Function gio_sys::g_data_input_stream_read_upto_async

pub unsafe extern "C" fn g_data_input_stream_read_upto_async(
    stream: *mut GDataInputStream, 
    stop_chars: *const c_char, 
    stop_chars_len: ssize_t, 
    io_priority: c_int, 
    cancellable: *mut GCancellable, 
    callback: GAsyncReadyCallback, 
    user_data: gpointer
)