diff options
Diffstat (limited to 'src/wallet.cpp')
| -rw-r--r-- | src/wallet.cpp | 47 |
1 files changed, 28 insertions, 19 deletions
diff --git a/src/wallet.cpp b/src/wallet.cpp index 9b9a1d1735..8504c0a287 100644 --- a/src/wallet.cpp +++ b/src/wallet.cpp @@ -26,6 +26,7 @@ using namespace std; * Settings */ CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE); +CAmount maxTxFee = DEFAULT_TRANSACTION_MAXFEE; unsigned int nTxConfirmTarget = 1; bool bSpendZeroConfChange = true; bool fSendFreeTransactions = false; @@ -1525,27 +1526,32 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, CAmount> >& vecSend, } dPriority = wtxNew.ComputePriority(dPriority, nBytes); - CAmount nFeeNeeded = GetMinimumFee(nBytes, nTxConfirmTarget, mempool); + // Can we complete this as a free transaction? + if (fSendFreeTransactions && nBytes <= MAX_FREE_TRANSACTION_CREATE_SIZE) + { + // Not enough fee: enough priority? + double dPriorityNeeded = mempool.estimatePriority(nTxConfirmTarget); + // Not enough mempool history to estimate: use hard-coded AllowFree. + if (dPriorityNeeded <= 0 && AllowFree(dPriority)) + break; + + // Small enough, and priority high enough, to send for free + if (dPriorityNeeded > 0 && dPriority >= dPriorityNeeded) + break; + } - if (nFeeRet >= nFeeNeeded) - break; // Done, enough fee included. + CAmount nFeeNeeded = GetMinimumFee(nBytes, nTxConfirmTarget, mempool); - // Too big to send for free? Include more fee and try again: - if (!fSendFreeTransactions || nBytes > MAX_FREE_TRANSACTION_CREATE_SIZE) + // If we made it here and we aren't even able to meet the relay fee on the next pass, give up + // because we must be at the maximum allowed fee. + if (nFeeNeeded < ::minRelayTxFee.GetFee(nBytes)) { - nFeeRet = nFeeNeeded; - continue; + strFailReason = _("Transaction too large for fee policy"); + return false; } - // Not enough fee: enough priority? - double dPriorityNeeded = mempool.estimatePriority(nTxConfirmTarget); - // Not enough mempool history to estimate: use hard-coded AllowFree. - if (dPriorityNeeded <= 0 && AllowFree(dPriority)) - break; - - // Small enough, and priority high enough, to send for free - if (dPriorityNeeded > 0 && dPriority >= dPriorityNeeded) - break; + if (nFeeRet >= nFeeNeeded) + break; // Done, enough fee included. // Include more fee and try again. nFeeRet = nFeeNeeded; @@ -1617,9 +1623,6 @@ CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarge { // payTxFee is user-set "I want to pay this much" CAmount nFeeNeeded = payTxFee.GetFee(nTxBytes); - // prevent user from paying a non-sense fee (like 1 satoshi): 0 < fee < minRelayFee - if (nFeeNeeded > 0 && nFeeNeeded < ::minRelayTxFee.GetFee(nTxBytes)) - nFeeNeeded = ::minRelayTxFee.GetFee(nTxBytes); // user selected total at least (default=true) if (fPayAtLeastCustomFee && nFeeNeeded > 0 && nFeeNeeded < payTxFee.GetFeePerK()) nFeeNeeded = payTxFee.GetFeePerK(); @@ -1630,6 +1633,12 @@ CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarge // back to a hard-coded fee if (nFeeNeeded == 0) nFeeNeeded = minTxFee.GetFee(nTxBytes); + // prevent user from paying a non-sense fee (like 1 satoshi): 0 < fee < minRelayFee + if (nFeeNeeded < ::minRelayTxFee.GetFee(nTxBytes)) + nFeeNeeded = ::minRelayTxFee.GetFee(nTxBytes); + // But always obey the maximum + if (nFeeNeeded > maxTxFee) + nFeeNeeded = maxTxFee; return nFeeNeeded; } |