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wallet: fix corner case of no recent outputs available

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moneromooo-monero 2016-11-09 13:59:11 +00:00
parent 38727f7d2f
commit 63772e4048
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GPG key ID: 686F07454D6CEFC3
1 changed files with 9 additions and 6 deletions
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15
src/wallet/wallet2.cpp
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@ -2972,9 +2972,9 @@ void wallet2::get_outs(std::vector<std::vector<entry>> &outs, const std::list<si
break;
}
}
LOG_PRINT_L1("" << num_outs << " outputs of size " << print_money(amount));
LOG_PRINT_L1("" << num_outs << " unlocked outputs of size " << print_money(amount));
THROW_WALLET_EXCEPTION_IF(num_outs == 0, error::wallet_internal_error,
"histogram reports no outputs for " + boost::lexical_cast<std::string>(amount) + ", not even ours");
"histogram reports no unlocked outputs for " + boost::lexical_cast<std::string>(amount) + ", not even ours");
THROW_WALLET_EXCEPTION_IF(num_recent_outs > num_outs, error::wallet_internal_error,
"histogram reports more recent outs than outs for " + boost::lexical_cast<std::string>(amount));
@ -2984,7 +2984,7 @@ void wallet2::get_outs(std::vector<std::vector<entry>> &outs, const std::list<si
recent_outputs_count = 1; // ensure we have at least one, if possible
if (recent_outputs_count > num_recent_outs)
recent_outputs_count = num_recent_outs;
if (td.m_global_output_index >= num_outs - num_recent_outs)
if (td.m_global_output_index >= num_outs - num_recent_outs && recent_outputs_count > 0)
--recent_outputs_count; // if the real out is recent, pick one less recent fake out
LOG_PRINT_L1("Using " << recent_outputs_count << " recent outputs");
@ -3023,6 +3023,9 @@ void wallet2::get_outs(std::vector<std::vector<entry>> &outs, const std::list<si
uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53);
double frac = std::sqrt((double)r / ((uint64_t)1 << 53));
i = (uint64_t)(frac*num_recent_outs) + num_outs - num_recent_outs;
// just in case rounding up to 1 occurs after calc
if (i == num_outs)
--i;
LOG_PRINT_L2("picking " << i << " as recent");
}
else
@ -3031,11 +3034,11 @@ void wallet2::get_outs(std::vector<std::vector<entry>> &outs, const std::list<si
uint64_t r = crypto::rand<uint64_t>() % ((uint64_t)1 << 53);
double frac = std::sqrt((double)r / ((uint64_t)1 << 53));
i = (uint64_t)(frac*num_outs);
// just in case rounding up to 1 occurs after calc
if (i == num_outs)
--i;
LOG_PRINT_L2("picking " << i << " as triangular");
}
// just in case rounding up to 1 occurs after calc
if (i == num_outs)
--i;
if (seen_indices.count(i))
continue;