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-rw-r--r--src/rpc/core_rpc_server.cpp29
-rw-r--r--src/rpc/core_rpc_server_commands_defs.h4
-rw-r--r--src/simplewallet/simplewallet.cpp14
-rw-r--r--src/simplewallet/simplewallet.h8
-rw-r--r--src/wallet/wallet2.cpp98
-rw-r--r--src/wallet/wallet2.h14
6 files changed, 105 insertions, 62 deletions
diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index 71f9534cb..b56725515 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -151,6 +151,23 @@ namespace cryptonote
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
+ static cryptonote::blobdata get_pruned_tx_blob(const cryptonote::blobdata &blobdata)
+ {
+ cryptonote::transaction tx;
+
+ if (!cryptonote::parse_and_validate_tx_from_blob(blobdata, tx))
+ {
+ MERROR("Failed to parse and validate tx from blob");
+ return blobdata;
+ }
+
+ std::stringstream ss;
+ binary_archive<true> ba(ss);
+ bool r = tx.serialize_base(ba);
+ CHECK_AND_ASSERT_MES(r, blobdata, "Failed to serialize rct signatures base");
+ return ss.str();
+ }
+ //------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_get_blocks(const COMMAND_RPC_GET_BLOCKS_FAST::request& req, COMMAND_RPC_GET_BLOCKS_FAST::response& res)
{
CHECK_CORE_BUSY();
@@ -162,10 +179,13 @@ namespace cryptonote
return false;
}
+ size_t pruned_size = 0, unpruned_size = 0, ntxes = 0;
for(auto& bd: bs)
{
res.blocks.resize(res.blocks.size()+1);
res.blocks.back().block = bd.first;
+ pruned_size += bd.first.size();
+ unpruned_size += bd.first.size();
res.output_indices.push_back(COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices());
res.output_indices.back().indices.push_back(COMMAND_RPC_GET_BLOCKS_FAST::tx_output_indices());
block b;
@@ -181,9 +201,15 @@ namespace cryptonote
return false;
}
size_t txidx = 0;
+ ntxes += bd.second.size();
for(const auto& t: bd.second)
{
- res.blocks.back().txs.push_back(t);
+ if (req.prune)
+ res.blocks.back().txs.push_back(get_pruned_tx_blob(t));
+ else
+ res.blocks.back().txs.push_back(t);
+ pruned_size += res.blocks.back().txs.back().size();
+ unpruned_size += t.size();
res.output_indices.back().indices.push_back(COMMAND_RPC_GET_BLOCKS_FAST::tx_output_indices());
bool r = m_core.get_tx_outputs_gindexs(b.tx_hashes[txidx++], res.output_indices.back().indices.back().indices);
if (!r)
@@ -194,6 +220,7 @@ namespace cryptonote
}
}
+ MDEBUG("on_get_blocks: " << bs.size() << " blocks, " << ntxes << " txes, pruned size " << pruned_size << ", unpruned size " << unpruned_size);
res.status = CORE_RPC_STATUS_OK;
return true;
}
diff --git a/src/rpc/core_rpc_server_commands_defs.h b/src/rpc/core_rpc_server_commands_defs.h
index 9f15da82a..d84dab0ba 100644
--- a/src/rpc/core_rpc_server_commands_defs.h
+++ b/src/rpc/core_rpc_server_commands_defs.h
@@ -49,7 +49,7 @@ namespace cryptonote
// advance which version they will stop working with
// Don't go over 32767 for any of these
#define CORE_RPC_VERSION_MAJOR 1
-#define CORE_RPC_VERSION_MINOR 6
+#define CORE_RPC_VERSION_MINOR 7
#define MAKE_CORE_RPC_VERSION(major,minor) (((major)<<16)|(minor))
#define CORE_RPC_VERSION MAKE_CORE_RPC_VERSION(CORE_RPC_VERSION_MAJOR, CORE_RPC_VERSION_MINOR)
@@ -80,9 +80,11 @@ namespace cryptonote
{
std::list<crypto::hash> block_ids; //*first 10 blocks id goes sequential, next goes in pow(2,n) offset, like 2, 4, 8, 16, 32, 64 and so on, and the last one is always genesis block */
uint64_t start_height;
+ bool prune;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE_CONTAINER_POD_AS_BLOB(block_ids)
KV_SERIALIZE(start_height)
+ KV_SERIALIZE(prune)
END_KV_SERIALIZE_MAP()
};
diff --git a/src/simplewallet/simplewallet.cpp b/src/simplewallet/simplewallet.cpp
index 77681ada0..af40f4153 100644
--- a/src/simplewallet/simplewallet.cpp
+++ b/src/simplewallet/simplewallet.cpp
@@ -1638,11 +1638,11 @@ void simple_wallet::on_new_block(uint64_t height, const cryptonote::block& block
m_refresh_progress_reporter.update(height, false);
}
//----------------------------------------------------------------------------------------------------
-void simple_wallet::on_money_received(uint64_t height, const cryptonote::transaction& tx, uint64_t amount)
+void simple_wallet::on_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount)
