C++ lazy_entry::dict_find_int_value方法代码示例

	// check if the fastresume data is up to date
	// if it is, use it and return true. If it 
	// isn't return false and the full check
	// will be run
	int piece_manager::check_fastresume(
		lazy_entry const& rd, error_code& error)
	{
		mutex::scoped_lock lock(m_mutex);

		INVARIANT_CHECK;

		TORRENT_ASSERT(m_files.piece_length() > 0);
		
		m_current_slot = 0;

		// if we don't have any resume data, return
		if (rd.type() == lazy_entry::none_t) return check_no_fastresume(error);

		if (rd.type() != lazy_entry::dict_t)
		{
			error = errors::not_a_dictionary;
			return check_no_fastresume(error);
		}

		int block_size = (std::min)(16 * 1024, m_files.piece_length());
		int blocks_per_piece = int(rd.dict_find_int_value("blocks per piece", -1));
		if (blocks_per_piece != -1
			&& blocks_per_piece != m_files.piece_length() / block_size)
		{
			error = errors::invalid_blocks_per_piece;
			return check_no_fastresume(error);
		}

		if (!m_storage->verify_resume_data(rd, error))
			return check_no_fastresume(error);

		return check_init_storage(error);
	}

	void http_tracker_connection::parse(int status_code, lazy_entry const& e)
	{
		boost::shared_ptr<request_callback> cb = requester();
		if (!cb) return;

		int interval = int(e.dict_find_int_value("interval", 1800));
		int min_interval = int(e.dict_find_int_value("min interval", 60));

		std::string trackerid;
		lazy_entry const* tracker_id = e.dict_find_string("tracker id");
		if (tracker_id)
			trackerid = tracker_id->string_value();
		// parse the response
		lazy_entry const* failure = e.dict_find_string("failure reason");
		if (failure)
		{
			fail(error_code(errors::tracker_failure), status_code
				, failure->string_value().c_str(), interval, min_interval);
			return;
		}

		lazy_entry const* warning = e.dict_find_string("warning message");
		if (warning)
			cb->tracker_warning(tracker_req(), warning->string_value());

		std::vector<peer_entry> peer_list;

		if (tracker_req().kind == tracker_request::scrape_request)
		{
			std::string ih = tracker_req().info_hash.to_string();

			lazy_entry const* files = e.dict_find_dict("files");
			if (files == 0)
			{
				fail(error_code(errors::invalid_files_entry), -1, ""
					, interval, min_interval);
				return;
			}

			lazy_entry const* scrape_data = files->dict_find_dict(ih.c_str());
			if (scrape_data == 0)
			{
				fail(error_code(errors::invalid_hash_entry), -1, ""
					, interval, min_interval);
				return;
			}
			int complete = int(scrape_data->dict_find_int_value("complete", -1));
			int incomplete = int(scrape_data->dict_find_int_value("incomplete", -1));
			int downloaded = int(scrape_data->dict_find_int_value("downloaded", -1));
			int downloaders = int(scrape_data->dict_find_int_value("downloaders", -1));
			cb->tracker_scrape_response(tracker_req(), complete
				, incomplete, downloaded, downloaders);
			return;
		}

		lazy_entry const* peers_ent = e.dict_find("peers");
		if (peers_ent && peers_ent->type() == lazy_entry::string_t)
		{
			char const* peers = peers_ent->string_ptr();
			int len = peers_ent->string_length();
			for (int i = 0; i < len; i += 6)
			{
				if (len - i < 6) break;

				peer_entry p;
				p.pid.clear();
				error_code ec;
				p.ip = detail::read_v4_address(peers).to_string(ec);
				p.port = detail::read_uint16(peers);
				if (ec) continue;
				peer_list.push_back(p);
			}
		}
		else if (peers_ent && peers_ent->type() == lazy_entry::list_t)
		{
			int len = peers_ent->list_size();
			for (int i = 0; i < len; ++i)
			{
				peer_entry p;
				if (!extract_peer_info(*peers_ent->list_at(i), p)) return;
				peer_list.push_back(p);
			}
		}
		else
		{
			peers_ent = 0;
		}

#if TORRENT_USE_IPV6
		lazy_entry const* ipv6_peers = e.dict_find_string("peers6");
		if (ipv6_peers)
		{
			char const* peers = ipv6_peers->string_ptr();
			int len = ipv6_peers->string_length();
			for (int i = 0; i < len; i += 18)
			{
				if (len - i < 18) break;

				peer_entry p;
				p.pid.clear();
//.........这里部分代码省略.........