1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/sys_info.h" 6 7 #include <sys/param.h> 8 #include <sys/sysctl.h> 9 10 #include "base/logging.h" 11 12 namespace base { 13 NumberOfProcessors()14int SysInfo::NumberOfProcessors() { 15 int mib[] = { CTL_HW, HW_NCPU }; 16 int ncpu; 17 size_t size = sizeof(ncpu); 18 if (sysctl(mib, 2, &ncpu, &size, NULL, 0) == -1) { 19 NOTREACHED(); 20 return 1; 21 } 22 return ncpu; 23 } 24 25 } // namespace base 26