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add RPC to get a histogram of outputs of a given amount

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This commit is contained in:
moneromooo-monero
2018-02-19 11:15:15 +00:00
parent 51bb7fafac
commit 41f727ce42
14 changed files with 284 additions and 8 deletions
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46
src/cryptonote_core/blockchain.cpp
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@@ -1903,6 +1903,45 @@ void Blockchain::get_output_key_mask_unlocked(const uint64_t& amount, const uint
unlocked = is_tx_spendtime_unlocked(m_db->get_tx_unlock_time(toi.first));
}
//------------------------------------------------------------------
bool Blockchain::get_output_distribution(uint64_t amount, uint64_t from_height, uint64_t &start_height, std::vector<uint64_t> &distribution, uint64_t &base) const
{
// rct outputs don't exist before v3
if (amount == 0)
{
switch (m_nettype)
{
case STAGENET: start_height = stagenet_hard_forks[2].height; break;
case TESTNET: start_height = testnet_hard_forks[2].height; break;
case MAINNET: start_height = mainnet_hard_forks[2].height; break;
default: return false;
}
}
else
start_height = 0;
base = 0;
const uint64_t real_start_height = start_height;
if (from_height > start_height)
start_height = from_height;
distribution.clear();
uint64_t db_height = m_db->height();
if (start_height >= db_height)
return false;
distribution.resize(db_height - start_height, 0);
bool r = for_all_outputs(amount, [&](uint64_t height) {
CHECK_AND_ASSERT_MES(height >= real_start_height && height <= db_height, false, "Height not in expected range");
if (height >= start_height)
distribution[height - start_height]++;
else
base++;
return true;
});
if (!r)
return false;
return true;
}
//------------------------------------------------------------------
// This function takes a list of block hashes from another node
// on the network to find where the split point is between us and them.
// This is used to see what to send another node that needs to sync.
@@ -4441,11 +4480,16 @@ bool Blockchain::for_all_transactions(std::function<bool(const crypto::hash&, co
return m_db->for_all_transactions(f);
}
bool Blockchain::for_all_outputs(std::function<bool(uint64_t amount, const crypto::hash &tx_hash, size_t tx_idx)> f) const
bool Blockchain::for_all_outputs(std::function<bool(uint64_t amount, const crypto::hash &tx_hash, uint64_t height, size_t tx_idx)> f) const
{
return m_db->for_all_outputs(f);;
}
bool Blockchain::for_all_outputs(uint64_t amount, std::function<bool(uint64_t height)> f) const
{
return m_db->for_all_outputs(amount, f);;
}
namespace cryptonote {
template bool Blockchain::get_transactions(const std::vector<crypto::hash>&, std::list<transaction>&, std::list<crypto::hash>&) const;
}