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// Copyright (c) 2011-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_WALLET_COINCONTROL_H
#define BITCOIN_WALLET_COINCONTROL_H
#include <outputtype.h>
#include <policy/feerate.h>
#include <policy/fees.h>
#include <primitives/transaction.h>
#include <script/keyorigin.h>
#include <script/signingprovider.h>
#include <script/standard.h>
#include <optional>
#include <algorithm>
#include <map>
#include <set>
namespace wallet {
const int DEFAULT_MIN_DEPTH = 0;
const int DEFAULT_MAX_DEPTH = 9999999;
//! Default for -avoidpartialspends
static constexpr bool DEFAULT_AVOIDPARTIALSPENDS = false;
/** Coin Control Features. */
class CCoinControl
{
public:
//! Custom change destination, if not set an address is generated
CTxDestination destChange = CNoDestination();
//! Override the default change type if set, ignored if destChange is set
std::optional<OutputType> m_change_type;
//! If false, only safe inputs will be used
bool m_include_unsafe_inputs = false;
//! If true, the selection process can add extra unselected inputs from the wallet
//! while requires all selected inputs be used
bool m_allow_other_inputs = true;
//! Includes watch only addresses which are solvable
bool fAllowWatchOnly = false;
//! Override automatic min/max checks on fee, m_feerate must be set if true
bool fOverrideFeeRate = false;
//! Override the wallet's m_pay_tx_fee if set
std::optional<CFeeRate> m_feerate;
//! Override the default confirmation target if set
std::optional<unsigned int> m_confirm_target;
//! Override the wallet's m_signal_rbf if set
std::optional<bool> m_signal_bip125_rbf;
//! Avoid partial use of funds sent to a given address
bool m_avoid_partial_spends = DEFAULT_AVOIDPARTIALSPENDS;
//! Forbids inclusion of dirty (previously used) addresses
bool m_avoid_address_reuse = false;
//! Fee estimation mode to control arguments to estimateSmartFee
FeeEstimateMode m_fee_mode = FeeEstimateMode::UNSET;
//! Minimum chain depth value for coin availability
int m_min_depth = DEFAULT_MIN_DEPTH;
//! Maximum chain depth value for coin availability
int m_max_depth = DEFAULT_MAX_DEPTH;
//! SigningProvider that has pubkeys and scripts to do spend size estimation for external inputs
FlatSigningProvider m_external_provider;
CCoinControl();
bool HasSelected() const
{
return (setSelected.size() > 0);
}
bool IsSelected(const COutPoint& output) const
{
return (setSelected.count(output) > 0);
}
bool IsExternalSelected(const COutPoint& output) const
{
return (m_external_txouts.count(output) > 0);
}
bool GetExternalOutput(const COutPoint& outpoint, CTxOut& txout) const
{
const auto ext_it = m_external_txouts.find(outpoint);
if (ext_it == m_external_txouts.end()) {
return false;
}
txout = ext_it->second;
return true;
}
void Select(const COutPoint& output)
{
setSelected.insert(output);
}
void SelectExternal(const COutPoint& outpoint, const CTxOut& txout)
{
setSelected.insert(outpoint);
m_external_txouts.emplace(outpoint, txout);
}
void UnSelect(const COutPoint& output)
{
setSelected.erase(output);
}
void UnSelectAll()
{
setSelected.clear();
}
void ListSelected(std::vector<COutPoint>& vOutpoints) const
{
vOutpoints.assign(setSelected.begin(), setSelected.end());
}
void SetInputWeight(const COutPoint& outpoint, int64_t weight)
{
m_input_weights[outpoint] = weight;
}
bool HasInputWeight(const COutPoint& outpoint) const
{
return m_input_weights.count(outpoint) > 0;
}
int64_t GetInputWeight(const COutPoint& outpoint) const
{
auto it = m_input_weights.find(outpoint);
assert(it != m_input_weights.end());
return it->second;
}
private:
std::set<COutPoint> setSelected;
std::map<COutPoint, CTxOut> m_external_txouts;
//! Map of COutPoints to the maximum weight for that input
std::map<COutPoint, int64_t> m_input_weights;
};
} // namespace wallet
#endif // BITCOIN_WALLET_COINCONTROL_H
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