829 lines
24 KiB
C++
Executable File
829 lines
24 KiB
C++
Executable File
/*
|
|
|
|
Copyright (c) 2003, 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.
|
|
|
|
*/
|
|
|
|
#ifndef TORRENT_TORRENT_HPP_INCLUDE
|
|
#define TORRENT_TORRENT_HPP_INCLUDE
|
|
|
|
#include <algorithm>
|
|
#include <vector>
|
|
#include <set>
|
|
#include <list>
|
|
#include <iostream>
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(push, 1)
|
|
#endif
|
|
|
|
#include <boost/limits.hpp>
|
|
#include <boost/filesystem/path.hpp>
|
|
#include <boost/tuple/tuple.hpp>
|
|
#include <boost/enable_shared_from_this.hpp>
|
|
#include <boost/scoped_ptr.hpp>
|
|
#include <boost/intrusive_ptr.hpp>
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(pop)
|
|
#endif
|
|
|
|
#include "libtorrent/torrent_handle.hpp"
|
|
#include "libtorrent/entry.hpp"
|
|
#include "libtorrent/torrent_info.hpp"
|
|
#include "libtorrent/socket.hpp"
|
|
#include "libtorrent/policy.hpp"
|
|
#include "libtorrent/tracker_manager.hpp"
|
|
#include "libtorrent/stat.hpp"
|
|
#include "libtorrent/alert.hpp"
|
|
#include "libtorrent/piece_picker.hpp"
|
|
#include "libtorrent/config.hpp"
|
|
#include "libtorrent/escape_string.hpp"
|
|
#include "libtorrent/bandwidth_manager.hpp"
|
|
#include "libtorrent/storage.hpp"
|
|
#include "libtorrent/hasher.hpp"
|
|
#include "libtorrent/assert.hpp"
|
|
|
|
namespace libtorrent
|
|
{
|
|
#if defined(TORRENT_VERBOSE_LOGGING) || defined(TORRENT_LOGGING)
|
|
struct logger;
|
|
#endif
|
|
|
|
class piece_manager;
|
|
struct torrent_plugin;
|
|
|
|
namespace aux
|
|
{
|
|
struct session_impl;
|
|
struct piece_checker_data;
|
|
}
|
|
|
|
namespace fs = boost::filesystem;
|
|
|
|
// a torrent is a class that holds information
|
|
// for a specific download. It updates itself against
|
|
// the tracker
|
|
class TORRENT_EXPORT torrent: public request_callback
|
|
, public boost::enable_shared_from_this<torrent>
|
|
{
|
|
public:
|
|
|
|
torrent(
|
|
aux::session_impl& ses
|
|
, aux::checker_impl& checker
|
|
, boost::intrusive_ptr<torrent_info> tf
|
|
, fs::path const& save_path
|
|
, tcp::endpoint const& net_interface
|
|
, storage_mode_t m_storage_mode
|
|
, int block_size
|
|
, storage_constructor_type sc
|
|
, bool paused);
|
|
|
|
// used with metadata-less torrents
|
|
// (the metadata is downloaded from the peers)
|
|
torrent(
|
|
aux::session_impl& ses
|
|
, aux::checker_impl& checker
|
|
, char const* tracker_url
|
|
, sha1_hash const& info_hash
|
|
, char const* name
|
|
, fs::path const& save_path
|
|
, tcp::endpoint const& net_interface
|
|
, storage_mode_t m_storage_mode
|
|
, int block_size
|
|
, storage_constructor_type sc
|
|
, bool paused);
|
|
|
|
~torrent();
|
|
|
|
// starts the announce timer
|
|
void start();
|
|
|
|
#ifndef TORRENT_DISABLE_EXTENSIONS
|
|
void add_extension(boost::shared_ptr<torrent_plugin>);
|
|
void add_extension(boost::function<boost::shared_ptr<torrent_plugin>(torrent*, void*)> const& ext
|
|
, void* userdata);
|
|
#endif
|
|
|
|
// this is called when the torrent has metadata.
|
|
// it will initialize the storage and the piece-picker
|
|
void init();
|
|
|
|
// this will flag the torrent as aborted. The main
|
|
// loop in session_impl will check for this state
|
|
// on all torrents once every second, and take
|
|
// the necessary actions then.
