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Diffstat (limited to 'src/system_wrappers/source/cpu_win.h')
-rw-r--r-- | src/system_wrappers/source/cpu_win.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/system_wrappers/source/cpu_win.h b/src/system_wrappers/source/cpu_win.h new file mode 100644 index 0000000000..d15073c0ba --- /dev/null +++ b/src/system_wrappers/source/cpu_win.h @@ -0,0 +1,103 @@ +// This file contains a Windows implementation of CpuWrapper. +// Note: Windows XP, Windows Server 2003 are the minimum requirements. +// The requirements are due to the implementation being based on +// WMI. +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_CPU_WINDOWS_NO_CPOL_H_ +#define WEBRTC_SYSTEM_WRAPPERS_SOURCE_CPU_WINDOWS_NO_CPOL_H_ + +#include "cpu_wrapper.h" + +#include <Wbemidl.h> + +namespace webrtc { +class ConditionVariableWrapper; +class CriticalSectionWrapper; +class EventWrapper; +class ThreadWrapper; + +class CpuWindows : public CpuWrapper +{ +public: + virtual WebRtc_Word32 CpuUsage(); + virtual WebRtc_Word32 CpuUsage(WebRtc_Word8* /*pProcessName*/, + WebRtc_UWord32 /*length*/) {return -1;} + virtual WebRtc_Word32 CpuUsage(WebRtc_UWord32 /*dwProcessID*/) {return -1;} + + virtual WebRtc_Word32 CpuUsageMultiCore(WebRtc_UWord32& num_cores, + WebRtc_UWord32*& cpu_usage); + + virtual void Reset() {} + virtual void Stop() {} + + CpuWindows(); + virtual ~CpuWindows(); +private: + bool AllocateComplexDataTypes(); + void DeAllocateComplexDataTypes(); + + void StartPollingCpu(); + bool StopPollingCpu(); + + static bool Process(void* thread_object); + bool ProcessImpl(); + + bool CreateWmiConnection(); + bool CreatePerfOsRefresher(); + bool CreatePerfOsCpuHandles(); + bool Initialize(); + bool Terminate(); + + bool UpdateCpuUsage(); + + ThreadWrapper* cpu_polling_thread; + + bool initialize_; + bool has_initialized_; + CriticalSectionWrapper* init_crit_; + ConditionVariableWrapper* init_cond_; + + bool terminate_; + bool has_terminated_; + CriticalSectionWrapper* terminate_crit_; + ConditionVariableWrapper* terminate_cond_; + + // For sleep with wake-up functionality. + EventWrapper* sleep_event; + + // Will be an array. Just care about CPU 0 for now. + WebRtc_UWord32* cpu_usage_; + + // One IWbemObjectAccess for each processor and one for the total. + // 0-n-1 is the individual processors. + // n is the total. + IWbemObjectAccess** wbem_enum_access_; + DWORD number_of_objects_; + + // Cpu timestamp + long cpu_usage_handle_; + unsigned __int64* previous_processor_timestamp_; + + // Timestamp + long timestamp_sys_100_ns_handle_; + unsigned __int64* previous_100ns_timestamp_; + + IWbemServices* wbem_service_; + IWbemServices* wbem_service_proxy_; + + IWbemRefresher* wbem_refresher_; + + IWbemHiPerfEnum* wbem_enum_; + +}; +} // namespace webrtc +#endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_CPU_WINDOWS_NO_CPOL_H_ |