<br />
<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_q821m91jtg8ar38lblv41kg28m, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
<br />
<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
static int updateCanvas_retryInterval = 50;

// if makeImg returns null, it is recalled after a delay
static void updateCanvas(final ImageSurface canvas, fO makeImg) {
  awt {
    if (canvas.updating) ret;
    canvas.updating = true;
    BufferedImage img = asBufferedImage(callF(makeImg, canvas.getWidth(), canvas.getHeight()));
    if (img != null) {
      canvas.setImage(img);
      canvas.updating = false;
    } else
      awtLater(updateCanvas_retryInterval, r {
        updateCanvas(canvas, makeImg))
      });
  }
}