|
|
void abort();
|
|
bool is_aborted() const { return m_abort; }
|
|
|
|
// returns true if this torrent is being allocated
|
|
// by the checker thread.
|
|
bool is_allocating() const;
|
|
|
|
session_settings const& settings() const;
|
|
|
|
aux::session_impl& session() { return m_ses; }
|
|
|
|
void set_sequenced_download_threshold(int threshold);
|
|
|
|
bool verify_resume_data(entry& rd, std::string& error)
|
|
{ TORRENT_ASSERT(m_storage); return m_storage->verify_resume_data(rd, error); }
|
|
|
|
void second_tick(stat& accumulator, float tick_interval);
|
|
|
|
// debug purpose only
|
|
void print(std::ostream& os) const;
|
|
|
|
std::string name() const;
|
|
|
|
bool check_fastresume(aux::piece_checker_data&);
|
|
std::pair<bool, float> check_files();
|
|
void files_checked(std::vector<piece_picker::downloading_piece> const&
|
|
unfinished_pieces);
|
|
|
|
stat statistics() const { return m_stat; }
|
|
size_type bytes_left() const;
|
|
boost::tuples::tuple<size_type, size_type> bytes_done() const;
|
|
size_type quantized_bytes_done() const;
|
|
|
|
void ip_filter_updated() { m_policy.ip_filter_updated(); }
|
|
|
|
void pause();
|
|
void resume();
|
|
bool is_paused() const { return m_paused; }
|
|
|
|
void delete_files();
|
|
|
|
// ============ start deprecation =============
|
|
void filter_piece(int index, bool filter);
|
|
void filter_pieces(std::vector<bool> const& bitmask);
|
|
bool is_piece_filtered(int index) const;
|
|
void filtered_pieces(std::vector<bool>& bitmask) const;
|
|
void filter_files(std::vector<bool> const& files);
|
|
// ============ end deprecation =============
|
|
|
|
void piece_availability(std::vector<int>& avail) const;
|
|
|
|
void set_piece_priority(int index, int priority);
|
|
int piece_priority(int index) const;
|
|
|
|
void prioritize_pieces(std::vector<int> const& pieces);
|
|
void piece_priorities(std::vector<int>&) const;
|
|
|
|
void prioritize_files(std::vector<int> const& files);
|
|
|
|
torrent_status status() const;
|
|
void file_progress(std::vector<float>& fp) const;
|
|
|
|
void use_interface(const char* net_interface);
|
|
tcp::endpoint const& get_interface() const { return m_net_interface; }
|
|
|
|
void connect_to_url_seed(std::string const& url);
|
|
bool connect_to_peer(policy::peer* peerinfo);
|
|
|
|
void set_ratio(float ratio)
|
|
{ TORRENT_ASSERT(ratio >= 0.0f); m_ratio = ratio; }
|
|
|
|
float ratio() const
|
|
{ return m_ratio; }
|
|
|
|
#ifndef TORRENT_DISABLE_RESOLVE_COUNTRIES
|
|
void resolve_countries(bool r)
|
|
{ m_resolve_countries = r; }
|
|
|
|
bool resolving_countries() const { return m_resolve_countries; }
|
|
#endif
|
|
|
|
// --------------------------------------------
|
|
// BANDWIDTH MANAGEMENT
|
|
|
|
bandwidth_limit m_bandwidth_limit[2];
|
|
|
|
void request_bandwidth(int channel
|
|
, boost::intrusive_ptr<peer_connection> const& p
|
|
, bool non_prioritized);
|
|
|
|
void perform_bandwidth_request(int channel
|
|
, boost::intrusive_ptr<peer_connection> const& p
|
|
, int block_size
|
|
, bool non_prioritized);
|
|
|
|
void expire_bandwidth(int channel, int amount);
|
|
void assign_bandwidth(int channel, int amount, int blk);
|
|
|
|
int bandwidth_throttle(int channel) const;
|
|
|
|
int max_assignable_bandwidth(int channel) const
|
|
{ return m_bandwidth_limit[channel].max_assignable(); }
|
|
|
|
// --------------------------------------------
|
|
// PEER MANAGEMENT
|
|
|
|
// add or remove a url that will be attempted for
|
|
// finding the file(s) in this torrent.
