plugin_content.py 文件源码

def __next__(self):
        # For the most part, the buffer-filling thread should prevent the need for waiting here,
        # but wait exponentially (up to about 32 seconds) for it to fill before giving up.
        log_msg("Spotify radio track buffer asked for next item", xbmc.LOGDEBUG)
        attempts = 0
        while attempts <= 5:
            self._buffer_lock.acquire()
            if len(self._buffer) <= self.MIN_BUFFER_SIZE:
                self._buffer_lock.release()
                sleep_time = pow(2, attempts)
                log_msg("Spotify radio track buffer empty, sleeping for %d seconds" % sleep_time, xbmc.LOGDEBUG)
                time.sleep(sleep_time)
                attempts += 1
            else:
                track = self._buffer.pop(0)
                self._buffer_lock.release()
                log_msg("Got track '%s' from Spotify radio track buffer" % track["id"], xbmc.LOGDEBUG)
                return track
        raise StopIteration

    # Support both Python 2.7 & Python 3.0