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wallet2: request transactions in slices when scanning for known rings

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This avoid massive memory consumption for huge wallets
This commit is contained in:
moneromooo-monero 2018-04-04 11:40:31 +01:00
parent 25fe67e4cf
commit 73951cbd39
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GPG Key ID: 686F07454D6CEFC3
1 changed files with 32 additions and 22 deletions
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24
src/wallet/wallet2.cpp
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@ -5564,19 +5564,30 @@ bool wallet2::find_and_save_rings(bool force)
MDEBUG("Finding and saving rings..."); MDEBUG("Finding and saving rings...");
// get payments we made // get payments we made
std::vector<crypto::hash> txs_hashes;
std::list<std::pair<crypto::hash,wallet2::confirmed_transfer_details>> payments; std::list<std::pair<crypto::hash,wallet2::confirmed_transfer_details>> payments;
get_payments_out(payments, 0, std::numeric_limits<uint64_t>::max(), boost::none, std::set<uint32_t>()); get_payments_out(payments, 0, std::numeric_limits<uint64_t>::max(), boost::none, std::set<uint32_t>());
for (const std::pair<crypto::hash,wallet2::confirmed_transfer_details> &entry: payments) for (const std::pair<crypto::hash,wallet2::confirmed_transfer_details> &entry: payments)
{ {
const crypto::hash &txid = entry.first; const crypto::hash &txid = entry.first;
req.txs_hashes.push_back(epee::string_tools::pod_to_hex(txid)); txs_hashes.push_back(txid);
} }
MDEBUG("Found " << std::to_string(req.txs_hashes.size()) << " transactions"); MDEBUG("Found " << std::to_string(txs_hashes.size()) << " transactions");
crypto::chacha_key key;
generate_chacha_key_from_secret_keys(key);
// get those transactions from the daemon // get those transactions from the daemon
static const size_t SLICE_SIZE = 200;
for (size_t slice = 0; slice < txs_hashes.size(); slice += SLICE_SIZE)
{
req.decode_as_json = false; req.decode_as_json = false;
req.prune = true; req.prune = true;
req.txs_hashes.clear();
size_t ntxes = slice + SLICE_SIZE > txs_hashes.size() ? txs_hashes.size() - slice : SLICE_SIZE;
for (size_t s = slice; s < slice + ntxes; ++s)
req.txs_hashes.push_back(epee::string_tools::pod_to_hex(txs_hashes[s]));
bool r; bool r;
{ {
const boost::lock_guard<boost::mutex> lock{m_daemon_rpc_mutex}; const boost::lock_guard<boost::mutex> lock{m_daemon_rpc_mutex};
@ -5590,14 +5601,12 @@ bool wallet2::find_and_save_rings(bool force)
std::to_string(res.txs.size()) + ", expected " + std::to_string(req.txs_hashes.size())); std::to_string(res.txs.size()) + ", expected " + std::to_string(req.txs_hashes.size()));
MDEBUG("Scanning " << res.txs.size() << " transactions"); MDEBUG("Scanning " << res.txs.size() << " transactions");
THROW_WALLET_EXCEPTION_IF(slice + res.txs.size() > txs_hashes.size(), error::wallet_internal_error, "Unexpected tx array size");
crypto::chacha_key key;
generate_chacha_key_from_secret_keys(key);
auto it = req.txs_hashes.begin(); auto it = req.txs_hashes.begin();
for (size_t i = 0; i < res.txs.size(); ++i, ++it) for (size_t i = 0; i < res.txs.size(); ++i, ++it)
{ {
const auto &tx_info = res.txs[i]; const auto &tx_info = res.txs[i];
THROW_WALLET_EXCEPTION_IF(tx_info.tx_hash != epee::string_tools::pod_to_hex(txs_hashes[slice + i]), error::wallet_internal_error, "Wrong txid received");
THROW_WALLET_EXCEPTION_IF(tx_info.tx_hash != *it, error::wallet_internal_error, "Wrong txid received"); THROW_WALLET_EXCEPTION_IF(tx_info.tx_hash != *it, error::wallet_internal_error, "Wrong txid received");
cryptonote::blobdata bd; cryptonote::blobdata bd;
THROW_WALLET_EXCEPTION_IF(!epee::string_tools::parse_hexstr_to_binbuff(tx_info.as_hex, bd), error::wallet_internal_error, "failed to parse tx from hexstr"); THROW_WALLET_EXCEPTION_IF(!epee::string_tools::parse_hexstr_to_binbuff(tx_info.as_hex, bd), error::wallet_internal_error, "failed to parse tx from hexstr");
@ -5607,8 +5616,9 @@ bool wallet2::find_and_save_rings(bool force)
THROW_WALLET_EXCEPTION_IF(epee::string_tools::pod_to_hex(tx_hash) != tx_info.tx_hash, error::wallet_internal_error, "txid mismatch"); THROW_WALLET_EXCEPTION_IF(epee::string_tools::pod_to_hex(tx_hash) != tx_info.tx_hash, error::wallet_internal_error, "txid mismatch");
THROW_WALLET_EXCEPTION_IF(!add_rings(key, tx), error::wallet_internal_error, "Failed to save ring"); THROW_WALLET_EXCEPTION_IF(!add_rings(key, tx), error::wallet_internal_error, "Failed to save ring");
} }
}
MINFO("Found and saved rings for " << res.txs.size() << " transactions"); MINFO("Found and saved rings for " << txs_hashes.size() << " transactions");
m_ring_history_saved = true; m_ring_history_saved = true;
return true; return true;
} }