C++ session::add_torrent方法代码示例

	torrent_handle add_magnet_uri_deprecated(session& ses, std::string const& uri
		, add_torrent_params p, error_code& ec)
	{
		parse_magnet_uri(uri, p, ec);
		if (ec) return torrent_handle();
		return ses.add_torrent(p, ec);
	}

	torrent_handle add_magnet_uri(session& ses, std::string const& uri
		, add_torrent_params p, error_code& ec)
	{
		std::string name;
		std::string tracker;

		error_code e;
		boost::optional<std::string> display_name = url_has_argument(uri, "dn");
		if (display_name) name = unescape_string(display_name->c_str(), e);
		boost::optional<std::string> tracker_string = url_has_argument(uri, "tr");
		if (tracker_string) tracker = unescape_string(tracker_string->c_str(), e);
	
		boost::optional<std::string> btih = url_has_argument(uri, "xt");
		if (!btih)
		{
			ec = error_code(errors::missing_info_hash_in_uri, libtorrent_category);
			return torrent_handle();
		}

		if (btih->compare(0, 9, "urn:btih:") != 0)
		{
			ec = error_code(errors::missing_info_hash_in_uri, libtorrent_category);
			return torrent_handle();
		}

		sha1_hash info_hash;
		if (btih->size() == 40 + 9) from_hex(&(*btih)[9], 40, (char*)&info_hash[0]);
		else info_hash.assign(base32decode(btih->substr(9)));

		if (!tracker.empty()) p.tracker_url = tracker.c_str();
		p.info_hash = info_hash;
		if (!name.empty()) p.name = name.c_str();
		return ses.add_torrent(p, ec);
	}

	torrent_handle add_magnet_uri(session& ses, std::string const& uri
		, std::string const& save_path
		, storage_mode_t storage_mode
		, bool paused
		, storage_constructor_type sc
		, void* userdata)
	{
		std::string name;
		std::string tracker;

		error_code ec;
		std::string display_name = url_has_argument(uri, "dn");
		if (!display_name.empty()) name = unescape_string(display_name.c_str(), ec);
		std::string tracker_string = url_has_argument(uri, "tr");
		if (!tracker_string.empty()) tracker = unescape_string(tracker_string.c_str(), ec);
	
		std::string btih = url_has_argument(uri, "xt");
		if (btih.empty()) return torrent_handle();

		if (btih.compare(0, 9, "urn:btih:") != 0) return torrent_handle();

		sha1_hash info_hash;
		if (btih.size() == 40 + 9) from_hex(&btih[9], 40, (char*)&info_hash[0]);
		else info_hash.assign(base32decode(btih.substr(9)));

		return ses.add_torrent(tracker.empty() ? 0 : tracker.c_str(), info_hash
			, name.empty() ? 0 : name.c_str(), save_path, entry()
			, storage_mode, paused, sc, userdata);
	}

	torrent_handle add_magnet_uri(session& ses, std::string const& uri
		, std::string const& save_path
		, storage_mode_t storage_mode
		, bool paused
		, storage_constructor_type sc
		, void* userdata)
	{
		add_torrent_params params(sc);
		params.storage_mode = storage_mode;
		params.userdata = userdata;
		params.save_path = save_path;

		if (paused) params.flags |= add_torrent_params::flag_paused;
		else params.flags &= ~add_torrent_params::flag_paused;

		error_code ec;
		std::string display_name = url_has_argument(uri, "dn");
		if (!display_name.empty()) params.name = unescape_string(display_name.c_str(), ec);
		std::string tracker_string = url_has_argument(uri, "tr");
		if (!tracker_string.empty()) params.trackers.push_back(unescape_string(tracker_string.c_str(), ec));
	
		std::string btih = url_has_argument(uri, "xt");
		if (btih.empty()) return torrent_handle();

		if (btih.compare(0, 9, "urn:btih:") != 0) return torrent_handle();

		if (btih.size() == 40 + 9) from_hex(&btih[9], 40, (char*)&params.info_hash[0]);
		else params.info_hash.assign(base32decode(btih.substr(9)));

		return ses.add_torrent(params);
	}

	torrent_handle add_magnet_uri(session& ses, std::string const& uri
		, fs::path const& save_path
		, storage_mode_t storage_mode
		, bool paused
		, storage_constructor_type sc
		, void* userdata)
	{
		std::string name;
		std::string tracker;

		boost::optional<std::string> display_name = url_has_argument(uri, "dn");
		if (display_name) name = unescape_string(display_name->c_str());
		boost::optional<std::string> tracker_string = url_has_argument(uri, "tr");
		if (tracker_string) tracker = unescape_string(tracker_string->c_str());
	
