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Revert "Make RPC server functions that read db thread safe" #8384

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Jul 3, 2022
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Revert "Make RPC server functions that read db thread safe" #8384

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50 changes: 14 additions & 36 deletions src/rpc/core_rpc_server.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -492,7 +492,6 @@ namespace cryptonote
}

CHECK_PAYMENT_MIN1(req, res, COST_PER_GET_INFO, false);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());

const bool restricted = m_restricted && ctx;

Expand Down Expand Up @@ -598,7 +597,6 @@ namespace cryptonote
}

CHECK_PAYMENT(req, res, 1);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());

// quick check for noop
if (!req.block_ids.empty())
Expand All @@ -609,7 +607,7 @@ namespace cryptonote
if (last_block_hash == req.block_ids.front())
{
res.start_height = 0;
res.current_height = last_block_height + 1;
res.current_height = m_core.get_current_blockchain_height();
res.status = CORE_RPC_STATUS_OK;
return true;
}
Expand Down Expand Up @@ -730,7 +728,6 @@ namespace cryptonote
res.blocks.clear();
res.blocks.reserve(req.heights.size());
CHECK_PAYMENT_MIN1(req, res, req.heights.size() * COST_PER_BLOCK, false);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());
for (uint64_t height : req.heights)
{
block blk;
Expand Down Expand Up @@ -1592,7 +1589,6 @@ namespace cryptonote
return r;

CHECK_PAYMENT(req, res, 1);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());

const bool restricted = m_restricted && ctx;
const bool request_has_rpc_origin = ctx != NULL;
Expand All @@ -1617,7 +1613,6 @@ namespace cryptonote
return r;

CHECK_PAYMENT(req, res, 1);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());

const bool restricted = m_restricted && ctx;
const bool request_has_rpc_origin = ctx != NULL;
Expand Down Expand Up @@ -1720,14 +1715,11 @@ namespace cryptonote
error_resp.message = "Wrong parameters, expected height";
return false;
}
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());
uint64_t h = req[0];
uint64_t blockchain_height = m_core.get_current_blockchain_height();
if(blockchain_height <= h)
if(m_core.get_current_blockchain_height() <= h)
{
error_resp.code = CORE_RPC_ERROR_CODE_TOO_BIG_HEIGHT;
error_resp.message = std::string("Requested block height: ") + std::to_string(h) + " greater than current top block height: " + std::to_string(blockchain_height - 1);
return false;
error_resp.message = std::string("Requested block height: ") + std::to_string(h) + " greater than current top block height: " + std::to_string(m_core.get_current_blockchain_height() - 1);
}
res = string_tools::pod_to_hex(m_core.get_block_id_by_height(h));
return true;
Expand Down Expand Up @@ -1877,7 +1869,6 @@ namespace cryptonote
return false;
}
}
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());
crypto::hash seed_hash, next_seed_hash;
if (!get_block_template(info.address, req.prev_block.empty() ? NULL : &prev_block, blob_reserve, reserved_offset, wdiff, res.height, res.expected_reward, b, res.seed_height, seed_hash, next_seed_hash, error_resp))
return false;
Expand Down Expand Up @@ -2351,7 +2342,6 @@ namespace cryptonote

CHECK_CORE_READY();
CHECK_PAYMENT_MIN1(req, res, COST_PER_BLOCK_HEADER, false);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());
uint64_t last_block_height;
crypto::hash last_block_hash;
m_core.get_blockchain_top(last_block_height, last_block_hash);
Expand Down Expand Up @@ -2392,8 +2382,6 @@ namespace cryptonote
return false;
}

db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());

auto get = [this](const std::string &hash, bool fill_pow_hash, block_header_response &block_header, bool restricted, epee::json_rpc::error& error_resp) -> bool {
crypto::hash block_hash;
bool hash_parsed = parse_hash256(hash, block_hash);
Expand Down Expand Up @@ -2453,6 +2441,13 @@ namespace cryptonote
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_BLOCK_HEADERS_RANGE>(invoke_http_mode::JON_RPC, "getblockheadersrange", req, res, r))
return r;

const uint64_t bc_height = m_core.get_current_blockchain_height();
if (req.start_height >= bc_height || req.end_height >= bc_height || req.start_height > req.end_height)
{
error_resp.code = CORE_RPC_ERROR_CODE_TOO_BIG_HEIGHT;
error_resp.message = "Invalid start/end heights.";
return false;
}
const bool restricted = m_restricted && ctx;
if (restricted && req.end_height - req.start_height > RESTRICTED_BLOCK_HEADER_RANGE)
{
Expand All @@ -2462,16 +2457,6 @@ namespace cryptonote
}

