namespace po = boost::program_options;
int main(int argc, char * argv[])
{
	FLAGS_logtostderr = true;
	FLAGS_colorlogtostderr = true;
	google::InitGoogleLogging(argv[0]);

	int c_port_no, w_port_no;

	po::options_description desc("Allowed options");
	desc.add_options()
		("help,h", "produce help message.")
		("clients-port,cp", po::value<int>(&c_port_no)->default_value(1025), "The port to listen clients on. Must be greater than 1024. Default is 1025.")
		("worlds-port,wp", po::value<int>(&w_port_no)->default_value(1026), "The port to listen worlds on. Must be greater than 1024. Default is 1026.")
	;

	po::variables_map vm;
	try {
		po::store(po::parse_command_line(argc, argv, desc), vm);
	} catch (boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<po::unknown_option> > e) {
		std::cout << "Unknown parameters" << std::endl;
		std::cout << desc << std::endl;
		return 1;
	} catch (...) {
		std::cout << desc << std::endl;
		return 1;
	}
	po::notify(vm);

	if (vm.count("help")) {
		std::cout << desc << std::endl;
		return 1;
	}

	if (c_port_no <= 1024 || w_port_no <= 1024) {
		std::stringstream str;
		str << desc;
		fprintf(stderr, " bad port number: %i\n usage: %s [options]\n%s\n", c_port_no <= 1024 ? c_port_no : w_port_no, argv[0], str.str().c_str());
		return 1;
	}

	ev::default_loop loop;
	// Запускаем сервер
	Server::instance().start(c_port_no, w_port_no);
	// Запускаем цикл ожидания сигналов от сокетов и системы
	loop.run(0);
	// Останавливаем сервер и завершаем приложение
	Server::instance().stop();
	LOG(INFO) << "Application terminated normally.";
	return 0;
}

void Server::start(const int c_port, const int w_port)
{
	if (active) return;

	assert(c_port > 1024);
	assert(w_port > 1024);
	assert(c_port != w_port);

	if (active) stop();
	c_portno = c_port;
	w_portno = w_port;

	c_sockfd = socket(PF_INET, SOCK_STREAM, 0);
	w_sockfd = socket(PF_INET, SOCK_STREAM, 0);

	struct sockaddr_in addr;
	addr.sin_family = AF_INET;
	addr.sin_addr.s_addr = INADDR_ANY;
	
	addr.sin_port = htons(c_port);
	if (bind(c_sockfd, (struct sockaddr *)&addr, sizeof(addr)) != 0) {
		LOG(FATAL) << "Server starting: binding clientside socket with address";
	}
	fcntl(c_sockfd, F_SETFL, fcntl(c_sockfd, F_GETFL, 0) | O_NONBLOCK);

	addr.sin_port = htons(w_port);
	if (bind(w_sockfd, (struct sockaddr *)&addr, sizeof(addr)) != 0) {
		LOG(FATAL) << "Server starting: binding worldside socket with address";
	}
	fcntl(w_sockfd, F_SETFL, fcntl(w_sockfd, F_GETFL, 0) | O_NONBLOCK);

	listen(c_sockfd, 5);
	listen(w_sockfd, 5);

	cio.set<Server, &Server::accept_cb>(this);
	cio.start(c_sockfd, ev::READ);
	wio.set<Server, &Server::accept_w_cb>(this);
	wio.start(w_sockfd, ev::READ);

	sig.set<&Server::signal_cb>();
	sig.start(SIGINT);

	active = true;
	LOG(INFO) << "Server started. Listening clients on port " << c_port << ", worlds on port " << w_port;
}

void Server::signal_cb(ev::sig &signal, int revents)
{
	LOG(INFO) << "Catch interruption.";
	signal.loop.break_loop();
}

void Server::stop()
{
	if (!active) return;

	cio.stop();
	shutdown(c_sockfd, SHUT_RDWR);
	close(c_sockfd);
	wio.stop();
	shutdown(w_sockfd, SHUT_RDWR);
	close(w_sockfd);
	sig.stop();

	active = false;
	LOG(INFO) << "Server stopped.";
}

!darkstarx@darkstarx:~/projects/server/build$ gdb --args ./server -c 1935
GNU gdb (Debian 7.7.1+dfsg-3) 7.7.1
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from ./server...done.
(gdb) r
Starting program: /home/darkstarx/projects/server/build/server -c 1935
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
I1002 19:54:33.873543 30230 Server.cpp:91] Server started. Listening clients on port 1935, worlds on port 1026
^C
Program received signal SIGINT, Interrupt.
0x00007ffff6607573 in __epoll_wait_nocancel () at ../sysdeps/unix/syscall-template.S:81
81      ../sysdeps/unix/syscall-template.S: Нет такого файла или каталога.
(gdb) bt
#0  0x00007ffff6607573 in __epoll_wait_nocancel () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ffff731edd5 in ?? () from /usr/lib/x86_64-linux-gnu/libev.so.4
#2  0x00007ffff7321068 in ev_run () from /usr/lib/x86_64-linux-gnu/libev.so.4
#3  0x000000000044212f in ev::loop_ref::run (this=0x7fffffffe320, flags=0) at /usr/include/ev++.h:211
#4  0x0000000000441d28 in main (argc=3, argv=0x7fffffffe4d8) at /home/darkstarx/projects/server/main.cpp:53