524 lines
15 KiB
C++
524 lines
15 KiB
C++
/*
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Copyright (c) 2003, 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_TORRENT_HANDLE_HPP_INCLUDED
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#define TORRENT_TORRENT_HANDLE_HPP_INCLUDED
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#include <vector>
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#include <set>
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#ifdef _MSC_VER
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#pragma warning(push, 1)
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#endif
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#include <boost/date_time/posix_time/posix_time_types.hpp>
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#ifdef _MSC_VER
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#pragma warning(pop)
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#endif
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#include "libtorrent/peer_id.hpp"
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#include "libtorrent/peer_info.hpp"
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#include "libtorrent/piece_picker.hpp"
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#include "libtorrent/torrent_info.hpp"
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#include "libtorrent/time.hpp"
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#include "libtorrent/config.hpp"
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#include "libtorrent/storage.hpp"
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namespace libtorrent
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{
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namespace fs = boost::filesystem;
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namespace aux
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{
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struct session_impl;
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struct checker_impl;
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}
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struct torrent_plugin;
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struct TORRENT_EXPORT duplicate_torrent: std::exception
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{
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virtual const char* what() const throw()
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{ return "torrent already exists in session"; }
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};
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struct TORRENT_EXPORT invalid_handle: std::exception
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{
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virtual const char* what() const throw()
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{ return "invalid torrent handle used"; }
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};
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struct TORRENT_EXPORT torrent_status
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{
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torrent_status()
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: state(checking_resume_data)
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, paused(false)
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, progress(0.f)
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, total_download(0)
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, total_upload(0)
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, total_payload_download(0)
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, total_payload_upload(0)
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, total_failed_bytes(0)
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, total_redundant_bytes(0)
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, download_rate(0)
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, upload_rate(0)
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, download_payload_rate(0)
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, upload_payload_rate(0)
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, num_seeds(0)
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, num_peers(0)
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, num_complete(-1)
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, num_incomplete(-1)
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, list_seeds(0)
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, list_peers(0)
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, num_pieces(0)
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, total_done(0)
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, total_wanted_done(0)
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, total_wanted(0)
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, distributed_copies(0.f)
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, block_size(0)
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, num_uploads(0)
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, num_connections(0)
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, uploads_limit(0)
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, connections_limit(0)
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, storage_mode(storage_mode_sparse)
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, up_bandwidth_queue(0)
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, down_bandwidth_queue(0)
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, all_time_upload(0)
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, all_time_download(0)
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, active_time(0)
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, seeding_time(0)
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, seed_rank(0)
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, last_scrape(0)
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, has_incoming(false)
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, sparse_regions(0)
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{}
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enum state_t
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{
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queued_for_checking,
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checking_files,
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downloading_metadata,
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downloading,
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finished,
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seeding,
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allocating,
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checking_resume_data
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};
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state_t state;
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bool paused;
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float progress;
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std::string error;
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boost::posix_time::time_duration next_announce;
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boost::posix_time::time_duration announce_interval;
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std::string current_tracker;
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// transferred this session!
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// total, payload plus protocol
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size_type total_download;
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size_type total_upload;
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// payload only
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size_type total_payload_download;
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size_type total_payload_upload;
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// the amount of payload bytes that
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// has failed their hash test
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size_type total_failed_bytes;
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// the number of payload bytes that
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// has been received redundantly.
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size_type total_redundant_bytes;
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// current transfer rate
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// payload plus protocol
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float download_rate;
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float upload_rate;
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// the rate of payload that is
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// sent and received
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float download_payload_rate;
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float upload_payload_rate;
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// the number of peers this torrent is connected to
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// that are seeding.
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int num_seeds;
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// the number of peers this torrent
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// is connected to (including seeds).
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int num_peers;
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// if the tracker sends scrape info in its
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// announce reply, these fields will be
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// set to the total number of peers that
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// have the whole file and the total number
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// of peers that are still downloading
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int num_complete;
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int num_incomplete;
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// this is the number of seeds whose IP we know
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// but are not necessarily connected to
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int list_seeds;
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// this is the number of peers whose IP we know
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// (including seeds), but are not necessarily
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// connected to
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int list_peers;
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// the number of peers in our peerlist that
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// we potentially could connect to
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int connect_candidates;
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bitfield pieces;
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// this is the number of pieces the client has
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// downloaded. it is equal to:
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// std::accumulate(pieces->begin(), pieces->end());
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int num_pieces;
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// the number of bytes of the file we have
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// including pieces that may have been filtered
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// after we downloaded them
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size_type total_done;
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// the number of bytes we have of those that we
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// want. i.e. not counting bytes from pieces that
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// are filtered as not wanted.