|
|
void add_url_seed(std::string const& url)
|
|
{ m_web_seeds.insert(url); }
|
|
|
|
void remove_url_seed(std::string const& url)
|
|
{ m_web_seeds.erase(url); }
|
|
|
|
void retry_url_seed(std::string const& url);
|
|
|
|
std::set<std::string> url_seeds() const
|
|
{ return m_web_seeds; }
|
|
|
|
bool free_upload_slots() const
|
|
{ return m_num_uploads < m_max_uploads; }
|
|
|
|
void choke_peer(peer_connection& c);
|
|
bool unchoke_peer(peer_connection& c);
|
|
|
|
// used by peer_connection to attach itself to a torrent
|
|
// since incoming connections don't know what torrent
|
|
// they're a part of until they have received an info_hash.
|
|
void attach_peer(peer_connection* p);
|
|
|
|
// this will remove the peer and make sure all
|
|
// the pieces it had have their reference counter
|
|
// decreased in the piece_picker
|
|
void remove_peer(peer_connection* p);
|
|
|
|
void cancel_block(piece_block block);
|
|
|
|
bool want_more_peers() const;
|
|
bool try_connect_peer();
|
|
|
|
// the number of peers that belong to this torrent
|
|
int num_peers() const { return (int)m_connections.size(); }
|
|
int num_seeds() const;
|
|
|
|
typedef std::set<peer_connection*>::iterator peer_iterator;
|
|
typedef std::set<peer_connection*>::const_iterator const_peer_iterator;
|
|
|
|
const_peer_iterator begin() const { return m_connections.begin(); }
|
|
const_peer_iterator end() const { return m_connections.end(); }
|
|
|
|
peer_iterator begin() { return m_connections.begin(); }
|
|
peer_iterator end() { return m_connections.end(); }
|
|
|
|
void resolve_peer_country(boost::intrusive_ptr<peer_connection> const& p) const;
|
|
|
|
void get_peer_info(std::vector<peer_info>& v);
|
|
void get_download_queue(std::vector<partial_piece_info>& queue);
|
|
|
|
// --------------------------------------------
|
|
// TRACKER MANAGEMENT
|
|
|
|
// these are callbacks called by the tracker_connection instance
|
|
// (either http_tracker_connection or udp_tracker_connection)
|
|
// when this torrent got a response from its tracker request
|
|
// or when a failure occured
|
|
virtual void tracker_response(
|
|
tracker_request const& r
|
|
, std::vector<peer_entry>& e, int interval
|
|
, int complete, int incomplete);
|
|
virtual void tracker_request_timed_out(
|
|
tracker_request const& r);
|
|
virtual void tracker_request_error(tracker_request const& r
|
|
, int response_code, const std::string& str);
|
|
virtual void tracker_warning(std::string const& msg);
|
|
virtual void tracker_scrape_response(tracker_request const& req
|
|
, int complete, int incomplete, int downloaded);
|
|
|
|
// generates a request string for sending
|
|
// to the tracker
|
|
tracker_request generate_tracker_request();
|
|
|
|
// if no password and username is set
|
|
// this will return an empty string, otherwise
|
|
// it will concatenate the login and password
|
|
// ready to be sent over http (but without
|
|
// base64 encoding).
|
|
std::string tracker_login() const;
|
|
|
|
// returns the absolute time when the next tracker
|
|
// announce will take place.
|
|
ptime next_announce() const;
|
|
|
|
// returns true if it is time for this torrent to make another
|
|
// tracker request
|
|
bool should_request();
|
|
|
|
// forcefully sets next_announce to the current time
|
|
void force_tracker_request();
|
|
void force_tracker_request(ptime);
|
|
void scrape_tracker();
|
|
|
|
// sets the username and password that will be sent to
|
|
// the tracker
|
|
void set_tracker_login(std::string const& name, std::string const& pw);
|
|
|
|
// the tcp::endpoint of the tracker that we managed to
|
|
// announce ourself at the last time we tried to announce
|
|
const tcp::endpoint& current_tracker() const;
|
|
|
|
// --------------------------------------------
|
|
// PIECE MANAGEMENT
|
|
|
|
// returns true if we have downloaded the given piece
|
|
bool have_piece(int index) const
|
|
{
|
|
TORRENT_ASSERT(index >= 0 && index < (signed)m_have_pieces.size());
|
|
return m_have_pieces[index];
|
|
}
|
|
|
|
const std::vector<bool>& pieces() const
|
|
{ return m_have_pieces; }
|
|
|
|
int num_pieces() const { return m_num_pieces; }
|
|
|
|
// when we get a have- or bitfield- messages, this is called for every
|
|
// piece a peer has gained.
