| // 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. |
| |
| #ifndef CHROME_BROWSER_EXTENSIONS_API_SYSTEM_CPU_CPU_INFO_PROVIDER_H_ |
| #define CHROME_BROWSER_EXTENSIONS_API_SYSTEM_CPU_CPU_INFO_PROVIDER_H_ |
| |
| #include <vector> |
| |
| #include "base/cpu.h" |
| #include "base/lazy_instance.h" |
| #include "chrome/browser/extensions/api/system_info/system_info_provider.h" |
| #include "chrome/common/extensions/api/system_cpu.h" |
| |
| namespace extensions { |
| |
| class CpuInfoProvider : public SystemInfoProvider { |
| public: |
| // Return the single shared instance of CpuInfoProvider. |
| static CpuInfoProvider* Get(); |
| |
| const api::system_cpu::CpuInfo& cpu_info() const; |
| |
| static void InitializeForTesting(scoped_refptr<CpuInfoProvider> provider); |
| |
| private: |
| friend class MockCpuInfoProviderImpl; |
| |
| CpuInfoProvider(); |
| virtual ~CpuInfoProvider(); |
| |
| // Platform specific implementation for querying the CPU time information |
| // for each processor. |
| virtual bool QueryCpuTimePerProcessor( |
| std::vector<linked_ptr<api::system_cpu::ProcessorInfo> >* infos); |
| |
| // Overriden from SystemInfoProvider. |
| virtual bool QueryInfo() OVERRIDE; |
| |
| // Creates a list of codenames for currently active features. |
| std::vector<std::string> GetFeatures() const; |
| |
| // The last information filled up by QueryInfo and is accessed on multiple |
| // threads, but the whole class is being guarded by SystemInfoProvider base |
| // class. |
| // |
| // |info_| is accessed on the UI thread while |is_waiting_for_completion_| is |
| // false and on the sequenced worker pool while |is_waiting_for_completion_| |
| // is true. |
| api::system_cpu::CpuInfo info_; |
| |
| static base::LazyInstance<scoped_refptr<CpuInfoProvider> > provider_; |
| base::CPU cpu_; |
| |
| DISALLOW_COPY_AND_ASSIGN(CpuInfoProvider); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // CHROME_BROWSER_EXTENSIONS_API_SYSTEM_CPU_CPU_INFO_PROVIDER_H_ |