// this function should either be removed, or return
// reference counted handle to the torrent_info which
// forces the torrent to stay loaded while the client holds it
torrent_info const& torrent_handle::get_torrent_info() const
{
static boost::shared_ptr<const torrent_info> holder[4];
static int cursor = 0;
static std::mutex holder_mutex;
boost::shared_ptr<const torrent_info> r = torrent_file();
std::lock_guard<std::mutex> l(holder_mutex);
holder[cursor++] = r;
cursor = cursor % (sizeof(holder) / sizeof(holder[0]));
return *r;
}
PartialArchive *PartialArchive::restoreArchive(QSettings &settings, QObject *parent)
{
QStringList groupParts(settings.group().split('_'));
if (groupParts.length() < 3) return 0;
QString dir(settings.value("data_directory").toString());
if (!QDir(dir).exists()) return 0;
QString torrent_file(settings.value("torrent_file").toString());
if (!QDir(dir).exists(torrent_file)) return 0;
return new PartialArchive(groupParts[1], groupParts[2],
settings.value("download_size", "0").toString(),
torrent_file, dir, parent);
}
bool picotorrent::core::is_valid_torrent_file(const std::string &path)
{
std::ifstream torrent_file(path, std::ios::binary);
if (!torrent_file) { return false; }
std::stringstream ss;
ss << torrent_file.rdbuf();
std::string buf = ss.str();
lt::error_code ec;
lt::bdecode_node node;
lt::bdecode(&buf[0], &buf[0] + buf.size(), node, ec);
return ec ? false : true;
}
sha1_hash torrent_handle::info_hash() const
{
INVARIANT_CHECK;
const static sha1_hash empty;
TORRENT_FORWARD_RETURN(torrent_file().info_hash(), empty);
}
