Function svn_ra_get_session_url 

pub unsafe extern "C" fn svn_ra_get_session_url(
    ra_session: *mut svn_ra_session_t,
    url: *mut *const c_char,
    pool: *mut apr_pool_t,
) -> *mut svn_error_t

Set @a *url to the session URL – the URL to which @a ra_session was opened or most recently reparented.

@since New in 1.5.