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Wrapper for RPC worker tasks (#2692)
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* Wrapper for RPC worker tasks

* Pass the rpc ptr by const ref (Wes review)
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@guilhermelawless
guilhermelawless committed Mar 31, 2020
1 parent 33874b6 commit f9845f0
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Showing 4 changed files with 80 additions and 56 deletions.
4 changes: 2 additions & 2 deletions nano/nano_node/entry.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -973,8 +973,8 @@ int main (int argc, char * const * argv)
auto inactive_node_l = nano::default_inactive_node (data_path, vm);
nano::node_rpc_config config;
nano::ipc::ipc_server server (*inactive_node_l->node, config);
nano::json_handler handler_l (*inactive_node_l->node, config, command_l.str (), response_handler_l);
handler_l.process_request ();
auto handler_l (std::make_shared<nano::json_handler> (*inactive_node_l->node, config, command_l.str (), response_handler_l));
handler_l->process_request ();
}
else if (vm.count ("debug_validate_blocks"))
{
Expand Down
108 changes: 54 additions & 54 deletions nano/node/json_handler.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,24 @@ node_rpc_config (node_rpc_config_a)
{
}

std::function<void()> nano::json_handler::create_worker_task (std::function<void(std::shared_ptr<nano::json_handler> const &)> const & action_a)
{
return [rpc_l = shared_from_this (), action_a]() {
try
{
action_a (rpc_l);
}
catch (std::runtime_error const &)
{
json_error_response (rpc_l->response, "Unable to parse JSON");
}
catch (...)
{
json_error_response (rpc_l->response, "Internal server error in RPC");
}
};
}

void nano::json_handler::process_request (bool unsafe_a)
{
try
Expand Down Expand Up @@ -487,8 +505,7 @@ void nano::json_handler::account_block_count ()

void nano::json_handler::account_create ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
if (!rpc_l->ec)
{
Expand Down Expand Up @@ -525,7 +542,7 @@ void nano::json_handler::account_create ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::account_get ()
Expand Down Expand Up @@ -620,8 +637,7 @@ void nano::json_handler::account_list ()

void nano::json_handler::account_move ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
if (!rpc_l->ec)
{
Expand Down Expand Up @@ -655,13 +671,12 @@ void nano::json_handler::account_move ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::account_remove ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
auto account (rpc_l->account_impl ());
if (!rpc_l->ec)
Expand All @@ -676,7 +691,7 @@ void nano::json_handler::account_remove ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::account_representative ()
Expand All @@ -696,8 +711,7 @@ void nano::json_handler::account_representative ()

void nano::json_handler::account_representative_set ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l, work_generation_enabled = node.work_generation_enabled ()]() {
node.worker.push_task (create_worker_task ([work_generation_enabled = node.work_generation_enabled ()](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
auto account (rpc_l->account_impl ());
std::string representative_text (rpc_l->request.get<std::string> ("representative"));
Expand Down Expand Up @@ -758,7 +772,7 @@ void nano::json_handler::account_representative_set ()
{
rpc_l->response_errors ();
}
});
}));
}

void nano::json_handler::account_weight ()
Expand Down Expand Up @@ -793,8 +807,7 @@ void nano::json_handler::accounts_balances ()

void nano::json_handler::accounts_create ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
auto count (rpc_l->count_impl ());
if (!rpc_l->ec)
Expand All @@ -814,7 +827,7 @@ void nano::json_handler::accounts_create ()
rpc_l->response_l.add_child ("accounts", accounts);
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::accounts_frontiers ()
Expand Down Expand Up @@ -2829,8 +2842,7 @@ void nano::json_handler::node_id_delete ()

void nano::json_handler::password_change ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
if (!rpc_l->ec)
{
Expand All @@ -2848,13 +2860,12 @@ void nano::json_handler::password_change ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::password_enter ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
if (!rpc_l->ec)
{
Expand All @@ -2864,7 +2875,7 @@ void nano::json_handler::password_enter ()
rpc_l->response_l.put ("valid", error ? "0" : "1");
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::password_valid (bool wallet_locked)
Expand Down Expand Up @@ -3027,8 +3038,7 @@ void nano::json_handler::pending_exists ()

void nano::json_handler::payment_begin ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
std::string id_text (rpc_l->request.get<std::string> ("wallet"));
nano::wallet_id id;
if (!id.decode_hex (id_text))
Expand Down Expand Up @@ -3094,13 +3104,12 @@ void nano::json_handler::payment_begin ()
rpc_l->ec = nano::error_common::bad_wallet_number;
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::payment_init ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
if (!rpc_l->ec)
{
Expand All @@ -3117,7 +3126,7 @@ void nano::json_handler::payment_init ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::payment_end ()
Expand Down Expand Up @@ -3176,8 +3185,7 @@ void nano::json_handler::payment_wait ()

void nano::json_handler::process ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
const bool json_block_l = rpc_l->request.get<bool> ("json_block", false);
const bool watch_work_l = rpc_l->request.get<bool> ("watch_work", true);
std::shared_ptr<nano::block> block;
Expand Down Expand Up @@ -3343,7 +3351,7 @@ void nano::json_handler::process ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::receive ()
Expand Down Expand Up @@ -4125,14 +4133,13 @@ void nano::json_handler::unchecked ()

