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f7a9f785 | 1 | /* Copyright (C) 2002-2016 Free Software Foundation, Inc. |
949ec764 UD |
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 | |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
949ec764 UD |
17 | |
18 | #include <errno.h> | |
19 | #include <sched.h> | |
20 | #include <string.h> | |
21 | #include <sysdep.h> | |
4442d58f | 22 | #include <sys/param.h> |
949ec764 | 23 | #include <sys/types.h> |
439ff07b | 24 | #include <shlib-compat.h> |
949ec764 UD |
25 | |
26 | ||
27 | #ifdef __NR_sched_getaffinity | |
d95453ef L |
28 | # if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4) |
29 | extern int __sched_getaffinity_new (pid_t, size_t, cpu_set_t *); | |
30 | libc_hidden_proto (__sched_getaffinity_new) | |
31 | # endif | |
32 | ||
949ec764 | 33 | int |
439ff07b | 34 | __sched_getaffinity_new (pid_t pid, size_t cpusetsize, cpu_set_t *cpuset) |
949ec764 | 35 | { |
e5dee2c8 L |
36 | int res = INLINE_SYSCALL (sched_getaffinity, 3, pid, |
37 | MIN (INT_MAX, cpusetsize), cpuset); | |
38 | if (res != -1) | |
949ec764 UD |
39 | { |
40 | /* Clean the rest of the memory the kernel didn't do. */ | |
439ff07b | 41 | memset ((char *) cpuset + res, '\0', cpusetsize - res); |
949ec764 UD |
42 | |
43 | res = 0; | |
44 | } | |
45 | return res; | |
46 | } | |
439ff07b UD |
47 | versioned_symbol (libc, __sched_getaffinity_new, sched_getaffinity, |
48 | GLIBC_2_3_4); | |
49 | ||
50 | ||
8e32efa6 | 51 | # if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4) |
d95453ef L |
52 | libc_hidden_def (__sched_getaffinity_new) |
53 | ||
439ff07b UD |
54 | int |
55 | attribute_compat_text_section | |
770c4157 | 56 | __sched_getaffinity_old (pid_t pid, cpu_set_t *cpuset) |
439ff07b UD |
57 | { |
58 | /* The old interface by default assumed a 1024 processor bitmap. */ | |
770c4157 | 59 | return __sched_getaffinity_new (pid, 128, cpuset); |
439ff07b UD |
60 | } |
61 | compat_symbol (libc, __sched_getaffinity_old, sched_getaffinity, GLIBC_2_3_3); | |
62 | # endif | |
949ec764 | 63 | #else |
2826ac7e | 64 | # include <posix/sched_getaffinity.c> |
949ec764 | 65 | #endif |