Function mpg123_sys::mpg123_replace_reader_handle

pub unsafe extern fn mpg123_replace_reader_handle(mh: *mut mpg123_handle,
                                                  r_read: unsafe extern fn(_: *mut c_void, _: *mut c_void, _: size_t) -> ssize_t,
                                                  r_lseek: unsafe extern fn(_: *mut c_void, _: off_t, _: c_int) -> off_t,
                                                  cleanup: unsafe extern fn(_: *mut c_void))
                                                  -> c_int