_t GetTxTime() const;
// Pass this transaction to the node to relay to its peers
bool RelayWalletTransaction(interfaces::Chain::Lock& locked_chain);
/** Pass this transaction to the mempool. Fails if absolute fee exceeds absurd fee. */
bool AcceptToMemoryPool(interfaces::Chain::Lock& locked_chain, CValidationState& state);
// Pass this transaction to node for mempool insertion and relay to peers if flag set to true
bool SubmitMemoryPoolAndRelay(std::string& err_string, bool relay, interfaces::Chain::Lock& locked_chain);
// TODO: Remove "NO_THREAD_SAFETY_ANALYSIS" and replace it with the correct
// annotation "EXCLUSIVE_LOCKS_REQUIRED(pwallet->cs_wallet)". The annotation