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/* Copyright (C) 2013 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 Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <errno.h>
#include <limits.h>
#include <pthreadP.h>
#include <string.h>
#include <sysdep.h>
#include <sys/param.h>
#include <sys/types.h>
#include <shlib-compat.h>
#include "../cpuset-kern.h"
int
__pthread_getaffinity_new (pthread_t th, size_t cpusetsize, cpu_set_t *cpuset)
{
const struct pthread *pd = (const struct pthread *) th;
int64_t id = pd->tid;
int res;
if (cpusetsize > sizeof(cpu_set_t))
{
/* Clean the rest of the memory the kernel won't do. */
memset ((char *) cpuset + sizeof(cpu_set_t), '\0', cpusetsize - sizeof(cpu_set_t));
cpusetsize = sizeof(cpu_set_t);
}
res = INLINE_SYSCALL (cpuset_getaffinity, 5, CPU_LEVEL_WHICH,
CPU_WHICH_TID, id, cpusetsize, cpuset);
if (res == 0)
return 0;
if (errno == ERANGE)
{
return EINVAL;
}
return errno;
}
strong_alias (__pthread_getaffinity_new, __pthread_getaffinity_np)
versioned_symbol (libpthread, __pthread_getaffinity_new,
pthread_getaffinity_np, GLIBC_2_3_4);
#if SHLIB_COMPAT (libpthread, GLIBC_2_3_3, GLIBC_2_3_4)
/* The old interface have not been really exposed */
strong_alias (__pthread_getaffinity_new, __pthread_getaffinity_old)
compat_symbol (libpthread, __pthread_getaffinity_old, pthread_getaffinity_np,
GLIBC_2_3_3);
#endif
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