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size_type total_wanted_done;
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// the total number of bytes we want to download
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// this may be smaller than the total torrent size
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// in case any pieces are filtered as not wanted
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size_type total_wanted;
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// the number of distributed copies of the file.
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// note that one copy may be spread out among many peers.
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//
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// the integer part tells how many copies
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// there are of the rarest piece(s)
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//
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// the fractional part tells the fraction of pieces that
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// have more copies than the rarest piece(s).
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float distributed_copies;
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// the block size that is used in this torrent. i.e.
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// the number of bytes each piece request asks for
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// and each bit in the download queue bitfield represents
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int block_size;
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int num_uploads;
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int num_connections;
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int uploads_limit;
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int connections_limit;
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// true if the torrent is saved in compact mode
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// false if it is saved in full allocation mode
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storage_mode_t storage_mode;
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int up_bandwidth_queue;
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int down_bandwidth_queue;
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// number of bytes downloaded since torrent was started
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// saved and restored from resume data
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size_type all_time_upload;
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size_type all_time_download;
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// the number of seconds of being active
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// and as being a seed, saved and restored
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// from resume data
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int active_time;
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int seeding_time;
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// higher value means more important to seed
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int seed_rank;
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// number of seconds since last scrape, or -1 if
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// there hasn't been a scrape
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int last_scrape;
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// true if there are incoming connections to this
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// torrent
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bool has_incoming;
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// the number of "holes" in the torrent
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int sparse_regions;
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};
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struct TORRENT_EXPORT block_info
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{
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enum block_state_t
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{ none, requested, writing, finished };
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tcp::endpoint peer;
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// number of bytes downloaded in this block
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unsigned bytes_progress:16;
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// the total number of bytes in this block
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unsigned block_size:16;
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// the state this block is in (see block_state_t)
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unsigned state:2;
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// the number of peers that has requested this block
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// typically 0 or 1. If > 1, this block is in
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// end game mode
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unsigned num_peers:14;
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};
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struct TORRENT_EXPORT partial_piece_info
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{
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enum { max_blocks_per_piece = 512 };
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int piece_index;
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int blocks_in_piece;
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// the number of blocks in the finished state
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int finished;
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// the number of blocks in the writing state
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int writing;
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// the number of blocks in the requested state
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int requested;
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block_info blocks[max_blocks_per_piece];
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enum state_t { none, slow, medium, fast };
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state_t piece_state;
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};
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struct TORRENT_EXPORT torrent_handle
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{
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friend class invariant_access;
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friend struct aux::session_impl;
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friend class torrent;
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torrent_handle() {}
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enum flags_t { overwrite_existing = 1 };
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void add_piece(int piece, char const* data, int flags = 0) const;
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void read_piece(int piece) const;
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void get_full_peer_list(std::vector<peer_list_entry>& v) const;
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void get_peer_info(std::vector<peer_info>& v) const;
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torrent_status status() const;
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void get_download_queue(std::vector<partial_piece_info>& queue) const;
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#ifndef TORRENT_NO_DEPRECATE
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// fills the specified vector with the download progress [0, 1]
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// of each file in the torrent. The files are ordered as in
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// the torrent_info.