CHECK_PAYMENT_MIN1(req, res, (req.end_height - req.start_height + 1) * COST_PER_BLOCK_HEADER, false);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());

const uint64_t bc_height = m_core.get_current_blockchain_height();
if (req.start_height >= bc_height || req.end_height >= bc_height || req.start_height > req.end_height)
{
error_resp.code = CORE_RPC_ERROR_CODE_TOO_BIG_HEIGHT;
error_resp.message = "Invalid start/end heights.";
return false;
}

for (uint64_t h = req.start_height; h <= req.end_height; ++h)
{
crypto::hash block_hash = m_core.get_block_id_by_height(h);
Expand Down Expand Up @@ -2516,12 +2501,10 @@ namespace cryptonote
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_BLOCK_HEADER_BY_HEIGHT>(invoke_http_mode::JON_RPC, "getblockheaderbyheight", req, res, r))
return r;

db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());
uint64_t blockchain_height = m_core.get_current_blockchain_height();
if(blockchain_height <= req.height)
if(m_core.get_current_blockchain_height() <= req.height)
{
error_resp.code = CORE_RPC_ERROR_CODE_TOO_BIG_HEIGHT;
error_resp.message = std::string("Requested block height: ") + std::to_string(req.height) + " greater than current top block height: " + std::to_string(blockchain_height - 1);
error_resp.message = std::string("Requested block height: ") + std::to_string(req.height) + " greater than current top block height: " + std::to_string(m_core.get_current_blockchain_height() - 1);
return false;
}
CHECK_PAYMENT_MIN1(req, res, COST_PER_BLOCK_HEADER, false);
Expand Down Expand Up @@ -2554,7 +2537,6 @@ namespace cryptonote
return r;

CHECK_PAYMENT_MIN1(req, res, COST_PER_BLOCK, false);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());

crypto::hash block_hash;
if (!req.hash.empty())
Expand All @@ -2569,11 +2551,10 @@ namespace cryptonote
}
else
{
uint64_t blockchain_height = m_core.get_current_blockchain_height();
if(blockchain_height <= req.height)
if(m_core.get_current_blockchain_height() <= req.height)
{
error_resp.code = CORE_RPC_ERROR_CODE_TOO_BIG_HEIGHT;
error_resp.message = std::string("Requested block height: ") + std::to_string(req.height) + " greater than current top block height: " + std::to_string(blockchain_height - 1);
error_resp.message = std::string("Requested block height: ") + std::to_string(req.height) + " greater than current top block height: " + std::to_string(m_core.get_current_blockchain_height() - 1);
return false;
}
block_hash = m_core.get_block_id_by_height(req.height);
Expand Down Expand Up @@ -2881,7 +2862,6 @@ namespace cryptonote
bool core_rpc_server::on_get_coinbase_tx_sum(const COMMAND_RPC_GET_COINBASE_TX_SUM::request& req, COMMAND_RPC_GET_COINBASE_TX_SUM::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx)
{
RPC_TRACKER(get_coinbase_tx_sum);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());
const uint64_t bc_height = m_core.get_current_blockchain_height();
if (req.height >= bc_height || req.count > bc_height)
{
Expand Down Expand Up @@ -2923,7 +2903,6 @@ namespace cryptonote
bool core_rpc_server::on_get_alternate_chains(const COMMAND_RPC_GET_ALTERNATE_CHAINS::request& req, COMMAND_RPC_GET_ALTERNATE_CHAINS::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx)
{
RPC_TRACKER(get_alternate_chains);
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());
try
{
std::vector<std::pair<Blockchain::block_extended_info, std::vector<crypto::hash>>> chains = m_core.get_blockchain_storage().get_alternative_chains();
Expand Down Expand Up @@ -3226,7 +3205,6 @@ namespace cryptonote
bool r;
if (use_bootstrap_daemon_if_necessary<COMMAND_RPC_GET_TRANSACTION_POOL_BACKLOG>(invoke_http_mode::JON_RPC, "get_txpool_backlog", req, res, r))
return r;
db_rtxn_guard rtxn_guard(&m_core.get_blockchain_storage().get_db());
size_t n_txes = m_core.get_pool_transactions_count();
CHECK_PAYMENT_MIN1(req, res, COST_PER_TX_POOL_STATS * n_txes, false);

Expand Down