base/cpu.h

   1 // Copyright (c) 2012 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
   8 #include <string>
   9
  10 #include "base/base_export.h"
  11
  12 namespace base {
  13
  14 // Query information about the processor.
  15 class BASE_EXPORT CPU {
  16  public:
  17   // Constructor
  18   CPU();
  19
  20   // Accessors for CPU information.
  21   const std::string& vendor_name() const { return cpu_vendor_; }
  22   int stepping() const { return stepping_; }
  23   int model() const { return model_; }
  24   int family() const { return family_; }
  25   int type() const { return type_; }
  26   int extended_model() const { return ext_model_; }
  27   int extended_family() const { return ext_family_; }
  28   bool has_mmx() const { return has_mmx_; }
  29   bool has_sse() const { return has_sse_; }
  30   bool has_sse2() const { return has_sse2_; }
  31   bool has_sse3() const { return has_sse3_; }
  32   bool has_ssse3() const { return has_ssse3_; }
  33   bool has_sse41() const { return has_sse41_; }
  34   bool has_sse42() const { return has_sse42_; }
  35   const std::string& cpu_brand() const { return cpu_brand_; }
  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   std::string cpu_brand_;
  56 };
  57
  58 }  // namespace base
  59
  60 #endif  // BASE_CPU_H_