Add ICU message format support
[chromium-blink-merge.git] / extensions / browser / api / system_cpu / cpu_info_provider.h
blob3712a1b3d330f0163c2fc6c1faf98f72428885f6
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.
5 #ifndef EXTENSIONS_BROWSER_API_SYSTEM_CPU_CPU_INFO_PROVIDER_H_
6 #define EXTENSIONS_BROWSER_API_SYSTEM_CPU_CPU_INFO_PROVIDER_H_
8 #include <vector>
10 #include "base/cpu.h"
11 #include "base/lazy_instance.h"
12 #include "extensions/browser/api/system_info/system_info_provider.h"
13 #include "extensions/common/api/system_cpu.h"
15 namespace extensions {
17 class CpuInfoProvider : public SystemInfoProvider {
18 public:
19 // Return the single shared instance of CpuInfoProvider.
20 static CpuInfoProvider* Get();
22 const api::system_cpu::CpuInfo& cpu_info() const { return info_; }
24 static void InitializeForTesting(scoped_refptr<CpuInfoProvider> provider);
26 private:
27 friend class MockCpuInfoProviderImpl;
29 CpuInfoProvider();
30 ~CpuInfoProvider() override;
32 // Platform specific implementation for querying the CPU time information
33 // for each processor.
34 virtual bool QueryCpuTimePerProcessor(
35 std::vector<linked_ptr<api::system_cpu::ProcessorInfo>>* infos);
37 // Overriden from SystemInfoProvider.
38 bool QueryInfo() override;
40 // Creates a list of codenames for currently active features.
41 std::vector<std::string> GetFeatures() const;
43 // The last information filled up by QueryInfo and is accessed on multiple
44 // threads, but the whole class is being guarded by SystemInfoProvider base
45 // class.
47 // |info_| is accessed on the UI thread while |is_waiting_for_completion_| is
48 // false and on the sequenced worker pool while |is_waiting_for_completion_|
49 // is true.
50 api::system_cpu::CpuInfo info_;
52 static base::LazyInstance<scoped_refptr<CpuInfoProvider> > provider_;
53 base::CPU cpu_;
55 DISALLOW_COPY_AND_ASSIGN(CpuInfoProvider);
58 } // namespace extensions
60 #endif // EXTENSIONS_BROWSER_API_SYSTEM_CPU_CPU_INFO_PROVIDER_H_