OLD | NEW |
| (Empty) |
1 // Copyright 2013 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 #include "chrome/browser/extensions/api/system_cpu/cpu_info_provider.h" | |
6 | |
7 #include "base/sys_info.h" | |
8 | |
9 namespace extensions { | |
10 | |
11 using api::system_cpu::CpuInfo; | |
12 | |
13 // Static member intialization. | |
14 base::LazyInstance<scoped_refptr<CpuInfoProvider> > | |
15 CpuInfoProvider::provider_ = LAZY_INSTANCE_INITIALIZER; | |
16 | |
17 CpuInfoProvider::CpuInfoProvider() {} | |
18 | |
19 CpuInfoProvider::~CpuInfoProvider() {} | |
20 | |
21 const CpuInfo& CpuInfoProvider::cpu_info() const { | |
22 return info_; | |
23 } | |
24 | |
25 void CpuInfoProvider::InitializeForTesting( | |
26 scoped_refptr<CpuInfoProvider> provider) { | |
27 DCHECK(provider.get() != NULL); | |
28 provider_.Get() = provider; | |
29 } | |
30 | |
31 bool CpuInfoProvider::QueryInfo() { | |
32 info_.num_of_processors = base::SysInfo::NumberOfProcessors(); | |
33 info_.arch_name = base::SysInfo::OperatingSystemArchitecture(); | |
34 info_.model_name = base::SysInfo::CPUModelName(); | |
35 info_.features = GetFeatures(); | |
36 | |
37 info_.processors.clear(); | |
38 // Fill in the correct number of uninitialized ProcessorInfos. | |
39 for (int i = 0; i < info_.num_of_processors; ++i) { | |
40 info_.processors.push_back(linked_ptr<api::system_cpu::ProcessorInfo>( | |
41 new api::system_cpu::ProcessorInfo())); | |
42 } | |
43 // Initialize the ProcessorInfos, or return an empty array if that fails. | |
44 if (!QueryCpuTimePerProcessor(&info_.processors)) | |
45 info_.processors.clear(); | |
46 return true; | |
47 } | |
48 | |
49 std::vector<std::string> CpuInfoProvider::GetFeatures() const { | |
50 std::vector<std::string> features; | |
51 // These are the feature codes used by /proc/cpuinfo on Linux. | |
52 if (cpu_.has_mmx()) features.push_back("mmx"); | |
53 if (cpu_.has_sse()) features.push_back("sse"); | |
54 if (cpu_.has_sse2()) features.push_back("sse2"); | |
55 if (cpu_.has_sse3()) features.push_back("sse3"); | |
56 if (cpu_.has_ssse3()) features.push_back("ssse3"); | |
57 if (cpu_.has_sse41()) features.push_back("sse4_1"); | |
58 if (cpu_.has_sse42()) features.push_back("sse4_2"); | |
59 if (cpu_.has_avx()) features.push_back("avx"); | |
60 return features; | |
61 } | |
62 | |
63 // static | |
64 CpuInfoProvider* CpuInfoProvider::Get() { | |
65 if (provider_.Get().get() == NULL) | |
66 provider_.Get() = new CpuInfoProvider(); | |
67 return provider_.Get(); | |
68 } | |
69 | |
70 } // namespace extensions | |
OLD | NEW |