[Glibc-bsd-commits] r4564 - trunk/glibc-ports/kfreebsd/fbtl

[Petr Salinger]

Author: ps-guest
Date: 2013-06-22 08:10:58 +0000 (Sat, 22 Jun 2013)
New Revision: 4564

Added:
   trunk/glibc-ports/kfreebsd/fbtl/smp.h
Log:
smp.h from linuxthreads


Added: trunk/glibc-ports/kfreebsd/fbtl/smp.h
===================================================================
--- trunk/glibc-ports/kfreebsd/fbtl/smp.h	                        (rev 0)
+++ trunk/glibc-ports/kfreebsd/fbtl/smp.h	2013-06-22 08:10:58 UTC (rev 4564)
@@ -0,0 +1,36 @@
+/* Determine whether the host has multiple processors.  FreeBSD version.
+   Copyright (C) 1996, 2002 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <sys/sysctl.h>
+
+/* Test whether the machine has more than one processor.  */
+static inline int
+is_smp_system (void)
+{
+  /* Fetch sysctl value of "hw.ncpu".  */
+  int request[] = { CTL_HW, HW_NCPU };
+  int result;
+  size_t result_len = sizeof (result);
+
+  if (__sysctl (request, 2, &result, &result_len, NULL, 0) < 0)
+    /* Dummy result.  */
+    return 0;
+
+  return (result > 1);
+}