* correctly).
*
* @param xfer: the Xfer object
+ * @param offset: the offset to start the transfer from (must be 0)
+ * @param size: the Xfer object: the number of bytes to transfer.
*/
-void xfer_start(Xfer *xfer);
+void xfer_start(Xfer *xfer, gint64 offset, gint64 size);
/* Abort a running transfer. This essentially tells the source to stop
* producing data and allows the remainder of the transfer to "drain". Thus