{
message_writer(console_color_green, false) << "\r" <<
tr("Height ") << height << ", " <<
- tr("transaction ") << get_transaction_hash(tx) << ", " <<
+ tr("transaction ") << txid << ", " <<
tr("received ") << print_money(amount);
if (m_auto_refresh_refreshing)
m_cmd_binder.print_prompt();
@@ -1650,16 +1650,16 @@ void simple_wallet::on_money_received(uint64_t height, const cryptonote::transac
m_refresh_progress_reporter.update(height, true);
}
//----------------------------------------------------------------------------------------------------
-void simple_wallet::on_unconfirmed_money_received(uint64_t height, const cryptonote::transaction& tx, uint64_t amount)
+void simple_wallet::on_unconfirmed_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount)
{
// Not implemented in CLI wallet
}
//----------------------------------------------------------------------------------------------------
-void simple_wallet::on_money_spent(uint64_t height, const cryptonote::transaction& in_tx, uint64_t amount, const cryptonote::transaction& spend_tx)
+void simple_wallet::on_money_spent(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& in_tx, uint64_t amount, const cryptonote::transaction& spend_tx)
{
message_writer(console_color_magenta, false) << "\r" <<
tr("Height ") << height << ", " <<
- tr("transaction ") << get_transaction_hash(spend_tx) << ", " <<
+ tr("transaction ") << txid << ", " <<
tr("spent ") << print_money(amount);
if (m_auto_refresh_refreshing)
m_cmd_binder.print_prompt();
@@ -1667,11 +1667,11 @@ void simple_wallet::on_money_spent(uint64_t height, const cryptonote::transactio
m_refresh_progress_reporter.update(height, true);
}
//----------------------------------------------------------------------------------------------------
-void simple_wallet::on_skip_transaction(uint64_t height, const cryptonote::transaction& tx)
+void simple_wallet::on_skip_transaction(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx)
{
message_writer(console_color_red, true) << "\r" <<
tr("Height ") << height << ", " <<
- tr("transaction ") << get_transaction_hash(tx) << ", " <<
+ tr("transaction ") << txid << ", " <<
tr("unsupported transaction format");
if (m_auto_refresh_refreshing)
m_cmd_binder.print_prompt();
diff --git a/src/simplewallet/simplewallet.h b/src/simplewallet/simplewallet.h
index cd99757ab..2616cfd07 100644
--- a/src/simplewallet/simplewallet.h
+++ b/src/simplewallet/simplewallet.h
@@ -190,10 +190,10 @@ namespace cryptonote
//----------------- i_wallet2_callback ---------------------
virtual void on_new_block(uint64_t height, const cryptonote::block& block);
- virtual void on_money_received(uint64_t height, const cryptonote::transaction& tx, uint64_t amount);
- virtual void on_unconfirmed_money_received(uint64_t height, const cryptonote::transaction& tx, uint64_t amount);
- virtual void on_money_spent(uint64_t height, const cryptonote::transaction& in_tx, uint64_t amount, const cryptonote::transaction& spend_tx);
- virtual void on_skip_transaction(uint64_t height, const cryptonote::transaction& tx);
+ virtual void on_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount);
+ virtual void on_unconfirmed_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount);
+ virtual void on_money_spent(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& in_tx, uint64_t amount, const cryptonote::transaction& spend_tx);
+ virtual void on_skip_transaction(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx);
//----------------------------------------------------------
friend class refresh_progress_reporter_t;
diff --git a/src/wallet/wallet2.cpp b/src/wallet/wallet2.cpp
index 14369da3f..095a321da 100644
--- a/src/wallet/wallet2.cpp
+++ b/src/wallet/wallet2.cpp
@@ -633,28 +633,13 @@ bool wallet2::wallet_generate_key_image_helper(const cryptonote::account_keys& a
return true;
}
//----------------------------------------------------------------------------------------------------
-void wallet2::process_new_transaction(const cryptonote::transaction& tx, const std::vector<uint64_t> &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool)
