/* Peek a message from the specified IPC channel.  */
rt_err_t rt_raw_channel_peek(rt_channel_t ch, rt_channel_msg_t data)
/* Peek a message from the specified IPC channel.  */
rt_err_t rt_raw_channel_peek(rt_channel_t ch, rt_channel_msg_t data)
{
    return _rt_raw_channel_recv_timeout(ch, data, 0);
}