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1/* Determine calling thread's scheduling parameters. Linux version.
2 Copyright (C) 2014-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Library General Public License for more details.
14
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If
17 not, see <http://www.gnu.org/licenses/>. */
18
19#include <sysdep.h>
20
21/* This should fill in PD->schedpolicy if PD->flags does not contain
22 ATTR_FLAG_POLICY_SET, and set it; and PD->schedparam if PD->flags does
23 not contain ATTR_FLAG_SCHED_SET, and set it. It won't be called at all
24 if both bits are already set. */
25
26static void
27collect_default_sched (struct pthread *pd)
28{
29 INTERNAL_SYSCALL_DECL (scerr);
30
31 if ((pd->flags & ATTR_FLAG_POLICY_SET) == 0)
32 {
33 pd->schedpolicy = INTERNAL_SYSCALL (sched_getscheduler, scerr, 1, 0);
34 pd->flags |= ATTR_FLAG_POLICY_SET;
35 }
36
37 if ((pd->flags & ATTR_FLAG_SCHED_SET) == 0)
38 {
39 INTERNAL_SYSCALL (sched_getparam, scerr, 2, 0, &pd->schedparam);
40 pd->flags |= ATTR_FLAG_SCHED_SET;
41 }
42}
43

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