dash/src/dummywallet.cpp
Samuel Dobson 5821a1d23a
Merge #14582: wallet: always do avoid partial spends if fees are within a specified range
7f13dfb587dd6a7a5b7dfbfe689ae0ce818fe5c9 test: test the implicit avoid partial spends functionality (Karl-Johan Alm)
b82067bf696c53f22536f9ca2e51949c164f6b06 wallet: try -avoidpartialspends mode and use its result if fees are below threshold (Karl-Johan Alm)

Pull request description:

  The `-avoidpartialspends` feature is normally disabled, as it may affect the optimal fee for payments. This PR introduces a new parameter `-maxapsfee` (max avoid partial spends fee) which acts on the following values:
  * -1: disable partial spend avoidance completely (do not even try it)
  * 0: only do partial spend avoidance if fees are the same or better as the regular coin selection
  * 1..∞: use APS variant if the absolute fee difference is less than or equal to the max APS fee

  For values other than -1, the code will now try partial spend avoidance once, and if that gives a value within the accepted range, it will use that.

  Example: -maxapsfee=0.00001000 means the wallet will do regular coin select, APS coin select, and then pick AKS iff the absolute fee difference is <= 1000 satoshi.

  Edit: updated this to reflect the fact we are now using a max fee.

ACKs for top commit:
  fjahr:
    tested ACK 7f13dfb587dd6a7a5b7dfbfe689ae0ce818fe5c9
  achow101:
    ACK 7f13dfb587dd6a7a5b7dfbfe689ae0ce818fe5c9
  jonatack:
    ACK 7f13dfb58, code review, debug build, verified the test fails with `AssertionError: not(2 == 1)` for the number of vouts when `-maxapsfee=0.0001` is changed to 0, and verified the new logging with an added assertion.
  meshcollider:
    Code review ACK 7f13dfb587dd6a7a5b7dfbfe689ae0ce818fe5c9

Tree-SHA512: 475929df57f6191bb4e36bfbcad5a280a64bb0ecd8767b76cb2e44e2301235d0eb294a3f2fac5bbf15d35d7ecfba47acb2285feadb883c9ce31c08377e3afb3c
2024-03-18 16:01:38 +07:00

84 lines
2.4 KiB
C++

// Copyright (c) 2018-2020 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <logging.h>
#include <util/system.h>
#include <walletinitinterface.h>
class CWallet;
namespace interfaces {
class Chain;
class Handler;
class Wallet;
}
class DummyWalletInit : public WalletInitInterface {
public:
bool HasWalletSupport() const override {return false;}
void AddWalletOptions(ArgsManager& argsman) const override;
bool ParameterInteraction() const override {return true;}
void Construct(NodeContext& node) const override {LogPrintf("No wallet support compiled in!\n");}
// Dash Specific WalletInitInterface InitCoinJoinSettings
void AutoLockMasternodeCollaterals() const override {}
void InitCoinJoinSettings(const CoinJoinWalletManager& cjwalletman) const override {}
bool InitAutoBackup() const override {return true;}
};
void DummyWalletInit::AddWalletOptions(ArgsManager& argsman) const
{
argsman.AddHiddenArgs({
"-avoidpartialspends",
"-createwalletbackups=<n>",
"-disablewallet",
"-instantsendnotify=<cmd>",
"-keypool=<n>",
"-maxapsfee=<n>",
"-maxtxfee=<amt>",
"-rescan=<mode>",
"-salvagewallet",
"-spendzeroconfchange",
"-wallet=<path>",
"-walletbackupsdir=<dir>",
"-walletbroadcast",
"-walletdir=<dir>",
"-walletnotify=<cmd>",
"-discardfee=<amt>",
"-fallbackfee=<amt>",
"-mintxfee=<amt>",
"-paytxfee=<amt>",
"-txconfirmtarget=<n>",
"-hdseed=<hex>",
"-mnemonic=<text>",
"-mnemonicpassphrase=<text>",
"-usehd",
"-enablecoinjoin",
"-coinjoinamount=<n>",
"-coinjoinautostart",
"-coinjoindenomsgoal=<n>",
"-coinjoindenomshardcap=<n>",
"-coinjoinmultisession",
"-coinjoinrounds=<n>",
"-coinjoinsessions=<n>",
"-dblogsize=<n>",
"-flushwallet",
"-privdb",
"-walletrejectlongchains",
"-unsafesqlitesync"
});
}
const WalletInitInterface& g_wallet_init_interface = DummyWalletInit();
namespace interfaces {
std::unique_ptr<Wallet> MakeWallet(const std::shared_ptr<CWallet>& wallet, const CoinJoinWalletManager& cjwalletman)
{
throw std::logic_error("Wallet function called in non-wallet build.");
}
} // namespace interfaces