1/* Copyright (C) 2002-2020 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#include <errno.h>
19#include <sched.h>
20#include <string.h>
21#include <sysdep.h>
22#include <unistd.h>
23#include <sys/types.h>
24#include <shlib-compat.h>
25
26
27#ifdef __NR_sched_setaffinity
28
29extern int __sched_setaffinity_new (pid_t, size_t, const cpu_set_t *);
30libc_hidden_proto (__sched_setaffinity_new)
31
32int
33__sched_setaffinity_new (pid_t pid, size_t cpusetsize, const cpu_set_t *cpuset)
34{
35 int result = INLINE_SYSCALL (sched_setaffinity, 3, pid, cpusetsize, cpuset);
36
37#ifdef RESET_VGETCPU_CACHE
38 if (result != -1)
39 RESET_VGETCPU_CACHE ();
40#endif
41
42 return result;
43}
44libc_hidden_def (__sched_setaffinity_new)
45versioned_symbol (libc, __sched_setaffinity_new, sched_setaffinity,
46 GLIBC_2_3_4);
47
48
49# if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
50int
51attribute_compat_text_section
52__sched_setaffinity_old (pid_t pid, const cpu_set_t *cpuset)
53{
54 /* The old interface by default assumed a 1024 processor bitmap. */
55 return __sched_setaffinity_new (pid, 128, cpuset);
56}
57compat_symbol (libc, __sched_setaffinity_old, sched_setaffinity, GLIBC_2_3_3);
58# endif
59#else
60# include <posix/sched_setaffinity.c>
61#endif
62