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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 <alloca.h>
#include <errno.h>
#include <pthreadP.h>
#include <sysdep.h>
#include <sys/types.h>
#include <shlib-compat.h>
#include "../cpuset-kern.h"
size_t __kernel_cpumask_size attribute_hidden;
/* Determine the current affinity. As a side affect we learn
about the size of the cpumask_t in the kernel. */
int
__determine_cpumask_size (pid_t tid)
{
/* not yet dynamical */
__kernel_cpumask_size = sizeof(cpu_set_t);
return 0;
}
int
__pthread_setaffinity_new (pthread_t th, size_t cpusetsize,
const cpu_set_t *cpuset)
{
const struct pthread *pd = (const struct pthread *) th;
int64_t id = pd->tid;
int res;
res = INLINE_SYSCALL (cpuset_setaffinity, 5, CPU_LEVEL_WHICH,
CPU_WHICH_TID, id, cpusetsize, cpuset);
if (res == 0)
return 0;
if ((errno == ERANGE) || (errno == EDEADLK))
{
return EINVAL;
}
return errno;
}
versioned_symbol (libpthread, __pthread_setaffinity_new,
pthread_setaffinity_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_setaffinity_new, __pthread_setaffinity_old)
compat_symbol (libpthread, __pthread_setaffinity_old, pthread_setaffinity_np,
GLIBC_2_3_3);
#endif
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