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wallet2: force using output distribution for ringct outs #8433

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merged 1 commit into from
Jul 15, 2022
Merged

wallet2: force using output distribution for ringct outs #8433

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23 changes: 14 additions & 9 deletions src/wallet/wallet2.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -8049,8 +8049,13 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>
has_rct = true;
max_rct_index = std::max(max_rct_index, m_transfers[idx].m_global_output_index);
}
const bool has_rct_distribution = has_rct && (!rct_offsets.empty() || get_rct_distribution(rct_start_height, rct_offsets));
if (has_rct_distribution)

if (has_rct && rct_offsets.empty()) {
THROW_WALLET_EXCEPTION_IF(!get_rct_distribution(rct_start_height, rct_offsets),
error::get_output_distribution, "Could not obtain output distribution.");
}

if (has_rct)
{
// check we're clear enough of rct start, to avoid corner cases below
THROW_WALLET_EXCEPTION_IF(rct_offsets.size() <= CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE,
Expand All @@ -8062,11 +8067,11 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>
// get histogram for the amounts we need
cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::request req_t = AUTO_VAL_INIT(req_t);
cryptonote::COMMAND_RPC_GET_OUTPUT_HISTOGRAM::response resp_t = AUTO_VAL_INIT(resp_t);
// request histogram for all outputs, except 0 if we have the rct distribution
// request histogram for all pre-rct outputs
req_t.amounts.reserve(selected_transfers.size());
for(size_t idx: selected_transfers)
if (!m_transfers[idx].is_rct() || !has_rct_distribution)
req_t.amounts.push_back(m_transfers[idx].is_rct() ? 0 : m_transfers[idx].amount());
if (!m_transfers[idx].is_rct())
req_t.amounts.push_back(m_transfers[idx].amount());
if (!req_t.amounts.empty())
{
std::sort(req_t.amounts.begin(), req_t.amounts.end());
Expand Down Expand Up @@ -8166,7 +8171,7 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>
COMMAND_RPC_GET_OUTPUTS_BIN::response daemon_resp = AUTO_VAL_INIT(daemon_resp);

std::unique_ptr<gamma_picker> gamma;
if (has_rct_distribution)
if (has_rct)
gamma.reset(new gamma_picker(rct_offsets));

size_t num_selected_transfers = 0;
Expand All @@ -8181,7 +8186,7 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>
// request more for rct in base recent (locked) coinbases are picked, since they're locked for longer
size_t requested_outputs_count = base_requested_outputs_count + (td.is_rct() ? CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW - CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE : 0);
size_t start = req.outputs.size();
bool use_histogram = amount != 0 || !has_rct_distribution;
bool use_histogram = amount != 0;

const bool output_is_pre_fork = td.m_block_height < segregation_fork_height;
uint64_t num_outs = 0, num_recent_outs = 0;
Expand Down Expand Up @@ -8368,7 +8373,7 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>

uint64_t i;
const char *type = "";
if (amount == 0 && has_rct_distribution)
if (amount == 0)
{
THROW_WALLET_EXCEPTION_IF(!gamma, error::wallet_internal_error, "No gamma picker");
// gamma distribution
Expand Down Expand Up @@ -8530,7 +8535,7 @@ void wallet2::get_outs(std::vector<std::vector<tools::wallet2::get_outs_entry>>
break;
}
}
bool use_histogram = amount != 0 || !has_rct_distribution;
bool use_histogram = amount != 0;
if (!use_histogram)
num_outs = rct_offsets[rct_offsets.size() - CRYPTONOTE_DEFAULT_TX_SPENDABLE_AGE];

Expand Down