+void wallet2::process_new_transaction(const crypto::hash &txid, const cryptonote::transaction& tx, const std::vector<uint64_t> &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool)
{
- class lazy_txid_getter
- {
- const cryptonote::transaction &tx;
- crypto::hash lazy_txid;
- bool computed;
- public:
- lazy_txid_getter(const transaction &tx): tx(tx), computed(false) {}
- const crypto::hash &operator()()
- {
- if (!computed)
- {
- lazy_txid = cryptonote::get_transaction_hash(tx);
- computed = true;
- }
- return lazy_txid;
- }
- } txid(tx);
+ // In this function, tx (probably) only contains the base information
+ // (that is, the prunable stuff may or may not be included)
if (!miner_tx)
- process_unconfirmed(tx, height);
+ process_unconfirmed(txid, tx, height);
std::vector<size_t> outs;
uint64_t tx_money_got_in_outs = 0;
crypto::public_key tx_pub_key = null_pkey;
@@ -663,7 +648,7 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
if(!parse_tx_extra(tx.extra, tx_extra_fields))
{
// Extra may only be partially parsed, it's OK if tx_extra_fields contains public key
- LOG_PRINT_L0("Transaction extra has unsupported format: " << txid());
+ LOG_PRINT_L0("Transaction extra has unsupported format: " << txid);
}
// Don't try to extract tx public key if tx has no ouputs
@@ -677,9 +662,9 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
{
if (pk_index > 1)
break;
- LOG_PRINT_L0("Public key wasn't found in the transaction extra. Skipping transaction " << txid());
+ LOG_PRINT_L0("Public key wasn't found in the transaction extra. Skipping transaction " << txid);
if(0 != m_callback)
- m_callback->on_skip_transaction(height, tx);
+ m_callback->on_skip_transaction(height, txid, tx);
return;
}
@@ -879,7 +864,7 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
td.m_internal_output_index = o;
td.m_global_output_index = o_indices[o];
td.m_tx = (const cryptonote::transaction_prefix&)tx;
- td.m_txid = txid();
+ td.m_txid = txid;
td.m_key_image = ki[o];
td.m_key_image_known = !m_watch_only;
td.m_amount = tx.vout[o].amount;
@@ -903,9 +888,9 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
set_unspent(m_transfers.size()-1);
m_key_images[td.m_key_image] = m_transfers.size()-1;
m_pub_keys[in_ephemeral[o].pub] = m_transfers.size()-1;
- LOG_PRINT_L0("Received money: " << print_money(td.amount()) << ", with tx: " << txid());
+ LOG_PRINT_L0("Received money: " << print_money(td.amount()) << ", with tx: " << txid);
if (0 != m_callback)
- m_callback->on_money_received(height, tx, td.m_amount);
+ m_callback->on_money_received(height, txid, tx, td.m_amount);
}
}
else if (m_transfers[kit->second].m_spent || m_transfers[kit->second].amount() >= tx.vout[o].amount)
@@ -930,7 +915,7 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
td.m_internal_output_index = o;
td.m_global_output_index = o_indices[o];
td.m_tx = (const cryptonote::transaction_prefix&)tx;
- td.m_txid = txid();
+ td.m_txid = txid;
td.m_amount = tx.vout[o].amount;
td.m_pk_index = pk_index - 1;
if (td.m_amount == 0)
@@ -952,9 +937,9 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
THROW_WALLET_EXCEPTION_IF(td.get_public_key() != in_ephemeral[o].pub, error::wallet_internal_error, "Inconsistent public keys");
THROW_WALLET_EXCEPTION_IF(td.m_spent, error::wallet_internal_error, "Inconsistent spent status");
- LOG_PRINT_L0("Received money: " << print_money(td.amount()) << ", with tx: " << txid());
+ LOG_PRINT_L0("Received money: " << print_money(td.amount()) << ", with tx: " << txid);
if (0 != m_callback)
- m_callback->on_money_received(height, tx, td.m_amount);
+ m_callback->on_money_received(height, txid, tx, td.m_amount);
}
}
}
@@ -982,17 +967,17 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
tx_money_spent_in_ins += amount;
if (!pool)
{
- LOG_PRINT_L0("Spent money: " << print_money(amount) << ", with tx: " << txid());
+ LOG_PRINT_L0("Spent money: " << print_money(amount) << ", with tx: " << txid);
set_spent(it->second, height);
if (0 != m_callback)
- m_callback->on_money_spent(height, tx, amount, tx);
+ m_callback->on_money_spent(height, txid, tx, amount, tx);
}
}
}
if (tx_money_spent_in_ins > 0)
{
- process_outgoing(tx, height, ts, tx_money_spent_in_ins, tx_money_got_in_outs);
+ process_outgoing(txid, tx, height, ts, tx_money_spent_in_ins, tx_money_got_in_outs);
