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// Copyright (c) 2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/sys_info.h"
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include "base/basictypes.h"
#include "base/logging.h"
namespace base {
int SysInfo::NumberOfProcessors() {
// It seems that sysconf returns the number of "logical" processors on both
// mac and linux. So we get the number of "online logical" processors.
long res = sysconf(_SC_NPROCESSORS_ONLN);
if (res == -1) {
NOTREACHED();
return 1;
}
return static_cast<int>(res);
}
} // namespace base
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