chrome/browser/extensions/api/system_cpu/cpu_info_provider.h - Issue 389633002: Move system.* family of APIs to extensions/

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Side by Side Diff: chrome/browser/extensions/api/system_cpu/cpu_info_provider.h

Issue 389633002: Move system.* family of APIs to extensions/ (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Inlined simple getters and removed redundant namespace decl Created 6 years, 3 months ago

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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 #ifndef CHROME_BROWSER_EXTENSIONS_API_SYSTEM_CPU_CPU_INFO_PROVIDER_H_

6 #define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_CPU_CPU_INFO_PROVIDER_H_

7

8 #include <vector>

9

10 #include "base/cpu.h"

11 #include "base/lazy_instance.h"

12 #include "chrome/browser/extensions/api/system_info/system_info_provider.h"

13 #include "chrome/common/extensions/api/system_cpu.h"

14

15 namespace extensions {

16

17 class CpuInfoProvider : public SystemInfoProvider {

18 public:

19 // Return the single shared instance of CpuInfoProvider.

20 static CpuInfoProvider* Get();

21

22 const api::system_cpu::CpuInfo& cpu_info() const;

23

24 static void InitializeForTesting(scoped_refptr<CpuInfoProvider> provider);

25

26 private:

27 friend class MockCpuInfoProviderImpl;

28

29 CpuInfoProvider();

30 virtual ~CpuInfoProvider();

31

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);

36

37 // Overriden from SystemInfoProvider.

38 virtual bool QueryInfo() OVERRIDE;

39

40 // Creates a list of codenames for currently active features.

41 std::vector<std::string> GetFeatures() const;

42

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.

46 //

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_;

51

52 static base::LazyInstance<scoped_refptr<CpuInfoProvider> > provider_;

53 base::CPU cpu_;

54

55 DISALLOW_COPY_AND_ASSIGN(CpuInfoProvider);

56 };

57

58 } // namespace extensions

59

60 #endif // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_CPU_CPU_INFO_PROVIDER_H_

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