		boost::optional<std::string> btih = url_has_argument(uri, "xt");
		if (!btih) return torrent_handle();

		if (btih->compare(0, 9, "urn:btih:") != 0) return torrent_handle();

		sha1_hash info_hash;
		if (btih->size() == 40 + 9) info_hash = boost::lexical_cast<sha1_hash>(btih->substr(9));
		else info_hash.assign(base32decode(btih->substr(9)));

		return ses.add_torrent(tracker.empty() ? 0 : tracker.c_str(), info_hash
			, name.empty() ? 0 : name.c_str(), save_path, entry()
			, storage_mode, paused, sc, userdata);
	}

torrent_handle add_feed_item(session& s, feed_item const& fi
	, add_torrent_params const& tp, error_code& ec)
{
	add_torrent_params p = tp;
	p.url = fi.url;
	p.uuid = fi.uuid;
	// #error figure out how to get the feed url in here
//	p.source_feed_url = ???;
	p.ti.reset();
	p.info_hash.clear();
	p.name = fi.title.c_str();
	return s.add_torrent(p, ec);
}

// proxy: 0=none, 1=socks4, 2=socks5, 3=socks5_pw 4=http 5=http_pw
void test_transfer(session& ses, boost::intrusive_ptr<torrent_info> torrent_file
	, int proxy, int port, char const* protocol, bool url_seed
	, bool chunked_encoding, bool test_ban, bool keepalive, bool proxy_peers)
{
	using namespace libtorrent;

	std::string save_path = "tmp2_web_seed";
	save_path += proxy_name[proxy];

	error_code ec;
	remove_all(save_path, ec);

	static char const* test_name[] = {"no", "SOCKS4", "SOCKS5", "SOCKS5 password", "HTTP", "HTTP password"};

	fprintf(stderr, "\n\n  ==== TESTING === proxy: %s ==== protocol: %s "
		"==== seed: %s === transfer-encoding: %s === corruption: %s "
		"==== keepalive: %s\n\n\n"
		, test_name[proxy], protocol, url_seed ? "URL seed" : "HTTP seed"
		, chunked_encoding ? "chunked": "none", test_ban ? "yes" : "no"
		, keepalive ? "yes" : "no");

	proxy_settings ps;
	
	if (proxy)
	{
		ps.port = start_proxy(proxy);
		ps.hostname = "127.0.0.1";
		ps.username = "testuser";
		ps.password = "testpass";
		ps.type = (proxy_settings::proxy_type)proxy;
		ps.proxy_peer_connections = proxy_peers;
		ses.set_proxy(ps);
	}
	else
	{
		ps.port = 0;
		ps.hostname.clear();
		ps.username.clear();
		ps.password.clear();
		ps.type = proxy_settings::none;
		ps.proxy_peer_connections = proxy_peers;
		ses.set_proxy(ps);
	}

	add_torrent_params p;
	p.flags &= ~add_torrent_params::flag_paused;
	p.flags &= ~add_torrent_params::flag_auto_managed;
	p.ti = torrent_file;
	p.save_path = save_path;
#ifndef TORRENT_NO_DEPRECATE
	p.storage_mode = storage_mode_compact;
#endif
	torrent_handle th = ses.add_torrent(p, ec);

	std::vector<announce_entry> empty;
	th.replace_trackers(empty);

	const size_type total_size = torrent_file->total_size();

	float rate_sum = 0.f;
	float ses_rate_sum = 0.f;

	cache_status cs;

	file_storage const& fs = torrent_file->files();
	int pad_file_size = 0;
	for (int i = 0; i < fs.num_files(); ++i)
	{
		file_entry f = fs.at(i);
		if (f.pad_file) pad_file_size += f.size;
	}

	peer_disconnects = 0;

	for (int i = 0; i < 40; ++i)
	{
		torrent_status s = th.status();
		session_status ss = ses.status();
		rate_sum += s.download_payload_rate;
		ses_rate_sum += ss.payload_download_rate;

		cs = ses.get_cache_status();
		if (cs.blocks_read < 1) cs.blocks_read = 1;
		if (cs.blocks_written < 1) cs.blocks_written = 1;

		print_ses_rate(i / 10.f, &s, NULL);

		print_alerts(ses, "  >>  ses", test_ban, false, false, &on_alert);

		if (test_ban && th.url_seeds().empty() && th.http_seeds().empty())
		{
			// when we don't have any web seeds left, we know we successfully banned it
			break;
		}

		// if the web seed connection is disconnected, we're going to fail
		// the test. make sure to do so quickly
		if (keepalive && peer_disconnects >= 1) break;

//.........这里部分代码省略.........