}
uint64_t received = (tx_money_spent_in_ins < tx_money_got_in_outs) ? tx_money_got_in_outs - tx_money_spent_in_ins : 0;
@@ -1038,7 +1023,7 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
}
payment_details payment;
- payment.m_tx_hash = txid();
+ payment.m_tx_hash = txid;
payment.m_amount = received;
payment.m_block_height = height;
payment.m_unlock_time = tx.unlock_time;
@@ -1046,7 +1031,7 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
if (pool) {
m_unconfirmed_payments.emplace(payment_id, payment);
if (0 != m_callback)
- m_callback->on_unconfirmed_money_received(height, tx, payment.m_amount);
+ m_callback->on_unconfirmed_money_received(height, txid, tx, payment.m_amount);
}
else
m_payments.emplace(payment_id, payment);
@@ -1054,12 +1039,11 @@ void wallet2::process_new_transaction(const cryptonote::transaction& tx, const s
}
}
//----------------------------------------------------------------------------------------------------
-void wallet2::process_unconfirmed(const cryptonote::transaction& tx, uint64_t height)
+void wallet2::process_unconfirmed(const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t height)
{
if (m_unconfirmed_txs.empty())
return;
- crypto::hash txid = get_transaction_hash(tx);
auto unconf_it = m_unconfirmed_txs.find(txid);
if(unconf_it != m_unconfirmed_txs.end()) {
if (store_tx_info()) {
@@ -1075,9 +1059,8 @@ void wallet2::process_unconfirmed(const cryptonote::transaction& tx, uint64_t he
}
}
//----------------------------------------------------------------------------------------------------
-void wallet2::process_outgoing(const cryptonote::transaction &tx, uint64_t height, uint64_t ts, uint64_t spent, uint64_t received)
+void wallet2::process_outgoing(const crypto::hash &txid, const cryptonote::transaction &tx, uint64_t height, uint64_t ts, uint64_t spent, uint64_t received)
{
- crypto::hash txid = get_transaction_hash(tx);
std::pair<std::unordered_map<crypto::hash, confirmed_transfer_details>::iterator, bool> entry = m_confirmed_txs.insert(std::make_pair(txid, confirmed_transfer_details()));
// fill with the info we know, some info might already be there
if (entry.second)
@@ -1120,16 +1103,19 @@ void wallet2::process_new_blockchain_entry(const cryptonote::block& b, const cry
if(b.timestamp + 60*60*24 > m_account.get_createtime() && height >= m_refresh_from_block_height)
{
TIME_MEASURE_START(miner_tx_handle_time);
- process_new_transaction(b.miner_tx, o_indices.indices[txidx++].indices, height, b.timestamp, true, false);
+ process_new_transaction(get_transaction_hash(b.miner_tx), b.miner_tx, o_indices.indices[txidx++].indices, height, b.timestamp, true, false);
TIME_MEASURE_FINISH(miner_tx_handle_time);
TIME_MEASURE_START(txs_handle_time);
- for(auto& txblob: bche.txs)
+ THROW_WALLET_EXCEPTION_IF(bche.txs.size() != b.tx_hashes.size(), error::wallet_internal_error, "Wrong amount of transactions for block");
+ size_t idx = 0;
+ for (const auto& txblob: bche.txs)
{
cryptonote::transaction tx;
- bool r = parse_and_validate_tx_from_blob(txblob, tx);
+ bool r = parse_and_validate_tx_base_from_blob(txblob, tx);
THROW_WALLET_EXCEPTION_IF(!r, error::tx_parse_error, txblob);
- process_new_transaction(tx, o_indices.indices[txidx++].indices, height, b.timestamp, false, false);
+ process_new_transaction(b.tx_hashes[idx], tx, o_indices.indices[txidx++].indices, height, b.timestamp, false, false);
+ ++idx;
}
TIME_MEASURE_FINISH(txs_handle_time);
LOG_PRINT_L2("Processed block: " << bl_id << ", height " << height << ", " << miner_tx_handle_time + txs_handle_time << "(" << miner_tx_handle_time << "/" << txs_handle_time <<")ms");
@@ -1185,6 +1171,34 @@ void wallet2::pull_blocks(uint64_t start_height, uint64_t &blocks_start_height,
cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::response res = AUTO_VAL_INIT(res);
req.block_ids = short_chain_history;
+ uint32_t rpc_version;
+ boost::optional<std::string> result = m_node_rpc_proxy.get_rpc_version(rpc_version);
+ // no error
+ if (!!result)
+ {
+ // empty string -> not connection
+ THROW_WALLET_EXCEPTION_IF(result->empty(), tools::error::no_connection_to_daemon, "getversion");
