Move sched_attr struct and syscall definitions into header file
So that we can re-use them in other files. Signed-off-by: Qais Yousef <qais.yousef@arm.com>
This commit is contained in:
Qais Yousef
parent
ff21f476f8
commit
ee3f4a3dfc
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@ -34,83 +34,8 @@
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#include "closestream.h"
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#include "strutils.h"
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#include "procutils.h"
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#include "sched_attr.h"
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/* the SCHED_BATCH is supported since Linux 2.6.16
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* -- temporary workaround for people with old glibc headers
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*/
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#if defined (__linux__) && !defined(SCHED_BATCH)
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# define SCHED_BATCH 3
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#endif
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/* the SCHED_IDLE is supported since Linux 2.6.23
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* commit id 0e6aca43e08a62a48d6770e9a159dbec167bf4c6
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* -- temporary workaround for people with old glibc headers
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*/
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#if defined (__linux__) && !defined(SCHED_IDLE)
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# define SCHED_IDLE 5
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#endif
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/* flag by sched_getscheduler() */
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#if defined(__linux__) && !defined(SCHED_RESET_ON_FORK)
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# define SCHED_RESET_ON_FORK 0x40000000
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#endif
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/* flag by sched_getattr() */
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#if defined(__linux__) && !defined(SCHED_FLAG_RESET_ON_FORK)
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# define SCHED_FLAG_RESET_ON_FORK 0x01
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#endif
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#if defined (__linux__)
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# include <sys/syscall.h>
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#endif
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/* usable kernel-headers, but old glibc-headers */
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#if defined (__linux__) && !defined(SYS_sched_setattr) && defined(__NR_sched_setattr)
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# define SYS_sched_setattr __NR_sched_setattr
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#endif
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#if defined (__linux__) && !defined(SYS_sched_getattr) && defined(__NR_sched_getattr)
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# define SYS_sched_getattr __NR_sched_getattr
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#endif
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#if defined (__linux__) && !defined(HAVE_SCHED_SETATTR) && defined(SYS_sched_setattr)
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# define HAVE_SCHED_SETATTR
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struct sched_attr {
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uint32_t size;
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uint32_t sched_policy;
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uint64_t sched_flags;
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/* SCHED_NORMAL, SCHED_BATCH */
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int32_t sched_nice;
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/* SCHED_FIFO, SCHED_RR */
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uint32_t sched_priority;
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/* SCHED_DEADLINE (nsec) */
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uint64_t sched_runtime;
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uint64_t sched_deadline;
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uint64_t sched_period;
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};
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static int sched_setattr(pid_t pid, const struct sched_attr *attr, unsigned int flags)
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{
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return syscall(SYS_sched_setattr, pid, attr, flags);
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}
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static int sched_getattr(pid_t pid, struct sched_attr *attr, unsigned int size, unsigned int flags)
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{
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return syscall(SYS_sched_getattr, pid, attr, size, flags);
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}
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#endif
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/* the SCHED_DEADLINE is supported since Linux 3.14
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* commit id aab03e05e8f7e26f51dee792beddcb5cca9215a5
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* -- sched_setattr() is required for this policy!
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*/
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#if defined (__linux__) && !defined(SCHED_DEADLINE) && defined(HAVE_SCHED_SETATTR)
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# define SCHED_DEADLINE 6
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#endif
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/* control struct */
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struct chrt_ctl {
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@ -0,0 +1,97 @@
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License, version 2, as
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* published by the Free Software Foundation
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright (C) 2004 Robert Love
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*/
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#ifndef UTIL_LINUX_SCHED_ATTR_H
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#define UTIL_LINUX_SCHED_ATTR_H
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/* the SCHED_BATCH is supported since Linux 2.6.16
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* -- temporary workaround for people with old glibc headers
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*/
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#if defined (__linux__) && !defined(SCHED_BATCH)
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# define SCHED_BATCH 3
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#endif
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/* the SCHED_IDLE is supported since Linux 2.6.23
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* commit id 0e6aca43e08a62a48d6770e9a159dbec167bf4c6
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* -- temporary workaround for people with old glibc headers
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*/
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#if defined (__linux__) && !defined(SCHED_IDLE)
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# define SCHED_IDLE 5
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#endif
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/* flag by sched_getscheduler() */
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#if defined(__linux__) && !defined(SCHED_RESET_ON_FORK)
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# define SCHED_RESET_ON_FORK 0x40000000
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#endif
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/* flag by sched_getattr() */
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#if defined(__linux__) && !defined(SCHED_FLAG_RESET_ON_FORK)
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# define SCHED_FLAG_RESET_ON_FORK 0x01
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#endif
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#if defined (__linux__)
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# include <sys/syscall.h>
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#endif
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/* usable kernel-headers, but old glibc-headers */
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#if defined (__linux__) && !defined(SYS_sched_setattr) && defined(__NR_sched_setattr)
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# define SYS_sched_setattr __NR_sched_setattr
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#endif
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#if defined (__linux__) && !defined(SYS_sched_getattr) && defined(__NR_sched_getattr)
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# define SYS_sched_getattr __NR_sched_getattr
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#endif
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#if defined (__linux__) && !defined(HAVE_SCHED_SETATTR) && defined(SYS_sched_setattr)
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# define HAVE_SCHED_SETATTR
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struct sched_attr {
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uint32_t size;
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uint32_t sched_policy;
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uint64_t sched_flags;
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/* SCHED_NORMAL, SCHED_BATCH */
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int32_t sched_nice;
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/* SCHED_FIFO, SCHED_RR */
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uint32_t sched_priority;
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/* SCHED_DEADLINE (nsec) */
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uint64_t sched_runtime;
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uint64_t sched_deadline;
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uint64_t sched_period;
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};
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static int sched_setattr(pid_t pid, const struct sched_attr *attr, unsigned int flags)
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{
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return syscall(SYS_sched_setattr, pid, attr, flags);
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}
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static int sched_getattr(pid_t pid, struct sched_attr *attr, unsigned int size, unsigned int flags)
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{
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return syscall(SYS_sched_getattr, pid, attr, size, flags);
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}
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#endif
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/* the SCHED_DEADLINE is supported since Linux 3.14
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* commit id aab03e05e8f7e26f51dee792beddcb5cca9215a5
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* -- sched_setattr() is required for this policy!
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*/
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#if defined (__linux__) && !defined(SCHED_DEADLINE) && defined(HAVE_SCHED_SETATTR)
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# define SCHED_DEADLINE 6
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#endif
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#endif /* UTIL_LINUX_SCHED_ATTR_H */
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