2 * Copyright (c) 1994, Henrik Vestergaard Draboel
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6 * modification, are permitted provided that the following conditions
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15 * This product includes software developed by (name).
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34 #ifndef _SYS_RTPRIO_H_
35 #define _SYS_RTPRIO_H_
38 * Process realtime-priority specifications to rtprio.
43 #define RTP_PRIO_REALTIME 0
44 #define RTP_PRIO_NORMAL 1
45 #define RTP_PRIO_IDLE 2
47 /* RTP_PRIO_FIFO is POSIX.1B SCHED_FIFO.
50 #define RTP_PRIO_FIFO_BIT 4
51 #define RTP_PRIO_FIFO (RTP_PRIO_REALTIME | RTP_PRIO_FIFO_BIT)
52 #define RTP_PRIO_BASE(P) ((P) & ~RTP_PRIO_FIFO_BIT)
53 #define RTP_PRIO_IS_REALTIME(P) (RTP_PRIO_BASE(P) == RTP_PRIO_REALTIME)
54 #define RTP_PRIO_NEED_RR(P) ((P) != RTP_PRIO_FIFO)
57 #define RTP_PRIO_MIN 0 /* Highest priority */
58 #define RTP_PRIO_MAX 31 /* Lowest priority */
61 * rtprio() syscall functions
74 #include <sys/cdefs.h>
77 int rtprio __P((int, pid_t, struct rtprio *));
80 #endif /* !_SYS_RTPRIO_H_ */