mariadb/mysys/my_getncpus.c
kent@mysql.com/kent-amd64.(none) 1e3237fefa Many files:
Changed header to GPL version 2 only
2006-12-27 02:23:51 +01:00

39 lines
987 B
C

/* Copyright (C) 2006 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* get the number of (online) CPUs */
#include "mysys_priv.h"
#include <unistd.h>
static int ncpus=0;
#ifdef _SC_NPROCESSORS_ONLN
int my_getncpus()
{
if (!ncpus)
ncpus= sysconf(_SC_NPROCESSORS_ONLN);
return ncpus;
}
#else
/* unknown */
int my_getncpus()
{
return 2;
}
#endif