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+/* $OpenBSD: sched.h,v 1.1 2017/10/15 23:40:33 guenther Exp $ */
+
+/* sched.h: POSIX 1003.1b Process Scheduling header */
+
+/*-
+ * Copyright (c) 1996, 1997
+ * HD Associates, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by HD Associates, Inc
+ * and Jukka Antero Ukkonen.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#ifndef _SCHED_H_
+#define _SCHED_H_
+
+#include <sys/types.h> /* For pid_t */
+#include <time.h> /* Per P1003.4 */
+
+/* Scheduling policies
+ */
+#define SCHED_FIFO 1
+#define SCHED_OTHER 2
+#define SCHED_RR 3
+
+struct sched_param
+{
+ int sched_priority;
+};
+
+__BEGIN_DECLS
+#if 0 /* not yet */
+int sched_setparam(pid_t, const struct sched_param *);
+int sched_getparam(pid_t, struct sched_param *);
+
+int sched_setscheduler(pid_t, int, const struct sched_param *);
+int sched_getscheduler(pid_t);
+#endif
+
+int sched_yield(void);
+int sched_get_priority_max(int);
+int sched_get_priority_min(int);
+
+#if 0 /* not yet */
+struct timespec;
+int sched_rr_get_interval(pid_t, struct timespec *);
+#endif
+__END_DECLS
+
+#endif /* _SCHED_H_ */