+ THROW_WALLET_EXCEPTION_IF(*result == CORE_RPC_STATUS_BUSY, tools::error::daemon_busy, "getversion");
+ if (*result != CORE_RPC_STATUS_OK)
+ {
+ MDEBUG("Cannot determined daemon RPC version, not asking for pruned blocks");
+ req.prune = false; // old daemon
+ }
+ }
+ else
+ {
+ if (rpc_version >= MAKE_CORE_RPC_VERSION(1, 7))
+ {
+ MDEBUG("Daemon is recent enough, asking for pruned blocks");
+ req.prune = true;
+ }
+ else
+ {
+ MDEBUG("Daemon is too old, not asking for pruned blocks");
+ req.prune = false;
+ }
+ }
+
req.start_height = start_height;
m_daemon_rpc_mutex.lock();
bool r = net_utils::invoke_http_bin("/getblocks.bin", req, res, m_http_client, rpc_timeout);
@@ -1497,7 +1511,7 @@ void wallet2::update_pool_state()
{
if (tx_hash == txid)
{
- process_new_transaction(tx, std::vector<uint64_t>(), 0, time(NULL), false, true);
+ process_new_transaction(txid, tx, std::vector<uint64_t>(), 0, time(NULL), false, true);
}
else
{
diff --git a/src/wallet/wallet2.h b/src/wallet/wallet2.h
index 701a0e0b7..67bd93a82 100644
--- a/src/wallet/wallet2.h
+++ b/src/wallet/wallet2.h
@@ -70,10 +70,10 @@ namespace tools
{
public:
virtual void on_new_block(uint64_t height, const cryptonote::block& block) {}
- virtual void on_money_received(uint64_t height, const cryptonote::transaction& tx, uint64_t amount) {}
- virtual void on_unconfirmed_money_received(uint64_t height, const cryptonote::transaction& tx, uint64_t amount) {}
- virtual void on_money_spent(uint64_t height, const cryptonote::transaction& in_tx, uint64_t amount, const cryptonote::transaction& spend_tx) {}
- virtual void on_skip_transaction(uint64_t height, const cryptonote::transaction& tx) {}
+ virtual void on_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount) {}
+ virtual void on_unconfirmed_money_received(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t amount) {}
+ virtual void on_money_spent(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& in_tx, uint64_t amount, const cryptonote::transaction& spend_tx) {}
+ virtual void on_skip_transaction(uint64_t height, const crypto::hash &txid, const cryptonote::transaction& tx) {}
virtual ~i_wallet2_callback() {}
};
@@ -585,7 +585,7 @@ namespace tools
* \param password Password of wallet file
*/
bool load_keys(const std::string& keys_file_name, const std::string& password);
- void process_new_transaction(const cryptonote::transaction& tx, const std::vector<uint64_t> &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool);
+ void process_new_transaction(const crypto::hash &txid, const cryptonote::transaction& tx, const std::vector<uint64_t> &o_indices, uint64_t height, uint64_t ts, bool miner_tx, bool pool);
void process_new_blockchain_entry(const cryptonote::block& b, const cryptonote::block_complete_entry& bche, const crypto::hash& bl_id, uint64_t height, const cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices &o_indices);
void detach_blockchain(uint64_t height);
void get_short_chain_history(std::list<crypto::hash>& ids) const;
@@ -598,8 +598,8 @@ namespace tools
void process_blocks(uint64_t start_height, const std::list<cryptonote::block_complete_entry> &blocks, const std::vector<cryptonote::COMMAND_RPC_GET_BLOCKS_FAST::block_output_indices> &o_indices, uint64_t& blocks_added);
uint64_t select_transfers(uint64_t needed_money, std::vector<size_t> unused_transfers_indices, std::list<size_t>& selected_transfers, bool trusted_daemon);
bool prepare_file_names(const std::string& file_path);
- void process_unconfirmed(const cryptonote::transaction& tx, uint64_t height);
- void process_outgoing(const cryptonote::transaction& tx, uint64_t height, uint64_t ts, uint64_t spent, uint64_t received);
+ void process_unconfirmed(const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t height);
+ void process_outgoing(const crypto::hash &txid, const cryptonote::transaction& tx, uint64_t height, uint64_t ts, uint64_t spent, uint64_t received);
void add_unconfirmed_tx(const cryptonote::transaction& tx, uint64_t amount_in, const std::vector<cryptonote::tx_destination_entry> &dests, const crypto::hash &payment_id, uint64_t change_amount);
void generate_genesis(cryptonote::block& b);
void check_genesis(const crypto::hash& genesis_hash) const; //throws