base/cpu.h

   1 // Copyright (c) 2011 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 #ifndef BASE_CPU_H_
   6 #define BASE_CPU_H_
   7 #pragma once
   8
   9 #include <string>
  10
  11 #include "base/base_api.h"
  12
  13 namespace base {
  14
  15 // Query information about the processor.
  16 class BASE_API CPU {
  17  public:
  18   // Constructor
  19   CPU();
  20
  21   // Accessors for CPU information.
  22   const std::string& vendor_name() const { return cpu_vendor_; }
  23   int stepping() const { return stepping_; }
  24   int model() const { return model_; }
  25   int family() const { return family_; }
  26   int type() const { return type_; }
  27   int extended_model() const { return ext_model_; }
  28   int extended_family() const { return ext_family_; }
  29   int has_mmx() const { return has_mmx_; }
  30   int has_sse() const { return has_sse_; }
  31   int has_sse2() const { return has_sse2_; }
  32   int has_sse3() const { return has_sse3_; }
  33   int has_ssse3() const { return has_ssse3_; }
  34   int has_sse41() const { return has_sse41_; }
  35   int has_sse42() const { return has_sse42_; }
  36
  37  private:
  38   // Query the processor for CPUID information.
  39   void Initialize();
  40
  41   int type_;  // process type
  42   int family_;  // family of the processor
  43   int model_;  // model of processor
  44   int stepping_;  // processor revision number
  45   int ext_model_;
  46   int ext_family_;
  47   bool has_mmx_;
  48   bool has_sse_;
  49   bool has_sse2_;
  50   bool has_sse3_;
  51   bool has_ssse3_;
  52   bool has_sse41_;
  53   bool has_sse42_;
  54   std::string cpu_vendor_;
  55 };
  56
  57 }  // namespace base
  58
  59 #endif  // BASE_CPU_H_