1 /*
2  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_CPU_LINUX_H_
12 #define WEBRTC_SYSTEM_WRAPPERS_SOURCE_CPU_LINUX_H_
13 
14 #include "cpu_wrapper.h"
15 
16 namespace webrtc {
17 class CpuLinux : public CpuWrapper
18 {
19 public:
20     CpuLinux();
21     virtual ~CpuLinux();
22 
23     virtual WebRtc_Word32 CpuUsage();
CpuUsage(WebRtc_Word8 *,WebRtc_UWord32)24     virtual WebRtc_Word32 CpuUsage(WebRtc_Word8* /*pProcessName*/,
25                                    WebRtc_UWord32 /*length*/) {return 0;}
CpuUsage(WebRtc_UWord32)26     virtual WebRtc_Word32 CpuUsage(WebRtc_UWord32 /*dwProcessID*/) {return 0;}
27 
28     virtual WebRtc_Word32 CpuUsageMultiCore(WebRtc_UWord32& numCores,
29                                             WebRtc_UWord32*& array);
30 
Reset()31     virtual void Reset() {return;}
Stop()32     virtual void Stop() {return;}
33 private:
34     int GetData(long long& busy, long long& idle, long long*& busyArray,
35                 long long*& idleArray);
36     int GetNumCores();
37 
38     long long m_oldBusyTime;
39     long long m_oldIdleTime;
40 
41     long long* m_oldBusyTimeMulti;
42     long long* m_oldIdleTimeMulti;
43 
44     long long* m_idleArray;
45     long long* m_busyArray;
46     WebRtc_UWord32* m_resultArray;
47     WebRtc_UWord32  m_numCores;
48 };
49 } // namespace webrtc
50 
51 #endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_CPU_LINUX_H_
52