|
|
void peer_has(int index)
|
|
{
|
|
if (m_picker.get())
|
|
{
|
|
TORRENT_ASSERT(!is_seed());
|
|
TORRENT_ASSERT(index >= 0 && index < (signed)m_have_pieces.size());
|
|
m_picker->inc_refcount(index);
|
|
}
|
|
#ifndef NDEBUG
|
|
else
|
|
{
|
|
TORRENT_ASSERT(is_seed());
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void peer_has_all()
|
|
{
|
|
if (m_picker.get())
|
|
{
|
|
TORRENT_ASSERT(!is_seed());
|
|
m_picker->inc_refcount_all();
|
|
}
|
|
#ifndef NDEBUG
|
|
else
|
|
{
|
|
TORRENT_ASSERT(is_seed());
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// when peer disconnects, this is called for every piece it had
|
|
void peer_lost(int index)
|
|
{
|
|
if (m_picker.get())
|
|
{
|
|
TORRENT_ASSERT(!is_seed());
|
|
TORRENT_ASSERT(index >= 0 && index < (signed)m_have_pieces.size());
|
|
m_picker->dec_refcount(index);
|
|
}
|
|
#ifndef NDEBUG
|
|
else
|
|
{
|
|
TORRENT_ASSERT(is_seed());
|
|
}
|
|
#endif
|
|
}
|
|
|
|
int block_size() const { TORRENT_ASSERT(m_block_size > 0); return m_block_size; }
|
|
peer_request to_req(piece_block const& p);
|
|
|
|
// this will tell all peers that we just got his piece
|
|
// and also let the piece picker know that we have this piece
|
|
// so it wont pick it for download
|
|
void announce_piece(int index);
|
|
|
|
void disconnect_all();
|
|
|
|
// this is called wheh the torrent has completed
|
|
// the download. It will post an event, disconnect
|
|
// all seeds and let the tracker know we're finished.
|
|
void completed();
|
|
|
|
// this is the asio callback that is called when a name
|
|
// lookup for a PEER is completed.
|
|
void on_peer_name_lookup(asio::error_code const& e, tcp::resolver::iterator i
|
|
, peer_id pid);
|
|
|
|
// this is the asio callback that is called when a name
|
|
// lookup for a WEB SEED is completed.
|
|
void on_name_lookup(asio::error_code const& e, tcp::resolver::iterator i
|
|
, std::string url, tcp::endpoint proxy);
|
|
|
|
// this is the asio callback that is called when a name
|
|
// lookup for a proxy for a web seed is completed.
|
|
void on_proxy_name_lookup(asio::error_code const& e, tcp::resolver::iterator i
|
|
, std::string url);
|
|
|
|
// this is called when the torrent has finished. i.e.
|
|
// all the pieces we have not filtered have been downloaded.
|
|
// If no pieces are filtered, this is called first and then
|
|
// completed() is called immediately after it.