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void file_progress(std::vector<float>& progress) const TORRENT_DEPRECATED;
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#endif
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void file_progress(std::vector<size_type>& progress) const;
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void clear_error() const;
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std::vector<announce_entry> trackers() const;
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void replace_trackers(std::vector<announce_entry> const&) const;
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void add_tracker(announce_entry const&) const;
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void add_url_seed(std::string const& url) const;
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void remove_url_seed(std::string const& url) const;
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std::set<std::string> url_seeds() const;
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void add_http_seed(std::string const& url) const;
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void remove_http_seed(std::string const& url) const;
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std::set<std::string> http_seeds() const;
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#ifndef TORRENT_DISABLE_EXTENSIONS
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void add_extension(boost::function<boost::shared_ptr<torrent_plugin>(torrent*, void*)> const& ext
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, void* userdata = 0);
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#endif
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bool has_metadata() const;
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bool set_metadata(char const* metadata, int size) const;
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const torrent_info& get_torrent_info() const;
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bool is_valid() const;
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bool is_seed() const;
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bool is_finished() const;
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bool is_paused() const;
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void pause() const;
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void resume() const;
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void force_recheck() const;
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void save_resume_data() const;
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bool is_auto_managed() const;
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void auto_managed(bool m) const;
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int queue_position() const;
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void queue_position_up() const;
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void queue_position_down() const;
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void queue_position_top() const;
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void queue_position_bottom() const;
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#ifndef TORRENT_DISABLE_RESOLVE_COUNTRIES
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void resolve_countries(bool r);
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bool resolve_countries() const;
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#endif
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storage_interface* get_storage_impl() const;
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// all these are deprecated, use piece
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// priority functions instead
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// ================ start deprecation ============
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#ifndef TORRENT_NO_DEPRECATE
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// deprecated in 0.13
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// marks the piece with the given index as filtered
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// it will not be downloaded
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void filter_piece(int index, bool filter) const TORRENT_DEPRECATED;
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void filter_pieces(std::vector<bool> const& pieces) const TORRENT_DEPRECATED;
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bool is_piece_filtered(int index) const TORRENT_DEPRECATED;
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std::vector<bool> filtered_pieces() const TORRENT_DEPRECATED;
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// marks the file with the given index as filtered
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// it will not be downloaded
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void filter_files(std::vector<bool> const& files) const TORRENT_DEPRECATED;
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// ================ end deprecation ============
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#endif
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void piece_availability(std::vector<int>& avail) const;
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// priority must be within the range [0, 7]
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void piece_priority(int index, int priority) const;
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int piece_priority(int index) const;
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void prioritize_pieces(std::vector<int> const& pieces) const;
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std::vector<int> piece_priorities() const;
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// priority must be within the range [0, 7]
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void file_priority(int index, int priority) const;
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int file_priority(int index) const;
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void prioritize_files(std::vector<int> const& files) const;
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std::vector<int> file_priorities() const;
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// set the interface to bind outgoing connections
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// to.
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void use_interface(const char* net_interface) const;
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#ifndef TORRENT_NO_DEPRECATE
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// deprecated in 0.14
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// use save_resume_data() instead. It is async. and
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// will return the resume data in an alert
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entry write_resume_data() const TORRENT_DEPRECATED;
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#endif
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// forces this torrent to reannounce
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// (make a rerequest from the tracker)
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void force_reannounce() const;
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// forces a reannounce in the specified amount of time.
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// This overrides the default announce interval, and no
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// announce will take place until the given time has
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// timed out.
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void force_reannounce(boost::posix_time::time_duration) const;
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// performs a scrape request
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void scrape_tracker() const;
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// returns the name of this torrent, in case it doesn't
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// have metadata it returns the name assigned to it
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// when it was added.
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std::string name() const;
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// TODO: add a feature where the user can tell the torrent
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// to finish all pieces currently in the pipeline, and then
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// abort the torrent.
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void set_upload_limit(int limit) const;
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int upload_limit() const;
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void set_download_limit(int limit) const;
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int download_limit() const;
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void set_sequential_download(bool sd) const;
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bool is_sequential_download() const;
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void set_peer_upload_limit(tcp::endpoint ip, int limit) const;
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void set_peer_download_limit(tcp::endpoint ip, int limit) const;
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// manually connect a peer
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void connect_peer(tcp::endpoint const& adr, int source = 0) const;
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// valid ratios are 0 (infinite ratio) or [ 1.0 , inf )
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// the ratio is uploaded / downloaded. less than 1 is not allowed
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void set_ratio(float up_down_ratio) const;
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fs::path save_path() const;
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// -1 means unlimited unchokes
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void set_max_uploads(int max_uploads) const;
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// -1 means unlimited connections
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void set_max_connections(int max_connections) const;
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int max_connections() const;
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void set_tracker_login(std::string const& name
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, std::string const& password) const;
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// post condition: save_path() == save_path if true is returned
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void move_storage(fs::path const& save_path) const;
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void move_storage(fs::wpath const& save_path) const;
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void rename_file(int index, fs::path const& new_name) const;
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void rename_file(int index, fs::wpath const& new_name) const;
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bool super_seeding() const;
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void super_seeding(bool on) const;
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sha1_hash info_hash() const;
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bool operator==(const torrent_handle& h) const
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{ return m_torrent.lock() == h.m_torrent.lock(); }
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bool operator!=(const torrent_handle& h) const
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{ return m_torrent.lock() != h.m_torrent.lock(); }
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bool operator<(const torrent_handle& h) const
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{ return m_torrent.lock() < h.m_torrent.lock(); }
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private:
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torrent_handle(boost::weak_ptr<torrent> const& t)
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: m_torrent(t)
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{}
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#ifdef TORRENT_DEBUG
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void check_invariant() const;
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#endif
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boost::weak_ptr<torrent> m_torrent;
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};
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}
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#endif // TORRENT_TORRENT_HANDLE_HPP_INCLUDED
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