refactor: remove redundant fOnlySafe argument

The fOnlySafe argument to AvailableCoins is now redundant, since #21359
added a similar field inside the CCoinControl struct.

Not all code paths set a CCoinControl instance, but when it's missing we
can default to using only safe inputs which is backwards-compatible.

Author: t-bast

src/wallet/rpcwallet.cpp

@@ -2970,8 +2970,9 @@ static RPCHelpMan listunspent()
         cctl.m_avoid_address_reuse = false;
         cctl.m_min_depth = nMinDepth;
         cctl.m_max_depth = nMaxDepth;
+        cctl.m_include_unsafe_inputs = include_unsafe;
         LOCK(pwallet->cs_wallet);
-        pwallet->AvailableCoins(vecOutputs, !include_unsafe, &cctl, nMinimumAmount, nMaximumAmount, nMinimumSumAmount, nMaximumCount);
+        pwallet->AvailableCoins(vecOutputs, &cctl, nMinimumAmount, nMaximumAmount, nMinimumSumAmount, nMaximumCount);
     }
 
     LOCK(pwallet->cs_wallet);

src/wallet/wallet.cpp

@@ -2197,7 +2197,7 @@ CAmount CWallet::GetAvailableBalance(const CCoinControl* coinControl) const
 
     CAmount balance = 0;
     std::vector<COutput> vCoins;
-    AvailableCoins(vCoins, true, coinControl);
+    AvailableCoins(vCoins, coinControl);
     for (const COutput& out : vCoins) {
         if (out.fSpendable) {
             balance += out.tx->tx->vout[out.i].nValue;
@@ -2206,7 +2206,7 @@ CAmount CWallet::GetAvailableBalance(const CCoinControl* coinControl) const
     return balance;
 }
 
-void CWallet::AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe, const CCoinControl* coinControl, const CAmount& nMinimumAmount, const CAmount& nMaximumAmount, const CAmount& nMinimumSumAmount, const uint64_t nMaximumCount) const
+void CWallet::AvailableCoins(std::vector<COutput>& vCoins, const CCoinControl* coinControl, const CAmount& nMinimumAmount, const CAmount& nMaximumAmount, const CAmount& nMinimumSumAmount, const uint64_t nMaximumCount) const
 {
     AssertLockHeld(cs_wallet);
 
@@ -2217,6 +2217,7 @@ void CWallet::AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe, const
     bool allow_used_addresses = !IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE) || (coinControl && !coinControl->m_avoid_address_reuse);
     const int min_depth = {coinControl ? coinControl->m_min_depth : DEFAULT_MIN_DEPTH};
     const int max_depth = {coinControl ? coinControl->m_max_depth : DEFAULT_MAX_DEPTH};
+    const bool only_safe = {coinControl ? !coinControl->m_include_unsafe_inputs : true};
 
     std::set<uint256> trusted_parents;
     for (const auto& entry : mapWallet)
@@ -2273,7 +2274,7 @@ void CWallet::AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe, const
             safeTx = false;
         }
 
-        if (fOnlySafe && !safeTx) {
+        if (only_safe && !safeTx) {
             continue;
         }
 
@@ -2843,7 +2844,7 @@ bool CWallet::CreateTransactionInternal(
         txNew.nLockTime = GetLocktimeForNewTransaction(chain(), GetLastBlockHash(), GetLastBlockHeight());
         {
             std::vector<COutput> vAvailableCoins;
-            AvailableCoins(vAvailableCoins, !coin_control.m_include_unsafe_inputs, &coin_control, 1, MAX_MONEY, MAX_MONEY, 0);
+            AvailableCoins(vAvailableCoins, &coin_control, 1, MAX_MONEY, MAX_MONEY, 0);
             CoinSelectionParams coin_selection_params; // Parameters for coin selection, init with dummy
             coin_selection_params.m_avoid_partial_spends = coin_control.m_avoid_partial_spends;
 

src/wallet/wallet.h

@@ -850,7 +850,7 @@ class CWallet final : public WalletStorage, public interfaces::Chain::Notificati
     /**
      * populate vCoins with vector of available COutputs.
      */
-    void AvailableCoins(std::vector<COutput>& vCoins, bool fOnlySafe = true, const CCoinControl* coinControl = nullptr, const CAmount& nMinimumAmount = 1, const CAmount& nMaximumAmount = MAX_MONEY, const CAmount& nMinimumSumAmount = MAX_MONEY, const uint64_t nMaximumCount = 0) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
+    void AvailableCoins(std::vector<COutput>& vCoins, const CCoinControl* coinControl = nullptr, const CAmount& nMinimumAmount = 1, const CAmount& nMaximumAmount = MAX_MONEY, const CAmount& nMinimumSumAmount = MAX_MONEY, const uint64_t nMaximumCount = 0) const EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
 
     /**
      * Return list of available coins and locked coins grouped by non-change output address.