2001-03-21 22:00:29 +08:00
|
|
|
/* sched.h: scheduler interface for Cygwin
|
|
|
|
|
|
|
|
|
|
Copyright 2001 Red Hat, Inc.
|
|
|
|
|
|
|
|
|
|
Written by Robert Collins <rbtcollins@hotmail.com>
|
|
|
|
|
|
|
|
|
|
This file is part of Cygwin.
|
|
|
|
|
|
|
|
|
|
This software is a copyrighted work licensed under the terms of the
|
|
|
|
|
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
|
|
|
|
|
details. */
|
|
|
|
|
|
|
|
|
|
/* Written from the opengroup specifications */
|
|
|
|
|
|
|
|
|
|
#ifndef _SCHED_H
|
|
|
|
|
#define _SCHED_H
|
|
|
|
|
#include <time.h>
|
|
|
|
|
|
|
|
|
|
/* we return -1 and set errno on failure */
|
|
|
|
|
#define SCHED_FIFO 1
|
|
|
|
|
#define SCHED_RR 2
|
|
|
|
|
#define SCHED_OTHER 3
|
|
|
|
|
|
|
|
|
|
struct sched_param
|
|
|
|
|
{
|
|
|
|
|
int sched_priority;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
|
extern "C" {
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
/* max priority for policy */
|
2001-04-12 12:04:53 +08:00
|
|
|
int sched_get_priority_max (int);
|
2001-03-21 22:00:29 +08:00
|
|
|
/* min priority for policy */
|
2001-04-12 12:04:53 +08:00
|
|
|
int sched_get_priority_min (int);
|
2001-03-21 22:00:29 +08:00
|
|
|
/* get sched params for process */
|
2001-04-12 12:04:53 +08:00
|
|
|
int sched_getparam (pid_t, struct sched_param *);
|
2001-03-21 22:00:29 +08:00
|
|
|
/* get the scheduler for pid */
|
2001-04-12 12:04:53 +08:00
|
|
|
int sched_getscheduler (pid_t);
|
2001-03-21 22:00:29 +08:00
|
|
|
/* get the time quantum for pid */
|
2001-04-12 12:04:53 +08:00
|
|
|
int sched_rr_get_interval (pid_t, struct timespec *);
|
2001-03-21 22:00:29 +08:00
|
|
|
/* set the scheduling parameters */
|
2001-04-12 12:04:53 +08:00
|
|
|
int sched_setparam (pid_t, const struct sched_param *);
|
2001-03-21 22:00:29 +08:00
|
|
|
/* set the scheduler */
|
2001-04-12 12:04:53 +08:00
|
|
|
int sched_setscheduler (pid_t, int, const struct sched_param *);
|
2001-03-21 22:00:29 +08:00
|
|
|
/* yield the cpu */
|
2001-04-12 12:04:53 +08:00
|
|
|
int sched_yield (void);
|
|
|
|
|
|
|
|
|
|
#if defined(__INSIDE_CYGWIN__)
|
|
|
|
|
/* These are private helper functions used to calculate scheduler settings and
|
|
|
|
|
* validate parameters */
|
|
|
|
|
|
|
|
|
|
/* check parameters for validity */
|
|
|
|
|
int valid_sched_parameters(const struct sched_param *);
|
|
|
|
|
/* set a single thread's priority */
|
|
|
|
|
int sched_set_thread_priority(HANDLE thread, int priority);
|
|
|
|
|
|
|
|
|
|
#endif /* INSIDE_CYGWIN */
|
2001-03-21 22:00:29 +08:00
|
|
|
|
|
|
|
|
#ifdef __cplusplus
|
|
|
|
|
}
|
|
|
|
|
#endif
|
|
|
|
|
#endif /* _SCHED_H */
|
