/* Copyright (c) 2013, Arvid Norberg All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * 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. * Neither the name of the author 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 OWNER 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. */ #include "libtorrent/bencode.hpp" #include "libtorrent/entry.hpp" #include "libtorrent/address.hpp" #include "libtorrent/io_service.hpp" #include "libtorrent/error_code.hpp" #include "libtorrent/socket.hpp" #include "libtorrent/aux_/time.hpp" #include "libtorrent/io_service.hpp" #include "peer_server.hpp" #include "test_utils.hpp" #include #include #include #include #include using namespace lt; using namespace std::placeholders; struct peer_server { lt::io_service m_ios; std::atomic m_peer_requests{0}; tcp::acceptor m_acceptor{m_ios}; int m_port = 0; std::shared_ptr m_thread; peer_server() { error_code ec; m_acceptor.open(tcp::v4(), ec); if (ec) { std::printf("PEER Error opening peer listen socket: %s\n", ec.message().c_str()); return; } m_acceptor.bind(tcp::endpoint(address_v4::any(), 0), ec); if (ec) { std::printf("PEER Error binding peer socket to port 0: %s\n", ec.message().c_str()); return; } m_port = m_acceptor.local_endpoint(ec).port(); if (ec) { std::printf("PEER Error getting local endpoint of peer socket: %s\n", ec.message().c_str()); return; } m_acceptor.listen(10, ec); if (ec) { std::printf("PEER Error listening on peer socket: %s\n", ec.message().c_str()); return; } std::printf("%s: PEER peer initialized on port %d\n", time_now_string(), m_port); m_thread = std::make_shared(&peer_server::thread_fun, this); } ~peer_server() { error_code ignore; m_acceptor.cancel(ignore); m_acceptor.close(ignore); if (m_thread) m_thread->join(); } int port() const { return m_port; } int num_hits() const { return m_peer_requests; } static void new_connection(error_code const& ec, error_code* ret, bool* done) { *ret = ec; *done = true; } void thread_fun() { for (;;) { error_code ec; tcp::endpoint from; tcp::socket socket(m_ios); std::condition_variable cond; bool done = false; m_acceptor.async_accept(socket, from, std::bind(&new_connection, _1, &ec, &done)); while (!done) { m_ios.poll_one(); m_ios.reset(); } if (ec == boost::asio::error::operation_aborted || ec == boost::asio::error::bad_descriptor) return; if (ec) { std::printf("PEER Error accepting connection on peer socket: %s\n", ec.message().c_str()); return; } std::printf("%s: PEER incoming peer connection\n", time_now_string()); ++m_peer_requests; socket.close(ec); } } }; namespace { std::shared_ptr g_peer; } int start_peer() { g_peer.reset(new peer_server); return g_peer->port(); } // the number of DHT messages received int num_peer_hits() { if (g_peer) return g_peer->num_hits(); return 0; } void stop_peer() { g_peer.reset(); }