203796bc77e12ff18bbde47f41ef87c6821f49a1
1 /* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
5 * Copyright (C) 2012 Data Differential, http://datadifferential.com/
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 3 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <libtest/common.h>
28 size_t number_of_cpus()
30 size_t number_of_cpu
= 1;
31 #ifdef TARGET_OS_LINUX
32 number_of_cpu
= sysconf(_SC_NPROCESSORS_ONLN
);
33 #elif TARGET_OS_OSX || TARGET_OS_FREEBSD
35 size_t len
= sizeof(number_of_cpu
);
37 /* set the mib for hw.ncpu */
39 mib
[1] = HW_AVAILCPU
; // alternatively, try HW_NCPU;
41 /* get the number of CPUs from the system */
42 sysctl(mib
, 2, &number_of_cpu
, &len
, NULL
, 0);
44 if (number_of_cpu
< 1)
47 sysctl(mib
, 2, &number_of_cpu
, &len
, NULL
, 0 );
49 if (number_of_cpu
< 1 )
59 } // namespace libtest