aboutsummaryrefslogtreecommitdiff
path: root/sysdeps/unix/sysv/linux/sched_getcpu.c
blob: d0c0132eb9a2af604366f2edff1e855f780a6530 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
/* Copyright (C) 2007 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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <sched.h>
#include <sysdep.h>


int
sched_getcpu (void)
{
#ifdef __NR_getcpu
  unsigned int cpu;
  INTERNAL_SYSCALL_DECL (err);
  int r = INTERNAL_SYSCALL (getcpu, err, &cpu, NULL, NULL);

  return (INTERNAL_SYSCALL_ERROR (r, err)
	  ? INTERNAL_SYSCALL_ERRNO (r, err) : cpu);
#else
  __set_errno (ENOSYS);
  return -1;
#endif
}