wallet: Introduce constant for `-txconfirmtarget` default

src/init.cpp

@@ -333,7 +333,7 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += HelpMessageOpt("-salvagewallet", _("Attempt to recover private keys from a corrupt wallet.dat") + " " + _("on startup"));
     strUsage += HelpMessageOpt("-sendfreetransactions", strprintf(_("Send transactions as zero-fee transactions if possible (default: %u)"), 0));
     strUsage += HelpMessageOpt("-spendzeroconfchange", strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), 1));
-    strUsage += HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), 1));
+    strUsage += HelpMessageOpt("-txconfirmtarget=<n>", strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), DEFAULT_TX_CONFIRM_TARGET));
     strUsage += HelpMessageOpt("-maxtxfee=<amt>", strprintf(_("Maximum total fees to use in a single wallet transaction; setting this too low may abort large transactions (default: %s)"),
         FormatMoney(maxTxFee)));
     strUsage += HelpMessageOpt("-upgradewallet", _("Upgrade wallet to latest format") + " " + _("on startup"));
@@ -834,7 +834,7 @@ bool AppInit2(boost::thread_group& threadGroup, CScheduler& scheduler)
                                        mapArgs["-maxtxfee"], ::minRelayTxFee.ToString()));
         }
     }
-    nTxConfirmTarget = GetArg("-txconfirmtarget", 1);
+    nTxConfirmTarget = GetArg("-txconfirmtarget", DEFAULT_TX_CONFIRM_TARGET);
     bSpendZeroConfChange = GetBoolArg("-spendzeroconfchange", true);
     fSendFreeTransactions = GetBoolArg("-sendfreetransactions", false);
 

src/wallet/wallet.cpp

@@ -30,7 +30,7 @@ using namespace std;
  */
 CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE);
 CAmount maxTxFee = DEFAULT_TRANSACTION_MAXFEE;
-unsigned int nTxConfirmTarget = 1;
+unsigned int nTxConfirmTarget = DEFAULT_TX_CONFIRM_TARGET;
 bool bSpendZeroConfChange = true;
 bool fSendFreeTransactions = false;
 bool fPayAtLeastCustomFee = true;

src/wallet/wallet.h

@@ -44,6 +44,8 @@ static const CAmount DEFAULT_TRANSACTION_FEE = 0;
 static const CAmount nHighTransactionFeeWarning = 0.01 * COIN;
 //! -maxtxfee default
 static const CAmount DEFAULT_TRANSACTION_MAXFEE = 0.1 * COIN;
+//! -txconfirmtarget default
+static const unsigned int DEFAULT_TX_CONFIRM_TARGET = 1;
 //! -maxtxfee will warn if called with a higher fee than this amount (in satoshis)
 static const CAmount nHighTransactionMaxFeeWarning = 100 * nHighTransactionFeeWarning;
 //! Largest (in bytes) free transaction we're willing to create