|
Packit |
6c4009 |
/* Copyright (C) 2002-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#include <errno.h>
|
|
Packit |
6c4009 |
#include <sched.h>
|
|
Packit |
6c4009 |
#include <string.h>
|
|
Packit |
6c4009 |
#include <sysdep.h>
|
|
Packit |
6c4009 |
#include <sys/param.h>
|
|
Packit |
6c4009 |
#include <sys/types.h>
|
|
Packit |
6c4009 |
#include <shlib-compat.h>
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
#ifdef __NR_sched_getaffinity
|
|
Packit |
6c4009 |
# if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
|
|
Packit |
6c4009 |
extern int __sched_getaffinity_new (pid_t, size_t, cpu_set_t *);
|
|
Packit |
6c4009 |
libc_hidden_proto (__sched_getaffinity_new)
|
|
Packit |
6c4009 |
# endif
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
int
|
|
Packit |
6c4009 |
__sched_getaffinity_new (pid_t pid, size_t cpusetsize, cpu_set_t *cpuset)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
int res = INLINE_SYSCALL (sched_getaffinity, 3, pid,
|
|
Packit |
6c4009 |
MIN (INT_MAX, cpusetsize), cpuset);
|
|
Packit |
6c4009 |
if (res != -1)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
/* Clean the rest of the memory the kernel didn't do. */
|
|
Packit |
6c4009 |
memset ((char *) cpuset + res, '\0', cpusetsize - res);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
res = 0;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
return res;
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
versioned_symbol (libc, __sched_getaffinity_new, sched_getaffinity,
|
|
Packit |
6c4009 |
GLIBC_2_3_4);
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
# if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
|
|
Packit |
6c4009 |
libc_hidden_def (__sched_getaffinity_new)
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
int
|
|
Packit |
6c4009 |
attribute_compat_text_section
|
|
Packit |
6c4009 |
__sched_getaffinity_old (pid_t pid, cpu_set_t *cpuset)
|
|
Packit |
6c4009 |
{
|
|
Packit |
6c4009 |
/* The old interface by default assumed a 1024 processor bitmap. */
|
|
Packit |
6c4009 |
return __sched_getaffinity_new (pid, 128, cpuset);
|
|
Packit |
6c4009 |
}
|
|
Packit |
6c4009 |
compat_symbol (libc, __sched_getaffinity_old, sched_getaffinity, GLIBC_2_3_3);
|
|
Packit |
6c4009 |
# endif
|
|
Packit |
6c4009 |
#else
|
|
Packit |
6c4009 |
# include <posix/sched_getaffinity.c>
|
|
Packit |
6c4009 |
#endif
|