void nano::json_handler::unchecked_clear ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto transaction (rpc_l->node.store.tx_begin_write ({ tables::unchecked }));
rpc_l->node.store.unchecked_clear (transaction);
rpc_l->node.ledger.cache.unchecked_count = 0;
rpc_l->response_l.put ("success", "");
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::unchecked_get ()
Expand Down Expand Up @@ -4306,8 +4313,7 @@ void nano::json_handler::validate_account_number ()

void nano::json_handler::wallet_add ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
if (!rpc_l->ec)
{
Expand All @@ -4332,13 +4338,12 @@ void nano::json_handler::wallet_add ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::wallet_add_watch ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
if (!rpc_l->ec)
{
Expand Down Expand Up @@ -4367,7 +4372,7 @@ void nano::json_handler::wallet_add_watch ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::wallet_info ()
Expand Down Expand Up @@ -4438,8 +4443,7 @@ void nano::json_handler::wallet_balances ()

void nano::json_handler::wallet_change_seed ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
if (!rpc_l->ec)
{
Expand Down Expand Up @@ -4469,7 +4473,7 @@ void nano::json_handler::wallet_change_seed ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::wallet_contains ()
Expand All @@ -4487,8 +4491,7 @@ void nano::json_handler::wallet_contains ()

void nano::json_handler::wallet_create ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
nano::raw_key seed;
auto seed_text (rpc_l->request.get_optional<std::string> ("seed"));
if (seed_text.is_initialized () && seed.data.decode_hex (seed_text.get ()))
Expand Down Expand Up @@ -4519,13 +4522,12 @@ void nano::json_handler::wallet_create ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::wallet_destroy ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
std::string wallet_text (rpc_l->request.get<std::string> ("wallet"));
nano::wallet_id wallet;
if (!wallet.decode_hex (wallet_text))
Expand All @@ -4547,7 +4549,7 @@ void nano::json_handler::wallet_destroy ()
rpc_l->ec = nano::error_common::bad_wallet_number;
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::wallet_export ()
Expand Down Expand Up @@ -4808,8 +4810,7 @@ void nano::json_handler::wallet_representative ()

void nano::json_handler::wallet_representative_set ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
std::string representative_text (rpc_l->request.get<std::string> ("representative"));
auto representative (rpc_l->account_impl (representative_text, nano::error_rpc::bad_representative_number));
Expand Down Expand Up @@ -4856,7 +4857,7 @@ void nano::json_handler::wallet_representative_set ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::wallet_republish ()
Expand Down Expand Up @@ -5053,8 +5054,7 @@ void nano::json_handler::work_get ()

void nano::json_handler::work_set ()
{
auto rpc_l (shared_from_this ());
node.worker.push_task ([rpc_l]() {
node.worker.push_task (create_worker_task ([](std::shared_ptr<nano::json_handler> const & rpc_l) {
auto wallet (rpc_l->wallet_impl ());
auto account (rpc_l->account_impl ());
auto work (rpc_l->work_optional_impl ());
Expand All @@ -5069,7 +5069,7 @@ void nano::json_handler::work_set ()
}
}
rpc_l->response_errors ();
});
}));
}

void nano::json_handler::work_validate ()
Expand Down
1 change: 1 addition & 0 deletions nano/node/json_handler.hpp
View file
Original file line number Diff line number Diff line change
Expand Up @@ -167,6 +167,7 @@ class json_handler : public std::enable_shared_from_this<nano::json_handler>
bool enable_sign_hash{ false };
std::function<void()> stop_callback;
nano::node_rpc_config const & node_rpc_config;
std::function<void()> create_worker_task (std::function<void(std::shared_ptr<nano::json_handler> const &)> const &);
};

class inprocess_rpc_handler final : public nano::rpc_handler_interface
Expand Down
23 changes: 23 additions & 0 deletions nano/rpc_test/rpc.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -154,6 +154,29 @@ class scoped_io_thread_name_change
};
}

TEST (rpc, wrapped_task)
{
nano::system system;
auto & node = *add_ipc_enabled_node (system);
nano::node_rpc_config node_rpc_config;
std::atomic<bool> response (false);
auto response_handler_l ([&response](std::string const & response_a) {
std::stringstream istream (response_a);
boost::property_tree::ptree json_l;
ASSERT_NO_THROW (boost::property_tree::read_json (istream, json_l));
ASSERT_EQ (1, json_l.count ("error"));
ASSERT_EQ ("Unable to parse JSON", json_l.get<std::string> ("error"));
response = true;
});
auto handler_l (std::make_shared<nano::json_handler> (node, node_rpc_config, "", response_handler_l));
auto task (handler_l->create_worker_task ([](std::shared_ptr<nano::json_handler>) {
// Exception should get caught
throw std::runtime_error ("");
}));
system.nodes[0]->worker.push_task (task);
ASSERT_TIMELY (5s, response == true);
}

TEST (rpc, account_balance)
{
nano::system system;
Expand Down

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