|
|
void finished();
|
|
|
|
void async_verify_piece(int piece_index, boost::function<void(bool)> const&);
|
|
|
|
// this is called from the peer_connection
|
|
// each time a piece has failed the hash
|
|
// test
|
|
void piece_finished(int index, bool passed_hash_check);
|
|
void piece_failed(int index);
|
|
void received_redundant_data(int num_bytes)
|
|
{ TORRENT_ASSERT(num_bytes > 0); m_total_redundant_bytes += num_bytes; }
|
|
|
|
// this is true if we have all the pieces
|
|
bool is_seed() const
|
|
{
|
|
return valid_metadata()
|
|
&& m_num_pieces == m_torrent_file->num_pieces();
|
|
}
|
|
|
|
// this is true if we have all the pieces that we want
|
|
bool is_finished() const
|
|
{
|
|
if (is_seed()) return true;
|
|
return valid_metadata() && m_torrent_file->num_pieces()
|
|
- m_num_pieces - m_picker->num_filtered() == 0;
|
|
}
|
|
|
|
fs::path save_path() const;
|
|
alert_manager& alerts() const;
|
|
piece_picker& picker()
|
|
{
|
|
TORRENT_ASSERT(m_picker.get());
|
|
return *m_picker;
|
|
}
|
|
bool has_picker() const
|
|
{
|
|
return m_picker.get() != 0;
|
|
}
|
|
policy& get_policy() { return m_policy; }
|
|
piece_manager& filesystem();
|
|
torrent_info const& torrent_file() const
|
|
{ return *m_torrent_file; }
|
|
|
|
std::vector<announce_entry> const& trackers() const
|
|
{ return m_trackers; }
|
|
|
|
void replace_trackers(std::vector<announce_entry> const& urls);
|
|
|
|
torrent_handle get_handle() const;
|
|
|
|
// LOGGING
|
|
#if defined(TORRENT_VERBOSE_LOGGING) || defined(TORRENT_LOGGING)
|
|
virtual void debug_log(const std::string& line);
|
|
#endif
|
|
|
|
// DEBUG
|
|
#ifndef NDEBUG
|
|
void check_invariant() const;
|
|
#endif
|
|
|
|
// --------------------------------------------
|
|
// RESOURCE MANAGEMENT
|
|
|
|
void set_peer_upload_limit(tcp::endpoint ip, int limit);
|
|
void set_peer_download_limit(tcp::endpoint ip, int limit);
|
|
|
|
void set_upload_limit(int limit);
|
|
int upload_limit() const;
|
|
void set_download_limit(int limit);
|
|
int download_limit() const;
|
|
|
|
void set_max_uploads(int limit);
|
|
int max_uploads() const { return m_max_uploads; }
|
|
void set_max_connections(int limit);
|
|
int max_connections() const { return m_max_connections; }
|
|
void move_storage(fs::path const& save_path);
|
|
|
|
// unless this returns true, new connections must wait
|
|
// with their initialization.
|
|
bool ready_for_connections() const
|
|
{ return m_connections_initialized; }
|
|
bool valid_metadata() const
|
|
{ return m_torrent_file->is_valid(); }
|
|
|
|
// parses the info section from the given
|
|
// bencoded tree and moves the torrent
|
|
// to the checker thread for initial checking
|
|
// of the storage.
|
|
void set_metadata(entry const&);
|
|
|
|
private:
|
|
|
|
void on_files_deleted(int ret, disk_io_job const& j);
|
|
void on_files_released(int ret, disk_io_job const& j);
|
|
void on_torrent_paused(int ret, disk_io_job const& j);
|
|
void on_storage_moved(int ret, disk_io_job const& j);
|
|
|
|
void on_piece_verified(int ret, disk_io_job const& j
|
|
, boost::function<void(bool)> f);
|
|
|
|
void try_next_tracker();
|
|
int prioritize_tracker(int tracker_index);
|
|
void on_country_lookup(asio::error_code const& error, tcp::resolver::iterator i
|
|
, boost::intrusive_ptr<peer_connection> p) const;
|
|
bool request_bandwidth_from_session(int channel) const;
|
|
|
|
void update_peer_interest();
|
|
|
|
boost::intrusive_ptr<torrent_info> m_torrent_file;
|
|
|
|
// is set to true when the torrent has
|
|
// been aborted.
|
|
bool m_abort;
|
|
|
|
// is true if this torrent has been paused
|
|
bool m_paused;
|
|
// this is true from the time when the torrent was
|
|
// paused to the time should_request() is called
|
|
bool m_just_paused;
|
|
|
|
tracker_request::event_t m_event;
|
|
|
|
void parse_response(const entry& e, std::vector<peer_entry>& peer_list);
|
|
|
|
// the size of a request block
|
|
// each piece is divided into these
|
|
// blocks when requested
|
|
int m_block_size;
|
|
|
|
// if this pointer is 0, the torrent is in
|
|
// a state where the metadata hasn't been
|
|
// received yet.
