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node_server: add race condition demo

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pull/434/head
anon 3 years ago committed by wowario
parent d008f54cdd
commit 3cdf6d6616
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1 changed files with 259 additions and 0 deletions
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tests/unit_tests/node_server.cpp
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@ -35,6 +35,7 @@
#include "cryptonote_core/i_core_events.h"
#include "cryptonote_protocol/cryptonote_protocol_handler.h"
#include "cryptonote_protocol/cryptonote_protocol_handler.inl"
#include <condition_variable>
#define MAKE_IPV4_ADDRESS(a,b,c,d) epee::net_utils::ipv4_network_address{MAKE_IP(a,b,c,d),0}
#define MAKE_IPV4_ADDRESS_PORT(a,b,c,d,e) epee::net_utils::ipv4_network_address{MAKE_IP(a,b,c,d),e}
@ -914,5 +915,263 @@ TEST(cryptonote_protocol_handler, race_condition)
remove_tree(dir);
}
TEST(node_server, race_condition)
{
struct contexts {
using cryptonote = cryptonote::cryptonote_connection_context;
using p2p = nodetool::p2p_connection_context_t<cryptonote>;
};
using context_t = contexts::cryptonote;
using options_t = boost::program_options::variables_map;
using options_description_t = boost::program_options::options_description;
using worker_t = std::thread;
struct protocol_t {
private:
using p2p_endpoint_t = nodetool::i_p2p_endpoint<context_t>;
using lock_t = std::mutex;
using condition_t = std::condition_variable_any;
using unique_lock_t = std::unique_lock<lock_t>;
p2p_endpoint_t *p2p_endpoint;
lock_t lock;
condition_t condition;
bool started{};
size_t counter{};
public:
using payload_t = cryptonote::CORE_SYNC_DATA;
using blob_t = cryptonote::blobdata;
using connection_context = context_t;
using payload_type = payload_t;
using relay_t = cryptonote::relay_method;
using string_t = std::string;
using span_t = epee::span<const uint8_t>;
using blobs_t = epee::span<const cryptonote::blobdata>;
using connections_t = std::list<cryptonote::connection_info>;
using block_queue_t = cryptonote::block_queue;
using stripes_t = std::pair<uint32_t, uint32_t>;
struct core_events_t: cryptonote::i_core_events {
uint64_t get_current_blockchain_height() const override { return {}; }
bool is_synchronized() const override { return {}; }
void on_transactions_relayed(blobs_t blobs, relay_t relay) override {}
};
int handle_invoke_map(bool is_notify, int command, const span_t in, string_t &out, context_t &context, bool &handled) {
return {};
}
bool on_idle() {
if (not p2p_endpoint)
return {};
{
unique_lock_t guard(lock);
if (not started)
started = true;
else
return {};
}
std::vector<blob_t> txs(128 / 64 * 1024 * 1024, blob_t(1, 'x'));
worker_t worker([this]{
p2p_endpoint->for_each_connection(
[this](context_t &, uint64_t, uint32_t){
{
unique_lock_t guard(lock);
++counter;
condition.notify_all();
condition.wait(guard, [this]{ return counter >= 3; });
}
std::this_thread::sleep_for(std::chrono::milliseconds(8));
return false;
}
);
});
{
unique_lock_t guard(lock);
++counter;
condition.notify_all();
condition.wait(guard, [this]{ return counter >= 3; });
++counter;
condition.notify_all();
condition.wait(guard, [this]{ return counter >= 5; });
}
p2p_endpoint->send_txs(
std::move(txs),
epee::net_utils::zone::public_,
{},
relay_t::fluff
);
worker.join();
return {};
}
bool init(const options_t &options) { return {}; }
bool deinit() { return {}; }
void set_p2p_endpoint(p2p_endpoint_t *p2p_endpoint) {
this->p2p_endpoint = p2p_endpoint;
}
bool process_payload_sync_data(const payload_t &payload, contexts::p2p &context, bool is_inital) {
context.m_state = context_t::state_normal;
context.m_needed_objects.resize(512 * 1024);
{
unique_lock_t guard(lock);
++counter;
condition.notify_all();
condition.wait(guard, [this]{ return counter >= 3; });
++counter;
condition.notify_all();
condition.wait(guard, [this]{ return counter >= 5; });
}
return true;
}
bool get_payload_sync_data(blob_t &blob) { return {}; }
bool get_payload_sync_data(payload_t &payload) { return {}; }
bool on_callback(context_t &context) { return {}; }
core_events_t &get_core(){ static core_events_t core_events; return core_events;}
void log_connections() {}
connections_t get_connections() { return {}; }
const block_queue_t &get_block_queue() const {
static block_queue_t block_queue;
return block_queue;
}
void stop() {}
void on_connection_close(context_t &context) {}
void set_max_out_peers(unsigned int max) {}
bool no_sync() const { return {}; }
