| // Copyright 2013 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 "extensions/browser/api/system_cpu/cpu_info_provider.h" |
| |
| #include "base/sys_info.h" |
| |
| namespace extensions { |
| |
| using api::system_cpu::CpuInfo; |
| |
| // Static member intialization. |
| base::LazyInstance<scoped_refptr<CpuInfoProvider> > CpuInfoProvider::provider_ = |
| LAZY_INSTANCE_INITIALIZER; |
| |
| CpuInfoProvider::CpuInfoProvider() { |
| } |
| |
| CpuInfoProvider::~CpuInfoProvider() { |
| } |
| |
| void CpuInfoProvider::InitializeForTesting( |
| scoped_refptr<CpuInfoProvider> provider) { |
| DCHECK(provider.get() != NULL); |
| provider_.Get() = provider; |
| } |
| |
| bool CpuInfoProvider::QueryInfo() { |
| info_.num_of_processors = base::SysInfo::NumberOfProcessors(); |
| info_.arch_name = base::SysInfo::OperatingSystemArchitecture(); |
| info_.model_name = base::SysInfo::CPUModelName(); |
| info_.features = GetFeatures(); |
| |
| info_.processors.clear(); |
| // Fill in the correct number of uninitialized ProcessorInfos. |
| for (int i = 0; i < info_.num_of_processors; ++i) |
| info_.processors.push_back(api::system_cpu::ProcessorInfo()); |
| // Initialize the ProcessorInfos, or return an empty array if that fails. |
| if (!QueryCpuTimePerProcessor(&info_.processors)) |
| info_.processors.clear(); |
| return true; |
| } |
| |
| std::vector<std::string> CpuInfoProvider::GetFeatures() const { |
| std::vector<std::string> features; |
| // These are the feature codes used by /proc/cpuinfo on Linux. |
| if (cpu_.has_mmx()) |
| features.push_back("mmx"); |
| if (cpu_.has_sse()) |
| features.push_back("sse"); |
| if (cpu_.has_sse2()) |
| features.push_back("sse2"); |
| if (cpu_.has_sse3()) |
| features.push_back("sse3"); |
| if (cpu_.has_ssse3()) |
| features.push_back("ssse3"); |
| if (cpu_.has_sse41()) |
| features.push_back("sse4_1"); |
| if (cpu_.has_sse42()) |
| features.push_back("sse4_2"); |
| if (cpu_.has_avx()) |
| features.push_back("avx"); |
| return features; |
| } |
| |
| // static |
| CpuInfoProvider* CpuInfoProvider::Get() { |
| if (provider_.Get().get() == NULL) |
| provider_.Get() = new CpuInfoProvider(); |
| return provider_.Get().get(); |
| } |
| |
| } // namespace extensions |