monero/tests/unit_tests/epee_boosted_tcp_server.cpp

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// Copyright (c) 2014-2016, The Monero Project
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//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#include <condition_variable>
#include <chrono>
#include <mutex>
#include <thread>
#include "gtest/gtest.h"
#include "include_base_utils.h"
#include "string_tools.h"
#include "net/abstract_tcp_server2.h"
namespace
{
const uint32_t test_server_port = 5626;
const std::string test_server_host("127.0.0.1");
struct test_connection_context : public epee::net_utils::connection_context_base
{
};
struct test_protocol_handler_config
{
};
struct test_protocol_handler
{
typedef test_connection_context connection_context;
typedef test_protocol_handler_config config_type;
test_protocol_handler(epee::net_utils::i_service_endpoint* /*psnd_hndlr*/, config_type& /*config*/, connection_context& /*conn_context*/)
{
}
void after_init_connection()
{
}
void handle_qued_callback()
{
}
bool release_protocol()
{
return true;
}
bool handle_recv(const void* /*data*/, size_t /*size*/)
{
return false;
}
};
typedef epee::net_utils::boosted_tcp_server<test_protocol_handler> test_tcp_server;
}
TEST(boosted_tcp_server, worker_threads_are_exception_resistant)
{
test_tcp_server srv(epee::net_utils::e_connection_type_RPC); // RPC disables network limit for unit tests
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ASSERT_TRUE(srv.init_server(test_server_port, test_server_host));
std::mutex mtx;
std::condition_variable cond;
int counter = 0;
auto counter_incrementer = [&counter, &cond, &mtx]()
{
std::unique_lock<std::mutex> lock(mtx);
++counter;
if (4 <= counter)
{
cond.notify_one();
}
};
// 2 theads, but 4 exceptions
ASSERT_TRUE(srv.run_server(2, false));
ASSERT_TRUE(srv.async_call([&counter_incrementer]() { counter_incrementer(); throw tools::runtime_error("test 1"); }));
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ASSERT_TRUE(srv.async_call([&counter_incrementer]() { counter_incrementer(); throw std::string("test 2"); }));
ASSERT_TRUE(srv.async_call([&counter_incrementer]() { counter_incrementer(); throw "test 3"; }));
ASSERT_TRUE(srv.async_call([&counter_incrementer]() { counter_incrementer(); throw 4; }));
{
std::unique_lock<std::mutex> lock(mtx);
ASSERT_NE(std::cv_status::timeout, cond.wait_for(lock, std::chrono::seconds(5)));
ASSERT_EQ(4, counter);
}
// Check if threads are alive
counter = 0;
//auto counter_incrementer = [&counter]() { counter.fetch_add(1); epee::misc_utils::sleep_no_w(counter.load() * 10); };
ASSERT_TRUE(srv.async_call(counter_incrementer));
ASSERT_TRUE(srv.async_call(counter_incrementer));
ASSERT_TRUE(srv.async_call(counter_incrementer));
ASSERT_TRUE(srv.async_call(counter_incrementer));
{
std::unique_lock<std::mutex> lock(mtx);
ASSERT_NE(std::cv_status::timeout, cond.wait_for(lock, std::chrono::seconds(5)));
ASSERT_EQ(4, counter);
}
srv.send_stop_signal();
ASSERT_TRUE(srv.timed_wait_server_stop(5 * 1000));
ASSERT_TRUE(srv.deinit_server());
}