void handle_error(ranger::event::tcp_connection& conn)
{
auto ep = conn.remote_endpoint();
std::cerr << "connection[" << ep << "] " << "error[" << conn.error_code() << "]: " << conn.error_description() << std::endl;
m_conn_set.erase(conn);
}
void handle_eof(ranger::event::tcp_connection& conn)
{
auto ep = conn.remote_endpoint();
std::cerr << "connection[" << ep << "] " << "eof." << std::endl;
m_conn_set.erase(conn);
}
void handle_timeout(ranger::event::tcp_connection& conn)
{
auto ep = conn.remote_endpoint();
std::cerr << "thread[" << std::this_thread::get_id() << "] " << "connection[" << ep << "] " << "timeout." << std::endl;
m_conn_set.erase(conn);
}