script_msg_q_next  319 core/ptp.c       return (script_msg_q_next(q->w) == q->r);
script_msg_q_next  327 core/ptp.c       unsigned w = script_msg_q_next(q->w);
script_msg_q_next  345 core/ptp.c       q->r = script_msg_q_next(q->r);