libc
/* $Id$ */
/* Copyright (c) 2012-2014 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS System libc */
/* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 THE COPYRIGHT
* HOLDER 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. */
#include "unistd.h"
#include "syscalls.h"
#include "sched.h"
#include "errno.h"
/* functions */
/* sched_get_priority_max */
int sched_get_priority_max(int policy)
{
#ifdef _SC_SCHED_PRI_MAX
return sysconf(_SC_SCHED_PRI_MAX);
#else
errno = ENOSYS;
return -1;
#endif
}
/* sched_get_priority_min */
int sched_get_priority_min(int policy)
{
#ifdef _SC_SCHED_PRI_MIN
return sysconf(_SC_SCHED_PRI_MIN);
#else
errno = ENOSYS;
return -1;
#endif
}
/* sched_getparam */
#ifndef SYS_sched_getparam
int sched_getparam(pid_t pid, struct sched_param * param)
{
errno = ENOSYS;
return -1;
}
#endif
/* sched_getscheduler */
#ifndef SYS_sched_getscheduler
int sched_getscheduler(pid_t pid)
{
errno = ENOSYS;
return -1;
}
#endif
/* sched_rr_get_interval */
int sched_rr_get_interval(pid_t pid, struct timespec * interval)
{
#ifdef _SC_SCHED_RT_TS
long l;
if((l = sysconf(_SC_SCHED_RT_TS)) < 0)
return -1;
interval->tv_nsec = l * 1000;
interval->tv_sec = interval->tv_nsec / 1000000000;
interval->tv_nsec -= (interval->tv_sec * 1000000000);
return 0;
#else
errno = ENOSYS;
return -1;
#endif
}
/* sched_setparam */
#ifndef SYS_sched_setparam
int sched_setparam(pid_t pid, const struct sched_param * param)
{
errno = ENOSYS;
return -1;
}
#endif
/* sched_setscheduler */
#ifndef SYS_sched_setscheduler
int sched_setscheduler(pid_t pid, int policy, const struct sched_param * param)
{
errno = ENOSYS;
return -1;
}
#endif
/* sched_yield */
#ifndef SYS_sched_yield
int sched_yield(void)
{
errno = ENOSYS;
return -1;
}
#endif