void set_no_sync(bool value) {}
string_t get_peers_overview() const { return {}; }
stripes_t get_next_needed_pruning_stripe() const { return {}; }
bool needs_new_sync_connections() const { return {}; }
bool is_busy_syncing() { return {}; }
};
using node_server_t = nodetool::node_server<protocol_t>;
auto conduct_test = [](protocol_t &protocol){
struct messages {
struct core {
using sync = cryptonote::CORE_SYNC_DATA;
};
using handshake = nodetool::COMMAND_HANDSHAKE_T<core::sync>;
};
using handler_t = epee::levin::async_protocol_handler<context_t>;
using connection_t = epee::net_utils::connection<handler_t>;
using connection_ptr = boost::shared_ptr<connection_t>;
using shared_state_t = typename connection_t::shared_state;
using shared_state_ptr = std::shared_ptr<shared_state_t>;
using io_context_t = boost::asio::io_service;
using work_t = boost::asio::io_service::work;
using work_ptr = std::shared_ptr<work_t>;
using workers_t = std::vector<std::thread>;
using endpoint_t = boost::asio::ip::tcp::endpoint;
using event_t = epee::simple_event;
struct command_handler_t: epee::levin::levin_commands_handler<context_t> {
using span_t = epee::span<const uint8_t>;
using string_t = std::string;
int invoke(int, const span_t, string_t &, context_t &) override { return {}; }
int notify(int, const span_t, context_t &) override { return {}; }
void callback(context_t &) override {}
void on_connection_new(context_t &) override {}
void on_connection_close(context_t &) override {}
~command_handler_t() override {}
static void destroy(epee::levin::levin_commands_handler<context_t>* ptr) { delete ptr; }
};
io_context_t io_context;
work_ptr work = std::make_shared<work_t>(io_context);
workers_t workers;
while (workers.size() < 4) {
workers.emplace_back([&io_context]{
io_context.run();
});
}
io_context.post([&]{
protocol.on_idle();
});
io_context.post([&]{
protocol.on_idle();
});
shared_state_ptr shared_state = std::make_shared<shared_state_t>();
shared_state->set_handler(new command_handler_t, &command_handler_t::destroy);
connection_ptr conn{new connection_t(io_context, shared_state, {}, {})};
endpoint_t endpoint(boost::asio::ip::address::from_string("127.0.0.1"), 48080);
conn->socket().connect(endpoint);
conn->socket().set_option(boost::asio::ip::tcp::socket::reuse_address(true));
conn->start({}, {});
context_t context;
conn->get_context(context);
event_t handshaked;
typename messages::handshake::request_t msg{{
::config::NETWORK_ID,
58080,
}};
epee::net_utils::async_invoke_remote_command2<typename messages::handshake::response>(
context,
messages::handshake::ID,
msg,
*shared_state,
[conn, &handshaked](int code, const typename messages::handshake::response &msg, context_t &context){
EXPECT_TRUE(code >= 0);
handshaked.raise();
},
P2P_DEFAULT_HANDSHAKE_INVOKE_TIMEOUT
);
handshaked.wait();
conn->strand_.post([conn]{
conn->cancel();
});
conn.reset();
work.reset();
for (auto& w: workers) {
w.join();
}
};
using path_t = boost::filesystem::path;
using ec_t = boost::system::error_code;
auto create_dir = []{
ec_t ec;
path_t path = boost::filesystem::temp_directory_path() / boost::filesystem::unique_path("daemon-%%%%%%%%%%%%%%%%", ec);
if (ec)
return path_t{};
auto success = boost::filesystem::create_directory(path, ec);
if (not ec && success)
return path;
return path_t{};
};
auto remove_tree = [](const path_t &path){
ec_t ec;
boost::filesystem::remove_all(path, ec);
};
const auto dir = create_dir();
ASSERT_TRUE(not dir.empty());
protocol_t protocol{};
node_server_t node_server(protocol);
protocol.set_p2p_endpoint(&node_server);
node_server.init(
[&dir]{
options_t options;
boost::program_options::store(
boost::program_options::command_line_parser({
"--p2p-bind-ip=127.0.0.1",
"--p2p-bind-port=48080",
"--out-peers=0",
"--data-dir",
dir.string(),
"--no-igd",
"--add-exclusive-node=127.0.0.1:48080",
"--check-updates=disabled",
"--disable-dns-checkpoints",
}).options([]{
options_description_t options_description{};
cryptonote::core::init_options(options_description);
node_server_t::init_options(options_description);
return options_description;
}()).run(),
options
);
return options;
}()
);
worker_t worker([&]{
node_server.run();
});
conduct_test(protocol);
node_server.send_stop_signal();
worker.join();
node_server.deinit();
remove_tree(dir);
}
namespace nodetool { template class node_server<cryptonote::t_cryptonote_protocol_handler<test_core>>; }
namespace cryptonote { template class t_cryptonote_protocol_handler<test_core>; }

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