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glibc/sysdeps/unix/sysv/linux/default-sched.h
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/* Determine calling thread's scheduling parameters. Linux version. | |
Copyright (C) 2014-2016 Free Software Foundation, Inc. | |
This file is part of the GNU C Library. | |
The GNU C Library is free software; you can redistribute it and/or | |
modify it under the terms of the GNU Library General Public License as | |
published by the Free Software Foundation; either version 2 of the | |
License, or (at your option) any later version. | |
The GNU C Library is distributed in the hope that it will be useful, | |
but WITHOUT ANY WARRANTY; without even the implied warranty of | |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
Library General Public License for more details. | |
You should have received a copy of the GNU Library General Public | |
License along with the GNU C Library; see the file COPYING.LIB. If | |
not, see <http://www.gnu.org/licenses/>. */ | |
#include <sysdep.h> | |
/* This should fill in PD->schedpolicy if PD->flags does not contain | |
ATTR_FLAG_POLICY_SET, and set it; and PD->schedparam if PD->flags does | |
not contain ATTR_FLAG_SCHED_SET, and set it. It won't be called at all | |
if both bits are already set. */ | |
static void | |
collect_default_sched (struct pthread *pd) | |
{ | |
INTERNAL_SYSCALL_DECL (scerr); | |
if ((pd->flags & ATTR_FLAG_POLICY_SET) == 0) | |
{ | |
pd->schedpolicy = INTERNAL_SYSCALL (sched_getscheduler, scerr, 1, 0); | |
pd->flags |= ATTR_FLAG_POLICY_SET; | |
} | |
if ((pd->flags & ATTR_FLAG_SCHED_SET) == 0) | |
{ | |
INTERNAL_SYSCALL (sched_getparam, scerr, 2, 0, &pd->schedparam); | |
pd->flags |= ATTR_FLAG_SCHED_SET; | |
} | |
} |