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105 lines
3.1 KiB
105 lines
3.1 KiB
12 years ago
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/*
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Copyright (c) 2007-2012, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TORRENT_LSD_HPP
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#define TORRENT_LSD_HPP
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#include "libtorrent/socket.hpp"
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#include "libtorrent/peer_id.hpp"
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#include "libtorrent/broadcast_socket.hpp"
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#include "libtorrent/intrusive_ptr_base.hpp"
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#include "libtorrent/deadline_timer.hpp"
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#include <boost/function/function2.hpp>
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#include <boost/noncopyable.hpp>
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#include <boost/shared_ptr.hpp>
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#if defined(TORRENT_LOGGING) || defined(TORRENT_VERBOSE_LOGGING)
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#include <fstream>
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#endif
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namespace libtorrent
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{
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typedef boost::function<void(tcp::endpoint, sha1_hash)> peer_callback_t;
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class lsd : public intrusive_ptr_base<lsd>
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{
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public:
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lsd(io_service& ios, address const& listen_interface
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, peer_callback_t const& cb);
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~lsd();
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// void rebind(address const& listen_interface);
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void announce(sha1_hash const& ih, int listen_port, bool broadcast = false);
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void close();
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private:
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void resend_announce(error_code const& e, std::string msg);
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void on_announce(udp::endpoint const& from, char* buffer
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, std::size_t bytes_transferred);
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// void setup_receive();
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peer_callback_t m_callback;
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// the udp socket used to send and receive
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// multicast messages on
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broadcast_socket m_socket;
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// used to resend udp packets in case
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// they time out
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deadline_timer m_broadcast_timer;
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// current retry count
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boost::uint32_t m_retry_count;
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// this is a random (presumably unique)
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// ID for this LSD node. It is used to
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// ignore our own broadcast messages.
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// There's no point in adding ourselves
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// as a peer
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int m_cookie;
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bool m_disabled;
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#if defined(TORRENT_LOGGING) || defined(TORRENT_VERBOSE_LOGGING)
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FILE* m_log;
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#endif
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};
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}
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#endif
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