|
|
// the piece_manager keeps the torrent object
|
|
// alive by holding a shared_ptr to it and
|
|
// the torrent keeps the piece manager alive
|
|
// with this intrusive_ptr. This cycle is
|
|
// broken when torrent::abort() is called
|
|
// Then the torrent releases the piece_manager
|
|
// and when the piece_manager is complete with all
|
|
// outstanding disk io jobs (that keeps
|
|
// the piece_manager alive) it will destruct
|
|
// and release the torrent file. The reason for
|
|
// this is that the torrent_info is used by
|
|
// the piece_manager, and stored in the
|
|
// torrent, so the torrent cannot destruct
|
|
// before the piece_manager.
|
|
boost::intrusive_ptr<piece_manager> m_owning_storage;
|
|
|
|
// this is a weak (non owninig) pointer to
|
|
// the piece_manager. This is used after the torrent
|
|
// has been aborted, and it can no longer own
|
|
// the object.
|
|
piece_manager* m_storage;
|
|
|
|
// the time of next tracker request
|
|
ptime m_next_request;
|
|
|
|
// -----------------------------
|
|
// DATA FROM TRACKER RESPONSE
|
|
|
|
// the number number of seconds between requests
|
|
// from the tracker
|
|
int m_duration;
|
|
|
|
// the scrape data from the tracker response, this
|
|
// is optional and may be -1.
|
|
int m_complete;
|
|
int m_incomplete;
|
|
|
|
#ifndef NDEBUG
|
|
public:
|
|
#endif
|
|
std::set<peer_connection*> m_connections;
|
|
#ifndef NDEBUG
|
|
private:
|
|
#endif
|
|
|
|
// The list of web seeds in this torrent. Seeds
|
|
// with fatal errors are removed from the set
|
|
std::set<std::string> m_web_seeds;
|
|
|
|
// a list of web seeds that have failed and are
|
|
// waiting to be retried
|
|
std::map<std::string, ptime> m_web_seeds_next_retry;
|
|
|
|
// urls of the web seeds that we are currently
|
|
// resolving the address for
|
|
std::set<std::string> m_resolving_web_seeds;
|
|
|
|
// used to resolve the names of web seeds
|
|
mutable tcp::resolver m_host_resolver;
|
|
|
|
#ifndef TORRENT_DISABLE_RESOLVE_COUNTRIES
|
|
// this is true while there is a country
|
|
// resolution in progress. To avoid flodding
|
|
// the DNS request queue, only one ip is resolved
|
|
// at a time.
|
|
mutable bool m_resolving_country;
|
|
|
|
// this is true if the user has enabled
|
|
// country resolution in this torrent
|
|
bool m_resolve_countries;
|
|
#endif
|
|
|
|
// this announce timer is used both
|
|
// by Local service discovery and
|
|
// by the DHT.
|
|
deadline_timer m_announce_timer;
|
|
|
|
static void on_announce_disp(boost::weak_ptr<torrent> p
|
|
, asio::error_code const& e);
|
|
|
|
// this is called once per announce interval
|
|
void on_announce();
|
|
|
|
#ifndef TORRENT_DISABLE_DHT
|
|
static void on_dht_announce_response_disp(boost::weak_ptr<torrent> t
|
|
, std::vector<tcp::endpoint> const& peers);
|
|
void on_dht_announce_response(std::vector<tcp::endpoint> const& peers);
|
|
bool should_announce_dht() const;
|
|
|
|
// the time when the DHT was last announced of our
|
|
// presence on this torrent
|
|
ptime m_last_dht_announce;
|
|
#endif
|
|
|
|
// this is the upload and download statistics for the whole torrent.
|
|
// it's updated from all its peers once every second.
|
|
libtorrent::stat m_stat;
|
|
|
|
// -----------------------------
|
|
|
|
// a back reference to the session
|
|
// this torrent belongs to.
|
|
aux::session_impl& m_ses;
|
|
aux::checker_impl& m_checker;
|
|
|
|
boost::scoped_ptr<piece_picker> m_picker;
|
|
|
|
// the queue of peer_connections that want more bandwidth
|
|
typedef std::deque<bw_queue_entry<peer_connection> > queue_t;
|
|
queue_t m_bandwidth_queue[2];
|
|
|
|
std::vector<announce_entry> m_trackers;
|
|
// this is an index into m_trackers
|
|
|
|
int m_last_working_tracker;
|
|
int m_currently_trying_tracker;
|
|
// the number of connection attempts that has
|
|
// failed in a row, this is currently used to
|
|
// determine the timeout until next try.
