2001-03-21 15:00:29 +01:00
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/* sched.h: scheduler interface for Cygwin
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Copyright 2001 Red Hat, Inc.
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Written by Robert Collins <rbtcollins@hotmail.com>
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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/* Written from the opengroup specifications */
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#ifndef _SCHED_H
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#define _SCHED_H
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#include <time.h>
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/* we return -1 and set errno on failure */
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#define SCHED_FIFO 1
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#define SCHED_RR 2
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#define SCHED_OTHER 3
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struct sched_param
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{
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int sched_priority;
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};
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* max priority for policy */
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2001-04-12 06:04:53 +02:00
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int sched_get_priority_max (int);
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2001-03-21 15:00:29 +01:00
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/* min priority for policy */
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2001-04-12 06:04:53 +02:00
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int sched_get_priority_min (int);
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2001-03-21 15:00:29 +01:00
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/* get sched params for process */
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2001-04-12 06:04:53 +02:00
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int sched_getparam (pid_t, struct sched_param *);
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2001-03-21 15:00:29 +01:00
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/* get the scheduler for pid */
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2001-04-12 06:04:53 +02:00
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int sched_getscheduler (pid_t);
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2001-03-21 15:00:29 +01:00
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/* get the time quantum for pid */
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2001-04-12 06:04:53 +02:00
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int sched_rr_get_interval (pid_t, struct timespec *);
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2001-03-21 15:00:29 +01:00
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/* set the scheduling parameters */
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2001-04-12 06:04:53 +02:00
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int sched_setparam (pid_t, const struct sched_param *);
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2001-03-21 15:00:29 +01:00
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/* set the scheduler */
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2001-04-12 06:04:53 +02:00
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int sched_setscheduler (pid_t, int, const struct sched_param *);
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2001-03-21 15:00:29 +01:00
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/* yield the cpu */
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2001-04-12 06:04:53 +02:00
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int sched_yield (void);
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#if defined(__INSIDE_CYGWIN__)
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/* These are private helper functions used to calculate scheduler settings and
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* validate parameters */
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/* check parameters for validity */
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int valid_sched_parameters(const struct sched_param *);
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/* set a single thread's priority */
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int sched_set_thread_priority(HANDLE thread, int priority);
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#endif /* INSIDE_CYGWIN */
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2001-03-21 15:00:29 +01:00
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SCHED_H */
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