memgraph/tests/concurrent/network_read_hang.cpp
Matej Ferencevic 7939b04117 Removed unused template parameter from network stack.
Reviewers: mislav.bradac, buda

Reviewed By: buda

Subscribers: pullbot

Differential Revision: https://phabricator.memgraph.io/D632
2017-08-04 11:12:08 +02:00

120 lines
3.0 KiB
C++

#ifndef NDEBUG
#define NDEBUG
#endif
#include <array>
#include <cassert>
#include <chrono>
#include <cstring>
#include <iostream>
#include <thread>
#include <vector>
#include <glog/logging.h>
#include <gtest/gtest.h>
#include "communication/bolt/v1/decoder/buffer.hpp"
#include "communication/server.hpp"
#include "io/network/epoll.hpp"
#include "io/network/socket.hpp"
static constexpr const char interface[] = "127.0.0.1";
using endpoint_t = io::network::NetworkEndpoint;
using socket_t = io::network::Socket;
class TestData {};
class TestSession {
public:
TestSession(socket_t &&socket, TestData &data)
: socket_(std::move(socket)) {
event_.data.ptr = this;
}
bool Alive() { return socket_.IsOpen(); }
int Id() const { return socket_.id(); }
void Execute() { this->socket_.Write(buffer_.data(), buffer_.size()); }
io::network::StreamBuffer Allocate() { return buffer_.Allocate(); }
void Written(size_t len) { buffer_.Written(len); }
void Close() { this->socket_.Close(); }
socket_t socket_;
communication::bolt::Buffer<> buffer_;
io::network::Epoll::Event event_;
};
using test_server_t = communication::Server<TestSession, socket_t, TestData>;
test_server_t *serverptr;
std::atomic<bool> run{true};
void client_run(int num, const char *interface, const char *port) {
endpoint_t endpoint(interface, port);
socket_t socket;
uint8_t data = 0x00;
ASSERT_TRUE(socket.Connect(endpoint));
ASSERT_TRUE(socket.SetTimeout(1, 0));
// set socket timeout to 1s
ASSERT_TRUE(socket.Write((uint8_t *)"\xAA", 1));
ASSERT_TRUE(socket.Read(&data, 1));
fprintf(stderr, "CLIENT %d READ 0x%02X!\n", num, data);
ASSERT_EQ(data, 0xAA);
while (run) std::this_thread::sleep_for(std::chrono::milliseconds(100));
socket.Close();
}
void server_run(void *serverptr, int num) {
((test_server_t *)serverptr)->Start(num);
}
TEST(Network, SocketReadHangOnConcurrentConnections) {
// initialize listen socket
endpoint_t endpoint(interface, "0");
socket_t socket;
ASSERT_TRUE(socket.Bind(endpoint));
ASSERT_TRUE(socket.SetNonBlocking());
ASSERT_TRUE(socket.Listen(1024));
// get bound address
auto ep = socket.endpoint();
printf("ADDRESS: %s, PORT: %d\n", ep.address(), ep.port());
// initialize server
TestData data;
test_server_t server(std::move(socket), data);
serverptr = &server;
// start server
int N = (std::thread::hardware_concurrency() + 1) / 2;
int Nc = N * 3;
std::thread server_thread(server_run, serverptr, N);
// start clients
std::vector<std::thread> clients;
for (int i = 0; i < Nc; ++i)
clients.push_back(std::thread(client_run, i, interface, ep.port_str()));
// wait for 2s and stop clients
std::this_thread::sleep_for(std::chrono::seconds(2));
run = false;
// cleanup clients
for (int i = 0; i < Nc; ++i) clients[i].join();
// stop server
server.Shutdown();
server_thread.join();
}
int main(int argc, char **argv) {
google::InitGoogleLogging(argv[0]);
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}