|
|
int m_failed_trackers;
|
|
|
|
// this is a counter that is decreased every
|
|
// second, and when it reaches 0, the policy::pulse()
|
|
// is called and the time scaler is reset to 10.
|
|
int m_time_scaler;
|
|
|
|
// the bitmask that says which pieces we have
|
|
std::vector<bool> m_have_pieces;
|
|
|
|
// the number of pieces we have. The same as
|
|
// std::accumulate(m_have_pieces.begin(),
|
|
// m_have_pieces.end(), 0)
|
|
int m_num_pieces;
|
|
|
|
// in case the piece picker hasn't been constructed
|
|
// when this settings is set, this variable will keep
|
|
// its value until the piece picker is created
|
|
int m_sequenced_download_threshold;
|
|
|
|
// is false by default and set to
|
|
// true when the first tracker reponse
|
|
// is received
|
|
bool m_got_tracker_response;
|
|
|
|
// the upload/download ratio that each peer
|
|
// tries to maintain.
|
|
// 0 is infinite
|
|
float m_ratio;
|
|
|
|
// the number of bytes that has been
|
|
// downloaded that failed the hash-test
|
|
size_type m_total_failed_bytes;
|
|
size_type m_total_redundant_bytes;
|
|
|
|
std::string m_username;
|
|
std::string m_password;
|
|
|
|
// the network interface all outgoing connections
|
|
// are opened through
|
|
tcp::endpoint m_net_interface;
|
|
|
|
fs::path m_save_path;
|
|
|
|
// determines the storage state for this torrent.
|
|
storage_mode_t m_storage_mode;
|
|
|
|
// defaults to 16 kiB, but can be set by the user
|
|
// when creating the torrent
|
|
const int m_default_block_size;
|
|
|
|
// this is set to false as long as the connections
|
|
// of this torrent hasn't been initialized. If we
|
|
// have metadata from the start, connections are
|
|
// initialized immediately, if we didn't have metadata,
|
|
// they are initialized right after files_checked().
|
|
// valid_resume_data() will return false as long as
|
|
// the connections aren't initialized, to avoid
|
|
// them from altering the piece-picker before it
|
|
// has been initialized with files_checked().
|
|
bool m_connections_initialized;
|
|
|
|
// if the torrent is started without metadata, it may
|
|
// still be given a name until the metadata is received
|
|
// once the metadata is received this field will no
|
|
// longer be used and will be reset
|
|
boost::scoped_ptr<std::string> m_name;
|
|
|
|
session_settings const& m_settings;
|
|
|
|
storage_constructor_type m_storage_constructor;
|
|
|
|
// the maximum number of uploads for this torrent
|
|
int m_max_uploads;
|
|
|
|
// the number of unchoked peers in this torrent
|
|
int m_num_uploads;
|
|
|
|
// the maximum number of connections for this torrent
|
|
int m_max_connections;
|
|
|
|
#ifndef NDEBUG
|
|
bool m_files_checked;
|
|
#endif
|
|
|
|
#ifndef TORRENT_DISABLE_EXTENSIONS
|
|
typedef std::list<boost::shared_ptr<torrent_plugin> > extension_list_t;
|
|
extension_list_t m_extensions;
|
|
#endif
|
|
|
|
#ifndef NDEBUG
|
|
// this is the amount downloaded when this torrent
|
|
// is started. i.e.
|
|
// total_done - m_initial_done <= total_payload_download
|
|
size_type m_initial_done;
|
|
#endif
|
|
|
|
policy m_policy;
|
|
};
|
|
|
|
inline ptime torrent::next_announce() const
|
|
{
|
|
return m_next_request;
|
|
}
|
|
|
|
inline void torrent::force_tracker_request()
|
|
{
|
|
m_next_request = time_now();
|
|
}
|
|
|
|
inline void torrent::force_tracker_request(ptime t)
|
|
{
|
|
m_next_request = t;
|
|
}
|
|
|
|
inline void torrent::set_tracker_login(
|
|
std::string const& name
|
|
, std::string const& pw)
|
|
{
|
|
m_username = name;
|
|
m_password = pw;
|
|
}
|
|
|
|
}
|
|
|
|
#endif // TORRENT_TORRENT_HPP_INCLUDED
|
|
|