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Merge pull request #815

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b0850a9 wallet: add a new sweep_all command and RPC command (moneromooo-monero)
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Riccardo Spagni 2016-04-26 18:08:09 +02:00
commit 714dcc2866
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GPG key ID: 55432DF31CCD4FCD
7 changed files with 531 additions and 63 deletions
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127
src/wallet/wallet2.cpp
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@ -2570,6 +2570,133 @@ std::vector<wallet2::pending_tx> wallet2::create_transactions_2(std::vector<cryp
return ptx_vector;
}
std::vector<wallet2::pending_tx> wallet2::create_transactions_all(const cryptonote::account_public_address &address, const size_t fake_outs_count, const uint64_t unlock_time, const uint64_t fee_UNUSED, const std::vector<uint8_t> extra, bool trusted_daemon)
{
std::vector<size_t> unused_transfers_indices;
std::vector<size_t> unused_dust_indices;
uint64_t accumulated_fee, accumulated_outputs, accumulated_change;
struct TX {
std::list<transfer_container::iterator> selected_transfers;
std::vector<cryptonote::tx_destination_entry> dsts;
cryptonote::transaction tx;
pending_tx ptx;
size_t bytes;
};
std::vector<TX> txes;
uint64_t needed_fee, available_for_fee = 0;
uint64_t upper_transaction_size_limit = get_upper_tranaction_size_limit();
// gather all our dust and non dust outputs
for (size_t i = 0; i < m_transfers.size(); ++i)
{
const transfer_details& td = m_transfers[i];
if (!td.m_spent && is_transfer_unlocked(td))
{
if (is_valid_decomposed_amount(td.amount()))
unused_transfers_indices.push_back(i);
else
unused_dust_indices.push_back(i);
}
}
LOG_PRINT_L2("Starting with " << unused_transfers_indices.size() << " non-dust outputs and " << unused_dust_indices.size() << " dust outputs");
// start with an empty tx
txes.push_back(TX());
accumulated_fee = 0;
accumulated_outputs = 0;
accumulated_change = 0;
needed_fee = 0;
// while we have something to send
while (!unused_dust_indices.empty() || !unused_transfers_indices.empty()) {
TX &tx = txes.back();
// get a random unspent output and use it to pay next chunk. We try to alternate
// dust and non dust to ensure we never get with only dust, from which we might
// get a tx that can't pay for itself
size_t idx = unused_transfers_indices.empty() ? pop_random_value(unused_dust_indices) : unused_dust_indices.empty() ? pop_random_value(unused_transfers_indices) : ((tx.selected_transfers.size() & 1) || accumulated_outputs > FEE_PER_KB * (upper_transaction_size_limit + 1023) / 1024) ? pop_random_value(unused_dust_indices) : pop_random_value(unused_transfers_indices);
const transfer_details &td = m_transfers[idx];
LOG_PRINT_L2("Picking output " << idx << ", amount " << print_money(td.amount()));
// add this output to the list to spend
tx.selected_transfers.push_back(m_transfers.begin() + idx);
uint64_t available_amount = td.amount();
accumulated_outputs += available_amount;
// here, check if we need to sent tx and start a new one
LOG_PRINT_L2("Considering whether to create a tx now, " << tx.selected_transfers.size() << " inputs, tx limit "
<< upper_transaction_size_limit);
bool try_tx = (unused_dust_indices.empty() && unused_transfers_indices.empty()) || (tx.selected_transfers.size() * (fake_outs_count+1) * APPROXIMATE_INPUT_BYTES >= TX_SIZE_TARGET(upper_transaction_size_limit));
if (try_tx) {
cryptonote::transaction test_tx;
pending_tx test_ptx;
needed_fee = 0;
tx.dsts.push_back(tx_destination_entry(1, address));
LOG_PRINT_L2("Trying to create a tx now, with " << tx.dsts.size() << " destinations and " <<
tx.selected_transfers.size() << " outputs");
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, unlock_time, needed_fee, extra,
detail::digit_split_strategy, tx_dust_policy(::config::DEFAULT_DUST_THRESHOLD), test_tx, test_ptx);
auto txBlob = t_serializable_object_to_blob(test_ptx.tx);
needed_fee = calculate_fee(txBlob);
available_for_fee = test_ptx.fee + test_ptx.dests[0].amount + test_ptx.change_dts.amount;
LOG_PRINT_L2("Made a " << txBlob.size() << " kB tx, with " << print_money(available_for_fee) << " available for fee (" <<
print_money(needed_fee) << " needed)");
THROW_WALLET_EXCEPTION_IF(needed_fee > available_for_fee, error::wallet_internal_error, "Transaction cannot pay for itself");
do {
LOG_PRINT_L2("We made a tx, adjusting fee and saving it");
tx.dsts[0].amount = available_for_fee - needed_fee;
transfer_selected(tx.dsts, tx.selected_transfers, fake_outs_count, unlock_time, needed_fee, extra,
detail::digit_split_strategy, tx_dust_policy(::config::DEFAULT_DUST_THRESHOLD), test_tx, test_ptx);
txBlob = t_serializable_object_to_blob(test_ptx.tx);
needed_fee = calculate_fee(txBlob);
LOG_PRINT_L2("Made an attempt at a final " << ((txBlob.size() + 1023)/1024) << " kB tx, with " << print_money(test_ptx.fee) <<
" fee and " << print_money(test_ptx.change_dts.amount) << " change");
} while (needed_fee > test_ptx.fee);
LOG_PRINT_L2("Made a final " << ((txBlob.size() + 1023)/1024) << " kB tx, with " << print_money(test_ptx.fee) <<
" fee and " << print_money(test_ptx.change_dts.amount) << " change");
tx.tx = test_tx;
tx.ptx = test_ptx;
tx.bytes = txBlob.size();
accumulated_fee += test_ptx.fee;
accumulated_change += test_ptx.change_dts.amount;
if (!unused_transfers_indices.empty() || !unused_dust_indices.empty())
{
LOG_PRINT_L2("We have more to pay, starting another tx");
txes.push_back(TX());
}
}
}
LOG_PRINT_L1("Done creating " << txes.size() << " transactions, " << print_money(accumulated_fee) <<
" total fee, " << print_money(accumulated_change) << " total change");
std::vector<wallet2::pending_tx> ptx_vector;
for (std::vector<TX>::iterator i = txes.begin(); i != txes.end(); ++i)
{
TX &tx = *i;
uint64_t tx_money = 0;
for (std::list<transfer_container::iterator>::const_iterator mi = tx.selected_transfers.begin(); mi != tx.selected_transfers.end(); ++mi)
tx_money += (*mi)->amount();
LOG_PRINT_L1(" Transaction " << (1+std::distance(txes.begin(), i)) << "/" << txes.size() <<
": " << (tx.bytes+1023)/1024 << " kB, sending " << print_money(tx_money) << " in " << tx.selected_transfers.size() <<
" outputs to " << tx.dsts.size() << " destination(s), including " <<
print_money(tx.ptx.fee) << " fee, " << print_money(tx.ptx.change_dts.amount) << " change");
ptx_vector.push_back(tx.ptx);
}
// if we made it this far, we're OK to actually send the transactions
return ptx_vector;
}
uint64_t wallet2::unlocked_dust_balance(const tx_dust_policy &dust_policy) const
{
uint64_t money = 0;