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// libTorrent - BitTorrent library
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// Copyright (C) 2005-2007, Jari Sundell
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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// In addition, as a special exception, the copyright holders give
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// permission to link the code of portions of this program with the
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// OpenSSL library under certain conditions as described in each
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// individual source file, and distribute linked combinations
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// You must obey the GNU General Public License in all respects for
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// all of the code used other than OpenSSL. If you modify file(s)
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// with this exception, you may extend this exception to your version
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// of the file(s), but you are not obligated to do so. If you do not
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// wish to do so, delete this exception statement from your version.
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// If you delete this exception statement from all source files in the
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// program, then also delete it here.
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// Contact: Jari Sundell <jaris@ifi.uio.no>
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// 3185 Skoppum, NORWAY
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#ifndef LIBTORRENT_PROTOCOL_INITIAL_SEED_H
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#define LIBTORRENT_PROTOCOL_INITIAL_SEED_H
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#include "download/download_main.h"
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class InitialSeeding {
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InitialSeeding(DownloadMain* download);
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static const uint32_t no_offer = ~uint32_t();
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void new_peer(PeerConnectionBase* pcb);
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// Chunk was seen distributed to a peer in the swarm.
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void chunk_seen(uint32_t index, PeerConnectionBase* pcb);
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// Returns chunk we may offer the peer or no_offer if none.
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uint32_t chunk_offer(PeerConnectionBase* pcb, uint32_t indexDone);
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// During the second stage (seeding rare chunks), return
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// false if given chunk is already well-seeded now. True otherwise.
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bool should_upload(uint32_t index);
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static PeerInfo* const chunk_unsent; // Chunk never sent to anyone.
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static PeerInfo* const chunk_unknown; // Peer has chunk, we don't know who we sent it to.
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static PeerInfo* const chunk_done; // Chunk properly distributed by peer.
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uint32_t find_next(bool secondary, PeerConnectionBase* pcb);
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bool valid_peer(PeerInfo* peer);
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void clear_peer(PeerInfo* peer);
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void chunk_complete(uint32_t index, PeerConnectionBase* pcb);
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void complete(PeerConnectionBase* pcb);
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uint32_t m_chunksLeft;
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DownloadMain* m_download;
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PeerInfo** m_peerChunks;