The Tor Browser: security/sandbox/chromium/base/cpu.h@925c144e1f1f

     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.

     5 #ifndef BASE_CPU_H_

     6 #define BASE_CPU_H_

     8 #include <string>

    10 #include "base/base_export.h"

    12 namespace base {

    14 // Query information about the processor.

    15 class BASE_EXPORT CPU {

    16  public:

    17   // Constructor

    18   CPU();

    20   enum IntelMicroArchitecture {

    21     PENTIUM,

    22     SSE,

    23     SSE2,

    24     SSE3,

    25     SSSE3,

    26     SSE41,

    27     SSE42,

    28     AVX,

    29     MAX_INTEL_MICRO_ARCHITECTURE

    30   };

    32   // Accessors for CPU information.

    33   const std::string& vendor_name() const { return cpu_vendor_; }

    34   int signature() const { return signature_; }

    35   int stepping() const { return stepping_; }

    36   int model() const { return model_; }

    37   int family() const { return family_; }

    38   int type() const { return type_; }

    39   int extended_model() const { return ext_model_; }

    40   int extended_family() const { return ext_family_; }

    41   bool has_mmx() const { return has_mmx_; }

    42   bool has_sse() const { return has_sse_; }

    43   bool has_sse2() const { return has_sse2_; }

    44   bool has_sse3() const { return has_sse3_; }

    45   bool has_ssse3() const { return has_ssse3_; }

    46   bool has_sse41() const { return has_sse41_; }

    47   bool has_sse42() const { return has_sse42_; }

    48   bool has_avx() const { return has_avx_; }

    49   bool has_non_stop_time_stamp_counter() const {

    50     return has_non_stop_time_stamp_counter_;

    51   }

    52   IntelMicroArchitecture GetIntelMicroArchitecture() const;

    53   const std::string& cpu_brand() const { return cpu_brand_; }

    55  private:

    56   // Query the processor for CPUID information.

    57   void Initialize();

    59   int signature_;  // raw form of type, family, model, and stepping

    60   int type_;  // process type

    61   int family_;  // family of the processor

    62   int model_;  // model of processor

    63   int stepping_;  // processor revision number

    64   int ext_model_;

    65   int ext_family_;

    66   bool has_mmx_;

    67   bool has_sse_;

    68   bool has_sse2_;

    69   bool has_sse3_;

    70   bool has_ssse3_;

    71   bool has_sse41_;

    72   bool has_sse42_;

    73   bool has_avx_;

    74   bool has_non_stop_time_stamp_counter_;

    75   std::string cpu_vendor_;

    76   std::string cpu_brand_;

    77 };

    79 }  // namespace base

    81 #endif  // BASE_CPU_H_

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