Set minimum UTXO value to be used for staking to 0.1 BLK

lateminer · Feb 17, 2024 · a077e17 · a077e17
1 parent c39431c
commit a077e17
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Showing 4 changed files with 11 additions and 0 deletions.
diff --git a/src/wallet/init.cpp b/src/wallet/init.cpp
@@ -93,6 +93,8 @@ void WalletInit::AddWalletOptions(ArgsManager& argsman) const
     argsman.AddArg("-staking=<true/false>", strprintf("Enables or disables staking (default: %u)", node::DEFAULT_STAKE), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
     argsman.AddArg("-stakecache=<true/false>", strprintf("Enables or disables the staking cache; significantly improves staking performance, but can use a lot of memory (default: %u)", node::DEFAULT_STAKE_CACHE), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
     argsman.AddArg("-staketimio=<n>", strprintf("Proof of stake timeout. (default: %u)", node::DEFAULT_STAKETIMIO), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
+
+    argsman.AddArg("-minstakingamount=<amt>", strprintf("Minimum input value to be used for staking (default: %u)", wallet::DEFAULT_MIN_STAKING_AMOUNT), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
     argsman.AddArg("-reservebalance=<amt>", strprintf("Reserved balance not used for staking (default: %u)", wallet::DEFAULT_RESERVE_BALANCE), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);
     argsman.AddArg("-donatetodevfund=<n>", strprintf("Donate the specified percentage of staking rewards to the dev fund (%u to %u, default: %u)",
         wallet::MIN_DONATION_PERCENTAGE, wallet::MAX_DONATION_PERCENTAGE, wallet::DEFAULT_DONATION_PERCENTAGE), ArgsManager::ALLOW_ANY, OptionsCategory::WALLET);

diff --git a/src/wallet/staking.cpp b/src/wallet/staking.cpp
@@ -135,6 +135,9 @@ void AvailableCoinsForStaking(const CWallet& wallet,
             const CTxOut& output = wtx.tx->vout[i];
             const COutPoint outpoint(wtxid, i);
 
+            if (output.nValue < wallet.m_min_staking_amount)
+                continue;
+
             if (output.nValue < params.min_amount || output.nValue > params.max_amount)
                 continue;
 

diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
@@ -3090,6 +3090,9 @@ std::shared_ptr<CWallet> CWallet::Create(WalletContext& context, const std::stri
 
     walletInstance->m_spend_zero_conf_change = args.GetBoolArg("-spendzeroconfchange", DEFAULT_SPEND_ZEROCONF_CHANGE);
 
+    std::optional<CAmount> min_staking_amount = ParseMoney(gArgs.GetArg("-minstakingamount", FormatMoney(DEFAULT_MIN_STAKING_AMOUNT)));
+    walletInstance->m_min_staking_amount = min_staking_amount.value_or(DEFAULT_MIN_STAKING_AMOUNT);
+
     std::optional<CAmount> reserve_balance = ParseMoney(gArgs.GetArg("-reservebalance", FormatMoney(DEFAULT_RESERVE_BALANCE)));
     walletInstance->m_reserve_balance = reserve_balance.value_or(DEFAULT_RESERVE_BALANCE);
 

diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
@@ -136,6 +136,8 @@ constexpr CAmount HIGH_MAX_TX_FEE{100 * HIGH_TX_FEE_PER_KB};
 //! Pre-calculated constants for input size estimation in *virtual size*
 static constexpr size_t DUMMY_NESTED_P2WPKH_INPUT_SIZE = 91;
 
+//! -minstakingamount default
+static const CAmount DEFAULT_MIN_STAKING_AMOUNT = 0.1 * COIN;
 //! -reservebalance default
 static const CAmount DEFAULT_RESERVE_BALANCE = 0;
 //! -donatetodevfund default
@@ -717,6 +719,7 @@ class CWallet final : public WalletStorage, public interfaces::Chain::Notificati
     // provides no real security
     std::atomic<bool> m_wallet_unlock_staking_only{false};
     int64_t m_last_coin_stake_search_interval{0};
+    CAmount m_min_staking_amount{DEFAULT_MIN_STAKING_AMOUNT};
     CAmount m_reserve_balance{DEFAULT_RESERVE_BALANCE};
     unsigned int m_donation_percentage{DEFAULT_DONATION_PERCENTAGE};
     std::atomic<bool> m_enabled_staking{false};